GNUnet  0.17.6
Data Structures | Macros | Functions | Variables
gnunet-service-fs_pr.c File Reference

API to handle pending requests. More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_load_lib.h"
#include "gnunet-service-fs.h"
#include "gnunet-service-fs_cp.h"
#include "gnunet-service-fs_indexing.h"
#include "gnunet-service-fs_pe.h"
#include "gnunet-service-fs_pr.h"
#include "gnunet-service-fs_cadet.h"
Include dependency graph for gnunet-service-fs_pr.c:

Go to the source code of this file.

Data Structures

struct  GSF_PendingRequest
 An active request. More...
 
struct  ProcessReplyClosure
 Closure for process_reply() function. More...
 
struct  PutMigrationContext
 Context for put_migration_continuation(). More...
 

Macros

#define DHT_GET_REPLICATION   5
 Desired replication level for GETs. More...
 
#define MAX_DATASTORE_QUEUE   (16 * MAX_QUEUE_PER_PEER)
 Maximum size of the datastore queue for P2P operations. More...
 
#define CONTENT_BANDWIDTH_VALUE   800
 Bandwidth value of a 0-priority content (must be fairly high compared to query since content is typically significantly larger – and more valuable since it can take many queries to get one piece of content). More...
 
#define MAX_RESULTS   (100 * 1024)
 Hard limit on the number of results we may get from the datastore per query. More...
 
#define INSANE_STATISTICS   GNUNET_NO
 Collect an instance number of statistics? May cause excessive IPC. More...
 
#define CADET_RETRY_MAX   3
 If obtaining a block via cadet fails, how often do we retry it before giving up for good (and sticking to non-anonymous transfer)? More...
 

Functions

static void refresh_bloomfilter (enum GNUNET_BLOCK_Type type, struct GSF_PendingRequest *pr)
 Recalculate our bloom filter for filtering replies. More...
 
struct GSF_PendingRequestGSF_pending_request_create_ (enum GSF_PendingRequestOptions options, enum GNUNET_BLOCK_Type type, const struct GNUNET_HashCode *query, const struct GNUNET_PeerIdentity *target, const char *bf_data, size_t bf_size, uint32_t anonymity_level, uint32_t priority, int32_t ttl, GNUNET_PEER_Id sender_pid, GNUNET_PEER_Id origin_pid, const struct GNUNET_HashCode *replies_seen, unsigned int replies_seen_count, GSF_PendingRequestReplyHandler rh, void *rh_cls)
 Create a new pending request. More...
 
struct GSF_PendingRequestDataGSF_pending_request_get_data_ (struct GSF_PendingRequest *pr)
 Obtain the public data associated with a pending request. More...
 
int GSF_pending_request_is_compatible_ (struct GSF_PendingRequest *pra, struct GSF_PendingRequest *prb)
 Test if two pending requests are compatible (would generate the same query modulo filters and should thus be processed jointly). More...
 
void GSF_pending_request_update_ (struct GSF_PendingRequest *pr, const struct GNUNET_HashCode *replies_seen, unsigned int replies_seen_count)
 Update a given pending request with additional replies that have been seen. More...
 
struct GNUNET_MQ_EnvelopeGSF_pending_request_get_message_ (struct GSF_PendingRequest *pr)
 Generate the message corresponding to the given pending request for transmission to other peers. More...
 
static int clean_request (void *cls, const struct GNUNET_HashCode *key, void *value)
 Iterator to free pending requests. More...
 
void GSF_pending_request_cancel_ (struct GSF_PendingRequest *pr, int full_cleanup)
 Explicitly cancel a pending request. More...
 
void GSF_iterate_pending_requests_ (GSF_PendingRequestIterator it, void *cls)
 Iterate over all pending requests. More...
 
static void update_request_performance_data (struct ProcessReplyClosure *prq, struct GSF_PendingRequest *pr)
 Update the performance data for the sender (if any) since the sender successfully answered one of our queries. More...
 
static enum GNUNET_GenericReturnValue process_reply (void *cls, const struct GNUNET_HashCode *key, void *value)
 We have received a reply; handle it! More...
 
static void put_migration_continuation (void *cls, int success, struct GNUNET_TIME_Absolute min_expiration, const char *msg)
 Continuation called to notify client about result of the operation. More...
 
static int test_put_load_too_high (uint32_t priority)
 Test if the DATABASE (PUT) load on this peer is too high to even consider processing the query at all. More...
 
static void handle_dht_reply (void *cls, struct GNUNET_TIME_Absolute exp, const struct GNUNET_HashCode *key, const struct GNUNET_PeerIdentity *trunc_peer, const struct GNUNET_DHT_PathElement *get_path, unsigned int get_path_length, const struct GNUNET_DHT_PathElement *put_path, unsigned int put_path_length, enum GNUNET_BLOCK_Type type, size_t size, const void *data)
 Iterator called on each result obtained for a DHT operation that expects a reply. More...
 
void GSF_dht_lookup_ (struct GSF_PendingRequest *pr)
 Consider looking up the data in the DHT (anonymity-level permitting). More...
 
static void cadet_reply_proc (void *cls, enum GNUNET_BLOCK_Type type, struct GNUNET_TIME_Absolute expiration, size_t data_size, const void *data)
 Function called with a reply from the cadet. More...
 
void GSF_cadet_lookup_ (struct GSF_PendingRequest *pr)
 Consider downloading via cadet (if possible) More...
 
static void warn_delay_task (void *cls)
 Task that issues a warning if the datastore lookup takes too long. More...
 
static void odc_warn_delay_task (void *cls)
 Task that issues a warning if the datastore lookup takes too long. More...
 
static void call_continuation (struct GSF_PendingRequest *pr)
 
static void no_more_local_results (struct GSF_PendingRequest *pr)
 
static void process_local_reply (void *cls, const struct GNUNET_HashCode *key, size_t size, const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority, uint32_t anonymity, uint32_t replication, struct GNUNET_TIME_Absolute expiration, uint64_t uid)
 We're processing (local) results for a search request from another peer. More...
 
static void start_local_query (struct GSF_PendingRequest *pr, uint64_t next_uid, bool random)
 
int GSF_pending_request_test_target_ (struct GSF_PendingRequest *pr, const struct GNUNET_PeerIdentity *target)
 Is the given target a legitimate peer for forwarding the given request? More...
 
void GSF_local_lookup_ (struct GSF_PendingRequest *pr, GSF_LocalLookupContinuation cont, void *cont_cls)
 Look up the request in the local datastore. More...
 
void handle_p2p_put (void *cls, const struct PutMessage *put)
 Handle P2P "CONTENT" message. More...
 
int GSF_pending_request_test_active_ (struct GSF_PendingRequest *pr)
 Check if the given request is still active. More...
 
void GSF_pending_request_init_ ()
 Setup the subsystem. More...
 
void GSF_pending_request_done_ ()
 Shutdown the subsystem. More...
 

Variables

static struct GNUNET_CONTAINER_MultiHashMappr_map
 All pending requests, ordered by the query. More...
 
static struct GNUNET_LOAD_Valuedatastore_put_load
 Datastore 'PUT' load tracking. More...
 
static int active_to_migration
 Are we allowed to migrate content to this peer. More...
 
static struct GNUNET_CONTAINER_Heaprequests_by_expiration_heap
 Heap with the request that will expire next at the top. More...
 
static unsigned long long max_pending_requests = (32 * 1024)
 Maximum number of requests (from other peers, overall) that we're willing to have pending at any given point in time. More...
 

Detailed Description

API to handle pending requests.

Author
Christian Grothoff

Definition in file gnunet-service-fs_pr.c.

Macro Definition Documentation

◆ DHT_GET_REPLICATION

#define DHT_GET_REPLICATION   5

Desired replication level for GETs.

Definition at line 40 of file gnunet-service-fs_pr.c.

◆ MAX_DATASTORE_QUEUE

#define MAX_DATASTORE_QUEUE   (16 * MAX_QUEUE_PER_PEER)

Maximum size of the datastore queue for P2P operations.

Needs to be large enough to queue MAX_QUEUE_PER_PEER operations for roughly the number of active (connected) peers.

Definition at line 47 of file gnunet-service-fs_pr.c.

◆ CONTENT_BANDWIDTH_VALUE

#define CONTENT_BANDWIDTH_VALUE   800

Bandwidth value of a 0-priority content (must be fairly high compared to query since content is typically significantly larger – and more valuable since it can take many queries to get one piece of content).

Definition at line 55 of file gnunet-service-fs_pr.c.

◆ MAX_RESULTS

#define MAX_RESULTS   (100 * 1024)

Hard limit on the number of results we may get from the datastore per query.

Definition at line 60 of file gnunet-service-fs_pr.c.

◆ INSANE_STATISTICS

#define INSANE_STATISTICS   GNUNET_NO

Collect an instance number of statistics? May cause excessive IPC.

Definition at line 65 of file gnunet-service-fs_pr.c.

◆ CADET_RETRY_MAX

#define CADET_RETRY_MAX   3

If obtaining a block via cadet fails, how often do we retry it before giving up for good (and sticking to non-anonymous transfer)?

Definition at line 71 of file gnunet-service-fs_pr.c.

Function Documentation

◆ refresh_bloomfilter()

static void refresh_bloomfilter ( enum GNUNET_BLOCK_Type  type,
struct GSF_PendingRequest pr 
)
static

Recalculate our bloom filter for filtering replies.

This function will create a new bloom filter from scratch, so it should only be called if we have no bloomfilter at all (and hence can create a fresh one of minimal size without problems) OR if our peer is the initiator (in which case we may resize to larger than minimum size).

Parameters
typetype of the request
prrequest for which the BF is to be recomputed

Definition at line 250 of file gnunet-service-fs_pr.c.

252 {
253  if (NULL != pr->bg)
254  {
256  pr->bg = NULL;
257  }
259  return; /* no need */
260  pr->bg =
262  type,
263  NULL,
264  0,
265  "seen-set-size",
266  pr->replies_seen_count,
267  NULL);
268  if (NULL == pr->bg)
269  return;
272  pr->replies_seen,
273  pr->replies_seen_count));
274 }
struct GNUNET_BLOCK_Context * GSF_block_ctx
Our block context.
@ GNUNET_BLOCK_TYPE_FS_UBLOCK
Type of a block representing any type of search result (universal).
enum GNUNET_GenericReturnValue GNUNET_BLOCK_group_set_seen(struct GNUNET_BLOCK_Group *bg, const struct GNUNET_HashCode *seen_results, unsigned int seen_results_count)
Update block group to filter out the given results.
Definition: block.c:360
void GNUNET_BLOCK_group_destroy(struct GNUNET_BLOCK_Group *bg)
Destroy resources used by a block group.
Definition: block.c:192
struct GNUNET_BLOCK_Group * GNUNET_BLOCK_group_create(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, const void *raw_data, size_t raw_data_size,...)
Create a new block group.
Definition: block.c:247
@ GNUNET_OK
Definition: gnunet_common.h:99
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
struct GNUNET_BLOCK_Group * bg
Block group for filtering replies we've already seen.
unsigned int replies_seen_count
Number of valid entries in the 'replies_seen' array.
struct GNUNET_HashCode * replies_seen
Array of hash codes of replies we've already seen.
enum GNUNET_TESTBED_UnderlayLinkModelType type
the type of this model

References GSF_PendingRequest::bg, GNUNET_BLOCK_group_create(), GNUNET_BLOCK_group_destroy(), GNUNET_BLOCK_group_set_seen(), GNUNET_BLOCK_TYPE_FS_UBLOCK, GNUNET_break, GNUNET_OK, GSF_block_ctx, GSF_PendingRequest::replies_seen, GSF_PendingRequest::replies_seen_count, and type.

Referenced by GSF_pending_request_create_(), and GSF_pending_request_update_().

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◆ GSF_pending_request_create_()

struct GSF_PendingRequest* GSF_pending_request_create_ ( enum GSF_PendingRequestOptions  options,
enum GNUNET_BLOCK_Type  type,
const struct GNUNET_HashCode query,
const struct GNUNET_PeerIdentity target,
const char *  bf_data,
size_t  bf_size,
uint32_t  anonymity_level,
uint32_t  priority,
int32_t  ttl,
GNUNET_PEER_Id  sender_pid,
GNUNET_PEER_Id  origin_pid,
const struct GNUNET_HashCode replies_seen,
unsigned int  replies_seen_count,
GSF_PendingRequestReplyHandler  rh,
void *  rh_cls 
)

Create a new pending request.

Parameters
optionsrequest options
typetype of the block that is being requested
querykey for the lookup
targetpreferred target for the request, NULL for none
bf_dataraw data for bloom filter for known replies, can be NULL
bf_sizenumber of bytes in bf_data
anonymity_leveldesired anonymity level
prioritymaximum outgoing cumulative request priority to use
ttlcurrent time-to-live for the request
sender_pidpeer ID to use for the sender when forwarding, 0 for none; reference counter is taken over by this function
origin_pidpeer ID of origin of query (do not loop back)
replies_seenhash codes of known local replies
replies_seen_countsize of the 'replies_seen' array
rhhandle to call when we get a reply
rh_clsclosure for rh
Returns
handle for the new pending request

Definition at line 278 of file gnunet-service-fs_pr.c.

293 {
294  struct GSF_PendingRequest *pr;
295  struct GSF_PendingRequest *dpr;
296  size_t extra;
297  struct GNUNET_HashCode *eptr;
298 
300  "Creating request handle for `%s' of type %d\n",
301  GNUNET_h2s (query),
302  type);
303 #if INSANE_STATISTICS
305  gettext_noop ("# Pending requests created"),
306  1,
307  GNUNET_NO);
308 #endif
309  extra = 0;
310  if (NULL != target)
311  extra += sizeof(struct GNUNET_PeerIdentity);
312  pr = GNUNET_malloc (sizeof(struct GSF_PendingRequest) + extra);
313  pr->public_data.query = *query;
314  eptr = (struct GNUNET_HashCode *) &pr[1];
315  if (NULL != target)
316  {
317  pr->public_data.target = (struct GNUNET_PeerIdentity *) eptr;
318  GNUNET_memcpy (eptr, target, sizeof(struct GNUNET_PeerIdentity));
319  }
321  pr->public_data.priority = priority;
322  pr->public_data.original_priority = priority;
324  pr->public_data.type = type;
326  pr->sender_pid = sender_pid;
327  pr->origin_pid = origin_pid;
328  pr->rh = rh;
329  pr->rh_cls = rh_cls;
330  GNUNET_assert ((sender_pid != 0) || (0 == (options & GSF_PRO_FORWARD_ONLY)));
331  if (ttl >= 0)
334  else
338  (uint32_t) (-ttl)));
339  if (replies_seen_count > 0)
340  {
341  pr->replies_seen_size = replies_seen_count;
342  pr->replies_seen =
345  replies_seen,
346  replies_seen_count * sizeof(struct GNUNET_HashCode));
347  pr->replies_seen_count = replies_seen_count;
348  }
349  if ((NULL != bf_data) &&
351  {
353  pr->public_data.type,
354  bf_data,
355  bf_size,
356  "seen-set-size",
357  0,
358  NULL);
359  }
360  else if ((replies_seen_count > 0) &&
362  {
364  }
366  &pr->public_data.query,
367  pr,
370  {
372  pr,
374  /* make sure we don't track too many requests */
377  {
379  GNUNET_assert (NULL != dpr);
380  if (pr == dpr)
381  break; /* let the request live briefly... */
382  if (NULL != dpr->rh)
383  dpr->rh (dpr->rh_cls,
385  dpr,
386  UINT32_MAX,
390  NULL,
391  0);
393  }
394  }
396  gettext_noop ("# Pending requests active"),
397  1,
398  GNUNET_NO);
399  return pr;
400 }
struct GNUNET_GETOPT_CommandLineOption options[]
Definition: 002.c:5
#define gettext_noop(String)
Definition: gettext.h:69
static unsigned int anonymity_level
Anonymity level option to use for publishing.
struct GNUNET_STATISTICS_Handle * GSF_stats
Handle for reporting statistics.
static unsigned long long max_pending_requests
Maximum number of requests (from other peers, overall) that we're willing to have pending at any give...
static void refresh_bloomfilter(enum GNUNET_BLOCK_Type type, struct GSF_PendingRequest *pr)
Recalculate our bloom filter for filtering replies.
static struct GNUNET_CONTAINER_Heap * requests_by_expiration_heap
Heap with the request that will expire next at the top.
static struct GNUNET_CONTAINER_MultiHashMap * pr_map
All pending requests, ordered by the query.
void GSF_pending_request_cancel_(struct GSF_PendingRequest *pr, int full_cleanup)
Explicitly cancel a pending request.
@ GSF_PRO_FORWARD_ONLY
Request must only be forwarded (no routing)
@ GSF_PRO_BLOOMFILTER_FULL_REFRESH
Request is allowed to refresh bloomfilter and change mingle value.
@ GSF_PRO_REQUEST_NEVER_EXPIRES
Request persists indefinitely (no expiration).
@ GNUNET_BLOCK_TYPE_ANY
Identifier for any block.
@ GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED
Specified block type not supported by any plugin.
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_put(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, void *value, enum GNUNET_CONTAINER_MultiHashMapOption opt)
Store a key-value pair in the map.
@ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE
Allow multiple values with the same key.
struct GNUNET_CONTAINER_HeapNode * GNUNET_CONTAINER_heap_insert(struct GNUNET_CONTAINER_Heap *heap, void *element, GNUNET_CONTAINER_HeapCostType cost)
Inserts a new element into the heap.
void * GNUNET_CONTAINER_heap_peek(const struct GNUNET_CONTAINER_Heap *heap)
Get element stored at the root of heap.
unsigned int GNUNET_CONTAINER_heap_get_size(const struct GNUNET_CONTAINER_Heap *heap)
Get the current size of the heap.
#define GNUNET_log(kind,...)
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
@ GNUNET_YES
@ GNUNET_NO
Definition: gnunet_common.h:98
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
@ GNUNET_ERROR_TYPE_DEBUG
#define GNUNET_malloc(size)
Wrapper around malloc.
#define GNUNET_new_array(n, type)
Allocate a size n array with structs or unions of the given type.
void GNUNET_STATISTICS_update(struct GNUNET_STATISTICS_Handle *handle, const char *name, int64_t delta, int make_persistent)
Set statistic value for the peer.
#define GNUNET_TIME_UNIT_SECONDS
One second.
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_get(void)
Get the current time.
Definition: time.c:110
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_subtract(struct GNUNET_TIME_Absolute start, struct GNUNET_TIME_Relative duration)
Subtract a given relative duration from the given start time.
Definition: time.c:468
struct GNUNET_TIME_Absolute GNUNET_TIME_relative_to_absolute(struct GNUNET_TIME_Relative rel)
Convert relative time to an absolute time in the future.
Definition: time.c:315
struct GNUNET_TIME_Relative GNUNET_TIME_relative_multiply(struct GNUNET_TIME_Relative rel, unsigned long long factor)
Multiply relative time by a given factor.
Definition: time.c:483
#define GNUNET_TIME_UNIT_FOREVER_ABS
Constant used to specify "forever".
A 512-bit hashcode.
The identity of the host (wraps the signing key of the peer).
uint64_t abs_value_us
The actual value.
const struct GNUNET_PeerIdentity * target
Identity of a peer hosting the content, otherwise NULl.
struct GNUNET_TIME_Absolute ttl
Current TTL for the request.
enum GNUNET_BLOCK_Type type
Type of the requested block.
enum GSF_PendingRequestOptions options
Options for the request.
uint32_t anonymity_level
Desired anonymity level.
struct GNUNET_HashCode query
Primary query hash for this request.
struct GNUNET_TIME_Absolute start_time
When did we start with the request.
uint32_t priority
Priority that this request (still) has for us.
uint32_t original_priority
Priority that this request (originally) had for us.
An active request.
unsigned int replies_seen_size
Length of the 'replies_seen' array.
GNUNET_PEER_Id sender_pid
Identity of the peer that we should use for the 'sender' (recipient of the response) when forwarding ...
GSF_PendingRequestReplyHandler rh
Function to call if we encounter a reply.
void * rh_cls
Closure for rh.
struct GSF_PendingRequestData public_data
Public data for the request.
struct GNUNET_CONTAINER_HeapNode * hnode
Entry for this pending request in the expiration heap, or NULL.
GNUNET_PEER_Id origin_pid
Identity of the peer that we should never forward this query to since it originated this query (0 for...

References GNUNET_TIME_Absolute::abs_value_us, anonymity_level, GSF_PendingRequestData::anonymity_level, GSF_PendingRequest::bg, gettext_noop, GNUNET_assert, GNUNET_BLOCK_group_create(), GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED, GNUNET_BLOCK_TYPE_ANY, GNUNET_BLOCK_TYPE_FS_UBLOCK, GNUNET_CONTAINER_heap_get_size(), GNUNET_CONTAINER_heap_insert(), GNUNET_CONTAINER_heap_peek(), GNUNET_CONTAINER_multihashmap_put(), GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE, GNUNET_ERROR_TYPE_DEBUG, GNUNET_h2s(), GNUNET_log, GNUNET_malloc, GNUNET_memcpy, GNUNET_new_array, GNUNET_NO, GNUNET_STATISTICS_update(), GNUNET_TIME_absolute_get(), GNUNET_TIME_absolute_subtract(), GNUNET_TIME_relative_multiply(), GNUNET_TIME_relative_to_absolute(), GNUNET_TIME_UNIT_FOREVER_ABS, GNUNET_TIME_UNIT_SECONDS, GNUNET_YES, GSF_block_ctx, GSF_pending_request_cancel_(), GSF_PRO_BLOOMFILTER_FULL_REFRESH, GSF_PRO_FORWARD_ONLY, GSF_PRO_REQUEST_NEVER_EXPIRES, GSF_stats, GSF_PendingRequest::hnode, max_pending_requests, options, GSF_PendingRequestData::options, GSF_PendingRequest::origin_pid, GSF_PendingRequestData::original_priority, pr_map, GSF_PendingRequestData::priority, GSF_PendingRequest::public_data, GSF_PendingRequestData::query, refresh_bloomfilter(), GSF_PendingRequest::replies_seen, GSF_PendingRequest::replies_seen_count, GSF_PendingRequest::replies_seen_size, requests_by_expiration_heap, GSF_PendingRequest::rh, GSF_PendingRequest::rh_cls, GSF_PendingRequest::sender_pid, GSF_PendingRequestData::start_time, GSF_PendingRequestData::target, GSF_PendingRequestData::ttl, GSF_PendingRequestData::type, and type.

Referenced by handle_client_start_search(), and handle_p2p_get().

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◆ GSF_pending_request_get_data_()

struct GSF_PendingRequestData* GSF_pending_request_get_data_ ( struct GSF_PendingRequest pr)

Obtain the public data associated with a pending request.

Parameters
prpending request
Returns
associated public data

Definition at line 410 of file gnunet-service-fs_pr.c.

411 {
412  return &pr->public_data;
413 }

References GSF_PendingRequest::public_data.

Referenced by client_response_handler(), free_pending_request(), get_latest(), get_rp_key(), GSF_plan_add_(), GSF_plan_notify_peer_disconnect_(), GSF_plan_notify_request_done_(), handle_client_start_search(), handle_p2p_get(), handle_p2p_reply(), merge_pr(), peer_request_destroy(), plan(), start_p2p_processing(), and test_exist_cb().

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◆ GSF_pending_request_is_compatible_()

int GSF_pending_request_is_compatible_ ( struct GSF_PendingRequest pra,
struct GSF_PendingRequest prb 
)

Test if two pending requests are compatible (would generate the same query modulo filters and should thus be processed jointly).

Parameters
praa pending request
prbanother pending request
Returns
GNUNET_OK if the requests are compatible

Definition at line 426 of file gnunet-service-fs_pr.c.

428 {
429  if ((pra->public_data.type != prb->public_data.type) ||
430  (0 != memcmp (&pra->public_data.query,
431  &prb->public_data.query,
432  sizeof(struct GNUNET_HashCode))))
433  return GNUNET_NO;
434  return GNUNET_OK;
435 }

References GNUNET_NO, GNUNET_OK, GSF_PendingRequest::public_data, GSF_PendingRequestData::query, and GSF_PendingRequestData::type.

Referenced by merge_pr().

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◆ GSF_pending_request_update_()

void GSF_pending_request_update_ ( struct GSF_PendingRequest pr,
const struct GNUNET_HashCode replies_seen,
unsigned int  replies_seen_count 
)

Update a given pending request with additional replies that have been seen.

Parameters
prrequest to update
replies_seenhash codes of replies that we've seen
replies_seen_countsize of the replies_seen array

Definition at line 439 of file gnunet-service-fs_pr.c.

442 {
443  if (replies_seen_count + pr->replies_seen_count < pr->replies_seen_count)
444  return; /* integer overflow */
446  {
447  /* we're responsible for the BF, full refresh */
448  if (replies_seen_count + pr->replies_seen_count > pr->replies_seen_size)
450  pr->replies_seen_size,
451  replies_seen_count + pr->replies_seen_count);
453  replies_seen,
454  sizeof(struct GNUNET_HashCode) * replies_seen_count);
455  pr->replies_seen_count += replies_seen_count;
457  }
458  else
459  {
460  if (NULL == pr->bg)
461  {
462  /* we're not the initiator, but the initiator did not give us
463  * any bloom-filter, so we need to create one on-the-fly */
465  }
466  else
467  {
470  replies_seen,
471  pr->replies_seen_count));
472  }
473  }
474  if (NULL != pr->gh)
476  replies_seen_count,
477  replies_seen);
478 }
void GNUNET_DHT_get_filter_known_results(struct GNUNET_DHT_GetHandle *get_handle, unsigned int num_results, const struct GNUNET_HashCode *results)
Tell the DHT not to return any of the following known results to this client.
Definition: dht_api.c:1213
#define GNUNET_array_grow(arr, size, tsize)
Grow a well-typed (!) array.
struct GNUNET_DHT_GetHandle * gh
DHT request handle for this request (or NULL for none).

References GSF_PendingRequest::bg, GSF_PendingRequest::gh, GNUNET_array_grow, GNUNET_BLOCK_group_set_seen(), GNUNET_break, GNUNET_DHT_get_filter_known_results(), GNUNET_memcpy, GNUNET_OK, GSF_PRO_BLOOMFILTER_FULL_REFRESH, GSF_PendingRequestData::options, GSF_PendingRequest::public_data, refresh_bloomfilter(), GSF_PendingRequest::replies_seen, GSF_PendingRequest::replies_seen_count, GSF_PendingRequest::replies_seen_size, and GSF_PendingRequestData::type.

Referenced by handle_client_start_search().

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◆ GSF_pending_request_get_message_()

struct GNUNET_MQ_Envelope* GSF_pending_request_get_message_ ( struct GSF_PendingRequest pr)

Generate the message corresponding to the given pending request for transmission to other peers.

Parameters
prrequest to generate the message for
Returns
envelope with the request message

Definition at line 489 of file gnunet-service-fs_pr.c.

490 {
491  struct GNUNET_MQ_Envelope *env;
492  struct GetMessage *gm;
493  struct GNUNET_PeerIdentity *ext;
494  unsigned int k;
495  uint32_t bm;
496  uint32_t prio;
497  size_t bf_size;
498  struct GNUNET_TIME_Absolute now;
499  int64_t ttl;
500  int do_route;
501  void *bf_data;
502 
504  "Building request message for `%s' of type %d\n",
506  pr->public_data.type);
507  k = 0;
508  bm = 0;
509  do_route = (0 == (pr->public_data.options & GSF_PRO_FORWARD_ONLY));
510  if ((! do_route) && (pr->sender_pid == 0))
511  {
512  GNUNET_break (0);
513  do_route = GNUNET_YES;
514  }
515  if (! do_route)
516  {
518  k++;
519  }
520  if (NULL != pr->public_data.target)
521  {
523  k++;
524  }
525  if (GNUNET_OK !=
527  &bf_data,
528  &bf_size))
529  {
530  bf_size = 0;
531  bf_data = NULL;
532  }
533  env = GNUNET_MQ_msg_extra (gm,
534  bf_size + k * sizeof(struct GNUNET_PeerIdentity),
536  gm->type = htonl (pr->public_data.type);
537  if (do_route)
539  pr->public_data.priority + 1);
540  else
541  prio = 0;
542  pr->public_data.priority -= prio;
544  pr->public_data.respect_offered += prio;
545  gm->priority = htonl (prio);
546  now = GNUNET_TIME_absolute_get ();
547  ttl = (int64_t) (pr->public_data.ttl.abs_value_us - now.abs_value_us);
548  gm->ttl = htonl (ttl / 1000LL / 1000LL);
549  gm->reserved = htonl (0);
550  gm->hash_bitmap = htonl (bm);
551  gm->query = pr->public_data.query;
552  ext = (struct GNUNET_PeerIdentity *) &gm[1];
553  k = 0;
554  if (! do_route)
555  GNUNET_PEER_resolve (pr->sender_pid, &ext[k++]);
556  if (NULL != pr->public_data.target)
557  ext[k++] = *pr->public_data.target;
558  GNUNET_memcpy (&ext[k], bf_data, bf_size);
559  GNUNET_free (bf_data);
560  return env;
561 }
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
#define GET_MESSAGE_BIT_TRANSMIT_TO
The peer identity of a peer that had claimed to have the content previously is included (can be used ...
#define GET_MESSAGE_BIT_RETURN_TO
The peer identity of a peer waiting for the reply is included (used if the response should be transmi...
enum GNUNET_GenericReturnValue GNUNET_BLOCK_group_serialize(struct GNUNET_BLOCK_Group *bg, void **raw_data, size_t *raw_data_size)
Serialize state of a block group.
Definition: block.c:175
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
@ GNUNET_CRYPTO_QUALITY_WEAK
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
#define GNUNET_free(ptr)
Wrapper around free.
#define GNUNET_MQ_msg_extra(mvar, esize, type)
Allocate an envelope, with extra space allocated after the space needed by the message struct.
Definition: gnunet_mq_lib.h:56
void GNUNET_PEER_resolve(GNUNET_PEER_Id id, struct GNUNET_PeerIdentity *pid)
Convert an interned PID to a normal peer identity.
Definition: peer.c:225
#define GNUNET_MESSAGE_TYPE_FS_GET
P2P request for content (one FS to another).
Time for absolute times used by GNUnet, in microseconds.
uint32_t respect_offered
How much respect did we (in total) offer for this request so far (estimate, because we might have the...
uint32_t num_transmissions
Counter for how often this request has been transmitted (estimate, because we might have the same req...
Message to the datastore service asking about specific content.
Definition: datastore.h:141
uint32_t type
Desired content type.
Definition: datastore.h:150
uint32_t priority
How important is this request (network byte order)
struct GNUNET_HashCode query
Hashcodes of the file(s) we're looking for.
uint32_t reserved
These days not used.
int32_t ttl
Relative time to live in MILLISECONDS (network byte order)
uint32_t hash_bitmap
Which of the optional hash codes are present at the end of the message? See GET_MESSAGE_BIT_xx consta...

References GNUNET_TIME_Absolute::abs_value_us, GSF_PendingRequest::bg, env, GET_MESSAGE_BIT_RETURN_TO, GET_MESSAGE_BIT_TRANSMIT_TO, GNUNET_BLOCK_group_serialize(), GNUNET_break, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_h2s(), GNUNET_log, GNUNET_memcpy, GNUNET_MESSAGE_TYPE_FS_GET, GNUNET_MQ_msg_extra, GNUNET_OK, GNUNET_PEER_resolve(), GNUNET_TIME_absolute_get(), GNUNET_YES, GSF_PRO_FORWARD_ONLY, GetMessage::hash_bitmap, GSF_PendingRequestData::num_transmissions, GSF_PendingRequestData::options, GetMessage::priority, GSF_PendingRequestData::priority, GSF_PendingRequest::public_data, GetMessage::query, GSF_PendingRequestData::query, GetMessage::reserved, GSF_PendingRequestData::respect_offered, GSF_PendingRequest::sender_pid, GSF_PendingRequestData::target, GetMessage::ttl, GSF_PendingRequestData::ttl, GetMessage::type, and GSF_PendingRequestData::type.

Referenced by schedule_peer_transmission().

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◆ clean_request()

static int clean_request ( void *  cls,
const struct GNUNET_HashCode key,
void *  value 
)
static

Iterator to free pending requests.

Parameters
clsclosure, unused
keycurrent key code
valuevalue in the hash map (pending request)
Returns
GNUNET_YES (we should continue to iterate)

Definition at line 573 of file gnunet-service-fs_pr.c.

574 {
575  struct GSF_PendingRequest *pr = value;
577 
579  "Cleaning up pending request for `%s'.\n",
580  GNUNET_h2s (key));
581  if (NULL != pr->cadet_request)
582  {
585  pr->cadet_request = NULL;
586  }
587  if (NULL != (cont = pr->llc_cont))
588  {
589  pr->llc_cont = NULL;
590  cont (pr->llc_cont_cls,
591  pr,
592  pr->local_result);
593  }
597  pr->bg = NULL;
599  pr->sender_pid = 0;
601  pr->origin_pid = 0;
602  if (NULL != pr->hnode)
603  {
605  pr->hnode = NULL;
606  }
607  if (NULL != pr->qe)
608  {
610  pr->qe = NULL;
611  }
612  if (NULL != pr->gh)
613  {
614  GNUNET_DHT_get_stop (pr->gh);
615  pr->gh = NULL;
616  }
617  if (NULL != pr->warn_task)
618  {
620  pr->warn_task = NULL;
621  }
622  GNUNET_assert (
623  GNUNET_OK ==
626  gettext_noop ("# Pending requests active"),
627  -1,
628  GNUNET_NO);
629  GNUNET_free (pr);
630  return GNUNET_YES;
631 }
struct GNUNET_HashCode key
The key used in the DHT.
static char * value
Value of the record to add/remove.
void GSF_cadet_query_cancel(struct GSF_CadetRequest *sr)
Cancel an active request; must not be called after 'proc' was called.
void GSF_plan_notify_request_done_(struct GSF_PendingRequest *pr)
Notify the plan about a request being done; destroy all entries associated with this request.
#define CADET_RETRY_MAX
If obtaining a block via cadet fails, how often do we retry it before giving up for good (and stickin...
void(* GSF_LocalLookupContinuation)(void *cls, struct GSF_PendingRequest *pr, enum GNUNET_BLOCK_ReplyEvaluationResult result)
Function to be called after we're done processing replies from the local lookup.
void GNUNET_DATASTORE_cancel(struct GNUNET_DATASTORE_QueueEntry *qe)
Cancel a datastore operation.
void GNUNET_DHT_get_stop(struct GNUNET_DHT_GetHandle *get_handle)
Stop async DHT-get.
Definition: dht_api.c:1237
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_remove(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, const void *value)
Remove the given key-value pair from the map.
void * GNUNET_CONTAINER_heap_remove_node(struct GNUNET_CONTAINER_HeapNode *node)
Removes a node from the heap.
void GNUNET_PEER_change_rc(GNUNET_PEER_Id id, int delta)
Change the reference counter of an interned PID.
Definition: peer.c:197
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:957
enum GNUNET_BLOCK_ReplyEvaluationResult local_result
Last result from the local datastore lookup evaluation.
struct GNUNET_DATASTORE_QueueEntry * qe
Datastore queue entry for this request (or NULL for none).
void * llc_cont_cls
Closure for llc_cont.
unsigned int cadet_retry_count
How often have we retried this request via 'cadet'? (used to bound overall retries).
struct GSF_CadetRequest * cadet_request
Cadet request handle for this request (or NULL for none).
GSF_LocalLookupContinuation llc_cont
Function to call upon completion of the local get request, or NULL for none.
struct GNUNET_SCHEDULER_Task * warn_task
Task that warns us if the local datastore lookup takes too long.

References GSF_PendingRequest::bg, GSF_PendingRequest::cadet_request, GSF_PendingRequest::cadet_retry_count, CADET_RETRY_MAX, gettext_noop, GSF_PendingRequest::gh, GNUNET_assert, GNUNET_BLOCK_group_destroy(), GNUNET_CONTAINER_heap_remove_node(), GNUNET_CONTAINER_multihashmap_remove(), GNUNET_DATASTORE_cancel(), GNUNET_DHT_get_stop(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_h2s(), GNUNET_log, GNUNET_NO, GNUNET_OK, GNUNET_PEER_change_rc(), GNUNET_SCHEDULER_cancel(), GNUNET_STATISTICS_update(), GNUNET_YES, GSF_cadet_query_cancel(), GSF_plan_notify_request_done_(), GSF_stats, GSF_PendingRequest::hnode, key, GSF_PendingRequest::llc_cont, GSF_PendingRequest::llc_cont_cls, GSF_PendingRequest::local_result, GSF_PendingRequest::origin_pid, pr_map, GSF_PendingRequest::public_data, GSF_PendingRequest::qe, GSF_PendingRequestData::query, GSF_PendingRequest::replies_seen, GSF_PendingRequest::sender_pid, value, and GSF_PendingRequest::warn_task.

Referenced by GSF_pending_request_cancel_().

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◆ GSF_pending_request_cancel_()

void GSF_pending_request_cancel_ ( struct GSF_PendingRequest pr,
int  full_cleanup 
)

Explicitly cancel a pending request.

Parameters
prrequest to cancel
full_cleanupfully purge the request

Definition at line 641 of file gnunet-service-fs_pr.c.

642 {
644 
645  if (NULL == pr_map)
646  return; /* already cleaned up! */
647  if (GNUNET_NO == full_cleanup)
648  {
649  /* make request inactive (we're no longer interested in more results),
650  * but do NOT remove from our data-structures, we still need it there
651  * to prevent the request from looping */
652  pr->rh = NULL;
653  if (NULL != pr->cadet_request)
654  {
657  pr->cadet_request = NULL;
658  }
659  if (NULL != (cont = pr->llc_cont))
660  {
661  pr->llc_cont = NULL;
662  cont (pr->llc_cont_cls,
663  pr,
664  pr->local_result);
665  }
667  if (NULL != pr->qe)
668  {
670  pr->qe = NULL;
671  }
672  if (NULL != pr->gh)
673  {
674  GNUNET_DHT_get_stop (pr->gh);
675  pr->gh = NULL;
676  }
677  if (NULL != pr->warn_task)
678  {
680  pr->warn_task = NULL;
681  }
682  return;
683  }
685  clean_request (NULL, &pr->public_data.query, pr));
686 }
static int clean_request(void *cls, const struct GNUNET_HashCode *key, void *value)
Iterator to free pending requests.

References GSF_PendingRequest::cadet_request, GSF_PendingRequest::cadet_retry_count, CADET_RETRY_MAX, clean_request(), GSF_PendingRequest::gh, GNUNET_assert, GNUNET_DATASTORE_cancel(), GNUNET_DHT_get_stop(), GNUNET_NO, GNUNET_SCHEDULER_cancel(), GNUNET_YES, GSF_cadet_query_cancel(), GSF_plan_notify_request_done_(), GSF_PendingRequest::llc_cont, GSF_PendingRequest::llc_cont_cls, GSF_PendingRequest::local_result, pr_map, GSF_PendingRequest::public_data, GSF_PendingRequest::qe, GSF_PendingRequestData::query, GSF_PendingRequest::rh, and GSF_PendingRequest::warn_task.

Referenced by cancel_pending_request(), client_request_destroy(), GSF_pending_request_create_(), and test_exist_cb().

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◆ GSF_iterate_pending_requests_()

void GSF_iterate_pending_requests_ ( GSF_PendingRequestIterator  it,
void *  cls 
)

Iterate over all pending requests.

Parameters
itfunction to call for each request
clsclosure for it

Definition at line 690 of file gnunet-service-fs_pr.c.

691 {
693  pr_map,
695  cls);
696 }
int GNUNET_CONTAINER_multihashmap_iterate(struct GNUNET_CONTAINER_MultiHashMap *map, GNUNET_CONTAINER_MulitHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map.
enum GNUNET_GenericReturnValue(* GNUNET_CONTAINER_MulitHashMapIteratorCallback)(void *cls, const struct GNUNET_HashCode *key, void *value)
Iterator over hash map entries.

References GNUNET_CONTAINER_multihashmap_iterate(), and pr_map.

Referenced by GSF_peer_connect_handler().

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◆ update_request_performance_data()

static void update_request_performance_data ( struct ProcessReplyClosure prq,
struct GSF_PendingRequest pr 
)
static

Update the performance data for the sender (if any) since the sender successfully answered one of our queries.

Parameters
prqinformation about the sender
prrequest that was satisfied

Definition at line 759 of file gnunet-service-fs_pr.c.

761 {
762  if (prq->sender == NULL)
763  return;
766  prq->priority);
767 }
void GSF_peer_update_performance_(struct GSF_ConnectedPeer *cp, struct GNUNET_TIME_Absolute request_time, uint32_t request_priority)
Report on receiving a reply; update the performance record of the given peer.
uint32_t priority
How much was this reply worth to us?
struct GSF_ConnectedPeer * sender
Who gave us this reply? NULL for local host (or DHT)

◆ process_reply()

static enum GNUNET_GenericReturnValue process_reply ( void *  cls,
const struct GNUNET_HashCode key,
void *  value 
)
static

We have received a reply; handle it!

Parameters
clsresponse (a struct ProcessReplyClosure)
keyour query
valuevalue in the hash map (info about the query)
Returns
GNUNET_YES (we should continue to iterate)

Definition at line 759 of file gnunet-service-fs_pr.c.

782 {
783  struct ProcessReplyClosure *prq = cls;
784  struct GSF_PendingRequest *pr = value;
785  struct GNUNET_HashCode chash;
787 
788  if (NULL == pr->rh)
789  return GNUNET_YES;
791  "Matched result (type %u) for query `%s' with pending request\n",
792  (unsigned int) prq->type,
793  GNUNET_h2s (key));
795  gettext_noop ("# replies received and matched"),
796  1,
797  GNUNET_NO);
799  prq->type,
800  pr->bg,
801  key,
802  NULL, 0,
803  prq->data,
804  prq->size);
805  switch (prq->eval)
806  {
809  break;
811  /* short cut: stop processing early, no BF-update, etc. */
816  .rel_value_us);
817  if (GNUNET_YES !=
819  .pr_head,
820  prq->sender,
823  /* pass on to other peers / local clients */
824  pr->rh (pr->rh_cls,
825  prq->eval,
826  pr,
827  prq->anonymity_level,
828  prq->expiration,
830  prq->type,
831  prq->data,
832  prq->size);
833  return GNUNET_YES;
835 #if INSANE_STATISTICS
837  "# duplicate replies discarded (bloomfilter)",
838  1,
839  GNUNET_NO);
840 #endif
842  "Duplicate response, discarding.\n");
843  return GNUNET_YES; /* duplicate */
846  "# irrelevant replies discarded",
847  1,
848  GNUNET_NO);
850  "Irrelevant response, ignoring.\n");
851  return GNUNET_YES;
853  GNUNET_break (0); /* bad installation? */
854  return GNUNET_NO;
855  }
856  /* update bloomfilter */
857  GNUNET_CRYPTO_hash (prq->data,
858  prq->size,
859  &chash);
861  &chash,
862  1);
863  if (NULL == prq->sender)
864  {
866  "Found result for query `%s' in local datastore\n",
867  GNUNET_h2s (key));
869  gettext_noop ("# results found locally"),
870  1,
871  GNUNET_NO);
872  }
873  else
874  {
875  GSF_dht_lookup_ (pr);
876  }
878  pr->public_data.priority = 0;
881  prq->request_found = GNUNET_YES;
882  /* finally, pass on to other peer / local client */
884  .pr_head,
885  prq->sender,
888  pr->rh (pr->rh_cls,
889  prq->eval,
890  pr,
891  prq->anonymity_level,
892  prq->expiration,
894  prq->type,
895  prq->data,
896  prq->size);
897  return GNUNET_YES;
898 }
struct GNUNET_LOAD_Value * GSF_rt_entry_lifetime
How long do requests typically stay in the routing table?
int GSF_request_plan_reference_get_last_transmission_(struct GSF_PendingRequestPlanBijection *pr_head, struct GSF_ConnectedPeer *sender, struct GNUNET_TIME_Absolute *result)
Get the last transmission attempt time for the request plan list referenced by pr_head,...
static void update_request_performance_data(struct ProcessReplyClosure *prq, struct GSF_PendingRequest *pr)
Update the performance data for the sender (if any) since the sender successfully answered one of our...
void GSF_dht_lookup_(struct GSF_PendingRequest *pr)
Consider looking up the data in the DHT (anonymity-level permitting).
void GSF_pending_request_update_(struct GSF_PendingRequest *pr, const struct GNUNET_HashCode *replies_seen, unsigned int replies_seen_count)
Update a given pending request with additional replies that have been seen.
enum GNUNET_BLOCK_ReplyEvaluationResult GNUNET_BLOCK_check_reply(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, struct GNUNET_BLOCK_Group *group, const struct GNUNET_HashCode *query, const void *xquery, size_t xquery_size, const void *reply_block, size_t reply_block_size)
Function called to validate if a reply is good for a particular query.
Definition: block.c:334
@ GNUNET_BLOCK_REPLY_OK_MORE
Valid result, and there may be more.
@ GNUNET_BLOCK_REPLY_OK_DUPLICATE
Valid result, but suppressed because it is a duplicate.
@ GNUNET_BLOCK_REPLY_OK_LAST
Last possible valid result.
@ GNUNET_BLOCK_REPLY_IRRELEVANT
Block does not match xquery (valid result, not relevant for the request)
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:41
void GNUNET_LOAD_update(struct GNUNET_LOAD_Value *load, uint64_t data)
Update the current load.
Definition: load.c:236
struct GNUNET_TIME_Relative GNUNET_TIME_absolute_get_duration(struct GNUNET_TIME_Absolute whence)
Get the duration of an operation as the difference of the current time and the given start time "henc...
Definition: time.c:435
static GNUNET_CronTime last_transmission
uint64_t rel_value_us
The actual value.
struct GSF_PendingRequestPlanBijection * pr_head
Fields for the plan module to track a DLL with the request.
unsigned int results_found
Number of results we have found for this request so far.
Closure for process_reply() function.
size_t size
Size of data.
struct GNUNET_TIME_Absolute expiration
When the reply expires.
enum GNUNET_BLOCK_ReplyEvaluationResult eval
Evaluation result (returned).
const void * data
The data for the reply.
int request_found
Did we find a matching request?
enum GNUNET_BLOCK_Type type
Type of the block.
uint32_t anonymity_level
Anonymity requirements for this reply.

References GSF_peer_update_performance_(), ProcessReplyClosure::priority, GSF_PendingRequest::public_data, ProcessReplyClosure::sender, and GSF_PendingRequestData::start_time.

Referenced by cadet_reply_proc(), handle_dht_reply(), handle_p2p_put(), and process_local_reply().

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◆ put_migration_continuation()

static void put_migration_continuation ( void *  cls,
int  success,
struct GNUNET_TIME_Absolute  min_expiration,
const char *  msg 
)
static

Continuation called to notify client about result of the operation.

Parameters
clsclosure
successGNUNET_SYSERR on failure
min_expirationminimum expiration time required for content to be stored
msgNULL on success, otherwise an error message

Definition at line 934 of file gnunet-service-fs_pr.c.

938 {
939  struct PutMigrationContext *pmc = cls;
940  struct GSF_ConnectedPeer *cp;
941  struct GNUNET_TIME_Relative mig_pause;
942  struct GSF_PeerPerformanceData *ppd;
943 
944  if (NULL != datastore_put_load)
945  {
946  if (GNUNET_SYSERR != success)
947  {
950  .rel_value_us);
951  }
952  else
953  {
954  /* on queue failure / timeout, increase the put load dramatically */
956  GNUNET_TIME_UNIT_MINUTES.rel_value_us);
957  }
958  }
959  cp = GSF_peer_get_ (&pmc->origin);
960  if (GNUNET_OK == success)
961  {
962  if (NULL != cp)
963  {
965  ppd->migration_delay.rel_value_us /= 2;
966  }
967  GNUNET_free (pmc);
968  return;
969  }
970  if ((GNUNET_NO == success) && (GNUNET_NO == pmc->requested) && (NULL != cp))
971  {
974  {
976  "Asking to stop migration for %s because datastore is full\n",
979  GNUNET_YES));
981  }
982  else
983  {
985  ppd->migration_delay);
986  ppd->migration_delay =
988  mig_pause.rel_value_us =
991  ppd->migration_delay =
993  GNUNET_log (
995  "Replicated content already exists locally, asking to stop migration for %s\n",
999  }
1000  }
1001  GNUNET_free (pmc);
1003  gettext_noop ("# Datastore `PUT' failures"),
1004  1,
1005  GNUNET_NO);
1006 }
static struct GNUNET_TIME_Absolute min_expiration
Minimum time that content should have to not be discarded instantly (time stamp of any content that w...
struct GSF_ConnectedPeer * GSF_peer_get_(const struct GNUNET_PeerIdentity *peer)
Get a handle for a connected peer.
void GSF_block_peer_migration_(struct GSF_ConnectedPeer *cp, struct GNUNET_TIME_Absolute block_time)
Ask a peer to stop migrating data to us until the given point in time.
struct GSF_PeerPerformanceData * GSF_get_peer_performance_data_(struct GSF_ConnectedPeer *cp)
Return the performance data record for the given peer.
static struct GNUNET_LOAD_Value * datastore_put_load
Datastore 'PUT' load tracking.
uint64_t GNUNET_CRYPTO_random_u64(enum GNUNET_CRYPTO_Quality mode, uint64_t max)
Generate a random unsigned 64-bit value.
@ GNUNET_SYSERR
Definition: gnunet_common.h:97
struct GNUNET_TIME_Relative GNUNET_TIME_relative_min(struct GNUNET_TIME_Relative t1, struct GNUNET_TIME_Relative t2)
Return the minimum of two relative time values.
Definition: time.c:342
struct GNUNET_TIME_Relative GNUNET_TIME_relative_saturating_multiply(struct GNUNET_TIME_Relative rel, unsigned long long factor)
Saturating multiply relative time by a given factor.
Definition: time.c:530
struct GNUNET_TIME_Relative GNUNET_TIME_relative_max(struct GNUNET_TIME_Relative t1, struct GNUNET_TIME_Relative t2)
Return the maximum of two relative time values.
Definition: time.c:350
#define GNUNET_TIME_UNIT_HOURS
One hour.
struct GNUNET_TIME_Relative GNUNET_TIME_absolute_get_remaining(struct GNUNET_TIME_Absolute future)
Given a timestamp in the future, how much time remains until then?
Definition: time.c:404
#define GNUNET_TIME_UNIT_MINUTES
One minute.
const char * GNUNET_STRINGS_relative_time_to_string(struct GNUNET_TIME_Relative delta, int do_round)
Give relative time in human-readable fancy format.
Definition: strings.c:570
Time for relative time used by GNUnet, in microseconds.
A connected peer.
Performance data kept for a peer.
struct GNUNET_TIME_Relative migration_delay
If we get content we already have from this peer, for how long do we block it? Adjusted based on the ...
Context for put_migration_continuation().
struct GNUNET_PeerIdentity origin
Request origin.
struct GNUNET_TIME_Absolute start
Start time for the operation.
int requested
GNUNET_YES if we had a matching request for this block, GNUNET_NO if not.

References GNUNET_TIME_Absolute::abs_value_us, datastore_put_load, gettext_noop, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u64(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_LOAD_update(), GNUNET_log, GNUNET_NO, GNUNET_OK, GNUNET_STATISTICS_update(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_SYSERR, GNUNET_TIME_absolute_get_duration(), GNUNET_TIME_absolute_get_remaining(), GNUNET_TIME_relative_max(), GNUNET_TIME_relative_min(), GNUNET_TIME_relative_saturating_multiply(), GNUNET_TIME_relative_to_absolute(), GNUNET_TIME_UNIT_HOURS, GNUNET_TIME_UNIT_MINUTES, GNUNET_TIME_UNIT_SECONDS, GNUNET_YES, GSF_block_peer_migration_(), GSF_get_peer_performance_data_(), GSF_peer_get_(), GSF_stats, GSF_PeerPerformanceData::migration_delay, min_expiration, PutMigrationContext::origin, GNUNET_TIME_Relative::rel_value_us, PutMigrationContext::requested, and PutMigrationContext::start.

Referenced by handle_dht_reply(), and handle_p2p_put().

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◆ test_put_load_too_high()

static int test_put_load_too_high ( uint32_t  priority)
static

Test if the DATABASE (PUT) load on this peer is too high to even consider processing the query at all.

Parameters
prioritythe priority of the item
Returns
GNUNET_YES if the load is too high to do anything (load high) GNUNET_NO to process normally (load normal or low)

Definition at line 1019 of file gnunet-service-fs_pr.c.

1020 {
1021  double ld;
1022 
1023  if (NULL == datastore_put_load)
1024  return GNUNET_NO;
1026  return GNUNET_NO; /* very fast */
1028  if (ld < 2.0 * (1 + priority))
1029  return GNUNET_NO;
1031  gettext_noop (
1032  "# storage requests dropped due to high load"),
1033  1,
1034  GNUNET_NO);
1035  return GNUNET_YES;
1036 }
double GNUNET_LOAD_get_average(struct GNUNET_LOAD_Value *load)
Get the average value given to update so far.
Definition: load.c:215
double GNUNET_LOAD_get_load(struct GNUNET_LOAD_Value *load)
Get the current load.
Definition: load.c:200

References datastore_put_load, gettext_noop, GNUNET_LOAD_get_average(), GNUNET_LOAD_get_load(), GNUNET_NO, GNUNET_STATISTICS_update(), GNUNET_YES, and GSF_stats.

Referenced by handle_dht_reply(), and handle_p2p_put().

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◆ handle_dht_reply()

static void handle_dht_reply ( void *  cls,
struct GNUNET_TIME_Absolute  exp,
const struct GNUNET_HashCode key,
const struct GNUNET_PeerIdentity trunc_peer,
const struct GNUNET_DHT_PathElement get_path,
unsigned int  get_path_length,
const struct GNUNET_DHT_PathElement put_path,
unsigned int  put_path_length,
enum GNUNET_BLOCK_Type  type,
size_t  size,
const void *  data 
)
static

Iterator called on each result obtained for a DHT operation that expects a reply.

Parameters
clsclosure
expwhen will this value expire
keykey of the result
trunc_peertruncated peer, NULL for none
get_pathpeers on reply path (or NULL if not recorded)
get_path_lengthnumber of entries in get_path
put_pathpeers on the PUT path (or NULL if not recorded)
put_path_lengthnumber of entries in get_path
typetype of the result
sizenumber of bytes in data
datapointer to the result data

Definition at line 1056 of file gnunet-service-fs_pr.c.

1067 {
1068  struct GSF_PendingRequest *pr = cls;
1069  struct ProcessReplyClosure prq;
1070  struct PutMigrationContext *pmc;
1071 
1073  gettext_noop ("# Replies received from DHT"),
1074  1,
1075  GNUNET_NO);
1076  memset (&prq, 0, sizeof(prq));
1077  prq.data = data;
1078  prq.expiration = exp;
1079  /* do not allow migrated content to live longer than 1 year */
1082  prq.expiration);
1083  prq.size = size;
1084  prq.type = type;
1085  process_reply (&prq,
1086  key,
1087  pr);
1088  if ((GNUNET_YES == active_to_migration) &&
1089  (GNUNET_NO == test_put_load_too_high (prq.priority)))
1090  {
1092  "Replicating result for query `%s' with priority %u\n",
1093  GNUNET_h2s (key),
1094  prq.priority);
1095  pmc = GNUNET_new (struct PutMigrationContext);
1096  pmc->start = GNUNET_TIME_absolute_get ();
1097  pmc->requested = GNUNET_YES;
1098  if (NULL == GNUNET_DATASTORE_put (GSF_dsh,
1099  0,
1100  key,
1101  size,
1102  data,
1103  type,
1104  prq.priority,
1105  1 /* anonymity */,
1106  0 /* replication */,
1107  exp,
1108  1 + prq.priority,
1111  pmc))
1112  {
1114  GNUNET_SYSERR,
1116  NULL);
1117  }
1118  }
1119 }
uint32_t data
The data value.
struct GNUNET_DATASTORE_Handle * GSF_dsh
Our connection to the datastore.
static void put_migration_continuation(void *cls, int success, struct GNUNET_TIME_Absolute min_expiration, const char *msg)
Continuation called to notify client about result of the operation.
#define MAX_DATASTORE_QUEUE
Maximum size of the datastore queue for P2P operations.
static int active_to_migration
Are we allowed to migrate content to this peer.
static int test_put_load_too_high(uint32_t priority)
Test if the DATABASE (PUT) load on this peer is too high to even consider processing the query at all...
static enum GNUNET_GenericReturnValue process_reply(void *cls, const struct GNUNET_HashCode *key, void *value)
We have received a reply; handle it!
struct GNUNET_DATASTORE_QueueEntry * GNUNET_DATASTORE_put(struct GNUNET_DATASTORE_Handle *h, uint32_t rid, const struct GNUNET_HashCode *key, size_t size, const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority, uint32_t anonymity, uint32_t replication, struct GNUNET_TIME_Absolute expiration, unsigned int queue_priority, unsigned int max_queue_size, GNUNET_DATASTORE_ContinuationWithStatus cont, void *cont_cls)
Store an item in the datastore.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_min(struct GNUNET_TIME_Absolute t1, struct GNUNET_TIME_Absolute t2)
Return the minimum of two absolute time values.
Definition: time.c:358
#define GNUNET_TIME_UNIT_ZERO_ABS
Absolute time zero.
#define GNUNET_TIME_UNIT_YEARS
One year (365 days).
static unsigned int size
Size of the "table".
Definition: peer.c:67

References active_to_migration, ProcessReplyClosure::data, data, ProcessReplyClosure::expiration, gettext_noop, GNUNET_DATASTORE_put(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_h2s(), GNUNET_log, GNUNET_new, GNUNET_NO, GNUNET_STATISTICS_update(), GNUNET_SYSERR, GNUNET_TIME_absolute_get(), GNUNET_TIME_absolute_min(), GNUNET_TIME_relative_to_absolute(), GNUNET_TIME_UNIT_YEARS, GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_YES, GSF_dsh, GSF_stats, key, MAX_DATASTORE_QUEUE, ProcessReplyClosure::priority, process_reply(), put_migration_continuation(), PutMigrationContext::requested, ProcessReplyClosure::size, size, PutMigrationContext::start, test_put_load_too_high(), ProcessReplyClosure::type, and type.

Referenced by GSF_dht_lookup_().

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◆ GSF_dht_lookup_()

void GSF_dht_lookup_ ( struct GSF_PendingRequest pr)

Consider looking up the data in the DHT (anonymity-level permitting).

Parameters
prthe pending request to process

Definition at line 1128 of file gnunet-service-fs_pr.c.

1129 {
1130  const void *xquery;
1131  size_t xquery_size;
1132  struct GNUNET_PeerIdentity pi;
1133  char buf[sizeof(struct GNUNET_HashCode) * 2] GNUNET_ALIGN;
1134 
1135  if (0 != pr->public_data.anonymity_level)
1136  return;
1137  if (NULL != pr->gh)
1138  {
1139  GNUNET_DHT_get_stop (pr->gh);
1140  pr->gh = NULL;
1141  }
1142  xquery = NULL;
1143  xquery_size = 0;
1144  if (0 != (pr->public_data.options & GSF_PRO_FORWARD_ONLY))
1145  {
1146  GNUNET_assert (0 != pr->sender_pid);
1148  GNUNET_memcpy (&buf[xquery_size], &pi, sizeof(struct GNUNET_PeerIdentity));
1149  xquery_size += sizeof(struct GNUNET_PeerIdentity);
1150  }
1152  pr->public_data.type,
1153  &pr->public_data.query,
1156  xquery,
1157  xquery_size,
1159  pr);
1160  if ((NULL != pr->gh) && (0 != pr->replies_seen_count))
1162  pr->replies_seen_count,
1163  pr->replies_seen);
1164 }
static struct GNUNET_PEERINFO_Handle * pi
Handle to peerinfo service.
struct GNUNET_DHT_Handle * GSF_dht
Handle for DHT operations.
static void handle_dht_reply(void *cls, struct GNUNET_TIME_Absolute exp, const struct GNUNET_HashCode *key, const struct GNUNET_PeerIdentity *trunc_peer, const struct GNUNET_DHT_PathElement *get_path, unsigned int get_path_length, const struct GNUNET_DHT_PathElement *put_path, unsigned int put_path_length, enum GNUNET_BLOCK_Type type, size_t size, const void *data)
Iterator called on each result obtained for a DHT operation that expects a reply.
#define DHT_GET_REPLICATION
Desired replication level for GETs.
static char buf[2048]
struct GNUNET_DHT_GetHandle * GNUNET_DHT_get_start(struct GNUNET_DHT_Handle *handle, enum GNUNET_BLOCK_Type type, const struct GNUNET_HashCode *key, uint32_t desired_replication_level, enum GNUNET_DHT_RouteOption options, const void *xquery, size_t xquery_size, GNUNET_DHT_GetIterator iter, void *iter_cls)
Perform an asynchronous GET operation on the DHT identified.
Definition: dht_api.c:1164
@ GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE
Each peer along the way should process the request (otherwise only peers locally closest to the key w...
#define GNUNET_ALIGN
gcc-ism to force alignment; we use this to align char-arrays that may then be cast to 'struct's.

References GSF_PendingRequestData::anonymity_level, buf, DHT_GET_REPLICATION, GSF_PendingRequest::gh, GNUNET_ALIGN, GNUNET_assert, GNUNET_DHT_get_filter_known_results(), GNUNET_DHT_get_start(), GNUNET_DHT_get_stop(), GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE, GNUNET_memcpy, GNUNET_PEER_resolve(), GSF_dht, GSF_PRO_FORWARD_ONLY, handle_dht_reply(), GSF_PendingRequestData::options, pi, GSF_PendingRequest::public_data, GSF_PendingRequestData::query, GSF_PendingRequest::replies_seen, GSF_PendingRequest::replies_seen_count, GSF_PendingRequest::sender_pid, and GSF_PendingRequestData::type.

Referenced by start_p2p_processing().

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◆ cadet_reply_proc()

static void cadet_reply_proc ( void *  cls,
enum GNUNET_BLOCK_Type  type,
struct GNUNET_TIME_Absolute  expiration,
size_t  data_size,
const void *  data 
)
static

Function called with a reply from the cadet.

Parameters
clsthe pending request struct
typetype of the block, ANY on error
expirationexpiration time for the block
data_sizenumber of bytes in data, 0 on error
datareply block data, NULL on error

Definition at line 1177 of file gnunet-service-fs_pr.c.

1182 {
1183  struct GSF_PendingRequest *pr = cls;
1184  struct ProcessReplyClosure prq;
1185  struct GNUNET_HashCode query;
1186 
1187  pr->cadet_request = NULL;
1188  if (GNUNET_OK !=
1190  type,
1191  data,
1192  data_size))
1193  {
1194  GNUNET_break_op (0);
1195  return;
1196  }
1197  if (GNUNET_BLOCK_TYPE_ANY == type)
1198  {
1199  GNUNET_break (NULL == data);
1200  GNUNET_break (0 == data_size);
1201  pr->cadet_retry_count++;
1203  return; /* give up on cadet */
1204  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Error retrieiving block via cadet\n");
1205  /* retry -- without delay, as this is non-anonymous
1206  and cadet/cadet connect will take some time anyway */
1208  &pr->public_data.query,
1209  pr->public_data.type,
1211  pr);
1212  return;
1213  }
1214  if (GNUNET_YES !=
1216  type,
1217  data,
1218  data_size,
1219  &query))
1220  {
1222  "Failed to derive key for block of type %d\n",
1223  (int) type);
1224  GNUNET_break_op (0);
1225  return;
1226  }
1228  gettext_noop ("# Replies received from CADET"),
1229  1,
1230  GNUNET_NO);
1231  memset (&prq, 0, sizeof(prq));
1232  prq.data = data;
1233  prq.expiration = expiration;
1234  /* do not allow migrated content to live longer than 1 year */
1237  prq.expiration);
1238  prq.size = data_size;
1239  prq.type = type;
1240  process_reply (&prq,
1241  &query,
1242  pr);
1243 }
static char * expiration
Credential TTL.
Definition: gnunet-abd.c:96
static size_t data_size
Number of bytes in data.
Definition: gnunet-abd.c:187
struct GSF_CadetRequest * GSF_cadet_query(const struct GNUNET_PeerIdentity *target, const struct GNUNET_HashCode *query, enum GNUNET_BLOCK_Type type, GSF_CadetReplyProcessor proc, void *proc_cls)
Look for a block by directly contacting a particular peer.
static void cadet_reply_proc(void *cls, enum GNUNET_BLOCK_Type type, struct GNUNET_TIME_Absolute expiration, size_t data_size, const void *data)
Function called with a reply from the cadet.
enum GNUNET_GenericReturnValue GNUNET_BLOCK_check_block(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, const void *block, size_t block_size)
Function called to validate a block.
Definition: block.c:316
enum GNUNET_GenericReturnValue GNUNET_BLOCK_get_key(struct GNUNET_BLOCK_Context *ctx, enum GNUNET_BLOCK_Type type, const void *block, size_t block_size, struct GNUNET_HashCode *key)
Function called to obtain the key for a block.
Definition: block.c:276
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.

References GSF_PendingRequest::cadet_request, GSF_PendingRequest::cadet_retry_count, CADET_RETRY_MAX, ProcessReplyClosure::data, data, data_size, expiration, ProcessReplyClosure::expiration, gettext_noop, GNUNET_BLOCK_check_block(), GNUNET_BLOCK_get_key(), GNUNET_BLOCK_TYPE_ANY, GNUNET_break, GNUNET_break_op, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_NO, GNUNET_OK, GNUNET_STATISTICS_update(), GNUNET_TIME_absolute_min(), GNUNET_TIME_relative_to_absolute(), GNUNET_TIME_UNIT_YEARS, GNUNET_YES, GSF_block_ctx, GSF_cadet_query(), GSF_stats, process_reply(), GSF_PendingRequest::public_data, GSF_PendingRequestData::query, ProcessReplyClosure::size, GSF_PendingRequestData::target, ProcessReplyClosure::type, GSF_PendingRequestData::type, and type.

Referenced by GSF_cadet_lookup_().

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◆ GSF_cadet_lookup_()

void GSF_cadet_lookup_ ( struct GSF_PendingRequest pr)

Consider downloading via cadet (if possible)

Parameters
prthe pending request to process

Definition at line 1252 of file gnunet-service-fs_pr.c.

1253 {
1254  if (0 != pr->public_data.anonymity_level)
1255  return;
1256  if (0 == pr->public_data.target)
1257  {
1259  "Cannot do cadet-based download, target peer not known\n");
1260  return;
1261  }
1262  if (NULL != pr->cadet_request)
1263  return;
1265  &pr->public_data.query,
1266  pr->public_data.type,
1268  pr);
1269 }

References GSF_PendingRequestData::anonymity_level, cadet_reply_proc(), GSF_PendingRequest::cadet_request, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GSF_cadet_query(), GSF_PendingRequest::public_data, GSF_PendingRequestData::query, GSF_PendingRequestData::target, and GSF_PendingRequestData::type.

Referenced by start_p2p_processing().

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◆ warn_delay_task()

static void warn_delay_task ( void *  cls)
static

Task that issues a warning if the datastore lookup takes too long.

Parameters
clsthe struct GSF_PendingRequest

Definition at line 1278 of file gnunet-service-fs_pr.c.

1279 {
1280  struct GSF_PendingRequest *pr = cls;
1281 
1283  _ ("Datastore lookup already took %s!\n"),
1286  GNUNET_YES));
1288  &warn_delay_task,
1289  pr);
1290 }
static void warn_delay_task(void *cls)
Task that issues a warning if the datastore lookup takes too long.
@ GNUNET_ERROR_TYPE_WARNING
@ GNUNET_ERROR_TYPE_BULK
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1254
#define _(String)
GNU gettext support macro.
Definition: platform.h:177
struct GNUNET_TIME_Absolute qe_start
Time we started the last datastore lookup.

References _, GNUNET_ERROR_TYPE_BULK, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_SCHEDULER_add_delayed(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_TIME_absolute_get_duration(), GNUNET_TIME_UNIT_MINUTES, GNUNET_YES, GSF_PendingRequest::qe_start, and GSF_PendingRequest::warn_task.

Referenced by start_local_query().

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◆ odc_warn_delay_task()

static void odc_warn_delay_task ( void *  cls)
static

Task that issues a warning if the datastore lookup takes too long.

Parameters
clsthe struct GSF_PendingRequest

Definition at line 1299 of file gnunet-service-fs_pr.c.

1300 {
1301  struct GSF_PendingRequest *pr = cls;
1302 
1304  _ ("On-demand lookup already took %s!\n"),
1307  GNUNET_YES));
1310  pr);
1311 }
static void odc_warn_delay_task(void *cls)
Task that issues a warning if the datastore lookup takes too long.

References _, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_SCHEDULER_add_delayed(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_TIME_absolute_get_duration(), GNUNET_TIME_UNIT_MINUTES, GNUNET_YES, GSF_PendingRequest::qe_start, and GSF_PendingRequest::warn_task.

Referenced by process_local_reply().

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◆ call_continuation()

static void call_continuation ( struct GSF_PendingRequest pr)
static

Definition at line 1316 of file gnunet-service-fs_pr.c.

1317 {
1319 
1320  GNUNET_assert (NULL == pr->qe);
1321  if (NULL != pr->warn_task)
1322  {
1324  pr->warn_task = NULL;
1325  }
1326  if (NULL == cont)
1327  return; /* no continuation */
1328  pr->llc_cont = NULL;
1329  if (0 != (GSF_PRO_LOCAL_ONLY & pr->public_data.options))
1330  {
1332  {
1333  /* Signal that we are done and that there won't be any
1334  additional results to allow client to clean up state. */
1335  pr->rh (pr->rh_cls,
1337  pr,
1338  UINT32_MAX,
1342  NULL,
1343  0);
1344  }
1345  /* Finally, call our continuation to signal that we are
1346  done with local processing of this request; i.e. to
1347  start reading again from the client. */
1348  cont (pr->llc_cont_cls,
1349  NULL,
1351  return;
1352  }
1353 
1354  cont (pr->llc_cont_cls,
1355  pr,
1356  pr->local_result);
1357 }
@ GSF_PRO_LOCAL_ONLY
Request must only be processed locally.

References GNUNET_assert, GNUNET_BLOCK_REPLY_OK_LAST, GNUNET_BLOCK_TYPE_ANY, GNUNET_SCHEDULER_cancel(), GNUNET_TIME_UNIT_FOREVER_ABS, GNUNET_TIME_UNIT_ZERO_ABS, GSF_PRO_LOCAL_ONLY, GSF_PendingRequest::llc_cont, GSF_PendingRequest::llc_cont_cls, GSF_PendingRequest::local_result, GSF_PendingRequestData::options, GSF_PendingRequest::public_data, GSF_PendingRequest::qe, GSF_PendingRequest::rh, GSF_PendingRequest::rh_cls, and GSF_PendingRequest::warn_task.

Referenced by no_more_local_results(), process_local_reply(), and start_local_query().

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◆ no_more_local_results()

static void no_more_local_results ( struct GSF_PendingRequest pr)
static

Definition at line 1362 of file gnunet-service-fs_pr.c.

1363 {
1365  "No further local responses available.\n");
1366 #if INSANE_STATISTICS
1370  gettext_noop (
1371  "# requested DBLOCK or IBLOCK not found"),
1372  1,
1373  GNUNET_NO);
1374 #endif
1375  call_continuation (pr);
1376 }
static void call_continuation(struct GSF_PendingRequest *pr)
@ GNUNET_BLOCK_TYPE_FS_DBLOCK
Data block (leaf) in the CHK tree.
@ GNUNET_BLOCK_TYPE_FS_IBLOCK
Inner block in the CHK tree.

References call_continuation(), gettext_noop, GNUNET_BLOCK_TYPE_FS_DBLOCK, GNUNET_BLOCK_TYPE_FS_IBLOCK, GNUNET_ERROR_TYPE_BULK, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_NO, GNUNET_STATISTICS_update(), GSF_stats, GSF_PendingRequest::public_data, and GSF_PendingRequestData::type.

Referenced by process_local_reply().

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◆ process_local_reply()

static void process_local_reply ( void *  cls,
const struct GNUNET_HashCode key,
size_t  size,
const void *  data,
enum GNUNET_BLOCK_Type  type,
uint32_t  priority,
uint32_t  anonymity,
uint32_t  replication,
struct GNUNET_TIME_Absolute  expiration,
uint64_t  uid 
)
static

We're processing (local) results for a search request from another peer.

Pass applicable results to the peer and if we are done either clean up (operation complete) or forward to other peers (more results possible).

Parameters
clsour closure (struct GSF_PendingRequest *)
keykey for the content
sizenumber of bytes in data
datacontent stored
typetype of the content
prioritypriority of the content
anonymityanonymity-level for the content
replicationreplication-level for the content
expirationexpiration time for the content
uidunique identifier for the datum; maybe 0 if no unique identifier is available

Definition at line 1459 of file gnunet-service-fs_pr.c.

1469 {
1470  struct GSF_PendingRequest *pr = cls;
1471  struct ProcessReplyClosure prq;
1472  struct GNUNET_HashCode query;
1473  unsigned int old_rf;
1474 
1476  pr->warn_task = NULL;
1477  if (NULL == pr->qe)
1478  goto called_from_on_demand;
1479  pr->qe = NULL;
1480  if (
1481  (NULL == key) && pr->seen_null &&
1482  ! pr->have_first_uid) /* We have hit the end for the 2nd time with no results */
1483  {
1484  /* No results */
1485 #if INSANE_STATISTICS
1487  gettext_noop (
1488  "# Datastore lookups concluded (no results)"),
1489  1,
1490  GNUNET_NO);
1491 #endif
1492  no_more_local_results (pr);
1493  return;
1494  }
1495  if (((NULL == key) &&
1496  pr->seen_null) || /* We have hit the end for the 2nd time OR */
1497  (pr->seen_null && pr->have_first_uid &&
1498  (uid >= pr->first_uid))) /* We have hit the end and past first UID */
1499  {
1500  /* Seen all results */
1502  gettext_noop (
1503  "# Datastore lookups concluded (seen all)"),
1504  1,
1505  GNUNET_NO);
1506  no_more_local_results (pr);
1507  return;
1508  }
1509  if (NULL == key)
1510  {
1511  GNUNET_assert (! pr->seen_null);
1512  pr->seen_null = true;
1513  start_local_query (pr, 0 /* next_uid */, false /* random */);
1514  return;
1515  }
1516  if (! pr->have_first_uid)
1517  {
1518  pr->first_uid = uid;
1519  pr->have_first_uid = true;
1520  }
1521  pr->result_count++;
1522  if (pr->result_count > MAX_RESULTS)
1523  {
1525  GSF_stats,
1526  gettext_noop ("# Datastore lookups aborted (more than MAX_RESULTS)"),
1527  1,
1528  GNUNET_NO);
1529  no_more_local_results (pr);
1530  return;
1531  }
1533  "Received reply for `%s' of type %d with UID %llu from datastore.\n",
1534  GNUNET_h2s (key),
1535  type,
1536  (unsigned long long) uid);
1538  {
1540  "Found ONDEMAND block, performing on-demand encoding\n");
1542  gettext_noop (
1543  "# on-demand blocks matched requests"),
1544  1,
1545  GNUNET_NO);
1549  pr);
1551  size,
1552  data,
1553  type,
1554  priority,
1555  anonymity,
1556  replication,
1557  expiration,
1558  uid,
1560  pr))
1561  {
1563  gettext_noop (
1564  "# on-demand lookups performed successfully"),
1565  1,
1566  GNUNET_NO);
1567  return; /* we're done */
1568  }
1570  gettext_noop ("# on-demand lookups failed"),
1571  1,
1572  GNUNET_NO);
1574  start_local_query (pr, uid + 1 /* next_uid */, false /* random */);
1575  return;
1576  }
1577 called_from_on_demand:
1578  old_rf = pr->public_data.results_found;
1579  memset (&prq, 0, sizeof(prq));
1580  prq.data = data;
1581  prq.expiration = expiration;
1582  prq.size = size;
1583  if (GNUNET_OK !=
1585  type,
1586  data,
1587  size,
1588  &query))
1589  {
1590  GNUNET_break (0);
1592  key,
1593  size,
1594  data,
1595  UINT_MAX,
1596  UINT_MAX,
1597  NULL,
1598  NULL);
1599  start_local_query (pr, uid + 1 /* next_uid */, false /* random */);
1600  return;
1601  }
1602  prq.type = type;
1603  prq.priority = priority;
1604  prq.request_found = GNUNET_NO;
1605  prq.anonymity_level = anonymity;
1606  if ((0 == old_rf) && (0 == pr->public_data.results_found))
1608  process_reply (&prq,
1609  key,
1610  pr);
1611  pr->local_result = prq.eval;
1612  if (GNUNET_BLOCK_REPLY_OK_LAST == prq.eval)
1613  {
1615  GSF_stats,
1616  gettext_noop ("# Datastore lookups concluded (found last result)"),
1617  1,
1618  GNUNET_NO);
1619  call_continuation (pr);
1620  return;
1621  }
1622  if ((0 == (GSF_PRO_PRIORITY_UNLIMITED & pr->public_data.options)) &&
1624  (pr->public_data.results_found > 5 + 2 * pr->public_data.priority)))
1625  {
1626  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Load too high, done with request\n");
1628  gettext_noop (
1629  "# Datastore lookups concluded (load too high)"),
1630  1,
1631  GNUNET_NO);
1632  call_continuation (pr);
1633  return;
1634  }
1635  start_local_query (pr, uid + 1 /* next_uid */, false /* random */);
1636 }
static unsigned int replication
static unsigned int anonymity
void GSF_update_datastore_delay_(struct GNUNET_TIME_Absolute start)
We've just now completed a datastore request.
int GSF_test_get_load_too_high_(uint32_t priority)
Test if the DATABASE (GET) load on this peer is too high to even consider processing the query at all...
int GNUNET_FS_handle_on_demand_block(const struct GNUNET_HashCode *key, uint32_t size, const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority, uint32_t anonymity, uint32_t replication, struct GNUNET_TIME_Absolute expiration, uint64_t uid, GNUNET_DATASTORE_DatumProcessor cont, void *cont_cls)
We've received an on-demand encoded block from the datastore.
#define MAX_RESULTS
Hard limit on the number of results we may get from the datastore per query.
static void no_more_local_results(struct GSF_PendingRequest *pr)
static void process_local_reply(void *cls, const struct GNUNET_HashCode *key, size_t size, const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority, uint32_t anonymity, uint32_t replication, struct GNUNET_TIME_Absolute expiration, uint64_t uid)
We're processing (local) results for a search request from another peer.
static void start_local_query(struct GSF_PendingRequest *pr, uint64_t next_uid, bool random)
@ GSF_PRO_PRIORITY_UNLIMITED
Request priority is allowed to be exceeded.
@ GNUNET_BLOCK_TYPE_FS_ONDEMAND
Type of a block representing a block to be encoded on demand from disk.
struct GNUNET_DATASTORE_QueueEntry * GNUNET_DATASTORE_remove(struct GNUNET_DATASTORE_Handle *h, const struct GNUNET_HashCode *key, size_t size, const void *data, unsigned int queue_priority, unsigned int max_queue_size, GNUNET_DATASTORE_ContinuationWithStatus cont, void *cont_cls)
Explicitly remove some content from the database.
size_t result_count
Result count.
uint64_t first_uid
Unique ID of the first result from the local datastore; used to terminate the loop.
bool seen_null
Have we seen a NULL result yet?
bool have_first_uid
Do we have a first UID yet?

References anonymity, ProcessReplyClosure::anonymity_level, call_continuation(), ProcessReplyClosure::data, data, ProcessReplyClosure::eval, expiration, ProcessReplyClosure::expiration, GSF_PendingRequest::first_uid, gettext_noop, GNUNET_assert, GNUNET_BLOCK_get_key(), GNUNET_BLOCK_REPLY_OK_LAST, GNUNET_BLOCK_TYPE_FS_ONDEMAND, GNUNET_break, GNUNET_DATASTORE_remove(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_FS_handle_on_demand_block(), GNUNET_h2s(), GNUNET_log, GNUNET_NO, GNUNET_OK, GNUNET_SCHEDULER_add_delayed(), GNUNET_SCHEDULER_cancel(), GNUNET_STATISTICS_update(), GNUNET_TIME_absolute_get(), GNUNET_TIME_UNIT_MINUTES, GNUNET_YES, GSF_block_ctx, GSF_dsh, GSF_PRO_PRIORITY_UNLIMITED, GSF_stats, GSF_test_get_load_too_high_(), GSF_update_datastore_delay_(), GSF_PendingRequest::have_first_uid, key, GSF_PendingRequest::local_result, MAX_RESULTS, no_more_local_results(), odc_warn_delay_task(), GSF_PendingRequestData::options, ProcessReplyClosure::priority, GSF_PendingRequestData::priority, process_reply(), GSF_PendingRequest::public_data, GSF_PendingRequest::qe, GSF_PendingRequest::qe_start, replication, ProcessReplyClosure::request_found, GSF_PendingRequest::result_count, GSF_PendingRequestData::results_found, GSF_PendingRequest::seen_null, ProcessReplyClosure::size, size, start_local_query(), GSF_PendingRequestData::start_time, ProcessReplyClosure::type, type, and GSF_PendingRequest::warn_task.

Referenced by start_local_query().

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◆ start_local_query()

static void start_local_query ( struct GSF_PendingRequest pr,
uint64_t  next_uid,
bool  random 
)
static

Definition at line 1395 of file gnunet-service-fs_pr.c.

1398 {
1401  &warn_delay_task,
1402  pr);
1404  next_uid,
1405  random,
1406  &pr->public_data.query,
1407  pr->public_data.type ==
1410  : pr->public_data.type,
1412  & pr->public_data.options))
1413  ? UINT_MAX
1414  : 1
1415  /* queue priority */,
1417  & pr->public_data.options))
1418  ? UINT_MAX
1420  /* max queue size */,
1422  pr);
1423  if (NULL != pr->qe)
1424  return;
1425  GNUNET_log (
1427  "ERROR Requesting `%s' of type %d with next_uid %llu from datastore.\n",
1428  GNUNET_h2s (&pr->public_data.query),
1429  pr->public_data.type,
1430  (unsigned long long) next_uid);
1432  gettext_noop (
1433  "# Datastore lookups concluded (error queueing)"),
1434  1,
1435  GNUNET_NO);
1436  call_continuation (pr);
1437 }
unsigned int GSF_datastore_queue_size
Size of the datastore queue we assume for common requests.
struct GNUNET_DATASTORE_QueueEntry * GNUNET_DATASTORE_get_key(struct GNUNET_DATASTORE_Handle *h, uint64_t next_uid, bool random, const struct GNUNET_HashCode *key, enum GNUNET_BLOCK_Type type, unsigned int queue_priority, unsigned int max_queue_size, GNUNET_DATASTORE_DatumProcessor proc, void *proc_cls)
Get a result for a particular key from the datastore.

References call_continuation(), gettext_noop, GNUNET_BLOCK_TYPE_ANY, GNUNET_BLOCK_TYPE_FS_DBLOCK, GNUNET_DATASTORE_get_key(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_h2s(), GNUNET_log, GNUNET_NO, GNUNET_SCHEDULER_add_delayed(), GNUNET_STATISTICS_update(), GNUNET_TIME_absolute_get(), GNUNET_TIME_UNIT_MINUTES, GSF_datastore_queue_size, GSF_dsh, GSF_PRO_PRIORITY_UNLIMITED, GSF_stats, GSF_PendingRequestData::options, process_local_reply(), GSF_PendingRequest::public_data, GSF_PendingRequest::qe, GSF_PendingRequest::qe_start, GSF_PendingRequestData::query, GSF_PendingRequestData::type, warn_delay_task(), and GSF_PendingRequest::warn_task.

Referenced by GSF_local_lookup_(), and process_local_reply().

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◆ GSF_pending_request_test_target_()

int GSF_pending_request_test_target_ ( struct GSF_PendingRequest pr,
const struct GNUNET_PeerIdentity target 
)

Is the given target a legitimate peer for forwarding the given request?

Parameters
prrequest
target
Returns
GNUNET_YES if this request could be forwarded to the given peer

Definition at line 1647 of file gnunet-service-fs_pr.c.

1649 {
1650  struct GNUNET_PeerIdentity pi;
1651 
1652  if (0 == pr->origin_pid)
1653  return GNUNET_YES;
1655  return (0 == memcmp (&pi, target, sizeof(struct GNUNET_PeerIdentity)))
1656  ? GNUNET_NO
1657  : GNUNET_YES;
1658 }

References GNUNET_NO, GNUNET_PEER_resolve(), GNUNET_YES, GSF_PendingRequest::origin_pid, and pi.

Referenced by consider_peer_for_forwarding(), and consider_request_for_forwarding().

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◆ GSF_local_lookup_()

void GSF_local_lookup_ ( struct GSF_PendingRequest pr,
GSF_LocalLookupContinuation  cont,
void *  cont_cls 
)

Look up the request in the local datastore.

Parameters
prthe pending request to process
contfunction to call at the end
cont_clsclosure for cont

Definition at line 1669 of file gnunet-service-fs_pr.c.

1672 {
1673  GNUNET_assert (NULL == pr->gh);
1674  GNUNET_assert (NULL == pr->cadet_request);
1675  GNUNET_assert (NULL == pr->llc_cont);
1676  pr->llc_cont = cont;
1677  pr->llc_cont_cls = cont_cls;
1678 #if INSANE_STATISTICS
1680  gettext_noop ("# Datastore lookups initiated"),
1681  1,
1682  GNUNET_NO);
1683 #endif
1684  start_local_query (pr, 0 /* next_uid */, true /* random */);
1685 }

References GSF_PendingRequest::cadet_request, gettext_noop, GSF_PendingRequest::gh, GNUNET_assert, GNUNET_NO, GNUNET_STATISTICS_update(), GSF_stats, GSF_PendingRequest::llc_cont, GSF_PendingRequest::llc_cont_cls, and start_local_query().

Referenced by handle_client_start_search(), and handle_p2p_get().

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◆ handle_p2p_put()

void handle_p2p_put ( void *  cls,
const struct PutMessage put 
)

Handle P2P "CONTENT" message.

Checks that the message is well-formed and then checks if there are any pending requests for this content and possibly passes it on (to local clients or other peers). Does NOT perform migration (content caching at this peer).

Parameters
clsthe other peer involved
putthe actual message

Definition at line 1698 of file gnunet-service-fs_pr.c.

1700 {
1701  struct GSF_ConnectedPeer *cp = cls;
1702  uint16_t msize;
1703  size_t dsize;
1704  enum GNUNET_BLOCK_Type type;
1706  struct GNUNET_HashCode query;
1707  struct ProcessReplyClosure prq;
1708  struct GNUNET_TIME_Relative block_time;
1709  double putl;
1710  struct PutMigrationContext *pmc;
1711 
1713  "Received P2P PUT from %s\n",
1716  msize = ntohs (put->header.size);
1717  dsize = msize - sizeof(struct PutMessage);
1718  type = ntohl (put->type);
1720  /* do not allow migrated content to live longer than 1 year */
1723  expiration);
1724  if (GNUNET_OK !=
1726  type,
1727  &put[1],
1728  dsize))
1729  {
1730  GNUNET_break_op (0);
1731  return;
1732  }
1733  if (GNUNET_OK !=
1735  type,
1736  &put[1],
1737  dsize,
1738  &query))
1739  {
1740  GNUNET_break_op (0);
1741  return;
1742  }
1744  gettext_noop ("# GAP PUT messages received"),
1745  1,
1746  GNUNET_NO);
1747  /* now, lookup 'query' */
1748  prq.data = (const void *) &put[1];
1749  prq.sender = cp;
1750  prq.size = dsize;
1751  prq.type = type;
1752  prq.expiration = expiration;
1753  prq.priority = 0;
1754  prq.anonymity_level = UINT32_MAX;
1755  prq.request_found = GNUNET_NO;
1757  &query,
1758  &process_reply,
1759  &prq);
1760  if (NULL != cp)
1761  {
1764  + 1000 * prq.priority);
1765  GSF_get_peer_performance_data_ (cp)->respect += prq.priority;
1766  }
1767  if ((GNUNET_YES == active_to_migration) && (NULL != cp) &&
1768  (GNUNET_NO == test_put_load_too_high (prq.priority)))
1769  {
1771  "Replicating result for query `%s' with priority %u\n",
1772  GNUNET_h2s (&query),
1773  prq.priority);
1774  pmc = GNUNET_new (struct PutMigrationContext);
1775  pmc->start = GNUNET_TIME_absolute_get ();
1776  pmc->requested = prq.request_found;
1779  &pmc->origin);
1780  if (NULL == GNUNET_DATASTORE_put (GSF_dsh,
1781  0,
1782  &query,
1783  dsize,
1784  &put[1],
1785  type,
1786  prq.priority,
1787  1 /* anonymity */,
1788  0 /* replication */,
1789  expiration,
1790  1 + prq.priority,
1793  pmc))
1794  {
1796  GNUNET_SYSERR,
1798  NULL);
1799  }
1800  }
1801  else if (NULL != cp)
1802  {
1804  "Choosing not to keep content `%s' (%d/%d)\n",
1805  GNUNET_h2s (&query),
1807  test_put_load_too_high (prq.priority));
1808  }
1810  if ((NULL != cp) && (GNUNET_NO == prq.request_found) &&
1812  (putl > 2.5 * (1 + prq.priority))))
1813  {
1816  block_time = GNUNET_TIME_relative_multiply (
1819  (unsigned int) (60000 * putl * putl)));
1820  GNUNET_log (
1822  "Asking to stop migration for %s because of load %f and events %d/%d\n",
1824  putl,
1826  (GNUNET_NO == prq.request_found));
1828  GNUNET_TIME_relative_to_absolute (block_time));
1829  }
1830 }
unsigned int GSF_cover_content_count
How many content messages have we received 'recently' that have not yet been claimed as cover traffic...
void GSF_connected_peer_change_preference_(struct GSF_ConnectedPeer *cp, uint64_t pref)
Notify core about a preference we have for the given peer (to allocate more resources towards it).
#define CONTENT_BANDWIDTH_VALUE
Bandwidth value of a 0-priority content (must be fairly high compared to query since content is typic...
static struct GNUNET_PeerIdentity pid
Identity of the peer we transmit to / connect to.
GNUNET_BLOCK_Type
WARNING: This header is generated! In order to add DHT block types, you must register them in GANA,...
int GNUNET_CONTAINER_multihashmap_get_multiple(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, GNUNET_CONTAINER_MulitHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map that match a particular key.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
#define GNUNET_TIME_UNIT_MILLISECONDS
One millisecond.
struct GNUNET_TIME_Absolute GNUNET_TIME_absolute_ntoh(struct GNUNET_TIME_AbsoluteNBO a)
Convert absolute time from network byte order.
Definition: time.c:736
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format.
uint32_t respect
Respect rating for this peer.
Response from FS service with a result for a previous FS search.
Definition: fs.h:329
struct GNUNET_MessageHeader header
Message type will be GNUNET_MESSAGE_TYPE_FS_PUT.
Definition: fs.h:333
uint32_t type
Type of the block (in big endian).
Definition: fs.h:338
struct GNUNET_TIME_AbsoluteNBO expiration
When does this result expire?
Definition: fs.h:343
struct GNUNET_TESTBED_Peer * peer
The peer associated with this model.

References active_to_migration, ProcessReplyClosure::anonymity_level, CONTENT_BANDWIDTH_VALUE, ProcessReplyClosure::data, datastore_put_load, expiration, PutMessage::expiration, ProcessReplyClosure::expiration, gettext_noop, GNUNET_assert, GNUNET_BLOCK_check_block(), GNUNET_BLOCK_get_key(), GNUNET_break_op, GNUNET_CONTAINER_multihashmap_get_multiple(), GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_DATASTORE_put(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_h2s(), GNUNET_i2s(), GNUNET_LOAD_get_load(), GNUNET_log, GNUNET_new, GNUNET_NO, GNUNET_OK, GNUNET_PEER_resolve(), GNUNET_STATISTICS_update(), GNUNET_STRINGS_relative_time_to_string(), GNUNET_SYSERR, GNUNET_TIME_absolute_get(), GNUNET_TIME_absolute_min(), GNUNET_TIME_absolute_ntoh(), GNUNET_TIME_relative_multiply(), GNUNET_TIME_relative_to_absolute(), GNUNET_TIME_UNIT_MILLISECONDS, GNUNET_TIME_UNIT_YEARS, GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_YES, GSF_block_ctx, GSF_block_peer_migration_(), GSF_connected_peer_change_preference_(), GSF_cover_content_count, GSF_dsh, GSF_get_peer_performance_data_(), GSF_stats, PutMessage::header, MAX_DATASTORE_QUEUE, PutMigrationContext::origin, peer, pid, pr_map, ProcessReplyClosure::priority, process_reply(), put_migration_continuation(), ProcessReplyClosure::request_found, PutMigrationContext::requested, GSF_PeerPerformanceData::respect, ProcessReplyClosure::sender, ProcessReplyClosure::size, GNUNET_MessageHeader::size, PutMigrationContext::start, test_put_load_too_high(), PutMessage::type, ProcessReplyClosure::type, and type.

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◆ GSF_pending_request_test_active_()

int GSF_pending_request_test_active_ ( struct GSF_PendingRequest pr)

Check if the given request is still active.

Parameters
prpending request
Returns
GNUNET_YES if the request is still active

Definition at line 1840 of file gnunet-service-fs_pr.c.

1841 {
1842  return (NULL != pr->rh) ? GNUNET_YES : GNUNET_NO;
1843 }

References GNUNET_NO, GNUNET_YES, and GSF_PendingRequest::rh.

Referenced by consider_peer_for_forwarding(), get_latest(), GSF_consider_forwarding(), GSF_plan_add_(), and merge_pr().

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◆ GSF_pending_request_init_()

void GSF_pending_request_init_ ( void  )

Setup the subsystem.

Definition at line 1850 of file gnunet-service-fs_pr.c.

1851 {
1852  if (GNUNET_OK !=
1854  "fs",
1855  "MAX_PENDING_REQUESTS",
1857  {
1859  "fs",
1860  "MAX_PENDING_REQUESTS");
1861  }
1863  GNUNET_CONFIGURATION_get_value_yesno (GSF_cfg, "FS", "CONTENT_CACHING");
1868 }
const struct GNUNET_CONFIGURATION_Handle * GSF_cfg
Our configuration.
#define DATASTORE_LOAD_AUTODECLINE
At what frequency should our datastore load decrease automatically (since if we don't use it,...
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_number(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option, unsigned long long *number)
Get a configuration value that should be a number.
enum GNUNET_GenericReturnValue GNUNET_CONFIGURATION_get_value_yesno(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *section, const char *option)
Get a configuration value that should be in a set of "YES" or "NO".
struct GNUNET_CONTAINER_MultiHashMap * GNUNET_CONTAINER_multihashmap_create(unsigned int len, int do_not_copy_keys)
Create a multi hash map.
struct GNUNET_CONTAINER_Heap * GNUNET_CONTAINER_heap_create(enum GNUNET_CONTAINER_HeapOrder order)
Create a new heap.
@ GNUNET_CONTAINER_HEAP_ORDER_MIN
Heap with the minimum cost at the root.
struct GNUNET_LOAD_Value * GNUNET_LOAD_value_init(struct GNUNET_TIME_Relative autodecline)
Create a new load value.
Definition: load.c:124
void GNUNET_log_config_missing(enum GNUNET_ErrorType kind, const char *section, const char *option)
Log error message about missing configuration option.
@ GNUNET_ERROR_TYPE_INFO

References active_to_migration, DATASTORE_LOAD_AUTODECLINE, datastore_put_load, GNUNET_CONFIGURATION_get_value_number(), GNUNET_CONFIGURATION_get_value_yesno(), GNUNET_CONTAINER_heap_create(), GNUNET_CONTAINER_HEAP_ORDER_MIN, GNUNET_CONTAINER_multihashmap_create(), GNUNET_ERROR_TYPE_INFO, GNUNET_LOAD_value_init(), GNUNET_log_config_missing(), GNUNET_OK, GNUNET_YES, GSF_cfg, max_pending_requests, pr_map, and requests_by_expiration_heap.

Referenced by run().

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◆ GSF_pending_request_done_()

void GSF_pending_request_done_ ( void  )

Shutdown the subsystem.

Definition at line 1875 of file gnunet-service-fs_pr.c.

1876 {
1879  pr_map = NULL;
1883  datastore_put_load = NULL;
1884 }
void GNUNET_CONTAINER_multihashmap_destroy(struct GNUNET_CONTAINER_MultiHashMap *map)
Destroy a hash map.
void GNUNET_CONTAINER_heap_destroy(struct GNUNET_CONTAINER_Heap *heap)
Destroys the heap.
#define GNUNET_LOAD_value_free(lv)
Free a load value.

Referenced by shutdown_task().

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Variable Documentation

◆ pr_map

struct GNUNET_CONTAINER_MultiHashMap* pr_map
static

All pending requests, ordered by the query.

Entries are of type 'struct GSF_PendingRequest*'.

Definition at line 205 of file gnunet-service-fs_pr.c.

Referenced by clean_request(), GSF_iterate_pending_requests_(), GSF_pending_request_cancel_(), GSF_pending_request_create_(), GSF_pending_request_init_(), and handle_p2p_put().

◆ datastore_put_load

struct GNUNET_LOAD_Value* datastore_put_load
static

Datastore 'PUT' load tracking.

Definition at line 211 of file gnunet-service-fs_pr.c.

Referenced by GSF_pending_request_init_(), handle_p2p_put(), put_migration_continuation(), and test_put_load_too_high().

◆ active_to_migration

int active_to_migration
static

Are we allowed to migrate content to this peer.

Definition at line 217 of file gnunet-service-fs_pr.c.

Referenced by GSF_pending_request_init_(), handle_dht_reply(), and handle_p2p_put().

◆ requests_by_expiration_heap

struct GNUNET_CONTAINER_Heap* requests_by_expiration_heap
static

Heap with the request that will expire next at the top.

Contains pointers of type "struct PendingRequest*"; these will also be aliased from the "requests_by_peer" data structures and the "requests_by_query" table. Note that requests from our clients don't expire and are thus NOT in the "requests_by_expiration" (or the "requests_by_peer" tables).

Definition at line 228 of file gnunet-service-fs_pr.c.

Referenced by GSF_pending_request_create_(), and GSF_pending_request_init_().

◆ max_pending_requests

unsigned long long max_pending_requests = (32 * 1024)
static

Maximum number of requests (from other peers, overall) that we're willing to have pending at any given point in time.

Can be changed via the configuration file (32k is just the default).

Definition at line 236 of file gnunet-service-fs_pr.c.

Referenced by GSF_pending_request_create_(), and GSF_pending_request_init_().