GNUnet 0.21.1
messenger_api_message_control.h File Reference
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Data Structures

struct  GNUNET_MESSENGER_MessageControlQueue
 
struct  GNUNET_MESSENGER_MessageControl
 

Functions

struct GNUNET_MESSENGER_MessageControlcreate_message_control (struct GNUNET_MESSENGER_Room *room)
 Creates and allocates a new message control for a room of the client API. More...
 
void destroy_message_control (struct GNUNET_MESSENGER_MessageControl *control)
 Destroys a message control and frees its memory fully from the client API. More...
 
void process_message_control (struct GNUNET_MESSENGER_MessageControl *control, const struct GNUNET_HashCode *sender, const struct GNUNET_HashCode *context, const struct GNUNET_HashCode *hash, const struct GNUNET_MESSENGER_Message *message, enum GNUNET_MESSENGER_MessageFlags flags)
 Processes a new message with its hash and regarding information about sender, context and message flags using a selected message control. More...
 

Function Documentation

◆ create_message_control()

struct GNUNET_MESSENGER_MessageControl * create_message_control ( struct GNUNET_MESSENGER_Room room)

Creates and allocates a new message control for a room of the client API.

Parameters
[in,out]roomRoom
Returns
New message control

Definition at line 38 of file messenger_api_message_control.c.

39{
40 GNUNET_assert (room);
41
42 struct GNUNET_MESSENGER_MessageControl *control;
43
45 control->room = room;
46
49 GNUNET_NO);
50
51 control->head = NULL;
52 control->tail = NULL;
53
54 return control;
55}
struct GNUNET_CONTAINER_MultiShortmap * GNUNET_CONTAINER_multishortmap_create(unsigned int len, int do_not_copy_keys)
Create a multi peer map (hash map for public keys of peers).
@ GNUNET_NO
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_CONTAINER_MultiShortmap * member_messages
struct GNUNET_MESSENGER_MessageControlQueue * head
struct GNUNET_CONTAINER_MultiShortmap * peer_messages
struct GNUNET_MESSENGER_MessageControlQueue * tail

References GNUNET_assert, GNUNET_CONTAINER_multishortmap_create(), GNUNET_new, GNUNET_NO, GNUNET_MESSENGER_MessageControl::head, GNUNET_MESSENGER_MessageControl::member_messages, GNUNET_MESSENGER_MessageControl::peer_messages, GNUNET_MESSENGER_MessageControl::room, and GNUNET_MESSENGER_MessageControl::tail.

Referenced by create_room().

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◆ destroy_message_control()

void destroy_message_control ( struct GNUNET_MESSENGER_MessageControl control)

Destroys a message control and frees its memory fully from the client API.

Parameters
[in,out]controlMessage control

Definition at line 59 of file messenger_api_message_control.c.

60{
61 GNUNET_assert (control);
62
64 while (control->head)
65 {
67
68 if (queue->task)
70
71 destroy_message (queue->message);
72
75 }
76
79
81}
static void queue(const char *hostname)
Add hostname to the list of requests to be made.
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
void GNUNET_CONTAINER_multishortmap_destroy(struct GNUNET_CONTAINER_MultiShortmap *map)
Destroy a hash map.
#define GNUNET_free(ptr)
Wrapper around free.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:981
void destroy_message(struct GNUNET_MESSENGER_Message *message)
Destroys a message and frees its memory fully.
struct GNUNET_MESSENGER_MessageControl * control

References GNUNET_MESSENGER_MessageControlQueue::control, destroy_message(), GNUNET_assert, GNUNET_CONTAINER_DLL_remove, GNUNET_CONTAINER_multishortmap_destroy(), GNUNET_free, GNUNET_SCHEDULER_cancel(), GNUNET_MESSENGER_MessageControl::head, GNUNET_MESSENGER_MessageControl::member_messages, GNUNET_MESSENGER_MessageControl::peer_messages, queue(), and GNUNET_MESSENGER_MessageControl::tail.

Referenced by destroy_room().

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◆ process_message_control()

void process_message_control ( struct GNUNET_MESSENGER_MessageControl control,
const struct GNUNET_HashCode sender,
const struct GNUNET_HashCode context,
const struct GNUNET_HashCode hash,
const struct GNUNET_MESSENGER_Message message,
enum GNUNET_MESSENGER_MessageFlags  flags 
)

Processes a new message with its hash and regarding information about sender, context and message flags using a selected message control.

The message control will ensure order of messages so that senders of messages can be identified via previously processed messages.

Parameters
[in,out]controlMessage control
[in]senderSender hash
[in]contextContext hash
[in]hashMessage hash
[in]messageMessage
[in]flagsMessage flags

Definition at line 199 of file messenger_api_message_control.c.

205{
206 GNUNET_assert ((control) && (sender) && (context) && (hash) && (message));
207
210 handle);
211
213 store, context, sender);
214
215 if ((! contact) &&
216 (GNUNET_MESSENGER_KIND_JOIN != message->header.kind) &&
218 enqueue_message_control (control, sender, context, hash, message, flags);
219 else
220 handle_message_control (control, contact, hash, message, flags);
221
222 struct GNUNET_CONTAINER_MultiShortmap *map = NULL;
223 const struct GNUNET_ShortHashCode *id = &(message->header.sender_id);
224
225 if (GNUNET_YES == is_peer_message (message))
226 map = control->peer_messages;
227
228 switch (message->header.kind)
229 {
231 map = control->member_messages;
232 break;
234 map = control->peer_messages;
235 break;
237 map = control->member_messages;
238 id = &(message->body.id.id);
239 break;
240 default:
241 break;
242 }
243
244 if (! map)
245 return;
246
248 id,
250 NULL);
251}
static pa_context * context
Pulseaudio context.
static struct GNUNET_VPN_Handle * handle
Handle to vpn service.
Definition: gnunet-vpn.c:35
int GNUNET_CONTAINER_multishortmap_get_multiple(struct GNUNET_CONTAINER_MultiShortmap *map, const struct GNUNET_ShortHashCode *key, GNUNET_CONTAINER_ShortmapIterator it, void *it_cls)
Iterate over all entries in the map that match a particular key.
@ GNUNET_YES
@ GNUNET_MESSENGER_KIND_PEER
The peer kind.
@ GNUNET_MESSENGER_KIND_JOIN
The join kind.
@ GNUNET_MESSENGER_KIND_ID
The id kind.
struct GNUNET_MESSENGER_Contact * get_store_contact_raw(struct GNUNET_MESSENGER_ContactStore *store, const struct GNUNET_HashCode *context, const struct GNUNET_HashCode *key_hash)
Returns a contact using the hash of a specific public key.
struct GNUNET_MESSENGER_ContactStore * get_handle_contact_store(struct GNUNET_MESSENGER_Handle *handle)
Returns the used contact store of a given handle.
enum GNUNET_GenericReturnValue is_peer_message(const struct GNUNET_MESSENGER_Message *message)
Returns whether a specific kind of message can be sent by the service without usage of a clients priv...
static enum GNUNET_GenericReturnValue iterate_message_control(void *cls, const struct GNUNET_ShortHashCode *key, void *value)
static void enqueue_message_control(struct GNUNET_MESSENGER_MessageControl *control, const struct GNUNET_HashCode *sender, const struct GNUNET_HashCode *context, const struct GNUNET_HashCode *hash, const struct GNUNET_MESSENGER_Message *message, enum GNUNET_MESSENGER_MessageFlags flags)
static void handle_message_control(struct GNUNET_MESSENGER_MessageControl *control, struct GNUNET_MESSENGER_Contact *contact, const struct GNUNET_HashCode *hash, const struct GNUNET_MESSENGER_Message *message, enum GNUNET_MESSENGER_MessageFlags flags)
struct GNUNET_MESSENGER_Handle * get_room_handle(struct GNUNET_MESSENGER_Room *room)
Returns the messenger handle of the room.
static struct GNUNET_CONTAINER_MultiPeerMap * map
Peermap of PeerIdentities to "struct PeerEntry" (for fast lookup).
Definition: peer.c:63
Internal representation of the hash map.
struct GNUNET_MESSENGER_MessageId id
enum GNUNET_MESSENGER_MessageKind kind
The kind of the message.
struct GNUNET_ShortHashCode sender_id
The senders id inside of the room the message was sent in.
struct GNUNET_ShortHashCode id
The new id which will replace the senders id in a room.
struct GNUNET_MESSENGER_MessageHeader header
Header.
struct GNUNET_MESSENGER_MessageBody body
Body.
A 256-bit hashcode.

References GNUNET_MESSENGER_Message::body, context, GNUNET_MESSENGER_MessageControlQueue::control, enqueue_message_control(), get_handle_contact_store(), get_room_handle(), get_store_contact_raw(), GNUNET_assert, GNUNET_CONTAINER_multishortmap_get_multiple(), GNUNET_MESSENGER_KIND_ID, GNUNET_MESSENGER_KIND_JOIN, GNUNET_MESSENGER_KIND_PEER, GNUNET_YES, handle, handle_message_control(), GNUNET_MESSENGER_MessageControlQueue::hash, GNUNET_MESSENGER_Message::header, GNUNET_MESSENGER_MessageId::id, GNUNET_MESSENGER_MessageBody::id, is_peer_message(), iterate_message_control(), GNUNET_MESSENGER_MessageHeader::kind, map, GNUNET_MESSENGER_MessageControl::member_messages, GNUNET_MESSENGER_MessageControlQueue::message, GNUNET_MESSENGER_MessageControl::peer_messages, GNUNET_MESSENGER_MessageControl::room, GNUNET_MESSENGER_MessageControlQueue::sender, and GNUNET_MESSENGER_MessageHeader::sender_id.

Referenced by handle_recv_message().

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