GNUnet  0.11.x
Data Structures | Functions | Variables
gnunet-service-messenger.c File Reference

GNUnet MESSENGER service. More...

#include "gnunet-service-messenger.h"
#include "gnunet-service-messenger_service.h"
#include "messenger_api_message.h"
Include dependency graph for gnunet-service-messenger.c:

Go to the source code of this file.

Data Structures

struct  GNUNET_MESSENGER_Client
 

Functions

static int check_create (void *cls, const struct GNUNET_MESSENGER_CreateMessage *msg)
 
static void handle_create (void *cls, const struct GNUNET_MESSENGER_CreateMessage *msg)
 
static void handle_update (void *cls, const struct GNUNET_MESSENGER_UpdateMessage *msg)
 
static void handle_destroy (void *cls, const struct GNUNET_MESSENGER_DestroyMessage *msg)
 
static int check_set_name (void *cls, const struct GNUNET_MESSENGER_NameMessage *msg)
 
static void handle_set_name (void *cls, const struct GNUNET_MESSENGER_NameMessage *msg)
 
static void handle_room_open (void *cls, const struct GNUNET_MESSENGER_RoomMessage *msg)
 
static void handle_room_entry (void *cls, const struct GNUNET_MESSENGER_RoomMessage *msg)
 
static void handle_room_close (void *cls, const struct GNUNET_MESSENGER_RoomMessage *msg)
 
static int check_send_message (void *cls, const struct GNUNET_MESSENGER_SendMessage *msg)
 
static void handle_send_message (void *cls, const struct GNUNET_MESSENGER_SendMessage *msg)
 
static void handle_get_message (void *cls, const struct GNUNET_MESSENGER_RecvMessage *msg)
 
static void * callback_client_connect (void *cls, struct GNUNET_SERVICE_Client *client, struct GNUNET_MQ_Handle *mq)
 
static void callback_client_disconnect (void *cls, struct GNUNET_SERVICE_Client *client, void *internal_cls)
 
static void run (void *cls, const struct GNUNET_CONFIGURATION_Handle *config, struct GNUNET_SERVICE_Handle *service)
 Setup MESSENGER internals. More...
 
 GNUNET_SERVICE_MAIN (GNUNET_MESSENGER_SERVICE_NAME, GNUNET_SERVICE_OPTION_NONE, &run, &callback_client_connect, &callback_client_disconnect, NULL, GNUNET_MQ_hd_var_size(create, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_CREATE, struct GNUNET_MESSENGER_CreateMessage, NULL), GNUNET_MQ_hd_fixed_size(update, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_UPDATE, struct GNUNET_MESSENGER_UpdateMessage, NULL), GNUNET_MQ_hd_fixed_size(destroy, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_DESTROY, struct GNUNET_MESSENGER_DestroyMessage, NULL), GNUNET_MQ_hd_var_size(set_name, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_SET_NAME, struct GNUNET_MESSENGER_NameMessage, NULL), GNUNET_MQ_hd_fixed_size(room_open, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_OPEN, struct GNUNET_MESSENGER_RoomMessage, NULL), GNUNET_MQ_hd_fixed_size(room_entry, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_ENTRY, struct GNUNET_MESSENGER_RoomMessage, NULL), GNUNET_MQ_hd_fixed_size(room_close, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_CLOSE, struct GNUNET_MESSENGER_RoomMessage, NULL), GNUNET_MQ_hd_var_size(send_message, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_SEND_MESSAGE, struct GNUNET_MESSENGER_SendMessage, NULL), GNUNET_MQ_hd_fixed_size(get_message, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_GET_MESSAGE, struct GNUNET_MESSENGER_RecvMessage, NULL), GNUNET_MQ_handler_end())
 Define "main" method using service macro. More...
 

Variables

struct GNUNET_MESSENGER_Servicemessenger
 

Detailed Description

GNUnet MESSENGER service.

Author
Tobias Frisch

Definition in file gnunet-service-messenger.c.

Function Documentation

◆ check_create()

static int check_create ( void *  cls,
const struct GNUNET_MESSENGER_CreateMessage msg 
)
static

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

References GNUNET_MQ_check_zero_termination, and GNUNET_OK.

41 {
43  return GNUNET_OK;
44 }
#define GNUNET_MQ_check_zero_termination(m)
Insert code for a "check_" function that verifies that a given variable-length message received over ...

◆ handle_create()

static void handle_create ( void *  cls,
const struct GNUNET_MESSENGER_CreateMessage msg 
)
static

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

References GNUNET_MESSENGER_Client::client, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_SERVICE_client_continue(), GNUNET_MESSENGER_Client::handle, name, and setup_handle_name().

48 {
49  struct GNUNET_MESSENGER_Client *msg_client = cls;
50 
51  const char *name = ((const char*) msg) + sizeof(*msg);
52 
53  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Handle created with name: %s\n", name);
54 
55  setup_handle_name (msg_client->handle, strlen (name) > 0? name : NULL);
56 
58 }
void setup_handle_name(struct GNUNET_MESSENGER_SrvHandle *handle, const char *name)
Tries to set the name and EGO key of a handle initially by looking up a specific name.
struct GNUNET_SERVICE_Client * client
const char * name
#define GNUNET_log(kind,...)
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_update()

static void handle_update ( void *  cls,
const struct GNUNET_MESSENGER_UpdateMessage msg 
)
static

Definition at line 61 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_OK, GNUNET_SERVICE_client_continue(), GNUNET_MESSENGER_Client::handle, and update_handle().

62 {
63  struct GNUNET_MESSENGER_Client *msg_client = cls;
64 
65  if (GNUNET_OK != update_handle (msg_client->handle))
66  GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Name is required to update key!\n");
67 
69 }
struct GNUNET_SERVICE_Client * client
int update_handle(struct GNUNET_MESSENGER_SrvHandle *handle)
Tries to change the keypair of an EGO of a handle under the same name and informs all rooms about the...
#define GNUNET_log(kind,...)
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_destroy()

static void handle_destroy ( void *  cls,
const struct GNUNET_MESSENGER_DestroyMessage msg 
)
static

Definition at line 72 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, and GNUNET_SERVICE_client_drop().

73 {
74  struct GNUNET_MESSENGER_Client *msg_client = cls;
75 
76  GNUNET_SERVICE_client_drop (msg_client->client);
77 }
struct GNUNET_SERVICE_Client * client
void GNUNET_SERVICE_client_drop(struct GNUNET_SERVICE_Client *c)
Ask the server to disconnect from the given client.
Definition: service.c:2325
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◆ check_set_name()

static int check_set_name ( void *  cls,
const struct GNUNET_MESSENGER_NameMessage msg 
)
static

Definition at line 80 of file gnunet-service-messenger.c.

References GNUNET_MQ_check_zero_termination, and GNUNET_OK.

81 {
83  return GNUNET_OK;
84 }
#define GNUNET_MQ_check_zero_termination(m)
Insert code for a "check_" function that verifies that a given variable-length message received over ...

◆ handle_set_name()

static void handle_set_name ( void *  cls,
const struct GNUNET_MESSENGER_NameMessage msg 
)
static

Definition at line 87 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_log, GNUNET_SERVICE_client_continue(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, name, and set_handle_name().

88 {
89  struct GNUNET_MESSENGER_Client *msg_client = cls;
90 
91  const char *name = ((const char*) msg) + sizeof(*msg);
92 
93  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Handles name is now: %s\n", name);
94 
95  if (GNUNET_YES != set_handle_name (msg_client->handle, name))
96  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "No valid name: %s\n", name);
97 
99 }
struct GNUNET_SERVICE_Client * client
int set_handle_name(struct GNUNET_MESSENGER_SrvHandle *handle, const char *name)
Tries to rename the handle which implies renaming the EGO its using and moving all related data into ...
const char * name
#define GNUNET_log(kind,...)
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_room_open()

static void handle_room_open ( void *  cls,
const struct GNUNET_MESSENGER_RoomMessage msg 
)
static

Definition at line 102 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, env, get_handle_member_id(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_log, GNUNET_memcpy, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_OPEN, GNUNET_MQ_msg, GNUNET_MQ_send(), GNUNET_SERVICE_client_continue(), GNUNET_sh2s(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, GNUNET_MESSENGER_RoomMessage::key, GNUNET_MESSENGER_SrvHandle::mq, open_handle_room(), and response.

103 {
104  struct GNUNET_MESSENGER_Client *msg_client = cls;
105 
106  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Opening room: %s\n",
107  GNUNET_h2s (&(msg->key)));
108 
109  if (GNUNET_YES == open_handle_room (msg_client->handle, &(msg->key)))
110  {
111  const struct GNUNET_ShortHashCode* member_id = get_handle_member_id(msg_client->handle, &(msg->key));
112 
113  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Opening room with member id: %s\n",
114  GNUNET_sh2s (member_id));
115 
117  struct GNUNET_MQ_Envelope *env;
118 
120  GNUNET_memcpy(&(response->key), &(msg->key), sizeof(msg->key));
121  GNUNET_MQ_send (msg_client->handle->mq, env);
122  }
123  else
124  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Opening room failed: %s\n",
125  GNUNET_h2s (&(msg->key)));
126 
128 }
const char * GNUNET_sh2s(const struct GNUNET_ShortHashCode *shc)
Convert a short hash value to a string (for printing debug messages).
struct GNUNET_SERVICE_Client * client
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
A 256-bit hashcode.
int open_handle_room(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Makes a given handle a member of the room using a specific key and opens the room from the handles se...
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
#define GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_OPEN
#define GNUNET_log(kind,...)
static struct MHD_Response * response
Our canonical response.
const struct GNUNET_ShortHashCode * get_handle_member_id(const struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Returns the member id of a given handle in a specific room.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:355
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
General message to confirm interaction with a room.
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_room_entry()

static void handle_room_entry ( void *  cls,
const struct GNUNET_MESSENGER_RoomMessage msg 
)
static

Definition at line 131 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, GNUNET_MESSENGER_RoomMessage::door, entry_handle_room(), env, get_handle_member_id(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_i2s(), GNUNET_log, GNUNET_memcpy, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_ENTRY, GNUNET_MQ_msg, GNUNET_MQ_send(), GNUNET_SERVICE_client_continue(), GNUNET_sh2s(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, GNUNET_MESSENGER_RoomMessage::key, GNUNET_MESSENGER_SrvHandle::mq, and response.

132 {
133  struct GNUNET_MESSENGER_Client *msg_client = cls;
134 
135  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Entering room: %s, %s\n",
136  GNUNET_h2s (&(msg->key)), GNUNET_i2s (&(msg->door)));
137 
138  if (GNUNET_YES == entry_handle_room (msg_client->handle, &(msg->door), &(msg->key)))
139  {
140  const struct GNUNET_ShortHashCode* member_id = get_handle_member_id(msg_client->handle, &(msg->key));
141 
142  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Entering room with member id: %s\n",
143  GNUNET_sh2s (member_id));
144 
146  struct GNUNET_MQ_Envelope *env;
147 
149  GNUNET_memcpy(&(response->door), &(msg->door), sizeof(msg->door));
150  GNUNET_memcpy(&(response->key), &(msg->key), sizeof(msg->key));
151  GNUNET_MQ_send (msg_client->handle->mq, env);
152  }
153  else
154  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Entrance into room failed: %s, %s\n",
155  GNUNET_h2s (&(msg->key)), GNUNET_i2s (&(msg->door)));
156 
158 }
const char * GNUNET_sh2s(const struct GNUNET_ShortHashCode *shc)
Convert a short hash value to a string (for printing debug messages).
struct GNUNET_SERVICE_Client * client
struct GNUNET_PeerIdentity door
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
A 256-bit hashcode.
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
#define GNUNET_log(kind,...)
static struct MHD_Response * response
Our canonical response.
#define GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_ENTRY
const struct GNUNET_ShortHashCode * get_handle_member_id(const struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Returns the member id of a given handle in a specific room.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:355
int entry_handle_room(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_PeerIdentity *door, const struct GNUNET_HashCode *key)
Makes a given handle a member of the room using a specific key and enters the room through a tunnel t...
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
General message to confirm interaction with a room.
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_room_close()

static void handle_room_close ( void *  cls,
const struct GNUNET_MESSENGER_RoomMessage msg 
)
static

Definition at line 161 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, close_handle_room(), env, get_handle_member_id(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_log, GNUNET_memcpy, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_CLOSE, GNUNET_MQ_msg, GNUNET_MQ_send(), GNUNET_SERVICE_client_continue(), GNUNET_sh2s(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, GNUNET_MESSENGER_RoomMessage::key, GNUNET_MESSENGER_SrvHandle::mq, and response.

162 {
163  struct GNUNET_MESSENGER_Client *msg_client = cls;
164 
165  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Closing room: %s\n", GNUNET_h2s (&(msg->key)));
166 
167  if (GNUNET_YES == close_handle_room (msg_client->handle, &(msg->key)))
168  {
169  const struct GNUNET_ShortHashCode* member_id = get_handle_member_id(msg_client->handle, &(msg->key));
170 
171  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Closing room with member id: %s\n",
172  GNUNET_sh2s (member_id));
173 
175  struct GNUNET_MQ_Envelope *env;
176 
178  GNUNET_memcpy(&(response->key), &(msg->key), sizeof(msg->key));
179  GNUNET_MQ_send (msg_client->handle->mq, env);
180  }
181  else
182  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Closing room failed: %s\n", GNUNET_h2s (&(msg->key)));
183 
185 }
const char * GNUNET_sh2s(const struct GNUNET_ShortHashCode *shc)
Convert a short hash value to a string (for printing debug messages).
struct GNUNET_SERVICE_Client * client
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
A 256-bit hashcode.
int close_handle_room(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Removes the membership of the room using a specific key and closes it if no other handle from this se...
#define GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_CLOSE
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
#define GNUNET_log(kind,...)
static struct MHD_Response * response
Our canonical response.
const struct GNUNET_ShortHashCode * get_handle_member_id(const struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key)
Returns the member id of a given handle in a specific room.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:355
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
General message to confirm interaction with a room.
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ check_send_message()

static int check_send_message ( void *  cls,
const struct GNUNET_MESSENGER_SendMessage msg 
)
static

Definition at line 188 of file gnunet-service-messenger.c.

References decode_message(), GNUNET_NO, GNUNET_OK, GNUNET_YES, GNUNET_MESSENGER_SendMessage::header, GNUNET_MESSENGER_SendMessage::key, and GNUNET_MessageHeader::size.

189 {
190  const uint16_t full_length = ntohs (msg->header.size) - sizeof(msg->header);
191 
192  if (full_length < sizeof(msg->key))
193  return GNUNET_NO;
194 
195  const uint16_t length = full_length - sizeof(msg->key);
196  const char *buffer = ((const char*) msg) + sizeof(*msg);
197 
198  struct GNUNET_MESSENGER_Message message;
199 
200  if (GNUNET_YES != decode_message (&message, length, buffer))
201  return GNUNET_NO;
202 
203  return GNUNET_OK;
204 }
int decode_message(struct GNUNET_MESSENGER_Message *message, uint16_t length, const char *buffer)
Decodes a message from a given buffer of a maximal length in bytes.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
struct GNUNET_MessageHeader header
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◆ handle_send_message()

static void handle_send_message ( void *  cls,
const struct GNUNET_MESSENGER_SendMessage msg 
)
static

Definition at line 207 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, decode_message(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_log, GNUNET_MESSENGER_name_of_kind(), GNUNET_SERVICE_client_continue(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, GNUNET_MESSENGER_SendMessage::header, GNUNET_MESSENGER_Message::header, key, GNUNET_MESSENGER_SendMessage::key, GNUNET_MESSENGER_MessageHeader::kind, send_handle_message(), and GNUNET_MessageHeader::size.

208 {
209  struct GNUNET_MESSENGER_Client *msg_client = cls;
210 
211  const struct GNUNET_HashCode *key = &(msg->key);
212  const char *buffer = ((const char*) msg) + sizeof(*msg);
213 
214  const uint16_t length = ntohs (msg->header.size) - sizeof(*msg);
215 
216  struct GNUNET_MESSENGER_Message message;
217  decode_message (&message, length, buffer);
218 
219  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Sending message: %s to %s\n",
220  GNUNET_MESSENGER_name_of_kind (message.header.kind),
221  GNUNET_h2s (key));
222 
223  if (GNUNET_YES != send_handle_message (msg_client->handle, key, &message))
224  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Sending message failed: %s to %s\n",
225  GNUNET_MESSENGER_name_of_kind (message.header.kind),
226  GNUNET_h2s (key));
227 
229 }
int decode_message(struct GNUNET_MESSENGER_Message *message, uint16_t length, const char *buffer)
Decodes a message from a given buffer of a maximal length in bytes.
struct GNUNET_SERVICE_Client * client
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
int send_handle_message(struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *key, struct GNUNET_MESSENGER_Message *message)
Sends a message from a given handle to the room using a specific key.
struct GNUNET_MessageHeader header
const char * GNUNET_MESSENGER_name_of_kind(enum GNUNET_MESSENGER_MessageKind kind)
Get the name of a message kind.
Definition: messenger_api.c:34
A 512-bit hashcode.
struct GNUNET_HashCode key
The key used in the DHT.
#define GNUNET_log(kind,...)
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ handle_get_message()

static void handle_get_message ( void *  cls,
const struct GNUNET_MESSENGER_RecvMessage msg 
)
static

Definition at line 232 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Client::client, get_room_message(), get_service_room(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_log, GNUNET_SERVICE_client_continue(), GNUNET_YES, GNUNET_MESSENGER_Client::handle, GNUNET_MESSENGER_RecvMessage::hash, and GNUNET_MESSENGER_RecvMessage::key.

233 {
234  struct GNUNET_MESSENGER_Client *msg_client = cls;
235 
236  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Requesting message from room: %s\n",
237  GNUNET_h2s (&(msg->key)));
238 
239  struct GNUNET_MESSENGER_SrvRoom *room = get_service_room (messenger, &(msg->key));
240 
241  if (room)
242  get_room_message (room, msg_client->handle, &(msg->hash), GNUNET_YES);
243  else
244  GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Room not found: %s\n",
245  GNUNET_h2s (&(msg->key)));
246 
248 }
struct GNUNET_SERVICE_Client * client
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
struct GNUNET_MESSENGER_Service * messenger
struct GNUNET_MESSENGER_SrvRoom * get_service_room(struct GNUNET_MESSENGER_Service *service, const struct GNUNET_HashCode *key)
Returns the room identified by a given key for a service.
const struct GNUNET_MESSENGER_Message * get_room_message(struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_HashCode *hash, int request)
Returns a message from a room identified by a given hash.
#define GNUNET_log(kind,...)
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2244
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ callback_client_connect()

static void* callback_client_connect ( void *  cls,
struct GNUNET_SERVICE_Client client,
struct GNUNET_MQ_Handle mq 
)
static

Definition at line 251 of file gnunet-service-messenger.c.

References add_service_handle(), GNUNET_MESSENGER_Client::client, GNUNET_new, and GNUNET_MESSENGER_Client::handle.

Referenced by run().

252 {
253  struct GNUNET_MESSENGER_Client *msg_client = GNUNET_new(struct GNUNET_MESSENGER_Client);
254 
255  msg_client->client = client;
256  msg_client->handle = add_service_handle (messenger, mq);
257 
258  return msg_client;
259 }
struct GNUNET_SERVICE_Client * client
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_MESSENGER_SrvHandle * add_service_handle(struct GNUNET_MESSENGER_Service *service, struct GNUNET_MQ_Handle *mq)
Creates and adds a new handle to a service using a given message queue.
struct GNUNET_MESSENGER_Service * messenger
struct GNUNET_MESSENGER_SrvHandle * handle
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◆ callback_client_disconnect()

static void callback_client_disconnect ( void *  cls,
struct GNUNET_SERVICE_Client client,
void *  internal_cls 
)
static

Definition at line 262 of file gnunet-service-messenger.c.

References GNUNET_free, GNUNET_MESSENGER_Client::handle, and remove_service_handle().

Referenced by run().

263 {
264  struct GNUNET_MESSENGER_Client *msg_client = internal_cls;
265 
266  remove_service_handle (messenger, msg_client->handle);
267 
268  GNUNET_free(msg_client);
269 }
struct GNUNET_MESSENGER_Service * messenger
void remove_service_handle(struct GNUNET_MESSENGER_Service *service, struct GNUNET_MESSENGER_SrvHandle *handle)
Removes a handle from a service and destroys it.
struct GNUNET_MESSENGER_SrvHandle * handle
#define GNUNET_free(ptr)
Wrapper around free.
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◆ run()

static void run ( void *  cls,
const struct GNUNET_CONFIGURATION_Handle config,
struct GNUNET_SERVICE_Handle service 
)
static

Setup MESSENGER internals.

Parameters
clsclosure
configconfiguration to use
servicethe initialized service

Definition at line 279 of file gnunet-service-messenger.c.

References GNUNET_MESSENGER_Service::cadet, callback_client_connect(), callback_client_disconnect(), create_service(), destroy(), get_message(), GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_CREATE, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_DESTROY, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_SET_NAME, GNUNET_MESSAGE_TYPE_MESSENGER_CONNECTION_UPDATE, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_CLOSE, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_ENTRY, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_GET_MESSAGE, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_OPEN, GNUNET_MESSAGE_TYPE_MESSENGER_ROOM_SEND_MESSAGE, GNUNET_MESSENGER_SERVICE_NAME, GNUNET_MQ_handler_end, GNUNET_MQ_hd_fixed_size, GNUNET_MQ_hd_var_size, GNUNET_SCHEDULER_shutdown(), GNUNET_SERVICE_MAIN(), GNUNET_SERVICE_OPTION_NONE, GNUNET_MESSENGER_Service::identity, and send_message().

280 {
281  messenger = create_service (config, service);
282 
283  if ((!messenger) || (!messenger->cadet) || (!messenger->identity))
285 }
struct GNUNET_CADET_Handle * cadet
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:531
struct GNUNET_MESSENGER_Service * messenger
struct GNUNET_MESSENGER_Service * create_service(const struct GNUNET_CONFIGURATION_Handle *config, struct GNUNET_SERVICE_Handle *service_handle)
Creates and allocates a new service using a given config and a GNUnet service handle.
struct GNUNET_IDENTITY_Handle * identity
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◆ GNUNET_SERVICE_MAIN()

Define "main" method using service macro.

Referenced by run().

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Variable Documentation

◆ messenger

struct GNUNET_MESSENGER_Service* messenger

Definition at line 37 of file gnunet-service-messenger.c.