gnunet-service-messenger_message_state.h File Reference

GNUnet MESSENGER service. More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "messenger_api_message.h"
#include "gnunet-service-messenger_list_messages.h"

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Data Structures
struct	GNUNET_MESSENGER_MessageState

Functions
void	init_message_state (struct GNUNET_MESSENGER_MessageState *state)
void	clear_message_state (struct GNUNET_MESSENGER_MessageState *state)
void	get_message_state_chain_hash (const struct GNUNET_MESSENGER_MessageState *state, struct GNUNET_HashCode *hash)
const struct GNUNET_HashCode *	get_message_state_merge_hash (const struct GNUNET_MESSENGER_MessageState *state)
void	update_message_state (struct GNUNET_MESSENGER_MessageState *state, int requested, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
void	load_message_state (struct GNUNET_MESSENGER_MessageState *state, const char *path)
void	save_message_state (const struct GNUNET_MESSENGER_MessageState *state, const char *path)

Detailed Description

GNUnet MESSENGER service.

Author

Tobias Frisch

Definition in file gnunet-service-messenger_message_state.h.

Function Documentation

init_message_state()

void init_message_state

(

struct GNUNET_MESSENGER_MessageState *

state

)

Definition at line 30 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert(state);
 
  init_list_messages (&(state->last_messages));
}

References GNUNET_assert, init_list_messages(), and state.

Referenced by create_srv_room(), and create_tunnel().

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clear_message_state()

void clear_message_state

(

struct GNUNET_MESSENGER_MessageState *

state

)

Definition at line 38 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert(state);
 
  clear_list_messages (&(state->last_messages));
}

References clear_list_messages(), GNUNET_assert, and state.

Referenced by destroy_srv_room(), and destroy_tunnel().

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get_message_state_chain_hash()

void get_message_state_chain_hash	(	const struct GNUNET_MESSENGER_MessageState *	state,
		struct GNUNET_HashCode *	hash
	)

Definition at line 46 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert((state) && (hash));
 
  if (state->last_messages.head)
    GNUNET_memcpy(hash, &(state->last_messages.head->hash), sizeof(*hash));
  else
    memset (hash, 0, sizeof(*hash));
}

References GNUNET_assert, GNUNET_memcpy, and state.

Referenced by pack_srv_room_message().

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get_message_state_merge_hash()

const struct GNUNET_HashCode* get_message_state_merge_hash

(

const struct GNUNET_MESSENGER_MessageState *

state

)

Definition at line 58 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert(state);
 
  if (state->last_messages.head == state->last_messages.tail)
    return NULL;
 
  return &(state->last_messages.tail->hash);
}

References GNUNET_assert, and state.

Referenced by idle_request_room_messages(), and merge_srv_room_last_messages().

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update_message_state()

void update_message_state	(	struct GNUNET_MESSENGER_MessageState *	state,
		int	requested,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Definition at line 69 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert((state) && (message) && (hash));
 
  if ((GNUNET_YES == requested) ||
      (GNUNET_MESSENGER_KIND_INFO == message->header.kind) ||
      (GNUNET_MESSENGER_KIND_REQUEST == message->header.kind))
    return;
 
  if (GNUNET_MESSENGER_KIND_MERGE == message->header.kind)
    remove_from_list_messages(&(state->last_messages), &(message->body.merge.previous));
  remove_from_list_messages(&(state->last_messages), &(message->header.previous));
 
  add_to_list_messages (&(state->last_messages), hash);
}

References add_to_list_messages(), GNUNET_MESSENGER_Message::body, GNUNET_assert, GNUNET_MESSENGER_KIND_INFO, GNUNET_MESSENGER_KIND_MERGE, GNUNET_MESSENGER_KIND_REQUEST, GNUNET_YES, GNUNET_MESSENGER_Message::header, GNUNET_MESSENGER_MessageHeader::kind, GNUNET_MESSENGER_MessageBody::merge, GNUNET_MESSENGER_MessageHeader::previous, GNUNET_MESSENGER_MessageMerge::previous, remove_from_list_messages(), and state.

Referenced by update_room_message(), and update_tunnel_last_message().

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load_message_state()

void load_message_state	(	struct GNUNET_MESSENGER_MessageState *	state,
		const char *	path
	)

Definition at line 89 of file gnunet-service-messenger_message_state.c.

{
  GNUNET_assert((state) && (path));
 
  char *last_messages_file;
  GNUNET_asprintf (&last_messages_file, "%s%s", path, "last_messages.list");
 
  load_list_messages(&(state->last_messages), last_messages_file);
  GNUNET_free(last_messages_file);
}

References GNUNET_asprintf(), GNUNET_assert, GNUNET_free, load_list_messages(), and state.

Referenced by load_srv_room().

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save_message_state()

void save_message_state	(	const struct GNUNET_MESSENGER_MessageState *	state,
		const char *	path
	)

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

{
  GNUNET_assert((state) && (path));
 
  char *last_messages_file;
  GNUNET_asprintf (&last_messages_file, "%s%s", path, "last_messages.list");
 
  save_list_messages(&(state->last_messages), last_messages_file);
  GNUNET_free(last_messages_file);
}

References GNUNET_asprintf(), GNUNET_assert, GNUNET_free, save_list_messages(), and state.

Referenced by save_srv_room().

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