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tracker_client.c
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/**
* Copyright (C) 2008 Happy Fish / YuQing
*
* FastDFS may be copied only under the terms of the GNU General
* Public License V3, which may be found in the FastDFS source kit.
* Please visit the FastDFS Home Page http://www.fastken.com/ for more detail.
**/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include "fdfs_define.h"
#include "fastcommon/logger.h"
#include "fastcommon/shared_func.h"
#include "fdfs_global.h"
#include "fastcommon/sockopt.h"
#include "tracker_types.h"
#include "tracker_proto.h"
#include "tracker_client.h"
#include "client_global.h"
int tracker_get_all_connections_ex(TrackerServerGroup *pTrackerGroup)
{
TrackerServerInfo *pServer;
TrackerServerInfo *pEnd;
ConnectionInfo *conn;
int result;
int success_count;
success_count = 0;
pEnd = pTrackerGroup->servers + pTrackerGroup->server_count;
for (pServer=pTrackerGroup->servers; pServer<pEnd; pServer++)
{
if ((conn=tracker_connect_server_no_pool(pServer, &result)) != NULL)
{
fdfs_active_test(conn);
success_count++;
}
}
return success_count > 0 ? 0 : ENOTCONN;
}
void tracker_close_all_connections_ex(TrackerServerGroup *pTrackerGroup)
{
TrackerServerInfo *pServer;
TrackerServerInfo *pEnd;
pEnd = pTrackerGroup->servers + pTrackerGroup->server_count;
for (pServer=pTrackerGroup->servers; pServer<pEnd; pServer++)
{
tracker_disconnect_server_no_pool(pServer);
}
}
ConnectionInfo *tracker_get_connection_ex(TrackerServerGroup *pTrackerGroup)
{
ConnectionInfo *conn;
TrackerServerInfo *pCurrentServer;
TrackerServerInfo *pServer;
TrackerServerInfo *pEnd;
int server_index;
int result;
server_index = pTrackerGroup->server_index;
if (server_index >= pTrackerGroup->server_count)
{
server_index = 0;
}
do
{
pCurrentServer = pTrackerGroup->servers + server_index;
if ((conn=tracker_connect_server(pCurrentServer, &result)) != NULL)
{
break;
}
pEnd = pTrackerGroup->servers + pTrackerGroup->server_count;
for (pServer=pCurrentServer+1; pServer<pEnd; pServer++)
{
if ((conn=tracker_connect_server(pServer, &result)) != NULL)
{
pTrackerGroup->server_index = pServer -
pTrackerGroup->servers;
break;
}
}
if (conn != NULL)
{
break;
}
for (pServer=pTrackerGroup->servers; pServer<pCurrentServer; pServer++)
{
if ((conn=tracker_connect_server(pServer, &result)) != NULL)
{
pTrackerGroup->server_index = pServer -
pTrackerGroup->servers;
break;
}
}
} while (0);
pTrackerGroup->server_index++;
if (pTrackerGroup->server_index >= pTrackerGroup->server_count)
{
pTrackerGroup->server_index = 0;
}
return conn;
}
ConnectionInfo *tracker_get_connection_no_pool(TrackerServerGroup *pTrackerGroup)
{
TrackerServerInfo *pCurrentServer;
TrackerServerInfo *pServer;
TrackerServerInfo *pEnd;
ConnectionInfo *conn;
int server_index;
int result;
server_index = pTrackerGroup->server_index;
if (server_index >= pTrackerGroup->server_count)
{
server_index = 0;
}
conn = NULL;
do
{
pCurrentServer = pTrackerGroup->servers + server_index;
if ((conn=tracker_connect_server_no_pool(pCurrentServer, &result)) != NULL)
{
break;
}
pEnd = pTrackerGroup->servers + pTrackerGroup->server_count;
for (pServer=pCurrentServer+1; pServer<pEnd; pServer++)
{
if ((conn=tracker_connect_server_no_pool(pServer, &result)) != NULL)
{
pTrackerGroup->server_index = pServer - pTrackerGroup->servers;
break;
}
}
if (conn != NULL)
{
break;
}
for (pServer=pTrackerGroup->servers; pServer<pCurrentServer; pServer++)
{
if ((conn=tracker_connect_server_no_pool(pServer, &result)) != NULL)
{
pTrackerGroup->server_index = pServer - pTrackerGroup->servers;
break;
}
}
} while (0);
pTrackerGroup->server_index++;
if (pTrackerGroup->server_index >= pTrackerGroup->server_count)
{
pTrackerGroup->server_index = 0;
}
return conn;
}
ConnectionInfo *tracker_get_connection_r_ex(TrackerServerGroup *pTrackerGroup,
TrackerServerInfo *pTrackerServer, int *err_no)
{
ConnectionInfo *conn;
TrackerServerInfo *pCurrentServer;
TrackerServerInfo *pServer;
TrackerServerInfo *pEnd;
int server_index;
server_index = pTrackerGroup->server_index;
if (server_index >= pTrackerGroup->server_count)
{
server_index = 0;
}
do
{
pCurrentServer = pTrackerGroup->servers + server_index;
memcpy(pTrackerServer, pCurrentServer, sizeof(TrackerServerInfo));
fdfs_server_sock_reset(pTrackerServer);
if ((conn=tracker_connect_server(pTrackerServer, err_no)) != NULL)
{
break;
}
pEnd = pTrackerGroup->servers + pTrackerGroup->server_count;
for (pServer=pCurrentServer+1; pServer<pEnd; pServer++)
{
memcpy(pTrackerServer, pServer, sizeof(TrackerServerInfo));
fdfs_server_sock_reset(pTrackerServer);
if ((conn=tracker_connect_server(pTrackerServer, err_no)) != NULL)
{
pTrackerGroup->server_index = pServer -
pTrackerGroup->servers;
break;
}
}
if (conn != NULL)
{
break;
}
for (pServer=pTrackerGroup->servers; pServer<pCurrentServer; pServer++)
{
memcpy(pTrackerServer, pServer, sizeof(TrackerServerInfo));
fdfs_server_sock_reset(pTrackerServer);
if ((conn=tracker_connect_server(pTrackerServer, err_no)) != NULL)
{
pTrackerGroup->server_index = pServer -
pTrackerGroup->servers;
break;
}
}
} while (0);
pTrackerGroup->server_index++;
if (pTrackerGroup->server_index >= pTrackerGroup->server_count)
{
pTrackerGroup->server_index = 0;
}
return conn;
}
int tracker_list_servers(ConnectionInfo *pTrackerServer, \
const char *szGroupName, const char *szStorageId, \
FDFSStorageInfo *storage_infos, const int max_storages, \
int *storage_count)
{
char out_buff[sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN + \
IP_ADDRESS_SIZE];
bool new_connection;
TrackerHeader *pHeader;
ConnectionInfo *conn;
int result;
int name_len;
int id_len;
TrackerStorageStat stats[FDFS_MAX_GROUPS];
char *pInBuff;
TrackerStorageStat *pSrc;
TrackerStorageStat *pEnd;
FDFSStorageStat *pStorageStat;
FDFSStorageInfo *pDest;
FDFSStorageStatBuff *pStatBuff;
int64_t in_bytes;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(out_buff, 0, sizeof(out_buff));
pHeader = (TrackerHeader *)out_buff;
name_len = strlen(szGroupName);
if (name_len > FDFS_GROUP_NAME_MAX_LEN)
{
name_len = FDFS_GROUP_NAME_MAX_LEN;
}
memcpy(out_buff + sizeof(TrackerHeader), szGroupName, name_len);
if (szStorageId == NULL)
{
id_len = 0;
}
else
{
id_len = strlen(szStorageId);
if (id_len >= FDFS_STORAGE_ID_MAX_SIZE)
{
id_len = FDFS_STORAGE_ID_MAX_SIZE - 1;
}
memcpy(out_buff+sizeof(TrackerHeader)+FDFS_GROUP_NAME_MAX_LEN,\
szStorageId, id_len);
}
long2buff(FDFS_GROUP_NAME_MAX_LEN + id_len, pHeader->pkg_len);
pHeader->cmd = TRACKER_PROTO_CMD_SERVER_LIST_STORAGE;
if ((result=tcpsenddata_nb(conn->sock, out_buff, \
sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN + id_len, \
g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = (char *)stats;
result = fdfs_recv_response(conn, &pInBuff, \
sizeof(stats), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
*storage_count = 0;
return result;
}
if (in_bytes % sizeof(TrackerStorageStat) != 0)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, in_bytes);
*storage_count = 0;
return EINVAL;
}
*storage_count = in_bytes / sizeof(TrackerStorageStat);
if (*storage_count > max_storages)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d insufficent space, " \
"max storage count: %d, expect count: %d", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, max_storages, *storage_count);
*storage_count = 0;
return ENOSPC;
}
memset(storage_infos, 0, sizeof(FDFSStorageInfo) * max_storages);
pDest = storage_infos;
pEnd = stats + (*storage_count);
for (pSrc=stats; pSrc<pEnd; pSrc++)
{
pStatBuff = &(pSrc->stat_buff);
pStorageStat = &(pDest->stat);
pDest->status = pSrc->status;
memcpy(pDest->id, pSrc->id, FDFS_STORAGE_ID_MAX_SIZE - 1);
memcpy(pDest->ip_addr, pSrc->ip_addr, IP_ADDRESS_SIZE - 1);
memcpy(pDest->src_id, pSrc->src_id, \
FDFS_STORAGE_ID_MAX_SIZE - 1);
strcpy(pDest->domain_name, pSrc->domain_name);
strcpy(pDest->version, pSrc->version);
pDest->join_time = buff2long(pSrc->sz_join_time);
pDest->up_time = buff2long(pSrc->sz_up_time);
pDest->total_mb = buff2long(pSrc->sz_total_mb);
pDest->free_mb = buff2long(pSrc->sz_free_mb);
pDest->upload_priority = buff2long(pSrc->sz_upload_priority);
pDest->store_path_count = buff2long(pSrc->sz_store_path_count);
pDest->subdir_count_per_path = buff2long( \
pSrc->sz_subdir_count_per_path);
pDest->storage_port = buff2long(pSrc->sz_storage_port);
pDest->storage_http_port = buff2long(pSrc->sz_storage_http_port);
pDest->current_write_path = buff2long( \
pSrc->sz_current_write_path);
pStorageStat->connection.alloc_count = buff2int( \
pStatBuff->connection.sz_alloc_count);
pStorageStat->connection.current_count = buff2int( \
pStatBuff->connection.sz_current_count);
pStorageStat->connection.max_count = buff2int( \
pStatBuff->connection.sz_max_count);
pStorageStat->total_upload_count = buff2long( \
pStatBuff->sz_total_upload_count);
pStorageStat->success_upload_count = buff2long( \
pStatBuff->sz_success_upload_count);
pStorageStat->total_append_count = buff2long( \
pStatBuff->sz_total_append_count);
pStorageStat->success_append_count = buff2long( \
pStatBuff->sz_success_append_count);
pStorageStat->total_modify_count = buff2long( \
pStatBuff->sz_total_modify_count);
pStorageStat->success_modify_count = buff2long( \
pStatBuff->sz_success_modify_count);
pStorageStat->total_truncate_count = buff2long( \
pStatBuff->sz_total_truncate_count);
pStorageStat->success_truncate_count = buff2long( \
pStatBuff->sz_success_truncate_count);
pStorageStat->total_set_meta_count = buff2long( \
pStatBuff->sz_total_set_meta_count);
pStorageStat->success_set_meta_count = buff2long( \
pStatBuff->sz_success_set_meta_count);
pStorageStat->total_delete_count = buff2long( \
pStatBuff->sz_total_delete_count);
pStorageStat->success_delete_count = buff2long( \
pStatBuff->sz_success_delete_count);
pStorageStat->total_download_count = buff2long( \
pStatBuff->sz_total_download_count);
pStorageStat->success_download_count = buff2long( \
pStatBuff->sz_success_download_count);
pStorageStat->total_get_meta_count = buff2long( \
pStatBuff->sz_total_get_meta_count);
pStorageStat->success_get_meta_count = buff2long( \
pStatBuff->sz_success_get_meta_count);
pStorageStat->last_source_update = buff2long( \
pStatBuff->sz_last_source_update);
pStorageStat->last_sync_update = buff2long( \
pStatBuff->sz_last_sync_update);
pStorageStat->last_synced_timestamp = buff2long( \
pStatBuff->sz_last_synced_timestamp);
pStorageStat->total_create_link_count = buff2long( \
pStatBuff->sz_total_create_link_count);
pStorageStat->success_create_link_count = buff2long( \
pStatBuff->sz_success_create_link_count);
pStorageStat->total_delete_link_count = buff2long( \
pStatBuff->sz_total_delete_link_count);
pStorageStat->success_delete_link_count = buff2long( \
pStatBuff->sz_success_delete_link_count);
pStorageStat->total_upload_bytes = buff2long( \
pStatBuff->sz_total_upload_bytes);
pStorageStat->success_upload_bytes = buff2long( \
pStatBuff->sz_success_upload_bytes);
pStorageStat->total_append_bytes = buff2long( \
pStatBuff->sz_total_append_bytes);
pStorageStat->success_append_bytes = buff2long( \
pStatBuff->sz_success_append_bytes);
pStorageStat->total_modify_bytes = buff2long( \
pStatBuff->sz_total_modify_bytes);
pStorageStat->success_modify_bytes = buff2long( \
pStatBuff->sz_success_modify_bytes);
pStorageStat->total_download_bytes = buff2long( \
pStatBuff->sz_total_download_bytes);
pStorageStat->success_download_bytes = buff2long( \
pStatBuff->sz_success_download_bytes);
pStorageStat->total_sync_in_bytes = buff2long( \
pStatBuff->sz_total_sync_in_bytes);
pStorageStat->success_sync_in_bytes = buff2long( \
pStatBuff->sz_success_sync_in_bytes);
pStorageStat->total_sync_out_bytes = buff2long( \
pStatBuff->sz_total_sync_out_bytes);
pStorageStat->success_sync_out_bytes = buff2long( \
pStatBuff->sz_success_sync_out_bytes);
pStorageStat->total_file_open_count = buff2long( \
pStatBuff->sz_total_file_open_count);
pStorageStat->success_file_open_count = buff2long( \
pStatBuff->sz_success_file_open_count);
pStorageStat->total_file_read_count = buff2long( \
pStatBuff->sz_total_file_read_count);
pStorageStat->success_file_read_count = buff2long( \
pStatBuff->sz_success_file_read_count);
pStorageStat->total_file_write_count = buff2long( \
pStatBuff->sz_total_file_write_count);
pStorageStat->success_file_write_count = buff2long( \
pStatBuff->sz_success_file_write_count);
pStorageStat->last_heart_beat_time = buff2long( \
pStatBuff->sz_last_heart_beat_time);
pDest->if_trunk_server = pSrc->if_trunk_server;
pDest++;
}
return 0;
}
int tracker_list_one_group(ConnectionInfo *pTrackerServer, \
const char *group_name, FDFSGroupStat *pDest)
{
TrackerHeader *pHeader;
ConnectionInfo *conn;
bool new_connection;
char out_buff[sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN];
TrackerGroupStat src;
char *pInBuff;
int result;
int64_t in_bytes;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(out_buff, 0, sizeof(out_buff));
pHeader = (TrackerHeader *)out_buff;
snprintf(out_buff + sizeof(TrackerHeader), sizeof(out_buff) - \
sizeof(TrackerHeader), "%s", group_name);
pHeader->cmd = TRACKER_PROTO_CMD_SERVER_LIST_ONE_GROUP;
long2buff(FDFS_GROUP_NAME_MAX_LEN, pHeader->pkg_len);
if ((result=tcpsenddata_nb(conn->sock, out_buff, \
sizeof(out_buff), g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = (char *)&src;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(TrackerGroupStat), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
return result;
}
if (in_bytes != sizeof(TrackerGroupStat))
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, in_bytes);
return EINVAL;
}
memset(pDest, 0, sizeof(FDFSGroupStat));
memcpy(pDest->group_name, src.group_name, FDFS_GROUP_NAME_MAX_LEN);
pDest->total_mb = buff2long(src.sz_total_mb);
pDest->free_mb = buff2long(src.sz_free_mb);
pDest->trunk_free_mb = buff2long(src.sz_trunk_free_mb);
pDest->count= buff2long(src.sz_count);
pDest->storage_port= buff2long(src.sz_storage_port);
pDest->storage_http_port= buff2long(src.sz_storage_http_port);
pDest->active_count = buff2long(src.sz_active_count);
pDest->current_write_server = buff2long(src.sz_current_write_server);
pDest->store_path_count = buff2long(src.sz_store_path_count);
pDest->subdir_count_per_path = buff2long(src.sz_subdir_count_per_path);
pDest->current_trunk_file_id = buff2long(src.sz_current_trunk_file_id);
return 0;
}
int tracker_list_groups(ConnectionInfo *pTrackerServer, \
FDFSGroupStat *group_stats, const int max_groups, \
int *group_count)
{
bool new_connection;
TrackerHeader header;
TrackerGroupStat stats[FDFS_MAX_GROUPS];
char *pInBuff;
ConnectionInfo *conn;
TrackerGroupStat *pSrc;
TrackerGroupStat *pEnd;
FDFSGroupStat *pDest;
int result;
int64_t in_bytes;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(&header, 0, sizeof(header));
header.cmd = TRACKER_PROTO_CMD_SERVER_LIST_ALL_GROUPS;
header.status = 0;
if ((result=tcpsenddata_nb(conn->sock, &header, \
sizeof(header), g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = (char *)stats;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(stats), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
*group_count = 0;
return result;
}
if (in_bytes % sizeof(TrackerGroupStat) != 0)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, in_bytes);
*group_count = 0;
return EINVAL;
}
*group_count = in_bytes / sizeof(TrackerGroupStat);
if (*group_count > max_groups)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d insufficent space, " \
"max group count: %d, expect count: %d", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, max_groups, *group_count);
*group_count = 0;
return ENOSPC;
}
memset(group_stats, 0, sizeof(FDFSGroupStat) * max_groups);
pDest = group_stats;
pEnd = stats + (*group_count);
for (pSrc=stats; pSrc<pEnd; pSrc++)
{
memcpy(pDest->group_name, pSrc->group_name, \
FDFS_GROUP_NAME_MAX_LEN);
pDest->total_mb = buff2long(pSrc->sz_total_mb);
pDest->free_mb = buff2long(pSrc->sz_free_mb);
pDest->trunk_free_mb = buff2long(pSrc->sz_trunk_free_mb);
pDest->count= buff2long(pSrc->sz_count);
pDest->storage_port= buff2long(pSrc->sz_storage_port);
pDest->storage_http_port= buff2long(pSrc->sz_storage_http_port);
pDest->active_count = buff2long(pSrc->sz_active_count);
pDest->current_write_server = buff2long( \
pSrc->sz_current_write_server);
pDest->store_path_count = buff2long( \
pSrc->sz_store_path_count);
pDest->subdir_count_per_path = buff2long( \
pSrc->sz_subdir_count_per_path);
pDest->current_trunk_file_id = buff2long( \
pSrc->sz_current_trunk_file_id);
pDest++;
}
return 0;
}
int tracker_do_query_storage(ConnectionInfo *pTrackerServer, \
ConnectionInfo *pStorageServer, const byte cmd, \
const char *group_name, const char *filename)
{
TrackerHeader *pHeader;
ConnectionInfo *conn;
bool new_connection;
char out_buff[sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN + 128];
char in_buff[sizeof(TrackerHeader) + TRACKER_QUERY_STORAGE_FETCH_BODY_LEN];
char *pInBuff;
int64_t in_bytes;
int result;
int filename_len;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(pStorageServer, 0, sizeof(ConnectionInfo));
pStorageServer->sock = -1;
memset(out_buff, 0, sizeof(out_buff));
pHeader = (TrackerHeader *)out_buff;
snprintf(out_buff + sizeof(TrackerHeader), sizeof(out_buff) - \
sizeof(TrackerHeader), "%s", group_name);
filename_len = snprintf(out_buff + sizeof(TrackerHeader) + \
FDFS_GROUP_NAME_MAX_LEN, \
sizeof(out_buff) - sizeof(TrackerHeader) - \
FDFS_GROUP_NAME_MAX_LEN, "%s", filename);
long2buff(FDFS_GROUP_NAME_MAX_LEN + filename_len, pHeader->pkg_len);
pHeader->cmd = cmd;
if ((result=tcpsenddata_nb(conn->sock, out_buff, \
sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN +
filename_len, g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = in_buff;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(in_buff), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
return result;
}
if (in_bytes != TRACKER_QUERY_STORAGE_FETCH_BODY_LEN)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid, " \
"expect length: %d", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, in_bytes, \
TRACKER_QUERY_STORAGE_FETCH_BODY_LEN);
return EINVAL;
}
memcpy(pStorageServer->ip_addr, in_buff + \
FDFS_GROUP_NAME_MAX_LEN, IP_ADDRESS_SIZE-1);
pStorageServer->port = (int)buff2long(in_buff + \
FDFS_GROUP_NAME_MAX_LEN + IP_ADDRESS_SIZE - 1);
return 0;
}
int tracker_query_storage_list(ConnectionInfo *pTrackerServer, \
ConnectionInfo *pStorageServer, const int nMaxServerCount, \
int *server_count, char *group_name, const char *filename)
{
TrackerHeader *pHeader;
ConnectionInfo *pServer;
ConnectionInfo *pServerEnd;
ConnectionInfo *conn;
bool new_connection;
char out_buff[sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN + 128];
char in_buff[sizeof(TrackerHeader) + \
TRACKER_QUERY_STORAGE_FETCH_BODY_LEN + \
FDFS_MAX_SERVERS_EACH_GROUP * IP_ADDRESS_SIZE];
char *pInBuff;
int64_t in_bytes;
int result;
int filename_len;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(out_buff, 0, sizeof(out_buff));
pHeader = (TrackerHeader *)out_buff;
snprintf(out_buff + sizeof(TrackerHeader), sizeof(out_buff) - \
sizeof(TrackerHeader), "%s", group_name);
filename_len = snprintf(out_buff + sizeof(TrackerHeader) + \
FDFS_GROUP_NAME_MAX_LEN, \
sizeof(out_buff) - sizeof(TrackerHeader) - \
FDFS_GROUP_NAME_MAX_LEN, "%s", filename);
long2buff(FDFS_GROUP_NAME_MAX_LEN + filename_len, pHeader->pkg_len);
pHeader->cmd = TRACKER_PROTO_CMD_SERVICE_QUERY_FETCH_ALL;
if ((result=tcpsenddata_nb(conn->sock, out_buff, \
sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN +
filename_len, g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = in_buff;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(in_buff), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
return result;
}
if ((in_bytes - TRACKER_QUERY_STORAGE_FETCH_BODY_LEN) % \
(IP_ADDRESS_SIZE - 1) != 0)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid", \
__LINE__, pTrackerServer->ip_addr, \
pTrackerServer->port, in_bytes);
return EINVAL;
}
*server_count = 1 + (in_bytes - TRACKER_QUERY_STORAGE_FETCH_BODY_LEN) /
(IP_ADDRESS_SIZE - 1);
if (nMaxServerCount < *server_count)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response storage server " \
"count: %d, exceeds max server count: %d!", __LINE__, \
pTrackerServer->ip_addr, pTrackerServer->port, \
*server_count, nMaxServerCount);
return ENOSPC;
}
memset(pStorageServer, 0, nMaxServerCount * sizeof(ConnectionInfo));
pStorageServer->sock = -1;
memcpy(group_name, pInBuff, FDFS_GROUP_NAME_MAX_LEN);
*(group_name + FDFS_GROUP_NAME_MAX_LEN) = '\0';
pInBuff += FDFS_GROUP_NAME_MAX_LEN;
memcpy(pStorageServer->ip_addr, pInBuff, IP_ADDRESS_SIZE - 1);
pInBuff += IP_ADDRESS_SIZE - 1;
pStorageServer->port = (int)buff2long(pInBuff);
pInBuff += FDFS_PROTO_PKG_LEN_SIZE;
pServerEnd = pStorageServer + (*server_count);
for (pServer=pStorageServer+1; pServer<pServerEnd; pServer++)
{
pServer->sock = -1;
pServer->port = pStorageServer->port;
memcpy(pServer->ip_addr, pInBuff, IP_ADDRESS_SIZE - 1);
pInBuff += IP_ADDRESS_SIZE - 1;
}
return 0;
}
int tracker_query_storage_store_without_group(ConnectionInfo *pTrackerServer,
ConnectionInfo *pStorageServer, char *group_name,
int *store_path_index)
{
TrackerHeader header;
char in_buff[sizeof(TrackerHeader) + \
TRACKER_QUERY_STORAGE_STORE_BODY_LEN];
bool new_connection;
ConnectionInfo *conn;
char *pInBuff;
int64_t in_bytes;
int result;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(pStorageServer, 0, sizeof(ConnectionInfo));
pStorageServer->sock = -1;
memset(&header, 0, sizeof(header));
header.cmd = TRACKER_PROTO_CMD_SERVICE_QUERY_STORE_WITHOUT_GROUP_ONE;
if ((result=tcpsenddata_nb(conn->sock, &header, \
sizeof(header), g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = in_buff;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(in_buff), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
return result;
}
if (in_bytes != TRACKER_QUERY_STORAGE_STORE_BODY_LEN)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid, " \
"expect length: %d", __LINE__, \
pTrackerServer->ip_addr, pTrackerServer->port, \
in_bytes, TRACKER_QUERY_STORAGE_STORE_BODY_LEN);
return EINVAL;
}
memcpy(group_name, in_buff, FDFS_GROUP_NAME_MAX_LEN);
*(group_name + FDFS_GROUP_NAME_MAX_LEN) = '\0';
memcpy(pStorageServer->ip_addr, in_buff + \
FDFS_GROUP_NAME_MAX_LEN, IP_ADDRESS_SIZE-1);
pStorageServer->port = (int)buff2long(in_buff + \
FDFS_GROUP_NAME_MAX_LEN + IP_ADDRESS_SIZE - 1);
*store_path_index = *(in_buff + FDFS_GROUP_NAME_MAX_LEN + \
IP_ADDRESS_SIZE - 1 + FDFS_PROTO_PKG_LEN_SIZE);
return 0;
}
int tracker_query_storage_store_with_group(ConnectionInfo *pTrackerServer, \
const char *group_name, ConnectionInfo *pStorageServer, \
int *store_path_index)
{
TrackerHeader *pHeader;
ConnectionInfo *conn;
bool new_connection;
char out_buff[sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN];
char in_buff[sizeof(TrackerHeader) + \
TRACKER_QUERY_STORAGE_STORE_BODY_LEN];
char *pInBuff;
int64_t in_bytes;
int result;
CHECK_CONNECTION(pTrackerServer, conn, result, new_connection);
memset(pStorageServer, 0, sizeof(ConnectionInfo));
pStorageServer->sock = -1;
pHeader = (TrackerHeader *)out_buff;
memset(out_buff, 0, sizeof(out_buff));
snprintf(out_buff + sizeof(TrackerHeader), sizeof(out_buff) - \
sizeof(TrackerHeader), "%s", group_name);
long2buff(FDFS_GROUP_NAME_MAX_LEN, pHeader->pkg_len);
pHeader->cmd = TRACKER_PROTO_CMD_SERVICE_QUERY_STORE_WITH_GROUP_ONE;
if ((result=tcpsenddata_nb(conn->sock, out_buff, \
sizeof(TrackerHeader) + FDFS_GROUP_NAME_MAX_LEN, \
g_fdfs_network_timeout)) != 0)
{
logError("file: "__FILE__", line: %d, " \
"send data to tracker server %s:%d fail, " \
"errno: %d, error info: %s", __LINE__, \
pTrackerServer->ip_addr, \
pTrackerServer->port, \
result, STRERROR(result));
}
else
{
pInBuff = in_buff;
result = fdfs_recv_response(conn, \
&pInBuff, sizeof(in_buff), &in_bytes);
if (result != 0)
{
logError("file: "__FILE__", line: %d, "
"fdfs_recv_response fail, result: %d",
__LINE__, result);
}
}
if (new_connection)
{
tracker_close_connection_ex(conn, result != 0);
}
if (result != 0)
{
return result;
}
if (in_bytes != TRACKER_QUERY_STORAGE_STORE_BODY_LEN)
{
logError("file: "__FILE__", line: %d, " \
"tracker server %s:%d response data " \
"length: %"PRId64" is invalid, " \