src/bin/lttng-relayd/cmd-2-2.c

   1 /*
   2  * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com>
   3  *                      David Goulet <dgoulet@efficios.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License, version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 51
  16  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #define _GNU_SOURCE
  20 #include <assert.h>
  21 #include <string.h>
  22
  23 #include <common/common.h>
  24 #include <common/sessiond-comm/relayd.h>
  25
  26 #include "cmd-generic.h"
  27 #include "cmd-2-1.h"
  28 #include "utils.h"
  29
  30 int cmd_recv_stream_2_2(struct relay_connection *conn,
  31                 struct relay_stream *stream)
  32 {
  33         int ret;
  34         struct lttcomm_relayd_add_stream_2_2 stream_info;
  35
  36         assert(conn);
  37         assert(stream);
  38
  39         ret = cmd_recv(conn->sock, &stream_info, sizeof(stream_info));
  40         if (ret < 0) {
  41                 ERR("Unable to recv stream version 2.2");
  42                 goto error;
  43         }
  44
  45         stream->path_name = create_output_path(stream_info.pathname);
  46         if (stream->path_name == NULL) {
  47                 PERROR("Path name allocation");
  48                 ret = -ENOMEM;
  49                 goto error;
  50         }
  51
  52         stream->channel_name = strdup(stream_info.channel_name);
  53         if (stream->channel_name == NULL) {
  54                 ret = -errno;
  55                 PERROR("Path name allocation");
  56                 goto error;
  57         }
  58
  59         stream->tracefile_size = be64toh(stream_info.tracefile_size);
  60         stream->tracefile_count = be64toh(stream_info.tracefile_count);
  61         ret = 0;
  62
  63 error:
  64         return ret;
  65 }