| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; only version 2 |
| 7 | * of the License. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #define _GNU_SOURCE |
| 20 | #include <stdlib.h> |
| 21 | #include <stdio.h> |
| 22 | #include <string.h> |
| 23 | #include <unistd.h> |
| 24 | |
| 25 | #include <lttng-sessiond-comm.h> |
| 26 | #include <lttngerr.h> |
| 27 | |
| 28 | #include "ust-comm.h" |
| 29 | #include "ust-ctl.h" |
| 30 | |
| 31 | /* |
| 32 | * Send registration done packet to the application. |
| 33 | */ |
| 34 | int ustctl_register_done(int sock) |
| 35 | { |
| 36 | struct lttcomm_ust_msg command; |
| 37 | struct lttcomm_ust_reply *reply; |
| 38 | |
| 39 | DBG("Sending register done command to %d", sock); |
| 40 | |
| 41 | command.cmd = LTTNG_UST_REGISTER_DONE; |
| 42 | command.handle = LTTNG_UST_ROOT_HANDLE; |
| 43 | |
| 44 | reply = ustcomm_send_command(sock, &command); |
| 45 | if (reply == NULL) { |
| 46 | goto error; |
| 47 | } |
| 48 | |
| 49 | if (reply->ret_code != LTTCOMM_OK) { |
| 50 | DBG("Return code: %s", lttcomm_get_readable_code(reply->ret_code)); |
| 51 | goto error; |
| 52 | } |
| 53 | |
| 54 | return 0; |
| 55 | |
| 56 | error: |
| 57 | return -1; |
| 58 | } |
| 59 | |
| 60 | /* |
| 61 | * Create an UST session on the tracer. |
| 62 | */ |
| 63 | int ustctl_create_session(struct ltt_ust_session *session) |
| 64 | { |
| 65 | struct lttcomm_ust_msg command; |
| 66 | struct lttcomm_ust_reply *reply; |
| 67 | |
| 68 | DBG("Creating UST session for app pid:%d", session->app->pid); |
| 69 | |
| 70 | command.cmd = LTTNG_UST_SESSION; |
| 71 | command.handle = LTTNG_UST_ROOT_HANDLE; |
| 72 | |
| 73 | reply = ustcomm_send_command(session->app->sock, &command); |
| 74 | if (reply == NULL) { |
| 75 | goto error; |
| 76 | } |
| 77 | |
| 78 | if (reply->ret_code != LTTCOMM_OK) { |
| 79 | DBG("Return code: %s", lttcomm_get_readable_code(reply->ret_code)); |
| 80 | goto error; |
| 81 | } |
| 82 | |
| 83 | /* Save session handle */ |
| 84 | session->handle = reply->handle; |
| 85 | |
| 86 | return 0; |
| 87 | |
| 88 | error: |
| 89 | return -1; |
| 90 | } |