* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
* Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; only version 2 of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _GNU_SOURCE
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_VERSION) ] = "Kernel tracer version is not compatible",
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_EVENT_EXIST) ] = "Kernel event already exists",
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_SESS_FAIL) ] = "Kernel create session failed",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_EXIST) ] = "Kernel channel already exists",
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_FAIL) ] = "Kernel create channel failed",
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_NOT_FOUND) ] = "Kernel channel not found",
[ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_CHAN_DISABLE_FAIL) ] = "Disable kernel channel failed",
[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_EVENT_NOT_FOUND)] = "UST event not found",
[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_CONTEXT_EXIST)] = "UST context already exist",
[ LTTCOMM_ERR_INDEX(LTTCOMM_UST_CONTEXT_INVAL)] = "UST invalid context",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_NEED_ROOT_SESSIOND) ] = "Tracing the kernel requires a root lttng-sessiond daemon and \"tracing\" group user membership",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_TRACE_ALREADY_STARTED) ] = "Tracing already started",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_TRACE_ALREADY_STOPPED) ] = "Tracing already stopped",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_KERN_EVENT_ENOSYS) ] = "Kernel event type not supported",
+
[ LTTCOMM_ERR_INDEX(CONSUMERD_COMMAND_SOCK_READY) ] = "consumerd command socket ready",
[ LTTCOMM_ERR_INDEX(CONSUMERD_SUCCESS_RECV_FD) ] = "consumerd success on receiving fds",
[ LTTCOMM_ERR_INDEX(CONSUMERD_ERROR_RECV_FD) ] = "consumerd error on receiving fds",
[ LTTCOMM_ERR_INDEX(CONSUMERD_SPLICE_ENOMEM) ] = "consumerd splice ENOMEM",
[ LTTCOMM_ERR_INDEX(CONSUMERD_SPLICE_ESPIPE) ] = "consumerd splice ESPIPE",
[ LTTCOMM_ERR_INDEX(LTTCOMM_NO_EVENT) ] = "Event not found",
+ [ LTTCOMM_ERR_INDEX(LTTCOMM_INVALID) ] = "Invalid parameter",
};
/*
msg.msg_iov = iov;
msg.msg_iovlen = 1;
- ret = recvmsg(sock, &msg, MSG_WAITALL);
+ do {
+ ret = recvmsg(sock, &msg, MSG_WAITALL);
+ } while (ret < 0 && errno == EINTR);
if (ret < 0) {
PERROR("recvmsg");
}
ret = sendmsg(sock, &msg, 0);
if (ret < 0) {
- PERROR("sendmsg");
+ /*
+ * Only warn about EPIPE when quiet mode is deactivated.
+ * We consider EPIPE as expected.
+ */
+ if (errno != EPIPE || !lttng_opt_quiet) {
+ PERROR("sendmsg");
+ }
}
return ret;
msg.msg_iov = iov;
msg.msg_iovlen = 1;
- ret = sendmsg(sock, &msg, 0);
+ do {
+ ret = sendmsg(sock, &msg, 0);
+ } while (ret < 0 && errno == EINTR);
if (ret < 0) {
- PERROR("sendmsg");
+ /*
+ * Only warn about EPIPE when quiet mode is deactivated.
+ * We consider EPIPE as expected.
+ */
+ if (errno != EPIPE || !lttng_opt_quiet) {
+ PERROR("sendmsg");
+ }
}
return ret;
}
msg.msg_control = recv_fd;
msg.msg_controllen = sizeof(recv_fd);
- ret = recvmsg(sock, &msg, 0);
+ do {
+ ret = recvmsg(sock, &msg, 0);
+ } while (ret < 0 && errno == EINTR);
if (ret < 0) {
PERROR("recvmsg fds");
goto end;
LTTNG_SOCK_SET_PID_CRED(creds, getpid());
#endif /* __linux__ */
- ret = sendmsg(sock, &msg, 0);
+ do {
+ ret = sendmsg(sock, &msg, 0);
+ } while (ret < 0 && errno == EINTR);
if (ret < 0) {
- PERROR("sendmsg");
+ /*
+ * Only warn about EPIPE when quiet mode is deactivated.
+ * We consider EPIPE as expected.
+ */
+ if (errno != EPIPE || !lttng_opt_quiet) {
+ PERROR("sendmsg");
+ }
}
-
return ret;
}
msg.msg_controllen = sizeof(anc_buf);
#endif /* __linux__ */
- ret = recvmsg(sock, &msg, 0);
+ do {
+ ret = recvmsg(sock, &msg, 0);
+ } while (ret < 0 && errno == EINTR);
if (ret < 0) {
PERROR("recvmsg fds");
goto end;