Clean-up: modernize pretty_xml.cpp

[lttng-tools.git] / src / bin / lttng-sessiond / thread-utils.c

diff --git a/src/bin/lttng-sessiond/thread-utils.c b/src/bin/lttng-sessiond/thread-utils.c
deleted file mode 100644 (file)
index 60d4c27..0000000
--- a/src/bin/lttng-sessiond/thread-utils.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *               2013 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "lttng-sessiond.h"
-#include "utils.h"
-#include <common/utils.h>
-#include <pthread.h>
-
-/*
- * Quit pipe for all threads. This permits a single cancellation point
- * for all threads when receiving an event on the pipe.
- */
-static int thread_quit_pipe[2] = { -1, -1 };
-
-/*
- * Init thread quit pipe.
- *
- * Return -1 on error or 0 if all pipes are created.
- */
-static int __init_thread_quit_pipe(int *a_pipe)
-{
-       int ret, i;
-
-       ret = pipe(a_pipe);
-       if (ret < 0) {
-               PERROR("thread quit pipe");
-               goto error;
-       }
-
-       for (i = 0; i < 2; i++) {
-               ret = fcntl(a_pipe[i], F_SETFD, FD_CLOEXEC);
-               if (ret < 0) {
-                       PERROR("fcntl");
-                       goto error;
-               }
-       }
-
-error:
-       return ret;
-}
-
-int sessiond_init_thread_quit_pipe(void)
-{
-       return __init_thread_quit_pipe(thread_quit_pipe);
-}
-
-int sessiond_check_thread_quit_pipe(int fd, uint32_t events)
-{
-       return (fd == thread_quit_pipe[0] && (events & LPOLLIN));
-}
-
-/*
- * Wait for a notification on the quit pipe (with a timeout).
- *
- * A timeout value of -1U means no timeout.
- *
- * Returns 1 if the caller should quit, 0 if the timeout was reached, and
- * -1 if an error was encountered.
- */
-int sessiond_wait_for_quit_pipe(int timeout_ms)
-{
-       int ret;
-       struct lttng_poll_event events;
-
-       ret = lttng_poll_create(&events, 1, LTTNG_CLOEXEC);
-       if (ret < 0) {
-               PERROR("Failed to initialize poll/epoll set");
-               ret = -1;
-               goto end;
-       }
-       ret = lttng_poll_add(&events, thread_quit_pipe[0], LPOLLIN | LPOLLERR);
-       if (ret < 0) {
-               PERROR("Failed to add file descriptor to poll/epoll set");
-               ret = -1;
-               goto end_clean_poll;
-       }
-       ret = lttng_poll_wait(&events, timeout_ms);
-       if (ret > 0) {
-               /* Should quit. */
-               ret = 1;
-       } else if (ret < 0 && errno != EINTR) {
-               /* Unknown error. */
-               PERROR("Failed to epoll()/poll() thread quit pipe");
-               ret = -1;
-       } else {
-               /* Timeout reached. */
-               ret = 0;
-       }
-end_clean_poll:
-       lttng_poll_clean(&events);
-end:
-       return ret;
-}
-
-int sessiond_notify_quit_pipe(void)
-{
-       return notify_thread_pipe(thread_quit_pipe[1]);
-}
-
-void sessiond_close_quit_pipe(void)
-{
-       utils_close_pipe(thread_quit_pipe);
-}
-
-static
-int __sessiond_set_thread_pollset(struct lttng_poll_event *events, size_t size,
-               int *a_pipe)
-{
-       int ret;
-
-       assert(events);
-
-       ret = lttng_poll_create(events, size, LTTNG_CLOEXEC);
-       if (ret < 0) {
-               goto error;
-       }
-
-       /* Add quit pipe */
-       ret = lttng_poll_add(events, a_pipe[0], LPOLLIN | LPOLLERR);
-       if (ret < 0) {
-               goto error;
-       }
-
-       return 0;
-
-error:
-       return ret;
-}
-
-/*
- * Create a poll set with O_CLOEXEC and add the thread quit pipe to the set.
- */
-int sessiond_set_thread_pollset(struct lttng_poll_event *events, size_t size)
-{
-       return __sessiond_set_thread_pollset(events, size, thread_quit_pipe);
-}