/*
- * Copyright (C) 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2018 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.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * 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 <common/compat/poll.h>
#include "utils.h"
+#if HAVE_EPOLL
+
+struct create_args {
+ struct lttng_poll_event *events;
+ int size;
+ int flags;
+};
+
+static int open_epoll(void *data, int *out_fd)
+{
+ int ret;
+ struct create_args *args = data;
+
+ ret = lttng_poll_create(args->events, args->size, args->flags);
+ if (ret < 0) {
+ goto end;
+ }
+
+ *out_fd = args->events->epfd;
+end:
+ return ret;
+}
+
+static int close_epoll(void *data, int *in_fd)
+{
+ /* Will close the epfd. */
+ lttng_poll_clean((struct lttng_poll_event *) data);
+ return 0;
+}
+
/*
* The epoll variant of the poll compat layer creates an unsuspendable fd which
* must be tracked.
*/
-int fd_tracker_util_poll_create(struct fd_tracker *tracker, const char *name,
- struct lttng_poll_event *events, int size, int flags)
+int fd_tracker_util_poll_create(struct fd_tracker *tracker,
+ const char *name,
+ struct lttng_poll_event *events,
+ int size,
+ int flags)
+{
+ int out_fd;
+ struct create_args create_args = {
+ .events = events,
+ .size = size,
+ .flags = flags,
+ };
+
+ return fd_tracker_open_unsuspendable_fd(
+ tracker, &out_fd, &name, 1, open_epoll, &create_args);
+}
+
+int fd_tracker_util_poll_clean(
+ struct fd_tracker *tracker, struct lttng_poll_event *events)
+{
+ return fd_tracker_close_unsuspendable_fd(
+ tracker, &events->epfd, 1, close_epoll, events);
+}
+
+#else /* HAVE_EPOLL */
+
+/*
+ * The epoll variant of the poll compat layer creates an unsuspendable fd which
+ * must be tracked.
+ */
+int fd_tracker_util_poll_create(struct fd_tracker *tracker,
+ const char *name,
+ struct lttng_poll_event *events,
+ int size,
+ int flags)
{
return lttng_poll_create(events, size, flags);
}
-int fd_tracker_util_poll_clean(struct fd_tracker *tracker,
- struct lttng_poll_event *events)
+int fd_tracker_util_poll_clean(
+ struct fd_tracker *tracker, struct lttng_poll_event *events)
{
lttng_poll_clean(events);
return 0;
}
+
+#endif /* !HAVE_EPOLL */