* 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 as published by the Free
+ * Software Foundation; only version 2 of the License.
*
- * 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.
+ * 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., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _GNU_SOURCE
#include <sys/stat.h>
#include <unistd.h>
+#include <lttngerr.h>
+
#include "utils.h"
+/*
+ * Write to writable pipe used to notify a thread.
+ */
+int notify_thread_pipe(int wpipe)
+{
+ int ret;
+
+ ret = write(wpipe, "!", 1);
+ if (ret < 0) {
+ PERROR("write poll pipe");
+ }
+
+ return ret;
+}
+
/*
* Return pointer to home directory path using the env variable HOME.
*
ret = snprintf(tmp, sizeof(tmp), "%s", path);
if (ret < 0) {
- perror("snprintf mkdir");
+ PERROR("snprintf mkdir");
goto error;
}
ret = mkdir(tmp, mode);
if (ret < 0) {
if (!(errno == EEXIST)) {
- perror("mkdir recursive");
+ PERROR("mkdir recursive");
ret = -errno;
goto umask_error;
}
*/
ret = chown(tmp, uid, gid);
if (ret < 0) {
- perror("chown in mkdir recursive");
+ PERROR("chown in mkdir recursive");
ret = -errno;
goto umask_error;
}
ret = mkdir(tmp, mode);
if (ret < 0) {
- ret = -errno;
+ if (!(errno == EEXIST)) {
+ PERROR("mkdir recursive last piece");
+ ret = -errno;
+ } else {
+ ret = 0;
+ }
} else if (ret == 0) {
/*
* We created the directory. Set its ownership to the user/group
*/
ret = chown(tmp, uid, gid);
if (ret < 0) {
- perror("chown in mkdir recursive");
+ PERROR("chown in mkdir recursive");
ret = -errno;
goto umask_error;
}