wayland/tests/test-helpers.c

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/*
* Copyright © 2012 Collabora, Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <assert.h>
#include <errno.h>
#include <dirent.h>
#include "test-runner.h"
int
count_open_fds(void)
{
DIR *dir;
struct dirent *ent;
int count = 0;
dir = opendir("/proc/self/fd");
assert(dir && "opening /proc/self/fd failed.");
errno = 0;
while ((ent = readdir(dir))) {
const char *s = ent->d_name;
if (s[0] == '.' && (s[1] == 0 || (s[1] == '.' && s[2] == 0)))
continue;
count++;
}
assert(errno == 0 && "reading /proc/self/fd failed.");
closedir(dir);
return count;
}