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/*
* Compiz XOrg GTest Wrapper
*
* Copyright (C) 2013 Canonical Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authored By:
* Sam Spilsbury <smspillaz@gmail.com>
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
int usage ()
{
printf ("usage: xorg_gtest_wrapper EXECUTABLE ARGUMENTS\n");
return 1;
}
int main (int argc, char **argv)
{
if (argc < 2)
return usage ();
/* We need to force the child stdout to remain open here.
*
* This is ugly, but the X Server and clients seem to
* have some real trouble when you close their stdin/stdout.
* It isn't really clear why, but at having a noisy test is
* better than having a test that fails randomly. Without it,
* the tests will occasionally hang in _XReply (), or the servers
* will hang in other areas, probably in an IPC area or syscall
*/
setenv ("XORG_GTEST_CHILD_STDOUT", "1", 1);
char * const *exec_args = const_cast <char * const *> (&argv[1]);
/* Fork and spawn the new process */
pid_t test = fork ();
if (test == -1)
{
perror ("fork");
return 1;
}
if (test == 0)
{
if (execvp (argv[1], exec_args) == -1)
{
perror ("execvp");
return 1;
}
}
int status = 0;
/* Make sure it exited normally */
do
{
pid_t child = waitpid (test, &status, 0);
if (test == child)
{
if (WIFSIGNALED (status))
return 1;
}
else
{
perror ("waitpid");
return 1;
}
} while (!WIFEXITED (status) && !WIFSIGNALED (status));
return WEXITSTATUS (status);
}
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