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log: Write more details in write_pidfile

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Signed-off-by: Cyrill Gorcunov <gorcunov@virtuozzo.com>
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
This commit is contained in:
Cyrill Gorcunov 2018-12-13 18:15:49 +03:00 • committed by Andrei Vagin
parent 7c6eb0b85c
commit aab709b602
1 changed files with 17 additions and 4 deletions
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21
criu/log.c
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@ -397,15 +397,28 @@ void print_on_level(unsigned int loglevel, const char *format, ...)
int write_pidfile(int pid)
{
int fd;
int fd, ret, exit_code = -1;
fd = open(opts.pidfile, O_WRONLY | O_EXCL | O_CREAT, 0600);
if (fd == -1) {
pr_perror("Can't open %s", opts.pidfile);
pr_perror("pidfile: Can't open %s", opts.pidfile);
return -1;
}
dprintf(fd, "%d", pid);
ret = dprintf(fd, "%d", pid);
if (ret < 0) {
pr_perror("pidfile: Can't write pid %d to %s", pid, opts.pidfile);
goto close;
}
if (ret == 0) {
pr_err("pidfile: Can't write pid %d to %s\n", pid, opts.pidfile);
goto close;
}
pr_debug("pidfile: Wrote pid %d to %s (%d bytes)\n", pid, opts.pidfile, ret);
exit_code = 0;
close:
close(fd);
return 0;
return exit_code;
}