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author | Ulrich Drepper <drepper@redhat.com> | 2002-12-02 08:07:18 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-02 08:07:18 +0000 |
commit | 01b5406684a71cc46be1254f1a08615a384e3fbe (patch) | |
tree | 5f182a81b74ddd719d240d619e2ebbaf2eaf3b7a /nptl/tst-fork2.c | |
parent | 720efe005bf1e5795e57b7b7acf828b4d9874b9f (diff) | |
download | glibc-01b5406684a71cc46be1254f1a08615a384e3fbe.zip glibc-01b5406684a71cc46be1254f1a08615a384e3fbe.tar.gz glibc-01b5406684a71cc46be1254f1a08615a384e3fbe.tar.bz2 |
Tests for getppid in MT applications.
Diffstat (limited to 'nptl/tst-fork2.c')
-rw-r--r-- | nptl/tst-fork2.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/nptl/tst-fork2.c b/nptl/tst-fork2.c new file mode 100644 index 0000000..07d6c22 --- /dev/null +++ b/nptl/tst-fork2.c @@ -0,0 +1,90 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Roland McGrath <roland@redhat.com>, 2002. + + The GNU C 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. + + The GNU C 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/wait.h> + + +static pid_t initial_pid; + + +static void * +tf (void *arg) +{ + if (getppid () != initial_pid) + { + printf ("getppid in thread returned %ld, expected %ld\n", + (long int) getppid (), (long int) initial_pid); + return (void *) -1; + } + + return NULL; +} + + +int +main (void) +{ + initial_pid = getpid (); + + pid_t child = fork (); + if (child == 0) + { + if (getppid () != initial_pid) + { + printf ("first getppid returned %ld, expected %ld\n", + (long int) getppid (), (long int) initial_pid); + exit (1); + } + + pthread_t th; + if (pthread_create (&th, NULL, tf, NULL) != 0) + { + puts ("pthread_create failed"); + exit (1); + } + + void *result; + if (pthread_join (th, &result) != 0) + { + puts ("pthread_join failed"); + exit (1); + } + + exit (result == NULL ? 0 : 1); + } + else if (child == -1) + { + puts ("initial fork failed"); + return 1; + } + + int status; + if (TEMP_FAILURE_RETRY (waitpid (child, &status, 0)) != child) + { + printf ("waitpid failed: %m\n"); + return 1; + } + + return status; +} |