@@ -30,7 +30,7 @@ routines := ftok \
semop semget semctl semtimedop \
shmat shmdt shmget shmctl
-tests := test-sysvmsg
+tests := test-sysvmsg test-sysvsem
include ../Rules
new file mode 100644
@@ -0,0 +1,116 @@
+/* Basic tests for SYSV semaphore functions.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv) do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+/* This defines the `main' function and some more. */
+#include <test-skeleton.c>
+
+/* These are for the temporary file we generate. */
+static char *name;
+static int semid;
+
+static void
+remove_sem (void)
+{
+ /* Enforce message queue removal in case o early test failure.
+ Ignore error since the msgq maybe already being removed. */
+ semctl (semid, 0, IPC_RMID, 0);
+}
+
+static void
+do_prepare (void)
+{
+ int fd = create_temp_file ("tst-sysvsem.", &name);
+ if (fd == -1)
+ FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno);
+}
+
+/* It is not an extensive test, but rather a functional one aimed to check
+ correct parameter passing on kernel. */
+
+#define SEM_MODE 0644
+
+static int
+do_test (void)
+{
+ atexit (remove_sem);
+
+ key_t key = ftok (name, 'G');
+ if (key == -1)
+ FAIL_EXIT1 ("ftok failed");
+
+ semid = semget(key, 1, IPC_CREAT | IPC_EXCL | SEM_MODE);
+ if (semid == -1)
+ {
+ if (errno == ENOSYS)
+ FAIL_UNSUPPORTED ("msgget not supported");
+ FAIL_EXIT1 ("semget failed (errno=%d)", errno);
+ }
+
+ /* Get semaphore kernel information and do some sanitiy checks. */
+ struct semid_ds seminfo;
+ if (semctl (semid, 0, IPC_STAT, &seminfo) == -1)
+ FAIL_EXIT1 ("semctl with IPC_STAT failed (errno=%d)", errno);
+
+ if (seminfo.sem_perm.__key != key)
+ FAIL_EXIT1 ("semid_ds::sem_perm::key (%d) != %d",
+ (int) seminfo.sem_perm.__key, (int) key);
+ if (seminfo.sem_perm.mode != SEM_MODE)
+ FAIL_EXIT1 ("semid_ds::sem_perm::mode (%o) != %o",
+ seminfo.sem_perm.mode, SEM_MODE);
+ if (seminfo.sem_nsems != 1)
+ FAIL_EXIT1 ("semid_ds::sem_nsems (%lu) != 1",
+ (long unsigned) seminfo.sem_nsems);
+
+ /* Some lock/unlock basic tests. */
+ struct sembuf sb1 = { 0, 1, 0 };
+ if (semop (semid, &sb1, 1) == -1)
+ FAIL_EXIT1 ("semop failed (errno=%i)", errno);
+
+ struct sembuf sb2 = { 0, -1, 0 };
+ if (semop (semid, &sb2, 1) == -1)
+ FAIL_EXIT1 ("semop failed (errno=%i)", errno);
+
+#ifdef _GNU_SOURCE
+ /* Set a time for half a second. The semaphore operation should timeout
+ with EAGAIN. */
+ struct timespec ts = { 0 /* sec */, 500000000 /* nsec */ };
+ if (semtimedop (semid, &sb2, 1, &ts) != -1
+ || (errno != EAGAIN && errno != ENOSYS))
+ FAIL_EXIT1 ("semtimedop succeed or returned errno != {EAGAIN,ENOSYS} "
+ "(errno=%i)", errno);
+#endif
+
+ /* Finally free up the semnaphore resource. */
+ if (semctl (semid, 0, IPC_RMID, 0) == -1)
+ FAIL_EXIT1 ("semctl failed (errno=%d)", errno);
+
+ return 0;
+}