diff mbox

[v2,11/16] Add SYSV semaphore test

Message ID 1478114813-3526-12-git-send-email-adhemerval.zanella@linaro.org
State New
Headers show

Commit Message

Adhemerval Zanella Netto Nov. 2, 2016, 7:26 p.m. UTC
Changes from previous version:

  - Use __ASSUME_SYSVIPC_SYSCALL instead of __NR_syscall to issue the
    wired syscall or the ipc one.

--

This patch adds a simple SYSV semaphore test to check for correct
argument passing on kernel.  The idea is neither to be an extensive
testing nor to check for any specific Linux test.

	* sysvipc/Makefile (tests): Add test-sysvsem.
	* sysvipc/test-sysvsem.c: New file.
---
 ChangeLog              |   3 ++
 sysvipc/Makefile       |   2 +-
 sysvipc/test-sysvsem.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 119 insertions(+), 1 deletion(-)
 create mode 100644 sysvipc/test-sysvsem.c

Comments

Yury Norov Nov. 3, 2016, 5:10 p.m. UTC | #1
On Wed, Nov 02, 2016 at 05:26:48PM -0200, Adhemerval Zanella wrote:
> Changes from previous version:
> 
>   - Use __ASSUME_SYSVIPC_SYSCALL instead of __NR_syscall to issue the
>     wired syscall or the ipc one.
> 
> --
> 
> This patch adds a simple SYSV semaphore test to check for correct
> argument passing on kernel.  The idea is neither to be an extensive
> testing nor to check for any specific Linux test.
> 
> 	* sysvipc/Makefile (tests): Add test-sysvsem.
> 	* sysvipc/test-sysvsem.c: New file.
> ---
>  ChangeLog              |   3 ++
>  sysvipc/Makefile       |   2 +-
>  sysvipc/test-sysvsem.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 119 insertions(+), 1 deletion(-)
>  create mode 100644 sysvipc/test-sysvsem.c
> 
> diff --git a/sysvipc/Makefile b/sysvipc/Makefile
> index 73bb9cf..32d64dc 100644
> --- a/sysvipc/Makefile
> +++ b/sysvipc/Makefile
> @@ -30,7 +30,7 @@ routines := ftok \
>  	    semop semget semctl semtimedop \
>  	    shmat shmdt shmget shmctl
>  
> -tests    := test-sysvmsg
> +tests    := test-sysvmsg test-sysvsem
>  
>  include ../Rules
>  
> diff --git a/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c
> new file mode 100644
> index 0000000..178a424
> --- /dev/null
> +++ b/sysvipc/test-sysvsem.c
> @@ -0,0 +1,115 @@
> +/* 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.  

Trailing whitespace

> +     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 ("msgget 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 ("msgctl with IPC_STAT failed (errno=%d)", errno);
> +
> +  if (seminfo.sem_perm.__key != key)
> +    FAIL_EXIT1 ("msgid_ds::sem_perm::key (%d) != %d",
> +		(int) seminfo.sem_perm.__key, (int) key);
> +  if (seminfo.sem_perm.mode != SEM_MODE)
> +    FAIL_EXIT1 ("msgid_ds::sem_perm::mode (%o) != %o",
> +		seminfo.sem_perm.mode, SEM_MODE);
> +  if (seminfo.sem_nsems != 1)
> +    FAIL_EXIT1 ("msgid_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)
> +    FAIL_EXIT1 ("semtimedop succeed or returned errno != EAGAIN (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;
> +}
> -- 
> 2.7.4
Adhemerval Zanella Netto Nov. 3, 2016, 8:10 p.m. UTC | #2
On 03/11/2016 15:10, Yury Norov wrote:
>> diff --git a/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c
>> new file mode 100644
>> index 0000000..178a424
>> --- /dev/null
>> +++ b/sysvipc/test-sysvsem.c
>> @@ -0,0 +1,115 @@
>> +/* 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.  
> 
> Trailing whitespace

Ack, I fixed in my local branch.
diff mbox

Patch

diff --git a/sysvipc/Makefile b/sysvipc/Makefile
index 73bb9cf..32d64dc 100644
--- a/sysvipc/Makefile
+++ b/sysvipc/Makefile
@@ -30,7 +30,7 @@  routines := ftok \
 	    semop semget semctl semtimedop \
 	    shmat shmdt shmget shmctl
 
-tests    := test-sysvmsg
+tests    := test-sysvmsg test-sysvsem
 
 include ../Rules
 
diff --git a/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c
new file mode 100644
index 0000000..178a424
--- /dev/null
+++ b/sysvipc/test-sysvsem.c
@@ -0,0 +1,115 @@ 
+/* 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 ("msgget 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 ("msgctl with IPC_STAT failed (errno=%d)", errno);
+
+  if (seminfo.sem_perm.__key != key)
+    FAIL_EXIT1 ("msgid_ds::sem_perm::key (%d) != %d",
+		(int) seminfo.sem_perm.__key, (int) key);
+  if (seminfo.sem_perm.mode != SEM_MODE)
+    FAIL_EXIT1 ("msgid_ds::sem_perm::mode (%o) != %o",
+		seminfo.sem_perm.mode, SEM_MODE);
+  if (seminfo.sem_nsems != 1)
+    FAIL_EXIT1 ("msgid_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)
+    FAIL_EXIT1 ("semtimedop succeed or returned errno != EAGAIN (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;
+}