[LTP] [PATCH v3 1/3] tst_safe_sysv_ipc.c: Add SAFE_SEMOP macro

[Yang Xu]

From: Yang Xu <xuyang2018.jy@cn.fujitsu.com>

Reviewed-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
---
 include/tst_safe_sysv_ipc.h |  4 ++++
 lib/tst_safe_sysv_ipc.c     | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/include/tst_safe_sysv_ipc.h b/include/tst_safe_sysv_ipc.h
index bb6532662..7804ce192 100644
--- a/include/tst_safe_sysv_ipc.h
+++ b/include/tst_safe_sysv_ipc.h
@@ -65,4 +65,8 @@ int safe_semctl(const char *file, const int lineno, int semid, int semnum,
 	(semid) = ((cmd) == IPC_RMID ? -1 : (semid)); \
 	tst_ret_; })
 
+int safe_semop(const char *file, const int lineno, int semid, struct sembuf *sops,
+		size_t nsops);
+#define SAFE_SEMOP(semid, sops, nsops) \
+	safe_semop(__FILE__, __LINE__, (semid), (sops), (nsops))
 #endif /* TST_SAFE_SYSV_IPC_H__ */
diff --git a/lib/tst_safe_sysv_ipc.c b/lib/tst_safe_sysv_ipc.c
index e72985d61..012f5ba38 100644
--- a/lib/tst_safe_sysv_ipc.c
+++ b/lib/tst_safe_sysv_ipc.c
@@ -227,3 +227,21 @@ int safe_semctl(const char *file, const int lineno, int semid, int semnum,
 
 	return rval;
 }
+
+int safe_semop(const char *file, const int lineno, int semid, struct sembuf *sops,
+		size_t nsops)
+{
+	int rval;
+
+	rval = semop(semid, sops, nsops);
+	if (rval == -1) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"semop(%d, %p, %zu) failed", semid, sops, nsops);
+	} else if (rval < 0) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"Invalid semop(%d, %p, %zu) return value %d",
+			semid, sops, nsops, rval);
+	}
+
+	return rval;
+}
-- 
2.23.0