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From: David Xu <davidxu@FreeBSD.org>
Date: Tue, 5 Jan 2010 12:34:13 +0000 (UTC)
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Subject: svn commit: r201575 - head/tools/regression/posixsem2
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Author: davidxu
Date: Tue Jan  5 12:34:13 2010
New Revision: 201575
URL: http://svn.freebsd.org/changeset/base/201575

Log:
  Add test code for POSIX semaphore implementation.

Added:
  head/tools/regression/posixsem2/
  head/tools/regression/posixsem2/Makefile   (contents, props changed)
  head/tools/regression/posixsem2/semtest.c   (contents, props changed)

Added: head/tools/regression/posixsem2/Makefile
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/tools/regression/posixsem2/Makefile	Tue Jan  5 12:34:13 2010	(r201575)
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+PROG=	semtest
+SRCS=	semtest.c
+NO_MAN=
+
+WARNS?=	3
+
+.include <bsd.prog.mk>

Added: head/tools/regression/posixsem2/semtest.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/tools/regression/posixsem2/semtest.c	Tue Jan  5 12:34:13 2010	(r201575)
@@ -0,0 +1,101 @@
+/* $FreeBSD$ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <err.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#define SEM_NAME "/semtst"
+
+int test_unnamed(void);
+int test_named(void);
+
+int
+test_unnamed(void)
+{
+	sem_t *s;
+	pid_t pid;
+	int status;
+
+	printf("testing unnamed process-shared semaphore\n");
+	s = (sem_t *)mmap(NULL, sizeof(sem_t), PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED,
+		-1, 0);
+	if (s == MAP_FAILED)
+		err(1, "mmap failed");
+	if (sem_init(s, 1, 0))
+		err(2, "sem_init failed");
+	if ((pid = fork()) == 0) {
+		printf("child: sem_wait()\n");
+		if (sem_wait(s))
+			err(3, "sem_wait failed");
+		printf("child: sem_wait() returned\n");
+		exit(0);
+	} else {
+		sleep(1);
+		printf("parent: sem_post()\n");
+		if (sem_post(s))
+			err(4, "sem_post failed");
+		waitpid(pid, &status, 0);
+		if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
+			printf("OK.\n");
+		else
+			printf("Failure.");
+	}
+	return (0);
+}
+
+int
+test_named(void)
+{
+	sem_t *s, *s2;
+	pid_t pid;
+	int status;
+
+	printf("testing named process-shared semaphore\n");
+	sem_unlink(SEM_NAME);
+	s = sem_open(SEM_NAME, O_CREAT, 0777);
+	if (s == SEM_FAILED)
+		err(1, "sem_open failed");
+	s2 = sem_open(SEM_NAME, O_CREAT, 0777);
+	if (s2 == SEM_FAILED)
+		err(2, "second sem_open call failed");
+	if (s != s2)
+		err(3, "two sem_open calls for same semaphore do not returm same address.");
+	if (sem_close(s2))
+		err(4, "sem_close failed");
+	if ((pid = fork()) == 0) {
+		printf("child: sem_wait()\n");
+		if (sem_wait(s))
+			err(5, "sem_wait failed");
+		printf("child: sem_wait() returned\n");
+		exit(0);
+	} else {
+		sleep(1);
+		printf("parent: sem_post()\n");
+		if (sem_post(s))
+			err(6, "sem_post failed");
+		waitpid(pid, &status, 0);
+		if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
+			printf("OK.\n");
+		else
+			printf("Failure.");
+	}
+
+	if (sem_close(s))
+		err(7, "sem_close failed");
+	
+	return (0);
+}
+
+int
+main(void)
+{
+	test_unnamed();
+	test_named();
+	return (0);
+}