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author | davidxu <davidxu@FreeBSD.org> | 2010-01-05 12:34:13 +0000 |
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committer | davidxu <davidxu@FreeBSD.org> | 2010-01-05 12:34:13 +0000 |
commit | 1053aec712f82111677117dba7b24e0db2fa257e (patch) | |
tree | 8f26a3db71b1ebccaa9fe705cf5fb22c3996db7a /tools/regression | |
parent | 543315e6a463b5abdfa16d156b4ad8978297ed36 (diff) | |
download | FreeBSD-src-1053aec712f82111677117dba7b24e0db2fa257e.zip FreeBSD-src-1053aec712f82111677117dba7b24e0db2fa257e.tar.gz |
Add test code for POSIX semaphore implementation.
Diffstat (limited to 'tools/regression')
-rw-r--r-- | tools/regression/posixsem2/Makefile | 9 | ||||
-rw-r--r-- | tools/regression/posixsem2/semtest.c | 101 |
2 files changed, 110 insertions, 0 deletions
diff --git a/tools/regression/posixsem2/Makefile b/tools/regression/posixsem2/Makefile new file mode 100644 index 0000000..84f9617 --- /dev/null +++ b/tools/regression/posixsem2/Makefile @@ -0,0 +1,9 @@ +# $FreeBSD$ + +PROG= semtest +SRCS= semtest.c +NO_MAN= + +WARNS?= 3 + +.include <bsd.prog.mk> diff --git a/tools/regression/posixsem2/semtest.c b/tools/regression/posixsem2/semtest.c new file mode 100644 index 0000000..7557a61 --- /dev/null +++ b/tools/regression/posixsem2/semtest.c @@ -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); +} |