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Added a shared memory test.

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- libposix error printing now configurable via macro definition
- shmget/at/dt tested.
This commit is contained in:
Bahadir Balban
2009-05-12 18:16:25 +03:00
parent 324481a334
commit 33fcceb2b6
24 changed files with 126 additions and 76 deletions
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57
tasks/test0/src/shmtest.c
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@@ -9,6 +9,7 @@
#include <fcntl.h>
#include <stdio.h>
#include <tests.h>
#include <unistd.h>
int shmtest(void)
{
@@ -17,35 +18,53 @@ int shmtest(void)
void *bases[2] = { 0 , 0 };
int shmids[2];
printf("Initiating shmget()\n");
test_printf("Initiating shmget()\n");
for (int i = 0; i < 2; i++) {
if ((shmids[i] = shmget(keys[i], 27, IPC_CREAT | 0666)) < 0) {
printf("Call failed.\n");
perror("SHMGET");
test_printf("SHMGET", errno);
goto out_err;
} else
printf("SHMID returned: %d\n", shmids[i]);
test_printf("SHMID returned: %d\n", shmids[i]);
}
printf("Now shmat()\n");
test_printf("Now shmat()\n");
for (int i = 0; i < 2; i++) {
if ((int)(bases[i] = shmat(shmids[i], NULL, 0)) == -1)
perror("SHMAT");
else
printf("SHM base address returned: %p\n", bases[i]);
if ((int)(bases[i] = shmat(shmids[i], NULL, 0)) == -1) {
test_printf("SHMAT", errno);
goto out_err;
} else
test_printf("SHM base address returned: %p\n", bases[i]);
}
printf("Now shmdt()\n");
/* Write to the bases */
*((unsigned int *)bases[0]) = 0xDEADBEEF;
*((unsigned int *)bases[1]) = 0xFEEDBEEF;
test_printf("Now shmdt()\n");
for (int i = 0; i < 2; i++) {
if (shmdt(bases[i]) < 0)
perror("SHMDT");
else
printf("SHM detached OK.\n");
if (shmdt(bases[i]) < 0) {
test_printf("SHMDT", errno);
goto out_err;
} else
test_printf("SHM detached OK.\n");
}
printf("Now shmat() again\n");
test_printf("Now shmat() again\n");
for (int i = 0; i < 2; i++) {
if ((int)(bases[i] = shmat(shmids[i], NULL, 0)) == -1)
perror("SHMAT");
else
printf("SHM base address returned: %p\n", bases[i]);
bases[i] = shmat(shmids[i], NULL, 0);
/* SHMAT should fail since no refs were left in last detach */
if ((int)bases[i] != -1) {
test_printf("SHM base address returned: %p, "
"but it should have failed\n", bases[i]);
goto out_err;
}
}
if (getpid() == parent_of_all)
printf("SHM TEST -- PASSED --\n");
return 0;
out_err:
printf("SHM TEST -- FAILED --\n");
return 0;
}