| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2. |
| * |
| * This program 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 General Public License for more details. |
| * |
| * |
| * Test that sched_setscheduler() sets the scheduling policy and scheduling |
| * parameters of the process specified by pid to policy and the parameters |
| * specified in the sched_param structure pointed to by param, respectively. |
| * |
| * For all policy describe in the spec, the test will check the policy and the |
| * param of the process after the call of sched_setscheduler. |
| */ |
| |
| #include <errno.h> |
| #include <sched.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include "posixtest.h" |
| |
| struct unique { |
| int value; |
| char *name; |
| } sym[] = { |
| |
| { |
| SCHED_FIFO, "SCHED_FIFO" |
| }, |
| { |
| SCHED_RR, "SCHED_RR" |
| }, |
| #if defined(_POSIX_SPORADIC_SERVER)&&(_POSIX_SPORADIC_SERVER != -1) || defined(_POSIX_THREAD_SPORADIC_SERVER)&&(_POSIX_THREAD_SPORADIC_SERVER != -1) |
| { |
| SCHED_SPORADIC,"SCHED_SPORADIC" |
| }, |
| #endif |
| { |
| SCHED_OTHER, "SCHED_OTHER" |
| }, |
| { |
| 0, 0 |
| } |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| int tmp, policy, priority, result = PTS_PASS; |
| struct sched_param param; |
| struct unique *tst; |
| |
| tst = sym; |
| while (tst->name) { |
| fflush(stderr); |
| printf("Policy: %s\n", tst->name); |
| fflush(stdout); |
| |
| policy = tst->value; |
| priority = (sched_get_priority_min(policy) + |
| sched_get_priority_max(policy)) / 2; |
| param.sched_priority = priority; |
| |
| tmp = sched_setscheduler(getpid(), policy, ¶m); |
| |
| if (tmp == -1 || errno != 0) { |
| if (errno == EPERM) { |
| printf(" The process do not have permission to change its own scheduler\n Try to run this test as root.\n"); |
| } else { |
| printf(" Error calling sched_setscheduler() for %s policy\n", tst->name); |
| } |
| if (result != PTS_FAIL) result = PTS_UNRESOLVED; |
| tst++; |
| continue; |
| } |
| |
| if (sched_getparam(getpid(), ¶m) != 0) { |
| perror("Error calling sched_getparam()"); |
| return PTS_UNRESOLVED; |
| } |
| |
| if (policy != sched_getscheduler(getpid())) { |
| printf(" sched_setscheduler() does not set the policy to %s.\n", tst->name); |
| result = PTS_FAIL; |
| } |
| if (priority != param.sched_priority) { |
| printf(" sched_setscheduler() does not set the right param for %s policy.\n", tst->name); |
| result = PTS_FAIL; |
| } |
| |
| tst++; |
| } |
| |
| if (result == PTS_PASS) |
| printf("Test PASSED\n"); |
| return result; |
| } |