| /* |
| * Copyright (c) 2002, Intel Corporation. All rights reserved. |
| * Created by: rolla.n.selbak REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| * |
| * void pthread_cleanup_push(void (*routine) (void*), void *arg); |
| * |
| * Shall push the specified cancelation cleanup handler routine onto the calling thread's |
| * cancelation cleanup stack. The cancelation cleanup handler shall be popped from the |
| * cancelation cleanup stack and invoked with the argument arg when: |
| * |
| * (a)- The thread exits (calls pthread_exit()) |
| * (b)- The thread acts upon a cancelation request |
| * (c)- the thread calls pthread_cleanup_pop() with a non-zero execution argument |
| * |
| * Testing (b) |
| * |
| * STEPS: |
| * 1. Create a thread |
| * 2. In the thread, push a cancelation handler |
| * 3. Main will cancel the thread before the thread exits |
| * 4. Verify that the cleanup handler was called |
| */ |
| |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include "posixtest.h" |
| |
| # define CLEANUP_NOTCALLED 0 |
| # define CLEANUP_CALLED 1 |
| |
| # define INTHREAD 0 /* Control going to or is already for Thread */ |
| # define INMAIN 1 /* Control going to or is already for Main */ |
| |
| int sem1; /* Manual semaphore */ |
| int cleanup_flag; |
| |
| /* The cleanup handler */ |
| void a_cleanup_func(void *flag_val) |
| { |
| cleanup_flag = (long)flag_val; |
| sem1 = INMAIN; |
| return; |
| } |
| |
| /* Function that the thread executes upon its creation */ |
| void *a_thread_func() |
| { |
| pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
| pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); |
| |
| pthread_cleanup_push(a_cleanup_func, (void*) CLEANUP_CALLED); |
| |
| /* Indicate to main() that the thread has been created. */ |
| sem1=INMAIN; |
| |
| /* Wait until main() has sent out a cancel request, meaning until it |
| * sets sem1==INTHREAD */ |
| while (sem1==INMAIN) |
| sleep(1); |
| |
| /* Give thread 10 seconds to time out. If the cancel request was not |
| * honored until now, the test is unresolved because the cancel request |
| * was not handled correctly. */ |
| sleep(10); |
| |
| /* Shouldn't get here if the cancel request was honored immediately |
| * like it should have been. */ |
| pthread_cleanup_pop(0); |
| pthread_exit((void*)PTS_UNRESOLVED); |
| return NULL; |
| } |
| |
| int main() |
| { |
| pthread_t new_th; |
| void *value_ptr; /* hold return value of thread from pthread_join */ |
| |
| /* Initializing values */ |
| sem1=INTHREAD; |
| cleanup_flag=CLEANUP_NOTCALLED; |
| |
| /* Create a new thread. */ |
| if (pthread_create(&new_th, NULL, a_thread_func, NULL) != 0) |
| { |
| perror("Error creating thread\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* Make sure thread is created before we cancel it. (wait for |
| * a_thread_func() to set sem1=1.) */ |
| while (sem1==INTHREAD) |
| sleep(1); |
| |
| if (pthread_cancel(new_th) != 0) |
| { |
| printf("Error: Couldn't cancel thread\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* Indicate to the thread function that the thread cancel request |
| * has been sent to it. */ |
| sem1=INTHREAD; |
| |
| /* Wait for thread to return. */ |
| if (pthread_join(new_th, &value_ptr) != 0) |
| { |
| printf("Error in pthread_join()\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* Make sure cancellation happened correctly */ |
| if ((long)value_ptr == PTS_UNRESOLVED) |
| { |
| printf("Error: cancellation not correctly handled\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* This means that the cleanup function wasn't called, so the cancel |
| * request was not honord immediately like it should have been. */ |
| if (cleanup_flag != CLEANUP_CALLED) |
| { |
| printf("Test FAILED: Cleanup hanlder not called up cancellation\n"); |
| return PTS_FAIL; |
| } |
| |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |