77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <pthread.h>
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#include <stdio.h>
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#include <unistd.h>
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static void*
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thread1_func(void* arg)
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{
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usleep( 2000*1000 );
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printf("thread 1 exited\n");
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return (void*) 0x8badf00d;
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}
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static void*
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thread2_func(void* arg)
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{
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pthread_t t1 = (pthread_t)arg;
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void* result;
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pthread_join(t1, &result);
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printf("thread2 received code %08x from thread1\n", (int)result);
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return NULL;
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}
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static void*
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thread3_func(void* arg)
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{
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pthread_t t1 = (pthread_t)arg;
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void* result;
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pthread_join(t1, &result);
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printf("thread3 received code %08x from thread1\n", (int)result);
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return NULL;
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}
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int main( void )
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{
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pthread_t t1, t2, t3;
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pthread_create( &t1, NULL, thread1_func, NULL );
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pthread_create( &t2, NULL, thread2_func, (void*)t1 );
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pthread_create( &t3, NULL, thread3_func, (void*)t1 );
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pthread_join(t2, NULL);
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pthread_join(t3, NULL);
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printf("OK\n");
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return 0;
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}
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