Axel Dörfler
f9afe354bf
(as it uses TLS, have a look at OS.h). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2383 a95241bf-73f2-0310-859d-f6bbb57e9c96
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/* tests TLS (thread locale storage) functionality */
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/*
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** Copyright 2002, Axel Dörfler, [email protected]. All rights reserved.
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** Distributed under the terms of the OpenBeOS License.
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*/
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#include <OS.h>
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#include <TLS.h>
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#include <stdio.h>
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#include <string.h>
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sem_id gWait;
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int32 gSlot;
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#if __INTEL__
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static void *
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read_fs_register(void)
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{
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void *fs;
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asm("movl %%fs, %0" : "=r" (fs));
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return fs;
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}
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#endif
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static int32
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thread1_func(void *data)
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{
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printf("1. stack at %p, thread id = %ld\n", &data, find_thread(NULL));
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printf("1. TLS address = %p\n", tls_address(gSlot));
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tls_set(gSlot, (void *)"thread 1");
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printf("1. TLS get = \"%s\" (should be \"thread 1\")\n", (char *)tls_get(gSlot));
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acquire_sem(gWait);
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printf("1. TLS get = \"%s\" (should be \"thread 1\")\n", (char *)tls_get(gSlot));
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return 0;
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}
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static int32
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thread2_func(void *data)
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{
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printf("2. stack at %p, thread id = %ld\n", &data, find_thread(NULL));
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printf("2. TLS address = %p\n", tls_address(gSlot));
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printf("2. TLS get = \"%s\" (should be NULL)\n", (char *)tls_get(gSlot));
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acquire_sem(gWait);
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printf("2. TLS get = \"%s\" (should be NULL)\n", (char *)tls_get(gSlot));
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return 0;
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}
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int
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main(int argc, char **argv)
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{
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thread_id thread1, thread2;
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status_t returnCode;
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gWait = create_sem(0, "waiter");
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gSlot = tls_allocate();
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printf("got slot %ld, stack at %p, thread id = %ld\n", gSlot, &thread1, find_thread(NULL));
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#if __INTEL__
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printf("FS register is %p\n", read_fs_register());
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#endif
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printf("TLS address in main = %p\n", tls_address(gSlot));
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tls_set(gSlot, (void *)"main thread");
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thread1 = spawn_thread(thread1_func, "Thread 1" , B_NORMAL_PRIORITY, NULL);
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resume_thread(thread1);
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thread2 = spawn_thread(thread2_func, "Thread 2" , B_NORMAL_PRIORITY, NULL);
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resume_thread(thread2);
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printf("TLS in main = \"%s\" (should be \"main thread\")\n", (char *)tls_get(gSlot));
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// shut down
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snooze(100000);
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delete_sem(gWait);
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wait_for_thread(thread1, &returnCode);
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wait_for_thread(thread2, &returnCode);
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return 0;
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}
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