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Added a simple TLS test app.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2361 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2003-01-06 08:04:21 +00:00
parent 7208e95f0e
commit 1f149d94c4
2 changed files with 94 additions and 0 deletions
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1
src/kernel/apps/Jamfile
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@ -7,6 +7,7 @@ KernelObjects
true_main.c
sig_test.c
select_test.c
tls_test.c
;
SubInclude OBOS_TOP src kernel apps cpuinfo ;

93
src/kernel/apps/tls_test.c Normal file
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@ -0,0 +1,93 @@
/* tests TLS (thread locale storage) functionality */
/*
** Copyright 2002, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
** Distributed under the terms of the OpenBeOS License.
*/
#include <OS.h>
#include <TLS.h>
#include <stdio.h>
#include <string.h>
sem_id gWait;
int32 gSlot;
#if __INTEL__
static void *
read_fs_register(void)
{
void *fs;
asm("movl %%fs, %0" : "=r" (fs));
return fs;
}
#endif
static int32
thread1_func(void *data)
{
printf("1. stack at: %p\n", &data);
printf("1. TLS address = %p\n", tls_address(gSlot));
tls_set(gSlot, (void *)"thread 1");
printf("1. TLS get = %s (should be \"thread 1\")\n", (char *)tls_get(gSlot));
acquire_sem(gWait);
printf("1. TLS get = %s (should be \"thread 1\")\n", (char *)tls_get(gSlot));
return 0;
}
static int32
thread2_func(void *data)
{
printf("2. stack at: %p\n", &data);
printf("2. TLS address = %p\n", tls_address(gSlot));
printf("2. TLS get = %s (should be NULL)\n", (char *)tls_get(gSlot));
acquire_sem(gWait);
printf("2. TLS get = %s (should be NULL)\n", (char *)tls_get(gSlot));
return 0;
}
int
main(int argc, char **argv)
{
thread_id thread1, thread2;
gWait = create_sem(0, "waiter");
gSlot = tls_allocate();
printf("got slot %ld : %p\n", gSlot, &thread1);
#if __INTEL__
printf("FS register is %p\n", read_fs_register());
#endif
printf("TLS address in main = %p\n", tls_address(gSlot));
tls_set(gSlot, (void *)"main thread");
thread1 = spawn_thread(thread1_func, "Thread 1" , B_NORMAL_PRIORITY, NULL);
resume_thread(thread1);
thread2 = spawn_thread(thread2_func, "Thread 2" , B_NORMAL_PRIORITY, NULL);
resume_thread(thread2);
printf("TLS in main = %s (should be \"main thread\")\n", (char *)tls_get(gSlot));
// shut down
snooze(100000);
delete_sem(gWait);
return 0;
}