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am d53cae0e: Add non-NDK internal API __pthread_gettid

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* commit 'd53cae0e45dafdb3a83ccc3675051c0aee532111':
  Add non-NDK internal API __pthread_gettid
This commit is contained in:
Glenn Kasten 2011-09-16 14:45:24 -07:00 committed by Android Git Automerger
commit 370bbc5dea
2 changed files with 54 additions and 0 deletions
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13
libc/bionic/pthread.c
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@ -49,6 +49,7 @@
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <bionic_pthread.h>
extern int __pthread_clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
extern void _exit_with_stack_teardown(void * stackBase, int stackSize, int retCode);
@ -1964,3 +1965,15 @@ exit:
errno = saved_errno;
return ret;
}
/* Return the kernel thread ID for a pthread.
* This is only defined for implementations where pthread <-> kernel is 1:1, which this is.
* Not the same as pthread_getthreadid_np, which is commonly defined to be opaque.
* Internal, not an NDK API.
*/
pid_t __pthread_gettid(pthread_t thid)
{
pthread_internal_t* thread = (pthread_internal_t*)thid;
return thread->kernel_id;
}

41
libc/private/bionic_pthread.h Normal file
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@ -0,0 +1,41 @@
/*
* Copyright (C) 2011 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _BIONIC_PTHREAD_H
#define _BIONIC_PTHREAD_H
#include <sys/cdefs.h>
__BEGIN_DECLS
/* Internal, not an NDK API */
extern pid_t __pthread_gettid(pthread_t thid);
__END_DECLS
#endif /* _BIONIC_PTHREAD_H */