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Backport of this changeset

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http://lists.mysql.com/commits/59686

Cleanup pthread_self(), pthread_create(), pthread_join() implementation on Windows.
Prior implementation is was unnecessarily complicated and even differs in embedded
and non-embedded case.
      
Improvements in this patch:
* pthread_t is now the unique thread ID, instead of HANDLE returned by beginthread
      
This simplifies pthread_self() to be just straight GetCurrentThreadId().
prior it was much  art involved in passing the beginthread() handle from the caller
to the TLS structure in the child thread ( did not work for the main thread of
course)
      
* remove MySQL specific my_thread_init()/my_thread_end() from pthread_create.
No automagic is done on Unix on pthread_create(). Having the same on Windows will 
improve portability and avoid extra #ifdef's
      
* remove redefinition of getpid() - it was defined as GetCurrentThreadId()
This commit is contained in:
Vladislav Vaintroub 2009-09-30 17:40:12 +02:00
commit 14c2cfb568
9 changed files with 130 additions and 138 deletions
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3
mysys/my_wincond.c
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@ -16,12 +16,11 @@
/*****************************************************************************
** The following is a simple implementation of posix conditions
*****************************************************************************/
#if defined(_WIN32)
#undef SAFE_MUTEX /* Avoid safe_mutex redefinitions */
#include "mysys_priv.h"
#if defined(THREAD) && defined(__WIN__)
#include <m_string.h>
#undef getpid
#include <process.h>
#include <sys/timeb.h>