summaryrefslogtreecommitdiff
path: root/deps/mysqllite/mysys/my_winthread.c
diff options
context:
space:
mode:
Diffstat (limited to 'deps/mysqllite/mysys/my_winthread.c')
-rw-r--r--deps/mysqllite/mysys/my_winthread.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/deps/mysqllite/mysys/my_winthread.c b/deps/mysqllite/mysys/my_winthread.c
deleted file mode 100644
index 49534370a2..0000000000
--- a/deps/mysqllite/mysys/my_winthread.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/* Copyright (C) 2000 MySQL AB, 2008-2009 Sun Microsystems, Inc
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
-
-/*****************************************************************************
-** Simulation of posix threads calls for Windows
-*****************************************************************************/
-#if defined (_WIN32)
-/* SAFE_MUTEX will not work until the thread structure is up to date */
-#undef SAFE_MUTEX
-#include "mysys_priv.h"
-#include <process.h>
-#include <signal.h>
-
-static void install_sigabrt_handler(void);
-
-struct thread_start_parameter
-{
- pthread_handler func;
- void *arg;
-};
-
-/**
- Adapter to @c pthread_mutex_trylock()
-
- @retval 0 Mutex was acquired
- @retval EBUSY Mutex was already locked by a thread
- */
-int
-win_pthread_mutex_trylock(pthread_mutex_t *mutex)
-{
- if (TryEnterCriticalSection(mutex))
- {
- /* Don't allow recursive lock */
- if (mutex->RecursionCount > 1){
- LeaveCriticalSection(mutex);
- return EBUSY;
- }
- return 0;
- }
- return EBUSY;
-}
-
-static unsigned int __stdcall pthread_start(void *p)
-{
- struct thread_start_parameter *par= (struct thread_start_parameter *)p;
- pthread_handler func= par->func;
- void *arg= par->arg;
- free(p);
- (*func)(arg);
- return 0;
-}
-
-
-int pthread_create(pthread_t *thread_id, const pthread_attr_t *attr,
- pthread_handler func, void *param)
-{
- uintptr_t handle;
- struct thread_start_parameter *par;
- unsigned int stack_size;
- DBUG_ENTER("pthread_create");
-
- par= (struct thread_start_parameter *)malloc(sizeof(*par));
- if (!par)
- goto error_return;
-
- par->func= func;
- par->arg= param;
- stack_size= attr?attr->dwStackSize:0;
-
- handle= _beginthreadex(NULL, stack_size , pthread_start, par, 0, thread_id);
- if (!handle)
- goto error_return;
- DBUG_PRINT("info", ("thread id=%u",*thread_id));
-
- /* Do not need thread handle, close it */
- CloseHandle((HANDLE)handle);
- DBUG_RETURN(0);
-
-error_return:
- DBUG_PRINT("error",
- ("Can't create thread to handle request (error %d)",errno));
- DBUG_RETURN(-1);
-}
-
-
-void pthread_exit(void *a)
-{
- _endthreadex(0);
-}
-
-int pthread_join(pthread_t thread, void **value_ptr)
-{
- DWORD ret;
- HANDLE handle;
-
- handle= OpenThread(SYNCHRONIZE, FALSE, thread);
- if (!handle)
- {
- errno= EINVAL;
- goto error_return;
- }
-
- ret= WaitForSingleObject(handle, INFINITE);
-
- if(ret != WAIT_OBJECT_0)
- {
- errno= EINVAL;
- goto error_return;
- }
-
- CloseHandle(handle);
- return 0;
-
-error_return:
- if(handle)
- CloseHandle(handle);
- return -1;
-}
-
-int pthread_cancel(pthread_t thread)
-{
-
- HANDLE handle= 0;
- BOOL ok= FALSE;
-
- handle= OpenThread(THREAD_TERMINATE, FALSE, thread);
- if (handle)
- {
- ok= TerminateThread(handle,0);
- CloseHandle(handle);
- }
- if (ok)
- return 0;
-
- errno= EINVAL;
- return -1;
-}
-
-/*
- One time initialization. For simplicity, we assume initializer thread
- does not exit within init_routine().
-*/
-int my_pthread_once(my_pthread_once_t *once_control,
- void (*init_routine)(void))
-{
- LONG state;
-
- /*
- Do "dirty" read to find out if initialization is already done, to
- save an interlocked operation in common case. Memory barriers are ensured by
- Visual C++ volatile implementation.
- */
- if (*once_control == MY_PTHREAD_ONCE_DONE)
- return 0;
-
- state= InterlockedCompareExchange(once_control, MY_PTHREAD_ONCE_INPROGRESS,
- MY_PTHREAD_ONCE_INIT);
-
- switch(state)
- {
- case MY_PTHREAD_ONCE_INIT:
- /* This is initializer thread */
- (*init_routine)();
- *once_control= MY_PTHREAD_ONCE_DONE;
- break;
-
- case MY_PTHREAD_ONCE_INPROGRESS:
- /* init_routine in progress. Wait for its completion */
- while(*once_control == MY_PTHREAD_ONCE_INPROGRESS)
- {
- Sleep(1);
- }
- break;
- case MY_PTHREAD_ONCE_DONE:
- /* Nothing to do */
- break;
- }
- return 0;
-}
-#endif