813 lines
27 KiB
C
813 lines
27 KiB
C
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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Defines to make different thread packages compatible */
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#ifndef _my_pthread_h
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#define _my_pthread_h
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#include <errno.h>
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#ifndef ETIME
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#define ETIME ETIMEDOUT /* For FreeBSD */
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#endif
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#ifdef __cplusplus
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#define EXTERNC extern "C"
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extern "C" {
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#else
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#define EXTERNC
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#endif /* __cplusplus */
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/*
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BUG#24507: Race conditions inside current NPTL pthread_exit() implementation.
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If macro NPTL_PTHREAD_EXIT_HACK is defined then a hack described in the bug
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report will be implemented inside my_thread_global_init() in my_thr_init.c.
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This amounts to spawning a dummy thread which does nothing but executes
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pthread_exit(0).
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This bug is fixed in version 2.5 of glibc library.
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TODO: Remove this code when fixed versions of glibc6 are in common use.
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*/
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#if defined(TARGET_OS_LINUX) && defined(HAVE_NPTL) && \
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defined(__GLIBC__) && ( __GLIBC__ < 2 || __GLIBC__ == 2 && __GLIBC_MINOR__ < 5 )
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#define NPTL_PTHREAD_EXIT_BUG 1
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#endif
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#if defined(__WIN__) || defined(OS2)
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#ifdef OS2
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typedef ULONG HANDLE;
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typedef ULONG DWORD;
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typedef int sigset_t;
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#endif
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#ifdef OS2
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typedef HMTX pthread_mutex_t;
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#else
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typedef CRITICAL_SECTION pthread_mutex_t;
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#endif
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typedef HANDLE pthread_t;
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typedef struct thread_attr {
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DWORD dwStackSize ;
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DWORD dwCreatingFlag ;
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int priority ;
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} pthread_attr_t ;
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typedef struct { int dummy; } pthread_condattr_t;
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/* Implementation of posix conditions */
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typedef struct st_pthread_link {
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DWORD thread_id;
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struct st_pthread_link *next;
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} pthread_link;
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typedef struct {
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uint32 waiting;
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CRITICAL_SECTION lock_waiting;
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enum {
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SIGNAL= 0,
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BROADCAST= 1,
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MAX_EVENTS= 2
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} EVENTS;
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HANDLE events[MAX_EVENTS];
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HANDLE broadcast_block_event;
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} pthread_cond_t;
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typedef int pthread_mutexattr_t;
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#define win_pthread_self my_thread_var->pthread_self
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#ifdef OS2
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#define pthread_handler_t EXTERNC void * _Optlink
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typedef void * (_Optlink *pthread_handler)(void *);
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#else
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#define pthread_handler_t EXTERNC void * __cdecl
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typedef void * (__cdecl *pthread_handler)(void *);
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#endif
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/*
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Struct and macros to be used in combination with the
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windows implementation of pthread_cond_timedwait
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*/
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/*
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Declare a union to make sure FILETIME is properly aligned
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so it can be used directly as a 64 bit value. The value
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stored is in 100ns units.
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*/
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union ft64 {
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FILETIME ft;
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__int64 i64;
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};
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struct timespec {
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union ft64 tv;
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/* The max timeout value in millisecond for pthread_cond_timedwait */
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long max_timeout_msec;
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};
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#define set_timespec(ABSTIME,SEC) { \
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GetSystemTimeAsFileTime(&((ABSTIME).tv.ft)); \
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(ABSTIME).tv.i64+= (__int64)(SEC)*10000000; \
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(ABSTIME).max_timeout_msec= (long)((SEC)*1000); \
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}
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#define set_timespec_nsec(ABSTIME,NSEC) { \
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GetSystemTimeAsFileTime(&((ABSTIME).tv.ft)); \
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(ABSTIME).tv.i64+= (__int64)(NSEC)/100; \
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(ABSTIME).max_timeout_msec= (long)((NSEC)/1000000); \
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}
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void win_pthread_init(void);
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int win_pthread_setspecific(void *A,void *B,uint length);
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int pthread_create(pthread_t *,pthread_attr_t *,pthread_handler,void *);
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int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr);
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int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
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int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
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struct timespec *abstime);
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int pthread_cond_signal(pthread_cond_t *cond);
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int pthread_cond_broadcast(pthread_cond_t *cond);
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int pthread_cond_destroy(pthread_cond_t *cond);
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int pthread_attr_init(pthread_attr_t *connect_att);
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int pthread_attr_setstacksize(pthread_attr_t *connect_att,DWORD stack);
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int pthread_attr_setprio(pthread_attr_t *connect_att,int priority);
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int pthread_attr_destroy(pthread_attr_t *connect_att);
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struct tm *localtime_r(const time_t *timep,struct tm *tmp);
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struct tm *gmtime_r(const time_t *timep,struct tm *tmp);
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void pthread_exit(void *a); /* was #define pthread_exit(A) ExitThread(A)*/
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#ifndef OS2
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#define ETIMEDOUT 145 /* Win32 doesn't have this */
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#define getpid() GetCurrentThreadId()
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#endif
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#define pthread_self() win_pthread_self
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#define HAVE_LOCALTIME_R 1
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#define _REENTRANT 1
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#define HAVE_PTHREAD_ATTR_SETSTACKSIZE 1
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#ifdef USE_TLS /* For LIBMYSQL.DLL */
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#undef SAFE_MUTEX /* This will cause conflicts */
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#define pthread_key(T,V) DWORD V
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#define pthread_key_create(A,B) ((*A=TlsAlloc())==0xFFFFFFFF)
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#define pthread_key_delete(A) TlsFree(A)
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#define pthread_getspecific(A) (TlsGetValue(A))
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#define my_pthread_getspecific(T,A) ((T) TlsGetValue(A))
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#define my_pthread_getspecific_ptr(T,V) ((T) TlsGetValue(V))
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#define my_pthread_setspecific_ptr(T,V) (!TlsSetValue((T),(V)))
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#define pthread_setspecific(A,B) (!TlsSetValue((A),(B)))
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#else
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#define pthread_key(T,V) __declspec(thread) T V
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#define pthread_key_create(A,B) pthread_dummy(0)
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#define pthread_key_delete(A) pthread_dummy(0)
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#define pthread_getspecific(A) (&(A))
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#define my_pthread_getspecific(T,A) (&(A))
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#define my_pthread_getspecific_ptr(T,V) (V)
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#define my_pthread_setspecific_ptr(T,V) ((T)=(V),0)
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#define pthread_setspecific(A,B) win_pthread_setspecific(&(A),(B),sizeof(A))
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#endif /* USE_TLS */
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#define pthread_equal(A,B) ((A) == (B))
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#ifdef OS2
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extern int pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *);
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extern int pthread_mutex_lock (pthread_mutex_t *);
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extern int pthread_mutex_unlock (pthread_mutex_t *);
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extern int pthread_mutex_destroy (pthread_mutex_t *);
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#define my_pthread_setprio(A,B) DosSetPriority(PRTYS_THREAD,PRTYC_NOCHANGE, B, A)
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#define pthread_kill(A,B) raise(B)
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#define pthread_exit(A) pthread_dummy()
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#else
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#define pthread_mutex_init(A,B) (InitializeCriticalSection(A),0)
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#define pthread_mutex_lock(A) (EnterCriticalSection(A),0)
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#define pthread_mutex_trylock(A) (WaitForSingleObject((A), 0) == WAIT_TIMEOUT)
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#define pthread_mutex_unlock(A) LeaveCriticalSection(A)
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#define pthread_mutex_destroy(A) DeleteCriticalSection(A)
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#define my_pthread_setprio(A,B) SetThreadPriority(GetCurrentThread(), (B))
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#define pthread_kill(A,B) pthread_dummy(0)
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#endif /* OS2 */
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/* Dummy defines for easier code */
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#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
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#define my_pthread_attr_setprio(A,B) pthread_attr_setprio(A,B)
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#define pthread_attr_setscope(A,B)
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#define pthread_detach_this_thread()
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#define pthread_condattr_init(A)
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#define pthread_condattr_destroy(A)
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#define my_pthread_getprio(thread_id) pthread_dummy(0)
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#elif defined(HAVE_UNIXWARE7_THREADS)
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#include <thread.h>
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#include <synch.h>
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#ifndef _REENTRANT
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#define _REENTRANT
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#endif
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#define HAVE_NONPOSIX_SIGWAIT
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#define pthread_t thread_t
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#define pthread_cond_t cond_t
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#define pthread_mutex_t mutex_t
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#define pthread_key_t thread_key_t
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typedef int pthread_attr_t; /* Needed by Unixware 7.0.0 */
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#define pthread_key_create(A,B) thr_keycreate((A),(B))
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#define pthread_key_delete(A) thr_keydelete(A)
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#define pthread_handler_t EXTERNC void *
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#define pthread_key(T,V) pthread_key_t V
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void * my_pthread_getspecific_imp(pthread_key_t key);
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#define my_pthread_getspecific(A,B) ((A) my_pthread_getspecific_imp(B))
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#define my_pthread_getspecific_ptr(T,V) my_pthread_getspecific(T,V)
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#define pthread_setspecific(A,B) thr_setspecific(A,B)
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#define my_pthread_setspecific_ptr(T,V) pthread_setspecific(T,V)
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#define pthread_create(A,B,C,D) thr_create(NULL,65536L,(C),(D),THR_DETACHED,(A))
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#define pthread_cond_init(a,b) cond_init((a),USYNC_THREAD,NULL)
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#define pthread_cond_destroy(a) cond_destroy(a)
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#define pthread_cond_signal(a) cond_signal(a)
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#define pthread_cond_wait(a,b) cond_wait((a),(b))
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#define pthread_cond_timedwait(a,b,c) cond_timedwait((a),(b),(c))
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#define pthread_cond_broadcast(a) cond_broadcast(a)
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#define pthread_mutex_init(a,b) mutex_init((a),USYNC_THREAD,NULL)
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#define pthread_mutex_lock(a) mutex_lock(a)
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#define pthread_mutex_unlock(a) mutex_unlock(a)
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#define pthread_mutex_destroy(a) mutex_destroy(a)
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#define pthread_self() thr_self()
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#define pthread_exit(A) thr_exit(A)
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#define pthread_equal(A,B) (((A) == (B)) ? 1 : 0)
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#define pthread_kill(A,B) thr_kill((A),(B))
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#define HAVE_PTHREAD_KILL
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#define pthread_sigmask(A,B,C) thr_sigsetmask((A),(B),(C))
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extern int my_sigwait(const sigset_t *set,int *sig);
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#define pthread_detach_this_thread() pthread_dummy(0)
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#define pthread_attr_init(A) pthread_dummy(0)
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#define pthread_attr_destroy(A) pthread_dummy(0)
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#define pthread_attr_setscope(A,B) pthread_dummy(0)
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#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
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#define my_pthread_setprio(A,B) pthread_dummy (0)
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#define my_pthread_getprio(A) pthread_dummy (0)
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#define my_pthread_attr_setprio(A,B) pthread_dummy(0)
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#else /* Normal threads */
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#ifdef HAVE_rts_threads
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#define sigwait org_sigwait
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#include <signal.h>
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#undef sigwait
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#endif
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#include <pthread.h>
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#ifndef _REENTRANT
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#define _REENTRANT
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#endif
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#ifdef HAVE_THR_SETCONCURRENCY
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#include <thread.h> /* Probably solaris */
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#endif
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#ifdef HAVE_SCHED_H
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#include <sched.h>
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#endif
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#ifdef HAVE_SYNCH_H
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#include <synch.h>
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#endif
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#if defined(__EMX__) && (!defined(EMX_PTHREAD_REV) || (EMX_PTHREAD_REV < 2))
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#error Requires at least rev 2 of EMX pthreads library.
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#endif
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#ifdef __NETWARE__
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void my_pthread_exit(void *status);
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#define pthread_exit(A) my_pthread_exit(A)
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#endif
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extern int my_pthread_getprio(pthread_t thread_id);
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#define pthread_key(T,V) pthread_key_t V
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#define my_pthread_getspecific_ptr(T,V) my_pthread_getspecific(T,(V))
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#define my_pthread_setspecific_ptr(T,V) pthread_setspecific(T,(void*) (V))
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#define pthread_detach_this_thread()
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#define pthread_handler_t EXTERNC void *
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typedef void *(* pthread_handler)(void *);
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/* Test first for RTS or FSU threads */
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#if defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM)
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#define HAVE_rts_threads
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extern int my_pthread_create_detached;
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#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
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#define PTHREAD_CREATE_DETACHED &my_pthread_create_detached
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#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_GLOBAL
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#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_LOCAL
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#define USE_ALARM_THREAD
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#elif defined(HAVE_mit_thread)
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#define USE_ALARM_THREAD
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#undef HAVE_LOCALTIME_R
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#define HAVE_LOCALTIME_R
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#undef HAVE_GMTIME_R
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#define HAVE_GMTIME_R
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#undef HAVE_PTHREAD_ATTR_SETSCOPE
|
||
|
|
#define HAVE_PTHREAD_ATTR_SETSCOPE
|
||
|
|
#undef HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE /* If we are running linux */
|
||
|
|
#undef HAVE_RWLOCK_T
|
||
|
|
#undef HAVE_RWLOCK_INIT
|
||
|
|
#undef HAVE_PTHREAD_RWLOCK_RDLOCK
|
||
|
|
#undef HAVE_SNPRINTF
|
||
|
|
|
||
|
|
#define my_pthread_attr_setprio(A,B)
|
||
|
|
#endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
|
||
|
|
|
||
|
|
#if defined(_BSDI_VERSION) && _BSDI_VERSION < 199910
|
||
|
|
int sigwait(sigset_t *set, int *sig);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef HAVE_NONPOSIX_SIGWAIT
|
||
|
|
#define my_sigwait(A,B) sigwait((A),(B))
|
||
|
|
#else
|
||
|
|
int my_sigwait(const sigset_t *set,int *sig);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_NONPOSIX_PTHREAD_MUTEX_INIT
|
||
|
|
#ifndef SAFE_MUTEX
|
||
|
|
#define pthread_mutex_init(a,b) my_pthread_mutex_init((a),(b))
|
||
|
|
extern int my_pthread_mutex_init(pthread_mutex_t *mp,
|
||
|
|
const pthread_mutexattr_t *attr);
|
||
|
|
#endif /* SAFE_MUTEX */
|
||
|
|
#define pthread_cond_init(a,b) my_pthread_cond_init((a),(b))
|
||
|
|
extern int my_pthread_cond_init(pthread_cond_t *mp,
|
||
|
|
const pthread_condattr_t *attr);
|
||
|
|
#endif /* HAVE_NONPOSIX_PTHREAD_MUTEX_INIT */
|
||
|
|
|
||
|
|
#if defined(HAVE_SIGTHREADMASK) && !defined(HAVE_PTHREAD_SIGMASK)
|
||
|
|
#define pthread_sigmask(A,B,C) sigthreadmask((A),(B),(C))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX)
|
||
|
|
int sigwait(sigset_t *setp, int *sigp); /* Use our implemention */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
We define my_sigset() and use that instead of the system sigset() so that
|
||
|
|
we can favor an implementation based on sigaction(). On some systems, such
|
||
|
|
as Mac OS X, sigset() results in flags such as SA_RESTART being set, and
|
||
|
|
we want to make sure that no such flags are set.
|
||
|
|
*/
|
||
|
|
#if defined(HAVE_SIGACTION) && !defined(my_sigset)
|
||
|
|
#define my_sigset(A,B) do { struct sigaction l_s; sigset_t l_set; int l_rc; \
|
||
|
|
DBUG_ASSERT((A) != 0); \
|
||
|
|
sigemptyset(&l_set); \
|
||
|
|
l_s.sa_handler = (B); \
|
||
|
|
l_s.sa_mask = l_set; \
|
||
|
|
l_s.sa_flags = 0; \
|
||
|
|
l_rc= sigaction((A), &l_s, (struct sigaction *) NULL);\
|
||
|
|
DBUG_ASSERT(l_rc == 0); \
|
||
|
|
} while (0)
|
||
|
|
#elif defined(HAVE_SIGSET) && !defined(my_sigset)
|
||
|
|
#define my_sigset(A,B) sigset((A),(B))
|
||
|
|
#elif !defined(my_sigset)
|
||
|
|
#define my_sigset(A,B) signal((A),(B))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef my_pthread_setprio
|
||
|
|
#if defined(HAVE_PTHREAD_SETPRIO_NP) /* FSU threads */
|
||
|
|
#define my_pthread_setprio(A,B) pthread_setprio_np((A),(B))
|
||
|
|
#elif defined(HAVE_PTHREAD_SETPRIO)
|
||
|
|
#define my_pthread_setprio(A,B) pthread_setprio((A),(B))
|
||
|
|
#else
|
||
|
|
extern void my_pthread_setprio(pthread_t thread_id,int prior);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef my_pthread_attr_setprio
|
||
|
|
#ifdef HAVE_PTHREAD_ATTR_SETPRIO
|
||
|
|
#define my_pthread_attr_setprio(A,B) pthread_attr_setprio((A),(B))
|
||
|
|
#else
|
||
|
|
extern void my_pthread_attr_setprio(pthread_attr_t *attr, int priority);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(HAVE_PTHREAD_ATTR_SETSCOPE) || defined(HAVE_DEC_3_2_THREADS)
|
||
|
|
#define pthread_attr_setscope(A,B)
|
||
|
|
#undef HAVE_GETHOSTBYADDR_R /* No definition */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(HAVE_BROKEN_PTHREAD_COND_TIMEDWAIT) && !defined(SAFE_MUTEX)
|
||
|
|
extern int my_pthread_cond_timedwait(pthread_cond_t *cond,
|
||
|
|
pthread_mutex_t *mutex,
|
||
|
|
struct timespec *abstime);
|
||
|
|
#define pthread_cond_timedwait(A,B,C) my_pthread_cond_timedwait((A),(B),(C))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(OS2)
|
||
|
|
#define my_pthread_getspecific(T,A) ((T) &(A))
|
||
|
|
#define pthread_setspecific(A,B) win_pthread_setspecific(&(A),(B),sizeof(A))
|
||
|
|
#elif !defined( HAVE_NONPOSIX_PTHREAD_GETSPECIFIC)
|
||
|
|
#define my_pthread_getspecific(A,B) ((A) pthread_getspecific(B))
|
||
|
|
#else
|
||
|
|
#define my_pthread_getspecific(A,B) ((A) my_pthread_getspecific_imp(B))
|
||
|
|
void *my_pthread_getspecific_imp(pthread_key_t key);
|
||
|
|
#endif /* OS2 */
|
||
|
|
|
||
|
|
#ifndef HAVE_LOCALTIME_R
|
||
|
|
struct tm *localtime_r(const time_t *clock, struct tm *res);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef HAVE_GMTIME_R
|
||
|
|
struct tm *gmtime_r(const time_t *clock, struct tm *res);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_PTHREAD_CONDATTR_CREATE
|
||
|
|
/* DCE threads on HPUX 10.20 */
|
||
|
|
#define pthread_condattr_init pthread_condattr_create
|
||
|
|
#define pthread_condattr_destroy pthread_condattr_delete
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* FSU THREADS */
|
||
|
|
#if !defined(HAVE_PTHREAD_KEY_DELETE) && !defined(pthread_key_delete)
|
||
|
|
#define pthread_key_delete(A) pthread_dummy(0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_CTHREADS_WRAPPER /* For MacOSX */
|
||
|
|
#define pthread_cond_destroy(A) pthread_dummy(0)
|
||
|
|
#define pthread_mutex_destroy(A) pthread_dummy(0)
|
||
|
|
#define pthread_attr_delete(A) pthread_dummy(0)
|
||
|
|
#define pthread_condattr_delete(A) pthread_dummy(0)
|
||
|
|
#define pthread_attr_setstacksize(A,B) pthread_dummy(0)
|
||
|
|
#define pthread_equal(A,B) ((A) == (B))
|
||
|
|
#define pthread_cond_timedwait(a,b,c) pthread_cond_wait((a),(b))
|
||
|
|
#define pthread_attr_init(A) pthread_attr_create(A)
|
||
|
|
#define pthread_attr_destroy(A) pthread_attr_delete(A)
|
||
|
|
#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
|
||
|
|
#define pthread_create(A,B,C,D) pthread_create((A),*(B),(C),(D))
|
||
|
|
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
|
||
|
|
#define pthread_kill(A,B) pthread_dummy(0)
|
||
|
|
#undef pthread_detach_this_thread
|
||
|
|
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(&tmp); }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_DARWIN5_THREADS
|
||
|
|
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
|
||
|
|
#define pthread_kill(A,B) pthread_dummy(0)
|
||
|
|
#define pthread_condattr_init(A) pthread_dummy(0)
|
||
|
|
#define pthread_condattr_destroy(A) pthread_dummy(0)
|
||
|
|
#undef pthread_detach_this_thread
|
||
|
|
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if ((defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT)) || defined(HAVE_DEC_3_2_THREADS)) && !defined(HAVE_CTHREADS_WRAPPER)
|
||
|
|
/* This is set on AIX_3_2 and Siemens unix (and DEC OSF/1 3.2 too) */
|
||
|
|
#define pthread_key_create(A,B) \
|
||
|
|
pthread_keycreate(A,(B) ?\
|
||
|
|
(pthread_destructor_t) (B) :\
|
||
|
|
(pthread_destructor_t) pthread_dummy)
|
||
|
|
#define pthread_attr_init(A) pthread_attr_create(A)
|
||
|
|
#define pthread_attr_destroy(A) pthread_attr_delete(A)
|
||
|
|
#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
|
||
|
|
#define pthread_create(A,B,C,D) pthread_create((A),*(B),(C),(D))
|
||
|
|
#ifndef pthread_sigmask
|
||
|
|
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
|
||
|
|
#endif
|
||
|
|
#define pthread_kill(A,B) pthread_dummy(0)
|
||
|
|
#undef pthread_detach_this_thread
|
||
|
|
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(&tmp); }
|
||
|
|
#elif !defined(__NETWARE__) /* HAVE_PTHREAD_ATTR_CREATE && !HAVE_SIGWAIT */
|
||
|
|
#define HAVE_PTHREAD_KILL
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* defined(__WIN__) */
|
||
|
|
|
||
|
|
#if defined(HPUX10) && !defined(DONT_REMAP_PTHREAD_FUNCTIONS)
|
||
|
|
#undef pthread_cond_timedwait
|
||
|
|
#define pthread_cond_timedwait(a,b,c) my_pthread_cond_timedwait((a),(b),(c))
|
||
|
|
int my_pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
|
||
|
|
struct timespec *abstime);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(HPUX10)
|
||
|
|
#define pthread_attr_getstacksize(A,B) my_pthread_attr_getstacksize(A,B)
|
||
|
|
void my_pthread_attr_getstacksize(pthread_attr_t *attrib, size_t *size);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(HAVE_POSIX1003_4a_MUTEX) && !defined(DONT_REMAP_PTHREAD_FUNCTIONS)
|
||
|
|
#undef pthread_mutex_trylock
|
||
|
|
#define pthread_mutex_trylock(a) my_pthread_mutex_trylock((a))
|
||
|
|
int my_pthread_mutex_trylock(pthread_mutex_t *mutex);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
The defines set_timespec and set_timespec_nsec should be used
|
||
|
|
for calculating an absolute time at which
|
||
|
|
pthread_cond_timedwait should timeout
|
||
|
|
*/
|
||
|
|
#ifdef HAVE_TIMESPEC_TS_SEC
|
||
|
|
#ifndef set_timespec
|
||
|
|
#define set_timespec(ABSTIME,SEC) \
|
||
|
|
{ \
|
||
|
|
(ABSTIME).ts_sec=time(0) + (time_t) (SEC); \
|
||
|
|
(ABSTIME).ts_nsec=0; \
|
||
|
|
}
|
||
|
|
#endif /* !set_timespec */
|
||
|
|
#ifndef set_timespec_nsec
|
||
|
|
#define set_timespec_nsec(ABSTIME,NSEC) \
|
||
|
|
{ \
|
||
|
|
ulonglong now= my_getsystime() + (NSEC/100); \
|
||
|
|
(ABSTIME).ts_sec= (now / ULL(10000000)); \
|
||
|
|
(ABSTIME).ts_nsec= (now % ULL(10000000) * 100 + ((NSEC) % 100)); \
|
||
|
|
}
|
||
|
|
#endif /* !set_timespec_nsec */
|
||
|
|
#else
|
||
|
|
#ifndef set_timespec
|
||
|
|
#define set_timespec(ABSTIME,SEC) \
|
||
|
|
{\
|
||
|
|
struct timeval tv;\
|
||
|
|
gettimeofday(&tv,0);\
|
||
|
|
(ABSTIME).tv_sec=tv.tv_sec+(time_t) (SEC);\
|
||
|
|
(ABSTIME).tv_nsec=tv.tv_usec*1000;\
|
||
|
|
}
|
||
|
|
#endif /* !set_timespec */
|
||
|
|
#ifndef set_timespec_nsec
|
||
|
|
#define set_timespec_nsec(ABSTIME,NSEC) \
|
||
|
|
{\
|
||
|
|
ulonglong now= my_getsystime() + (NSEC/100); \
|
||
|
|
(ABSTIME).tv_sec= (time_t) (now / ULL(10000000)); \
|
||
|
|
(ABSTIME).tv_nsec= (long) (now % ULL(10000000) * 100 + ((NSEC) % 100)); \
|
||
|
|
}
|
||
|
|
#endif /* !set_timespec_nsec */
|
||
|
|
#endif /* HAVE_TIMESPEC_TS_SEC */
|
||
|
|
|
||
|
|
/* safe_mutex adds checking to mutex for easier debugging */
|
||
|
|
|
||
|
|
#if defined(__NETWARE__) && !defined(SAFE_MUTEX_DETECT_DESTROY)
|
||
|
|
#define SAFE_MUTEX_DETECT_DESTROY
|
||
|
|
#endif
|
||
|
|
|
||
|
|
typedef struct st_safe_mutex_t
|
||
|
|
{
|
||
|
|
pthread_mutex_t global,mutex;
|
||
|
|
const char *file;
|
||
|
|
uint line,count;
|
||
|
|
pthread_t thread;
|
||
|
|
#ifdef SAFE_MUTEX_DETECT_DESTROY
|
||
|
|
struct st_safe_mutex_info_t *info; /* to track destroying of mutexes */
|
||
|
|
#endif
|
||
|
|
} safe_mutex_t;
|
||
|
|
|
||
|
|
#ifdef SAFE_MUTEX_DETECT_DESTROY
|
||
|
|
/*
|
||
|
|
Used to track the destroying of mutexes. This needs to be a seperate
|
||
|
|
structure because the safe_mutex_t structure could be freed before
|
||
|
|
the mutexes are destroyed.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct st_safe_mutex_info_t
|
||
|
|
{
|
||
|
|
struct st_safe_mutex_info_t *next;
|
||
|
|
struct st_safe_mutex_info_t *prev;
|
||
|
|
const char *init_file;
|
||
|
|
uint32 init_line;
|
||
|
|
} safe_mutex_info_t;
|
||
|
|
#endif /* SAFE_MUTEX_DETECT_DESTROY */
|
||
|
|
|
||
|
|
int safe_mutex_init(safe_mutex_t *mp, const pthread_mutexattr_t *attr,
|
||
|
|
const char *file, uint line);
|
||
|
|
int safe_mutex_lock(safe_mutex_t *mp,const char *file, uint line);
|
||
|
|
int safe_mutex_unlock(safe_mutex_t *mp,const char *file, uint line);
|
||
|
|
int safe_mutex_destroy(safe_mutex_t *mp,const char *file, uint line);
|
||
|
|
int safe_cond_wait(pthread_cond_t *cond, safe_mutex_t *mp,const char *file,
|
||
|
|
uint line);
|
||
|
|
int safe_cond_timedwait(pthread_cond_t *cond, safe_mutex_t *mp,
|
||
|
|
struct timespec *abstime, const char *file, uint line);
|
||
|
|
void safe_mutex_global_init(void);
|
||
|
|
void safe_mutex_end(FILE *file);
|
||
|
|
|
||
|
|
/* Wrappers if safe mutex is actually used */
|
||
|
|
#ifdef SAFE_MUTEX
|
||
|
|
#undef pthread_mutex_init
|
||
|
|
#undef pthread_mutex_lock
|
||
|
|
#undef pthread_mutex_unlock
|
||
|
|
#undef pthread_mutex_destroy
|
||
|
|
#undef pthread_mutex_wait
|
||
|
|
#undef pthread_mutex_timedwait
|
||
|
|
#undef pthread_mutex_t
|
||
|
|
#undef pthread_cond_wait
|
||
|
|
#undef pthread_cond_timedwait
|
||
|
|
#undef pthread_mutex_trylock
|
||
|
|
#define pthread_mutex_init(A,B) safe_mutex_init((A),(B),__FILE__,__LINE__)
|
||
|
|
#define pthread_mutex_lock(A) safe_mutex_lock((A),__FILE__,__LINE__)
|
||
|
|
#define pthread_mutex_unlock(A) safe_mutex_unlock((A),__FILE__,__LINE__)
|
||
|
|
#define pthread_mutex_destroy(A) safe_mutex_destroy((A),__FILE__,__LINE__)
|
||
|
|
#define pthread_cond_wait(A,B) safe_cond_wait((A),(B),__FILE__,__LINE__)
|
||
|
|
#define pthread_cond_timedwait(A,B,C) safe_cond_timedwait((A),(B),(C),__FILE__,__LINE__)
|
||
|
|
#define pthread_mutex_trylock(A) pthread_mutex_lock(A)
|
||
|
|
#define pthread_mutex_t safe_mutex_t
|
||
|
|
#define safe_mutex_assert_owner(mp) \
|
||
|
|
DBUG_ASSERT((mp)->count > 0 && \
|
||
|
|
pthread_equal(pthread_self(), (mp)->thread))
|
||
|
|
#define safe_mutex_assert_not_owner(mp) \
|
||
|
|
DBUG_ASSERT(! (mp)->count || \
|
||
|
|
! pthread_equal(pthread_self(), (mp)->thread))
|
||
|
|
#else
|
||
|
|
#define safe_mutex_assert_owner(mp)
|
||
|
|
#define safe_mutex_assert_not_owner(mp)
|
||
|
|
#endif /* SAFE_MUTEX */
|
||
|
|
|
||
|
|
/* READ-WRITE thread locking */
|
||
|
|
|
||
|
|
#ifdef HAVE_BROKEN_RWLOCK /* For OpenUnix */
|
||
|
|
#undef HAVE_PTHREAD_RWLOCK_RDLOCK
|
||
|
|
#undef HAVE_RWLOCK_INIT
|
||
|
|
#undef HAVE_RWLOCK_T
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(USE_MUTEX_INSTEAD_OF_RW_LOCKS)
|
||
|
|
/* use these defs for simple mutex locking */
|
||
|
|
#define rw_lock_t pthread_mutex_t
|
||
|
|
#define my_rwlock_init(A,B) pthread_mutex_init((A),(B))
|
||
|
|
#define rw_rdlock(A) pthread_mutex_lock((A))
|
||
|
|
#define rw_wrlock(A) pthread_mutex_lock((A))
|
||
|
|
#define rw_tryrdlock(A) pthread_mutex_trylock((A))
|
||
|
|
#define rw_trywrlock(A) pthread_mutex_trylock((A))
|
||
|
|
#define rw_unlock(A) pthread_mutex_unlock((A))
|
||
|
|
#define rwlock_destroy(A) pthread_mutex_destroy((A))
|
||
|
|
#elif defined(HAVE_PTHREAD_RWLOCK_RDLOCK)
|
||
|
|
#define rw_lock_t pthread_rwlock_t
|
||
|
|
#define my_rwlock_init(A,B) pthread_rwlock_init((A),(B))
|
||
|
|
#define rw_rdlock(A) pthread_rwlock_rdlock(A)
|
||
|
|
#define rw_wrlock(A) pthread_rwlock_wrlock(A)
|
||
|
|
#define rw_tryrdlock(A) pthread_rwlock_tryrdlock((A))
|
||
|
|
#define rw_trywrlock(A) pthread_rwlock_trywrlock((A))
|
||
|
|
#define rw_unlock(A) pthread_rwlock_unlock(A)
|
||
|
|
#define rwlock_destroy(A) pthread_rwlock_destroy(A)
|
||
|
|
#elif defined(HAVE_RWLOCK_INIT)
|
||
|
|
#ifdef HAVE_RWLOCK_T /* For example Solaris 2.6-> */
|
||
|
|
#define rw_lock_t rwlock_t
|
||
|
|
#endif
|
||
|
|
#define my_rwlock_init(A,B) rwlock_init((A),USYNC_THREAD,0)
|
||
|
|
#else
|
||
|
|
/* Use our own version of read/write locks */
|
||
|
|
typedef struct _my_rw_lock_t {
|
||
|
|
pthread_mutex_t lock; /* lock for structure */
|
||
|
|
pthread_cond_t readers; /* waiting readers */
|
||
|
|
pthread_cond_t writers; /* waiting writers */
|
||
|
|
int state; /* -1:writer,0:free,>0:readers */
|
||
|
|
int waiters; /* number of waiting writers */
|
||
|
|
} my_rw_lock_t;
|
||
|
|
|
||
|
|
#define rw_lock_t my_rw_lock_t
|
||
|
|
#define rw_rdlock(A) my_rw_rdlock((A))
|
||
|
|
#define rw_wrlock(A) my_rw_wrlock((A))
|
||
|
|
#define rw_tryrdlock(A) my_rw_tryrdlock((A))
|
||
|
|
#define rw_trywrlock(A) my_rw_trywrlock((A))
|
||
|
|
#define rw_unlock(A) my_rw_unlock((A))
|
||
|
|
#define rwlock_destroy(A) my_rwlock_destroy((A))
|
||
|
|
|
||
|
|
extern int my_rwlock_init(my_rw_lock_t *, void *);
|
||
|
|
extern int my_rwlock_destroy(my_rw_lock_t *);
|
||
|
|
extern int my_rw_rdlock(my_rw_lock_t *);
|
||
|
|
extern int my_rw_wrlock(my_rw_lock_t *);
|
||
|
|
extern int my_rw_unlock(my_rw_lock_t *);
|
||
|
|
extern int my_rw_tryrdlock(my_rw_lock_t *);
|
||
|
|
extern int my_rw_trywrlock(my_rw_lock_t *);
|
||
|
|
#endif /* USE_MUTEX_INSTEAD_OF_RW_LOCKS */
|
||
|
|
|
||
|
|
#define GETHOSTBYADDR_BUFF_SIZE 2048
|
||
|
|
|
||
|
|
#ifndef HAVE_THR_SETCONCURRENCY
|
||
|
|
#define thr_setconcurrency(A) pthread_dummy(0)
|
||
|
|
#endif
|
||
|
|
#if !defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) && ! defined(pthread_attr_setstacksize)
|
||
|
|
#define pthread_attr_setstacksize(A,B) pthread_dummy(0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Define mutex types, see my_thr_init.c */
|
||
|
|
#define MY_MUTEX_INIT_SLOW NULL
|
||
|
|
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
|
||
|
|
extern pthread_mutexattr_t my_fast_mutexattr;
|
||
|
|
#define MY_MUTEX_INIT_FAST &my_fast_mutexattr
|
||
|
|
#else
|
||
|
|
#define MY_MUTEX_INIT_FAST NULL
|
||
|
|
#endif
|
||
|
|
#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
|
||
|
|
extern pthread_mutexattr_t my_errorcheck_mutexattr;
|
||
|
|
#define MY_MUTEX_INIT_ERRCHK &my_errorcheck_mutexattr
|
||
|
|
#else
|
||
|
|
#define MY_MUTEX_INIT_ERRCHK NULL
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern my_bool my_thread_global_init(void);
|
||
|
|
extern void my_thread_global_end(void);
|
||
|
|
extern my_bool my_thread_init(void);
|
||
|
|
extern void my_thread_end(void);
|
||
|
|
extern const char *my_thread_name(void);
|
||
|
|
extern long my_thread_id(void);
|
||
|
|
extern int pthread_no_free(void *);
|
||
|
|
extern int pthread_dummy(int);
|
||
|
|
|
||
|
|
/* All thread specific variables are in the following struct */
|
||
|
|
|
||
|
|
#define THREAD_NAME_SIZE 10
|
||
|
|
#ifndef DEFAULT_THREAD_STACK
|
||
|
|
#if SIZEOF_CHARP > 4
|
||
|
|
/*
|
||
|
|
MySQL can survive with 32K, but some glibc libraries require > 128K stack
|
||
|
|
To resolve hostnames. Also recursive stored procedures needs stack.
|
||
|
|
*/
|
||
|
|
#define DEFAULT_THREAD_STACK (256*1024L)
|
||
|
|
#else
|
||
|
|
#define DEFAULT_THREAD_STACK (192*1024)
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct st_my_thread_var
|
||
|
|
{
|
||
|
|
int thr_errno;
|
||
|
|
pthread_cond_t suspend;
|
||
|
|
pthread_mutex_t mutex;
|
||
|
|
pthread_mutex_t * volatile current_mutex;
|
||
|
|
pthread_cond_t * volatile current_cond;
|
||
|
|
pthread_t pthread_self;
|
||
|
|
long id;
|
||
|
|
int cmp_length;
|
||
|
|
int volatile abort;
|
||
|
|
my_bool init;
|
||
|
|
struct st_my_thread_var *next,**prev;
|
||
|
|
void *opt_info;
|
||
|
|
#ifndef DBUG_OFF
|
||
|
|
gptr dbug;
|
||
|
|
char name[THREAD_NAME_SIZE+1];
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct st_my_thread_var *_my_thread_var(void) __attribute__ ((const));
|
||
|
|
extern uint my_thread_end_wait_time;
|
||
|
|
#define my_thread_var (_my_thread_var())
|
||
|
|
#define my_errno my_thread_var->thr_errno
|
||
|
|
/*
|
||
|
|
Keep track of shutdown,signal, and main threads so that my_end() will not
|
||
|
|
report errors with them
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Which kind of thread library is in use */
|
||
|
|
|
||
|
|
#define THD_LIB_OTHER 1
|
||
|
|
#define THD_LIB_NPTL 2
|
||
|
|
#define THD_LIB_LT 4
|
||
|
|
|
||
|
|
extern uint thd_lib_detected;
|
||
|
|
|
||
|
|
/* statistics_xxx functions are for not essential statistic */
|
||
|
|
|
||
|
|
#ifndef thread_safe_increment
|
||
|
|
#ifdef HAVE_ATOMIC_ADD
|
||
|
|
#define thread_safe_increment(V,L) atomic_inc((atomic_t*) &V)
|
||
|
|
#define thread_safe_decrement(V,L) atomic_dec((atomic_t*) &V)
|
||
|
|
#define thread_safe_add(V,C,L) atomic_add((C),(atomic_t*) &V)
|
||
|
|
#define thread_safe_sub(V,C,L) atomic_sub((C),(atomic_t*) &V)
|
||
|
|
#else
|
||
|
|
#define thread_safe_increment(V,L) \
|
||
|
|
(pthread_mutex_lock((L)), (V)++, pthread_mutex_unlock((L)))
|
||
|
|
#define thread_safe_decrement(V,L) \
|
||
|
|
(pthread_mutex_lock((L)), (V)--, pthread_mutex_unlock((L)))
|
||
|
|
#define thread_safe_add(V,C,L) (pthread_mutex_lock((L)), (V)+=(C), pthread_mutex_unlock((L)))
|
||
|
|
#define thread_safe_sub(V,C,L) \
|
||
|
|
(pthread_mutex_lock((L)), (V)-=(C), pthread_mutex_unlock((L)))
|
||
|
|
#endif /* HAVE_ATOMIC_ADD */
|
||
|
|
#ifdef SAFE_STATISTICS
|
||
|
|
#define statistic_increment(V,L) thread_safe_increment((V),(L))
|
||
|
|
#define statistic_decrement(V,L) thread_safe_decrement((V),(L))
|
||
|
|
#define statistic_add(V,C,L) thread_safe_add((V),(C),(L))
|
||
|
|
#else
|
||
|
|
#define statistic_decrement(V,L) (V)--
|
||
|
|
#define statistic_increment(V,L) (V)++
|
||
|
|
#define statistic_add(V,C,L) (V)+=(C)
|
||
|
|
#endif /* SAFE_STATISTICS */
|
||
|
|
#endif /* thread_safe_increment */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /* _my_ptread_h */
|