diff options
Diffstat (limited to 'src/mysql/my_pthread.h')
| -rw-r--r-- | src/mysql/my_pthread.h | 717 |
1 files changed, 0 insertions, 717 deletions
diff --git a/src/mysql/my_pthread.h b/src/mysql/my_pthread.h deleted file mode 100644 index 202e047dc..000000000 --- a/src/mysql/my_pthread.h +++ /dev/null @@ -1,717 +0,0 @@ -/* Copyright (C) 2000 MySQL AB - - 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; either version 2 of the License, or - (at your option) any later version. - - 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 */ - -/* Defines to make different thread packages compatible */ - -#ifndef _my_pthread_h -#define _my_pthread_h - -#include <errno.h> -#ifndef ETIME -#define ETIME ETIMEDOUT /* For FreeBSD */ -#endif - -#ifdef __cplusplus -#define EXTERNC extern "C" -extern "C" { -#else -#define EXTERNC -#endif /* __cplusplus */ - -#if defined(__WIN__) || defined(OS2) - -#ifdef OS2 -typedef ULONG HANDLE; -typedef ULONG DWORD; -typedef int sigset_t; -#endif - -#ifdef OS2 -typedef HMTX pthread_mutex_t; -#else -typedef CRITICAL_SECTION pthread_mutex_t; -#endif -typedef HANDLE pthread_t; -typedef struct thread_attr { - DWORD dwStackSize ; - DWORD dwCreatingFlag ; - int priority ; -} pthread_attr_t ; - -typedef struct { int dummy; } pthread_condattr_t; - -/* Implementation of posix conditions */ - -typedef struct st_pthread_link { - DWORD thread_id; - struct st_pthread_link *next; -} pthread_link; - -typedef struct { - uint32 waiting; -#ifdef OS2 - HEV semaphore; -#else - HANDLE semaphore; -#endif -} pthread_cond_t; - - -#ifndef OS2 -struct timespec { /* For pthread_cond_timedwait() */ - time_t tv_sec; - long tv_nsec; -}; -#endif - -typedef int pthread_mutexattr_t; -#define win_pthread_self my_thread_var->pthread_self -#ifdef OS2 -#define pthread_handler_t EXTERNC void * _Optlink -typedef void * (_Optlink *pthread_handler)(void *); -#else -#define pthread_handler_t EXTERNC void * __cdecl -typedef void * (__cdecl *pthread_handler)(void *); -#endif - -void win_pthread_init(void); -int win_pthread_setspecific(void *A,void *B,uint length); -int pthread_create(pthread_t *,pthread_attr_t *,pthread_handler,void *); -int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr); -int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); -int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, - struct timespec *abstime); -int pthread_cond_signal(pthread_cond_t *cond); -int pthread_cond_broadcast(pthread_cond_t *cond); -int pthread_cond_destroy(pthread_cond_t *cond); -int pthread_attr_init(pthread_attr_t *connect_att); -int pthread_attr_setstacksize(pthread_attr_t *connect_att,DWORD stack); -int pthread_attr_setprio(pthread_attr_t *connect_att,int priority); -int pthread_attr_destroy(pthread_attr_t *connect_att); -struct tm *localtime_r(const time_t *timep,struct tm *tmp); -struct tm *gmtime_r(const time_t *timep,struct tm *tmp); - - -void pthread_exit(void *a); /* was #define pthread_exit(A) ExitThread(A)*/ - -#ifndef OS2 -#define ETIMEDOUT 145 /* Win32 doesn't have this */ -#define getpid() GetCurrentThreadId() -#endif -#define pthread_self() win_pthread_self -#define HAVE_LOCALTIME_R 1 -#define _REENTRANT 1 -#define HAVE_PTHREAD_ATTR_SETSTACKSIZE 1 - -#ifdef USE_TLS /* For LIBMYSQL.DLL */ -#undef SAFE_MUTEX /* This will cause conflicts */ -#define pthread_key(T,V) DWORD V -#define pthread_key_create(A,B) ((*A=TlsAlloc())==0xFFFFFFFF) -#define pthread_key_delete(A) TlsFree(A) -#define pthread_getspecific(A) (TlsGetValue(A)) -#define my_pthread_getspecific(T,A) ((T) TlsGetValue(A)) -#define my_pthread_getspecific_ptr(T,V) ((T) TlsGetValue(V)) -#define my_pthread_setspecific_ptr(T,V) (!TlsSetValue((T),(V))) -#define pthread_setspecific(A,B) (!TlsSetValue((A),(B))) -#else -#define pthread_key(T,V) __declspec(thread) T V -#define pthread_key_create(A,B) pthread_dummy(0) -#define pthread_key_delete(A) pthread_dummy(0) -#define pthread_getspecific(A) (&(A)) -#define my_pthread_getspecific(T,A) (&(A)) -#define my_pthread_getspecific_ptr(T,V) (V) -#define my_pthread_setspecific_ptr(T,V) ((T)=(V),0) -#define pthread_setspecific(A,B) win_pthread_setspecific(&(A),(B),sizeof(A)) -#endif /* USE_TLS */ - -#define pthread_equal(A,B) ((A) == (B)) -#ifdef OS2 -extern int pthread_mutex_init (pthread_mutex_t *, const pthread_mutexattr_t *); -extern int pthread_mutex_lock (pthread_mutex_t *); -extern int pthread_mutex_unlock (pthread_mutex_t *); -extern int pthread_mutex_destroy (pthread_mutex_t *); -#define my_pthread_setprio(A,B) DosSetPriority(PRTYS_THREAD,PRTYC_NOCHANGE, B, A) -#define pthread_kill(A,B) raise(B) -#define pthread_exit(A) pthread_dummy() -#else -#define pthread_mutex_init(A,B) (InitializeCriticalSection(A),0) -#define pthread_mutex_lock(A) (EnterCriticalSection(A),0) -#define pthread_mutex_trylock(A) (WaitForSingleObject((A), 0) == WAIT_TIMEOUT) -#define pthread_mutex_unlock(A) LeaveCriticalSection(A) -#define pthread_mutex_destroy(A) DeleteCriticalSection(A) -#define my_pthread_setprio(A,B) SetThreadPriority(GetCurrentThread(), (B)) -#define pthread_kill(A,B) pthread_dummy(0) -#endif /* OS2 */ - -/* Dummy defines for easier code */ -#define pthread_attr_setdetachstate(A,B) pthread_dummy(0) -#define my_pthread_attr_setprio(A,B) pthread_attr_setprio(A,B) -#define pthread_attr_setscope(A,B) -#define pthread_detach_this_thread() -#define pthread_condattr_init(A) -#define pthread_condattr_destroy(A) - -/*Irena: compiler does not like this: */ -/*#define my_pthread_getprio(pthread_t thread_id) pthread_dummy(0) */ -#define my_pthread_getprio(thread_id) pthread_dummy(0) - -#elif defined(HAVE_UNIXWARE7_THREADS) - -#include <thread.h> -#include <synch.h> - -#ifndef _REENTRANT -#define _REENTRANT -#endif - -#define HAVE_NONPOSIX_SIGWAIT -#define pthread_t thread_t -#define pthread_cond_t cond_t -#define pthread_mutex_t mutex_t -#define pthread_key_t thread_key_t -typedef int pthread_attr_t; /* Needed by Unixware 7.0.0 */ - -#define pthread_key_create(A,B) thr_keycreate((A),(B)) -#define pthread_key_delete(A) thr_keydelete(A) - -#define pthread_handler_t EXTERNC void * -#define pthread_key(T,V) pthread_key_t V - -void * my_pthread_getspecific_imp(pthread_key_t key); -#define my_pthread_getspecific(A,B) ((A) my_pthread_getspecific_imp(B)) -#define my_pthread_getspecific_ptr(T,V) my_pthread_getspecific(T,V) - -#define pthread_setspecific(A,B) thr_setspecific(A,B) -#define my_pthread_setspecific_ptr(T,V) pthread_setspecific(T,V) - -#define pthread_create(A,B,C,D) thr_create(NULL,65536L,(C),(D),THR_DETACHED,(A)) -#define pthread_cond_init(a,b) cond_init((a),USYNC_THREAD,NULL) -#define pthread_cond_destroy(a) cond_destroy(a) -#define pthread_cond_signal(a) cond_signal(a) -#define pthread_cond_wait(a,b) cond_wait((a),(b)) -#define pthread_cond_timedwait(a,b,c) cond_timedwait((a),(b),(c)) -#define pthread_cond_broadcast(a) cond_broadcast(a) - -#define pthread_mutex_init(a,b) mutex_init((a),USYNC_THREAD,NULL) -#define pthread_mutex_lock(a) mutex_lock(a) -#define pthread_mutex_unlock(a) mutex_unlock(a) -#define pthread_mutex_destroy(a) mutex_destroy(a) - -#define pthread_self() thr_self() -#define pthread_exit(A) thr_exit(A) -#define pthread_equal(A,B) (((A) == (B)) ? 1 : 0) -#define pthread_kill(A,B) thr_kill((A),(B)) -#define HAVE_PTHREAD_KILL - -#define pthread_sigmask(A,B,C) thr_sigsetmask((A),(B),(C)) - -extern int my_sigwait(const sigset_t *set,int *sig); - -#define pthread_detach_this_thread() pthread_dummy(0) - -#define pthread_attr_init(A) pthread_dummy(0) -#define pthread_attr_destroy(A) pthread_dummy(0) -#define pthread_attr_setscope(A,B) pthread_dummy(0) -#define pthread_attr_setdetachstate(A,B) pthread_dummy(0) -#define my_pthread_setprio(A,B) pthread_dummy (0) -#define my_pthread_getprio(A) pthread_dummy (0) -#define my_pthread_attr_setprio(A,B) pthread_dummy(0) - -#else /* Normal threads */ - -#ifdef HAVE_rts_threads -#define sigwait org_sigwait -#include <signal.h> -#undef sigwait -#endif -#include <pthread.h> -#ifndef _REENTRANT -#define _REENTRANT -#endif -#ifdef HAVE_THR_SETCONCURRENCY -#include <thread.h> /* Probably solaris */ -#endif -#ifdef HAVE_SCHED_H -#include <sched.h> -#endif -#ifdef HAVE_SYNCH_H -#include <synch.h> -#endif -#if defined(__EMX__) && (!defined(EMX_PTHREAD_REV) || (EMX_PTHREAD_REV < 2)) -#error Requires at least rev 2 of EMX pthreads library. -#endif - -#ifdef __NETWARE__ -void my_pthread_exit(void *status); -#define pthread_exit(A) my_pthread_exit(A) -#endif - -extern int my_pthread_getprio(pthread_t thread_id); - -#define pthread_key(T,V) pthread_key_t V -#define my_pthread_getspecific_ptr(T,V) my_pthread_getspecific(T,(V)) -#define my_pthread_setspecific_ptr(T,V) pthread_setspecific(T,(void*) (V)) -#define pthread_detach_this_thread() -#define pthread_handler_t EXTERNC void * -typedef void *(* pthread_handler)(void *); - -/* Test first for RTS or FSU threads */ - -#if defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) -#define HAVE_rts_threads -extern int my_pthread_create_detached; -#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C)) -#define PTHREAD_CREATE_DETACHED &my_pthread_create_detached -#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_GLOBAL -#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_LOCAL -#define USE_ALARM_THREAD -#elif defined(HAVE_mit_thread) -#define USE_ALARM_THREAD -#undef HAVE_LOCALTIME_R -#define HAVE_LOCALTIME_R -#undef HAVE_GMTIME_R -#define HAVE_GMTIME_R -#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 s; sigset_t set; \ - sigemptyset(&set); \ - s.sa_handler = (B); \ - s.sa_mask = set; \ - s.sa_flags = 0; \ - sigaction((A), &s, (struct sigaction *) NULL); \ - } 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 - - /* 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)); -#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 -*/ -extern pthread_t shutdown_th, main_th, signal_th; - - /* 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 */ |