my_pthread.h
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:24k
- /* 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
- extern "C" {
- #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_decl(A,B) void * _Optlink A(void *B)
- typedef void * (_Optlink *pthread_handler)(void *);
- #else
- #define pthread_handler_decl(A,B) void * __cdecl A(void *B)
- 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)
- #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_decl(A,B) void *A(void *B)
- #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_decl(A,B) void *A(void *B)
- 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))
- #else
- #define safe_mutex_assert_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 defined(__ia64__)
- /*
- MySQL can survive with 32K, but some glibc libraries require > 128K stack
- To resolve hostnames
- */
- #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_add(1,(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_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_add(V,C,L) thread_safe_add((V),(C),(L))
- #else
- #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 */