my_pthread.h
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上传日期:2019-04-29
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文件大小:21k
- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; 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
- #if defined(__WIN__)
- typedef CRITICAL_SECTION pthread_mutex_t;
- 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;
- HANDLE semaphore;
- } pthread_cond_t;
- struct timespec { /* For pthread_cond_timedwait() */
- time_t tv_sec;
- long tv_nsec;
- };
- typedef int pthread_mutexattr_t;
- #define win_pthread_self my_thread_var->pthread_self
- #define pthread_handler_decl(A,B) void * __cdecl A(void *B)
- typedef void * (__cdecl *pthread_handler)(void *);
- 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);
- void pthread_exit(void *a); /* was #define pthread_exit(A) ExitThread(A)*/
- #define ETIMEDOUT 145 /* Win32 doesn't have this */
- #define getpid() GetCurrentThreadId()
- #define pthread_self() win_pthread_self
- #define HAVE_LOCALTIME_R
- #define _REENTRANT
- #define HAVE_PTHREAD_ATTR_SETSTACKSIZE
- #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_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_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))
- #define pthread_mutex_init(A,B) InitializeCriticalSection(A)
- #define pthread_mutex_lock(A) (EnterCriticalSection(A),0)
- #define pthread_mutex_unlock(A) LeaveCriticalSection(A)
- #define pthread_mutex_destroy(A) DeleteCriticalSection(A)
- #define my_pthread_setprio(A,B) SetThreadPriority(GetCurrentThread(), (B))
- /* Dummy defines for easier code */
- #define pthread_kill(A,B) pthread_dummy(0)
- #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_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
- #undef _REENTRANT /* Fix if _REENTRANT is in pthread.h */
- #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
- 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_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 sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
- #define signal(A,B) pthread_signal((A),(void (*)(int)) (B))
- #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
- #if defined(HAVE_UNIXWARE7_POSIX)
- #undef HAVE_NONPOSIX_SIGWAIT
- #define HAVE_NONPOSIX_SIGWAIT /* sigwait takes only 1 argument */
- #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
- #if !defined(HAVE_SIGSET) && !defined(HAVE_mit_thread) && !defined(sigset)
- #define 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)
- #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
- #ifndef 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
- #ifndef HAVE_LOCALTIME_R
- struct tm *localtime_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
- #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_DARWIN_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)
- #define pthread_signal(A,B) pthread_dummy(0)
- #undef pthread_detach_this_thread
- #define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
- #undef sigset
- #define sigset(A,B) pthread_signal((A),(void (*)(int)) (B))
- #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); }
- #else /* HAVE_PTHREAD_ATTR_CREATE && !HAVE_SIGWAIT */
- #define HAVE_PTHREAD_KILL
- #endif
- #if defined(HAVE_PTHREAD_ATTR_CREATE) || defined(_AIX) || defined(HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE)
- #if !defined(HPUX)
- struct hostent;
- #endif /* HPUX */
- struct hostent *my_gethostbyname_r(const char *name,
- struct hostent *result, char *buffer,
- int buflen, int *h_errnop);
- #if defined(HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE)
- #define GETHOSTBYNAME_BUFF_SIZE 2048
- #else
- #define GETHOSTBYNAME_BUFF_SIZE sizeof(struct hostent_data)
- #endif /* defined(HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE) */
- #else
- #ifdef HAVE_GETHOSTBYNAME_R_RETURN_INT
- #define GETHOSTBYNAME_BUFF_SIZE sizeof(struct hostent_data)
- struct hostent *my_gethostbyname_r(const char *name,
- struct hostent *result, char *buffer,
- int buflen, int *h_errnop);
- #else
- #define GETHOSTBYNAME_BUFF_SIZE 2048
- #define my_gethostbyname_r(A,B,C,D,E) gethostbyname_r((A),(B),(C),(D),(E))
- #endif /* HAVE_GETHOSTBYNAME_R_RETURN_INT */
- #endif /* defined(HAVE_PTHREAD_ATTR_CREATE) || defined(_AIX) || defined(HAVE_GETHOSTBYNAME_R_GLIBC2_STYLE) */
- #endif /* defined(__WIN__) */
- /* safe_mutex adds checking to mutex for easier debugging */
- typedef struct st_safe_mutex_t
- {
- pthread_mutex_t global,mutex;
- char *file;
- uint line,count;
- pthread_t thread;
- } safe_mutex_t;
- int safe_mutex_init(safe_mutex_t *mp, const pthread_mutexattr_t *attr);
- 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);
- /* 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
- #define pthread_mutex_init(A,B) safe_mutex_init((A),(B))
- #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_t safe_mutex_t
- #endif /* SAFE_MUTEX */
- /* READ-WRITE thread locking */
- #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_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_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_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 * );
- #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
- 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 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
- #if defined(__ia64__)
- #define DEFAULT_THREAD_STACK (128*1024)
- #else
- #define DEFAULT_THREAD_STACK (64*1024)
- #endif
- struct st_my_thread_var
- {
- int thr_errno;
- pthread_cond_t suspend, *current_cond;
- pthread_mutex_t mutex, *current_mutex;
- pthread_t pthread_self;
- long id;
- int cmp_length;
- volatile int abort;
- #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
- /* 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);
- #define statistic_increment(V,L) thread_safe_increment((V),(L))
- #define statistic_add(V,C,L) thread_safe_add((V),(C),(L))
- #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));
- #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 /* HAVE_ATOMIC_ADD */
- #endif /* thread_safe_increment */
- #endif /* _my_ptread_h */