43
43
#define pthread_key(T,V) pthread_key_t V
44
#define pthread_handler_t void *
44
#define my_pthread_getspecific_ptr(T,V) my_pthread_getspecific(T,(V))
45
#define my_pthread_setspecific_ptr(T,V) pthread_setspecific(T,(void*) (V))
46
#define pthread_detach_this_thread()
47
#define pthread_handler_t EXTERNC void *
45
48
typedef void *(* pthread_handler)(void *);
50
/* Test first for RTS or FSU threads */
52
#if defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM)
53
#define HAVE_rts_threads
54
extern int my_pthread_create_detached;
55
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
56
#define PTHREAD_CREATE_DETACHED &my_pthread_create_detached
57
#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_GLOBAL
58
#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_LOCAL
59
#define USE_ALARM_THREAD
60
#endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
62
#ifndef HAVE_NONPOSIX_SIGWAIT
63
#define my_sigwait(A,B) sigwait((A),(B))
65
int my_sigwait(const sigset_t *set,int *sig);
68
#ifdef HAVE_NONPOSIX_PTHREAD_MUTEX_INIT
69
#define pthread_mutex_init(a,b) my_pthread_mutex_init((a),(b))
70
extern int my_pthread_mutex_init(pthread_mutex_t *mp,
71
const pthread_mutexattr_t *attr);
72
#define pthread_cond_init(a,b) my_pthread_cond_init((a),(b))
73
extern int my_pthread_cond_init(pthread_cond_t *mp,
74
const pthread_condattr_t *attr);
75
#endif /* HAVE_NONPOSIX_PTHREAD_MUTEX_INIT */
77
#if defined(HAVE_SIGTHREADMASK) && !defined(HAVE_PTHREAD_SIGMASK)
78
#define pthread_sigmask(A,B,C) sigthreadmask((A),(B),(C))
81
#if !defined(HAVE_SIGWAIT) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT)
82
int sigwait(sigset_t *setp, int *sigp); /* Use our implemention */
87
We define my_sigset() and use that instead of the system sigset() so that
88
we can favor an implementation based on sigaction(). On some systems, such
89
as Mac OS X, sigset() results in flags such as SA_RESTART being set, and
90
we want to make sure that no such flags are set.
92
#if defined(HAVE_SIGACTION) && !defined(my_sigset)
93
#define my_sigset(A,B) do { struct sigaction l_s; sigset_t l_set; int l_rc; \
95
sigemptyset(&l_set); \
96
l_s.sa_handler = (B); \
97
l_s.sa_mask = l_set; \
99
l_rc= sigaction((A), &l_s, (struct sigaction *) NULL);\
102
#elif defined(HAVE_SIGSET) && !defined(my_sigset)
103
#define my_sigset(A,B) sigset((A),(B))
104
#elif !defined(my_sigset)
105
#define my_sigset(A,B) signal((A),(B))
108
#ifndef my_pthread_setprio
109
#if defined(HAVE_PTHREAD_SETPRIO_NP) /* FSU threads */
110
#define my_pthread_setprio(A,B) pthread_setprio_np((A),(B))
111
#elif defined(HAVE_PTHREAD_SETPRIO)
112
#define my_pthread_setprio(A,B) pthread_setprio((A),(B))
114
extern void my_pthread_setprio(pthread_t thread_id,int prior);
118
#ifndef my_pthread_attr_setprio
119
#ifdef HAVE_PTHREAD_ATTR_SETPRIO
120
#define my_pthread_attr_setprio(A,B) pthread_attr_setprio((A),(B))
122
extern void my_pthread_attr_setprio(pthread_attr_t *attr, int priority);
126
#if !defined(HAVE_PTHREAD_ATTR_SETSCOPE)
127
#define pthread_attr_setscope(A,B)
130
#if defined(HAVE_BROKEN_PTHREAD_COND_TIMEDWAIT)
131
extern int my_pthread_cond_timedwait(pthread_cond_t *cond,
132
pthread_mutex_t *mutex,
133
struct timespec *abstime);
134
#define pthread_cond_timedwait(A,B,C) my_pthread_cond_timedwait((A),(B),(C))
138
#if !defined(HAVE_PTHREAD_KEY_DELETE) && !defined(pthread_key_delete)
139
#define pthread_key_delete(A) pthread_dummy(0)
142
#ifdef HAVE_CTHREADS_WRAPPER /* For MacOSX */
143
#define pthread_cond_destroy(A) pthread_dummy(0)
144
#define pthread_mutex_destroy(A) pthread_dummy(0)
145
#define pthread_attr_delete(A) pthread_dummy(0)
146
#define pthread_condattr_delete(A) pthread_dummy(0)
147
#define pthread_attr_setstacksize(A,B) pthread_dummy(0)
148
#define pthread_equal(A,B) ((A) == (B))
149
#define pthread_cond_timedwait(a,b,c) pthread_cond_wait((a),(b))
150
#define pthread_attr_init(A) pthread_attr_create(A)
151
#define pthread_attr_destroy(A) pthread_attr_delete(A)
152
#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
153
#define pthread_create(A,B,C,D) pthread_create((A),*(B),(C),(D))
154
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
155
#define pthread_kill(A,B) pthread_dummy((A) ? 0 : ESRCH)
156
#undef pthread_detach_this_thread
157
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(&tmp); }
160
#ifdef HAVE_DARWIN5_THREADS
161
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
162
#define pthread_kill(A,B) pthread_dummy((A) ? 0 : ESRCH)
163
#define pthread_condattr_init(A) pthread_dummy(0)
164
#define pthread_condattr_destroy(A) pthread_dummy(0)
165
#undef pthread_detach_this_thread
166
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(tmp); }
169
#if (defined(HAVE_PTHREAD_ATTR_CREATE) && !defined(HAVE_SIGWAIT))
170
/* This is set on AIX_3_2 and Siemens unix (and DEC OSF/1 3.2 too) */
171
#define pthread_key_create(A,B) \
172
pthread_keycreate(A,(B) ?\
173
(pthread_destructor_t) (B) :\
174
(pthread_destructor_t) pthread_dummy)
175
#define pthread_attr_init(A) pthread_attr_create(A)
176
#define pthread_attr_destroy(A) pthread_attr_delete(A)
177
#define pthread_attr_setdetachstate(A,B) pthread_dummy(0)
178
#define pthread_create(A,B,C,D) pthread_create((A),*(B),(C),(D))
179
#ifndef pthread_sigmask
180
#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
182
#define pthread_kill(A,B) pthread_dummy((A) ? 0 : ESRCH)
183
#undef pthread_detach_this_thread
184
#define pthread_detach_this_thread() { pthread_t tmp=pthread_self() ; pthread_detach(&tmp); }
186
#define HAVE_PTHREAD_KILL
189
#if defined(HAVE_POSIX1003_4a_MUTEX) && !defined(DONT_REMAP_PTHREAD_FUNCTIONS)
190
#undef pthread_mutex_trylock
191
#define pthread_mutex_trylock(a) my_pthread_mutex_trylock((a))
192
int my_pthread_mutex_trylock(pthread_mutex_t *mutex);
47
195
#if !defined(HAVE_PTHREAD_YIELD_ONE_ARG) && !defined(HAVE_PTHREAD_YIELD_ZERO_ARG)
48
196
/* no pthread_yield() available */
49
197
#ifdef HAVE_SCHED_YIELD
75
240
(ABSTIME).tv_nsec= (long) (now % 10000000UL * 100 + ((NSEC) % 100)); \
77
242
#endif /* !set_timespec_nsec */
243
#endif /* HAVE_TIMESPEC_TS_SEC */
245
/* safe_mutex adds checking to mutex for easier debugging */
247
typedef struct st_safe_mutex_t
249
pthread_mutex_t global,mutex;
255
int safe_mutex_init(safe_mutex_t *mp, const pthread_mutexattr_t *attr,
256
const char *file, uint32_t line);
257
int safe_mutex_lock(safe_mutex_t *mp, bool try_lock, const char *file, uint32_t line);
258
int safe_mutex_unlock(safe_mutex_t *mp,const char *file, uint32_t line);
259
int safe_mutex_destroy(safe_mutex_t *mp,const char *file, uint32_t line);
260
int safe_cond_wait(pthread_cond_t *cond, safe_mutex_t *mp,const char *file,
262
int safe_cond_timedwait(pthread_cond_t *cond, safe_mutex_t *mp,
263
struct timespec *abstime, const char *file, uint32_t line);
264
void safe_mutex_global_init(void);
265
void safe_mutex_end(FILE *file);
79
267
/* Wrappers if safe mutex is actually used */
80
268
#define safe_mutex_assert_owner(mp)
81
269
#define safe_mutex_assert_not_owner(mp)
271
#if defined(MY_PTHREAD_FASTMUTEX)
272
typedef struct st_my_pthread_fastmutex_t
274
pthread_mutex_t mutex;
276
} my_pthread_fastmutex_t;
277
void fastmutex_global_init(void);
279
int my_pthread_fastmutex_init(my_pthread_fastmutex_t *mp,
280
const pthread_mutexattr_t *attr);
281
int my_pthread_fastmutex_lock(my_pthread_fastmutex_t *mp);
283
#undef pthread_mutex_init
284
#undef pthread_mutex_lock
285
#undef pthread_mutex_unlock
286
#undef pthread_mutex_destroy
287
#undef pthread_mutex_wait
288
#undef pthread_mutex_timedwait
289
#undef pthread_mutex_t
290
#undef pthread_cond_wait
291
#undef pthread_cond_timedwait
292
#undef pthread_mutex_trylock
293
#define pthread_mutex_init(A,B) my_pthread_fastmutex_init((A),(B))
294
#define pthread_mutex_lock(A) my_pthread_fastmutex_lock(A)
295
#define pthread_mutex_unlock(A) pthread_mutex_unlock(&(A)->mutex)
296
#define pthread_mutex_destroy(A) pthread_mutex_destroy(&(A)->mutex)
297
#define pthread_cond_wait(A,B) pthread_cond_wait((A),&(B)->mutex)
298
#define pthread_cond_timedwait(A,B,C) pthread_cond_timedwait((A),&(B)->mutex,(C))
299
#define pthread_mutex_trylock(A) pthread_mutex_trylock(&(A)->mutex)
300
#define pthread_mutex_t my_pthread_fastmutex_t
301
#endif /* defined(MY_PTHREAD_FASTMUTEX) */
83
303
/* READ-WRITE thread locking */
305
#ifdef HAVE_BROKEN_RWLOCK /* For OpenUnix */
306
#undef HAVE_PTHREAD_RWLOCK_RDLOCK
307
#undef HAVE_RWLOCK_INIT
311
#if defined(USE_MUTEX_INSTEAD_OF_RW_LOCKS)
312
/* use these defs for simple mutex locking */
313
#define rw_lock_t pthread_mutex_t
314
#define my_rwlock_init(A,B) pthread_mutex_init((A),(B))
315
#define rw_rdlock(A) pthread_mutex_lock((A))
316
#define rw_wrlock(A) pthread_mutex_lock((A))
317
#define rw_tryrdlock(A) pthread_mutex_trylock((A))
318
#define rw_trywrlock(A) pthread_mutex_trylock((A))
319
#define rw_unlock(A) pthread_mutex_unlock((A))
320
#define rwlock_destroy(A) pthread_mutex_destroy((A))
321
#elif defined(HAVE_PTHREAD_RWLOCK_RDLOCK)
322
#define rw_lock_t pthread_rwlock_t
323
#define my_rwlock_init(A,B) pthread_rwlock_init((A),(B))
324
#define rw_rdlock(A) pthread_rwlock_rdlock(A)
325
#define rw_wrlock(A) pthread_rwlock_wrlock(A)
326
#define rw_tryrdlock(A) pthread_rwlock_tryrdlock((A))
327
#define rw_trywrlock(A) pthread_rwlock_trywrlock((A))
328
#define rw_unlock(A) pthread_rwlock_unlock(A)
329
#define rwlock_destroy(A) pthread_rwlock_destroy(A)
330
#elif defined(HAVE_RWLOCK_INIT)
331
#ifdef HAVE_RWLOCK_T /* For example Solaris 2.6-> */
332
#define rw_lock_t rwlock_t
334
#define my_rwlock_init(A,B) rwlock_init((A),USYNC_THREAD,0)
336
/* Use our own version of read/write locks */
337
typedef struct _my_rw_lock_t {
338
pthread_mutex_t lock; /* lock for structure */
339
pthread_cond_t readers; /* waiting readers */
340
pthread_cond_t writers; /* waiting writers */
341
int state; /* -1:writer,0:free,>0:readers */
342
int waiters; /* number of waiting writers */
345
#define rw_lock_t my_rw_lock_t
346
#define rw_rdlock(A) my_rw_rdlock((A))
347
#define rw_wrlock(A) my_rw_wrlock((A))
348
#define rw_tryrdlock(A) my_rw_tryrdlock((A))
349
#define rw_trywrlock(A) my_rw_trywrlock((A))
350
#define rw_unlock(A) my_rw_unlock((A))
351
#define rwlock_destroy(A) my_rwlock_destroy((A))
353
extern int my_rwlock_init(my_rw_lock_t *, void *);
354
extern int my_rwlock_destroy(my_rw_lock_t *);
355
extern int my_rw_rdlock(my_rw_lock_t *);
356
extern int my_rw_wrlock(my_rw_lock_t *);
357
extern int my_rw_unlock(my_rw_lock_t *);
358
extern int my_rw_tryrdlock(my_rw_lock_t *);
359
extern int my_rw_trywrlock(my_rw_lock_t *);
360
#endif /* USE_MUTEX_INSTEAD_OF_RW_LOCKS */
362
#ifndef HAVE_THR_SETCONCURRENCY
363
#define thr_setconcurrency(A) pthread_dummy(0)
85
365
#if !defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) && ! defined(pthread_attr_setstacksize)
86
366
#define pthread_attr_setstacksize(A,B) pthread_dummy(0)
89
369
/* Define mutex types, see my_thr_init.c */
90
#ifdef THREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
370
#define MY_MUTEX_INIT_SLOW NULL
371
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
91
372
extern pthread_mutexattr_t my_fast_mutexattr;
92
373
#define MY_MUTEX_INIT_FAST &my_fast_mutexattr
94
375
#define MY_MUTEX_INIT_FAST NULL
377
#ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
378
extern pthread_mutexattr_t my_errorcheck_mutexattr;
379
#define MY_MUTEX_INIT_ERRCHK &my_errorcheck_mutexattr
381
#define MY_MUTEX_INIT_ERRCHK NULL
98
385
/* Define it to something */
389
typedef ulong my_thread_id;
102
391
extern bool my_thread_global_init(void);
103
392
extern void my_thread_global_end(void);
104
393
extern bool my_thread_init(void);
105
394
extern void my_thread_end(void);
106
395
extern const char *my_thread_name(void);
396
extern my_thread_id my_thread_dbug_id(void);
108
398
/* All thread specific variables are in the following struct */
111
A default thread stack size of zero means that we are going to use
112
the OS defined thread stack size (this varies from OS to OS).
114
#define DEFAULT_THREAD_STACK 0
116
} /* namespace internal */
117
} /* namespace drizzled */
119
#endif /* DRIZZLED_INTERNAL_MY_PTHREAD_H */
400
#define THREAD_NAME_SIZE 10
402
Drizzle can survive with 32K, but some glibc libraries require > 128K stack
403
to resolve hostnames. Also recursive stored procedures needs stack.
405
#define DEFAULT_THREAD_STACK (256*INT32_C(1024))
407
struct st_my_thread_var
409
pthread_cond_t suspend;
410
pthread_mutex_t mutex;
411
pthread_mutex_t * volatile current_mutex;
412
pthread_cond_t * volatile current_cond;
413
pthread_t pthread_self;
418
struct st_my_thread_var *next,**prev;
422
extern struct st_my_thread_var *_my_thread_var(void) __attribute__ ((const));
423
extern uint32_t my_thread_end_wait_time;
424
#define my_thread_var (_my_thread_var())
426
Keep track of shutdown,signal, and main threads so that my_end() will not
427
report errors with them
430
/* Which kind of thread library is in use */
432
#define THD_LIB_OTHER 1
433
#define THD_LIB_NPTL 2
436
extern uint32_t thd_lib_detected;
439
thread_safe_xxx functions are for critical statistic or counters.
440
The implementation is guaranteed to be thread safe, on all platforms.
441
Note that the calling code should *not* assume the counter is protected
442
by the mutex given, as the implementation of these helpers may change
443
to use my_atomic operations instead.
446
#ifndef thread_safe_increment
447
#define thread_safe_increment(V,L) \
448
(pthread_mutex_lock((L)), (V)++, pthread_mutex_unlock((L)))
449
#define thread_safe_decrement(V,L) \
450
(pthread_mutex_lock((L)), (V)--, pthread_mutex_unlock((L)))
453
#ifndef thread_safe_add
454
#define thread_safe_add(V,C,L) \
455
(pthread_mutex_lock((L)), (V)+=(C), pthread_mutex_unlock((L)))
456
#define thread_safe_sub(V,C,L) \
457
(pthread_mutex_lock((L)), (V)-=(C), pthread_mutex_unlock((L)))
461
statistics_xxx functions are for non critical statistic,
462
maintained in global variables.
463
- race conditions can occur, making the result slightly inaccurate.
464
- the lock given is not honored.
466
#define statistic_decrement(V,L) (V)--
467
#define statistic_increment(V,L) (V)++
468
#define statistic_add(V,C,L) (V)+=(C)
469
#define statistic_sub(V,C,L) (V)-=(C)
472
No locking needed, the counter is owned by the thread
474
#define status_var_increment(V) (V)++
475
#define status_var_decrement(V) (V)--
476
#define status_var_add(V,C) (V)+=(C)
477
#define status_var_sub(V,C) (V)-=(C)
482
#endif /* _my_ptread_h */