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/cvs/BDB/xthread.h
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Comparing BDB/xthread.h (file contents):
Revision 1.10 by root, Sat Oct 23 09:40:53 2010 UTC vs.
Revision 1.14 by root, Tue Feb 2 04:07:06 2016 UTC

1#ifndef XTHREAD_H_ 1#ifndef XTHREAD_H_
2#define XTHREAD_H_ 2#define XTHREAD_H_
3 3
4/* whether word reads are potentially non-atomic. 4/* whether word reads are potentially non-atomic.
5 * this is conservatice, likely most arches this runs 5 * this is conservative, likely most arches this runs
6 * on have atomic word read/writes. 6 * on have atomic word read/writes.
7 */ 7 */
8#ifndef WORDACCESS_UNSAFE 8#ifndef WORDACCESS_UNSAFE
9# if __i386 || __x86_64 9# if __i386 || __x86_64
10# define WORDACCESS_UNSAFE 0 10# define WORDACCESS_UNSAFE 0
… …
14#endif 14#endif
15 15
16///////////////////////////////////////////////////////////////////////////// 16/////////////////////////////////////////////////////////////////////////////
17 17
18#ifdef _WIN32 18#ifdef _WIN32
19typedef int ssize_t;
20 19
21#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls 20//#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls, fails with mingw
22#define _WIN32_WINNT 0x400 21#define _WIN32_WINNT 0x400 // maybe working alternative for mingw
23#include <stdio.h>//D 22#include <stdio.h>//D
24#include <fcntl.h> 23#include <fcntl.h>
25#include <io.h> 24#include <io.h>
26#include <time.h> 25#include <time.h>
27#include <winsock2.h> 26#include <winsock2.h>
28#include <process.h> 27#include <process.h>
29#include <windows.h> 28#include <windows.h>
29
30/* work around some bugs in ptw32 */
31#if defined(__MINGW32__) && defined(_TIMESPEC_DEFINED)
32#define HAVE_STRUCT_TIMESPEC 1
33#endif
34
30#include <pthread.h> 35#include <pthread.h>
31#define sigset_t int 36#define sigset_t int
37#define sigfillset(a)
32#define pthread_sigmask(a,b,c) 38#define pthread_sigmask(a,b,c)
33#define sigaddset(a,b) 39#define sigaddset(a,b)
34#define sigemptyset(s) 40#define sigemptyset(s)
35#define sigfillset(s)
36 41
37typedef pthread_mutex_t xmutex_t; 42typedef pthread_mutex_t xmutex_t;
38#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 43#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
44#define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
39#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) 45#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
40#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 46#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
41 47
42typedef pthread_cond_t xcond_t; 48typedef pthread_cond_t xcond_t;
43#define X_COND_INIT PTHREAD_COND_INITIALIZER 49#define X_COND_INIT PTHREAD_COND_INITIALIZER
50#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
44#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) 51#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
45#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) 52#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
46#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to)) 53#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
47 54
48typedef pthread_t xthread_t; 55typedef pthread_t xthread_t;
49#define X_THREAD_PROC(name) void *name (void *thr_arg) 56#define X_THREAD_PROC(name) static void *name (void *thr_arg)
50#define X_THREAD_ATFORK(a,b,c) 57#define X_THREAD_ATFORK(a,b,c)
51 58
52static int 59static int
53thread_create (xthread_t *tid, void *(*proc)(void *), void *arg) 60xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
54{ 61{
55 int retval; 62 int retval;
56 pthread_attr_t attr; 63 pthread_attr_t attr;
57 64
58 pthread_attr_init (&attr); 65 pthread_attr_init (&attr);
… …
93#include <limits.h> 100#include <limits.h>
94#include <pthread.h> 101#include <pthread.h>
95 102
96typedef pthread_mutex_t xmutex_t; 103typedef pthread_mutex_t xmutex_t;
97#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 104#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
98# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 105# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
106# define X_MUTEX_CREATE(mutex) \
107 do { \
108 pthread_mutexattr_t attr; \
109 pthread_mutexattr_init (&attr); \
110 pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP); \
111 pthread_mutex_init (&(mutex), &attr); \
112 } while (0)
99#else 113#else
100# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 114# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
115# define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
101#endif 116#endif
102#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) 117#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
103#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 118#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104 119
105typedef pthread_cond_t xcond_t; 120typedef pthread_cond_t xcond_t;
106#define X_COND_INIT PTHREAD_COND_INITIALIZER 121#define X_COND_INIT PTHREAD_COND_INITIALIZER
122#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
107#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) 123#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
108#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) 124#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
109#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to)) 125#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
110 126
111typedef pthread_t xthread_t; 127typedef pthread_t xthread_t;
112#define X_THREAD_PROC(name) static void *name (void *thr_arg) 128#define X_THREAD_PROC(name) static void *name (void *thr_arg)
113#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child) 129#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
114 130
… …
116#ifndef PTHREAD_STACK_MIN 132#ifndef PTHREAD_STACK_MIN
117# define PTHREAD_STACK_MIN 0 133# define PTHREAD_STACK_MIN 0
118#endif 134#endif
119 135
120#ifndef X_STACKSIZE 136#ifndef X_STACKSIZE
121# define X_STACKSIZE sizeof (long) * 4096 137# define X_STACKSIZE sizeof (void *) * 4096
122#endif 138#endif
123 139
124static int 140static int
125thread_create (xthread_t *tid, void *(*proc)(void *), void *arg) 141xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
126{ 142{
127 int retval; 143 int retval;
128 sigset_t fullsigset, oldsigset; 144 sigset_t fullsigset, oldsigset;
129 pthread_attr_t attr; 145 pthread_attr_t attr;
130 146
… …
150#define respipe_write(a,b,c) write ((a), (b), (c)) 166#define respipe_write(a,b,c) write ((a), (b), (c))
151#define respipe_close(a) close ((a)) 167#define respipe_close(a) close ((a))
152 168
153#endif 169#endif
154 170
171#if __linux && __GNUC__ >= 4 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 3 && 0 /* also check arch */
172/* __thread has little to no advantage over pthread_* in most configurations, so this is not used */
173# define X_TLS_DECLARE(varname) __thread void *varname
174# define X_TLS_INIT(varname)
175# define X_TLS_SET(varname,value) varname = (value)
176# define X_TLS_GET(varname) varname
177#else
178# define X_TLS_DECLARE(varname) pthread_key_t varname
179# define X_TLS_INIT(varname) do { if (pthread_key_create (&(varname), 0)) abort (); } while (0)
180# define X_TLS_SET(varname,value) pthread_setspecific (varname, (value))
181# define X_TLS_GET(varname) pthread_getspecific (varname)
155#endif 182#endif
156 183
184#endif
185

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