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/cvs/libeio/xthread.h
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Comparing libeio/xthread.h (file contents):
Revision 1.8 by root, Wed Mar 31 00:46:18 2010 UTC vs.
Revision 1.18 by root, Mon Sep 21 08:01:00 2015 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
32#define sigfillset(a) 37#define sigfillset(a)
33#define pthread_sigmask(a,b,c) 38#define pthread_sigmask(a,b,c)
34#define sigaddset(a,b) 39#define sigaddset(a,b)
35#define sigemptyset(s) 40#define sigemptyset(s)
36#define sigfillset(s)
37 41
38typedef pthread_mutex_t xmutex_t; 42typedef pthread_mutex_t xmutex_t;
39#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)
40#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) 45#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
41#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 46#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
42 47
43typedef pthread_cond_t xcond_t; 48typedef pthread_cond_t xcond_t;
44#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)
45#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) 51#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
46#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) 52#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
47#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))
48 54
49typedef pthread_t xthread_t; 55typedef pthread_t xthread_t;
50#define X_THREAD_PROC(name) void *name (void *thr_arg) 56#define X_THREAD_PROC(name) static void *name (void *thr_arg)
51#define X_THREAD_ATFORK(a,b,c) 57#define X_THREAD_ATFORK(a,b,c)
52 58
53static int 59static int
54thread_create (xthread_t *tid, void *(*proc)(void *), void *arg) 60xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
55{ 61{
56 int retval; 62 int retval;
57 pthread_attr_t attr; 63 pthread_attr_t attr;
58 64
59 pthread_attr_init (&attr); 65 pthread_attr_init (&attr);
… …
94#include <limits.h> 100#include <limits.h>
95#include <pthread.h> 101#include <pthread.h>
96 102
97typedef pthread_mutex_t xmutex_t; 103typedef pthread_mutex_t xmutex_t;
98#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 104#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
99# 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)
100#else 113#else
101# 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)
102#endif 116#endif
103#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) 117#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
104#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 118#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
105 119
106typedef pthread_cond_t xcond_t; 120typedef pthread_cond_t xcond_t;
107#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)
108#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) 123#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
109#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) 124#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
110#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))
111 126
112typedef pthread_t xthread_t; 127typedef pthread_t xthread_t;
113#define X_THREAD_PROC(name) static void *name (void *thr_arg) 128#define X_THREAD_PROC(name) static void *name (void *thr_arg)
114#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)
115 130
… …
117#ifndef PTHREAD_STACK_MIN 132#ifndef PTHREAD_STACK_MIN
118# define PTHREAD_STACK_MIN 0 133# define PTHREAD_STACK_MIN 0
119#endif 134#endif
120 135
121#ifndef X_STACKSIZE 136#ifndef X_STACKSIZE
122# define X_STACKSIZE sizeof (long) * 4096 137# define X_STACKSIZE sizeof (void *) * 4096
123#endif 138#endif
124 139
125static int 140static int
126thread_create (xthread_t *tid, void *(*proc)(void *), void *arg) 141xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
127{ 142{
128 int retval; 143 int retval;
129 sigset_t fullsigset, oldsigset; 144 sigset_t fullsigset, oldsigset;
130 pthread_attr_t attr; 145 pthread_attr_t attr;
131 146
… …
151#define respipe_write(a,b,c) write ((a), (b), (c)) 166#define respipe_write(a,b,c) write ((a), (b), (c))
152#define respipe_close(a) close ((a)) 167#define respipe_close(a) close ((a))
153 168
154#endif 169#endif
155 170
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)
156#endif 182#endif
157 183
184#endif
185

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