libeio/xthread.h

#ifndef XTHREAD_H_
#define XTHREAD_H_

/* whether word reads are potentially non-atomic.
 * this is conservative, likely most arches this runs
 * on have atomic word read/writes.
 */
#ifndef WORDACCESS_UNSAFE
# if __i386 || __x86_64
#  define WORDACCESS_UNSAFE 0
# else
#  define WORDACCESS_UNSAFE 1
# endif
#endif

/////////////////////////////////////////////////////////////////////////////

#ifdef _WIN32

#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
#define _WIN32_WINNT 0x400
#include <stdio.h>//D
#include <fcntl.h>
#include <io.h>
#include <time.h>
#include <winsock2.h>
#include <process.h>
#include <windows.h>
#include <pthread.h>
#define sigset_t int
#define sigfillset(a)
#define pthread_sigmask(a,b,c)
#define sigaddset(a,b)
#define sigemptyset(s)

typedef pthread_mutex_t xmutex_t;
#define X_MUTEX_INIT           PTHREAD_MUTEX_INITIALIZER
#define X_MUTEX_CREATE(mutex)  pthread_mutex_init (&(mutex), 0)
#define X_LOCK(mutex)          pthread_mutex_lock (&(mutex))
#define X_UNLOCK(mutex)        pthread_mutex_unlock (&(mutex))

typedef pthread_cond_t xcond_t;
#define X_COND_INIT                     PTHREAD_COND_INITIALIZER
#define X_COND_CREATE(cond)             pthread_cond_init (&(cond), 0)
#define X_COND_SIGNAL(cond)             pthread_cond_signal (&(cond))
#define X_COND_WAIT(cond,mutex)         pthread_cond_wait (&(cond), &(mutex))
#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))

typedef pthread_t xthread_t;
#define X_THREAD_PROC(name) static void *name (void *thr_arg)
#define X_THREAD_ATFORK(a,b,c)

static int
xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
{
  int retval;
  pthread_attr_t attr;

  pthread_attr_init (&attr);
  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);

  retval = pthread_create (tid, &attr, proc, arg) == 0;

  pthread_attr_destroy (&attr);

  return retval;
}

#define respipe_read(a,b,c)  PerlSock_recv ((a), (b), (c), 0)
#define respipe_write(a,b,c) send ((a), (b), (c), 0)
#define respipe_close(a)     PerlSock_closesocket ((a))

#else
/////////////////////////////////////////////////////////////////////////////

#if __linux && !defined(_GNU_SOURCE)
# define _GNU_SOURCE
#endif

/* just in case */
#define _REENTRANT 1

#if __solaris
# define _POSIX_PTHREAD_SEMANTICS 1
/* try to bribe solaris headers into providing a current pthread API
 * despite environment being configured for an older version.
 */
# define __EXTENSIONS__ 1
#endif

#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <limits.h>
#include <pthread.h>

typedef pthread_mutex_t xmutex_t;
#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
# define X_MUTEX_INIT           PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
# define X_MUTEX_CREATE(mutex)                                          \
  do {                                                                  \
    pthread_mutexattr_t attr;                                           \
    pthread_mutexattr_init (&attr);                                     \
    pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP);       \
    pthread_mutex_init (&(mutex), &attr);                               \
  } while (0)
#else
# define X_MUTEX_INIT           PTHREAD_MUTEX_INITIALIZER
# define X_MUTEX_CREATE(mutex)  pthread_mutex_init (&(mutex), 0)
#endif
#define X_LOCK(mutex)           pthread_mutex_lock   (&(mutex))
#define X_UNLOCK(mutex)         pthread_mutex_unlock (&(mutex))

typedef pthread_cond_t xcond_t;
#define X_COND_INIT                     PTHREAD_COND_INITIALIZER
#define X_COND_CREATE(cond)             pthread_cond_init (&(cond), 0)
#define X_COND_SIGNAL(cond)             pthread_cond_signal (&(cond))
#define X_COND_WAIT(cond,mutex)         pthread_cond_wait (&(cond), &(mutex))
#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))

typedef pthread_t xthread_t;
#define X_THREAD_PROC(name) static void *name (void *thr_arg)
#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)

// the broken bsd's once more
#ifndef PTHREAD_STACK_MIN
# define PTHREAD_STACK_MIN 0
#endif

#ifndef X_STACKSIZE
# define X_STACKSIZE sizeof (void *) * 4096
#endif

static int
xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
{
  int retval;
  sigset_t fullsigset, oldsigset;
  pthread_attr_t attr;

  pthread_attr_init (&attr);
  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
  pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
#ifdef PTHREAD_SCOPE_PROCESS
  pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
#endif

  sigfillset (&fullsigset);

  pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
  retval = pthread_create (tid, &attr, proc, arg) == 0;
  pthread_sigmask (SIG_SETMASK, &oldsigset, 0);

  pthread_attr_destroy (&attr);

  return retval;
}

#define respipe_read(a,b,c)  read  ((a), (b), (c))
#define respipe_write(a,b,c) write ((a), (b), (c))
#define respipe_close(a)     close ((a))

#endif

#endif

Revision:	1.16
Committed:	Thu Oct 11 03:20:52 2012 UTC (11 years, 7 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-4_17, rel-4_18, rel-4_19
Changes since 1.15:	+2 -2 lines
Log Message:	4.17
#	User	Rev	Content
1	root	1.1	#ifndef XTHREAD_H_
2			#define XTHREAD_H_
3
4			/* whether word reads are potentially non-atomic.
5	sf-exg	1.11	* this is conservative, likely most arches this runs
6	root	1.1	* on have atomic word read/writes.
7			*/
8			#ifndef WORDACCESS_UNSAFE
9			# if __i386 \|\| __x86_64
10			# define WORDACCESS_UNSAFE 0
11			# else
12			# define WORDACCESS_UNSAFE 1
13			# endif
14			#endif
15
16			/////////////////////////////////////////////////////////////////////////////
17
18			#ifdef _WIN32
19
20			#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
21			#define _WIN32_WINNT 0x400
22			#include <stdio.h>//D
23			#include <fcntl.h>
24			#include <io.h>
25			#include <time.h>
26			#include <winsock2.h>
27			#include <process.h>
28			#include <windows.h>
29			#include <pthread.h>
30			#define sigset_t int
31	root	1.10	#define sigfillset(a)
32	root	1.1	#define pthread_sigmask(a,b,c)
33			#define sigaddset(a,b)
34			#define sigemptyset(s)
35
36	root	1.8	typedef pthread_mutex_t xmutex_t;
37	root	1.1	#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
38	root	1.10	#define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
39	root	1.1	#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
40			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
41
42	root	1.8	typedef pthread_cond_t xcond_t;
43	root	1.1	#define X_COND_INIT PTHREAD_COND_INITIALIZER
44	root	1.10	#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
45	root	1.1	#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
46			#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))
48
49	root	1.8	typedef pthread_t xthread_t;
50	root	1.15	#define X_THREAD_PROC(name) static void name (void thr_arg)
51	root	1.1	#define X_THREAD_ATFORK(a,b,c)
52
53			static int
54	root	1.16	xthread_create (xthread_t tid, void (proc)(void ), void *arg)
55	root	1.1	{
56	root	1.3	int retval;
57	root	1.1	pthread_attr_t attr;
58
59			pthread_attr_init (&attr);
60			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
61
62	root	1.3	retval = pthread_create (tid, &attr, proc, arg) == 0;
63	root	1.2
64			pthread_attr_destroy (&attr);
65
66	root	1.3	return retval;
67	root	1.1	}
68
69			#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
70			#define respipe_write(a,b,c) send ((a), (b), (c), 0)
71			#define respipe_close(a) PerlSock_closesocket ((a))
72
73			#else
74			/////////////////////////////////////////////////////////////////////////////
75
76			#if __linux && !defined(_GNU_SOURCE)
77			# define _GNU_SOURCE
78			#endif
79
80			/* just in case */
81			#define _REENTRANT 1
82
83			#if __solaris
84			# define _POSIX_PTHREAD_SEMANTICS 1
85			/* try to bribe solaris headers into providing a current pthread API
86			* despite environment being configured for an older version.
87			*/
88			# define __EXTENSIONS__ 1
89			#endif
90
91			#include <unistd.h>
92			#include <fcntl.h>
93			#include <signal.h>
94			#include <limits.h>
95			#include <pthread.h>
96
97	root	1.8	typedef pthread_mutex_t xmutex_t;
98	root	1.1	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
99	root	1.10	# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
100			# define X_MUTEX_CREATE(mutex) \
101			do { \
102			pthread_mutexattr_t attr; \
103			pthread_mutexattr_init (&attr); \
104			pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP); \
105			pthread_mutex_init (&(mutex), &attr); \
106			} while (0)
107	root	1.1	#else
108	root	1.10	# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
109			# define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
110	root	1.1	#endif
111	root	1.10	#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
112			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
113	root	1.1
114	root	1.8	typedef pthread_cond_t xcond_t;
115	root	1.10	#define X_COND_INIT PTHREAD_COND_INITIALIZER
116			#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
117			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
118			#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
119			#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
120	root	1.1
121	root	1.8	typedef pthread_t xthread_t;
122	root	1.1	#define X_THREAD_PROC(name) static void name (void thr_arg)
123			#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
124
125	root	1.5	// the broken bsd's once more
126			#ifndef PTHREAD_STACK_MIN
127			# define PTHREAD_STACK_MIN 0
128			#endif
129
130	root	1.7	#ifndef X_STACKSIZE
131	root	1.12	# define X_STACKSIZE sizeof (void ) 4096
132	root	1.6	#endif
133
134	root	1.1	static int
135	root	1.16	xthread_create (xthread_t tid, void (proc)(void ), void *arg)
136	root	1.1	{
137			int retval;
138			sigset_t fullsigset, oldsigset;
139			pthread_attr_t attr;
140
141			pthread_attr_init (&attr);
142			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
143	root	1.7	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
144	root	1.1	#ifdef PTHREAD_SCOPE_PROCESS
145			pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
146			#endif
147
148			sigfillset (&fullsigset);
149
150			pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
151			retval = pthread_create (tid, &attr, proc, arg) == 0;
152			pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
153
154	root	1.2	pthread_attr_destroy (&attr);
155
156	root	1.1	return retval;
157			}
158
159			#define respipe_read(a,b,c) read ((a), (b), (c))
160			#define respipe_write(a,b,c) write ((a), (b), (c))
161			#define respipe_close(a) close ((a))
162
163			#endif
164
165			#endif
166