libeio/xthread.h

#ifndef XTHREAD_H_
#define XTHREAD_H_

/* whether word reads are potentially non-atomic.
 * this is conservatice, 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
typedef int ssize_t;

#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 pthread_sigmask(a,b,c)
#define sigaddset(a,b)
#define sigemptyset(s)
#define sigfillset(s)

typedef pthread_mutex_t xmutex_t;
#define X_MUTEX_INIT           PTHREAD_MUTEX_INITIALIZER
#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_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) void *name (void *thr_arg)
#define X_THREAD_ATFORK(a,b,c)

static int
thread_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
#else
# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
#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_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 (long) * 4096
#endif

static int
thread_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:	1.9
Committed:	Sat Oct 30 14:36:53 2010 UTC (13 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_71, rel-3_7
Changes since 1.8:	+0 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#ifndef XTHREAD_H_
2			#define XTHREAD_H_
3
4			/* whether word reads are potentially non-atomic.
5			* this is conservatice, likely most arches this runs
6			* 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			typedef int ssize_t;
20
21			#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
22			#define _WIN32_WINNT 0x400
23			#include <stdio.h>//D
24			#include <fcntl.h>
25			#include <io.h>
26			#include <time.h>
27			#include <winsock2.h>
28			#include <process.h>
29			#include <windows.h>
30			#include <pthread.h>
31			#define sigset_t int
32			#define pthread_sigmask(a,b,c)
33			#define sigaddset(a,b)
34			#define sigemptyset(s)
35			#define sigfillset(s)
36
37	root	1.8	typedef pthread_mutex_t xmutex_t;
38	root	1.1	#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
39			#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			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
45			#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))
47
48	root	1.8	typedef pthread_t xthread_t;
49	root	1.1	#define X_THREAD_PROC(name) void name (void thr_arg)
50			#define X_THREAD_ATFORK(a,b,c)
51
52			static int
53	root	1.8	thread_create (xthread_t tid, void (proc)(void ), void *arg)
54	root	1.1	{
55	root	1.3	int retval;
56	root	1.1	pthread_attr_t attr;
57
58			pthread_attr_init (&attr);
59			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
60
61	root	1.3	retval = pthread_create (tid, &attr, proc, arg) == 0;
62	root	1.2
63			pthread_attr_destroy (&attr);
64
65	root	1.3	return retval;
66	root	1.1	}
67
68			#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
69			#define respipe_write(a,b,c) send ((a), (b), (c), 0)
70			#define respipe_close(a) PerlSock_closesocket ((a))
71
72			#else
73			/////////////////////////////////////////////////////////////////////////////
74
75			#if __linux && !defined(_GNU_SOURCE)
76			# define _GNU_SOURCE
77			#endif
78
79			/* just in case */
80			#define _REENTRANT 1
81
82			#if __solaris
83			# define _POSIX_PTHREAD_SEMANTICS 1
84			/* try to bribe solaris headers into providing a current pthread API
85			* despite environment being configured for an older version.
86			*/
87			# define __EXTENSIONS__ 1
88			#endif
89
90			#include <unistd.h>
91			#include <fcntl.h>
92			#include <signal.h>
93			#include <limits.h>
94			#include <pthread.h>
95
96	root	1.8	typedef pthread_mutex_t xmutex_t;
97	root	1.1	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
98			# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
99			#else
100			# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
101			#endif
102			#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
103			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
104
105	root	1.8	typedef pthread_cond_t xcond_t;
106	root	1.1	#define X_COND_INIT PTHREAD_COND_INITIALIZER
107			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
108			#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))
110
111	root	1.8	typedef pthread_t xthread_t;
112	root	1.1	#define X_THREAD_PROC(name) static void name (void thr_arg)
113			#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
114
115	root	1.5	// the broken bsd's once more
116			#ifndef PTHREAD_STACK_MIN
117			# define PTHREAD_STACK_MIN 0
118			#endif
119
120	root	1.7	#ifndef X_STACKSIZE
121			# define X_STACKSIZE sizeof (long) * 4096
122	root	1.6	#endif
123
124	root	1.1	static int
125	root	1.8	thread_create (xthread_t tid, void (proc)(void ), void *arg)
126	root	1.1	{
127			int retval;
128			sigset_t fullsigset, oldsigset;
129			pthread_attr_t attr;
130
131			pthread_attr_init (&attr);
132			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
133	root	1.7	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
134	root	1.1	#ifdef PTHREAD_SCOPE_PROCESS
135			pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
136			#endif
137
138			sigfillset (&fullsigset);
139
140			pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
141			retval = pthread_create (tid, &attr, proc, arg) == 0;
142			pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
143
144	root	1.2	pthread_attr_destroy (&attr);
145
146	root	1.1	return retval;
147			}
148
149			#define respipe_read(a,b,c) read ((a), (b), (c))
150			#define respipe_write(a,b,c) write ((a), (b), (c))
151			#define respipe_close(a) close ((a))
152
153			#endif
154
155			#endif
156