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 sigfillset(a)
#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_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) 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
# 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 (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:	1.10
Committed:	Tue Feb 15 03:15:16 2011 UTC (13 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_93, rel-3_92, rel-3_91, rel-3_9, rel-3_8
Changes since 1.9:	+20 -8 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	root	1.10	#define sigfillset(a)
33	root	1.1	#define pthread_sigmask(a,b,c)
34			#define sigaddset(a,b)
35			#define sigemptyset(s)
36			#define sigfillset(s)
37
38	root	1.8	typedef pthread_mutex_t xmutex_t;
39	root	1.1	#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
40	root	1.10	#define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
41	root	1.1	#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
42			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
43
44	root	1.8	typedef pthread_cond_t xcond_t;
45	root	1.1	#define X_COND_INIT PTHREAD_COND_INITIALIZER
46	root	1.10	#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
47	root	1.1	#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
48			#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
49			#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
50
51	root	1.8	typedef pthread_t xthread_t;
52	root	1.1	#define X_THREAD_PROC(name) void name (void thr_arg)
53			#define X_THREAD_ATFORK(a,b,c)
54
55			static int
56	root	1.8	thread_create (xthread_t tid, void (proc)(void ), void *arg)
57	root	1.1	{
58	root	1.3	int retval;
59	root	1.1	pthread_attr_t attr;
60
61			pthread_attr_init (&attr);
62			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
63
64	root	1.3	retval = pthread_create (tid, &attr, proc, arg) == 0;
65	root	1.2
66			pthread_attr_destroy (&attr);
67
68	root	1.3	return retval;
69	root	1.1	}
70
71			#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
72			#define respipe_write(a,b,c) send ((a), (b), (c), 0)
73			#define respipe_close(a) PerlSock_closesocket ((a))
74
75			#else
76			/////////////////////////////////////////////////////////////////////////////
77
78			#if __linux && !defined(_GNU_SOURCE)
79			# define _GNU_SOURCE
80			#endif
81
82			/* just in case */
83			#define _REENTRANT 1
84
85			#if __solaris
86			# define _POSIX_PTHREAD_SEMANTICS 1
87			/* try to bribe solaris headers into providing a current pthread API
88			* despite environment being configured for an older version.
89			*/
90			# define __EXTENSIONS__ 1
91			#endif
92
93			#include <unistd.h>
94			#include <fcntl.h>
95			#include <signal.h>
96			#include <limits.h>
97			#include <pthread.h>
98
99	root	1.8	typedef pthread_mutex_t xmutex_t;
100	root	1.1	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
101	root	1.10	# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
102			# define X_MUTEX_CREATE(mutex) \
103			do { \
104			pthread_mutexattr_t attr; \
105			pthread_mutexattr_init (&attr); \
106			pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP); \
107			pthread_mutex_init (&(mutex), &attr); \
108			} while (0)
109	root	1.1	#else
110	root	1.10	# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
111			# define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
112	root	1.1	#endif
113	root	1.10	#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
114			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
115	root	1.1
116	root	1.8	typedef pthread_cond_t xcond_t;
117	root	1.10	#define X_COND_INIT PTHREAD_COND_INITIALIZER
118			#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
119			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
120			#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
121			#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
122	root	1.1
123	root	1.8	typedef pthread_t xthread_t;
124	root	1.1	#define X_THREAD_PROC(name) static void name (void thr_arg)
125			#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
126
127	root	1.5	// the broken bsd's once more
128			#ifndef PTHREAD_STACK_MIN
129			# define PTHREAD_STACK_MIN 0
130			#endif
131
132	root	1.7	#ifndef X_STACKSIZE
133			# define X_STACKSIZE sizeof (long) * 4096
134	root	1.6	#endif
135
136	root	1.1	static int
137	root	1.8	thread_create (xthread_t tid, void (proc)(void ), void *arg)
138	root	1.1	{
139			int retval;
140			sigset_t fullsigset, oldsigset;
141			pthread_attr_t attr;
142
143			pthread_attr_init (&attr);
144			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
145	root	1.7	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
146	root	1.1	#ifdef PTHREAD_SCOPE_PROCESS
147			pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
148			#endif
149
150			sigfillset (&fullsigset);
151
152			pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
153			retval = pthread_create (tid, &attr, proc, arg) == 0;
154			pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
155
156	root	1.2	pthread_attr_destroy (&attr);
157
158	root	1.1	return retval;
159			}
160
161			#define respipe_read(a,b,c) read ((a), (b), (c))
162			#define respipe_write(a,b,c) write ((a), (b), (c))
163			#define respipe_close(a) close ((a))
164
165			#endif
166
167			#endif
168