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 mutex_t;
#define X_MUTEX_INIT           PTHREAD_MUTEX_INITIALIZER
#define X_MUTEX_CHECK(mutex)   
#define X_LOCK(mutex)          pthread_mutex_lock (&(mutex))
#define X_UNLOCK(mutex)        pthread_mutex_unlock (&(mutex))

typedef pthread_cond_t cond_t;
#define X_COND_INIT                     PTHREAD_COND_INITIALIZER
#define X_COND_CHECK(cond)              
#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 thread_t;
#define X_THREAD_PROC(name) void *name (void *thr_arg)
#define X_THREAD_ATFORK(a,b,c)

static int
thread_create (thread_t *tid, void *(*proc)(void *), void *arg)
{
  pthread_attr_t attr;

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

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

#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 mutex_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 cond_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 thread_t;
#define X_THREAD_PROC(name) static void *name (void *thr_arg)
#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)

static int
thread_create (thread_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 < sizeof (long) * 4096
                                    ? sizeof (long) * 4096 : 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);

  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:	1.1
Committed:	Sat May 10 17:16:39 2008 UTC (16 years ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-3_01, rel-3_02
Log Message:	initial check-in
#	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 sigfillset(a)
33			#define pthread_sigmask(a,b,c)
34			#define sigaddset(a,b)
35			#define sigemptyset(s)
36			#define sigfillset(s)
37
38			typedef pthread_mutex_t mutex_t;
39			#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
40			#define X_MUTEX_CHECK(mutex)
41			#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
42			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
43
44			typedef pthread_cond_t cond_t;
45			#define X_COND_INIT PTHREAD_COND_INITIALIZER
46			#define X_COND_CHECK(cond)
47			#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			typedef pthread_t thread_t;
52			#define X_THREAD_PROC(name) void name (void thr_arg)
53			#define X_THREAD_ATFORK(a,b,c)
54
55			static int
56			thread_create (thread_t tid, void (proc)(void ), void *arg)
57			{
58			pthread_attr_t attr;
59
60			pthread_attr_init (&attr);
61			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
62
63			return pthread_create (tid, &attr, proc, arg) == 0;
64			}
65
66			#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
67			#define respipe_write(a,b,c) send ((a), (b), (c), 0)
68			#define respipe_close(a) PerlSock_closesocket ((a))
69
70			#else
71			/////////////////////////////////////////////////////////////////////////////
72
73			#if __linux && !defined(_GNU_SOURCE)
74			# define _GNU_SOURCE
75			#endif
76
77			/* just in case */
78			#define _REENTRANT 1
79
80			#if __solaris
81			# define _POSIX_PTHREAD_SEMANTICS 1
82			/* try to bribe solaris headers into providing a current pthread API
83			* despite environment being configured for an older version.
84			*/
85			# define __EXTENSIONS__ 1
86			#endif
87
88			#include <unistd.h>
89			#include <fcntl.h>
90			#include <signal.h>
91			#include <limits.h>
92			#include <pthread.h>
93
94			typedef pthread_mutex_t mutex_t;
95			#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
96			# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
97			#else
98			# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
99			#endif
100			#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
101			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
102
103			typedef pthread_cond_t cond_t;
104			#define X_COND_INIT PTHREAD_COND_INITIALIZER
105			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
106			#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
107			#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
108
109			typedef pthread_t thread_t;
110			#define X_THREAD_PROC(name) static void name (void thr_arg)
111			#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
112
113			static int
114			thread_create (thread_t tid, void (proc)(void ), void *arg)
115			{
116			int retval;
117			sigset_t fullsigset, oldsigset;
118			pthread_attr_t attr;
119
120			pthread_attr_init (&attr);
121			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
122			pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
123			? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
124			#ifdef PTHREAD_SCOPE_PROCESS
125			pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
126			#endif
127
128			sigfillset (&fullsigset);
129
130			pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
131			retval = pthread_create (tid, &attr, proc, arg) == 0;
132			pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
133
134			return retval;
135			}
136
137			#define respipe_read(a,b,c) read ((a), (b), (c))
138			#define respipe_write(a,b,c) write ((a), (b), (c))
139			#define respipe_close(a) close ((a))
140
141			#endif
142
143			#endif
144