BDB/xthread.h

/* wether 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
/////////////////////////////////////////////////////////////////////////////

/* solaris */
#define _POSIX_PTHREAD_SEMANTICS 1

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

/* just in case */
#define _REENTRANT 1

#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


Revision:	1.5
Committed:	Sat Apr 12 23:33:16 2008 UTC (16 years, 1 month ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.4:	+3 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.2	/* wether word reads are potentially non-atomic.
2			* this is conservatice, likely most arches this runs
3			* on have atomic word read/writes.
4			*/
5			#ifndef WORDACCESS_UNSAFE
6			# if __i386 \|\| __x86_64
7			# define WORDACCESS_UNSAFE 0
8			# else
9			# define WORDACCESS_UNSAFE 1
10			# endif
11			#endif
12
13			/////////////////////////////////////////////////////////////////////////////
14
15			#ifdef _WIN32
16			typedef int ssize_t;
17
18			#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
19			#define _WIN32_WINNT 0x400
20			#include <stdio.h>//D
21			#include <fcntl.h>
22			#include <io.h>
23	root	1.4	#include <time.h>
24	root	1.2	#include <winsock2.h>
25			#include <process.h>
26			#include <windows.h>
27	root	1.4	#include <pthread.h>
28	root	1.2	#define sigset_t int
29			#define sigfillset(a)
30			#define pthread_sigmask(a,b,c)
31			#define sigaddset(a,b)
32			#define sigemptyset(s)
33			#define sigfillset(s)
34
35	root	1.4	typedef pthread_mutex_t mutex_t;
36			#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
37			#define X_MUTEX_CHECK(mutex)
38			#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
39			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
40	root	1.2
41	root	1.4	typedef pthread_cond_t cond_t;
42			#define X_COND_INIT PTHREAD_COND_INITIALIZER
43			#define X_COND_CHECK(cond)
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			typedef pthread_t thread_t;
49			#define X_THREAD_PROC(name) void name (void thr_arg)
50			#define X_THREAD_ATFORK(a,b,c)
51	root	1.2
52			static int
53	root	1.4	thread_create (thread_t tid, void (proc)(void ), void *arg)
54	root	1.2	{
55	root	1.4	pthread_attr_t attr;
56	root	1.2
57	root	1.4	pthread_attr_init (&attr);
58			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
59	root	1.2
60	root	1.4	return pthread_create (tid, &attr, proc, arg) == 0;
61	root	1.2	}
62
63	root	1.3	#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
64			#define respipe_write(a,b,c) send ((a), (b), (c), 0)
65			#define respipe_close(a) PerlSock_closesocket ((a))
66	root	1.2
67			#else
68			/////////////////////////////////////////////////////////////////////////////
69
70	root	1.1	/* solaris */
71			#define _POSIX_PTHREAD_SEMANTICS 1
72
73			#if __linux && !defined(_GNU_SOURCE)
74			# define _GNU_SOURCE
75			#endif
76
77			/* just in case */
78			#define _REENTRANT 1
79
80	root	1.2	#include <unistd.h>
81			#include <fcntl.h>
82	root	1.1	#include <signal.h>
83	root	1.5	#include <limits.h>
84	root	1.1	#include <pthread.h>
85
86			typedef pthread_mutex_t mutex_t;
87			#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
88	root	1.2	# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
89	root	1.1	#else
90	root	1.2	# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
91	root	1.1	#endif
92	root	1.2	#define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
93			#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
94	root	1.1
95			typedef pthread_cond_t cond_t;
96	root	1.2	#define X_COND_INIT PTHREAD_COND_INITIALIZER
97			#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
98			#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
99			#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
100	root	1.1
101			typedef pthread_t thread_t;
102	root	1.2	#define X_THREAD_PROC(name) static void name (void thr_arg)
103			#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
104	root	1.1
105	root	1.2	static int
106			thread_create (thread_t tid, void (proc)(void ), void *arg)
107	root	1.1	{
108			int retval;
109			sigset_t fullsigset, oldsigset;
110			pthread_attr_t attr;
111
112			pthread_attr_init (&attr);
113			pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
114	root	1.5	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
115			? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
116	root	1.1	#ifdef PTHREAD_SCOPE_PROCESS
117			pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
118			#endif
119
120			sigfillset (&fullsigset);
121
122			pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
123			retval = pthread_create (tid, &attr, proc, arg) == 0;
124			pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
125
126			return retval;
127			}
128
129	root	1.3	#define respipe_read(a,b,c) read ((a), (b), (c))
130			#define respipe_write(a,b,c) write ((a), (b), (c))
131			#define respipe_close(a) close ((a))
132	root	1.2
133			#endif
134
135
136	root	1.1