cpython/Python/thread.c

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/* Thread package.
This is intended to be usable independently from Python.
The implementation for system foobar is in a file thread_foobar.h
which is included by this file dependent on config settings.
Stuff shared by all thread_*.h files is collected here. */
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#include "config.h"
/* config.h may or may not define DL_IMPORT */
#ifndef DL_IMPORT /* declarations for DLL import/export */
#define DL_IMPORT(RTYPE) RTYPE
#endif
#ifndef DONT_HAVE_STDIO_H
#include <stdio.h>
#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#else
#ifdef Py_DEBUG
extern char *getenv(const char *);
#endif
#endif
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#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
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#ifdef __DGUX
#define _USING_POSIX4A_DRAFT6
#endif
#ifdef __sgi
#ifndef HAVE_PTHREAD_H /* XXX Need to check in configure.in */
#undef _POSIX_THREADS
#endif
#endif
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#include "pythread.h"
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#ifdef __ksr__
#define _POSIX_THREADS
#endif
#ifndef _POSIX_THREADS
#ifdef __sgi
#define SGI_THREADS
#endif
#ifdef HAVE_THREAD_H
#define SOLARIS_THREADS
#endif
#if defined(sun) && !defined(SOLARIS_THREADS)
#define SUN_LWP
#endif
#if defined(__MWERKS__) && !defined(__BEOS__)
#define _POSIX_THREADS
#endif
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#endif /* _POSIX_THREADS */
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#ifdef Py_DEBUG
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static int thread_debug = 0;
#define dprintf(args) ((thread_debug & 1) && printf args)
#define d2printf(args) ((thread_debug & 8) && printf args)
#else
#define dprintf(args)
#define d2printf(args)
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#endif
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static int initialized;
static void PyThread__init_thread(void); /* Forward */
void PyThread_init_thread(void)
{
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#ifdef Py_DEBUG
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char *p = getenv("THREADDEBUG");
if (p) {
if (*p)
thread_debug = atoi(p);
else
thread_debug = 1;
}
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#endif /* Py_DEBUG */
if (initialized)
return;
initialized = 1;
dprintf(("PyThread_init_thread called\n"));
PyThread__init_thread();
}
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#ifdef SGI_THREADS
#include "thread_sgi.h"
#endif
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#ifdef SOLARIS_THREADS
#include "thread_solaris.h"
#endif
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#ifdef SUN_LWP
#include "thread_lwp.h"
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#endif
#ifdef HAVE_PTH
#include "thread_pth.h"
#undef _POSIX_THREADS
#endif
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#ifdef _POSIX_THREADS
#include "thread_pthread.h"
#endif
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#ifdef C_THREADS
#include "thread_cthread.h"
#endif
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#ifdef NT_THREADS
#include "thread_nt.h"
#endif
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#ifdef OS2_THREADS
#include "thread_os2.h"
#endif
#ifdef BEOS_THREADS
#include "thread_beos.h"
#endif
#ifdef WINCE_THREADS
#include "thread_wince.h"
#endif
/*
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#ifdef FOOBAR_THREADS
#include "thread_foobar.h"
#endif
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*/