Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/pr/include/md/_nspr_pthread.h

Index: third_party/nspr/mozilla/nsprpub/pr/include/md/_nspr_pthread.h
diff --git a/third_party/nspr/mozilla/nsprpub/pr/include/md/_nspr_pthread.h b/third_party/nspr/mozilla/nsprpub/pr/include/md/_nspr_pthread.h
new file mode 100644
index 0000000000000000000000000000000000000000..b7a0481ee524da113b734d223924b393a306fccf
--- /dev/null
+++ b/third_party/nspr/mozilla/nsprpub/pr/include/md/_nspr_pthread.h
@@ -0,0 +1,283 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nspr_pthread_defs_h___
+#define nspr_pthread_defs_h___
+
+#include <pthread.h>
+#include "prthread.h"
+
+#if defined(PTHREADS_USER)
+/*
+** Thread Local Storage 
+*/
+extern pthread_key_t current_thread_key;
+extern pthread_key_t current_cpu_key;
+extern pthread_key_t last_thread_key;
+extern pthread_key_t intsoff_key;
+
+#define _MD_CURRENT_THREAD() 			\
+			((struct PRThread *) pthread_getspecific(current_thread_key))
+#define _MD_CURRENT_CPU() 				\
+			((struct _PRCPU *) pthread_getspecific(current_cpu_key))
+#define _MD_LAST_THREAD()				\
+			((struct PRThread *) pthread_getspecific(last_thread_key))
+	
+#define _MD_SET_CURRENT_THREAD(newval) 			\
+	pthread_setspecific(current_thread_key, (void *)newval)
+
+#define _MD_SET_CURRENT_CPU(newval) 			\
+	pthread_setspecific(current_cpu_key, (void *)newval)
+
+#define _MD_SET_LAST_THREAD(newval)	 			\
+	pthread_setspecific(last_thread_key, (void *)newval)
+
+#define _MD_SET_INTSOFF(_val)
+#define _MD_GET_INTSOFF()	1
+	
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)			\
+    PR_BEGIN_MACRO				      							\
+        *status = PR_TRUE;              						\
+		if (SAVE_CONTEXT(_thread)) {							\
+	    	(*_main)();											\
+		}														\
+		_MD_SET_THR_SP(_thread, _sp);							\
+		_thread->no_sched = 0; 									\
+    PR_END_MACRO
+
+#define _MD_SWITCH_CONTEXT(_thread)  								\
+    PR_BEGIN_MACRO 													\
+	PR_ASSERT(_thread->no_sched);									\
+	if (!SAVE_CONTEXT(_thread)) {									\
+		(_thread)->md.errcode = errno;  							\
+		_MD_SET_LAST_THREAD(_thread);								\
+		_PR_Schedule();		     									\
+    } else {														\
+		 (_MD_LAST_THREAD())->no_sched = 0;							\
+	}																\
+    PR_END_MACRO
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)								\
+    PR_BEGIN_MACRO 													\
+    errno = (_thread)->md.errcode; 									\
+    _MD_SET_CURRENT_THREAD(_thread); 								\
+	_thread->no_sched = 1;											\
+    GOTO_CONTEXT(_thread); 											\
+    PR_END_MACRO
+
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    jmp_buf 		jb;
+    int				id;
+    int				errcode;
+	pthread_t		pthread;
+	pthread_mutex_t	pthread_mutex;
+	pthread_cond_t	pthread_cond;
+	int				wait;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+	pthread_mutex_t mutex;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+	pthread_mutex_t mutex;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+				fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+	struct pollfd *ioq_pollfds;
+	int ioq_pollfds_size;
+#endif	/* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
+
+struct _MDCPU {
+    jmp_buf 			jb;
+	pthread_t 			pthread;
+	struct _MDCPU_Unix 	md_unix;
+};
+
+/*
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+*/
+
+extern pthread_mutex_t _pr_heapLock;
+
+#define _PR_LOCK(lock) pthread_mutex_lock(lock)
+
+#define _PR_UNLOCK(lock) pthread_mutex_unlock(lock)
+
+
+#define _PR_LOCK_HEAP()	{									\
+				if (_pr_primordialCPU) {					\
+					_PR_LOCK(_pr_heapLock);					\
+				}
+
+#define _PR_UNLOCK_HEAP() 	if (_pr_primordialCPU)	{		\
+					_PR_UNLOCK(_pr_heapLock);				\
+				}											\
+			  }
+
+NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md);
+NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp);
+
+#define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex)
+#define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex)
+
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+#define _MD_CHECK_FOR_EXIT()
+
+NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread);
+#define _MD_INIT_THREAD _MD_InitThread
+#define _MD_INIT_ATTACHED_THREAD _MD_InitThread
+
+NSPR_API(void) _MD_ExitThread(struct PRThread *thread);
+#define _MD_EXIT_THREAD _MD_ExitThread
+
+NSPR_API(void) _MD_SuspendThread(struct PRThread *thread);
+#define _MD_SUSPEND_THREAD _MD_SuspendThread
+
+NSPR_API(void) _MD_ResumeThread(struct PRThread *thread);
+#define _MD_RESUME_THREAD _MD_ResumeThread
+
+NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread);
+#define _MD_SUSPEND_CPU _MD_SuspendCPU
+
+NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread);
+#define _MD_RESUME_CPU _MD_ResumeCPU
+
+#define _MD_BEGIN_SUSPEND_ALL()
+#define _MD_END_SUSPEND_ALL()
+#define _MD_BEGIN_RESUME_ALL()
+#define _MD_END_RESUME_ALL()
+
+NSPR_API(void) _MD_EarlyInit(void);
+#define _MD_EARLY_INIT _MD_EarlyInit
+
+#define _MD_FINAL_INIT _PR_UnixInit
+
+NSPR_API(void) _MD_InitLocks(void);
+#define _MD_INIT_LOCKS _MD_InitLocks
+
+NSPR_API(void) _MD_CleanThread(struct PRThread *thread);
+#define _MD_CLEAN_THREAD _MD_CleanThread
+
+NSPR_API(PRStatus) _MD_CreateThread(
+                        struct PRThread *thread,
+                        void (*start) (void *),
+                        PRThreadPriority priority,
+                        PRThreadScope scope,
+                        PRThreadState state,
+                        PRUint32 stackSize);
+#define _MD_CREATE_THREAD _MD_CreateThread
+
+extern void _MD_CleanupBeforeExit(void);
+#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
+
+NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu);
+#define    _MD_INIT_RUNNING_CPU _MD_InitRunningCPU
+
+/* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
+ * awaken a thread which is waiting on a lock or cvar.
+ */
+NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout);
+#define _MD_WAIT _MD_wait
+
+NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *);
+#define _MD_WAKEUP_WAITER _MD_WakeupWaiter
+
+NSPR_API(void) _MD_SetPriority(struct _MDThread *thread,
+	PRThreadPriority newPri);
+#define _MD_SET_PRIORITY _MD_SetPriority
+
+#endif /* PTHREADS_USER */
+
+#endif /* nspr_pthread_defs_h___ */