Delete bundled copy of NSS and replace with README.

nspr/pr/src/threads/prsem.c

Index: nspr/pr/src/threads/prsem.c
diff --git a/nspr/pr/src/threads/prsem.c b/nspr/pr/src/threads/prsem.c
deleted file mode 100644
index f5f261fe939fa59f76793ed1118df04629bd5871..0000000000000000000000000000000000000000
--- a/nspr/pr/src/threads/prsem.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "primpl.h"
-#include "obsolete/prsem.h"
-
-/************************************************************************/
-
-/*
-** Create a new semaphore.
-*/
-PR_IMPLEMENT(PRSemaphore*) PR_NewSem(PRUintn value)
-{
-    PRSemaphore *sem;
-    PRCondVar *cvar;
-    PRLock *lock;
-
-    sem = PR_NEWZAP(PRSemaphore);
-    if (sem) {
-#ifdef HAVE_CVAR_BUILT_ON_SEM
-        _PR_MD_NEW_SEM(&sem->md, value);
-#else
-        lock = PR_NewLock();
-        if (!lock) {
-            PR_DELETE(sem);
-            return NULL;
-    	}
-
-        cvar = PR_NewCondVar(lock);
-        if (!cvar) {
-            PR_DestroyLock(lock);
-            PR_DELETE(sem);
-            return NULL;
-    	}
-    	sem->cvar = cvar;
-    	sem->count = value;
-#endif
-    }
-    return sem;
-}
-
-/*
-** Destroy a semaphore. There must be no thread waiting on the semaphore.
-** The caller is responsible for guaranteeing that the semaphore is
-** no longer in use.
-*/
-PR_IMPLEMENT(void) PR_DestroySem(PRSemaphore *sem)
-{
-#ifdef HAVE_CVAR_BUILT_ON_SEM
-    _PR_MD_DESTROY_SEM(&sem->md);
-#else
-    PR_ASSERT(sem->waiters == 0);
-
-    PR_DestroyLock(sem->cvar->lock);
-    PR_DestroyCondVar(sem->cvar);
-#endif
-    PR_DELETE(sem);
-}
-
-/*
-** Wait on a Semaphore.
-** 
-** This routine allows a calling thread to wait or proceed depending upon the 
-** state of the semahore sem. The thread can proceed only if the counter value 
-** of the semaphore sem is currently greater than 0. If the value of semaphore 
-** sem is positive, it is decremented by one and the routine returns immediately 
-** allowing the calling thread to continue. If the value of semaphore sem is 0, 
-** the calling thread blocks awaiting the semaphore to be released by another 
-** thread.
-** 
-** This routine can return PR_PENDING_INTERRUPT if the waiting thread 
-** has been interrupted.
-*/
-PR_IMPLEMENT(PRStatus) PR_WaitSem(PRSemaphore *sem)
-{
-	PRStatus status = PR_SUCCESS;
-
-#ifdef HAVE_CVAR_BUILT_ON_SEM
-	return _PR_MD_WAIT_SEM(&sem->md);
-#else
-	PR_Lock(sem->cvar->lock);
-	while (sem->count == 0) {
-		sem->waiters++;
-		status = PR_WaitCondVar(sem->cvar, PR_INTERVAL_NO_TIMEOUT);
-		sem->waiters--;
-		if (status != PR_SUCCESS)
-			break;
-	}
-	if (status == PR_SUCCESS)
-		sem->count--;
-	PR_Unlock(sem->cvar->lock);
-#endif
-	
-	return (status);
-}
-
-/*
-** This routine increments the counter value of the semaphore. If other threads 
-** are blocked for the semaphore, then the scheduler will determine which ONE 
-** thread will be unblocked.
-*/
-PR_IMPLEMENT(void) PR_PostSem(PRSemaphore *sem)
-{
-#ifdef HAVE_CVAR_BUILT_ON_SEM
-	_PR_MD_POST_SEM(&sem->md);
-#else
-	PR_Lock(sem->cvar->lock);
-	if (sem->waiters)
-		PR_NotifyCondVar(sem->cvar);
-	sem->count++;
-	PR_Unlock(sem->cvar->lock);
-#endif
-}
-
-#if DEBUG
-/*
-** Returns the value of the semaphore referenced by sem without affecting
-** the state of the semaphore.  The value represents the semaphore vaule
-** at the time of the call, but may not be the actual value when the
-** caller inspects it. (FOR DEBUGGING ONLY)
-*/
-PR_IMPLEMENT(PRUintn) PR_GetValueSem(PRSemaphore *sem)
-{
-	PRUintn rv;
-
-#ifdef HAVE_CVAR_BUILT_ON_SEM
-	rv = _PR_MD_GET_VALUE_SEM(&sem->md);
-#else
-	PR_Lock(sem->cvar->lock);
-	rv = sem->count;
-	PR_Unlock(sem->cvar->lock);
-#endif
-	
-	return rv;
-}
-#endif