Include <gnustep/base/preface.h> first! Fix indentation.

([NSLock +initialize]): Method removed.
([NSLock -init]): Assert return value from objc_mutex_allocate(),
don't just return nil.
([NSConditionLock -initWithCondition:]): Likewise.
([NSRecursiveLock -init]): Likewise.
([NSConditionLock +initialize]): Method removed.
([NSRecursiveLock +initialize]): Method removed.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1566 72102866-910b-0410-8b05-ffd578937521

Source/NSLock.m

@@ -1,12 +1,8 @@
-/* 
-   NSLock.m
-
-   Mutual exclusion locking classes
-
+/* Mutual exclusion locking classes
    Copyright (C) 1996 Free Software Foundation, Inc.
 
    Author:  Scott Christley <scottc@net-community.com>
-   Date: 1996
+   Created: 1996
    
    This file is part of the GNUstep Objective-C Library.
 
@@ -20,42 +16,27 @@
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
-   If you are interested in a warranty or support for this source code,
-   contact Scott Christley <scottc@net-community.com> for more information.
-   
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */ 
 
+#include <gnustep/base/preface.h>
 #include <Foundation/NSLock.h>
 
-//
 // NSLock class
 // Simplest lock for protecting critical sections of code
-//
+
 @implementation NSLock
 
-// Class initialization
-+ (void)initialize
-{
-	if (self == [NSLock class])
-	{
-		// Initial version
-		[self setVersion:1];
-	}
-}
-
-// Default initializer
+// Designated initializer
 - init
 {
   [super init];
   
   // Allocate the mutex from the runtime
   mutex = objc_mutex_allocate();
-	if (!mutex)
-		return nil;
-	else
+  NSAssertParameter (mutex);
   return self;
 }
 
@@ -64,7 +45,6 @@
   // Ask the runtime to deallocate the mutex
   // If there are outstanding locks then it will block
   objc_mutex_deallocate (mutex);
-
   [super dealloc];
 }
 
@@ -95,28 +75,18 @@
 
 @end
 
-//
+
 // NSConditionLock
-// Allows locking and unlocking to be based upon a condition
-//
-@implementation NSConditionLock
+// Allows locking and unlocking to be based upon an integer condition
 
-// Class initialization
-+ (void)initialize
-{
-	if (self == [NSConditionLock class])
-	{
-		// Initial version
-		[self setVersion:1];
-	}
-}
+@implementation NSConditionLock
 
 - init
 {
   return [self initWithCondition: 0];
 }
 
-// Default initializer
+// Designated initializer
 // Initialize lock with condition
 - (id)initWithCondition:(int)value
 {
@@ -126,9 +96,7 @@
 
   // Allocate the mutex from the runtime
   mutex = objc_mutex_allocate ();
-	if (!mutex)
-		return nil;
-	else
+  NSParameterAssert (mutex);
   return self;
 }
 
@@ -137,7 +105,6 @@
   // Ask the runtime to deallocate the mutex
   // If there are outstanding locks then it will block
   objc_mutex_deallocate (mutex);
-
   [super dealloc];
 }
 
@@ -233,36 +200,23 @@
 
 @end
 
-//
+
 // NSRecursiveLock
 // Allows the lock to be recursively acquired by the same thread
 //
 // If the same thread locks the mutex (n) times then that same 
 // thread must also unlock it (n) times before another thread 
 // can acquire the lock.
-//
-@implementation NSRecursiveLock
 
-// Class initialization
-+ (void)initialize
-{
-	if (self == [NSRecursiveLock class])
-	{
-		// Initial version
-		[self setVersion:1];
-	}
-}
+@implementation NSRecursiveLock
 
 // Default initializer
 - init
 {
   [super init];
-
   // Allocate the mutex from the runtime
   mutex = objc_mutex_allocate();
-	if (!mutex)
-		return nil;
-	else
+  NSParameterAssert (mutex);
   return self;
 }
 
@@ -271,7 +225,6 @@
   // Ask the runtime to deallocate the mutex
   // If there are outstanding locks then it will block.
   objc_mutex_deallocate(mutex);
-
   [super dealloc];
 }