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Commit	Line	Data
	1	/*
	2	* Copyright (C) 2008 Apple Inc. All Rights Reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#import "config.h"
	27	#import "ProfilerServer.h"
	28
	29	#import "JSProfilerPrivate.h"
	30	#import "JSRetainPtr.h"
	31	#import <Foundation/Foundation.h>
	32
	33	#if PLATFORM(IPHONE_SIMULATOR)
	34	#import <Foundation/NSDistributedNotificationCenter.h>
	35	#endif
	36
	37	@interface ProfilerServer : NSObject {
	38	@private
	39	NSString *_serverName;
	40	unsigned _listenerCount;
	41	}
	42	+ (ProfilerServer *)sharedProfileServer;
	43	- (void)startProfiling;
	44	- (void)stopProfiling;
	45	@end
	46
	47	@implementation ProfilerServer
	48
	49	+ (ProfilerServer *)sharedProfileServer
	50	{
	51	static ProfilerServer *sharedServer;
	52	if (!sharedServer)
	53	sharedServer = [[ProfilerServer alloc] init];
	54	return sharedServer;
	55	}
	56
	57	- (id)init
	58	{
	59	if (!(self = [super init]))
	60	return nil;
	61
	62	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	63
	64	NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
	65	if ([defaults boolForKey:@"EnableJSProfiling"])
	66	[self startProfiling];
	67
	68	#if PLATFORM(IPHONE_SIMULATOR)
	69	// FIXME: <rdar://problem/6546135>
	70	// The catch-all notifications
	71	[[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(startProfiling) name:@"ProfilerServerStartNotification" object:nil];
	72	[[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(stopProfiling) name:@"ProfilerServerStopNotification" object:nil];
	73	#endif
	74
	75	// The specific notifications
	76	NSProcessInfo *processInfo = [NSProcessInfo processInfo];
	77	_serverName = [[NSString alloc] initWithFormat:@"ProfilerServer-%d", [processInfo processIdentifier]];
	78
	79	#if PLATFORM(IPHONE_SIMULATOR)
	80	// FIXME: <rdar://problem/6546135>
	81	[[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(startProfiling) name:[_serverName stringByAppendingString:@"-Start"] object:nil];
	82	[[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(stopProfiling) name:[_serverName stringByAppendingString:@"-Stop"] object:nil];
	83	#endif
	84
	85	[pool drain];
	86
	87	return self;
	88	}
	89
	90	- (void)startProfiling
	91	{
	92	if (++_listenerCount > 1)
	93	return;
	94	JSRetainPtr<JSStringRef> profileName(Adopt, JSStringCreateWithUTF8CString([_serverName UTF8String]));
	95	JSStartProfiling(0, profileName.get());
	96	}
	97
	98	- (void)stopProfiling
	99	{
	100	if (!_listenerCount \|\| --_listenerCount > 0)
	101	return;
	102	JSRetainPtr<JSStringRef> profileName(Adopt, JSStringCreateWithUTF8CString([_serverName UTF8String]));
	103	JSEndProfiling(0, profileName.get());
	104	}
	105
	106	@end
	107
	108	namespace JSC {
	109
	110	void startProfilerServerIfNeeded()
	111	{
	112	[ProfilerServer sharedProfileServer];
	113	}
	114
	115	} // namespace JSC