X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_transform/misc/speed-test.mm

diff --git a/Security/libsecurity_transform/misc/speed-test.mm b/Security/libsecurity_transform/misc/speed-test.mm
new file mode 100644
index 00000000..b33aea64
--- /dev/null
+++ b/Security/libsecurity_transform/misc/speed-test.mm
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+#import "speed-test.h"
+#include "SecTransform.h"
+#include "SecExternalSourceTransform.h"
+#include "SecNullTransform.h"
+#include <assert.h>
+
+@implementation speed_test
+
+@end
+
+UInt8 zeros[1024];
+
+typedef void (^push_block_t)(CFDataRef d);
+
+void timed_test(NSString *name, float seconds, SecTransformRef tr, push_block_t push) {
+	__block int num_out = 0;
+	__block int num_in = 0;
+	__block int timeout_out = -1;
+	__block int timeout_in = -1;
+	volatile __block bool done;
+	static CFDataRef z = CFDataCreateWithBytesNoCopy(NULL, zeros, sizeof(zeros), NULL);
+	
+	dispatch_after(dispatch_time(DISPATCH_TIME_NOW, static_cast<int64_t>(seconds * NSEC_PER_SEC)), dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
+		done = true;
+		timeout_out = num_out;
+		timeout_in = num_in;
+	});
+	
+	dispatch_group_t dg = dispatch_group_create();
+	dispatch_group_enter(dg);
+	
+	dispatch_queue_t q = dispatch_queue_create("counter", NULL);
+	
+	SecTransformExecuteAsync(tr, q, ^(CFTypeRef message, CFErrorRef error, Boolean isFinal) {
+		if (message) {
+			num_out++;
+		}
+		if (error) {
+			NSLog(@"Error %@ while running %@", error, name);
+		}
+		if (isFinal) {
+			dispatch_group_leave(dg);
+		}
+	});
+	
+	while (!done) {
+		push(z);
+		num_in++;
+	}
+	push(NULL);
+	dispatch_group_wait(dg, DISPATCH_TIME_FOREVER);
+	NSString *m = [NSString stringWithFormat:@"%@ %d in, %d out times in %f seconds, %d stragglers\n", name, timeout_in, timeout_out, seconds, num_out - timeout_out];
+	[m writeToFile:@"/dev/stdout" atomically:NO encoding:NSUTF8StringEncoding error:NULL];
+}
+
+int main(int argc, char *argv[]) {
+	NSAutoreleasePool *ap = [[NSAutoreleasePool alloc] init];
+	float seconds = 5.0;
+	
+	{
+		SecTransformRef x = SecExternalSourceTransformCreate(NULL);
+		//SecTransformRef t = SecEncodeTransformCreate(kSecBase64Encoding, NULL);
+		SecTransformRef t = SecNullTransformCreate();
+		SecTransformRef g = SecTransformCreateGroupTransform();
+		assert(x && t && g);
+		SecTransformConnectTransforms(x, kSecTransformOutputAttributeName, t, kSecTransformInputAttributeName, g, NULL);
+		
+		timed_test(@"external source", seconds, t, ^(CFDataRef d){
+			SecExternalSourceSetValue(x, d, NULL);
+		});
+		
+	}
+	
+	// This second test has issues with the stock transform framwork -- it don't think the graph is valid (missing input)
+	{
+		//SecTransformRef t = SecEncodeTransformCreate(kSecBase64Encoding, NULL);
+		SecTransformRef t = SecNullTransformCreate();
+		assert(t);
+		
+		timed_test(@"set INPUT", seconds, t, ^(CFDataRef d){
+			SecTransformSetAttribute(t, kSecTransformInputAttributeName, d, NULL);
+		});
+	}
+}