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Make loadRAMBundle a C function, not a method

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Summary: This makes the state it uses more explicit. It also makes a bug with performance measurement obvious: if we early return to error, we never mark stop for `RCTPLRAMStartupCodeSize`.

Reviewed By: javache

Differential Revision: D3542751

fbshipit-source-id: e6c1e3f3a76098ca37b8078f6e9abc805ad2d9da
This commit is contained in:
Adam Ernst 2016-07-11 13:14:17 -07:00 committed by Facebook Github Bot 8
parent b33424e5ed
commit 8fb6111fa5
1 changed files with 7 additions and 9 deletions
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16
React/Executors/RCTJSCExecutor.mm
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@ -666,8 +666,12 @@ static void installBasicSynchronousHooksOnContext(JSContext *context)
uint32_t magicNumber = NSSwapLittleIntToHost(*((uint32_t *)script.bytes));
BOOL isRAMBundle = magicNumber == RCTRAMBundleMagicNumber;
if (isRAMBundle) {
[_performanceLogger markStartForTag:RCTPLRAMBundleLoad];
NSError *error;
script = [self loadRAMBundle:sourceURL error:&error];
script = loadRAMBundle(sourceURL, &error, _randomAccessBundle);
[self registerNativeRequire];
[_performanceLogger markStopForTag:RCTPLRAMBundleLoad];
[_performanceLogger setValue:script.length forTag:RCTPLRAMStartupCodeSize];
if (error) {
if (onComplete) {
@ -892,9 +896,8 @@ static RandomAccessBundleStartupCode readRAMBundle(file_ptr bundle, RandomAccess
return {std::move(code), startupCodeSize};
}
- (NSData *)loadRAMBundle:(NSURL *)sourceURL error:(NSError **)error
static NSData *loadRAMBundle(NSURL *sourceURL, NSError **error, RandomAccessBundleData &randomAccessBundle)
{
[_performanceLogger markStartForTag:RCTPLRAMBundleLoad];
file_ptr bundle(fopen(sourceURL.path.UTF8String, "r"), fclose);
if (!bundle) {
if (error) {
@ -903,10 +906,7 @@ static RandomAccessBundleStartupCode readRAMBundle(file_ptr bundle, RandomAccess
return nil;
}
[self registerNativeRequire];
auto startupCode = readRAMBundle(std::move(bundle), _randomAccessBundle);
auto startupCode = readRAMBundle(std::move(bundle), randomAccessBundle);
if (startupCode.isEmpty()) {
if (error) {
*error = RCTErrorWithMessage(@"Error loading RAM Bundle");
@ -914,8 +914,6 @@ static RandomAccessBundleStartupCode readRAMBundle(file_ptr bundle, RandomAccess
return nil;
}
[_performanceLogger markStopForTag:RCTPLRAMBundleLoad];
[_performanceLogger setValue:startupCode.size forTag:RCTPLRAMStartupCodeSize];
return [NSData dataWithBytesNoCopy:startupCode.code.release() length:startupCode.size freeWhenDone:YES];
}