Andrey Vyazovoy Vyazovoy
Vyazovoy
/ NSData+PSPDFFoundation.m
Created
November 14, 2015 18:19
— forked from steipete/NSData+PSPDFFoundation.m
Haven't done much with dispatch_io yet so I'd appreciate a few more eyeballs on this. Am I closing things correctly in all error conditions? Are there other knobs I could change to make things even faster? (I know I've been lazy on the NSError's)
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| static NSData *PSPDFCalculateSHA256FromFileURL(NSURL *fileURL, CC_LONG dataLength, NSError **error) { | |
| NSCParameterAssert(fileURL); | |
| dispatch_queue_t shaQueue = dispatch_queue_create("com.pspdfkit.sha256-queue", DISPATCH_QUEUE_SERIAL); | |
| __block dispatch_io_t readChannel; | |
| void (^processIntError)(int intError) = ^(int intError) { | |
| if (intError != 0) { | |
| PSPDFLogWarning(@"Stream error: %d", intError); | |
| if (error) *error = [NSError errorWithDomain:@"SHA256Error" code:100 userInfo:@{NSLocalizedDescriptionKey: @"failed to open file for calculating SHA256."}]; |