NSTask appears to terminate early

Asked Jul 02 '15 at 14:14

Active Jul 02 '15 at 14:14

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So I'm using NSTask to run an assembler on a bitcode file using the following code:

NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/local/bin/llc";
task.arguments = @[bitcodePath, @"-o", asmPath];

[task launch];
[task waitUntilExit];

However the task doesn't seem to successfully complete, it only prints out a stub of the assembly it should generate. However if I comment out [task waitUntilExit], it appears to complete successfully, generating the full assembly file. However this doesn't help as I need to perform some cleanup AFTER the task finishes. Any idea why [task waitUntilExit] (or any code after [task launch] for that matter) would be causing issues?

asked Jul 02 '15 at 14:14

Slayter

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Is that code run in the main thread or a background thread? – Droppy Jul 02 '15 at 14:19
It's the main thread – Slayter Jul 02 '15 at 14:19
So that would block it, which isn't good. Can you try running it in a background thread? – Droppy Jul 02 '15 at 14:23
No change. Still only outputs the first part of the assembly. – Slayter Jul 02 '15 at 14:35

NSTask appears to terminate early

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