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async-llvm(26): Print error when failing to acquire Jobserver token.

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This commit is contained in:
Michael Woerister 2017-07-31 15:41:41 +02:00
parent a9a0ea921b
commit cacc31f8a3
1 changed files with 17 additions and 13 deletions
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30
src/librustc_trans/back/write.rs
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@ -1389,21 +1389,25 @@ fn start_executing_work(sess: &Session,
// this to spawn a new unit of work, or it may get dropped
// immediately if we have no more work to spawn.
Message::Token(token) => {
if let Ok(token) = token {
tokens.push(token);
match token {
Ok(token) => {
tokens.push(token);
if main_thread_worker_state == MainThreadWorkerState::LLVMing {
// If the main thread token is used for LLVM work
// at the moment, we turn that thread into a regular
// LLVM worker thread, so the main thread is free
// to react to translation demand.
main_thread_worker_state = MainThreadWorkerState::Idle;
running += 1;
if main_thread_worker_state == MainThreadWorkerState::LLVMing {
// If the main thread token is used for LLVM work
// at the moment, we turn that thread into a regular
// LLVM worker thread, so the main thread is free
// to react to translation demand.
main_thread_worker_state = MainThreadWorkerState::Idle;
running += 1;
}
}
Err(e) => {
let msg = &format!("failed to acquire jobserver token: {}", e);
shared_emitter.fatal(msg);
// Exit the coordinator thread
panic!()
}
} else {
shared_emitter.fatal("failed to acquire jobserver token");
// Exit the coordinator thread
panic!()
}
}