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Addressed code review comments.
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1 changed files with 11 additions and 5 deletions
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@ -71,7 +71,9 @@ struct WorkerThread<QueueData, WorkData> {
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rng: XorShiftRng,
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}
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static SPIN_COUNT: uint = 128;
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static SPIN_COUNT: u32 = 128;
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static SPINS_UNTIL_BACKOFF: u32 = 100;
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static BACKOFF_INCREMENT_IN_US: u32 = 5;
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impl<QueueData: Send, WorkData: Send> WorkerThread<QueueData, WorkData> {
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/// The main logic. This function starts up the worker and listens for
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@ -85,10 +87,11 @@ impl<QueueData: Send, WorkData: Send> WorkerThread<QueueData, WorkData> {
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ExitMsg => return,
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};
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let mut back_off_sleep = 0 as u32;
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// We're off!
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//
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// FIXME(pcwalton): Can't use labeled break or continue cross-crate due to a Rust bug.
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let mut back_off_sleep = 0 as u32;
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loop {
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// FIXME(pcwalton): Nasty workaround for the lack of labeled break/continue
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// cross-crate.
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@ -114,10 +117,13 @@ impl<QueueData: Send, WorkData: Send> WorkerThread<QueueData, WorkData> {
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}
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}
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if (i>100) {
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unsafe {usleep(back_off_sleep as u32)};
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back_off_sleep = back_off_sleep + 5;
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if i > SPINS_UNTIL_BACKOFF {
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unsafe {
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usleep(back_off_sleep as u32);
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}
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back_off_sleep += BACKOFF_INCREMENT_IN_US;
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}
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if i == SPIN_COUNT {
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match self.port.try_recv() {
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Ok(StopMsg) => {
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