Fix for bug 97866. Fixes async file I/O to ensure that we always call WaitOnThisThread if we're doing an async call (which does not wait if the notifier has already fired). Also don't bother checking return values from PBRead/WriteAsync, since they never fail, but do check the return value of the PBReadSync call. Fixes synchronization problems on Mac OS X. r=gordon, a=wtc.
Fix for bug 97866. Fixes async file I/O to ensure that we always call WaitOnThisThread if we're doing an async call (which does not wait if the notifier has already fired). Also don't bother checking return values from PBRead/WriteAsync, since they never fail, but do check the return value of the PBReadSync call. Fixes synchronization problems on Mac OS X. r=gordon, a=wtc.

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr