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base-linux: Don't busywait if lx_pollpid returns 0

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This happened when I killed one of the genode clients which was
tracked via an expception_handler. In this case the wait4 syscall
returned 0 and the for(;;) was looped eternally. This caused an
100% CPU utilization for the core binary.
This commit is contained in:
Torsten Hilbrich 2013-02-21 15:53:18 +01:00 committed by Norman Feske
parent 257cf4800d
commit ab89304ffd
1 changed files with 1 additions and 1 deletions
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2
base-linux/src/core/platform.cc
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@ -102,7 +102,7 @@ void Platform::wait_for_exit()
for (;;) {
int const pid = lx_pollpid();
if (pid == -1)
if (pid <= 0)
break;
Platform_thread::submit_exception(pid);