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signal: fix infinite loop 

Fixes #1433
This commit is contained in:
Martin Stein 2015-03-05 12:10:22 +01:00 committed by Christian Helmuth
parent 7923b287d9
commit 726e6b3e5d
1 changed files with 5 additions and 7 deletions
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12
repos/base/src/base/signal/signal.cc
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@ -280,9 +280,8 @@ Signal_context_capability Signal_receiver::manage(Signal_context *context)
/* register context at process-wide registry */
signal_context_registry()->insert(&context->_registry_le);
bool try_again;
do {
try_again = false;
bool try_again = true;
for (;;) {
try {
/* use signal context as imprint */
@ -292,8 +291,8 @@ Signal_context_capability Signal_receiver::manage(Signal_context *context)
} catch (Signal_session::Out_of_metadata) {
/* give up if the error occurred a second time */
if (try_again)
break;
if (try_again) { try_again = false; }
else { break; }
size_t const quota = 1024*sizeof(long);
char buf[64];
@ -302,9 +301,8 @@ Signal_context_capability Signal_receiver::manage(Signal_context *context)
PINF("upgrading quota donation for SIGNAL session (%zu bytes)", quota);
env()->parent()->upgrade(signal_connection()->cap(), buf);
try_again = true;
}
} while (try_again);
};
return Signal_context_capability();
}