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handle and ignore SIGPIPE on Posix systems

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We must handle this signal or we'll get the default behavior of
exiting the process whenever we get an unexpected network
disconnection.
This commit is contained in:
Joel Dice 2010-10-14 23:43:35 +00:00
parent b3accf1b30
commit 081d2d68ce
1 changed files with 12 additions and 2 deletions
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14
src/posix.cpp
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@ -65,13 +65,16 @@ const int AltSegFaultSignal = SIGBUS;
const int AltSegFaultSignal = InvalidSignal;
#endif
const unsigned AltSegFaultSignalIndex = 3;
const int PipeSignal = SIGPIPE;
const unsigned PipeSignalIndex = 4;
const int signals[] = { VisitSignal,
SegFaultSignal,
InterruptSignal,
AltSegFaultSignal };
AltSegFaultSignal,
PipeSignal };
const unsigned SignalCount = 4;
const unsigned SignalCount = 5;
class MySystem;
MySystem* system;
@ -530,6 +533,7 @@ class MySystem: public System {
system = this;
registerHandler(&nullHandler, InterruptSignalIndex);
registerHandler(&nullHandler, PipeSignalIndex);
registerHandler(&nullHandler, VisitSignalIndex);
expect(this, make(&visitLock) == 0);
@ -786,6 +790,7 @@ class MySystem: public System {
registerHandler(0, InterruptSignalIndex);
registerHandler(0, VisitSignalIndex);
registerHandler(0, PipeSignalIndex);
system = 0;
::free(this);
@ -862,6 +867,10 @@ handleSignal(int signal, siginfo_t* info, void* context)
index = InterruptSignalIndex;
} break;
case PipeSignal: {
index = PipeSignalIndex;
} break;
default: abort();
}
@ -873,6 +882,7 @@ handleSignal(int signal, siginfo_t* info, void* context)
switch (signal) {
case VisitSignal:
case InterruptSignal:
case PipeSignal:
break;
default: