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llvm-mirror/lib/Support/Unix/Watchdog.inc
Nick Lewycky 6eeb281e09 Add a new watchdog timer interface. The interface does not permit handling timeouts, so
it's only really useful if you're going to crash anyways. Use it in the pretty stack trace
printer to kill the compiler if we hang while printing the stack trace.

llvm-svn: 177962
2013-03-26 01:27:52 +00:00

33 lines
778 B
C++

//===--- Unix/Watchdog.inc - Unix Watchdog Implementation -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the generic Unix implementation of the Watchdog class.
//
//===----------------------------------------------------------------------===//
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
namespace llvm {
namespace sys {
Watchdog::Watchdog(unsigned int seconds) {
#ifdef HAVE_UNISTD_H
alarm(seconds);
#endif
}
Watchdog::~Watchdog() {
#ifdef HAVE_UNISTD_H
alarm(0);
#endif
}
}
}