1// Copyright 2012 Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution. 13// * Neither the name of Google Inc. nor the names of its contributors 14// may be used to endorse or promote products derived from this software 15// without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29/// \file utils/signals/interrupts.hpp 30/// Handling of interrupts. 31 32#if !defined(UTILS_SIGNALS_INTERRUPTS_HPP) 33#define UTILS_SIGNALS_INTERRUPTS_HPP 34 35#include <unistd.h> 36 37#include "utils/noncopyable.hpp" 38 39namespace utils { 40namespace signals { 41 42 43/// Provides a scope in which interrupts can be detected and handled. 44/// 45/// This RAII-modeled object installs signal handler when instantiated and 46/// removes them upon destruction. While this object is active, the 47/// check_interrupt() free function can be used to determine if an interrupt has 48/// happened. 49class interrupts_handler : noncopyable { 50public: 51 interrupts_handler(void); 52 ~interrupts_handler(void); 53}; 54 55 56/// Disables interrupts while the object is alive. 57class interrupts_inhibiter : noncopyable { 58public: 59 interrupts_inhibiter(void); 60 ~interrupts_inhibiter(void); 61}; 62 63 64void check_interrupt(void); 65 66void add_pid_to_kill(const pid_t); 67void remove_pid_to_kill(const pid_t); 68 69 70} // namespace signals 71} // namespace utils 72 73#endif // !defined(UTILS_SIGNALS_INTERRUPTS_HPP) 74