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 39 namespace utils { 40 namespace 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. 49 class interrupts_handler : noncopyable { 50 public: 51 interrupts_handler(void); 52 ~interrupts_handler(void); 53 }; 54 55 56 /// Disables interrupts while the object is alive. 57 class interrupts_inhibiter : noncopyable { 58 public: 59 interrupts_inhibiter(void); 60 ~interrupts_inhibiter(void); 61 }; 62 63 64 void check_interrupt(void); 65 66 void add_pid_to_kill(const pid_t); 67 void remove_pid_to_kill(const pid_t); 68 69 70 } // namespace signals 71 } // namespace utils 72 73 #endif // !defined(UTILS_SIGNALS_INTERRUPTS_HPP) 74