1*6a6c8299Sjmmv // Copyright 2012 Google Inc. 2*6a6c8299Sjmmv // All rights reserved. 3*6a6c8299Sjmmv // 4*6a6c8299Sjmmv // Redistribution and use in source and binary forms, with or without 5*6a6c8299Sjmmv // modification, are permitted provided that the following conditions are 6*6a6c8299Sjmmv // met: 7*6a6c8299Sjmmv // 8*6a6c8299Sjmmv // * Redistributions of source code must retain the above copyright 9*6a6c8299Sjmmv // notice, this list of conditions and the following disclaimer. 10*6a6c8299Sjmmv // * Redistributions in binary form must reproduce the above copyright 11*6a6c8299Sjmmv // notice, this list of conditions and the following disclaimer in the 12*6a6c8299Sjmmv // documentation and/or other materials provided with the distribution. 13*6a6c8299Sjmmv // * Neither the name of Google Inc. nor the names of its contributors 14*6a6c8299Sjmmv // may be used to endorse or promote products derived from this software 15*6a6c8299Sjmmv // without specific prior written permission. 16*6a6c8299Sjmmv // 17*6a6c8299Sjmmv // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18*6a6c8299Sjmmv // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19*6a6c8299Sjmmv // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20*6a6c8299Sjmmv // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21*6a6c8299Sjmmv // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22*6a6c8299Sjmmv // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23*6a6c8299Sjmmv // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24*6a6c8299Sjmmv // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25*6a6c8299Sjmmv // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26*6a6c8299Sjmmv // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27*6a6c8299Sjmmv // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*6a6c8299Sjmmv 29*6a6c8299Sjmmv /// \file utils/signals/interrupts.hpp 30*6a6c8299Sjmmv /// Handling of interrupts. 31*6a6c8299Sjmmv 32*6a6c8299Sjmmv #if !defined(UTILS_SIGNALS_INTERRUPTS_HPP) 33*6a6c8299Sjmmv #define UTILS_SIGNALS_INTERRUPTS_HPP 34*6a6c8299Sjmmv 35*6a6c8299Sjmmv #include <unistd.h> 36*6a6c8299Sjmmv 37*6a6c8299Sjmmv #include "utils/noncopyable.hpp" 38*6a6c8299Sjmmv 39*6a6c8299Sjmmv namespace utils { 40*6a6c8299Sjmmv namespace signals { 41*6a6c8299Sjmmv 42*6a6c8299Sjmmv 43*6a6c8299Sjmmv /// Provides a scope in which interrupts can be detected and handled. 44*6a6c8299Sjmmv /// 45*6a6c8299Sjmmv /// This RAII-modeled object installs signal handler when instantiated and 46*6a6c8299Sjmmv /// removes them upon destruction. While this object is active, the 47*6a6c8299Sjmmv /// check_interrupt() free function can be used to determine if an interrupt has 48*6a6c8299Sjmmv /// happened. 49*6a6c8299Sjmmv class interrupts_handler : noncopyable { 50*6a6c8299Sjmmv public: 51*6a6c8299Sjmmv interrupts_handler(void); 52*6a6c8299Sjmmv ~interrupts_handler(void); 53*6a6c8299Sjmmv }; 54*6a6c8299Sjmmv 55*6a6c8299Sjmmv 56*6a6c8299Sjmmv /// Disables interrupts while the object is alive. 57*6a6c8299Sjmmv class interrupts_inhibiter : noncopyable { 58*6a6c8299Sjmmv public: 59*6a6c8299Sjmmv interrupts_inhibiter(void); 60*6a6c8299Sjmmv ~interrupts_inhibiter(void); 61*6a6c8299Sjmmv }; 62*6a6c8299Sjmmv 63*6a6c8299Sjmmv 64*6a6c8299Sjmmv void check_interrupt(void); 65*6a6c8299Sjmmv 66*6a6c8299Sjmmv void add_pid_to_kill(const pid_t); 67*6a6c8299Sjmmv void remove_pid_to_kill(const pid_t); 68*6a6c8299Sjmmv 69*6a6c8299Sjmmv 70*6a6c8299Sjmmv } // namespace signals 71*6a6c8299Sjmmv } // namespace utils 72*6a6c8299Sjmmv 73*6a6c8299Sjmmv #endif // !defined(UTILS_SIGNALS_INTERRUPTS_HPP) 74