1*11be35a1SLionel Sambuc // Copyright 2010 Google Inc. 2*11be35a1SLionel Sambuc // All rights reserved. 3*11be35a1SLionel Sambuc // 4*11be35a1SLionel Sambuc // Redistribution and use in source and binary forms, with or without 5*11be35a1SLionel Sambuc // modification, are permitted provided that the following conditions are 6*11be35a1SLionel Sambuc // met: 7*11be35a1SLionel Sambuc // 8*11be35a1SLionel Sambuc // * Redistributions of source code must retain the above copyright 9*11be35a1SLionel Sambuc // notice, this list of conditions and the following disclaimer. 10*11be35a1SLionel Sambuc // * Redistributions in binary form must reproduce the above copyright 11*11be35a1SLionel Sambuc // notice, this list of conditions and the following disclaimer in the 12*11be35a1SLionel Sambuc // documentation and/or other materials provided with the distribution. 13*11be35a1SLionel Sambuc // * Neither the name of Google Inc. nor the names of its contributors 14*11be35a1SLionel Sambuc // may be used to endorse or promote products derived from this software 15*11be35a1SLionel Sambuc // without specific prior written permission. 16*11be35a1SLionel Sambuc // 17*11be35a1SLionel Sambuc // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18*11be35a1SLionel Sambuc // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19*11be35a1SLionel Sambuc // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20*11be35a1SLionel Sambuc // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21*11be35a1SLionel Sambuc // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22*11be35a1SLionel Sambuc // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23*11be35a1SLionel Sambuc // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24*11be35a1SLionel Sambuc // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25*11be35a1SLionel Sambuc // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26*11be35a1SLionel Sambuc // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27*11be35a1SLionel Sambuc // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*11be35a1SLionel Sambuc 29*11be35a1SLionel Sambuc /// \file utils/process/system.hpp 30*11be35a1SLionel Sambuc /// Indirection to perform system calls. 31*11be35a1SLionel Sambuc /// 32*11be35a1SLionel Sambuc /// The indirections exposed in this file are provided to allow unit-testing of 33*11be35a1SLionel Sambuc /// particular system behaviors (e.g. failures). The caller of a routine in 34*11be35a1SLionel Sambuc /// this library is allowed, for testing purposes only, to explicitly replace 35*11be35a1SLionel Sambuc /// the pointers in this file with custom functions to inject a particular 36*11be35a1SLionel Sambuc /// behavior into the library code. 37*11be35a1SLionel Sambuc /// 38*11be35a1SLionel Sambuc /// Do not include this header from other header files. 39*11be35a1SLionel Sambuc /// 40*11be35a1SLionel Sambuc /// It may be nice to go one step further and completely abstract the library 41*11be35a1SLionel Sambuc /// functions in here to provide exception-based error reporting. 42*11be35a1SLionel Sambuc 43*11be35a1SLionel Sambuc #if !defined(UTILS_PROCESS_SYSTEM_HPP) 44*11be35a1SLionel Sambuc #define UTILS_PROCESS_SYSTEM_HPP 45*11be35a1SLionel Sambuc 46*11be35a1SLionel Sambuc extern "C" { 47*11be35a1SLionel Sambuc #include <unistd.h> 48*11be35a1SLionel Sambuc } 49*11be35a1SLionel Sambuc 50*11be35a1SLionel Sambuc namespace utils { 51*11be35a1SLionel Sambuc namespace process { 52*11be35a1SLionel Sambuc namespace detail { 53*11be35a1SLionel Sambuc 54*11be35a1SLionel Sambuc 55*11be35a1SLionel Sambuc extern int (*syscall_dup2)(const int, const int); 56*11be35a1SLionel Sambuc extern pid_t (*syscall_fork)(void); 57*11be35a1SLionel Sambuc extern int (*syscall_open)(const char*, const int, ...); 58*11be35a1SLionel Sambuc extern int (*syscall_pipe)(int[2]); 59*11be35a1SLionel Sambuc extern pid_t (*syscall_waitpid)(const pid_t, int*, const int); 60*11be35a1SLionel Sambuc 61*11be35a1SLionel Sambuc 62*11be35a1SLionel Sambuc } // namespace detail 63*11be35a1SLionel Sambuc } // namespace process 64*11be35a1SLionel Sambuc } // namespace utils 65*11be35a1SLionel Sambuc 66*11be35a1SLionel Sambuc #endif // !defined(UTILS_PROCESS_SYSTEM_HPP) 67