1 // Copyright 2012 Google LLC 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google LLC nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software 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 #ifndef CLIENT_LINUX_LOG_LOG_H_ 30 #define CLIENT_LINUX_LOG_LOG_H_ 31 32 #include <stddef.h> 33 34 namespace logger { 35 36 int write(const char* buf, size_t nbytes); 37 38 // In the case of Android the log can be written to the default system log 39 // (default behavior of write() above, or to the crash log (see 40 // writeToCrashLog() below). 41 #if defined(__ANDROID__) 42 43 // The logger must be initialized in a non-compromised context. 44 void initializeCrashLogWriter(); 45 46 // Once initialized, writeToCrashLog is safe to use in a compromised context, 47 // even if the initialization failed, in which case this will silently fall 48 // back on write(). 49 int writeToCrashLog(const char* buf); 50 #endif 51 52 } // namespace logger 53 54 #endif // CLIENT_LINUX_LOG_LOG_H_ 55