1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "lang_id/common/lite_base/compact-logging.h" 18 19 #include <stdlib.h> 20 21 #include <iostream> 22 23 #include "lang_id/common/lite_base/compact-logging-raw.h" 24 25 #ifndef SAFTM_LOGGING_TAG 26 27 // Tag inserted in the prefix of the generated log messages. The user can 28 // override this by defining this macro on the blaze build command-line. 29 #define SAFTM_LOGGING_TAG "saftm" 30 #endif 31 32 namespace libtextclassifier3 { 33 namespace mobile { 34 namespace internal_logging { 35 36 namespace { 37 // Returns pointer to beginning of last /-separated token from file_name. 38 // file_name should be a pointer to a zero-terminated array of chars. 39 // E.g., "foo/bar.cc" -> "bar.cc", "foo/" -> "", "foo" -> "foo". 40 const char *JumpToBasename(const char *file_name) { 41 if (file_name == nullptr) { 42 return nullptr; 43 } 44 45 // Points to the beginning of the last encountered token. 46 const char *last_token_start = file_name; 47 while (*file_name != '\0') { 48 if (*file_name == '/') { 49 // Found token separator. A new (potentially empty) token starts after 50 // this position. Notice that if file_name is a valid zero-terminated 51 // string, file_name + 1 is a valid pointer (there is at least one char 52 // after address file_name, the zero terminator). 53 last_token_start = file_name + 1; 54 } 55 file_name++; 56 } 57 return last_token_start; 58 } 59 } // namespace 60 61 LogMessage::LogMessage(LogSeverity severity, const char *file_name, 62 int line_number) 63 : severity_(severity) { 64 stream_ << JumpToBasename(file_name) << ":" << line_number << ": "; 65 } 66 67 LogMessage::~LogMessage() { 68 LogSeverity level = severity_; 69 if (level == DFATAL) { 70 #ifdef NDEBUG 71 level = ERROR; 72 #else 73 level = FATAL; 74 #endif 75 } 76 LowLevelLogging(level, /* tag = */ SAFTM_LOGGING_TAG, stream_.message); 77 if (level == FATAL) { 78 exit(1); 79 } 80 } 81 82 } // namespace internal_logging 83 } // namespace mobile 84 } // namespace nlp_saft 85
