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68 lines
2.1 KiB
68 lines
2.1 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "utils/base/logging.h"
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#include <stdlib.h>
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#include <exception>
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#include "utils/base/logging_raw.h"
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namespace libtextclassifier3 {
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namespace logging {
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namespace {
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// Returns pointer to beginning of last /-separated token from file_name.
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// file_name should be a pointer to a zero-terminated array of chars.
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// E.g., "foo/bar.cc" -> "bar.cc", "foo/" -> "", "foo" -> "foo".
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const char *JumpToBasename(const char *file_name) {
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if (file_name == nullptr) {
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return nullptr;
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}
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// Points to the beginning of the last encountered token.
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const char *last_token_start = file_name;
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while (*file_name != '\0') {
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if (*file_name == '/') {
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// Found token separator. A new (potentially empty) token starts after
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// this position. Notice that if file_name is a valid zero-terminated
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// string, file_name + 1 is a valid pointer (there is at least one char
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// after address file_name, the zero terminator).
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last_token_start = file_name + 1;
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}
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file_name++;
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}
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return last_token_start;
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}
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} // namespace
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LogMessage::LogMessage(LogSeverity severity, const char *file_name,
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int line_number)
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: severity_(severity) {
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stream_ << JumpToBasename(file_name) << ":" << line_number << ": ";
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}
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LogMessage::~LogMessage() {
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LowLevelLogging(severity_, /* tag = */ "txtClsf", stream_.message);
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if (severity_ == FATAL) {
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std::terminate(); // Will print a stacktrace (stdout or logcat).
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}
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}
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} // namespace logging
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} // namespace libtextclassifier3
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