1 /* 2 * Copyright 2020 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 #pragma once 18 19 #include <stddef.h> 20 21 #include <log/log.h> 22 23 static constexpr size_t kDefaultLogBufferSize = 256 * 1024; 24 static constexpr size_t kLogBufferMinSize = 64 * 1024; 25 static constexpr size_t kLogBufferMaxSize = 256 * 1024 * 1024; 26 27 bool IsValidBufferSize(size_t value); 28 29 // This returns the buffer size as set in system properties for use in LogBuffer::Init(). 30 // Note that `logcat -G` calls LogBuffer::SetSize(), which configures log buffer sizes without 31 // setting these properties, so this function should never be used except for LogBuffer::Init(). 32 // LogBuffer::GetSize() should be used instead within logd. Other processes can use 33 // android_logger_get_log_size() or `logcat -g` to query the actual allotted buffer size. 34 size_t GetBufferSizeFromProperties(log_id_t log_id); 35