168 lines
4.5 KiB
C++
168 lines
4.5 KiB
C++
/*
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* Copyright (C) 2015 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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#ifndef TNT_UTILS_LOG_H
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#define TNT_UTILS_LOG_H
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#include <string>
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#include <utils/ThreadLocal.h>
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#include <utils/bitset.h>
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#include <utils/compiler.h> // ssize_t is a POSIX type.
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// We always use TINY IO, it seems to work well enough and that a nice way to not
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// break the android builds
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#define UTILS_TINY_IO 1
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#ifndef UTILS_TINY_IO
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# ifdef ANDROID
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# define UTILS_TINY_IO 1
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# else
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# define UTILS_TINY_IO 0
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# endif
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#endif
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#if !UTILS_TINY_IO
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#include <ios>
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#include <ostream>
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#endif
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namespace utils {
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namespace io {
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#if UTILS_TINY_IO
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class ostream {
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public:
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enum Priority {
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DEBUG, ERROR, WARNING, INFO
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};
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explicit ostream(Priority p) noexcept : mPriority(p) { }
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ostream& operator<<(short value) noexcept;
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ostream& operator<<(unsigned short value) noexcept;
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ostream& operator<<(int value) noexcept;
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ostream& operator<<(unsigned int value) noexcept;
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ostream& operator<<(long value) noexcept;
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ostream& operator<<(unsigned long value) noexcept;
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ostream& operator<<(long long value) noexcept;
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ostream& operator<<(unsigned long long value) noexcept;
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ostream& operator<<(float value) noexcept;
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ostream& operator<<(double value) noexcept;
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ostream& operator<<(long double value) noexcept;
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ostream& operator<<(bool value) noexcept;
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ostream& operator<<(const void* value) noexcept;
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ostream& operator<<(const char* string) noexcept;
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ostream& operator<<(ostream& (* f)(ostream&)) noexcept { return f(*this); }
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private:
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ostream& dec() noexcept;
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ostream& hex() noexcept;
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ostream& flush() noexcept;
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friend ostream& hex(ostream& s) noexcept;
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friend ostream& dec(ostream& s) noexcept;
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friend ostream& endl(ostream& s) noexcept;
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friend ostream& flush(ostream& s) noexcept;
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enum type {
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SHORT, USHORT, INT, UINT, LONG, ULONG, LONG_LONG, ULONG_LONG, DOUBLE, LONG_DOUBLE
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};
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bool mShowHex = false;
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Priority mPriority;
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const char* getFormat(type t) const noexcept;
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class Buffer {
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char mStorage[1024];
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public:
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char* curr = mStorage;
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size_t size = sizeof(mStorage);
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const char* get() const noexcept { return mStorage; }
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void advance(ssize_t n) noexcept;
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void reset() noexcept;
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};
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Buffer& getBuffer() noexcept { return mData; }
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static UTILS_DECLARE_TLS(Buffer) mData;
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};
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// handles std::string
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inline ostream& operator << (ostream& o, std::string const& s) noexcept { return o << s.c_str(); }
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// handles utils::bitset
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inline ostream& operator << (ostream& o, utils::bitset32 const& s) noexcept {
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return o << (void*)uintptr_t(s.getValue());
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}
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// handles vectors from libmath (but we do this generically, without needing a dependency on libmath)
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template<template<typename T> class VECTOR, typename T>
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inline ostream& operator<<(ostream& stream, const VECTOR<T>& v) {
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stream << "< ";
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for (size_t i = 0; i < v.size() - 1; i++) {
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stream << T(v[i]) << ", ";
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}
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stream << T(v[v.size() - 1]) << " >";
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return stream;
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}
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inline ostream& hex(ostream& s) noexcept { return s.hex(); }
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inline ostream& dec(ostream& s) noexcept { return s.dec(); }
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inline ostream& endl(ostream& s) noexcept { s << "\n"; return s.flush(); }
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inline ostream& flush(ostream& s) noexcept { return s.flush(); }
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#else // UTILS_TINY_IO
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using ostream = std::ostream;
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inline ostream& hex(ostream& s) noexcept { return s << std::hex; }
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inline ostream& dec(ostream& s) noexcept { return s << std::dec; }
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inline ostream& endl(ostream& s) noexcept { return s << std::endl; }
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inline ostream& flush(ostream& s) noexcept { return s << std::flush; }
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#endif // UTILS_TINY_IO
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} // namespace io
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struct Loggers {
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// DEBUG level logging stream
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io::ostream& d;
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// ERROR level logging stream
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io::ostream& e;
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// WARNING level logging stream
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io::ostream& w;
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// INFORMATION level logging stream
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io::ostream& i;
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};
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extern Loggers slog;
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} // namespace utils
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#endif // TNT_UTILS_LOG_H
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