78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
#ifndef MBGL_PLATFORM_LOG
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#define MBGL_PLATFORM_LOG
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#include <mbgl/platform/event.hpp>
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#include <mbgl/util/noncopyable.hpp>
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#include <memory>
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#include <string>
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namespace mbgl {
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class Log {
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public:
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class Observer : private util::noncopyable {
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public:
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virtual ~Observer() = default;
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// When an observer is set, this function will be called for every log
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// message. Returning true will consume the message.
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virtual bool onRecord(EventSeverity severity, Event event, int64_t code, const std::string &msg) = 0;
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};
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static void setObserver(std::unique_ptr<Observer> Observer);
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static std::unique_ptr<Observer> removeObserver();
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private:
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template <typename T, size_t N>
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constexpr static bool includes(const T e, const T (&l)[N], const size_t i = 0) {
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return i < N && (l[i] == e || includes(e, l, i + 1));
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}
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public:
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template <typename ...Args>
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static inline void Debug(Event event, Args&& ...args) {
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Record(EventSeverity::Debug, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Info(Event event, Args&& ...args) {
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Record(EventSeverity::Info, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Warning(Event event, Args&& ...args) {
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Record(EventSeverity::Warning, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Error(Event event, Args&& ...args) {
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Record(EventSeverity::Error, event, ::std::forward<Args>(args)...);
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}
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template <typename ...Args>
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static inline void Record(EventSeverity severity, Event event, Args&& ...args) {
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if (!includes(severity, disabledEventSeverities) &&
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!includes(event, disabledEvents) &&
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!includes({ severity, event }, disabledEventPermutations)) {
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record(severity, event, ::std::forward<Args>(args)...);
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}
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}
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private:
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static void record(EventSeverity severity, Event event, const std::string &msg);
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static void record(EventSeverity severity, Event event, const char* format, ...);
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static void record(EventSeverity severity, Event event, int64_t code);
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static void record(EventSeverity severity, Event event, int64_t code, const std::string &msg);
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// This method is the data sink that must be implemented by each platform we
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// support. It should ideally output the error message in a human readable
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// format to the developer.
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static void platformRecord(EventSeverity severity, const std::string &msg);
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};
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}
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#endif
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