logging.cpp

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#include "../icedb/logging.hpp"
#include <iostream>
#include <fstream>
#include <memory>
#include <sstream>
#include "../icedb/misc/os_functions.h"
namespace {
    int logConsoleThreshold = icedb::logging::PRIORITIES::ICEDB_LOG_DEBUG_WARNING;
    int logDebugThreshold = 0;
    std::string logFile;
    std::shared_ptr<std::ofstream> lOut;
    icedb::logging::log_handler_ft logHandler = nullptr;
}
namespace icedb {
    namespace logging {
        void emit_log(
            const std::string &channel,
            const std::string &message,
            PRIORITIES p)
        {
            emit_log(channel.c_str(), message.c_str(), p);
        }
        void register_log_handler(log_handler_ft p) { logHandler = p; }
        void emit_log(
            const char* channel,
            const char* message,
            PRIORITIES p)
        {
            if (logHandler) {
                logHandler(channel, message, p);
            }
            else {
                std::string m;
                std::ostringstream out;
                out << channel << " - " << message << std::endl;
                m = out.str();
                if (p >= logConsoleThreshold)
                    std::cerr << m;
                if (p >= logDebugThreshold) {
                    ICEDB_writeDebugString(m.c_str());
                }
                if (lOut) {
                    *(lOut.get()) << m;
                }
            }
        }
        void setupLogging(
            int argc,
            char** argv,
            const log_properties* lps) {
            if (lps) {
                logConsoleThreshold = lps->consoleLogThreshold;
                logDebugThreshold = lps->debuggerLogThreshold;
                logFile = lps->logFile;
                if (logFile.size()) {
                    lOut = std::shared_ptr<std::ofstream>(new std::ofstream(logFile.c_str()));
                }
            }
        }

    }
}