69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
#include "Log.h"
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#include <stdarg.h>
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#include <time.h>
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#include <string.h>
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static FILE* LogFile = NULL; // 日志文件指针
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static char DefaultLogFile[] = "libdm_log.txt"; // 默认日志文件
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// 获取当前时间字符串
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static void GetTimeStr(char* buffer, size_t size) {
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time_t now = time(NULL);
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struct tm* t = localtime(&now);
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strftime(buffer, size, "%Y-%m-%d %H:%M:%S", t);
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}
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// 日志级别对应的字符串
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static const char* GetLogLevelStr(LogLevel level) {
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switch (level) {
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case Info: return "INFO";
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case Warn: return "WARNING";
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case Error: return "ERROR";
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case Debug: return "DEBUG";
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default: return "UNKNOWN";
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}
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}
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// 初始化日志文件
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void InitLog(const char* logFilePath) {
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if (LogFile) {
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CloseLog(); // 关闭已有文件
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}
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const char* filePath = logFilePath ? logFilePath : DefaultLogFile;
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LogFile = fopen(filePath, "a"); // 以追加模式打开日志文件
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if (!LogFile) {
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fprintf(stderr, "Failed to open log file: %s\n", filePath);
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}
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}
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// 写日志的核心函数
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void WriteLog(LogLevel level, const char* format, ...) {
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if (!LogFile) {
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InitLog(NULL); // 如果未初始化日志文件，则使用默认文件
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}
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if (LogFile) {
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char timeStr[20];
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GetTimeStr(timeStr, sizeof(timeStr));
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fprintf(LogFile, "[%s] [%s] ", timeStr, GetLogLevelStr(level));
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va_list args;
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va_start(args, format);
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vfprintf(LogFile, format, args); // 格式化写入日志信息
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va_end(args);
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fprintf(LogFile, "\n");
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fflush(LogFile); // 确保日志实时写入
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}
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}
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// 关闭日志文件
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void CloseLog() {
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if (LogFile) {
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fclose(LogFile);
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LogFile = NULL;
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}
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}
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