71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
#include "debug.h"
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#include <stdarg.h>
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#include <string.h>
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/**
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* @file debug.c
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* @brief Debug and logging system implementation
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*
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* Provides a configurable logging system with timestamp formatting,
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* level-based filtering, and optional file:line information.
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*/
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// Global debug level (default: no debug output)
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debug_level_t g_debug_level = DEBUG_LEVEL_NONE;
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/**
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* @brief Initialize the debug system with a specific level
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* @param level Debug level (0-5, clamped to valid range)
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*/
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void debug_init(int level) {
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if (level < 0) level = 0;
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if (level > 5) level = 5;
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g_debug_level = (debug_level_t)level;
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}
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/**
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* @brief Core logging function
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* @param level Debug level for this message
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* @param file Source file name (__FILE__)
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* @param line Source line number (__LINE__)
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* @param format printf-style format string
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* @param ... Variable arguments for format string
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*/
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void debug_log(debug_level_t level, const char* file, int line, const char* format, ...) {
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// Get timestamp
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time_t now = time(NULL);
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struct tm* tm_info = localtime(&now);
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char timestamp[32];
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strftime(timestamp, sizeof(timestamp), "%Y-%m-%d %H:%M:%S", tm_info);
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// Get level string
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const char* level_str = "UNKNOWN";
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switch (level) {
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case DEBUG_LEVEL_ERROR: level_str = "ERROR"; break;
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case DEBUG_LEVEL_WARN: level_str = "WARN "; break;
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case DEBUG_LEVEL_INFO: level_str = "INFO "; break;
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case DEBUG_LEVEL_DEBUG: level_str = "DEBUG"; break;
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case DEBUG_LEVEL_TRACE: level_str = "TRACE"; break;
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default: break;
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}
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// Print prefix with timestamp and level
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printf("[%s] [%s] ", timestamp, level_str);
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// Print source location when debug level is TRACE (5) or higher
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if (file && g_debug_level >= DEBUG_LEVEL_TRACE) {
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// Extract just the filename (not full path)
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const char* filename = strrchr(file, '/');
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filename = filename ? filename + 1 : file;
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printf("[%s:%d] ", filename, line);
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}
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// Print message
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va_list args;
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va_start(args, format);
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vprintf(format, args);
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va_end(args);
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printf("\n");
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fflush(stdout);
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} |