138 lines
3.9 KiB
C
138 lines
3.9 KiB
C
#include "dtl.h"
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#include <time.h>
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#include <string.h>
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static enum LOG_LEVEL low_show_level = LOG_INFO;
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static uint32_t log_number = 1;
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static FILE *log_out_fp = NULL;
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static char log_head_format[LOG_HEAD_MAX_FORMAT] = "[%y-%m-%d-%n]";
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static char log_head[LOG_HEAD_MAX_FORMAT << 3];
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/*
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* 解析日志头
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*
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* Description:
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* 解析log_head_format中的特殊符号
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* ret 0 -> success
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* ret !0 -> Unrecognized symbol
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*/
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static void
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get_loghead(void);
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static void
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int_to_str(char *restrict dst, uint32_t num, size_t n);
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/*-----------------------------------------------------------*/
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/*-----------------------------------------------------------*/
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void
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log_setoutfile(const char *restrict filename)
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{
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if((log_out_fp = fopen(filename, "w")) == NULL)
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perror("log-dtl.c:log_setoutfile: Failed to open file !\n");
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}
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void
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log_setlevel(enum LOG_LEVEL level) {
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if(level < LOG_INFO || level > LOG_FATAL)
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low_show_level = LOG_INFO;
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else
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low_show_level = level;
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}
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void
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log_sethead(const char *restrict head) {
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if(strlen(head) >= LOG_HEAD_MAX_FORMAT)
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return;
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strncpy(log_head_format, head, LOG_HEAD_MAX_FORMAT);
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}
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void
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log_print(enum LOG_LEVEL level, const char *restrict message) {
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if(log_out_fp == NULL)
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log_out_fp = stdout;
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if(level < low_show_level)
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return;
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get_loghead();
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fputs(log_head, log_out_fp);
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switch(level) { // 打印错误等级
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case LOG_INFO:
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fputs("INFO:", log_out_fp);break;
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case LOG_WARNING:
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fputs("WARNING:", log_out_fp);break;
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case LOG_ERROR:
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fputs("ERROR:", log_out_fp);break;
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case LOG_FATAL:
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fputs("FATAL:", log_out_fp);break;
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}
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fputs(message, log_out_fp);
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fputc('\n', log_out_fp);
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log_number++; // 日志计数++
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}
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void
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get_loghead(void) {
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char buf[32];
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time_t now_time = time(NULL);
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clock_t core_time = clock() / CLOCKS_PER_SEC;
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struct tm *tm_time = localtime(&now_time);
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memset(log_head, '\0', sizeof(log_head));
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for(int i = 0; i < strlen(log_head_format); i++) {
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if(log_head_format[i] != '%') {
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log_head[strlen(log_head)] = log_head_format[i];
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continue;
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}
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i++;
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switch(log_head_format[i]) { // 特殊字符转换
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case 'Y':
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strftime(buf, 32, "%Y", tm_time);break;
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case 'M':
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strftime(buf, 32, "%m", tm_time);break;
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case 'd':
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strftime(buf, 32, "%d", tm_time);break;
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case 'h':
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strftime(buf, 32, "%H", tm_time);break;
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case 'm':
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strftime(buf, 32, "%M", tm_time);break;
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case 's':
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strftime(buf, 32, "%S", tm_time);break;
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case 'n':
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int_to_str(buf, log_number, 32);break;
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case 'c':
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int_to_str(buf, core_time, 32);break;
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default:
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strcpy(buf, "!!");
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}
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strcat(log_head, buf);
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}
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}
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void
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int_to_str(char *restrict dst, uint32_t num, size_t n) {
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// 逐位提取数字（反向存储）
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int start = 0;
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do {
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dst[start++] = num % 10 + '0';
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num /= 10;
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} while (num > 0);
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dst[start] = '\0';
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// 反转数字部分
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char buf[16];
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strncpy(buf, dst, 15);
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for(int i = 0; i < strlen(buf); i++)
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dst[--start] = buf[i];
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}
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