临时LOG调试接口

#ifndef __TEST_OUTPUT_H__
#define __TEST_OUTPUT_H__

#define OUTPUT_DIR      "/data/test_output/"        /* 输出目录 */
#define OUTPUT_FILE     "<log_file_name>.output"    /* 输出文件 */
#define MAX_MSG_LENTH   (300)                       /* 单次日志最大长度, 尽量不要开太大，防止爆栈，实在需要的话用堆申请 */
#define FULL_PATH_LENTH (100)                       /* 文件全路径最大长度 */
#define FULL_CMD_LENTH  (50 + FULL_PATH_LENTH)      /* 文件创建命令缓冲区最大长度 */

inline static void test_output(char *output_info)
{
    FILE *fp = NULL;
    char full_path[FULL_PATH_LENTH + 1];
    char full_cmd[FULL_CMD_LENTH + 1];

    /* CONSTRUCT FULL PATH AND CMD */
    memset(full_path, 0, sizeof(full_path));
    memset(full_cmd, 0, sizeof(full_cmd));
    snprintf(full_path, FULL_PATH_LENTH, "%s%s", OUTPUT_DIR, OUTPUT_FILE);
    snprintf(full_cmd, FULL_CMD_LENTH, "%s%s%s%s", "mkdir -p ", OUTPUT_DIR, ";touch ", full_path);

    if (access(full_path, F_OK)) {
        system(full_cmd);
    }

    fp = fopen(full_path, "a");
    if (fp == NULL) {
        return;
    }

    if (output_info == NULL) {
        fwrite("test_output internal error!!! output_info is null!\n", strlen("test_output internal error!!! output_info is null!\n"), 1, fp);
        return;
    } else if (strlen(output_info) >= MAX_MSG_LENTH) {
        fwrite("test_output internal error!!! output_info exceed lenth!\n", strlen("test_output internal error!!! output_info exceed lenth!\n"), 1, fp);
        return;
    } else {
        fwrite(output_info, strlen(output_info), 1, fp);
    }

    fclose(fp);

    return;
}

/* 日志输出宏，有空可以添加消息抑制逻辑及日志等级逻辑 */
#define TEST_OUTPUT(output_info, args...)    do {                                   \
    char buffer[MAX_MSG_LENTH + 1];                                                 \
    time_t t;                                                                       \
    time(&t);                                                                       \
    struct tm *tmp_time = localtime(&t);                                            \
    char s[100];                                                                    \
    /* 打印时间 */                                                                   \
    strftime(s, sizeof(s), "%04Y%02m%02d %H:%M:%S", tmp_time);                      \
    printf("%d: %s\n", (int)t, s);                                                  \
    /* __FILE__ 打印文件名,可能超 buffer 长度 */                                      \
    snprintf(buffer, MAX_MSG_LENTH, "[FUNC >> %s:%d t:%s] : "output_info"\n",       \
        __func__, __LINE__, s, ##args);                                             \
    test_output(buffer);                                                            \
} while (0)

#define IF_TRUE_TEST_OUTPUT(cond, output_info, args...) do {                        \
    if (cond) {                                                                     \
        TEST_OUTPUT(output_info, ##args);                                           \
    }                                                                               \
} while (0)
#endif