int log_set_prefix(const char *base_path, const char *filename_prefix)
{
int result;
char logfile[LOG_MAX_PATH_SIZE];
if (!logger_init_flag) {
fprintf(stderr, "log module may be not init!\n");
return 1;
}
if (!base_path || !filename_prefix) {
fprintf(stderr, "base_path or filename_prefix can not be empty\n");
return 1;
}
if ((strlen(base_path) + strlen(filename_prefix) + sizeof("/log/.log") - 1) >= LOG_MAX_PATH_SIZE) {
fprintf(stderr, "full file name of log file can not be longer than %d\n", LOG_MAX_PATH_SIZE);
return 1;
}
if ((result = check_and_mk_log_dir(base_path)) != 0) {
return result;
}
snprintf(logfile, LOG_MAX_PATH_SIZE, "%s/"LOG_PATH"/%s.log", base_path, filename_prefix);
if ((pContext->log_fd = open(logfile, O_WRONLY | O_CREAT | O_APPEND, 0644)) < 0) {
fprintf(stderr, "open log file \"%s\" to write fail, errno: %d, error info: %s", logfile, errno, STRERROR(errno));
pContext->log_fd = STDERR_FILENO;
return (errno != 0) ? errno : EACCES;
}
if (!pContext->log_base_path) {
pContext->log_base_path = (char *)malloc(LOG_MAX_PATH_SIZE);
if (pContext->log_base_path == NULL) {
fprintf(stderr, "malloc %d bytes fail, errno: %d, error info: %s", LOG_MAX_PATH_SIZE, errno, STRERROR(errno));
return (errno != 0) ? errno : ENOMEM;
}
pContext->log_filename_prefix = (char *)malloc(LOG_MAX_PATH_SIZE);
if (pContext->log_filename_prefix == NULL) {
free(pContext->log_base_path);
pContext->log_base_path = NULL;
fprintf(stderr, "malloc %d bytes fail, errno: %d, error info: %s", LOG_MAX_PATH_SIZE, errno, STRERROR(errno));
return (errno != 0) ? errno : ENOMEM;
}
}
strcpy(pContext->log_base_path, base_path);
strcpy(pContext->log_filename_prefix, filename_prefix);
return 0;
}
int log_set_prefix_ex(LogContext *pContext, const char *base_path, \
const char *filename_prefix)
{
int result;
if ((result=check_and_mk_log_dir(base_path)) != 0)
{
return result;
}
snprintf(pContext->log_filename, MAX_PATH_SIZE, "%s/logs/%s.log", \
base_path, filename_prefix);
return log_open(pContext);
}