Function xlog_reset_log_file

common/log/xlog.c:313–345

* Clear the log file, and reopen from the path. */

 * Clear the log file, and reopen from the path.
*/
XLOG_API int xlog_reset_log_file(xlog_context* ctx, int receiver_index, const char *file_path)
{
    FILE *fh = NULL;
    int ret = 0;

    if (ctx == NULL || file_path == NULL || *file_path == 0){
        return -1;
    }

    pthread_mutex_lock(&ctx->_mutext);

    if (receiver_index < ctx->_count && ctx->_receivers[receiver_index]._file != NULL)
    {
        fclose(ctx->_receivers[receiver_index]._file);
        ctx->_receivers[receiver_index]._file = NULL;

        fh = fopen(file_path, "w+");

        if (fh == NULL){
            strcpy(ctx->_error, "open file error");
            ret = -1;
        }
        else{
            ctx->_receivers[receiver_index]._file = fh;
        }
    }
    else{
        ret = -1;
    }

    pthread_mutex_unlock(&ctx->_mutext);
    return ret;
}

/**
 * 	remove a log data receiver,return 0 if success.