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/* Copyright (c) Hardy Simpson
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __zlog_buf_h
#define __zlog_buf_h
/* buf, is a dynamic expand buffer for one single log,
* as one single log will interlace if use multiple write() to file.
* and buf is always keep in a thread, to make each thread has its
* own buffer to avoid lock.
*/
#include <stdarg.h>
#include <stdint.h>
typedef struct zlog_buf_s {
char *start;
char *tail;
char *end;
char *end_plus_1;
size_t size_min;
size_t size_max;
size_t size_real;
char truncate_str[MAXLEN_PATH + 1];
size_t truncate_str_len;
} zlog_buf_t;
zlog_buf_t *zlog_buf_new(size_t min, size_t max, const char *truncate_str);
void zlog_buf_del(zlog_buf_t * a_buf);
void zlog_buf_profile(zlog_buf_t * a_buf, int flag);
int zlog_buf_vprintf(zlog_buf_t * a_buf, const char *format, va_list args);
int zlog_buf_append(zlog_buf_t * a_buf, const char *str, size_t str_len);
int zlog_buf_adjust_append(zlog_buf_t * a_buf, const char *str, size_t str_len,
int left_adjust, int zero_pad, size_t in_width, size_t out_width);
int zlog_buf_printf_dec32(zlog_buf_t * a_buf, uint32_t ui32, int width);
int zlog_buf_printf_dec64(zlog_buf_t * a_buf, uint64_t ui64, int width);
int zlog_buf_printf_hex(zlog_buf_t * a_buf, uint32_t ui32, int width);
#define zlog_buf_restart(a_buf) do { \
a_buf->tail = a_buf->start; \
} while(0)
#define zlog_buf_len(a_buf) (a_buf->tail - a_buf->start)
#define zlog_buf_str(a_buf) (a_buf->start)
#define zlog_buf_seal(a_buf) do {*(a_buf)->tail = '\0';} while (0)
#endif
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