1 /* 2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) 3 * 4 * Copyright (c) 1997-2021 ircd-hybrid development team 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 19 * USA 20 */ 21 22 /*! \file dbuf.h 23 * \brief A header for the dynamic buffers functions. 24 * \version $Id: dbuf.h 9858 2021-01-01 04:43:42Z michael $ 25 */ 26 27 #ifndef INCLUDED_dbuf_h 28 #define INCLUDED_dbuf_h 29 30 #define dbuf_length(x) ((x)->total_size) 31 #define dbuf_clear(x) dbuf_delete(x, dbuf_length(x)) 32 33 enum { DBUF_BLOCK_SIZE = 1024 }; 34 35 struct dbuf_block 36 { 37 int refs; 38 size_t size; 39 char data[DBUF_BLOCK_SIZE]; 40 }; 41 42 struct dbuf_queue 43 { 44 dlink_list blocks; 45 size_t total_size; 46 size_t pos; 47 }; 48 49 extern struct dbuf_block *dbuf_alloc(void); 50 extern void dbuf_ref_free(struct dbuf_block *); 51 extern void dbuf_add(struct dbuf_queue *, struct dbuf_block *); 52 extern void dbuf_delete(struct dbuf_queue *, size_t); 53 extern void dbuf_put_fmt(struct dbuf_block *, const char *, ...); 54 extern void dbuf_put_args(struct dbuf_block *, const char *, va_list); 55 extern void dbuf_put(struct dbuf_queue *, const char *, size_t); 56 #endif /* INCLUDED_dbuf_h */ 57