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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* |
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* Copyright (C) 1990 Markku Savela |
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* Copyright (C) 2013 by the Hybrid Development Team. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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|
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/*! \file dbuf.h |
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* \brief Interfaces and declarations for dealing with data buffers. |
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* \version $Id$ |
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*/ |
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|
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#ifndef INCLUDED_dbuf_h |
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#define INCLUDED_dbuf_h |
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#ifndef INCLUDED_sys_types_h |
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#include <sys/types.h> /* size_t */ |
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#define INCLUDED_sys_types_h |
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#endif |
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|
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/* |
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* These two globals should be considered read only |
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*/ |
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extern int DBufAllocCount; |
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extern int DBufUsedCount; |
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|
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struct DBufBuffer; |
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|
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/** Queue of data chunks. */ |
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struct DBuf |
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{ |
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unsigned int length; /**< Current number of bytes stored */ |
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struct DBufBuffer *head; /**< First data buffer, if length > 0 */ |
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struct DBufBuffer *tail; /**< Last data buffer, if length > 0 */ |
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}; |
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|
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/** Return number of bytes in a DBuf. */ |
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#define DBufLength(dyn) ((dyn)->length) |
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|
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/** Release the entire content of a DBuf. */ |
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#define DBufClear(dyn) dbuf_delete((dyn), DBufLength(dyn)) |
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|
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/* |
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* Prototypes |
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*/ |
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extern void dbuf_delete(struct DBuf *, unsigned int); |
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extern int dbuf_put(struct DBuf *, const char *, unsigned int); |
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extern const char *dbuf_map(const struct DBuf *, unsigned int *); |
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extern unsigned int dbuf_get(struct DBuf *, char *, unsigned int); |
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extern unsigned int dbuf_getmsg(struct DBuf *, char *, unsigned int); |
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extern void dbuf_count_memory(size_t *, size_t *); |
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#endif /* INCLUDED_dbuf_h */ |
