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/*********************************************************
* Copyright (C) 1998 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* dynbuf.h --
*
* Dynamic buffers
*/
#ifndef __DYNBUF_H__
# define __DYNBUF_H__
#include <string.h>
#include "vm_basic_types.h"
#include "vm_assert.h"
typedef struct DynBuf {
char *data;
size_t size;
size_t allocated;
} DynBuf;
void
DynBuf_Init(DynBuf *b); // IN
void
DynBuf_Destroy(DynBuf *b); // IN
void *
DynBuf_AllocGet(DynBuf const *b); // IN
void
DynBuf_Attach(DynBuf *b, // IN
size_t size, // IN
void *data); // IN
void *
DynBuf_Detach(DynBuf *b); // IN
Bool
DynBuf_Enlarge(DynBuf *b, // IN
size_t min_size); // IN
Bool
DynBuf_Append(DynBuf *b, // IN
void const *data, // IN
size_t size); // IN
Bool
DynBuf_Trim(DynBuf *b); // IN
Bool
DynBuf_Copy(DynBuf *src, // IN
DynBuf *dest); // OUT
void
DynBuf_SafeInternalAppend(DynBuf *b, // IN
void const *data, // IN
size_t size, // IN
char const *file, // IN
unsigned int lineno); // IN
#define DynBuf_SafeAppend(_buf, _data, _size) \
DynBuf_SafeInternalAppend(_buf, _data, _size, __FILE__, __LINE__)
/*
*-----------------------------------------------------------------------------
*
* DynBuf_Get --
*
* Retrieve a pointer to the data contained in a dynamic buffer --hpreg
*
* Results:
* The pointer to the data
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
#if defined(SWIG)
static void *
#else
static INLINE void *
#endif
DynBuf_Get(DynBuf const *b) // IN
{
ASSERT(b);
return b->data;
}
/*
*-----------------------------------------------------------------------------
*
* DynBuf_GetSize --
*
* Returns the current size of the dynamic buffer --hpreg
*
* Results:
* The current size of the dynamic buffer
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
#if defined(SWIG)
static size_t
#else
static INLINE size_t
#endif
DynBuf_GetSize(DynBuf const *b) // IN
{
ASSERT(b);
return b->size;
}
/*
*-----------------------------------------------------------------------------
*
* DynBuf_SetSize --
*
* Set the current size of a dynamic buffer --hpreg
*
* Results:
* None
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
#if defined(SWIG)
static void
#else
static INLINE void
#endif
DynBuf_SetSize(DynBuf *b, // IN
size_t size) // IN
{
ASSERT(b);
ASSERT(size <= b->allocated);
b->size = size;
}
/*
*-----------------------------------------------------------------------------
*
* DynBuf_GetAllocatedSize --
*
* Returns the current allocated size of the dynamic buffer --hpreg
*
* Results:
* The current allocated size of the dynamic buffer
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
#if defined(SWIG)
static size_t
#else
static INLINE size_t
#endif
DynBuf_GetAllocatedSize(DynBuf const *b) // IN
{
ASSERT(b);
return b->allocated;
}
/*
*----------------------------------------------------------------------------
*
* DynBuf_AppendString --
*
* Append the string to the specified DynBuf object. Basically a
* fancy strcat().
*
* Results:
* TRUE on success
* FALSE on failure (not enough memory)
*
*
* Side effects:
* DynBuf may change its size or allocate additional memory.
*
*----------------------------------------------------------------------------
*/
#if defined(SWIG)
static Bool
#else
static INLINE Bool
#endif
DynBuf_AppendString(DynBuf *buf, // IN
const char *string) // IN
{
/*
* Make sure to copy the NULL.
*/
return DynBuf_Append(buf, string, strlen(string) + 1);
}
#endif /* __DYNBUF_H__ */
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