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#ifndef _BUFFER_H_
#define _BUFFER_H_
/* -----------------------------------------------------------------------
* Memory Buffers
*/
struct ha_buffer_internal;
/* A buffer which owns memory */
typedef struct ha_buffer
{
struct ha_buffer_internal* _ft;
struct ha_buffer_internal* _dt;
char* _pp;
char* _rp;
}
ha_buffer_t;
/* Initializes a buffer */
void ha_bufinit(ha_buffer_t* buf);
/* Frees all memory associated with a buffer */
void ha_buffree(ha_buffer_t* buf);
/* Resets a buffer for later reuse */
void ha_bufreset(ha_buffer_t* buf);
#define ha_buflen(buf) \
((buf)->_rp - (buf)->_pp)
#define ha_bufchar(buf) \
((!ha_buferr(buf) && ha_buflen(buf) > 0) ? *((buf)->_pp) : '\0' )
#define ha_bufdata(buf) \
((buf)->_pp)
#define ha_buferr(buf) \
((buf)->_dt == NULL)
/* Buffer input functions ------------------------------------------------ */
/* Read a line from an input handle */
int ha_bufreadline(int fd, ha_buffer_t* buf);
/* Parse the current line */
char* ha_bufparseline(ha_buffer_t* buf, int trim);
/* Parse a word from the current block */
char* ha_bufparseword(ha_buffer_t* buf, const char* delims);
#define ha_bufskip(buf) \
((buf)->_pp = (buf)->_rp)
#define ha_bufeat(buf) \
((!ha_buferr(buf) && ha_buflen(buf) > 0) ? ++((buf)->_pp) : (buf)->_pp)
/* Buffer output functions ----------------------------------------------- */
/* Adds multiple strings together */
char* ha_bufmcat(ha_buffer_t* buf, ...);
/* Copies a string to the buffer */
char* ha_bufcpy(ha_buffer_t* buf, const char* src);
/* Copies a portion of a string to the buffer */
char* ha_bufncpy(ha_buffer_t* buf, const char* src, size_t len);
/* Opens up the end of the current block so it can be joined by more data */
#define ha_bufjoin(buf) \
((buf)->_rp && ((buf)->_rp != (buf)->_pp) ? (buf)->_rp-- : (buf)->_rp)
#define ha_bufcat ha_bufcpy
/* Buffer allocation functions ------------------------------------------- */
/* Memory allocation */
void* ha_bufmalloc(ha_buffer_t* buf, size_t bytes);
void* ha_bufmemdup(ha_buffer_t* buf, const void* src, size_t bytes);
/* Buffer Encoding Functions --------------------------------------------- */
/* Encode an array of bytes in base 64 */
char* ha_bufenc64(ha_buffer_t* buf, const void* src, size_t bytes);
/* Decode an array of bytes from base 64 */
void* ha_bufdec64(ha_buffer_t* buf, const char* src, size_t* bytes);
/* Encode an array of bytes in hex */
char* ha_bufenchex(ha_buffer_t* buf, const void* src, size_t bytes);
/* Decode an array of bytes in hex */
void* ha_bufdechex(ha_buffer_t* buf, const char* src, size_t* bytes);
#endif /* _BUFFER_H_ */
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