sdcc/support/util/dbuf.h

   1 /*
   2   dbuf.h - Dynamic buffer interface
   3   version 1.4.0, 2011-03-27
   4
   5   Copyright (c) 2002-2011 Borut Razem
   6
   7   This software is provided 'as-is', without any express or implied
   8   warranty.  In no event will the authors be held liable for any damages
   9   arising from the use of this software.
  10
  11   Permission is granted to anyone to use this software for any purpose,
  12   including commercial applications, and to alter it and redistribute it
  13   freely, subject to the following restrictions:
  14
  15   1. The origin of this software must not be misrepresented; you must not
  16      claim that you wrote the original software. If you use this software
  17      in a product, an acknowledgment in the product documentation would be
  18      appreciated but is not required.
  19   2. Altered source versions must be plainly marked as such, and must not be
  20      misrepresented as being the original software.
  21   3. This notice may not be removed or altered from any source distribution.
  22
  23   Borut Razem
  24   borut.razem@siol.net
  25 */
  26
  27
  28 #ifndef __DBUF_H
  29 #define __DBUF_H
  30
  31 #include <stddef.h>
  32
  33 struct dbuf_s {
  34   size_t alloc;   /* size of allocated buffer in bytes */
  35   size_t len;     /* actual length of the buffer in bytes */
  36   void *buf;      /* pointer to the buffer, allocated on heap */
  37 };
  38
  39
  40 #ifdef __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 int _dbuf_expand(struct dbuf_s *dbuf, size_t size);
  45 struct dbuf_s *dbuf_new(size_t size);
  46 int dbuf_init(struct dbuf_s *dbuf, size_t size);
  47 int dbuf_is_initialized (struct dbuf_s *dbuf);
  48 int dbuf_set_length(struct dbuf_s *dbuf, size_t size);
  49 int dbuf_append(struct dbuf_s *dbuf, const void *buf, size_t len);
  50 int dbuf_prepend(struct dbuf_s *dbuf, const void *buf, size_t len);
  51 const void *dbuf_get_buf(const struct dbuf_s *dbuf);
  52 size_t dbuf_get_length(const struct dbuf_s *dbuf);
  53 const char *dbuf_c_str(struct dbuf_s *dbuf);
  54 int dbuf_trim(struct dbuf_s *dbuf);
  55 void *dbuf_detach(struct dbuf_s *dbuf);
  56 char *dbuf_detach_c_str(struct dbuf_s *dbuf);
  57 void dbuf_destroy(struct dbuf_s *dbuf);
  58 void dbuf_delete(struct dbuf_s *dbuf);
  59 void dbuf_free(const void *buf);
  60
  61 #ifdef __cplusplus
  62 }
  63 #endif
  64
  65 #endif  /* __DBUF_H */