buffer.h

   1 /*
   2  * Copyright (c) 2016 Mohamed Aslan <maslan@sce.carleton.ca>
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef BUFFER_H
  18 #define BUFFER_H
  19
  20 #include <sys/types.h>
  21
  22 struct rbuffer {
  23         char    *rb_data;
  24         size_t   rb_capacity;
  25         size_t   rb_len;
  26         char    *rb_rp;
  27         char    *rb_wp;
  28         /* TODO: locking */
  29 };
  30
  31 struct rbuffer *        rbuffer_new(size_t);
  32 void                    rbuffer_free(struct rbuffer *);
  33 int                     rbuffer_write(struct rbuffer *, const char *, size_t);
  34 char *                  rbuffer_read(struct rbuffer *, size_t);
  35 char *                  rbuffer_readline(struct rbuffer *);
  36
  37 #endif
  38