NAME

       buffer_init - initialize buffer structure

SYNTAX

       #include <buffer.h>

       void buffer_init(buffer &b,
                       ssize_t (*op)(int,char*,size_t),
                       int fd, char* y, size_t ylen);

DESCRIPTION

       buffer_init  prepares  b  to  store a string in y[0], y[1], ..., y[ylen-1].  Initially the
       string is empty.

       buffer_init also prepares b to use the read/write operation specified by op and fd.

       You can use

         buffer b = BUFFER_INIT(op,fd,y,ylen);

       to initialize b statically if op, fd, y, and ylen are compile-time constants.

       You can call buffer_init again at any time. Note that this discards the currently buffered
       string.

EXAMPLE

         #include <buffer.h>
         #include <open.h>

         char buf[4096];
         int fd=open_read("/etc/services");
         buffer input;

         if (fd>=0) {
           char x;
           buffer_init(&input,read,fd,buf,sizeof buf);
           while (buffer_get(&input,&x,1)==1) {
             buffer_put(buffer_1,&x,1);
             if (x=='\n') break;
           }
           buffer_flush(buffer_1);
         }

SEE ALSO

       buffer_flush(3), buffer(3)

                                                                                   buffer_init(3)