buffer_flush(3)buffer_flush(3)NAMEbuffer_flush - feed buffer to write function
SYNTAX
#include <buffer.h>
int buffer_flush(buffer* b);
DESCRIPTIONbuffer_flush feeds a string d[0], d[1], ..., d[dlen-1] to the write
operation by calling
op(fd,d,dlen)
If op successfully handles one or more bytes at the beginning of the
string, it must return the number of bytes handled; if this number is
smaller than dlen, buffer_flush will call op again with the rest of the
string. If op does not handle any bytes, and does not encounter an
error, it must return 0, or return -1 with errno set to EINTR; in
either case, buffer_flush will immediately call op again. If op encounā
ters an error, it must return -1 with errno set to something other than
EINTR; buffer_flush will pass the error to the caller.
On success, buffer_flush returns 0. On error, buffer_flush returns -1,
setting errno appropriately.
SEE ALSObuffer_init(3)buffer_flush(3)