5
static int oneread(int (*op)(),int fd,char *buf,unsigned int len)
11
if (r == -1) if (errno == error_intr) continue;
16
static int getthis(buffer *s,char *buf,unsigned int len)
18
if (len > s->p) len = s->p;
20
byte_copy(buf,len,s->x + s->n);
25
int buffer_feed(buffer *s)
29
if (s->p) return s->p;
30
r = oneread(s->op,s->fd,s->x,s->n);
34
if (s->n > 0) byte_copyr(s->x + s->n,r,s->x);
38
int buffer_bget(buffer *s,char *buf,unsigned int len)
42
if (s->p > 0) return getthis(s,buf,len);
43
if (s->n <= len) return oneread(s->op,s->fd,buf,s->n);
44
r = buffer_feed(s); if (r <= 0) return r;
45
return getthis(s,buf,len);
48
int buffer_get(buffer *s,char *buf,unsigned int len)
52
if (s->p > 0) return getthis(s,buf,len);
53
if (s->n <= len) return oneread(s->op,s->fd,buf,len);
54
r = buffer_feed(s); if (r <= 0) return r;
55
return getthis(s,buf,len);
58
char *buffer_peek(buffer *s)
63
void buffer_seek(buffer *s,unsigned int len)