add a few buffer_init*_forread variants to pretend we have type safety make sure buffer_init_staticcontents handles flushing attempts
15 lines
371 B
C
15 lines
371 B
C
#include "buffer.h"
|
|
|
|
extern ssize_t buffer_stubborn_read(ssize_t (*op)(int fd,char* buf,size_t l,void* c),int fd,char* buf, size_t len,void* cookie);
|
|
|
|
ssize_t buffer_feed(buffer* b) {
|
|
if (b->p==b->n) {
|
|
ssize_t w;
|
|
if ((w=buffer_stubborn_read(b->op.ropc,b->fd,b->x,b->a,b))<0)
|
|
return -1;
|
|
b->n=(size_t)w;
|
|
b->p=0;
|
|
}
|
|
return (ssize_t)(b->n-b->p);
|
|
}
|