libowfat/buffer/buffer_put.c
leitner 695843c79e small buffer optimization
fix botched noipv6 case in buffer_tcp6
2015-04-23 15:15:08 +00:00

29 lines
626 B
C

#include <string.h>
#include "buffer.h"
#ifdef __x86_64__
#include <x86intrin.h>
#endif
extern int buffer_stubborn(ssize_t (*op)(),int fd,const char* buf, size_t len,void* cookie);
#ifndef __unlikely
#ifdef __GNUC__
#define __unlikely(x) __builtin_expect((x),0)
#else
#define __unlikely(x) (x)
#endif
#endif
int buffer_put(buffer* b,const char* buf,size_t len) {
if (__unlikely(len>b->a-b->p)) { /* doesn't fit */
if (buffer_flush(b)==-1) return -1;
if (len>b->a) {
if (buffer_stubborn(b->op,b->fd,buf,len,b)<0) return -1;
return 0;
}
}
memcpy(b->x+b->p, buf, len);
b->p+=len;
return 0;
}