You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
#define _FILE_OFFSET_BITS 64
|
|
#include "io_internal.h"
|
|
#include "havebsdsf.h"
|
|
|
|
#if defined(HAVE_BSDSENDFILE)
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/uio.h>
|
|
|
|
int64 io_sendfile(int64 s,int64 fd,uint64 off,uint64 n) {
|
|
off_t sbytes;
|
|
int r=sendfile(fd,s,off,n,0,&sbytes,0);
|
|
if (r==-1)
|
|
return (errno==EAGAIN?(sbytes?sbytes:-1):-3);
|
|
return n;
|
|
}
|
|
#elif defined(__linux__)
|
|
|
|
#if defined(__GLIBC__)
|
|
#include <sys/sendfile.h>
|
|
#elif defined(__dietlibc__)
|
|
#include <sys/sendfile.h>
|
|
#else
|
|
#include <linux/unistd.h>
|
|
_syscall4(int,sendfile,int,out,int,in,long *,offset,unsigned long,count)
|
|
#endif
|
|
|
|
int64 io_sendfile(int64 s,int64 fd,uint64 off,uint64 n) {
|
|
off_t o=off;
|
|
io_entry* e=array_get(&io_fds,sizeof(io_entry),s);
|
|
off_t i=sendfile(s,fd,&o,n);
|
|
if (i==-1) {
|
|
if (e) {
|
|
e->canwrite=0;
|
|
e->next_write=-1;
|
|
}
|
|
if (errno!=EAGAIN) i=-3;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
#else
|
|
|
|
#include <unistd.h>
|
|
|
|
#define BUFSIZE 16384
|
|
|
|
int64 io_sendfile(int64 out,int64 in,uint64 off,uint64 bytes) {
|
|
char buf[BUFSIZE];
|
|
int n,m;
|
|
uint64 sent=0;
|
|
io_entry* e=array_get(&io_fds,sizeof(io_entry),out);
|
|
if (lseek(in,off,SEEK_SET) != off)
|
|
return -1;
|
|
while (bytes>0) {
|
|
char* tmp=buf;
|
|
if ((n=read(in,tmp,(bytes<BUFSIZE)?bytes:BUFSIZE))<=0)
|
|
return (sent?sent:-1);
|
|
while (n>0) {
|
|
if ((m=write(out,tmp,n))<0) {
|
|
if (m==-1) {
|
|
if (e) {
|
|
e->canwrite=0;
|
|
e->next_write=-1;
|
|
}
|
|
return errno==EAGAIN?(sent?sent:-1):-3;
|
|
}
|
|
goto abort;
|
|
}
|
|
sent+=m;
|
|
n-=m;
|
|
tmp+=m;
|
|
}
|
|
}
|
|
abort:
|
|
return sent;
|
|
}
|
|
|
|
#endif
|