add splice and vmsplice syscalls

based on patches by orc and Isaac Dunham.
This commit is contained in:
Rich Felker 2012-07-23 16:50:56 -04:00
parent 207460d097
commit 53147f902b
3 changed files with 28 additions and 0 deletions

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@ -9,6 +9,12 @@ extern "C" {
#define __NEED_pid_t
#define __NEED_mode_t
#ifdef _GNU_SOURCE
#define __NEED_size_t
#define __NEED_ssize_t
#define __NEED_struct_iovec
#endif
#include <bits/alltypes.h>
#include <bits/fcntl.h>
@ -108,6 +114,12 @@ struct f_owner_ex {
int type;
pid_t pid;
};
#define SPLICE_F_MOVE 1
#define SPLICE_F_NONBLOCK 2
#define SPLICE_F_MORE 4
#define SPLICE_F_GIFT 8
ssize_t vmsplice(int, const struct iovec *, size_t, unsigned);
ssize_t splice(int, off_t *, int, off_t *, size_t, unsigned);
#endif
#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)

8
src/linux/splice.c Normal file
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@ -0,0 +1,8 @@
#define _GNU_SOURCE
#include <fcntl.h>
#include "syscall.h"
ssize_t splice(int fd_in, off_t *off_in, int fd_out, off_t *off_out, size_t len, unsigned flags)
{
return syscall(SYS_splice, fd_in, off_in, fd_out, off_out, len, flags);
}

8
src/linux/vmsplice.c Normal file
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@ -0,0 +1,8 @@
#define _GNU_SOURCE
#include <fcntl.h>
#include "syscall.h"
ssize_t vmsplice(int fd, const struct iovec *iov, size_t cnt, unsigned flags)
{
return syscall(SYS_vmsplice, fd, iov, cnt, flags);
}