Commit 6f029c3e authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

Still try to splice as many memory pages as possible

parent 77cb7de9
......@@ -83,7 +83,7 @@ static void *Thread (void *data)
stream_t *stream = data;
stream_sys_t *p_sys = stream->p_sys;
#ifdef __linux__
uintptr_t page_mask = sysconf (_SC_PAGE_SIZE) - 1;
ssize_t page_mask = sysconf (_SC_PAGE_SIZE) - 1;
#endif
int fd = p_sys->write_fd;
bool error = false;
......@@ -108,14 +108,16 @@ static void *Thread (void *data)
for (ssize_t i = 0, j; i < len; i += j)
{
struct iovec iov[1] = { { buf + i, len - i, } };
#ifdef __linux__
if (((len | i) & page_mask) == 0)
j = vmsplice (fd, iov, 1, SPLICE_F_GIFT);
if ((len - i) <= page_mask) /* incomplete last page */
j = write (fd, buf + i, len - i);
else
{
struct iovec iov = { buf + i, (len - i) & ~page_mask, };
j = vmsplice (fd, &iov, 1, SPLICE_F_GIFT);
}
#else
j = writev (fd, iov, 1);
j = write (fd, buf + i, len - i);
#endif
if (j <= 0)
{
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment