mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-29 13:11:06 +00:00
Code Issues 1 Projects Releases Wiki Activity

gst_writev: respect IOV_MAX for the writev iovec array #439

Browse source
This commit is contained in:
Jim Mason 2019-09-06 19:23:01 +01:00 committed by Tim-Philipp Müller
parent e6bd5b4193
commit c2d10bd6c4
1 changed files with 11 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
plugins/elements/gstelements_private.c
View file

@ -121,19 +121,27 @@ struct iovec
#define FDSINK_MAX_ALLOCA_SIZE (64 * 1024) /* 64k */
#define FDSINK_MAX_MALLOC_SIZE ( 8 * 1024 * 1024) /* 8M */
/* UIO_MAXIOV is documented in writev(2), but <sys/uio.h> only
* declares it on osx/ios if defined(KERNEL) */
/* UIO_MAXIOV is documented in writev(2) on osx/ios, but <sys/uio.h>
* only declares it if defined(KERNEL) */
#ifndef UIO_MAXIOV
#define UIO_MAXIOV 512
#endif
/*
* POSIX writev(2) documents IOV_MAX as the max length of the iov array.
* If IOV_MAX is undefined, fall back to the legacy UIO_MAXIOV.
*/
#ifndef IOV_MAX
#define IOV_MAX UIO_MAXIOV
#endif
static gssize
gst_writev (gint fd, const struct iovec *iov, gint iovcnt, gsize total_bytes)
{
gssize written;
#ifdef HAVE_SYS_UIO_H
if (iovcnt <= UIO_MAXIOV) {
if (iovcnt <= IOV_MAX) {
do {
written = writev (fd, iov, iovcnt);
} while (written < 0 && errno == EINTR);