On Fri, Nov 08, 2013 at 09:42:57AM -0500, Jasper St. Pierre wrote: > We want to make sure we don't write files to disk. /tmp on some systems is > backed by a disk, not tmpfs.
If you want real temporary files that don't survive a reboot, /tmp is a better bet than /var/tmp. See e.g. http://refspecs.linuxfoundation.org/FHS_2.3/fhs-2.3.html#VARTMPTEMPORARYFILESPRESERVEDBETWEE which says: "The /var/tmp directory is made available for programs that require temporary files or directories that are preserved between system reboots. Therefore, data stored in /var/tmp is more persistent than data in /tmp. Files and directories located in /var/tmp must not be deleted when the system is booted. Although data stored in /var/tmp is typically deleted in a site-specific manner, it is recommended that deletions occur at a less frequent interval than /tmp." On NetBSD for example, /var/tmp is where the vi recovery files live. Thomas > On Fri, Nov 8, 2013 at 2:53 AM, Mark Kettenis <mark.kette...@xs4all.nl>wrote: > > > > From: Alan Coopersmith <alan.coopersm...@oracle.com> > > > Date: Thu, 7 Nov 2013 20:55:44 -0800 > > > > > > Signed-off-by: Alan Coopersmith <alan.coopersm...@oracle.com> > > > --- > > > Makefile | 9 +++++---- > > > shmfd.c | 4 ++++ > > > 2 files changed, 9 insertions(+), 4 deletions(-) > > > > Ah, is this the example code I have been looking for the last couple > > of days? > > > > Anyway, wouldn't it be better to use /tmp instead of adding this > > (admittedly small) #ifdef spaghetti? > > > > > diff --git a/Makefile b/Makefile > > > index e77f938..672979e 100644 > > > --- a/Makefile > > > +++ b/Makefile > > > @@ -1,7 +1,8 @@ > > > -CFLAGS=-Wall -O0 -g $(shell pkg-config --cflags xcb-shm xcb-aux > > xcb-dri3 xcb-present xshmfence) > > > -LIBS=$(shell pkg-config --libs xcb-shm xcb-aux xcb-dri3 xcb-present > > xshmfence) > > > +CFLAGS=-Wall -O0 -g $(shell pkg-config --cflags xcb-shm xcb-aux > > xcb-dri3 xcb-present) -m64 > > > +LIBS=$(LDFLAGS) $(shell pkg-config --libs xcb-shm xcb-aux xcb-dri3 > > xcb-present) > > > > > > -all: shmfd dri3 futex xfence present pipefence shmtest > > > +#all: shmfd dri3 futex xfence present pipefence shmtest > > > +all: shmfd present > > > > > > SHMFD_OBJS=shmfd.o > > > > > > @@ -42,4 +43,4 @@ clean: > > > rm -f shmfd $(SHMFD_OBJS) > > > rm -f dri3 $(DRI3_OBJS) > > > rm -f futex $(FUTEX_OBJS) > > > - rm -f present $(PRESENT_OBJS) > > > \ No newline at end of file > > > + rm -f present $(PRESENT_OBJS) > > > diff --git a/shmfd.c b/shmfd.c > > > index 4dee9de..cdd3889 100644 > > > --- a/shmfd.c > > > +++ b/shmfd.c > > > @@ -32,7 +32,11 @@ int > > > make_shm(int size, void **addrp) > > > { > > > void *addr; > > > +#ifdef linux > > > char template[] = "/run/shm/shmfd-XXXXXX"; > > > +#else > > > + char template[] = "/var/tmp/shmfd-XXXXXX"; > > > +#endif > > > int fd = mkstemp(template); > > > > > > if (fd < 0) > > > -- > > > 1.7.9.2 > > > > > > _______________________________________________ > > > xorg-devel@lists.x.org: X.Org development > > > Archives: http://lists.x.org/archives/xorg-devel > > > Info: http://lists.x.org/mailman/listinfo/xorg-devel > > > > > _______________________________________________ > > xorg-devel@lists.x.org: X.Org development > > Archives: http://lists.x.org/archives/xorg-devel > > Info: http://lists.x.org/mailman/listinfo/xorg-devel > > > > > > -- > Jasper > _______________________________________________ > xorg-devel@lists.x.org: X.Org development > Archives: http://lists.x.org/archives/xorg-devel > Info: http://lists.x.org/mailman/listinfo/xorg-devel _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel