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authorcinap_lenrek <cinap_lenrek@gmx.de>2013-10-04 15:57:05 +0200
committercinap_lenrek <cinap_lenrek@gmx.de>2013-10-04 15:57:05 +0200
commit0be917ff4d11268824d58598f85348436010f2bd (patch)
treed8718e842d679b25784b334ac9b8f67688a9f8b9 /sys/src/libdraw
parent40cf5957e0b59a8490b05dc65f2c3b165949f544 (diff)
libdraw: make newwindow() unmount the old window
newwindow() used to mount the new window directly on /dev, resulting in the old window and the new one being mounted over each other. we now try to unmount the old window from /dev first, mount new window to /mnt/wsys (replacing the old) and then bind /mnt/wsys before /dev. if theres no /mnt/wsys, just mount window directly before /dev.
Diffstat (limited to 'sys/src/libdraw')
-rw-r--r--sys/src/libdraw/newwindow.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/src/libdraw/newwindow.c b/sys/src/libdraw/newwindow.c
index 88784adf5..7b385a322 100644
--- a/sys/src/libdraw/newwindow.c
+++ b/sys/src/libdraw/newwindow.c
@@ -14,14 +14,19 @@ newwindow(char *str)
if(wsys == nil)
return -1;
fd = open(wsys, ORDWR);
- free(wsys);
- if(fd < 0)
+ if(fd < 0){
+ free(wsys);
return -1;
+ }
rfork(RFNAMEG);
+ unmount(wsys, "/dev"); /* drop reference to old window */
+ free(wsys);
if(str)
snprint(buf, sizeof buf, "new %s", str);
else
strcpy(buf, "new");
- return mount(fd, -1, "/dev", MBEFORE, buf);
+ if(mount(fd, -1, "/mnt/wsys", MREPL, buf) < 0)
+ return mount(fd, -1, "/dev", MBEFORE, buf);
+ return bind("/mnt/wsys", "/dev", MBEFORE);
}