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authorJeff Dike <jdike@addtoit.com>2006-07-10 04:45:11 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 13:24:24 -0700
commit8e64d96aeb495709c13307e2d79f3ee37e96aa4e (patch)
tree41532136fdd081d561343be876d3068464821910 /arch/um/os-Linux/sigio.c
parentbfaafd7184f044c63cd937cb0ffb4334b4ec7635 (diff)
[PATCH] uml: remove os_isatty
os_isatty can be made to disappear by moving maybe_sigio_broken from kernel to user code. This also lets write_sigio_workaround become static. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/os-Linux/sigio.c')
-rw-r--r--arch/um/os-Linux/sigio.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c
index 00e9388e947..0d2422a7d72 100644
--- a/arch/um/os-Linux/sigio.c
+++ b/arch/um/os-Linux/sigio.c
@@ -233,7 +233,7 @@ static struct pollfd *setup_initial_poll(int fd)
return p;
}
-void write_sigio_workaround(void)
+static void write_sigio_workaround(void)
{
unsigned long stack;
struct pollfd *p;
@@ -314,6 +314,18 @@ out_close1:
close(l_write_sigio_fds[1]);
}
+void maybe_sigio_broken(int fd, int read)
+{
+ if(!isatty(fd))
+ return;
+
+ if((read || pty_output_sigio) && (!read || pty_close_sigio))
+ return;
+
+ write_sigio_workaround();
+ add_sigio_fd(fd, read);
+}
+
void sigio_cleanup(void)
{
if(write_sigio_pid != -1){