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authorDenys Vlasenko2014-09-22 21:14:02 +0200
committerDenys Vlasenko2014-09-22 21:14:02 +0200
commitd6e7672545c717497490c0b0f54f64594f374f9d (patch)
tree736aa8a2f9264221709b45361939475c8ae83c24 /libbb/xfuncs.c
parent15943c886d6e1929b90db9bc6077c849cbaa187e (diff)
downloadbusybox-d6e7672545c717497490c0b0f54f64594f374f9d.zip
busybox-d6e7672545c717497490c0b0f54f64594f374f9d.tar.gz
less: move "retry-on-EAGAIN" logic closer to read ops
This makes "G" (goto end of input) command work as well as /search_for_nonexistent_string: both will read to EOF now even from somewhat slow input (such as kernel's "git log"). function old new delta ndelay_on 35 43 +8 ndelay_off 35 43 +8 read_lines 695 691 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 16/-4) Total: 12 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/xfuncs.c')
-rw-r--r--libbb/xfuncs.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 23f2751..f25ce94 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -25,20 +25,22 @@
#include "libbb.h"
/* Turn on nonblocking I/O on a fd */
-void FAST_FUNC ndelay_on(int fd)
+int FAST_FUNC ndelay_on(int fd)
{
int flags = fcntl(fd, F_GETFL);
if (flags & O_NONBLOCK)
- return;
+ return flags;
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+ return flags;
}
-void FAST_FUNC ndelay_off(int fd)
+int FAST_FUNC ndelay_off(int fd)
{
int flags = fcntl(fd, F_GETFL);
if (!(flags & O_NONBLOCK))
- return;
+ return flags;
fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
+ return flags;
}
void FAST_FUNC close_on_exec_on(int fd)