From 4a13ca98e18cea4acc8d605653d0ee8425e34f59 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Thu, 28 Jan 2016 22:10:06 -0600
Subject: Add SIGWINCH support to top, and implement -o and -n in pgrep/pkill.

---
 lib/interestingtimes.c | 15 ++++++++++-----
 lib/net.c              |  1 +
 2 files changed, 11 insertions(+), 5 deletions(-)

(limited to 'lib')

diff --git a/lib/interestingtimes.c b/lib/interestingtimes.c
index 93e2ec52..c4ea2c27 100644
--- a/lib/interestingtimes.c
+++ b/lib/interestingtimes.c
@@ -67,10 +67,14 @@ int scan_key_getsize(char *scratch, int miliwait, unsigned *xx, unsigned *yy)
 {
   int key;
 
-  while (512&(key = scan_key(scratch, miliwait))) {
-    if (key<0) break;
-    if (xx) *xx = (key>>10)&1023;
-    if (yy) *yy = (key>>20)&1023;
+  if (512&(key = scan_key(scratch, miliwait))) {
+    if (key>0) {
+      if (xx) *xx = (key>>10)&1023;
+      if (yy) *yy = (key>>20)&1023;
+      toys.signal = SIGWINCH;
+
+      return -3;
+    }
   }
 
   return key;
@@ -195,7 +199,8 @@ int scan_key(char *scratch, int miliwait)
 
     // Read 1 byte so we don't overshoot sequence match. (We can deviate
     // and fail to match, but match consumes entire buffer.)
-    if (1 != read(0, scratch+1+*scratch, 1)) return -1;
+    if (toys.signal || 1 != read(0, scratch+1+*scratch, 1))
+      return toys.signal ? -3 : -1;
     ++*scratch;
   }
 
diff --git a/lib/net.c b/lib/net.c
index facb0968..2e72b268 100644
--- a/lib/net.c
+++ b/lib/net.c
@@ -49,6 +49,7 @@ int xpoll(struct pollfd *fds, int nfds, int timeout)
 
   for (;;) {
     if (0>(i = poll(fds, nfds, timeout))) {
+      if (toys.signal) return i;
       if (errno != EINTR && errno != ENOMEM) perror_exit("xpoll");
       else if (timeout>0) timeout--;
     } else return i;
-- 
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