From 3e0b077ec236aa26bfeb290f3cd7973ec3fbcb7d Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sun, 21 Oct 2018 13:05:22 -0500
Subject: Move start_redraw() to lib/ and have ps.c (top) use it.

---
 lib/interestingtimes.c | 17 +++++++++++++++++
 lib/lib.h              |  1 +
 toys/pending/watch.c   | 17 -----------------
 toys/posix/ps.c        |  7 +------
 4 files changed, 19 insertions(+), 23 deletions(-)

diff --git a/lib/interestingtimes.c b/lib/interestingtimes.c
index c3ed9f9a..9cf84041 100644
--- a/lib/interestingtimes.c
+++ b/lib/interestingtimes.c
@@ -258,3 +258,20 @@ void tty_sigreset(int i)
   tty_reset();
   _exit(i ? 128+i : 0);
 }
+
+void start_redraw(unsigned *width, unsigned *height)
+{
+  // If never signaled, do raw mode setup.
+  if (!toys.signal) {
+    *width = 80;
+    *height = 25;
+    set_terminal(0, 1, 0, 0);
+    sigatexit(tty_sigreset);
+    xsignal(SIGWINCH, generic_signal);
+  }
+  if (toys.signal != -1) {
+    toys.signal = -1;
+    terminal_probesize(width, height);
+  }
+  xprintf("\033[H\033[J");
+}
diff --git a/lib/lib.h b/lib/lib.h
index 136cdab5..98c042c7 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -293,6 +293,7 @@ void tty_esc(char *s);
 void tty_jump(int x, int y);
 void tty_reset(void);
 void tty_sigreset(int i);
+void start_redraw(unsigned *width, unsigned *height);
 
 // net.c
 int xsocket(int domain, int type, int protocol);
diff --git a/toys/pending/watch.c b/toys/pending/watch.c
index f360ac7c..41fb020e 100644
--- a/toys/pending/watch.c
+++ b/toys/pending/watch.c
@@ -32,23 +32,6 @@ GLOBALS(
   pid_t pid, oldpid;
 )
 
-void start_redraw(unsigned *width, unsigned *height)
-{
-  // If never signaled, do raw mode setup.
-  if (!toys.signal) {
-    *width = 80;
-    *height = 25;
-    set_terminal(0, 1, 0, 0);
-    sigatexit(tty_sigreset);
-    xsignal(SIGWINCH, generic_signal);
-  }
-  if (toys.signal != -1) {
-    toys.signal = -1;
-    terminal_probesize(width, height);
-  }
-  xprintf("\033[H\033[J");
-}
-
 // When a child process exits, stop tracking them. Handle errors for -be
 void watch_child(int sig)
 {
diff --git a/toys/posix/ps.c b/toys/posix/ps.c
index 27dc63c5..d8f54862 100644
--- a/toys/posix/ps.c
+++ b/toys/posix/ps.c
@@ -1709,12 +1709,7 @@ static void top_setup(char *defo, char *defk)
     // Grab starting time, make terminal raw, switch off cursor,
     // set signal handler to put terminal/cursor back to normal at exit.
     TT.time = millitime();
-    set_terminal(0, 1, 0, 0);
-    sigatexit(tty_sigreset);
-    xsignal(SIGWINCH, generic_signal);
-    printf("\033[?25l\033[0m");
-    TT.width = 80;
-    TT.height = 25;
+    start_redraw(&TT.width, &TT.height);
   }
 
   comma_args(TT.top.u, &TT.uu, "bad -u", parse_rest);
-- 
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