Move start_redraw() to lib/ and have ps.c (top) use it.

2 files changed, 18 insertions, 0 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);