perf tools: Move get_term_dimensions from top to util.c
[linux-3.10.git] / tools / perf / util / util.c
index 252b889..805d1f5 100644 (file)
@@ -220,3 +220,25 @@ void dump_stack(void)
 #else
 void dump_stack(void) {}
 #endif
+
+void get_term_dimensions(struct winsize *ws)
+{
+       char *s = getenv("LINES");
+
+       if (s != NULL) {
+               ws->ws_row = atoi(s);
+               s = getenv("COLUMNS");
+               if (s != NULL) {
+                       ws->ws_col = atoi(s);
+                       if (ws->ws_row && ws->ws_col)
+                               return;
+               }
+       }
+#ifdef TIOCGWINSZ
+       if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
+           ws->ws_row && ws->ws_col)
+               return;
+#endif
+       ws->ws_row = 25;
+       ws->ws_col = 80;
+}