X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/876e5d5e627d117190851e41c0fb3d2d08cac70d..7bd029472d96162f71f61df67baedc00fc0bb1a8:/terminal.h

diff --git a/terminal.h b/terminal.h
index d969ecc9..0050c0e2 100644
--- a/terminal.h
+++ b/terminal.h
@@ -37,6 +37,8 @@ struct terminal_tag {
     tree234 *screen;		       /* lines on primary screen */
     tree234 *alt_screen;	       /* lines on alternate screen */
     int disptop;		       /* distance scrolled back (0 or -ve) */
+    int tempsblines;		       /* number of lines in temporary
+					  scrollback */
 
     unsigned long *cpos;	       /* cursor position (convenience) */
 
@@ -51,7 +53,8 @@ struct terminal_tag {
     int beep_overloaded;
     long lastbeep;
 
-#define TSIZE (sizeof(unsigned long))
+#define TTYPE unsigned long
+#define TSIZE (sizeof(TTYPE))
 #define fix_cpos do { \
     term->cpos = lineptr(term->curs.y) + term->curs.x; \
 } while(0)
@@ -195,6 +198,16 @@ struct terminal_tag {
      * than only the default.
      */
     Config cfg;
+
+    /*
+     * from_backend calls term_out, but it can also be called from
+     * the ldisc if the ldisc is called _within_ term_out. So we
+     * have to guard against re-entrancy - if from_backend is
+     * called recursively like this, it will simply add data to the
+     * end of the buffer term_out is in the process of working
+     * through.
+     */
+    int in_term_out;
 };
 
 #define in_utf(term) ((term)->utf || (term)->ucsdata->line_codepage==CP_UTF8)