[SIGIO] (UNBLOCK_INPUT): Resignal if x_pending_input.

63e1efd4 · Richard M. Stallman · 48c9d487 · 63e1efd4
Commit 63e1efd4 authored Mar 16, 1993 by Richard M. Stallman
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src/xterm.h src/xterm.h +8 -0

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--- a/src/xterm.h
+++ b/src/xterm.h
@@ -180,8 +180,16 @@ extern int x_pending_input;
 #define BLOCK_INPUT (x_input_blocked++)

 /* End critical section. */
+#ifdef SIGIO
+/* If doing interrupt input, and an interrupt came in when input was blocked,
+   reinvoke the interrupt handler now to deal with it.  */
+#define UNBLOCK_INPUT \
+  ((x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0)),	\
+   (x_input_blocked == 0 && x_pending_input != 0 ? (kill (0, SIGIO), 0) : 0))
+#else
 #define UNBLOCK_INPUT \
  (x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0))
+#endif

 #define TOTALLY_UNBLOCK_INPUT (x_input_blocked = 0)
 #define UNBLOCK_INPUT_RESIGNAL UNBLOCK_INPUT