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Clarify difference between in_sighandler and handling_signal.

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Jan Djärv 2006-08-21 12:54:47 +00:00
parent 28cb9364d7
commit 922fd3cb7b
1 changed files with 6 additions and 1 deletions
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7
src/keyboard.c
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@ -100,7 +100,12 @@ int interrupt_input_pending;
/* File descriptor to use for input. */
extern int input_fd;
/* Nonzero if we are executing from the SIGIO signal handler. */
/* Nonzero if we are executing from the SIGIO signal handler.
The difference between in_sighandler and handling_signal is that
in_sighandler is only set when executing in a signal handler.
handling_signal may be set even if not executing in a signal handler, for
example when reinvoke_input_signal is called from UNBLOCK_INPUT, or
when Emacs is compiled with SYNC_INPUT defined. */
int in_sighandler;
#ifdef HAVE_WINDOW_SYSTEM