Mercurial > hg > octave-lojdl > gnulib-hg
changeset 238:761dc74b75b4
Be less eager to define MATCH_MAY_ALLOCATE.
author | Richard Stallman <rms@gnu.org> |
---|---|
date | Tue, 05 Jul 1994 07:25:05 +0000 |
parents | cb57480dbf0a |
children | 1a287047bd80 |
files | regex.c |
diffstat | 1 files changed, 5 insertions(+), 4 deletions(-) [+] |
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--- a/regex.c +++ b/regex.c @@ -898,8 +898,8 @@ ralloc heap) shift the data out from underneath the regexp routines. - Here's another reason to avoid allocation: Emacs insists on - processing input from X in a signal handler; processing X input may + Here's another reason to avoid allocation: Emacs + processes input from X in a signal handler; processing X input may call malloc; if input arrives while a matching routine is calling malloc, then we're scrod. But Emacs can't just block input while calling matching routines; then we don't notice interrupts when @@ -910,8 +910,9 @@ /* Normally, this is fine. */ #define MATCH_MAY_ALLOCATE -/* But under some circumstances, it's not. */ -#if defined (emacs) || (defined (REL_ALLOC) && defined (C_ALLOCA)) +/* The match routines may not allocate if (1) they would do it with malloc + and (2) it's not safe for htem to use malloc. */ +#if (defined (C_ALLOCA) || defined (REGEX_MALLOC)) && (defined (emacs) || defined (REL_ALLOC)) #undef MATCH_MAY_ALLOCATE #endif