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Diffstat (limited to 'contrib/gperf/src/xmalloc.c')
-rw-r--r-- | contrib/gperf/src/xmalloc.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/contrib/gperf/src/xmalloc.c b/contrib/gperf/src/xmalloc.c deleted file mode 100644 index 09cc022..0000000 --- a/contrib/gperf/src/xmalloc.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Provide a useful malloc sanity checker and an efficient buffered memory - allocator that reduces calls to malloc. - Copyright (C) 1989 Free Software Foundation, Inc. - written by Douglas C. Schmidt (schmidt@ics.uci.edu) - -This file is part of GNU GPERF. - -GNU GPERF is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 1, or (at your option) -any later version. - -GNU GPERF is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU GPERF; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> - -/* Grabs SIZE bytes of dynamic memory or dies trying! */ - -char * -xmalloc (size) - int size; -{ - char *malloc (); - char *temp = malloc (size); - - if (temp == 0) - { - fprintf (stderr, "out of virtual memory\n"); - exit (1); - } - return temp; -} - -/* Determine default alignment. If your C compiler does not - like this then try something like #define DEFAULT_ALIGNMENT 8. */ -struct fooalign {char x; double d;}; -#define ALIGNMENT ((char *)&((struct fooalign *) 0)->d - (char *)0) - -/* Provide an abstraction that cuts down on the number of - calls to MALLOC by buffering the memory pool from which - items are allocated. */ - -char * -buffered_malloc (size) - int size; -{ - char *temp; - static char *buf_start = 0; /* Large array used to reduce calls to NEW. */ - static char *buf_end = 0; /* Indicates end of BUF_START. */ - static int buf_size = 4 * BUFSIZ; /* Size of buffer pointed to by BUF_START. */ - - /* Align this on correct boundaries, just to be safe... */ - size = ((size + ALIGNMENT - 1) / ALIGNMENT) * ALIGNMENT; - - /* If we are about to overflow our buffer we'll just grab another - chunk of memory. Since we never free the original memory it - doesn't matter that no one points to the beginning of that - chunk. Furthermore, as a heuristic, we double the - size of the new buffer! */ - - if (buf_start + size >= buf_end) - { - buf_size = buf_size * 2 > size ? buf_size * 2 : size; - buf_start = xmalloc (buf_size); - buf_end = buf_start + buf_size; - } - - temp = buf_start; - buf_start += size; - return temp; -} |