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8.33

    1: /*************************************************
    2: *      Perl-Compatible Regular Expressions       *
    3: *************************************************/
    4: 
    5: /* PCRE is a library of functions to support regular expressions whose syntax
    6: and semantics are as close as possible to those of the Perl 5 language.
    7: 
    8:                        Written by Philip Hazel
    9:            Copyright (c) 1997-2012 University of Cambridge
   10: 
   11: -----------------------------------------------------------------------------
   12: Redistribution and use in source and binary forms, with or without
   13: modification, are permitted provided that the following conditions are met:
   14: 
   15:     * Redistributions of source code must retain the above copyright notice,
   16:       this list of conditions and the following disclaimer.
   17: 
   18:     * Redistributions in binary form must reproduce the above copyright
   19:       notice, this list of conditions and the following disclaimer in the
   20:       documentation and/or other materials provided with the distribution.
   21: 
   22:     * Neither the name of the University of Cambridge nor the names of its
   23:       contributors may be used to endorse or promote products derived from
   24:       this software without specific prior written permission.
   25: 
   26: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   27: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   28: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   29: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   30: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36: POSSIBILITY OF SUCH DAMAGE.
   37: -----------------------------------------------------------------------------
   38: */
   39: 
   40: 
   41: /* This module contains global variables that are exported by the PCRE library.
   42: PCRE is thread-clean and doesn't use any global variables in the normal sense.
   43: However, it calls memory allocation and freeing functions via the four
   44: indirections below, and it can optionally do callouts, using the fifth
   45: indirection. These values can be changed by the caller, but are shared between
   46: all threads.
   47: 
   48: For MS Visual Studio and Symbian OS, there are problems in initializing these
   49: variables to non-local functions. In these cases, therefore, an indirection via
   50: a local function is used.
   51: 
   52: Also, when compiling for Virtual Pascal, things are done differently, and
   53: global variables are not used. */
   54: 
   55: #ifdef HAVE_CONFIG_H
   56: #include "config.h"
   57: #endif
   58: 
   59: #include "pcre_internal.h"
   60: 
   61: #if defined _MSC_VER || defined  __SYMBIAN32__
   62: static void* LocalPcreMalloc(size_t aSize)
   63:   {
   64:   return malloc(aSize);
   65:   }
   66: static void LocalPcreFree(void* aPtr)
   67:   {
   68:   free(aPtr);
   69:   }
   70: PCRE_EXP_DATA_DEFN void *(*PUBL(malloc))(size_t) = LocalPcreMalloc;
   71: PCRE_EXP_DATA_DEFN void  (*PUBL(free))(void *) = LocalPcreFree;
   72: PCRE_EXP_DATA_DEFN void *(*PUBL(stack_malloc))(size_t) = LocalPcreMalloc;
   73: PCRE_EXP_DATA_DEFN void  (*PUBL(stack_free))(void *) = LocalPcreFree;
   74: PCRE_EXP_DATA_DEFN int   (*PUBL(callout))(PUBL(callout_block) *) = NULL;
   75: 
   76: #elif !defined VPCOMPAT
   77: PCRE_EXP_DATA_DEFN void *(*PUBL(malloc))(size_t) = malloc;
   78: PCRE_EXP_DATA_DEFN void  (*PUBL(free))(void *) = free;
   79: PCRE_EXP_DATA_DEFN void *(*PUBL(stack_malloc))(size_t) = malloc;
   80: PCRE_EXP_DATA_DEFN void  (*PUBL(stack_free))(void *) = free;
   81: PCRE_EXP_DATA_DEFN int   (*PUBL(callout))(PUBL(callout_block) *) = NULL;
   82: #endif
   83: 
   84: /* End of pcre_globals.c */