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Diffstat (limited to 'plugins/!NotAdopted/VypressChat/contrib/memwatch.h')
| -rw-r--r-- | plugins/!NotAdopted/VypressChat/contrib/memwatch.h | 707 |
1 files changed, 707 insertions, 0 deletions
diff --git a/plugins/!NotAdopted/VypressChat/contrib/memwatch.h b/plugins/!NotAdopted/VypressChat/contrib/memwatch.h new file mode 100644 index 0000000000..c60d31b7e8 --- /dev/null +++ b/plugins/!NotAdopted/VypressChat/contrib/memwatch.h @@ -0,0 +1,707 @@ +/*
+** MEMWATCH.H
+** Nonintrusive ANSI C memory leak / overwrite detection
+** Copyright (C) 1992-2002 Johan Lindh
+** All rights reserved.
+** Version 2.71
+**
+************************************************************************
+**
+** PURPOSE:
+**
+** MEMWATCH has been written to allow guys and gals that like to
+** program in C a public-domain memory error control product.
+** I hope you'll find it's as advanced as most commercial packages.
+** The idea is that you use it during the development phase and
+** then remove the MEMWATCH define to produce your final product.
+** MEMWATCH is distributed in source code form in order to allow
+** you to compile it for your platform with your own compiler.
+** It's aim is to be 100% ANSI C, but some compilers are more stingy
+** than others. If it doesn't compile without warnings, please mail
+** me the configuration of operating system and compiler you are using
+** along with a description of how to modify the source, and the version
+** number of MEMWATCH that you are using.
+**
+************************************************************************
+
+ This file is part of MEMWATCH.
+
+ MEMWATCH 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 2 of the License, or
+ (at your option) any later version.
+
+ MEMWATCH 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 MEMWATCH; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+************************************************************************
+**
+** REVISION HISTORY:
+**
+** 920810 JLI [1.00]
+** 920830 JLI [1.10 double-free detection]
+** 920912 JLI [1.15 mwPuts, mwGrab/Drop, mwLimit]
+** 921022 JLI [1.20 ASSERT and VERIFY]
+** 921105 JLI [1.30 C++ support and TRACE]
+** 921116 JLI [1.40 mwSetOutFunc]
+** 930215 JLI [1.50 modified ASSERT/VERIFY]
+** 930327 JLI [1.51 better auto-init & PC-lint support]
+** 930506 JLI [1.55 MemWatch class, improved C++ support]
+** 930507 JLI [1.60 mwTest & CHECK()]
+** 930809 JLI [1.65 Abort/Retry/Ignore]
+** 930820 JLI [1.70 data dump when unfreed]
+** 931016 JLI [1.72 modified C++ new/delete handling]
+** 931108 JLI [1.77 mwSetAssertAction() & some small changes]
+** 940110 JLI [1.80 no-mans-land alloc/checking]
+** 940328 JLI [2.00 version 2.0 rewrite]
+** Improved NML (no-mans-land) support.
+** Improved performance (especially for free()ing!).
+** Support for 'read-only' buffers (checksums)
+** ^^ NOTE: I never did this... maybe I should?
+** FBI (free'd block info) tagged before freed blocks
+** Exporting of the mwCounter variable
+** mwBreakOut() localizes debugger support
+** Allocation statistics (global, per-module, per-line)
+** Self-repair ability with relinking
+** 950913 JLI [2.10 improved garbage handling]
+** 951201 JLI [2.11 improved auto-free in emergencies]
+** 960125 JLI [X.01 implemented auto-checking using mwAutoCheck()]
+** 960514 JLI [2.12 undefining of existing macros]
+** 960515 JLI [2.13 possibility to use default new() & delete()]
+** 960516 JLI [2.20 suppression of file flushing on unfreed msgs]
+** 960516 JLI [2.21 better support for using MEMWATCH with DLL's]
+** 960710 JLI [X.02 multiple logs and mwFlushNow()]
+** 960801 JLI [2.22 merged X.01 version with current]
+** 960805 JLI [2.30 mwIsXXXXAddr() to avoid unneeded GP's]
+** 960805 JLI [2.31 merged X.02 version with current]
+** 961002 JLI [2.32 support for realloc() + fixed STDERR bug]
+** 961222 JLI [2.40 added mwMark() & mwUnmark()]
+** 970101 JLI [2.41 added over/underflow checking after failed ASSERT/VERIFY]
+** 970113 JLI [2.42 added support for PC-Lint 7.00g]
+** 970207 JLI [2.43 added support for strdup()]
+** 970209 JLI [2.44 changed default filename to lowercase]
+** 970405 JLI [2.45 fixed bug related with atexit() and some C++ compilers]
+** 970723 JLI [2.46 added MW_ARI_NULLREAD flag]
+** 970813 JLI [2.47 stabilized marker handling]
+** 980317 JLI [2.48 ripped out C++ support; wasn't working good anyway]
+** 980318 JLI [2.50 improved self-repair facilities & SIGSEGV support]
+** 980417 JLI [2.51 more checks for invalid addresses]
+** 980512 JLI [2.52 moved MW_ARI_NULLREAD to occur before aborting]
+** 990112 JLI [2.53 added check for empty heap to mwIsOwned]
+** 990217 JLI [2.55 improved the emergency repairs diagnostics and NML]
+** 990224 JLI [2.56 changed ordering of members in structures]
+** 990303 JLI [2.57 first maybe-fixit-for-hpux test]
+** 990516 JLI [2.58 added 'static' to the definition of mwAutoInit]
+** 990517 JLI [2.59 fixed some high-sensitivity warnings]
+** 990610 JLI [2.60 fixed some more high-sensitivity warnings]
+** 990715 JLI [2.61 changed TRACE/ASSERT/VERIFY macro names]
+** 991001 JLI [2.62 added CHECK_BUFFER() and mwTestBuffer()]
+** 991007 JLI [2.63 first shot at a 64-bit compatible version]
+** 991009 JLI [2.64 undef's strdup() if defined, mwStrdup made const]
+** 000704 JLI [2.65 added some more detection for 64-bits]
+** 010502 JLI [2.66 incorporated some user fixes]
+** [mwRelink() could print out garbage pointer (thanks mac@phobos.ca)]
+** [added array destructor for C++ (thanks rdasilva@connecttel.com)]
+** [added mutex support (thanks rdasilva@connecttel.com)]
+** 010531 JLI [2.67 fix: mwMutexXXX() was declared even if MW_HAVE_MUTEX was not defined]
+** 010619 JLI [2.68 fix: mwRealloc() could leave the mutex locked]
+** 020918 JLI [2.69 changed to GPL, added C++ array allocation by Howard Cohen]
+** 030212 JLI [2.70 mwMalloc() bug for very large allocations (4GB on 32bits)]
+** 030520 JLI [2.71 added ULONG_LONG_MAX as a 64-bit detector (thanks Sami Salonen)]
+**
+** To use, simply include 'MEMWATCH.H' as a header file,
+** and add MEMWATCH.C to your list of files, and define the macro
+** 'MEMWATCH'. If this is not defined, MEMWATCH will disable itself.
+**
+** To call the standard C malloc / realloc / calloc / free; use mwMalloc_(),
+** mwCalloc_() and mwFree_(). Note that mwFree_() will correctly
+** free both malloc()'d memory as well as mwMalloc()'d.
+**
+** 980317: C++ support has been disabled.
+** The code remains, but is not compiled.
+**
+** For use with C++, which allows use of inlining in header files
+** and class specific new/delete, you must also define 'new' as
+** 'mwNew' and 'delete' as 'mwDelete'. Do this *after* you include
+** C++ header files from libraries, otherwise you can mess up their
+** class definitions. If you don't define these, the C++ allocations
+** will not have source file and line number information. Also note,
+** most C++ class libraries implement their own C++ memory management,
+** and don't allow anyone to override them. MFC belongs to this crew.
+** In these cases, the only thing to do is to use MEMWATCH_NOCPP.
+**
+** You can capture output from MEMWATCH using mwSetOutFunc().
+** Just give it the adress of a "void myOutFunc(int c)" function,
+** and all characters to be output will be redirected there.
+**
+** A failing ASSERT() or VERIFY() will normally always abort your
+** program. This can be changed using mwSetAriFunc(). Give it a
+** pointer to a "int myAriFunc(const char *)" function. Your function
+** must ask the user whether to Abort, Retry or Ignore the trap.
+** Return 2 to Abort, 1 to Retry or 0 to Ignore. Beware retry; it
+** causes the expression to be evaluated again! MEMWATCH has a
+** default ARI handler. It's disabled by default, but you can enable
+** it by calling 'mwDefaultAri()'. Note that this will STILL abort
+** your program unless you define MEMWATCH_STDIO to allow MEMWATCH
+** to use the standard C I/O streams. Also, setting the ARI function
+** will cause MEMWATCH *NOT* to write the ARI error to stderr. The
+** error string is passed to the ARI function instead, as the
+** 'const char *' parameter.
+**
+** You can disable MEMWATCH's ASSERT/VERIFY and/or TRACE implementations.
+** This can be useful if you're using a debug terminal or smart debugger.
+** Disable them by defining MW_NOASSERT, MW_NOVERIFY or MW_NOTRACE.
+**
+** MEMWATCH fills all allocated memory with the byte 0xFE, so if
+** you're looking at erroneous data which are all 0xFE:s, the
+** data probably was not initialized by you. The exception is
+** calloc(), which will fill with zero's. All freed buffers are
+** zapped with 0xFD. If this is what you look at, you're using
+** data that has been freed. If this is the case, be aware that
+** MEMWATCH places a 'free'd block info' structure immediately
+** before the freed data. This block contains info about where
+** the block was freed. The information is in readable text,
+** in the format "FBI<counter>filename(line)", for example:
+** "FBI<267>test.c(12)". Using FBI's slows down free(), so it's
+** disabled by default. Use mwFreeBufferInfo(1) to enable it.
+**
+** To aid in tracking down wild pointer writes, MEMWATCH can perform
+** no-mans-land allocations. No-mans-land will contain the byte 0xFC.
+** MEMWATCH will, when this is enabled, convert recently free'd memory
+** into NML allocations.
+**
+** MEMWATCH protects it's own data buffers with checksums. If you
+** get an internal error, it means you're overwriting wildly,
+** or using an uninitialized pointer.
+**
+************************************************************************
+**
+** Note when compiling with Microsoft C:
+** - MSC ignores fflush() by default. This is overridden, so that
+** the disk log will always be current.
+**
+** This utility has been tested with:
+** PC-lint 7.0k, passed as 100% ANSI C compatible
+** Microsoft Visual C++ on Win16 and Win32
+** Microsoft C on DOS
+** SAS C on an Amiga 500
+** Gnu C on a PC running Red Hat Linux
+** ...and using an (to me) unknown compiler on an Atari machine.
+**
+************************************************************************
+**
+** Format of error messages in MEMWATCH.LOG:
+** message: <sequence-number> filename(linenumber), information
+**
+** Errors caught by MemWatch, when they are detected, and any
+** actions taken besides writing to the log file MEMWATCH.LOG:
+**
+** Double-freeing:
+** A pointer that was recently freed and has not since been
+** reused was freed again. The place where the previous free()
+** was executed is displayed.
+** Detect: delete or free() using the offending pointer.
+** Action: The delete or free() is cancelled, execution continues.
+** Underflow:
+** You have written just ahead of the allocated memory.
+** The size and place of the allocation is displayed.
+** Detect: delete or free() of the damaged buffer.
+** Action: The buffer is freed, but there may be secondary damage.
+** Overflow:
+** Like underflow, but you've written after the end of the buffer.
+** Detect: see Underflow.
+** Action: see Underflow.
+** WILD free:
+** An unrecognized pointer was passed to delete or free().
+** The pointer may have been returned from a library function;
+** in that case, use mwFree_() to force free() of it.
+** Also, this may be a double-free, but the previous free was
+** too long ago, causing MEMWATCH to 'forget' it.
+** Detect: delete or free() of the offending pointer.
+** Action: The delete or free() is cancelled, execution continues.
+** NULL free:
+** It's unclear to me whether or not freeing of NULL pointers
+** is legal in ANSI C, therefore a warning is written to the log file,
+** but the error counter remains the same. This is legal using C++,
+** so the warning does not appear with delete.
+** Detect: When you free(NULL).
+** Action: The free() is cancelled.
+** Failed:
+** A request to allocate memory failed. If the allocation is
+** small, this may be due to memory depletion, but is more likely
+** to be memory fragmentation problems. The amount of memory
+** allocated so far is displayed also.
+** Detect: When you new, malloc(), realloc() or calloc() memory.
+** Action: NULL is returned.
+** Realloc:
+** A request to re-allocate a memory buffer failed for reasons
+** other than out-of-memory. The specific reason is shown.
+** Detect: When you realloc()
+** Action: realloc() is cancelled, NULL is returned
+** Limit fail:
+** A request to allocate memory failed since it would violate
+** the limit set using mwLimit(). mwLimit() is used to stress-test
+** your code under simulated low memory conditions.
+** Detect: At new, malloc(), realloc() or calloc().
+** Action: NULL is returned.
+** Assert trap:
+** An ASSERT() failed. The ASSERT() macro works like C's assert()
+** macro/function, except that it's interactive. See your C manual.
+** Detect: On the ASSERT().
+** Action: Program ends with an advisory message to stderr, OR
+** Program writes the ASSERT to the log and continues, OR
+** Program asks Abort/Retry/Ignore? and takes that action.
+** Verify trap:
+** A VERIFY() failed. The VERIFY() macro works like ASSERT(),
+** but if MEMWATCH is not defined, it still evaluates the
+** expression, but it does not act upon the result.
+** Detect: On the VERIFY().
+** Action: Program ends with an advisory message to stderr, OR
+** Program writes the VERIFY to the log and continues, OR
+** Program asks Abort/Retry/Ignore? and takes that action.
+** Wild pointer:
+** A no-mans-land buffer has been written into. MEMWATCH can
+** allocate and distribute chunks of memory solely for the
+** purpose of trying to catch random writes into memory.
+** Detect: Always on CHECK(), but can be detected in several places.
+** Action: The error is logged, and if an ARI handler is installed,
+** it is executed, otherwise, execution continues.
+** Unfreed:
+** A memory buffer you allocated has not been freed.
+** You are informed where it was allocated, and whether any
+** over or underflow has occured. MemWatch also displays up to
+** 16 bytes of the data, as much as it can, in hex and text.
+** Detect: When MemWatch terminates.
+** Action: The buffer is freed.
+** Check:
+** An error was detected during a CHECK() operation.
+** The associated pointer is displayed along with
+** the file and line where the CHECK() was executed.
+** Followed immediately by a normal error message.
+** Detect: When you CHECK()
+** Action: Depends on the error
+** Relink:
+** After a MEMWATCH internal control block has been trashed,
+** MEMWATCH tries to repair the damage. If successful, program
+** execution will continue instead of aborting. Some information
+** about the block may be gone permanently, though.
+** Detect: N/A
+** Action: Relink successful: program continues.
+** Relink fails: program aborts.
+** Internal:
+** An internal error is flagged by MEMWATCH when it's control
+** structures have been damaged. You are likely using an uninitialized
+** pointer somewhere in your program, or are zapping memory all over.
+** The message may give you additional diagnostic information.
+** If possible, MEMWATCH will recover and continue execution.
+** Detect: Various actions.
+** Action: Whatever is needed
+** Mark:
+** The program terminated without umarking all marked pointers. Marking
+** can be used to track resources other than memory. mwMark(pointer,text,...)
+** when the resource is allocated, and mwUnmark(pointer) when it's freed.
+** The 'text' is displayed for still marked pointers when the program
+** ends.
+** Detect: When MemWatch terminates.
+** Action: The error is logged.
+**
+**
+************************************************************************
+**
+** The author may be reached by e-mail at the address below. If you
+** mail me about source code changes in MEMWATCH, remember to include
+** MW's version number.
+**
+** Johan Lindh
+** johan@linkdata.se
+**
+** The latest version of MEMWATCH may be downloaded from
+** http://www.linkdata.se/
+*/
+
+#ifndef __MEMWATCH_H
+#define __MEMWATCH_H
+
+/* Make sure that malloc(), realloc(), calloc() and free() are declared. */
+/*lint -save -e537 */
+#include <stdlib.h>
+/*lint -restore */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+** Constants used
+** All MEMWATCH constants start with the prefix MW_, followed by
+** a short mnemonic which indicates where the constant is used,
+** followed by a descriptive text about it.
+*/
+
+#define MW_ARI_NULLREAD 0x10 /* Null read (to start debugger) */
+#define MW_ARI_ABORT 0x04 /* ARI handler says: abort program! */
+#define MW_ARI_RETRY 0x02 /* ARI handler says: retry action! */
+#define MW_ARI_IGNORE 0x01 /* ARI handler says: ignore error! */
+
+#define MW_VAL_NEW 0xFE /* value in newly allocated memory */
+#define MW_VAL_DEL 0xFD /* value in newly deleted memory */
+#define MW_VAL_NML 0xFC /* value in no-mans-land */
+#define MW_VAL_GRB 0xFB /* value in grabbed memory */
+
+#define MW_TEST_ALL 0xFFFF /* perform all tests */
+#define MW_TEST_CHAIN 0x0001 /* walk the heap chain */
+#define MW_TEST_ALLOC 0x0002 /* test allocations & NML guards */
+#define MW_TEST_NML 0x0004 /* test all-NML areas for modifications */
+
+#define MW_NML_NONE 0 /* no NML */
+#define MW_NML_FREE 1 /* turn FREE'd memory into NML */
+#define MW_NML_ALL 2 /* all unused memory is NML */
+#define MW_NML_DEFAULT 0 /* the default NML setting */
+
+#define MW_STAT_GLOBAL 0 /* only global statistics collected */
+#define MW_STAT_MODULE 1 /* collect statistics on a module basis */
+#define MW_STAT_LINE 2 /* collect statistics on a line basis */
+#define MW_STAT_DEFAULT 0 /* the default statistics setting */
+
+/*
+** MemWatch internal constants
+** You may change these and recompile MemWatch to change the limits
+** of some parameters. Respect the recommended minimums!
+*/
+#define MW_TRACE_BUFFER 2048 /* (min 160) size of TRACE()'s output buffer */
+#define MW_FREE_LIST 64 /* (min 4) number of free()'s to track */
+
+/*
+** Exported variables
+** In case you have to remove the 'const' keyword because your compiler
+** doesn't support it, be aware that changing the values may cause
+** unpredictable behaviour.
+** - mwCounter contains the current action count. You can use this to
+** place breakpoints using a debugger, if you want.
+*/
+#ifndef __MEMWATCH_C
+extern const unsigned long mwCounter;
+#endif
+
+/*
+** System functions
+** Normally, it is not nessecary to call any of these. MEMWATCH will
+** automatically initialize itself on the first MEMWATCH function call,
+** and set up a call to mwAbort() using atexit(). Some C++ implementations
+** run the atexit() chain before the program has terminated, so you
+** may have to use mwInit() or the MemWatch C++ class to get good
+** behaviour.
+** - mwInit() can be called to disable the atexit() usage. If mwInit()
+** is called directly, you must call mwTerm() to end MemWatch, or
+** mwAbort().
+** - mwTerm() is usually not nessecary to call; but if called, it will
+** call mwAbort() if it finds that it is cancelling the 'topmost'
+** mwInit() call.
+** - mwAbort() cleans up after MEMWATCH, reports unfreed buffers, etc.
+*/
+void mwInit( void );
+void mwTerm( void );
+void mwAbort( void );
+
+/*
+** Setup functions
+** These functions control the operation of MEMWATCH's protective features.
+** - mwFlushNow() causes MEMWATCH to flush it's buffers.
+** - mwDoFlush() controls whether MEMWATCH flushes the disk buffers after
+** writes. The default is smart flushing: MEMWATCH will not flush buffers
+** explicitly until memory errors are detected. Then, all writes are
+** flushed until program end or mwDoFlush(0) is called.
+** - mwLimit() sets the allocation limit, an arbitrary limit on how much
+** memory your program may allocate in bytes. Used to stress-test app.
+** Also, in virtual-memory or multitasking environs, puts a limit on
+** how much MW_NML_ALL can eat up.
+** - mwGrab() grabs up X kilobytes of memory. Allocates actual memory,
+** can be used to stress test app & OS both.
+** - mwDrop() drops X kilobytes of grabbed memory.
+** - mwNoMansLand() sets the behaviour of the NML logic. See the
+** MW_NML_xxx for more information. The default is MW_NML_DEFAULT.
+** - mwStatistics() sets the behaviour of the statistics collector. See
+** the MW_STAT_xxx defines for more information. Default MW_STAT_DEFAULT.
+** - mwFreeBufferInfo() enables or disables the tagging of free'd buffers
+** with freeing information. This information is written in text form,
+** using sprintf(), so it's pretty slow. Disabled by default.
+** - mwAutoCheck() performs a CHECK() operation whenever a MemWatch function
+** is used. Slows down performance, of course.
+** - mwCalcCheck() calculates checksums for all data buffers. Slow!
+** - mwDumpCheck() logs buffers where stored & calc'd checksums differ. Slow!!
+** - mwMark() sets a generic marker. Returns the pointer given.
+** - mwUnmark() removes a generic marker. If, at the end of execution, some
+** markers are still in existence, these will be reported as leakage.
+** returns the pointer given.
+*/
+void mwFlushNow( void );
+void mwDoFlush( int onoff );
+void mwLimit( long bytes );
+unsigned mwGrab( unsigned kilobytes );
+unsigned mwDrop( unsigned kilobytes );
+void mwNoMansLand( int mw_nml_level );
+void mwStatistics( int level );
+void mwFreeBufferInfo( int onoff );
+void mwAutoCheck( int onoff );
+void mwCalcCheck( void );
+void mwDumpCheck( void );
+void * mwMark( void *p, const char *description, const char *file, unsigned line );
+void * mwUnmark( void *p, const char *file, unsigned line );
+
+/*
+** Testing/verification/tracing
+** All of these macros except VERIFY() evaluates to a null statement
+** if MEMWATCH is not defined during compilation.
+** - mwIsReadAddr() checks a memory area for read privilige.
+** - mwIsSafeAddr() checks a memory area for both read & write privilige.
+** This function and mwIsReadAddr() is highly system-specific and
+** may not be implemented. If this is the case, they will default
+** to returning nonzero for any non-NULL pointer.
+** - CHECK() does a complete memory integrity test. Slow!
+** - CHECK_THIS() checks only selected components.
+** - CHECK_BUFFER() checks the indicated buffer for errors.
+** - mwASSERT() or ASSERT() If the expression evaluates to nonzero, execution continues.
+** Otherwise, the ARI handler is called, if present. If not present,
+** the default ARI action is taken (set with mwSetAriAction()).
+** ASSERT() can be disabled by defining MW_NOASSERT.
+** - mwVERIFY() or VERIFY() works just like ASSERT(), but when compiling without
+** MEMWATCH the macro evaluates to the expression.
+** VERIFY() can be disabled by defining MW_NOVERIFY.
+** - mwTRACE() or TRACE() writes some text and data to the log. Use like printf().
+** TRACE() can be disabled by defining MW_NOTRACE.
+*/
+int mwIsReadAddr( const void *p, unsigned len );
+int mwIsSafeAddr( void *p, unsigned len );
+int mwTest( const char *file, int line, int mw_test_flags );
+int mwTestBuffer( const char *file, int line, void *p );
+int mwAssert( int, const char*, const char*, int );
+int mwVerify( int, const char*, const char*, int );
+
+/*
+** User I/O functions
+** - mwTrace() works like printf(), but dumps output either to the
+** function specified with mwSetOutFunc(), or the log file.
+** - mwPuts() works like puts(), dumps output like mwTrace().
+** - mwSetOutFunc() allows you to give the adress of a function
+** where all user output will go. (exeption: see mwSetAriFunc)
+** Specifying NULL will direct output to the log file.
+** - mwSetAriFunc() gives MEMWATCH the adress of a function to call
+** when an 'Abort, Retry, Ignore' question is called for. The
+** actual error message is NOT printed when you've set this adress,
+** but instead it is passed as an argument. If you call with NULL
+** for an argument, the ARI handler is disabled again. When the
+** handler is disabled, MEMWATCH will automatically take the
+** action specified by mwSetAriAction().
+** - mwSetAriAction() sets the default ARI return value MEMWATCH should
+** use if no ARI handler is specified. Defaults to MW_ARI_ABORT.
+** - mwAriHandler() is an ANSI ARI handler you can use if you like. It
+** dumps output to stderr, and expects input from stdin.
+** - mwBreakOut() is called in certain cases when MEMWATCH feels it would
+** be nice to break into a debugger. If you feel like MEMWATCH, place
+** an execution breakpoint on this function.
+*/
+void mwTrace( const char* format_string, ... );
+void mwPuts( const char* text );
+void mwSetOutFunc( void (*func)(int) );
+void mwSetAriFunc( int (*func)(const char*) );
+void mwSetAriAction( int mw_ari_value );
+int mwAriHandler( const char* cause );
+void mwBreakOut( const char* cause );
+
+/*
+** Allocation/deallocation functions
+** These functions are the ones actually to perform allocations
+** when running MEMWATCH, for both C and C++ calls.
+** - mwMalloc() debugging allocator
+** - mwMalloc_() always resolves to a clean call of malloc()
+** - mwRealloc() debugging re-allocator
+** - mwRealloc_() always resolves to a clean call of realloc()
+** - mwCalloc() debugging allocator, fills with zeros
+** - mwCalloc_() always resolves to a clean call of calloc()
+** - mwFree() debugging free. Can only free memory which has
+** been allocated by MEMWATCH.
+** - mwFree_() resolves to a) normal free() or b) debugging free.
+** Can free memory allocated by MEMWATCH and malloc() both.
+** Does not generate any runtime errors.
+*/
+void* mwMalloc( size_t, const char*, int );
+void* mwMalloc_( size_t );
+void* mwRealloc( void *, size_t, const char*, int );
+void* mwRealloc_( void *, size_t );
+void* mwCalloc( size_t, size_t, const char*, int );
+void* mwCalloc_( size_t, size_t );
+void mwFree( void*, const char*, int );
+void mwFree_( void* );
+char* mwStrdup( const char *, const char*, int );
+
+/*
+** Enable/disable precompiler block
+** This block of defines and if(n)defs make sure that references
+** to MEMWATCH is completely removed from the code if the MEMWATCH
+** manifest constant is not defined.
+*/
+#ifndef __MEMWATCH_C
+#ifdef MEMWATCH
+
+#define mwASSERT(exp) while(mwAssert((int)(exp),#exp,__FILE__,__LINE__))
+#ifndef MW_NOASSERT
+#ifndef ASSERT
+#define ASSERT mwASSERT
+#endif /* !ASSERT */
+#endif /* !MW_NOASSERT */
+#define mwVERIFY(exp) while(mwVerify((int)(exp),#exp,__FILE__,__LINE__))
+#ifndef MW_NOVERIFY
+#ifndef VERIFY
+#define VERIFY mwVERIFY
+#endif /* !VERIFY */
+#endif /* !MW_NOVERIFY */
+#define mwTRACE mwTrace
+#ifndef MW_NOTRACE
+#ifndef TRACE
+#define TRACE mwTRACE
+#endif /* !TRACE */
+#endif /* !MW_NOTRACE */
+
+/* some compilers use a define and not a function */
+/* for strdup(). */
+#ifdef strdup
+#undef strdup
+#endif
+
+#define malloc(n) mwMalloc(n,__FILE__,__LINE__)
+#define strdup(p) mwStrdup(p,__FILE__,__LINE__)
+#define realloc(p,n) mwRealloc(p,n,__FILE__,__LINE__)
+#define calloc(n,m) mwCalloc(n,m,__FILE__,__LINE__)
+#define free(p) mwFree(p,__FILE__,__LINE__)
+#define CHECK() mwTest(__FILE__,__LINE__,MW_TEST_ALL)
+#define CHECK_THIS(n) mwTest(__FILE__,__LINE__,n)
+#define CHECK_BUFFER(b) mwTestBuffer(__FILE__,__LINE__,b)
+#define MARK(p) mwMark(p,#p,__FILE__,__LINE__)
+#define UNMARK(p) mwUnmark(p,__FILE__,__LINE__)
+
+#else /* MEMWATCH */
+
+#define mwASSERT(exp)
+#ifndef MW_NOASSERT
+#ifndef ASSERT
+#define ASSERT mwASSERT
+#endif /* !ASSERT */
+#endif /* !MW_NOASSERT */
+
+#define mwVERIFY(exp) exp
+#ifndef MW_NOVERIFY
+#ifndef VERIFY
+#define VERIFY mwVERIFY
+#endif /* !VERIFY */
+#endif /* !MW_NOVERIFY */
+
+/*lint -esym(773,mwTRACE) */
+#define mwTRACE /*lint -save -e506 */ 1?(void)0:mwDummyTraceFunction /*lint -restore */
+#ifndef MW_NOTRACE
+#ifndef TRACE
+/*lint -esym(773,TRACE) */
+#define TRACE mwTRACE
+#endif /* !TRACE */
+#endif /* !MW_NOTRACE */
+
+extern void mwDummyTraceFunction(const char *,...);
+/*lint -save -e652 */
+#define mwDoFlush(n)
+#define mwPuts(s)
+#define mwInit()
+#define mwGrab(n)
+#define mwDrop(n)
+#define mwLimit(n)
+#define mwTest(f,l)
+#define mwSetOutFunc(f)
+#define mwSetAriFunc(f)
+#define mwDefaultAri()
+#define mwNomansland()
+#define mwStatistics(f)
+#define mwMark(p,t,f,n) (p)
+#define mwUnmark(p,f,n) (p)
+#define mwMalloc(n,f,l) malloc(n)
+#define mwStrdup(p,f,l) strdup(p)
+#define mwRealloc(p,n,f,l) realloc(p,n)
+#define mwCalloc(n,m,f,l) calloc(n,m)
+#define mwFree(p) free(p)
+#define mwMalloc_(n) malloc(n)
+#define mwRealloc_(p,n) realloc(p,n)
+#define mwCalloc_(n,m) calloc(n,m)
+#define mwFree_(p) free(p)
+#define mwAssert(e,es,f,l)
+#define mwVerify(e,es,f,l) (e)
+#define mwTrace mwDummyTrace
+#define mwTestBuffer(f,l,b) (0)
+#define CHECK()
+#define CHECK_THIS(n)
+#define CHECK_BUFFER(b)
+#define MARK(p) (p)
+#define UNMARK(p) (p)
+/*lint -restore */
+
+#endif /* MEMWATCH */
+#endif /* !__MEMWATCH_C */
+
+#ifdef __cplusplus
+ }
+#endif
+
+#if 0 /* 980317: disabled C++ */
+
+/*
+** C++ support section
+** Implements the C++ support. Please note that in order to avoid
+** messing up library classes, C++ support is disabled by default.
+** You must NOT enable it until AFTER the inclusion of all header
+** files belonging to code that are not compiled with MEMWATCH, and
+** possibly for some that are! The reason for this is that a C++
+** class may implement it's own new() function, and the preprocessor
+** would substitute this crucial declaration for MEMWATCH new().
+** You can forcibly deny C++ support by defining MEMWATCH_NOCPP.
+** To enble C++ support, you must be compiling C++, MEMWATCH must
+** be defined, MEMWATCH_NOCPP must not be defined, and finally,
+** you must define 'new' to be 'mwNew', and 'delete' to be 'mwDelete'.
+** Unlike C, C++ code can begin executing *way* before main(), for
+** example if a global variable is created. For this reason, you can
+** declare a global variable of the class 'MemWatch'. If this is
+** is the first variable created, it will then check ALL C++ allocations
+** and deallocations. Unfortunately, this evaluation order is not
+** guaranteed by C++, though the compilers I've tried evaluates them
+** in the order encountered.
+*/
+#ifdef __cplusplus
+#ifndef __MEMWATCH_C
+#ifdef MEMWATCH
+#ifndef MEMWATCH_NOCPP
+extern int mwNCur;
+extern const char *mwNFile;
+extern int mwNLine;
+class MemWatch {
+public:
+ MemWatch();
+ ~MemWatch();
+ };
+void * operator new(size_t);
+void * operator new(size_t,const char *,int);
+void * operator new[] (size_t,const char *,int); // hjc 07/16/02
+void operator delete(void *);
+#define mwNew new(__FILE__,__LINE__)
+#define mwDelete (mwNCur=1,mwNFile=__FILE__,mwNLine=__LINE__),delete
+#endif /* MEMWATCH_NOCPP */
+#endif /* MEMWATCH */
+#endif /* !__MEMWATCH_C */
+#endif /* __cplusplus */
+
+#endif /* 980317: disabled C++ */
+
+#endif /* __MEMWATCH_H */
+
+/* EOF MEMWATCH.H */
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