home *** CD-ROM | disk | FTP | other *** search
- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- #ifndef prwin16_h___
- #define prwin16_h___
-
- /*
- ** Condition use of this header on platform.
- */
- #if (defined(XP_PC) && !defined(_WIN32) && defined(MOZILLA_CLIENT)) || defined(WIN16)
- #include <stdio.h>
-
- PR_BEGIN_EXTERN_C
- /*
- ** Win16 stdio special case.
- ** To get stdio to work for Win16, all calls to printf() and related
- ** things must be called from the environment of the .EXE; calls to
- ** printf() from the .DLL send output to the bit-bucket.
- **
- ** To make sure that PR_fprintf(), and related functions, work correctly,
- ** the actual stream I/O to stdout, stderr, stdin must be done in the
- ** .EXE. To do this, a hack is placed in _MD_Write() such that the
- ** fd for stdio handles results in a call to the .EXE.
- **
- ** file w16stdio.c contains the functions that get called from NSPR
- ** to do the actual I/O. w16stdio.o must be statically linked with
- ** any application needing stdio for Win16.
- **
- ** The address of these functions must be made available to the .DLL
- ** so he can call back to the .EXE. To do this, function
- ** PR_MD_RegisterW16StdioCallbacks() is called from the .EXE.
- ** The arguments are the functions defined in w16stdio.c
- ** At runtime, MD_Write() calls the registered functions, if any
- ** were registered.
- **
- ** prinit.h contains a macro PR_STDIO_INIT() that calls the registration
- ** function for Win16; For other platforms, the macro is a No-Op.
- **
- ** Note that stdio is not operational at all on Win16 GUI applications.
- ** This special case exists to provide stdio capability from the NSPR
- ** .DLL for command line applications only. NSPR's test cases are
- ** almost exclusively command line applications.
- **
- ** See also: w16io.c, w16stdio.c
- */
- typedef PRInt32 (PR_CALLBACK *PRStdinRead)( void *buf, PRInt32 amount);
- typedef PRInt32 (PR_CALLBACK *PRStdoutWrite)( void *buf, PRInt32 amount);
- typedef PRInt32 (PR_CALLBACK *PRStderrWrite)( void *buf, PRInt32 amount);
-
- PR_EXTERN(PRStatus)
- PR_MD_RegisterW16StdioCallbacks(
- PRStdinRead inReadf, /* i: function pointer for stdin read */
- PRStdoutWrite outWritef, /* i: function pointer for stdout write */
- PRStderrWrite errWritef /* i: function pointer for stderr write */
- );
-
- PR_EXTERN(PRInt32)
- _PL_W16StdioWrite( void *buf, PRInt32 amount );
-
- PR_EXTERN(PRInt32)
- _PL_W16StdioRead( void *buf, PRInt32 amount );
-
- #define PR_STDIO_INIT() PR_MD_RegisterW16StdioCallbacks( \
- _PL_W16StdioRead, _PL_W16StdioWrite, _PL_W16StdioWrite ); \
- PR_INIT_CALLBACKS();
-
- /*
- ** Win16 hackery.
- **
- */
- struct PRMethodCallbackStr {
- int (PR_CALLBACK *auxOutput)(const char *outputString);
- size_t (PR_CALLBACK *strftime)(char *s, size_t len, const char *fmt, const struct tm *p);
- void * (PR_CALLBACK *malloc)( size_t size );
- void * (PR_CALLBACK *calloc)(size_t n, size_t size );
- void * (PR_CALLBACK *realloc)( void* old_blk, size_t size );
- void (PR_CALLBACK *free)( void *ptr );
- void * (PR_CALLBACK *getenv)( const char *name);
- int (PR_CALLBACK *putenv)( const char *assoc);
- // void * (PR_CALLBACK *perror)( const char *prefix );
- };
-
- PR_EXTERN(void) PR_MDRegisterCallbacks(struct PRMethodCallbackStr *);
-
- int PR_CALLBACK _PL_W16CallBackPuts( const char *outputString );
- size_t PR_CALLBACK _PL_W16CallBackStrftime(
- char *s,
- size_t len,
- const char *fmt,
- const struct tm *p );
- void * PR_CALLBACK _PL_W16CallBackMalloc( size_t size );
- void * PR_CALLBACK _PL_W16CallBackCalloc( size_t n, size_t size );
- void * PR_CALLBACK _PL_W16CallBackRealloc(
- void *old_blk,
- size_t size );
- void PR_CALLBACK _PL_W16CallBackFree( void *ptr );
- void * PR_CALLBACK _PL_W16CallBackGetenv( const char *name );
- int PR_CALLBACK _PL_W16CallBackPutenv( const char *assoc );
-
- /*
- ** Hackery!
- **
- ** These functions are provided as static link points.
- ** This is to satisfy the quick port of Gromit to NSPR 2.0
- ** ... Don't do this! ... alas, It may never go away.
- **
- */
- PR_EXTERN(int) PR_MD_printf(const char *, ...);
- PR_EXTERN(void) PR_MD_exit(int);
- PR_EXTERN(size_t) PR_MD_strftime(char *, size_t, const char *, const struct tm *);
- PR_EXTERN(int) PR_MD_sscanf(const char *, const char *, ...);
- PR_EXTERN(void*) PR_MD_malloc( size_t size );
- PR_EXTERN(void*) PR_MD_calloc( size_t n, size_t size );
- PR_EXTERN(void*) PR_MD_realloc( void* old_blk, size_t size );
- PR_EXTERN(void) PR_MD_free( void *ptr );
- PR_EXTERN(char*) PR_MD_getenv( const char *name );
- PR_EXTERN(int) PR_MD_putenv( const char *assoc );
- PR_EXTERN(int) PR_MD_fprintf(FILE *fPtr, const char *fmt, ...);
-
- #define PR_INIT_CALLBACKS() \
- { \
- static struct PRMethodCallbackStr cbf = { \
- _PL_W16CallBackPuts, \
- _PL_W16CallBackStrftime, \
- _PL_W16CallBackMalloc, \
- _PL_W16CallBackCalloc, \
- _PL_W16CallBackRealloc, \
- _PL_W16CallBackFree, \
- _PL_W16CallBackGetenv, \
- _PL_W16CallBackPutenv, \
- }; \
- PR_MDRegisterCallbacks( &cbf ); \
- }
-
-
- /*
- ** Get the exception context for Win16 MFC applications threads
- */
- PR_EXTERN(void *) PR_W16GetExceptionContext(void);
- /*
- ** Set the exception context for Win16 MFC applications threads
- */
- PR_EXTERN(void) PR_W16SetExceptionContext(void *context);
-
- PR_END_EXTERN_C
- #else
- /*
- ** For platforms other than Win16, define
- ** PR_STDIO_INIT() as a No-Op.
- */
- #define PR_STDIO_INIT()
- #endif /* WIN16 || MOZILLA_CLIENT */
-
- #endif /* prwin16_h___ */
-
-
-
-
-
-
-
-
-