summaryrefslogtreecommitdiffstats
path: root/nsprpub/pr/include/prwin16.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--nsprpub/pr/include/prwin16.h164
1 files changed, 164 insertions, 0 deletions
diff --git a/nsprpub/pr/include/prwin16.h b/nsprpub/pr/include/prwin16.h
new file mode 100644
index 0000000000..b545f04af0
--- /dev/null
+++ b/nsprpub/pr/include/prwin16.h
@@ -0,0 +1,164 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prwin16_h___
+#define prwin16_h___
+
+/*
+** Condition use of this header on platform.
+*/
+#if (defined(XP_PC) && !defined(_WIN32) && !defined(XP_OS2) && 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);
+
+NSPR_API(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 */
+);
+
+NSPR_API(PRInt32)
+_PL_W16StdioWrite( void *buf, PRInt32 amount );
+
+NSPR_API(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 ); */
+};
+
+NSPR_API(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.
+**
+*/
+NSPR_API(int) PR_MD_printf(const char *, ...);
+NSPR_API(void) PR_MD_exit(int);
+NSPR_API(size_t) PR_MD_strftime(char *, size_t, const char *, const struct tm *);
+NSPR_API(int) PR_MD_sscanf(const char *, const char *, ...);
+NSPR_API(void*) PR_MD_malloc( size_t size );
+NSPR_API(void*) PR_MD_calloc( size_t n, size_t size );
+NSPR_API(void*) PR_MD_realloc( void* old_blk, size_t size );
+NSPR_API(void) PR_MD_free( void *ptr );
+NSPR_API(char*) PR_MD_getenv( const char *name );
+NSPR_API(int) PR_MD_putenv( const char *assoc );
+NSPR_API(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
+*/
+NSPR_API(void *) PR_W16GetExceptionContext(void);
+/*
+** Set the exception context for Win16 MFC applications threads
+*/
+NSPR_API(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___ */
+
+
+
+
+
+
+
+