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Removed obsolete and unused files.

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dimitr 2003-02-15 10:49:29 +00:00
parent 19018f677c
commit cb21ccaac2
3 changed files with 0 additions and 831 deletions
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739
src/remote/wfwnp.cpp
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@ -1,739 +0,0 @@
/*
* PROGRAM: JRD Remote Interface/Server
* MODULE: wfwnp.c
* DESCRIPTION: Windows for Workgroups Named Pipe Support module.
*
* The contents of this file are subject to the Interbase Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy
* of the License at http://www.Inprise.com/IPL.html
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
* or implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code was created by Inprise Corporation
* and its predecessors. Portions created by Inprise Corporation are
* Copyright (C) Inprise Corporation.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
/*
* Please note that the following implementation of Windows NT named pipe
* support functions is only a partial implementation of these functions.
* This is only a wrapping of these functions to enable existing NT code
* to function properly. This code should be studied and modified if
* necessary when any new calls to these functions are made. In other
* words, use these functions within Windows 3.11 at your own risk.
* In addition, unlike Windows NT, the error code is reset after each
* function call to avoid instancing problems. This means GetLastError()
* returns NO_ERROR after a successful function call even if the preceding
* function resulted in an error.
*
*/
#include "firebird.h"
#include "../jrd/ib_stdio.h"
#include <nmpipe.h>
#define INCL_ERRORS
#include <bseerr.h>
#include "../jrd/ibase.h"
#include "../remote/remote.h"
#include "../remote/wfwnp.h"
#include "../remote/wfwnp_proto.h"
#include "../jrd/gds_proto.h"
#define IO_READ 0
#define IO_WRITE 1
/*
** The windows netapi library has to be dynamically loaded because the
** library may not be installed if the user does not have name pipe support.
** they are using SPX). The following defines the netapi functions to
** reference function pointers which will be set using the windows
** GetProcAddress function at startup.
*/
#define DosReadAsyncNmPipe DosReadAsyncNmPipeProcPtr
#define DosWriteAsyncNmPipe DosWriteAsyncNmPipeProcPtr
#define GET_WIN_ENTRYPOINT(funcp,funcname) \
funcp = GetProcAddress (hlib, funcname); \
if (funcp == NULL) {FreeLibrary (hlib); \
hlib = 0; return FB_FAILURE; }
typedef struct tag_wnpport {
HANDLE hFile;
LPVOID lpBuffer;
BOOL bFinished;
USHORT usAsyncErr;
USHORT usNumberOfBytes;
char acBuffer[ASYNC_READ_BYTES];
PORT port;
BOOL bWaiting;
FARPROC pfnBlockingHook;
struct tag_wnpport *next;
} *WNPPORT;
static HINSTANCE hlib = 0;
/* necessary static variables */
static FARPROC tpfnBlockingHook;
static DWORD tdwErrCode;
static WNPPORT head_of_port_list = NULL;
static BOOL wfwnp_pipe_io(WORD, HANDLE, LPVOID, USHORT, LPDWORD);
static WNPPORT wfwnp_add(void);
static BOOL wfwnp_remove(WNPPORT wnpremove);
static WNPPORT wfwnp_find_handle(HANDLE hFile);
static WNPPORT wfwnp_find_buffer(LPVOID lpBuffer);
void wfwnp_cleanup(void *);
void _far _pascal wfwnp_async_callback(LPVOID);
static int _far _pascal blocking_stub(void);
static PIPE_FUNCTION(*DosReadAsyncNmPipeProcPtr) (unsigned short,
API_CALLBACK,
unsigned short far *,
unsigned char far *,
unsigned short,
unsigned short far *);
static PIPE_FUNCTION(*DosWriteAsyncNmPipeProcPtr) (unsigned short,
API_CALLBACK,
unsigned short far *,
unsigned char far *,
unsigned short,
unsigned short far *);
int initWNP(void)
{
/**************************************
*
* i n i t W N P
*
**************************************
*
* Functional description:
* Initializes the netapi library.
*
**************************************/
extern HINSTANCE LoadDll(UCHAR *);
if (hlib == 0) {
hlib = LoadDll("netapi.dll");
if (hlib) {
GET_WIN_ENTRYPOINT(DosReadAsyncNmPipeProcPtr,
"DosReadAsyncNmPipe");
GET_WIN_ENTRYPOINT(DosWriteAsyncNmPipeProcPtr,
"DosWriteAsyncNmPipe");
gds__register_cleanup(wfwnp_cleanup, (void *) hlib);
}
else {
return FB_FAILURE;
}
}
WNPSetBlockingHook(blocking_stub);
SetLastError(NO_ERROR);
return FB_SUCCESS;
}
HANDLE CreateFile(LPCSTR lpFileName,
DWORD dwDesiredAccess,
DWORD dwShareMode,
LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition,
DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
{
/**************************************
*
* C r e a t e F i l e
*
**************************************
*
* Functional description
* Very limited support of Windows NT CreateFile function for named pipes.
* Sets GetLastError() to ERROR_BAD_PIPE if unsuccessful for any reason.
* NO_ERROR if successful.
*
**************************************/
HANDLE hFile;
DWORD dwTimeBeg;
WNPPORT wnpport;
/* Add a new internal buffer for this connection */
wnpport = wfwnp_add();
if (wnpport == NULL) {
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return INVALID_HANDLE_VALUE;
}
dwTimeBeg = GetTickCount();
/* Wait for successful open on pipe */
do {
hFile = _lopen(lpFileName, READ_WRITE);
if (hFile != HFILE_ERROR) {
/* Save handle in internal buffer */
wnpport->hFile = hFile;
/* Successfully opened pipe */
SetLastError(NO_ERROR);
return hFile;
}
/* Call blocking hook to yield if necessary */
while (wnpport->pfnBlockingHook());
}
while ((GetTickCount() - dwTimeBeg) < CF_TIMEOUT);
/* Remove internal buffer for this connection */
wfwnp_remove(wnpport);
/* Unable to open pipe */
SetLastError(ERROR_FILE_NOT_FOUND);
return INVALID_HANDLE_VALUE;
}
BOOL ReadFile(HANDLE hFile,
LPVOID lpBuffer,
DWORD dwNumberOfBytesToRead,
LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
{
/**************************************
*
* R e a d F i l e
*
**************************************
*
* Functional description
* Very limited support of Windows NT ReadFile function for named pipes.
* Note that even though dwNumberOfBytes is DWORD, this call is limited
* to MAX_PIPE_IO_BYTES (65535) for length of data to read.
*
**************************************/
/* Check if parameter exceeds limits */
if (dwNumberOfBytesToRead > MAX_PIPE_IO_BYTES) {
SetLastError(ERROR_BAD_LENGTH);
return FALSE;
}
return wfwnp_pipe_io(IO_READ, hFile, lpBuffer,
(USHORT) dwNumberOfBytesToRead, lpNumberOfBytesRead);
}
BOOL WriteFile(HANDLE hFile,
LPCVOID lpBuffer,
DWORD dwNumberOfBytesToWrite,
LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
{
/**************************************
*
* W r i t e F i l e
*
**************************************
*
* Functional description
* Very limited support of Windows NT WriteFile function for named pipes.
* Note that even though dwNumberOfBytes is DWORD, this call is limited
* to MAX_PIPE_IO_BYTES (65535) for length of data to write.
*
**************************************/
/* Check if parameter exceeds limits */
if (dwNumberOfBytesToWrite > MAX_PIPE_IO_BYTES) {
SetLastError(ERROR_BAD_LENGTH);
return FALSE;
}
return wfwnp_pipe_io(IO_WRITE, hFile, lpBuffer,
(USHORT) dwNumberOfBytesToWrite,
lpNumberOfBytesWritten);
}
BOOL CloseHandle(HANDLE hFile)
{
/**************************************
*
* C l o s e H a n d l e
*
**************************************
*
* Functional description
* Support of Windows NT CloseHandle function for named pipes.
*
**************************************/
WNPPORT wnpport;
wnpport = wfwnp_find_handle(hFile);
if (_lclose((HFILE) hFile) == HFILE_ERROR || wnpport == NULL) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
/* Wait for close to finish on async read */
if (wnpport->bWaiting) {
DWORD dwTimeBeg;
dwTimeBeg = GetTickCount();
while (wnpport->bWaiting && (GetTickCount() - dwTimeBeg) < CH_TIMEOUT) {
/* Call blocking hook to yield if necessary */
while (wnpport->pfnBlockingHook());
}
/* Error if close never finished */
if (wnpport->bWaiting) {
wnpport->hFile = INVALID_HANDLE_VALUE;
SetLastError(ERROR_UNEXP_NET_ERR);
return FALSE;
}
}
/* Remove internal buffer for this connection */
wfwnp_remove(wnpport);
SetLastError(NO_ERROR);
return TRUE;
}
DWORD GetLastError()
{
/**************************************
*
* G e t L a s t E r r o r
*
**************************************
*
* Functional description
* Very limited support of Windows NT GetLastError function for named pipes.
* Note that the value returned by GetLastError() is shared between multiple
* application instances using this DLL. It is important to get this
* value only immediately after making API calls.
*
**************************************/
extern DWORD tdwErrCode;
return tdwErrCode;
}
void SetLastError( DWORD dwErrCode)
{
/**************************************
*
* S e t L a s t E r r o r
*
**************************************
*
* Functional description
* Very limited support of Windows NT SetLastError function for named pipes.
* Note that the value set by SetLastError() is shared between multiple
* application instances using this DLL.
*
**************************************/
extern DWORD tdwErrCode;
tdwErrCode = dwErrCode;
return;
}
BOOL WNPListenForResponse(PORT port)
{
/**************************************
*
* W N P L i s t e n F o r R e s p o n s e
*
**************************************
*
* Functional description
* Sets up for an async read on port.
*
**************************************/
API_CALLBACK pfn;
USHORT usQuickErr;
WNPPORT wnpport;
/* Setup flag and buffer address in internal buffer for callback */
wnpport = wfwnp_find_handle(port->port_handle);
wnpport->bFinished = FALSE;
wnpport->lpBuffer = wnpport->acBuffer;
if (wnpport == NULL)
return FALSE;
wnpport->port = port;
wnpport->bWaiting = TRUE;
/* The following line of code only works within a DLL. If this code is
/* moved, MakeProcInstance() may need to be called instead. */
pfn = (API_CALLBACK) wfwnp_async_callback;
/* Do async read */
usQuickErr = DosReadAsyncNmPipe((USHORT) port->port_handle, pfn,
&wnpport->usAsyncErr, wnpport->acBuffer,
(USHORT) ASYNC_READ_BYTES,
&wnpport->usNumberOfBytes);
return (usQuickErr == 0);
}
FARPROC WNPSetBlockingHook(FARPROC pfnBlockingHook)
{
/**************************************
*
* W N P S e t B l o c k i n g H o o k
*
**************************************
*
* Functional description
* Sets the blocking hook function to overide the default implementation.
*
**************************************/
FARPROC pfnOldBlockingHook = tpfnBlockingHook;
tpfnBlockingHook = pfnBlockingHook;
return pfnOldBlockingHook;
}
static BOOL wfwnp_pipe_io(
WORD wType,
HANDLE hFile,
LPVOID lpBuffer,
USHORT usNumberOfBytes, LPDWORD lpNumberOfBytes)
{
/**************************************
*
* w f w n p _ p i p e _ i o
*
**************************************
*
* Functional description
* Implements the ReadFile and WriteFile functions.
* Buffer size, usNumberOfBytes, is limited to MAX_PIPE_IO_BYTES (65535).
*
**************************************/
extern HINSTANCE hInstance;
API_CALLBACK pfn;
USHORT usQuickErr;
WNPPORT wnpport;
/* Setup flag and buffer address in internal buffer for callback */
wnpport = wfwnp_find_handle(hFile);
wnpport->bFinished = FALSE;
wnpport->lpBuffer = lpBuffer;
if (wnpport == NULL) {
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
/* The following line of code only works within a DLL. If this code is
/* moved, MakeProcInstance() may need to be called instead. */
pfn = (API_CALLBACK) wfwnp_async_callback;
if (wType == IO_READ) {
/* Do async read */
usQuickErr = DosReadAsyncNmPipe((USHORT) hFile, pfn,
&wnpport->usAsyncErr, lpBuffer,
usNumberOfBytes,
&wnpport->usNumberOfBytes);
}
else if (wType == IO_WRITE) {
/* Do async write */
usQuickErr = DosWriteAsyncNmPipe((USHORT) hFile, pfn,
&wnpport->usAsyncErr, lpBuffer,
usNumberOfBytes,
&wnpport->usNumberOfBytes);
}
else
usQuickErr = ERROR_INVALID_PARAMETER;
if (usQuickErr != 0) {
SetLastError(usQuickErr);
return FALSE;
}
/* Wait for read/write to complete */
while (TRUE) {
while (wnpport->pfnBlockingHook());
if (wnpport->bFinished)
break;
}
*lpNumberOfBytes = wnpport->usNumberOfBytes;
if (wnpport->usAsyncErr != 0) {
SetLastError(wnpport->usAsyncErr);
return FALSE;
}
SetLastError(NO_ERROR);
return TRUE;
}
static WNPPORT wfwnp_add(void)
{
/**************************************
*
* w f w n p _ a d d
*
**************************************
*
* Functional description
* Adds a new internal buffer for tracking this connection.
*
**************************************/
WNPPORT wnpport;
wnpport = (WNPPORT) ALLOC_LIB_MEMORY((SLONG) sizeof(*wnpport));
/* FREE: static memory freed when DLL unloaded? */
if (wnpport == NULL) /* NOMEM: */
return NULL;
wnpport->hFile = INVALID_HANDLE_VALUE;
wnpport->lpBuffer = NULL;
wnpport->bFinished = FALSE;
wnpport->usAsyncErr = NO_ERROR;
wnpport->usNumberOfBytes = 0;
wnpport->port = NULL;
wnpport->bWaiting = FALSE;
wnpport->pfnBlockingHook = tpfnBlockingHook;
wnpport->next = NULL;
if (head_of_port_list == 0)
head_of_port_list = wnpport;
else {
wnpport->next = head_of_port_list;
head_of_port_list = wnpport;
}
return wnpport;
}
static BOOL wfwnp_remove( WNPPORT wnpremove)
{
/**************************************
*
* w f w n p _ r e m o v e
*
**************************************
*
* Functional description
* Removes the internal buffer for tracking this connection.
*
**************************************/
WNPPORT wnpport;
if (head_of_port_list == NULL || wnpremove == NULL)
return FALSE;
if (head_of_port_list == wnpremove) {
head_of_port_list = head_of_port_list->next;
FREE_LIB_MEMORY(wnpremove);
return TRUE;
}
for (wnpport = head_of_port_list; wnpport != NULL;
wnpport = wnpport->next) {
if (wnpport->next == wnpremove) {
wnpport->next = wnpport->next->next;
FREE_LIB_MEMORY(wnpremove);
return TRUE;
}
}
return FALSE;
}
static WNPPORT wfwnp_find_handle( HANDLE hFile)
{
/**************************************
*
* w f w n p _ f i n d _ h a n d le
*
**************************************
*
* Functional description
* Searched and returns an internal buffer by file handle.
*
**************************************/
WNPPORT wnpport;
for (wnpport = head_of_port_list; wnpport != NULL &&
wnpport->hFile != hFile; wnpport = wnpport->next);
return wnpport;
}
static WNPPORT wfwnp_find_buffer( LPVOID lpBuffer)
{
/**************************************
*
* w f w n p _ f i n d _ b u f f e r
*
**************************************
*
* Functional description
* Searched and returns an internal buffer by file buffer.
*
**************************************/
WNPPORT wnpport;
for (wnpport = head_of_port_list; wnpport != NULL;
wnpport = wnpport->next) {
if (wnpport->hFile != INVALID_HANDLE_VALUE
&& wnpport->lpBuffer == lpBuffer) break;
}
return wnpport;
}
void wfwnp_cleanup( void *arg)
{
/**************************************
*
* w f w n p _ c l e a n u p
*
**************************************
*
* Functional description:
* If an arg is passed in, it is the handle to a dynamically loaded
* library, so free it.
*
**************************************/
if (arg != NULL) {
/* Free netapi.dll which was loaded and saved in the global hlib var */
FreeLibrary((HINSTANCE) arg);
}
return;
}
void _far _pascal wfwnp_async_callback( LPVOID lpBuffer)
{
/**************************************
*
* w f w n p _ a s y n c _ c a l l b a c k
*
**************************************
*
* Functional description
* Callback function for both read and write operations when finished.
*
**************************************/
WNPPORT wnpport;
/* Get the internal buffer for this I/O call */
wnpport = wfwnp_find_buffer(lpBuffer);
if (wnpport != NULL && !wnpport->bFinished) {
PORT port;
/* Mark flag as finished */
wnpport->bFinished = TRUE;
wnpport->lpBuffer = NULL;
port = wnpport->port;
/* Check if async read */
if (port != NULL && wnpport->bWaiting) {
wnpport->bWaiting = FALSE;
memcpy(port->port_receive.x_private, lpBuffer,
wnpport->usNumberOfBytes);
port->port_receive.x_handy += wnpport->usNumberOfBytes;
/* Post message to trigger remaining read on pipe */
if (port->port_msg_handle != NULL) {
PostMessage(port->port_msg_handle, WM_USER + 1,
wnpport->usAsyncErr, 0);
}
}
}
return;
}
static int _far _pascal blocking_stub(void)
{
/**************************************
*
* b l o c k i n g _ s t u b
*
**************************************
*
* Functional description:
* Defines an empty blocking stub so that by default we do not
* yield the CPU when waiting on name pipe I/O.
* The user must register a blocking function with our DLL
* before we will allow any yields (protects ODAPI from re-entrancy).
*
**************************************/
/*
* This implementation could be changed to the following code for
* background message processing by default.
*
* MSG msg;
* BOOL bMessage;
*
* bMessage = (BOOL) PeekMessage (&msg, NULL, 0, 0, PM_REMOVE | PM_NOYIELD);
*
* if (bMessage)
* {
* TranslateMessage (&msg);
* DispatchMessage (&msg);
* }
*
* return bMessage;
*
**************************************/
return FALSE;
}

54
src/remote/wfwnp.h
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@ -1,54 +0,0 @@
/*
* PROGRAM: JRD Remote Interface/Server
* MODULE: wfwnp.h
* DESCRIPTION: Windows for Workgroups named pipe support definitions
*
* The contents of this file are subject to the Interbase Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy
* of the License at http://www.Inprise.com/IPL.html
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
* or implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code was created by Inprise Corporation
* and its predecessors. Portions created by Inprise Corporation are
* Copyright (C) Inprise Corporation.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
#ifndef _WFWNP_H
#define _WFWNP_H
#define CF_TIMEOUT 10000L /* Timeout used for waiting for successful */
/* CreateFile to a named pipe. */
#define CH_TIMEOUT 10000L /* Timeout used for waiting for successful */
/* CloseHandle on a named pipe. */
#define ASYNC_READ_BYTES 1 /* Bytes to wait for on async read */
#define MAX_PIPE_IO_BYTES 0xFFFF /* Maximum bytes read/write in call */
#define GENERIC_READ (0x80000000L)
#define GENERIC_WRITE (0x40000000L)
#define FILE_SHARE_READ 0x00000001
#define FILE_SHARE_WRITE 0x00000002
#define CREATE_NEW 1
#define CREATE_ALWAYS 2
#define OPEN_EXISTING 3
#define OPEN_ALWAYS 4
#define TRUNCATE_EXISTING 5
#define INVALID_HANDLE_VALUE (HANDLE)-1
typedef const void far *LPCVOID;
typedef void *LPSECURITY_ATTRIBUTES;
typedef void *LPOVERLAPPED;
#endif /* _WFWNP_H */

38
src/remote/wfwnp_proto.h
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@ -1,38 +0,0 @@
/*
* PROGRAM: JRD Remote Interface/Server
* MODULE: wfwnp_pr.h
* DESCRIPTION: Prototpe header file for wfwnp.c
*
* The contents of this file are subject to the Interbase Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy
* of the License at http://www.Inprise.com/IPL.html
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
* or implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code was created by Inprise Corporation
* and its predecessors. Portions created by Inprise Corporation are
* Copyright (C) Inprise Corporation.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
#ifndef _WFWNP_PR_H
#define _WFWNP_PR_H
int initWNP (void);
HANDLE CreateFile (LPCSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD,
DWORD, HANDLE);
BOOL ReadFile (HANDLE, LPVOID, DWORD, LPDWORD, LPOVERLAPPED);
BOOL WriteFile (HANDLE, LPCVOID, DWORD, LPDWORD, LPOVERLAPPED);
BOOL FlushFileBuffers (HANDLE);
BOOL CloseHandle (HANDLE);
DWORD GetLastError ();
void SetLastError (DWORD);
BOOL WNPListenForResponse(PORT);
FARPROC WNPSetBlockingHook (FARPROC);
#endif /* _WFWNP_PR_H */