mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-01-25 00:43:03 +01:00
152 lines
4.1 KiB
C++
152 lines
4.1 KiB
C++
/*
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* PROGRAM: JRD Remote Interface/Server
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* MODULE: dllshell.c
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* DESCRIPTION: Win16 DLL entry and exit functions
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#include "firebird.h"
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#include "../jrd/common.h"
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#include <windows.h>
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#include <winsock2.h>
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#include <signal.h>
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#include "../jrd/gds_proto.h"
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/* The DLL's instance handle. This is used to create windows later. */
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HINSTANCE hInstance;
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/* floating point exception counter */
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static int fpe_count;
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/* static function prototypes */
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static void fpe_handler(int);
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LRESULT FAR PASCAL inet_wndproc(HWND hwnd, UINT message, WPARAM wParam,
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LPARAM lParam);
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LRESULT FAR PASCAL spxnet_wndproc(HWND hwnd, UINT message, WPARAM wParam,
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LPARAM lParam);
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void spx_cleanup(void *arg);
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void wfwnp_cleanup(void *arg);
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void inet_cleanup(void *arg);
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// Every DLL has an entry point LibMain and an exit point WEP.
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int FAR PASCAL LibMain(HINSTANCE hInst, WORD wDataSegment,
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WORD wHeapSize, LPSTR lpszCmdLine)
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{
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WNDCLASS wndclass_tcp;
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#ifdef SPX
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WNDCLASS wndclass_spx;
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#endif
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hInstance = hInst;
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// The startup code for the DLL initializes the local heap (if there is one)
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// with a call to LocalInit which locks the data segment.
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if (wHeapSize != 0)
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UnlockData(0);
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/* Define an invisible window class used for receiving winsock messages */
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wndclass_tcp.style = CS_HREDRAW;
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wndclass_tcp.lpfnWndProc = inet_wndproc;
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wndclass_tcp.cbClsExtra = 0;
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wndclass_tcp.cbWndExtra = sizeof(void FAR *);
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wndclass_tcp.hInstance = hInstance;
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wndclass_tcp.hIcon = NULL;
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wndclass_tcp.hCursor = NULL;
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wndclass_tcp.hbrBackground = NULL;
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wndclass_tcp.lpszMenuName = NULL;
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wndclass_tcp.lpszClassName = "RemoteMsgClass";
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/* ***CM - Add error handling here! */
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RegisterClass(&wndclass_tcp);
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#ifdef SPX
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/* Define an invisible window class used for receiving winsock messages */
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wndclass_spx.style = CS_HREDRAW;
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wndclass_spx.lpfnWndProc = spxnet_wndproc;
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wndclass_spx.cbClsExtra = 0;
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wndclass_spx.cbWndExtra = sizeof(void FAR *);
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wndclass_spx.hInstance = hInstance;
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wndclass_spx.hIcon = NULL;
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wndclass_spx.hCursor = NULL;
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wndclass_spx.hbrBackground = NULL;
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wndclass_spx.lpszMenuName = NULL;
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wndclass_spx.lpszClassName = "RemoteMsgClassSpx";
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/* ***CM - Add error handling here! */
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RegisterClass(&wndclass_spx);
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#endif /* SPX */
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/* init the floating point exception count and set the handler */
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fpe_count = 0;
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signal(SIGFPE, fpe_handler);
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return 1;
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}
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int FAR PASCAL WEP(int bSystemExit)
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{
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/*
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** Until the gds__cleanup processing is fixed, at least clean up SPX
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** or Windows will crash when we exit.
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** Same for named pipes under Windows.
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** For TCP/IP we must unload Winsock.dll.
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*/
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TRACE("Called remote\\dllshell.c WEP()...\n");
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TRACE("remote\\dllshell.c WEP: calling spx_cleanup()\n");
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spx_cleanup(NULL);
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TRACE("remote\\dllshell.c WEP: calling wfwnp_cleanup()\n");
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wfwnp_cleanup(NULL);
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TRACE("remote\\dllshell.c WEP: calling inet_cleanup()\n");
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inet_cleanup(NULL);
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TRACE("Returning from remote\\dllshell.c WEP()...\n");
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return 1;
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}
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HINSTANCE LoadDll(UCHAR * name)
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{
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HINSTANCE hlib;
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UINT fuErrorMode;
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fuErrorMode = SetErrorMode(SEM_NOOPENFILEERRORBOX);
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hlib = LoadLibrary(name);
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(void) SetErrorMode(fuErrorMode);
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if (!hlib) {
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gds__log("Windows error %d while attempting to load %s",
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GetLastError(), name);
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return 0;
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}
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else
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return hlib;
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}
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static void fpe_handler(int signal_number)
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{
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signal(SIGFPE, fpe_handler); /* reset handler */
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fpe_count++; /* count the event */
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}
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