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1st cut implementation of DdeInitialize32W and supporting code.
This commit is contained in:
parent
e905f3c681
commit
e32abe8a76
132
include/ddeml.h
132
include/ddeml.h
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@ -16,11 +16,119 @@
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#define CP_WINUNICODE 1200
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#define MSGF_DDEMGR 0x8001
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/***************************************************
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FLAGS Section - copied from Microsoft SDK as must be standard, probably Copyright Microsoft Corporation
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***************************************************/
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/*
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* Callback filter flags for use with standard apps.
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*/
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#define CBF_FAIL_SELFCONNECTIONS 0x00001000
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#define CBF_FAIL_CONNECTIONS 0x00002000
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#define CBF_FAIL_ADVISES 0x00004000
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#define CBF_FAIL_EXECUTES 0x00008000
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#define CBF_FAIL_POKES 0x00010000
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#define CBF_FAIL_REQUESTS 0x00020000
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#define CBF_FAIL_ALLSVRXACTIONS 0x0003f000
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#define CBF_SKIP_CONNECT_CONFIRMS 0x00040000
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#define CBF_SKIP_REGISTRATIONS 0x00080000
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#define CBF_SKIP_UNREGISTRATIONS 0x00100000
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#define CBF_SKIP_DISCONNECTS 0x00200000
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#define CBF_SKIP_ALLNOTIFICATIONS 0x003c0000
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/*
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* Application command flags
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*/
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#define APPCMD_CLIENTONLY 0x00000010L
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#define APPCMD_FILTERINITS 0x00000020L
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#define APPCMD_MASK 0x00000FF0L
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/*
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* Application classification flags
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*/
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#define APPCLASS_STANDARD 0x00000000L
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#define APPCLASS_MONITOR 0x00000001L
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#define APPCLASS_MASK 0x0000000FL
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/*
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* Callback filter flags for use with MONITOR apps - 0 implies no monitor
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* callbacks.
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*/
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#define MF_HSZ_INFO 0x01000000
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#define MF_SENDMSGS 0x02000000
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#define MF_POSTMSGS 0x04000000
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#define MF_CALLBACKS 0x08000000
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#define MF_ERRORS 0x10000000
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#define MF_LINKS 0x20000000
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#define MF_CONV 0x40000000
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#define MF_MASK 0xFF000000
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/*
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* DdeNameService service name flags
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*/
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#define DNS_REGISTER 0x0001
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#define DNS_UNREGISTER 0x0002
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#define DNS_FILTERON 0x0004
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#define DNS_FILTEROFF 0x0008
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/****************************************************
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End of Flags section
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****************************************************/
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/****************************************************
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Return Codes section again copied from SDK as must be same
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*****************************************************/
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#define DMLERR_NO_ERROR 0 /* must be 0 */
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#define DMLERR_FIRST 0x4000
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#define DMLERR_ADVACKTIMEOUT 0x4000
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#define DMLERR_BUSY 0x4001
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#define DMLERR_DATAACKTIMEOUT 0x4002
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#define DMLERR_DLL_NOT_INITIALIZED 0x4003
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#define DMLERR_DLL_USAGE 0x4004
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#define DMLERR_EXECACKTIMEOUT 0x4005
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#define DMLERR_INVALIDPARAMETER 0x4006
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#define DMLERR_LOW_MEMORY 0x4007
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#define DMLERR_MEMORY_ERROR 0x4008
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#define DMLERR_NOTPROCESSED 0x4009
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#define DMLERR_NO_CONV_ESTABLISHED 0x400a
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#define DMLERR_POKEACKTIMEOUT 0x400b
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#define DMLERR_POSTMSG_FAILED 0x400c
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#define DMLERR_REENTRANCY 0x400d
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#define DMLERR_SERVER_DIED 0x400e
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#define DMLERR_SYS_ERROR 0x400f
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#define DMLERR_UNADVACKTIMEOUT 0x4010
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#define DMLERR_UNFOUND_QUEUE_ID 0x4011
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#define DMLERR_LAST 0x4011
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/*****************************************************
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End of Return Codes and Microsoft section
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******************************************************/
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typedef DWORD HCONVLIST;
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typedef DWORD HCONV;
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typedef DWORD HSZ;
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typedef DWORD HDDEDATA;
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typedef CHAR *LPTSTR;
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typedef HDDEDATA (CALLBACK *PFNCALLBACK16)(UINT16,UINT16,HCONV,HSZ,HSZ,
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HDDEDATA,DWORD,DWORD);
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HDDEDATA,DWORD,DWORD);
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DECL_WINELIB_TYPE(PFNCALLBACK)
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/***************************************************
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Externally visible data structures
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***************************************************/
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typedef struct
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{
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UINT16 cb;
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@ -48,6 +162,24 @@ typedef struct
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DWORD dwSecurity;
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} CONVCONTEXT32, *LPCONVCONTEXT32;
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// Internal data structures
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/* entry for handle table */
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typedef struct DDE_HANDLE_ENTRY {
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BOOL16 Monitor; // have these two as full Booleans cos they'll be tested frequently
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BOOL16 Client_only; // bit wasteful of space but it will be faster
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BOOL16 Unicode; /* Flag to indicate Win32 API used to initialise */
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BOOL16 Win16; /* flag to indicate Win16 API used to initialize */
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LPDWORD Instance_id; // needed to track monitor usage
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struct DDE_HANDLE_ENTRY *Next_Entry;
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PFNCALLBACK32 CallBack;
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DWORD CBF_Flags;
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DWORD Monitor_flags;
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UINT32 Txn_count; // count transactions open to simplify closure
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} DDE_HANDLE_ENTRY;
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// Interface Definitions
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DECL_WINELIB_TYPE(CONVCONTEXT)
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DECL_WINELIB_TYPE(LPCONVCONTEXT)
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358
misc/ddeml.c
358
misc/ddeml.c
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@ -3,6 +3,7 @@
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*
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* Copyright 1997 Alexandre Julliard
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* Copyright 1997 Len White
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* Copyright 1999 Keith Matthews
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*/
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/* Only empty stubs for now */
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@ -12,10 +13,10 @@
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#include "ddeml.h"
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#include "debug.h"
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#include "windows.h"
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#include "wintypes.h"
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#include "winerror.h"
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#include "heap.h"
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/* FIXME: What are these values? */
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#define DMLERR_NO_ERROR 0
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#include "shm_semaph.h"
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/* Has defined in atom.c file.
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*/
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*/
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#define MAX_BUFFER_LEN (MAX_ATOM_LEN + 1)
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static LONG DDE_current_handle;
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static DDE_HANDLE_ENTRY *DDE_Handle_Table_Base = NULL;
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static LPDWORD DDE_Max_Assigned_Instance = 0; // OK for present, may have to worry about wrap-around later
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static const char inst_string[]= "DDEMaxInstance";
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static LPCWSTR DDEInstanceAccess = (LPCWSTR)&inst_string;
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static const char handle_string[] = "DDEHandleAccess";
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static LPCWSTR DDEHandleAccess = (LPCWSTR)&handle_string;
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static HANDLE32 inst_count_mutex = 0;
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static HANDLE32 handle_mutex = 0;
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DDE_HANDLE_ENTRY *this_instance;
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SECURITY_ATTRIBUTES *s_att= NULL;
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DWORD err_no = 0;
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/* typedef struct {
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DWORD nLength;
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LPVOID lpSecurityDescriptor;
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BOOL32 bInheritHandle;
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} SECURITY_ATTRIBUTES; */
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#define TRUE 1
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#define FALSE 0
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/* This is a simple list to keep track of the strings created
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* by DdeCreateStringHandle. The list is used to free
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* the strings whenever DdeUninitialize is called.
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* This mechanism is not complete and does not handle multiple instances.
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* Most of the DDE API use a DWORD parameter indicating witch instance
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* Most of the DDE API use a DWORD parameter indicating which instance
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* of a given program is calling them. The API are supposed to
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* associate the data to the instance that created it.
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*/
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@ -51,6 +74,15 @@ static HSZNode* pHSZNodes = NULL;
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* RemoveHSZNodes (INTERNAL)
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*
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* Remove a node from the list of HSZ nodes.
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Dec 1998 Corel/Macadamian Initial version
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*
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*/
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static void RemoveHSZNode( DWORD idInst, HSZ hsz )
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{
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@ -103,6 +135,15 @@ static void RemoveHSZNode( DWORD idInst, HSZ hsz )
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*
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* Frees up all the strings still allocated in the list and
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* remove all the nodes from the list of HSZ nodes.
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Dec 1998 Corel/Macadamian Initial version
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*
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*/
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static void FreeAndRemoveHSZNodes( DWORD idInst )
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{
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@ -118,6 +159,15 @@ static void FreeAndRemoveHSZNodes( DWORD idInst )
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* InsertHSZNode (INTERNAL)
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*
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* Insert a node to the head of the list.
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Dec 1998 Corel/Macadamian Initial version
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*
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*/
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static void InsertHSZNode( DWORD idInst, HSZ hsz )
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{
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@ -143,6 +193,81 @@ static void InsertHSZNode( DWORD idInst, HSZ hsz )
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}
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}
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/******************************************************************************
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* Release_reserved_mutex
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*
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* generic routine to release a reserved mutex
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*
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Jan 1999 Keith Matthews Initial version
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*
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*/
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DWORD Release_reserved_mutex (HANDLE32 mutex, LPTSTR mutex_name, BOOL32 release_handle_m, BOOL32 release_this_i )
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{
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ReleaseMutex(mutex);
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if ( (err_no=GetLastError()) != 0 )
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{
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ERR(ddeml,"ReleaseMutex failed - %s mutex %li\n",mutex_name,err_no);
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HeapFree(GetProcessHeap(), 0, this_instance);
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if ( release_handle_m )
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{
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ReleaseMutex(handle_mutex);
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}
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return DMLERR_SYS_ERROR;
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}
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if ( release_this_i )
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{
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HeapFree(GetProcessHeap(), 0, this_instance);
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}
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return DMLERR_NO_ERROR;
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}
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/******************************************************************************
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* IncrementInstanceId
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*
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* generic routine to increment the max instance Id and allocate a new application instance
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Jan 1999 Keith Matthews Initial version
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*
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*/
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DWORD IncrementInstanceId()
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{
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SECURITY_ATTRIBUTES s_attrib;
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/* Need to set up Mutex in case it is not already present */
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// increment handle count & get value
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if ( !inst_count_mutex )
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{
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s_attrib.bInheritHandle = TRUE;
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s_attrib.lpSecurityDescriptor = NULL;
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s_attrib.nLength = sizeof(s_attrib);
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inst_count_mutex = CreateMutex32W(&s_attrib,1,DDEInstanceAccess); // 1st time through
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} else {
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WaitForSingleObject(inst_count_mutex,1000); // subsequent calls
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/* FIXME - needs refinement with popup for timeout, also is timeout interval OK */
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}
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if ( (err_no=GetLastError()) == ERROR_INVALID_HANDLE )
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{
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ERR(ddeml,"CreateMutex failed - inst_count %li\n",err_no);
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err_no=Release_reserved_mutex (handle_mutex,"handle_mutex",0,1);
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return DMLERR_SYS_ERROR;
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}
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DDE_Max_Assigned_Instance++;
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this_instance->Instance_id = DDE_Max_Assigned_Instance;
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if (Release_reserved_mutex(inst_count_mutex,"instance_count",1,0)) return DMLERR_SYS_ERROR;
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return DMLERR_NO_ERROR;
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}
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/******************************************************************************
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* DdeInitialize16 (DDEML.2)
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@ -178,17 +303,234 @@ UINT32 WINAPI DdeInitialize32A( LPDWORD pidInst, PFNCALLBACK32 pfnCallback,
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* RETURNS
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* Success: DMLERR_NO_ERROR
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* Failure: DMLERR_DLL_USAGE, DMLERR_INVALIDPARAMETER, DMLERR_SYS_ERROR
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*
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******************************************************************************
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*
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* Change History
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*
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* Vn Date Author Comment
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*
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* 1.0 Pre 1998 Alexandre/Len Initial Stub
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* 1.1 Jan 1999 Keith Matthews Initial (near-)complete version
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*
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*/
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UINT32 WINAPI DdeInitialize32W( LPDWORD pidInst, PFNCALLBACK32 pfnCallback,
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DWORD afCmd, DWORD ulRes )
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{
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FIXME(ddeml, "(%p,%p,0x%lx,%ld): stub\n",pidInst,pfnCallback,afCmd,ulRes);
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DDE_HANDLE_ENTRY *reference_inst;
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SECURITY_ATTRIBUTES s_attrib;
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s_att = &s_attrib;
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if(pidInst)
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*pidInst = 0;
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// probably not really capable of handling mutliple processes, but should handle
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// multiple instances within one process
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if( ulRes )
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{
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ERR(dde, "Reserved value not zero? What does this mean?\n");
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FIXME(ddeml, "(%p,%p,0x%lx,%ld): stub\n",pidInst,pfnCallback,afCmd,ulRes);
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/* trap this and no more until we know more */
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return DMLERR_NO_ERROR;
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}
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if (!pfnCallback )
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{
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/* can't set up the instance with nothing to act as a callback */
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TRACE(ddeml,"No callback provided\n");
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return DMLERR_INVALIDPARAMETER; /* might be DMLERR_DLL_USAGE */
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}
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/* grab enough heap for one control struct - not really necessary for re-initialise
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but allows us to use same validation routines */
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this_instance= (DDE_HANDLE_ENTRY*)HeapAlloc( SystemHeap, 0, sizeof(DDE_HANDLE_ENTRY) );
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if ( this_instance == NULL )
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{
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// catastrophe !! warn user & abort
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ERR (ddeml,"Instance create failed - out of memory\n");
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return DMLERR_SYS_ERROR;
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}
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this_instance->Next_Entry = NULL;
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this_instance->Monitor=(afCmd|APPCLASS_MONITOR);
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// messy bit, spec implies that 'Client Only' can be set in 2 different ways, catch 1 here
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this_instance->Client_only=afCmd&APPCMD_CLIENTONLY;
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this_instance->Instance_id = pidInst; // May need to add calling proc Id
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this_instance->CallBack=*pfnCallback;
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this_instance->Txn_count=0;
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this_instance->Unicode = TRUE;
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this_instance->Win16 = FALSE;
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this_instance->Monitor_flags = afCmd & MF_MASK;
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// isolate CBF flags in one go, expect this will go the way of all attempts to be clever !!
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this_instance->CBF_Flags=afCmd^((afCmd&MF_MASK)|((afCmd&APPCMD_MASK)|(afCmd&APPCLASS_MASK)));
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if ( ! this_instance->Client_only )
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{
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// Check for other way of setting Client-only !!
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this_instance->Client_only=(this_instance->CBF_Flags&CBF_FAIL_ALLSVRXACTIONS)
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==CBF_FAIL_ALLSVRXACTIONS;
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}
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TRACE(ddeml,"instance created - checking validity \n");
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if( *pidInst == 0 ) {
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/* Initialisation of new Instance Identifier */
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TRACE(ddeml,"new instance, callback %p flags %lX\n",pfnCallback,afCmd);
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/* Need to set up Mutex in case it is not already present */
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s_att->bInheritHandle = TRUE;
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s_att->lpSecurityDescriptor = NULL;
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s_att->nLength = sizeof(s_att);
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handle_mutex = CreateMutex32W(s_att,1,DDEHandleAccess);
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if ( (err_no=GetLastError()) == ERROR_INVALID_HANDLE )
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{
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ERR(ddeml,"CreateMutex failed - handle list %li\n",err_no);
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HeapFree(GetProcessHeap(), 0, this_instance);
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return DMLERR_SYS_ERROR;
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}
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TRACE(ddeml,"Handle Mutex created/reserved\n");
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if (DDE_Handle_Table_Base == NULL )
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{
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/* can't be another instance in this case, assign to the base pointer */
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DDE_Handle_Table_Base= this_instance;
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// since first must force filter of XTYP_CONNECT and XTYP_WILDCONNECT for
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// present
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// ------------------------------- NOTE NOTE NOTE --------------------------
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//
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// the manual is not clear if this condition
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// applies to the first call to DdeInitialize from an application, or the
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// first call for a given callback !!!
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//
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this_instance->CBF_Flags=this_instance->CBF_Flags|APPCMD_FILTERINITS;
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TRACE(ddeml,"First application instance detected OK\n");
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// allocate new instance ID
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if ((err_no = IncrementInstanceId()) ) return err_no;
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} else {
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/* really need to chain the new one in to the latest here, but after checking conditions
|
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such as trying to start a conversation from an application trying to monitor */
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reference_inst = DDE_Handle_Table_Base;
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TRACE(ddeml,"Subsequent application instance - starting checks\n");
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while ( reference_inst->Next_Entry != NULL )
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{
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//
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// This set of tests will work if application uses same instance Id
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// at application level once allocated - which is what manual implies
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// should happen. If someone tries to be
|
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// clever (lazy ?) it will fail to pick up that later calls are for
|
||||
// the same application - should we trust them ?
|
||||
//
|
||||
if ( this_instance->Instance_id == reference_inst->Instance_id)
|
||||
{
|
||||
// Check 1 - must be same Client-only state
|
||||
|
||||
if ( this_instance->Client_only != reference_inst->Client_only)
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
|
||||
// Check 2 - cannot use 'Monitor' with any non-monitor modes
|
||||
|
||||
if ( this_instance->Monitor != reference_inst->Monitor)
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_INVALIDPARAMETER;
|
||||
}
|
||||
|
||||
// Check 3 - must supply different callback address
|
||||
|
||||
if ( this_instance->CallBack == reference_inst->CallBack)
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
}
|
||||
reference_inst = reference_inst->Next_Entry;
|
||||
}
|
||||
// All cleared, add to chain
|
||||
|
||||
TRACE(ddeml,"Application Instance checks finished\n");
|
||||
if ((err_no = IncrementInstanceId())) return err_no;
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,0)) return DMLERR_SYS_ERROR;
|
||||
reference_inst->Next_Entry = this_instance;
|
||||
}
|
||||
pidInst = (LPDWORD)this_instance->Instance_id;
|
||||
TRACE(ddeml,"New application instance processing finished OK\n");
|
||||
} else {
|
||||
/* Reinitialisation situation --- FIX */
|
||||
TRACE(ddeml,"reinitialisation of (%p,%p,0x%lx,%ld): stub\n",pidInst,pfnCallback,afCmd,ulRes);
|
||||
WaitForSingleObject(handle_mutex,1000);
|
||||
if ( (err_no=GetLastError()) != 0 )
|
||||
{
|
||||
|
||||
/* FIXME - needs refinement with popup for timeout, also is timeout interval OK */
|
||||
|
||||
ERR(ddeml,"WaitForSingleObject failed - handle list %li\n",err_no);
|
||||
HeapFree(GetProcessHeap(), 0, this_instance);
|
||||
return DMLERR_SYS_ERROR;
|
||||
}
|
||||
if (DDE_Handle_Table_Base == NULL )
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1)) return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
HeapFree(GetProcessHeap(), 0, this_instance); // finished - release heap space used as work store
|
||||
// can't reinitialise if we have initialised nothing !!
|
||||
reference_inst = DDE_Handle_Table_Base;
|
||||
/* must first check if we have been given a valid instance to re-initialise !! how do we do that ? */
|
||||
while ( reference_inst->Next_Entry != NULL )
|
||||
{
|
||||
if ( pidInst == reference_inst->Instance_id && pfnCallback == reference_inst->CallBack )
|
||||
{
|
||||
// Check 1 - cannot change client-only mode if set via APPCMD_CLIENTONLY
|
||||
|
||||
if ( reference_inst->Client_only )
|
||||
{
|
||||
if ((reference_inst->CBF_Flags & CBF_FAIL_ALLSVRXACTIONS) != CBF_FAIL_ALLSVRXACTIONS)
|
||||
{
|
||||
// i.e. Was set to Client-only and through APPCMD_CLIENTONLY
|
||||
|
||||
if ( ! ( afCmd & APPCMD_CLIENTONLY))
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
}
|
||||
}
|
||||
// Check 2 - cannot change monitor modes
|
||||
|
||||
if ( this_instance->Monitor != reference_inst->Monitor)
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
|
||||
// Check 3 - trying to set Client-only via APPCMD when not set so previously
|
||||
|
||||
if (( afCmd&APPCMD_CLIENTONLY) && ! reference_inst->Client_only )
|
||||
{
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
return DMLERR_DLL_USAGE;
|
||||
}
|
||||
}
|
||||
}
|
||||
// All checked - change relevant flags
|
||||
|
||||
reference_inst->CBF_Flags = this_instance->CBF_Flags;
|
||||
reference_inst->Client_only = this_instance->Client_only;
|
||||
reference_inst->Monitor_flags = this_instance->Monitor_flags;
|
||||
if ( Release_reserved_mutex(handle_mutex,"handle_mutex",0,1))
|
||||
return DMLERR_SYS_ERROR;
|
||||
}
|
||||
|
||||
return DMLERR_NO_ERROR;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue