1/**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the mingw-w64 runtime package.
4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5 */
6#ifndef __MSPUTILS_H_
7#define __MSPUTILS_H_
8
9#if _ATL_VER >= 0x0300
10#define DECLARE_VQI()
11#else
12#define DECLARE_VQI() STDMETHOD(QueryInterface)(REFIID iid,void **ppvObject) = 0; STDMETHOD_(ULONG,AddRef)() = 0; STDMETHOD_(ULONG,Release)() = 0;
13#endif
14
15#define MSP_(hr) (FAILED(hr)?MSP_ERROR:MSP_TRACE)
16
17extern __inline WINBOOL IsValidAggregatedMediaType(DWORD dwAggregatedMediaType) {
18 const DWORD dwAllPossibleMediaTypes = TAPIMEDIATYPE_AUDIO | TAPIMEDIATYPE_VIDEO | TAPIMEDIATYPE_DATAMODEM | TAPIMEDIATYPE_G3FAX | TAPIMEDIATYPE_MULTITRACK;
19 WINBOOL bValidMediaType = FALSE;
20 if((0==(dwAggregatedMediaType & dwAllPossibleMediaTypes)) || (0!=(dwAggregatedMediaType & (~dwAllPossibleMediaTypes)))) {
21 bValidMediaType = FALSE;
22 } else {
23 bValidMediaType = TRUE;
24 }
25 return bValidMediaType;
26}
27
28extern __inline WINBOOL IsSingleMediaType(DWORD dwMediaType) { return !((dwMediaType==0) || ((dwMediaType & (dwMediaType - 1))!=0)); }
29extern __inline WINBOOL IsValidSingleMediaType(DWORD dwMediaType,DWORD dwMask) { return IsSingleMediaType(dwMediaType) && ((dwMediaType & dwMask)==dwMediaType); }
30
31const DWORD INITIAL = 8;
32const DWORD DELTA = 8;
33
34template <class T,DWORD dwInitial = INITIAL,DWORD dwDelta = DELTA> class CMSPArray {
35protected:
36 T *m_aT;
37 int m_nSize;
38 int m_nAllocSize;
39public:
40 CMSPArray() : m_aT(NULL),m_nSize(0),m_nAllocSize(0) { }
41 ~CMSPArray() { RemoveAll(); }
42 int GetSize() const { return m_nSize; }
43 WINBOOL Grow() {
44 T *aT;
45 int nNewAllocSize = (m_nAllocSize==0) ? dwInitial : (m_nSize + DELTA);
46 aT = (T *)realloc(m_aT,nNewAllocSize *sizeof(T));
47 if(!aT) return FALSE;
48 m_nAllocSize = nNewAllocSize;
49 m_aT = aT;
50 return TRUE;
51 }
52 WINBOOL Add(T &t) {
53 if(m_nSize==m_nAllocSize) {
54 if(!Grow()) return FALSE;
55 }
56 m_nSize++;
57 SetAtIndex(m_nSize - 1,t);
58 return TRUE;
59 }
60 WINBOOL Remove(T &t) {
61 int nIndex = Find(t);
62 if(nIndex==-1) return FALSE;
63 return RemoveAt(nIndex);
64 }
65 WINBOOL RemoveAt(int nIndex) {
66 if(nIndex!=(m_nSize - 1))
67 memmove((void*)&m_aT[nIndex],(void*)&m_aT[nIndex + 1],(m_nSize - (nIndex + 1))*sizeof(T));
68 m_nSize--;
69 return TRUE;
70 }
71 void RemoveAll() {
72 if(m_nAllocSize > 0) {
73 free(m_aT);
74 m_aT = NULL;
75 m_nSize = 0;
76 m_nAllocSize = 0;
77 }
78 }
79 T &operator[] (int nIndex) const {
80 _ASSERTE(nIndex >= 0 && nIndex < m_nSize);
81 return m_aT[nIndex];
82 }
83 T *GetData() const { return m_aT; }
84 void SetAtIndex(int nIndex,T &t) {
85 _ASSERTE(nIndex >= 0 && nIndex < m_nSize);
86 m_aT[nIndex] = t;
87 }
88 int Find(T &t) const {
89 for(int i = 0;i < m_nSize;i++) {
90 if(m_aT[i]==t) return i;
91 }
92 return -1;
93 }
94};
95
96class CMSPCritSection {
97private:
98 CRITICAL_SECTION m_CritSec;
99public:
100 CMSPCritSection() { InitializeCriticalSection(&m_CritSec); }
101 ~CMSPCritSection() { DeleteCriticalSection(&m_CritSec); }
102 void Lock() { EnterCriticalSection(&m_CritSec); }
103 WINBOOL TryLock() { return TryEnterCriticalSection(&m_CritSec); }
104 void Unlock() { LeaveCriticalSection(&m_CritSec); }
105};
106
107class CLock {
108private:
109 CMSPCritSection &m_CriticalSection;
110public:
111 CLock(CMSPCritSection &CriticalSection) : m_CriticalSection(CriticalSection) {
112 m_CriticalSection.Lock();
113 }
114 ~CLock() { m_CriticalSection.Unlock(); }
115};
116
117class CCSLock {
118private:
119 CRITICAL_SECTION *m_pCritSec;
120public:
121 CCSLock(CRITICAL_SECTION *pCritSec) : m_pCritSec(pCritSec) {
122 EnterCriticalSection(m_pCritSec);
123 }
124 ~CCSLock() { LeaveCriticalSection(m_pCritSec); }
125};
126
127#ifndef CONTAINING_RECORD
128#define CONTAINING_RECORD(address,type,field) ((type *)((PCHAR)(address) - (ULONG_PTR)(&((type *)0)->field)))
129#endif
130
131#ifndef InitializeListHead
132#define InitializeListHead(ListHead) ((ListHead)->Flink = (ListHead)->Blink = (ListHead))
133#define IsListEmpty(ListHead) ((ListHead)->Flink==(ListHead))
134#define RemoveHeadList(ListHead) (ListHead)->Flink; {RemoveEntryList((ListHead)->Flink)}
135#define RemoveTailList(ListHead) (ListHead)->Blink; {RemoveEntryList((ListHead)->Blink)}
136#define RemoveEntryList(Entry) { PLIST_ENTRY _EX_Blink; PLIST_ENTRY _EX_Flink; _EX_Flink = (Entry)->Flink; _EX_Blink = (Entry)->Blink; _EX_Blink->Flink = _EX_Flink; _EX_Flink->Blink = _EX_Blink; }
137#define InsertTailList(ListHead,Entry) { PLIST_ENTRY _EX_Blink; PLIST_ENTRY _EX_ListHead; _EX_ListHead = (ListHead); _EX_Blink = _EX_ListHead->Blink; (Entry)->Flink = _EX_ListHead; (Entry)->Blink = _EX_Blink; _EX_Blink->Flink = (Entry); _EX_ListHead->Blink = (Entry); }
138#define InsertHeadList(ListHead,Entry) { PLIST_ENTRY _EX_Flink; PLIST_ENTRY _EX_ListHead; _EX_ListHead = (ListHead); _EX_Flink = _EX_ListHead->Flink; (Entry)->Flink = _EX_Flink; (Entry)->Blink = _EX_ListHead; _EX_Flink->Blink = (Entry); _EX_ListHead->Flink = (Entry); }
139
140WINBOOL IsNodeOnList(PLIST_ENTRY ListHead,PLIST_ENTRY Entry);
141#endif
142
143template <class T> ULONG MSPAddRefHelper (T *pMyThis) {
144 LOG((MSP_INFO,"MSPAddRefHelper - this = 0x%08x",pMyThis));
145 typedef CComAggObject<T> AggClass;
146 AggClass *p = CONTAINING_RECORD(pMyThis,AggClass,m_contained);
147 return p->AddRef();
148}
149
150template <class T> ULONG MSPReleaseHelper (T *pMyThis) {
151 LOG((MSP_INFO,"MSPReleaseHelper - this = 0x%08x",pMyThis));
152 typedef CComAggObject<T> AggClass;
153 AggClass *p = CONTAINING_RECORD(pMyThis,AggClass,m_contained);
154 return p->Release();
155}
156
157#include <objsafe.h>
158
159class CMSPObjectSafetyImpl : public IObjectSafety {
160public:
161 CMSPObjectSafetyImpl() : m_dwSafety(0) { }
162 enum {
163 SUPPORTED_SAFETY_OPTIONS = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA
164 };
165 STDMETHOD(SetInterfaceSafetyOptions)(REFIID riid,DWORD dwOptionSetMask,DWORD dwEnabledOptions) {
166 if((~SUPPORTED_SAFETY_OPTIONS & dwOptionSetMask)!=0) return E_FAIL;
167 IUnknown *pUnk = NULL;
168 HRESULT hr = QueryInterface(riid,(void**)&pUnk);
169 if(SUCCEEDED(hr)) {
170 pUnk->Release();
171 pUnk = NULL;
172 s_CritSection.Lock();
173 m_dwSafety = (dwEnabledOptions & dwOptionSetMask) | (m_dwSafety & ~dwOptionSetMask);
174 s_CritSection.Unlock();
175 }
176 return hr;
177 }
178 STDMETHOD(GetInterfaceSafetyOptions)(REFIID riid,DWORD *pdwSupportedOptions,DWORD *pdwEnabledOptions) {
179 if(IsBadWritePtr(pdwSupportedOptions,sizeof(DWORD)) || IsBadWritePtr(pdwEnabledOptions,sizeof(DWORD))) return E_POINTER;
180 *pdwSupportedOptions = 0;
181 *pdwEnabledOptions = 0;
182 IUnknown *pUnk = NULL;
183 HRESULT hr = QueryInterface(riid,(void**)&pUnk);
184 if(SUCCEEDED(hr)) {
185 pUnk->Release();
186 pUnk = NULL;
187 *pdwSupportedOptions = SUPPORTED_SAFETY_OPTIONS;
188 s_CritSection.Lock();
189 *pdwEnabledOptions = m_dwSafety;
190 s_CritSection.Unlock();
191 }
192 return hr;
193 }
194private:
195 DWORD m_dwSafety;
196 static CMSPCritSection s_CritSection;
197};
198
199#endif