|
1 /* |
|
2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Implementation of array of variable size elements on global chunk |
|
15 * |
|
16 */ |
|
17 |
|
18 #include "mpxmediadataarray.h" |
|
19 #include "mpxheapmanager.h" |
|
20 #include "mpxdata.h" |
|
21 |
|
22 #define ITEM(x,y) RMPXHeapManager::Ptr<RMPXMediaDataItem>(x,y) |
|
23 |
|
24 // ----------------------------------------------------------------------------- |
|
25 // RMPXMediaDataItemArray::Append |
|
26 // ----------------------------------------------------------------------------- |
|
27 // |
|
28 TInt RMPXMediaDataItemArray::Append( |
|
29 TUint aClientHandle, |
|
30 const TMPXAttribute& aAttr, |
|
31 TMPXAttributeType aAttrType, |
|
32 const TDesC8& aData) |
|
33 { |
|
34 MPX_ASSERT(aClientHandle); |
|
35 // |
|
36 TInt r=KErrNone; |
|
37 RMPXMediaDataItem* item=NewItem(aClientHandle,aAttr,aAttrType,aData); |
|
38 if (item) |
|
39 { |
|
40 RMPXDataItemArray::Append(aClientHandle,*item); |
|
41 } |
|
42 else |
|
43 { |
|
44 r=KErrNoMemory; |
|
45 } |
|
46 return r; |
|
47 } |
|
48 |
|
49 |
|
50 // ----------------------------------------------------------------------------- |
|
51 // RMPXMediaDataItemArray::Set |
|
52 // ----------------------------------------------------------------------------- |
|
53 // |
|
54 TInt RMPXMediaDataItemArray::Set( |
|
55 TUint aClientHandle, |
|
56 const TMPXAttribute& aAttr, |
|
57 TMPXAttributeType aAttrType, |
|
58 const TDesC8& aData, |
|
59 TInt aIndex) |
|
60 { |
|
61 TInt r=KErrNone; |
|
62 RMPXMediaDataItem* item=NewItem(aClientHandle,aAttr,aAttrType,aData); |
|
63 if (item) |
|
64 { |
|
65 RMPXDataItemArray::Set(aClientHandle,*item,aIndex); |
|
66 } |
|
67 else |
|
68 { |
|
69 r=KErrNoMemory; |
|
70 } |
|
71 return r; |
|
72 } |
|
73 |
|
74 // ----------------------------------------------------------------------------- |
|
75 // RMPXMediaDataItemArray::RMPXMediaDataItemArray |
|
76 // ----------------------------------------------------------------------------- |
|
77 // |
|
78 TInt RMPXMediaDataItemArray::Insert( |
|
79 TUint aClientHandle, |
|
80 const TMPXAttribute& aAttr, |
|
81 TMPXAttributeType aAttrType, |
|
82 const TDesC8& aData, |
|
83 TInt aIndex) |
|
84 { |
|
85 TInt r=KErrNone; |
|
86 RMPXMediaDataItem* item=NewItem(aClientHandle,aAttr,aAttrType,aData); |
|
87 if (item) |
|
88 { |
|
89 RMPXDataItemArray::Insert(aClientHandle,*item,aIndex); |
|
90 } |
|
91 else |
|
92 { |
|
93 r=KErrNoMemory; |
|
94 } |
|
95 return r; |
|
96 } |
|
97 |
|
98 // ----------------------------------------------------------------------------- |
|
99 // RMPXMediaDataItemArray::Index |
|
100 // ----------------------------------------------------------------------------- |
|
101 // |
|
102 TInt RMPXMediaDataItemArray::Index(TUint aClientHandle,const TMPXAttribute& aAttr) |
|
103 { |
|
104 TInt index( KErrNotFound ); |
|
105 RMPXMediaDataItem* item=NULL; |
|
106 |
|
107 if (iFirstItemOffset) |
|
108 { |
|
109 item=ITEM(aClientHandle,iFirstItemOffset); |
|
110 while(item) |
|
111 { |
|
112 index++; |
|
113 if (item->Attribute()==aAttr) |
|
114 { |
|
115 // |
|
116 // Found it, so break outer of the loop, but first store |
|
117 // the current position in case an index based query will |
|
118 // follow (e,g, for data, type etc.) |
|
119 // |
|
120 iIndex=index; |
|
121 iPos=RMPXHeapManager::Offset(aClientHandle,item); |
|
122 break; |
|
123 } |
|
124 TInt next=item->NextOffset(); |
|
125 item=next?ITEM(aClientHandle,next):NULL; |
|
126 } |
|
127 } |
|
128 return item?index:KErrNotFound; |
|
129 } |
|
130 |
|
131 // ----------------------------------------------------------------------------- |
|
132 // RMPXMediaDataItemArray::NewItem |
|
133 // ----------------------------------------------------------------------------- |
|
134 // |
|
135 RMPXMediaDataItem* RMPXMediaDataItemArray::NewItem( |
|
136 TUint aClientHandle, |
|
137 const TMPXAttribute& aAttr, |
|
138 TMPXAttributeType aAttrType, |
|
139 const TDesC8& aData) |
|
140 { |
|
141 MPX_ASSERT(aClientHandle); |
|
142 // |
|
143 RMPXHeapManager& m=RMPXHeapManager::HeapManager(aClientHandle); |
|
144 TAny* ptr=m.Alloc(aClientHandle, sizeof(RMPXMediaDataItem) + aData.Size()); |
|
145 RMPXMediaDataItem* item(NULL); |
|
146 if (ptr) |
|
147 { |
|
148 //Alloc media data item |
|
149 item = new(ptr)RMPXMediaDataItem(); |
|
150 //Copy data to RMPXMediaDataItem |
|
151 item->Copy(aClientHandle,aData); |
|
152 item->SetAttribute(aAttr,aAttrType); |
|
153 } |
|
154 return item; |
|
155 } |
|
156 |
|
157 // ----------------------------------------------------------------------------- |
|
158 // RMPXDataItemArray::Copy |
|
159 // ----------------------------------------------------------------------------- |
|
160 // |
|
161 TInt RMPXMediaDataItemArray::Copy( |
|
162 TUint aClientHandle, |
|
163 const RMPXMediaDataItemArray& aArray) |
|
164 { |
|
165 Reset(aClientHandle); // Clear existing data |
|
166 TInt r=KErrNone; |
|
167 TInt first=aArray.iFirstItemOffset; |
|
168 if (first) |
|
169 { |
|
170 RMPXMediaDataItem* item=ITEM(aClientHandle,first); |
|
171 while(item) |
|
172 { |
|
173 MMPXData* d=MMPXData::Data(aClientHandle, |
|
174 item->Buf(aClientHandle), |
|
175 item->Size()); |
|
176 if (d) |
|
177 { |
|
178 // It's a global object. e.g. media or media array, so we need to copy |
|
179 // that and place the handle into the buffer |
|
180 // |
|
181 MMPXData* newd=NULL; |
|
182 TRAP(r,newd=MMPXData::NewL(aClientHandle,*d)); // will end up recursive |
|
183 if (r==KErrNone) |
|
184 { |
|
185 // Create the data: a buffer of 8 bytes |
|
186 // |
|
187 const TInt KMediaStreamLen=sizeof(MMPXData::TMPXObjectType)+sizeof(TUint); |
|
188 TBuf8<KMediaStreamLen> newbuf; |
|
189 // |
|
190 TUint* ptr=(TUint*)newbuf.Ptr(); // pointer to the new (empty) buffer |
|
191 TUint* oldPtr=(TUint*)item->Buf(aClientHandle); // pointer to the old data |
|
192 // |
|
193 *ptr=*oldPtr; // the TMPXObjectType |
|
194 *++ptr=newd->DataHandle(aClientHandle); // the data: handle to this new data |
|
195 // |
|
196 newbuf.SetLength(KMediaStreamLen); |
|
197 // |
|
198 r=Append(aClientHandle,item->Attribute(),item->Type(),newbuf); |
|
199 // |
|
200 // Don't need to call newd->Release(aClientHandle) currently, since the Append() |
|
201 // would have created a ref count of 1, and the MMPXData::NewL() doesn't. |
|
202 // |
|
203 } |
|
204 } |
|
205 else |
|
206 { |
|
207 // Regular streamed object, so we can duplicate it by just copying the bytes |
|
208 // in an Append() |
|
209 // |
|
210 r=Append(aClientHandle,item->Attribute(),item->Type(),item->Data(aClientHandle)); |
|
211 } |
|
212 item=item->NextOffset()&&r==KErrNone?ITEM(aClientHandle,item->NextOffset()):NULL; |
|
213 } |
|
214 } |
|
215 return r; |
|
216 } |
|
217 |
|
218 // End of file |
|
219 |