Mercurial > projects > dwt-linux
annotate dwt/browser/InputStream.d @ 286:44258e0b6687
More fixes for xpcom
| author | John Reimer<terminal.node@gmail.com> |
|---|---|
| date | Tue, 05 Aug 2008 10:11:58 -0700 |
| parents | 93409d9838c5 |
| children | eec6ddb07873 |
| rev | line source |
|---|---|
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1 /******************************************************************************* |
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2 * Copyright (c) 2003, 2007 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 *******************************************************************************/ |
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11 module dwt.browser.InputStream; |
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12 |
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13 import dwt.dwthelper.utils; |
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14 |
| 286 | 15 import dwt.internal.C; |
| 16 import dwt.internal.mozilla.XPCOM; | |
| 17 import dwt.internal.mozilla.XPCOMObject; | |
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18 import dwt.internal.mozilla.nsID; |
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19 import dwt.internal.mozilla.nsIInputStream; |
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20 import dwt.internal.mozilla.nsISupports; |
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21 |
| 286 | 22 class InputStream { |
| 23 XPCOMObject inputStream; | |
| 24 int refCount = 0; | |
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25 |
| 286 | 26 byte[] buffer; |
| 27 int index = 0; | |
| 28 | |
| 29 InputStream (byte[] buffer) { | |
| 30 this.buffer = buffer; | |
| 31 index = 0; | |
| 32 createCOMInterfaces (); | |
| 33 } | |
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34 |
| 286 | 35 int AddRef () { |
| 36 refCount++; | |
| 37 return refCount; | |
| 38 } | |
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39 |
| 286 | 40 void createCOMInterfaces () { |
| 41 /* Create each of the interfaces that this object implements */ | |
| 42 inputStream = new XPCOMObject (new int[] {2, 0, 0, 0, 1, 3, 4, 1}) { | |
| 43 public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);} | |
| 44 public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();} | |
| 45 public int /*long*/ method2 (int /*long*/[] args) {return Release ();} | |
| 46 public int /*long*/ method3 (int /*long*/[] args) {return Close ();} | |
| 47 public int /*long*/ method4 (int /*long*/[] args) {return Available (args[0]);} | |
| 48 public int /*long*/ method5 (int /*long*/[] args) {return Read (args[0], (int)/*64*/args[1], args[2]);} | |
| 49 public int /*long*/ method6 (int /*long*/[] args) {return ReadSegments (args[0], args[1], (int)/*64*/args[2], args[3]);} | |
| 50 public int /*long*/ method7 (int /*long*/[] args) {return IsNonBlocking (args[0]);} | |
| 51 }; | |
| 52 } | |
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53 |
| 286 | 54 void disposeCOMInterfaces () { |
| 55 if (inputStream !is null) { | |
| 56 inputStream.dispose (); | |
| 57 inputStream = null; | |
| 58 } | |
| 59 } | |
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60 |
| 286 | 61 int /*long*/ getAddress () { |
| 62 return inputStream.getAddress (); | |
| 63 } | |
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64 |
| 286 | 65 int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) { |
| 66 if (riid is 0 || ppvObject is 0) return XPCOM.NS_ERROR_NO_INTERFACE; | |
| 67 nsID guid = new nsID (); | |
| 68 XPCOM.memmove (guid, riid, nsID.sizeof); | |
| 69 | |
| 70 if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) { | |
| 71 XPCOM.memmove (ppvObject, new int /*long*/[] {inputStream.getAddress ()}, C.PTR_SIZEOF); | |
| 72 AddRef (); | |
| 73 return XPCOM.NS_OK; | |
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74 } |
| 286 | 75 if (guid.Equals (nsIInputStream.NS_IINPUTSTREAM_IID)) { |
| 76 XPCOM.memmove (ppvObject, new int /*long*/[] {inputStream.getAddress ()}, C.PTR_SIZEOF); | |
| 77 AddRef (); | |
| 78 return XPCOM.NS_OK; | |
| 79 } | |
| 80 XPCOM.memmove (ppvObject, new int /*long*/[] {0}, C.PTR_SIZEOF); | |
| 81 return XPCOM.NS_ERROR_NO_INTERFACE; | |
| 82 } | |
| 83 | |
| 84 int Release () { | |
| 85 refCount--; | |
| 86 if (refCount is 0) disposeCOMInterfaces (); | |
| 87 return refCount; | |
| 88 } | |
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89 |
| 286 | 90 /* nsIInputStream implementation */ |
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91 |
| 286 | 92 int Close () { |
| 93 buffer = null; | |
| 94 index = 0; | |
| 95 return XPCOM.NS_OK; | |
| 96 } | |
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97 |
| 286 | 98 int Available (int /*long*/ _retval) { |
| 99 int available = buffer is null ? 0 : buffer.length - index; | |
| 100 XPCOM.memmove (_retval, new int[] {available}, 4); | |
| 101 return XPCOM.NS_OK; | |
| 102 } | |
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103 |
| 286 | 104 int Read(int /*long*/ aBuf, int aCount, int /*long*/ _retval) { |
| 105 int max = Math.min (aCount, buffer is null ? 0 : buffer.length - index); | |
| 106 if (max > 0) { | |
| 107 byte[] src = new byte[max]; | |
| 108 System.arraycopy (buffer, index, src, 0, max); | |
| 109 XPCOM.memmove (aBuf, src, max); | |
| 110 index += max; | |
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111 } |
| 286 | 112 XPCOM.memmove(_retval, new int[] {max}, 4); |
| 113 return XPCOM.NS_OK; | |
| 114 } | |
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115 |
| 286 | 116 int ReadSegments (int /*long*/ aWriter, int /*long*/ aClosure, int aCount, int /*long*/ _retval) { |
| 117 int max = Math.min (aCount, buffer is null ? 0 : buffer.length - index); | |
| 118 int cnt = max; | |
| 119 while (cnt > 0) { | |
| 120 int[] aWriteCount = new int[1]; | |
| 121 int /*long*/ rc = XPCOM.Call (aWriter, getAddress (), aClosure, buffer, index, cnt, aWriteCount); | |
| 122 if (rc !is XPCOM.NS_OK) break; | |
| 123 index += aWriteCount[0]; | |
| 124 cnt -= aWriteCount[0]; | |
| 125 } | |
| 126 XPCOM.memmove (_retval, new int[] {max - cnt}, 4); | |
| 127 return XPCOM.NS_OK; | |
| 128 } | |
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129 |
| 286 | 130 int IsNonBlocking (int /*long*/ _retval) { |
| 131 /* blocking */ | |
| 132 XPCOM.memmove (_retval, new int[] {0}, 4); | |
| 133 return XPCOM.NS_OK; | |
| 134 } | |
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135 } |