Mercurial > projects > dwt-linux
annotate dwt/internal/Library.d @ 10:63c023465156
moved from org.eclipse.swt to dwt
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 05 Jan 2008 17:58:37 +0100 |
| parents | ad2b69216039 |
| children | 8f049b136add |
| rev | line source |
|---|---|
| 0 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 *******************************************************************************/ | |
|
10
63c023465156
moved from org.eclipse.swt to dwt
Frank Benoit <benoit@tionex.de>
parents:
9
diff
changeset
|
11 module dwt.internal.Library; |
| 0 | 12 |
| 13 import tango.util.Convert; | |
| 14 | |
| 15 public class Library { | |
| 16 | |
| 17 /* SWT Version - Mmmm (M=major, mmm=minor) */ | |
| 18 | |
| 19 /** | |
| 20 * SWT Major version number (must be >= 0) | |
| 21 */ | |
| 22 static const int MAJOR_VERSION = 3; | |
| 23 | |
| 24 /** | |
| 25 * SWT Minor version number (must be in the range 0..999) | |
| 26 */ | |
| 27 static const int MINOR_VERSION = 346; | |
| 28 | |
| 29 /** | |
| 30 * SWT revision number (must be >= 0) | |
| 31 */ | |
| 32 static const int REVISION = 0; | |
| 33 | |
| 34 /** | |
| 35 * The JAVA and SWT versions | |
| 36 */ | |
| 37 //public static const int JAVA_VERSION; | |
| 38 public static const int SWT_VERSION; | |
| 39 | |
| 40 version( linux ){ | |
| 41 static const char[] SEPARATOR = "\n"; | |
| 42 } | |
| 43 else { | |
| 44 static assert( false, "only linux supported for this port" ); | |
| 45 } | |
| 46 | |
| 47 | |
| 48 static this(){ | |
| 49 //SEPARATOR = System.getProperty("file.separator"); | |
| 50 //JAVA_VERSION = parseVersion(System.getProperty("java.version")); | |
| 51 SWT_VERSION = buildSWT_VERSION(MAJOR_VERSION, MINOR_VERSION); | |
| 52 } | |
| 53 | |
| 54 static int parseVersion(char[] aVersion) { | |
| 55 if (aVersion == null) return 0; | |
| 56 int major = 0, minor = 0, micro = 0; | |
| 57 int length = aVersion.length, index = 0, start = 0; | |
| 58 bool isDigit( char c ){ | |
| 59 return c >= '0' && c <= '9'; | |
| 60 } | |
| 61 while (index < length && isDigit(aVersion[index])) index++; | |
| 62 try { | |
| 63 if (start < length) major = to!(int)( aVersion[start .. index] ); | |
| 64 } catch (ConversionException e) {} | |
| 65 start = ++index; | |
| 66 while (index < length && isDigit(aVersion[index])) index++; | |
| 67 try { | |
| 68 if (start < length) minor = to!(int)(aVersion[start .. index]); | |
| 69 } catch (ConversionException e) {} | |
| 70 start = ++index; | |
| 71 while (index < length && isDigit(aVersion[index])) index++; | |
| 72 try { | |
| 73 if (start < length) micro = to!(int)(aVersion[start .. index]); | |
| 74 } catch (ConversionException e) {} | |
| 75 return buildJAVA_VERSION(major, minor, micro); | |
| 76 } | |
| 77 | |
| 78 /** | |
| 79 * Returns the Java version number as an integer. | |
| 80 * | |
| 81 * @param major | |
| 82 * @param minor | |
| 83 * @param micro | |
| 84 * @return the version | |
| 85 */ | |
| 86 public static int buildJAVA_VERSION (int major, int minor, int micro) { | |
| 87 return (major << 16) + (minor << 8) + micro; | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * Returns the SWT version number as an integer. | |
| 92 * | |
| 93 * @param major | |
| 94 * @param minor | |
| 95 * @return the version | |
| 96 */ | |
| 97 public static int buildSWT_VERSION (int major, int minor) { | |
| 98 return major * 1000 + minor; | |
| 99 } | |
| 100 /+ PORTING_LEFT | |
| 101 static bool extract (char[] fileName, char[] mappedName) { | |
| 102 FileOutputStream os = null; | |
| 103 InputStream is = null; | |
| 104 File file = new File(fileName); | |
| 105 try { | |
| 106 if (!file.exists ()) { | |
| 107 is = Library.class.getResourceAsStream ("/" + mappedName); //$NON-NLS-1$ | |
| 108 if (is != null) { | |
| 109 int read; | |
| 110 byte [] buffer = new byte [4096]; | |
| 111 os = new FileOutputStream (fileName); | |
| 112 while ((read = is.read (buffer)) != -1) { | |
| 113 os.write(buffer, 0, read); | |
| 114 } | |
| 115 os.close (); | |
| 116 is.close (); | |
| 117 if (!Platform.PLATFORM.equals ("win32")) { //$NON-NLS-1$ | |
| 118 try { | |
| 119 Runtime.getRuntime ().exec (new String []{"chmod", "755", fileName}).waitFor(); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 120 } catch (Throwable e) {} | |
| 121 } | |
| 122 if (load (fileName)) return true; | |
| 123 } | |
| 124 } | |
| 125 } catch (Throwable e) { | |
| 126 try { | |
| 127 if (os != null) os.close (); | |
| 128 } catch (IOException e1) {} | |
| 129 try { | |
| 130 if (is != null) is.close (); | |
| 131 } catch (IOException e1) {} | |
| 132 } | |
| 133 if (file.exists ()) file.delete (); | |
| 134 return false; | |
| 135 } | |
| 136 | |
| 137 static bool load (char[] libName) { | |
| 138 try { | |
| 139 if (libName.indexOf (SEPARATOR) != -1) { | |
| 140 System.load (libName); | |
| 141 } else { | |
| 142 System.loadLibrary (libName); | |
| 143 } | |
| 144 return true; | |
| 145 } catch (UnsatisfiedLinkError e) {} | |
| 146 return false; | |
| 147 } | |
| 148 | |
| 149 /** | |
| 150 * Loads the shared library that matches the version of the | |
| 151 * Java code which is currently running. SWT shared libraries | |
| 152 * follow an encoding scheme where the major, minor and revision | |
| 153 * numbers are embedded in the library name and this along with | |
| 154 * <code>name</code> is used to load the library. If this fails, | |
| 155 * <code>name</code> is used in another attempt to load the library, | |
| 156 * this time ignoring the SWT version encoding scheme. | |
| 157 * | |
| 158 * @param name the name of the library to load | |
| 159 */ | |
| 160 public static void loadLibrary (char[] name) { | |
| 161 loadLibrary (name, true); | |
| 162 } | |
| 163 | |
| 164 /** | |
| 165 * Loads the shared library that matches the version of the | |
| 166 * Java code which is currently running. SWT shared libraries | |
| 167 * follow an encoding scheme where the major, minor and revision | |
| 168 * numbers are embedded in the library name and this along with | |
| 169 * <code>name</code> is used to load the library. If this fails, | |
| 170 * <code>name</code> is used in another attempt to load the library, | |
| 171 * this time ignoring the SWT version encoding scheme. | |
| 172 * | |
| 173 * @param name the name of the library to load | |
| 174 * @param mapName true if the name should be mapped, false otherwise | |
| 175 */ | |
| 176 public static void loadLibrary (char[] name, boolean mapName) { | |
| 177 | |
| 178 /* Compute the library name and mapped name */ | |
| 179 String libName1, libName2, mappedName1, mappedName2; | |
| 180 if (mapName) { | |
| 181 String version = System.getProperty ("swt.version"); //$NON-NLS-1$ | |
| 182 if (version == null) { | |
| 183 version = "" + MAJOR_VERSION; //$NON-NLS-1$ | |
| 184 /* Force 3 digits in minor version number */ | |
| 185 if (MINOR_VERSION < 10) { | |
| 186 version += "00"; //$NON-NLS-1$ | |
| 187 } else { | |
| 188 if (MINOR_VERSION < 100) version += "0"; //$NON-NLS-1$ | |
| 189 } | |
| 190 version += MINOR_VERSION; | |
| 191 /* No "r" until first revision */ | |
| 192 if (REVISION > 0) version += "r" + REVISION; //$NON-NLS-1$ | |
| 193 } | |
| 194 libName1 = name + "-" + Platform.PLATFORM + "-" + version; //$NON-NLS-1$ //$NON-NLS-2$ | |
| 195 libName2 = name + "-" + Platform.PLATFORM; //$NON-NLS-1$ | |
| 196 mappedName1 = System.mapLibraryName (libName1); | |
| 197 mappedName2 = System.mapLibraryName (libName2); | |
| 198 } else { | |
| 199 libName1 = libName2 = mappedName1 = mappedName2 = name; | |
| 200 } | |
| 201 | |
| 202 /* Try loading library from swt library path */ | |
| 203 String path = System.getProperty ("swt.library.path"); //$NON-NLS-1$ | |
| 204 if (path != null) { | |
| 205 path = new File (path).getAbsolutePath (); | |
| 206 if (load (path + SEPARATOR + mappedName1)) return; | |
| 207 if (mapName && load (path + SEPARATOR + mappedName2)) return; | |
| 208 } | |
| 209 | |
| 210 /* Try loading library from java library path */ | |
| 211 if (load (libName1)) return; | |
| 212 if (mapName && load (libName2)) return; | |
| 213 | |
| 214 /* Try loading library from the tmp directory if swt library path is not specified */ | |
| 215 if (path == null) { | |
| 216 path = System.getProperty ("java.io.tmpdir"); //$NON-NLS-1$ | |
| 217 path = new File (path).getAbsolutePath (); | |
| 218 if (load (path + SEPARATOR + mappedName1)) return; | |
| 219 if (mapName && load (path + SEPARATOR + mappedName2)) return; | |
| 220 } | |
| 221 | |
| 222 /* Try extracting and loading library from jar */ | |
| 223 if (path != null) { | |
| 224 if (extract (path + SEPARATOR + mappedName1, mappedName1)) return; | |
| 225 if (mapName && extract (path + SEPARATOR + mappedName2, mappedName2)) return; | |
| 226 } | |
| 227 | |
| 228 /* Failed to find the library */ | |
| 229 throw new UnsatisfiedLinkError ("no " + libName1 + " or " + libName2 + " in swt.library.path, java.library.path or the jar file"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
| 230 } | |
| 231 +/ | |
| 232 } |