| Index: trunk/phase3/includes/Init.php |
| — | — | @@ -0,0 +1,93 @@ |
| | 2 | +<?php |
| | 3 | + |
| | 4 | +/** |
| | 5 | + * Some functions that are useful during startup. |
| | 6 | + */ |
| | 7 | +class MWInit { |
| | 8 | + static $compilerVersion; |
| | 9 | + |
| | 10 | + /** |
| | 11 | + * Get the version of HipHop used to compile, or false if MediaWiki was not |
| | 12 | + * compiled. This works by having our build script insert a special function |
| | 13 | + * into the compiled code. |
| | 14 | + */ |
| | 15 | + static function getCompilerVersion() { |
| | 16 | + if ( self::$compilerVersion === null ) { |
| | 17 | + if ( self::functionExists( 'wfHipHopCompilerVersion' ) ) { |
| | 18 | + self::$compilerVersion = wfHipHopCompilerVersion(); |
| | 19 | + } else { |
| | 20 | + self::$compilerVersion = false; |
| | 21 | + } |
| | 22 | + } |
| | 23 | + return self::$compilerVersion; |
| | 24 | + } |
| | 25 | + |
| | 26 | + /** |
| | 27 | + * Returns true if we are running under HipHop, whether in compiled or |
| | 28 | + * interpreted mode. |
| | 29 | + */ |
| | 30 | + static function isHipHop() { |
| | 31 | + return function_exists( 'hphp_thread_set_warmup_enabled' ); |
| | 32 | + } |
| | 33 | + |
| | 34 | + /** |
| | 35 | + * Get a fully-qualified path for a source file relative to $IP. Including |
| | 36 | + * such a path under HipHop will force the file to be interpreted. This is |
| | 37 | + * useful for configuration files. |
| | 38 | + */ |
| | 39 | + static function interpretedPath( $file ) { |
| | 40 | + global $IP; |
| | 41 | + return "$IP/$file"; |
| | 42 | + } |
| | 43 | + |
| | 44 | + /** |
| | 45 | + * If we are running code compiled by HipHop, this will pass through the |
| | 46 | + * input path, assumed to be relative to $IP. If the code is interpreted, |
| | 47 | + * it will converted to a fully qualified path. It is necessary to use a |
| | 48 | + * path which is relative to $IP in order to make HipHop use its compiled |
| | 49 | + * code. |
| | 50 | + */ |
| | 51 | + static function compiledPath( $file ) { |
| | 52 | + global $IP; |
| | 53 | + |
| | 54 | + if ( defined( 'MW_COMPILED' ) ) { |
| | 55 | + return $file; |
| | 56 | + } else { |
| | 57 | + return "$IP/$file"; |
| | 58 | + } |
| | 59 | + } |
| | 60 | + |
| | 61 | + /** |
| | 62 | + * Determine whether a class exists, using a method which works under HipHop. |
| | 63 | + * |
| | 64 | + * Note that it's not possible to implement this with any variant of |
| | 65 | + * class_exists(), because class_exists() returns false for classes which |
| | 66 | + * are compiled in. |
| | 67 | + * |
| | 68 | + * Calling class_exists() on a literal string causes the class to be made |
| | 69 | + * "volatile", which means (as of March 2011) that the class is broken and |
| | 70 | + * can't be used at all. So don't do that. See |
| | 71 | + * https://github.com/facebook/hiphop-php/issues/314 |
| | 72 | + */ |
| | 73 | + static function classExists( $class ) { |
| | 74 | + try { |
| | 75 | + $r = new ReflectionClass( $class ); |
| | 76 | + } catch( ReflectionException $r ) { |
| | 77 | + $r = false; |
| | 78 | + } |
| | 79 | + return $r !== false; |
| | 80 | + } |
| | 81 | + |
| | 82 | + /** |
| | 83 | + * Determine whether a function exists, using a method which works under |
| | 84 | + * HipHop. |
| | 85 | + */ |
| | 86 | + static function functionExists( $function ) { |
| | 87 | + try { |
| | 88 | + $r = new ReflectionFunction( $function ); |
| | 89 | + } catch( ReflectionException $r ) { |
| | 90 | + $r = false; |
| | 91 | + } |
| | 92 | + return $r !== false; |
| | 93 | + } |
| | 94 | +} |
| Property changes on: trunk/phase3/includes/Init.php |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| 1 | 95 | + native |