/* | |
* Copyright (C) 2007 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
* its contributors may be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#import <wtf/Assertions.h> | |
#import <dlfcn.h> | |
#define SOFT_LINK_LIBRARY(lib) \ | |
static void* lib##Library() \ | |
{ \ | |
static void* dylib = dlopen("/usr/lib/" #lib ".dylib", RTLD_NOW); \ | |
ASSERT(dylib); \ | |
return dylib; \ | |
} | |
#define SOFT_LINK_FRAMEWORK(framework) \ | |
static void* framework##Library() \ | |
{ \ | |
static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \ | |
ASSERT(frameworkLibrary); \ | |
return frameworkLibrary; \ | |
} | |
#define SOFT_LINK(framework, functionName, resultType, parameterDeclarations, parameterNames) \ | |
static resultType init##functionName parameterDeclarations; \ | |
static resultType (*softLink##functionName) parameterDeclarations = init##functionName; \ | |
\ | |
static resultType init##functionName parameterDeclarations \ | |
{ \ | |
softLink##functionName = (resultType (*) parameterDeclarations) dlsym(framework##Library(), #functionName); \ | |
ASSERT(softLink##functionName); \ | |
return softLink##functionName parameterNames; \ | |
}\ | |
\ | |
inline resultType functionName parameterDeclarations \ | |
{\ | |
return softLink##functionName parameterNames; \ | |
} | |
#define SOFT_LINK_CLASS(framework, className) \ | |
static Class init##className(); \ | |
static Class (*get##className##Class)() = init##className; \ | |
static Class class##className; \ | |
\ | |
static Class className##Function() \ | |
{ \ | |
return class##className; \ | |
}\ | |
\ | |
static Class init##className() \ | |
{ \ | |
framework##Library(); \ | |
class##className = objc_getClass(#className); \ | |
ASSERT(class##className); \ | |
get##className##Class = className##Function; \ | |
return class##className; \ | |
} | |
#define SOFT_LINK_POINTER(framework, name, type) \ | |
static type init##name(); \ | |
static type (*get##name)() = init##name; \ | |
static type pointer##name; \ | |
\ | |
static type name##Function() \ | |
{ \ | |
return pointer##name; \ | |
}\ | |
\ | |
static type init##name() \ | |
{ \ | |
void** pointer = static_cast<void**>(dlsym(framework##Library(), #name)); \ | |
ASSERT(pointer); \ | |
pointer##name = static_cast<type>(*pointer); \ | |
get##name = name##Function; \ | |
return pointer##name; \ | |
} | |
#define SOFT_LINK_CONSTANT(framework, name, type) \ | |
static type init##name(); \ | |
static type (*get##name)() = init##name; \ | |
static type constant##name; \ | |
\ | |
static type name##Function() \ | |
{ \ | |
return constant##name; \ | |
}\ | |
\ | |
static type init##name() \ | |
{ \ | |
void* constant = dlsym(framework##Library(), #name); \ | |
ASSERT(constant); \ | |
constant##name = *static_cast<type*>(constant); \ | |
get##name = name##Function; \ | |
return constant##name; \ | |
} |