#include "config.h"
#include "JSContextRef.h"
#include "JSContextRefPrivate.h"
#include "APICast.h"
#include "InitializeThreading.h"
#include "JSCallbackObject.h"
#include "JSClassRef.h"
#include "JSGlobalObject.h"
#include "JSObject.h"
#include <wtf/Platform.h>
#if OS(DARWIN)
#include <mach-o/dyld.h>
static const int32_t webkitFirstVersionWithConcurrentGlobalContexts = 0x2100500; #endif
using namespace JSC;
JSContextGroupRef JSContextGroupCreate()
{
initializeThreading();
return toRef(JSGlobalData::createNonDefault().releaseRef());
}
JSContextGroupRef JSContextGroupRetain(JSContextGroupRef group)
{
toJS(group)->ref();
return group;
}
void JSContextGroupRelease(JSContextGroupRef group)
{
toJS(group)->deref();
}
JSGlobalContextRef JSGlobalContextCreate(JSClassRef globalObjectClass)
{
initializeThreading();
#if OS(DARWIN)
#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
if (NSVersionOfLinkTimeLibrary("JavaScriptCore") <= webkitFirstVersionWithConcurrentGlobalContexts) {
#else
{
#endif
JSLock lock(LockForReal);
return JSGlobalContextCreateInGroup(toRef(&JSGlobalData::sharedInstance()), globalObjectClass);
}
#endif // OS(DARWIN)
return JSGlobalContextCreateInGroup(0, globalObjectClass);
}
JSGlobalContextRef JSGlobalContextCreateInGroup(JSContextGroupRef group, JSClassRef globalObjectClass)
{
initializeThreading();
JSLock lock(LockForReal);
RefPtr<JSGlobalData> globalData = group ? PassRefPtr<JSGlobalData>(toJS(group)) : JSGlobalData::createNonDefault();
APIEntryShim entryShim(globalData.get(), false);
#if ENABLE(JSC_MULTIPLE_THREADS)
globalData->makeUsableFromMultipleThreads();
#endif
if (!globalObjectClass) {
JSGlobalObject* globalObject = new (globalData.get()) JSGlobalObject;
return JSGlobalContextRetain(toGlobalRef(globalObject->globalExec()));
}
JSGlobalObject* globalObject = new (globalData.get()) JSCallbackObject<JSGlobalObject>(globalObjectClass);
ExecState* exec = globalObject->globalExec();
JSValue prototype = globalObjectClass->prototype(exec);
if (!prototype)
prototype = jsNull();
globalObject->resetPrototype(prototype);
return JSGlobalContextRetain(toGlobalRef(exec));
}
JSGlobalContextRef JSGlobalContextRetain(JSGlobalContextRef ctx)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
JSGlobalData& globalData = exec->globalData();
gcProtect(exec->dynamicGlobalObject());
globalData.ref();
return ctx;
}
void JSGlobalContextRelease(JSGlobalContextRef ctx)
{
ExecState* exec = toJS(ctx);
JSLock lock(exec);
JSGlobalData& globalData = exec->globalData();
IdentifierTable* savedIdentifierTable = setCurrentIdentifierTable(globalData.identifierTable);
gcUnprotect(exec->dynamicGlobalObject());
if (globalData.refCount() == 2) { globalData.heap.destroy();
} else
globalData.heap.collectAllGarbage();
globalData.deref();
setCurrentIdentifierTable(savedIdentifierTable);
}
JSObjectRef JSContextGetGlobalObject(JSContextRef ctx)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
return toRef(exec->lexicalGlobalObject()->toThisObject(exec));
}
JSContextGroupRef JSContextGetGroup(JSContextRef ctx)
{
ExecState* exec = toJS(ctx);
return toRef(&exec->globalData());
}
JSGlobalContextRef JSContextGetGlobalContext(JSContextRef ctx)
{
ExecState* exec = toJS(ctx);
APIEntryShim entryShim(exec);
return toGlobalRef(exec->lexicalGlobalObject()->globalExec());
}