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#include "WAVM/Runtime/Runtime.h"
#include "RuntimePrivate.h"
#include "WAVM/Inline/Assert.h"
#include "WAVM/Inline/BasicTypes.h"
#include "WAVM/Inline/Errors.h"
#include "WAVM/Platform/RWMutex.h"
#include "WAVM/RuntimeABI/RuntimeABI.h"
using namespace WAVM;
using namespace WAVM::IR;
using namespace WAVM::Runtime;
#define DEFINE_OBJECT_TYPE(kindId, kindName, Type) \
Runtime::Type* Runtime::as##kindName(Object* object) \
{ \
WAVM_ASSERT(!object || object->kind == kindId); \
return (Runtime::Type*)object; \
} \
Runtime::Type* Runtime::as##kindName##Nullable(Object* object) \
{ \
return object && object->kind == kindId ? (Runtime::Type*)object : nullptr; \
} \
const Runtime::Type* Runtime::as##kindName(const Object* object) \
{ \
WAVM_ASSERT(!object || object->kind == kindId); \
return (const Runtime::Type*)object; \
} \
const Runtime::Type* Runtime::as##kindName##Nullable(const Object* object) \
{ \
return object && object->kind == kindId ? (const Runtime::Type*)object : nullptr; \
} \
Object* Runtime::asObject(Runtime::Type* object) { return (Object*)object; } \
const Object* Runtime::asObject(const Runtime::Type* object) { return (const Object*)object; }
#define DEFINE_GCOBJECT_TYPE(kindId, kindName, Type) \
DEFINE_OBJECT_TYPE(kindId, kindName, Type) \
void Runtime::setUserData(Runtime::Type* object, void* userData, void (*finalizer)(void*)) \
{ \
object->userData = userData; \
object->finalizeUserData = finalizer; \
} \
void* Runtime::getUserData(const Runtime::Type* object) { return object->userData; } \
const std::string& Runtime::getDebugName(const Type* object) { return object->debugName; }
DEFINE_GCOBJECT_TYPE(ObjectKind::table, Table, Table);
DEFINE_GCOBJECT_TYPE(ObjectKind::memory, Memory, Memory);
DEFINE_GCOBJECT_TYPE(ObjectKind::global, Global, Global);
DEFINE_GCOBJECT_TYPE(ObjectKind::exceptionType, ExceptionType, ExceptionType);
DEFINE_GCOBJECT_TYPE(ObjectKind::instance, Instance, Instance);
DEFINE_GCOBJECT_TYPE(ObjectKind::context, Context, Context);
DEFINE_GCOBJECT_TYPE(ObjectKind::compartment, Compartment, Compartment);
DEFINE_GCOBJECT_TYPE(ObjectKind::foreign, Foreign, Foreign);
DEFINE_OBJECT_TYPE(ObjectKind::function, Function, Function);
void Runtime::setUserData(Runtime::Function* function, void* userData, void (*finalizer)(void*))
{
function->mutableData->userData = userData;
function->mutableData->finalizeUserData = finalizer;
}
void* Runtime::getUserData(const Runtime::Function* function)
{
return function->mutableData->userData;
}
const std::string& Runtime::getDebugName(const Runtime::Function* function)
{
return function->mutableData->debugName;
}
void Runtime::setUserData(Runtime::Object* object, void* userData, void (*finalizer)(void*))
{
if(object->kind == ObjectKind::function)
{ setUserData(asFunction(object), userData, finalizer); }
else
{
auto gcObject = (GCObject*)object;
gcObject->userData = userData;
gcObject->finalizeUserData = finalizer;
}
}
void* Runtime::getUserData(const Runtime::Object* object)
{
if(object->kind == ObjectKind::function) { return getUserData(asFunction(object)); }
else
{
auto gcObject = (GCObject*)object;
return gcObject->userData;
}
}
const std::string& Runtime::getDebugName(const Runtime::Object* object)
{
if(object->kind == ObjectKind::function) { return getDebugName(asFunction(object)); }
else
{
auto gcObject = (GCObject*)object;
return gcObject->debugName;
}
}
Runtime::GCObject::~GCObject()
{
WAVM_ASSERT(numRootReferences.load(std::memory_order_acquire) == 0);
if(finalizeUserData) { (*finalizeUserData)(userData); }
}
bool Runtime::isA(const Object* object, const ExternType& type)
{
if(ObjectKind(type.kind) != object->kind) { return false; }
switch(type.kind)
{
case ExternKind::function: return asFunction(object)->encodedType == asFunctionType(type);
case ExternKind::global: return isSubtype(asGlobal(object)->type, asGlobalType(type));
case ExternKind::table: return isSubtype(getTableType(asTable(object)), asTableType(type));
case ExternKind::memory: return isSubtype(getMemoryType(asMemory(object)), asMemoryType(type));
case ExternKind::exceptionType:
return isSubtype(asExceptionType(type).params, asExceptionType(object)->sig.params);
case ExternKind::invalid:
default: WAVM_UNREACHABLE();
}
}
ExternType Runtime::getExternType(const Object* object)
{
switch(object->kind)
{
case ObjectKind::function: return FunctionType(asFunction(object)->encodedType);
case ObjectKind::global: return asGlobal(object)->type;
case ObjectKind::table: return getTableType(asTable(object));
case ObjectKind::memory: return getMemoryType(asMemory(object));
case ObjectKind::exceptionType: return asExceptionType(object)->sig;
case ObjectKind::instance:
case ObjectKind::context:
case ObjectKind::compartment:
case ObjectKind::foreign:
case ObjectKind::invalid:
default: WAVM_UNREACHABLE();
};
}
FunctionType Runtime::getFunctionType(const Function* function) { return function->encodedType; }
Context* Runtime::getContextFromRuntimeData(ContextRuntimeData* contextRuntimeData)
{
return contextRuntimeData->context;
}
Compartment* Runtime::getCompartmentFromContextRuntimeData(
struct ContextRuntimeData* contextRuntimeData)
{
const CompartmentRuntimeData* compartmentRuntimeData
= getCompartmentRuntimeData(contextRuntimeData);
return compartmentRuntimeData->compartment;
}
ContextRuntimeData* Runtime::getContextRuntimeData(const Context* context)
{
return context->runtimeData;
}
Instance* Runtime::getInstanceFromRuntimeData(ContextRuntimeData* contextRuntimeData,
Uptr instanceId)
{
Compartment* compartment = getCompartmentRuntimeData(contextRuntimeData)->compartment;
Platform::RWMutex::ShareableLock compartmentLock(compartment->mutex);
WAVM_ASSERT(compartment->instances.contains(instanceId));
return compartment->instances[instanceId];
}
Table* Runtime::getTableFromRuntimeData(ContextRuntimeData* contextRuntimeData, Uptr tableId)
{
Compartment* compartment = getCompartmentRuntimeData(contextRuntimeData)->compartment;
Platform::RWMutex::ShareableLock compartmentLock(compartment->mutex);
WAVM_ASSERT(compartment->tables.contains(tableId));
return compartment->tables[tableId];
}
Memory* Runtime::getMemoryFromRuntimeData(ContextRuntimeData* contextRuntimeData, Uptr memoryId)
{
Compartment* compartment = getCompartmentRuntimeData(contextRuntimeData)->compartment;
Platform::RWMutex::ShareableLock compartmentLock(compartment->mutex);
return compartment->memories[memoryId];
}
Foreign* Runtime::createForeign(Compartment* compartment,
void* userData,
void (*finalizer)(void*),
std::string&& debugName)
{
Foreign* foreign = new Foreign(compartment, std::move(debugName));
setUserData(foreign, userData, finalizer);
{
Platform::RWMutex::ExclusiveLock lock(compartment->mutex);
foreign->id = compartment->foreigns.add(UINTPTR_MAX, foreign);
if(foreign->id == UINTPTR_MAX)
{
delete foreign;
return nullptr;
}
}
return foreign;
}
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