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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "../../foxitlib.h"
#include "fxv8.h"
#include "runtime.h"
#include "scope_inline.h"
// Duplicates fpdfsdk's JS_Runtime.h, but keeps XFA from depending on it.
// TODO(tsepez): make a single version of this.
class FXJSE_ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
void* Allocate(size_t length) override {
return calloc(1, length);
}
void* AllocateUninitialized(size_t length) override {
return malloc(length);
}
void Free(void* data, size_t length) override {
free(data);
}
};
static void FXJSE_KillV8()
{
v8::V8::Dispose();
}
void FXJSE_Initialize()
{
if(!CFXJSE_RuntimeData::g_RuntimeList) {
CFXJSE_RuntimeData::g_RuntimeList = FX_NEW CFXJSE_RuntimeList;
}
static FX_BOOL bV8Initialized = FALSE;
if (bV8Initialized) {
return;
}
bV8Initialized = TRUE;
atexit(FXJSE_KillV8);
FX_LPCSTR szCmdFlags =
"--harmony_proxies "
"--block_concurrent_recompilation "
;
v8::V8::SetFlagsFromString(szCmdFlags, FXSYS_strlen(szCmdFlags));
}
static void FXJSE_Runtime_DisposeCallback(v8::Isolate* pIsolate)
{
{
v8::Locker locker(pIsolate);
CFXJSE_RuntimeData *pRuntimeData = reinterpret_cast<CFXJSE_RuntimeData*>(pIsolate->GetData(0));
if(pRuntimeData) {
pIsolate->SetData(0, NULL);
delete pRuntimeData;
}
}
pIsolate->Dispose();
}
void FXJSE_Finalize()
{
if(CFXJSE_RuntimeData::g_RuntimeList) {
CFXJSE_RuntimeData::g_RuntimeList->RemoveAllRuntimes(FXJSE_Runtime_DisposeCallback);
delete CFXJSE_RuntimeData::g_RuntimeList;
CFXJSE_RuntimeData::g_RuntimeList = NULL;
}
}
FXJSE_HRUNTIME FXJSE_Runtime_Create()
{
v8::Isolate::CreateParams params;
params.array_buffer_allocator = new FXJSE_ArrayBufferAllocator();
v8::Isolate* pIsolate = v8::Isolate::New(params);
ASSERT(pIsolate && CFXJSE_RuntimeData::g_RuntimeList);
CFXJSE_RuntimeData::g_RuntimeList->AppendRuntime(pIsolate);
return reinterpret_cast<FXJSE_HRUNTIME>(pIsolate);
}
void FXJSE_Runtime_Release(FXJSE_HRUNTIME hRuntime)
{
v8::Isolate* pIsolate = reinterpret_cast<v8::Isolate*>(hRuntime);
if(pIsolate) {
ASSERT(CFXJSE_RuntimeData::g_RuntimeList);
CFXJSE_RuntimeData::g_RuntimeList->RemoveRuntime(pIsolate, FXJSE_Runtime_DisposeCallback);
}
}
CFXJSE_RuntimeData* CFXJSE_RuntimeData::Create(v8::Isolate* pIsolate)
{
CFXJSE_RuntimeData* pRuntimeData = FX_NEW CFXJSE_RuntimeData(pIsolate);
ASSERT(pRuntimeData);
CFXJSE_ScopeUtil_IsolateHandle scope(pIsolate);
v8::Local<v8::FunctionTemplate> hFuncTemplate = v8::FunctionTemplate::New(pIsolate);
v8::Local<v8::Context> hContext = v8::Context::New(pIsolate, 0, hFuncTemplate->InstanceTemplate());
hContext->SetSecurityToken(v8::External::New(pIsolate, pIsolate));
pRuntimeData->m_hRootContextGlobalTemplate.Reset(pIsolate, hFuncTemplate);
pRuntimeData->m_hRootContext.Reset(pIsolate, hContext);
return pRuntimeData;
}
CFXJSE_RuntimeData* CFXJSE_RuntimeData::Get(v8::Isolate* pIsolate)
{
ASSERT(pIsolate);
CFXJSE_RuntimeData* pRuntimeData = static_cast<CFXJSE_RuntimeData*>(pIsolate->GetData(0));
if(!pRuntimeData) {
pRuntimeData = CFXJSE_RuntimeData::Create(pIsolate);
ASSERT(pRuntimeData);
pIsolate->SetData(0, pRuntimeData);
}
return pRuntimeData;
}
CFXJSE_RuntimeList * CFXJSE_RuntimeData::g_RuntimeList = NULL;
void CFXJSE_RuntimeList::AppendRuntime(v8::Isolate* pIsolate)
{
m_RuntimeList.Add(pIsolate);
}
void CFXJSE_RuntimeList::RemoveRuntime(v8::Isolate* pIsolate, CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback)
{
int32_t iIdx = m_RuntimeList.Find(pIsolate, 0);
if(iIdx >= 0) {
m_RuntimeList.RemoveAt(iIdx, 1);
}
if(lpfnDisposeCallback) {
lpfnDisposeCallback(pIsolate);
}
}
void CFXJSE_RuntimeList::RemoveAllRuntimes(CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback)
{
int32_t iSize = m_RuntimeList.GetSize();
if(lpfnDisposeCallback) {
for(int32_t iIdx = 0; iIdx < iSize; iIdx++) {
lpfnDisposeCallback(m_RuntimeList[iIdx]);
}
}
m_RuntimeList.RemoveAll();
}
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