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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 "xfa/fxjse/runtime.h"
#include <algorithm>
#include "fpdfsdk/jsapi/include/fxjs_v8.h"
#include "xfa/fxjse/scope_inline.h"
// Duplicates fpdfsdk's cjs_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 = new CFXJSE_RuntimeList;
}
static FX_BOOL bV8Initialized = FALSE;
if (bV8Initialized) {
return;
}
bV8Initialized = TRUE;
atexit(FXJSE_KillV8);
}
static void FXJSE_Runtime_DisposeCallback(v8::Isolate* pIsolate) {
{
v8::Locker locker(pIsolate);
if (FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate)) {
delete pData->m_pFXJSERuntimeData;
pData->m_pFXJSERuntimeData = nullptr;
}
}
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, bool bOwnedRuntime) {
v8::Isolate* pIsolate = reinterpret_cast<v8::Isolate*>(hRuntime);
if (!pIsolate)
return;
if (bOwnedRuntime) {
ASSERT(CFXJSE_RuntimeData::g_RuntimeList);
CFXJSE_RuntimeData::g_RuntimeList->RemoveRuntime(
pIsolate, FXJSE_Runtime_DisposeCallback);
} else {
if (FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate)) {
delete pData->m_pFXJSERuntimeData;
pData->m_pFXJSERuntimeData = nullptr;
}
}
}
CFXJSE_RuntimeData* CFXJSE_RuntimeData::Create(v8::Isolate* pIsolate) {
CFXJSE_RuntimeData* pRuntimeData = new CFXJSE_RuntimeData(pIsolate);
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) {
FXJS_PerIsolateData::SetUp(pIsolate);
FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
if (!pData->m_pFXJSERuntimeData)
pData->m_pFXJSERuntimeData = CFXJSE_RuntimeData::Create(pIsolate);
return pData->m_pFXJSERuntimeData;
}
CFXJSE_RuntimeList* CFXJSE_RuntimeData::g_RuntimeList = nullptr;
void CFXJSE_RuntimeList::AppendRuntime(v8::Isolate* pIsolate) {
m_RuntimeList.push_back(pIsolate);
}
void CFXJSE_RuntimeList::RemoveRuntime(
v8::Isolate* pIsolate,
CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback) {
auto it = std::find(m_RuntimeList.begin(), m_RuntimeList.end(), pIsolate);
if (it != m_RuntimeList.end())
m_RuntimeList.erase(it);
if (lpfnDisposeCallback)
lpfnDisposeCallback(pIsolate);
}
void CFXJSE_RuntimeList::RemoveAllRuntimes(
CFXJSE_RuntimeList::RuntimeDisposeCallback lpfnDisposeCallback) {
if (lpfnDisposeCallback) {
for (v8::Isolate* pIsolate : m_RuntimeList)
lpfnDisposeCallback(pIsolate);
}
m_RuntimeList.clear();
}
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