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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/c/dev/ppb_var_deprecated.h"
#include "ppapi/c/dev/ppp_class_deprecated.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb_var.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/private/ppp_instance_private.h"
#include "ppapi/proxy/host_dispatcher.h"
#include "ppapi/proxy/ppapi_proxy_test.h"
namespace ppapi {
namespace proxy {
namespace {
const PP_Instance kInstance = 0xdeadbeef;
PP_Var MakeObjectVar(int64_t object_id) {
PP_Var ret;
ret.type = PP_VARTYPE_OBJECT;
ret.value.as_id = object_id;
return ret;
}
PluginDispatcher* plugin_dispatcher = NULL;
// Return the plugin-side proxy for PPB_Var_Deprecated.
const PPB_Var_Deprecated* plugin_var_deprecated_if() {
// The test code must set the plugin dispatcher.
CHECK(plugin_dispatcher);
// Grab the plugin-side proxy for PPB_Var_Deprecated (for CreateObject).
return static_cast<const PPB_Var_Deprecated*>(
plugin_dispatcher->GetBrowserInterface(
PPB_VAR_DEPRECATED_INTERFACE));
}
// Mock PPP_Instance_Private.
PP_Var instance_obj;
PP_Var GetInstanceObject(PP_Instance /*instance*/) {
// The 1 ref we got from CreateObject will be passed to the host. We want to
// have a ref of our own.
plugin_var_deprecated_if()->AddRef(instance_obj);
return instance_obj;
}
PPP_Instance_Private ppp_instance_private_mock = {
&GetInstanceObject
};
// We need to mock PPP_Instance, so that we can create and destroy the pretend
// instance that PPP_Instance_Private uses.
PP_Bool DidCreate(PP_Instance /*instance*/, uint32_t /*argc*/,
const char* /*argn*/[], const char* /*argv*/[]) {
// Create an object var. This should exercise the typical path for creating
// instance objects.
instance_obj =
plugin_var_deprecated_if()->CreateObject(kInstance, NULL, NULL);
return PP_TRUE;
}
void DidDestroy(PP_Instance /*instance*/) {
// Decrement the reference count for our instance object. It should be
// deleted.
plugin_var_deprecated_if()->Release(instance_obj);
}
PPP_Instance_1_0 ppp_instance_mock = { &DidCreate, &DidDestroy };
} // namespace
// Mock PPB_Var_Deprecated, so that we can emulate creating an Object Var.
std::map<int64_t, int> id_refcount_map;
void AddRefVar(PP_Var var) {
CHECK(var.type >= PP_VARTYPE_STRING); // Must be a ref-counted type.
CHECK(id_refcount_map.find(var.value.as_id) != id_refcount_map.end());
++id_refcount_map[var.value.as_id];
}
void ReleaseVar(PP_Var var) {
CHECK(var.type >= PP_VARTYPE_STRING); // Must be a ref-counted type.
std::map<int64_t, int>::iterator iter = id_refcount_map.find(var.value.as_id);
CHECK(iter != id_refcount_map.end());
CHECK(iter->second > 0);
if (--(iter->second) == 0)
id_refcount_map.erase(iter);
}
PP_Var CreateObject(PP_Instance instance,
const PPP_Class_Deprecated* /*ppp_class*/,
void* /*ppp_class_data*/) {
static int64_t last_id = 0;
++last_id;
// Set the refcount to 0. It should really be 1, but that ref gets passed to
// the plugin immediately (and we don't emulate all of that behavior here).
id_refcount_map[last_id] = 0;
return MakeObjectVar(last_id);
}
const PPB_Var_Deprecated ppb_var_deprecated_mock = {
&AddRefVar,
&ReleaseVar,
NULL, // VarFromUtf8
NULL, // VarToUtf8
NULL, // HasProperty
NULL, // HasMethod
NULL, // GetProperty
NULL, // EnumerateProperties
NULL, // SetProperty
NULL, // RemoveProperty
NULL, // Call
NULL, // Construct
NULL, // IsInstanceOf
&CreateObject
};
const PPB_Var ppb_var_mock = { &AddRefVar, &ReleaseVar };
class PPP_Instance_Private_ProxyTest : public TwoWayTest {
public:
PPP_Instance_Private_ProxyTest()
: TwoWayTest(TwoWayTest::TEST_PPP_INTERFACE) {
plugin().RegisterTestInterface(PPP_INSTANCE_PRIVATE_INTERFACE,
&ppp_instance_private_mock);
plugin().RegisterTestInterface(PPP_INSTANCE_INTERFACE_1_0,
&ppp_instance_mock);
host().RegisterTestInterface(PPB_VAR_DEPRECATED_INTERFACE,
&ppb_var_deprecated_mock);
host().RegisterTestInterface(PPB_VAR_INTERFACE,
&ppb_var_mock);
}
};
TEST_F(PPP_Instance_Private_ProxyTest, PPPInstancePrivate) {
// This test controls its own instance; we can't use the one that
// PluginProxyTestHarness provides.
ASSERT_NE(kInstance, pp_instance());
HostDispatcher::SetForInstance(kInstance, host().host_dispatcher());
// This file-local global is used by the PPP_Instance mock above in order to
// access PPB_Var_Deprecated.
plugin_dispatcher = plugin().plugin_dispatcher();
// Grab the host-side proxy for PPP_Instance and PPP_Instance_Private.
const PPP_Instance_Private* ppp_instance_private =
static_cast<const PPP_Instance_Private*>(
host().host_dispatcher()->GetProxiedInterface(
PPP_INSTANCE_PRIVATE_INTERFACE));
const PPP_Instance_1_0* ppp_instance = static_cast<const PPP_Instance_1_0*>(
host().host_dispatcher()->GetProxiedInterface(
PPP_INSTANCE_INTERFACE_1_0));
// Initialize an Instance, so that the plugin-side machinery will work
// properly.
EXPECT_EQ(PP_TRUE, ppp_instance->DidCreate(kInstance, 0, NULL, NULL));
// Now instance_obj is valid and should have a ref-count of 1.
PluginVarTracker& plugin_var_tracker =
*PluginGlobals::Get()->plugin_var_tracker();
// Check the plugin-side reference count.
EXPECT_EQ(1, plugin_var_tracker.GetRefCountForObject(instance_obj));
// Check the host-side var and reference count.
ASSERT_EQ(1u, id_refcount_map.size());
EXPECT_EQ(plugin_var_tracker.GetHostObject(instance_obj).value.as_id,
id_refcount_map.begin()->first);
EXPECT_EQ(0, id_refcount_map.begin()->second);
// Call from the browser side to get the instance object.
PP_Var host_obj = ppp_instance_private->GetInstanceObject(kInstance);
EXPECT_EQ(instance_obj.type, host_obj.type);
EXPECT_EQ(host_obj.value.as_id,
plugin_var_tracker.GetHostObject(instance_obj).value.as_id);
EXPECT_EQ(1, plugin_var_tracker.GetRefCountForObject(instance_obj));
ASSERT_EQ(1u, id_refcount_map.size());
// The browser should be passed a reference.
EXPECT_EQ(1, id_refcount_map.begin()->second);
// The plugin is going away; generally, so will all references to its instance
// object.
ReleaseVar(host_obj);
// Destroy the instance. DidDestroy above decrements the reference count for
// instance_obj, so it should also be destroyed.
ppp_instance->DidDestroy(kInstance);
EXPECT_EQ(-1, plugin_var_tracker.GetRefCountForObject(instance_obj));
// Check the host-side reference count.
EXPECT_EQ(0u, id_refcount_map.size());
}
} // namespace proxy
} // namespace ppapi
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