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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "pnacl_translation_resource_host.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/task/single_thread_task_runner.h"
#include "components/nacl/common/nacl_host_messages.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/shared_impl/ppapi_globals.h"
using ppapi::PpapiGlobals;
PnaclTranslationResourceHost::PnaclTranslationResourceHost(
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner)
: io_task_runner_(io_task_runner), sender_(nullptr) {}
PnaclTranslationResourceHost::~PnaclTranslationResourceHost() {
DCHECK(io_task_runner_->BelongsToCurrentThread());
CleanupCacheRequests();
}
void PnaclTranslationResourceHost::OnFilterAdded(IPC::Channel* channel) {
DCHECK(io_task_runner_->BelongsToCurrentThread());
sender_ = channel;
}
void PnaclTranslationResourceHost::OnFilterRemoved() {
DCHECK(io_task_runner_->BelongsToCurrentThread());
sender_ = nullptr;
}
void PnaclTranslationResourceHost::OnChannelClosing() {
DCHECK(io_task_runner_->BelongsToCurrentThread());
sender_ = nullptr;
}
bool PnaclTranslationResourceHost::OnMessageReceived(
const IPC::Message& message) {
DCHECK(io_task_runner_->BelongsToCurrentThread());
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PnaclTranslationResourceHost, message)
IPC_MESSAGE_HANDLER(NaClViewMsg_NexeTempFileReply, OnNexeTempFileReply)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PnaclTranslationResourceHost::RequestNexeFd(
PP_Instance instance,
const nacl::PnaclCacheInfo& cache_info,
RequestNexeFdCallback callback) {
DCHECK(PpapiGlobals::Get()->
GetMainThreadMessageLoop()->BelongsToCurrentThread());
io_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&PnaclTranslationResourceHost::SendRequestNexeFd, this,
instance, cache_info, std::move(callback)));
return;
}
void PnaclTranslationResourceHost::SendRequestNexeFd(
PP_Instance instance,
const nacl::PnaclCacheInfo& cache_info,
RequestNexeFdCallback callback) {
DCHECK(io_task_runner_->BelongsToCurrentThread());
if (!sender_ || !sender_->Send(new NaClHostMsg_NexeTempFileRequest(
instance, cache_info))) {
PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
FROM_HERE, base::BindOnce(std::move(callback),
static_cast<int32_t>(PP_ERROR_FAILED), false,
PP_kInvalidFileHandle));
return;
}
pending_cache_requests_.insert(std::make_pair(instance, std::move(callback)));
}
void PnaclTranslationResourceHost::ReportTranslationFinished(
PP_Instance instance,
PP_Bool success) {
DCHECK(PpapiGlobals::Get()->
GetMainThreadMessageLoop()->BelongsToCurrentThread());
io_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(
&PnaclTranslationResourceHost::SendReportTranslationFinished, this,
instance, success));
return;
}
void PnaclTranslationResourceHost::SendReportTranslationFinished(
PP_Instance instance,
PP_Bool success) {
DCHECK(io_task_runner_->BelongsToCurrentThread());
// If the sender is closed or we have been detached, we are probably shutting
// down, so just don't send anything.
if (!sender_)
return;
DCHECK(pending_cache_requests_.count(instance) == 0);
sender_->Send(new NaClHostMsg_ReportTranslationFinished(instance,
PP_ToBool(success)));
}
void PnaclTranslationResourceHost::OnNexeTempFileReply(
PP_Instance instance,
bool is_hit,
IPC::PlatformFileForTransit file) {
DCHECK(io_task_runner_->BelongsToCurrentThread());
base::File base_file = IPC::PlatformFileForTransitToFile(file);
auto it = pending_cache_requests_.find(instance);
if (!base_file.IsValid()) {
DLOG(ERROR) << "Got invalid platformfilefortransit";
}
if (it != pending_cache_requests_.end()) {
PP_FileHandle file_handle = PP_kInvalidFileHandle;
int32_t status = PP_ERROR_FAILED;
if (base_file.IsValid()) {
file_handle = base_file.TakePlatformFile();
status = PP_OK;
}
PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
FROM_HERE,
base::BindOnce(std::move(it->second), status, is_hit, file_handle));
pending_cache_requests_.erase(it);
} else {
DLOG(ERROR) << "Could not find pending request for reply";
}
}
void PnaclTranslationResourceHost::CleanupCacheRequests() {
DCHECK(io_task_runner_->BelongsToCurrentThread());
for (auto it = pending_cache_requests_.begin();
it != pending_cache_requests_.end(); ++it) {
PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
FROM_HERE, base::BindOnce(std::move(it->second),
static_cast<int32_t>(PP_ERROR_ABORTED), false,
PP_kInvalidFileHandle));
}
pending_cache_requests_.clear();
}
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