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// Copyright 2013 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 "pnacl_translation_resource_host.h"
#include "components/nacl/common/nacl_host_messages.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/shared_impl/ppapi_globals.h"
using ppapi::TrackedCallback;
using ppapi::PpapiGlobals;
PnaclTranslationResourceHost::CacheRequestInfo::CacheRequestInfo(
PP_Bool* hit,
PP_FileHandle* handle,
scoped_refptr<TrackedCallback> cb)
: is_hit(hit), file_handle(handle), callback(cb) {}
PnaclTranslationResourceHost::CacheRequestInfo::~CacheRequestInfo() {}
PnaclTranslationResourceHost::PnaclTranslationResourceHost(
const scoped_refptr<base::MessageLoopProxy>& io_message_loop)
: io_message_loop_(io_message_loop), channel_(NULL) {}
PnaclTranslationResourceHost::~PnaclTranslationResourceHost() {
DCHECK(io_message_loop_->BelongsToCurrentThread());
CleanupCacheRequests();
}
void PnaclTranslationResourceHost::OnFilterAdded(IPC::Channel* channel) {
DCHECK(io_message_loop_->BelongsToCurrentThread());
channel_ = channel;
}
void PnaclTranslationResourceHost::OnFilterRemoved() {
DCHECK(io_message_loop_->BelongsToCurrentThread());
channel_ = NULL;
}
void PnaclTranslationResourceHost::OnChannelClosing() {
DCHECK(io_message_loop_->BelongsToCurrentThread());
channel_ = NULL;
}
bool PnaclTranslationResourceHost::OnMessageReceived(
const IPC::Message& message) {
DCHECK(io_message_loop_->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(
int render_view_id,
PP_Instance instance,
const nacl::PnaclCacheInfo& cache_info,
PP_Bool* is_hit,
PP_FileHandle* file_handle,
scoped_refptr<TrackedCallback> callback) {
DCHECK(PpapiGlobals::Get()->
GetMainThreadMessageLoop()->BelongsToCurrentThread());
io_message_loop_->PostTask(
FROM_HERE,
base::Bind(&PnaclTranslationResourceHost::SendRequestNexeFd,
this,
render_view_id,
instance,
cache_info,
is_hit,
file_handle,
callback));
return;
}
void PnaclTranslationResourceHost::SendRequestNexeFd(
int render_view_id,
PP_Instance instance,
const nacl::PnaclCacheInfo& cache_info,
PP_Bool* is_hit,
PP_FileHandle* file_handle,
scoped_refptr<TrackedCallback> callback) {
DCHECK(io_message_loop_->BelongsToCurrentThread());
if (!channel_ || !channel_->Send(new NaClHostMsg_NexeTempFileRequest(
render_view_id, instance, cache_info))) {
PpapiGlobals::Get()->GetMainThreadMessageLoop()
->PostTask(FROM_HERE,
base::Bind(&TrackedCallback::Run,
callback,
static_cast<int32_t>(PP_ERROR_FAILED)));
return;
}
pending_cache_requests_.insert(std::make_pair(
instance, CacheRequestInfo(is_hit, file_handle, callback)));
}
void PnaclTranslationResourceHost::ReportTranslationFinished(
PP_Instance instance,
PP_Bool success) {
DCHECK(PpapiGlobals::Get()->
GetMainThreadMessageLoop()->BelongsToCurrentThread());
io_message_loop_->PostTask(
FROM_HERE,
base::Bind(&PnaclTranslationResourceHost::SendReportTranslationFinished,
this,
instance,
success));
return;
}
void PnaclTranslationResourceHost::SendReportTranslationFinished(
PP_Instance instance,
PP_Bool success) {
DCHECK(io_message_loop_->BelongsToCurrentThread());
// If the channel is closed or we have been detached, we are probably shutting
// down, so just don't send anything.
if (!channel_)
return;
DCHECK(pending_cache_requests_.count(instance) == 0);
channel_->Send(new NaClHostMsg_ReportTranslationFinished(instance,
PP_ToBool(success)));
}
void PnaclTranslationResourceHost::OnNexeTempFileReply(
PP_Instance instance,
bool is_hit,
IPC::PlatformFileForTransit file) {
DCHECK(io_message_loop_->BelongsToCurrentThread());
base::File base_file = IPC::PlatformFileForTransitToFile(file);
CacheRequestInfoMap::iterator it = pending_cache_requests_.find(instance);
int32_t status = PP_ERROR_FAILED;
// Handle the expected successful case first.
if (it != pending_cache_requests_.end() && base_file.IsValid() &&
TrackedCallback::IsPending(it->second.callback)) {
*it->second.is_hit = PP_FromBool(is_hit);
*it->second.file_handle = base_file.TakePlatformFile();
status = PP_OK;
}
if (it == pending_cache_requests_.end()) {
DLOG(ERROR) << "Could not find pending request for reply";
} else {
PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
FROM_HERE,
base::Bind(&TrackedCallback::Run, it->second.callback, status));
pending_cache_requests_.erase(it);
}
if (!base_file.IsValid()) {
DLOG(ERROR) << "Got invalid platformfilefortransit";
}
}
void PnaclTranslationResourceHost::CleanupCacheRequests() {
DCHECK(io_message_loop_->BelongsToCurrentThread());
for (CacheRequestInfoMap::iterator it = pending_cache_requests_.begin();
it != pending_cache_requests_.end();
++it) {
it->second.callback->PostAbort();
}
pending_cache_requests_.clear();
}
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