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Bug 1171994: Use |RilSocket| to handle RIL messages on the RIL worker, r=htsai

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This patch finally breaks up forwarding received RIL messages to the
main thread before they go to the RIL worker. Any RIL message that is
received on th I/O thread is forwarded directly to the RIL worker
thread and handed over to the RIL worker JS code.

The patch includes a number of changes. They all depend on each other,
so there's no good way of landing them one-by-one.

 * |RilConsumer| now runs on the RIL worker thread.

 * |RilWorker| uses tasks to register/unregister |RilConsumer| in the worker.

 * |RilConsumer| uses |RilSocket| instead of |StreamSocket|.

 * With |RilSocket|, received RIL messages do not go through main. They are
   forwared to the RIL worker and handed over to JS immediately.
This commit is contained in:
Thomas Zimmermann 2015-07-14 16:57:00 +02:00
parent 4f939a0d7b
commit da78986754
2 changed files with 135 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

240
ipc/ril/Ril.cpp
View File

@ -5,16 +5,15 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ipc/Ril.h"
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netdb.h> // For gethostbyname.
#include "jsfriendapi.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/workers/Workers.h"
#include "mozilla/ipc/StreamSocket.h"
#include "mozilla/ipc/StreamSocketConsumer.h"
#include "mozilla/ipc/RilSocket.h"
#include "mozilla/ipc/RilSocketConsumer.h"
#include "nsThreadUtils.h" // For NS_IsMainThread.
#include "RilConnector.h"
@ -29,11 +28,11 @@
#define CHROMIUM_LOG(args...) printf(args);
#endif
USING_WORKERS_NAMESPACE
namespace mozilla {
namespace ipc {
USING_WORKERS_NAMESPACE
class RilConsumer;
static const char RIL_SOCKET_NAME[] = "/dev/socket/rilproxy";
@ -44,29 +43,30 @@ static nsTArray<nsAutoPtr<RilConsumer>> sRilConsumers;
// RilConsumer
//
class RilConsumer final : public StreamSocketConsumer
class RilConsumer final : public RilSocketConsumer
{
public:
friend class RilWorker;
RilConsumer(unsigned long aClientId,
WorkerCrossThreadDispatcher* aDispatcher);
RilConsumer();
void Send(UnixSocketRawData* aRawData);
void Close();
// Methods for |StreamSocketConsumer|
nsresult Register(unsigned long aClientId,
WorkerCrossThreadDispatcher* aDispatcher);
void Unregister();
// Methods for |RilSocketConsumer|
//
void ReceiveSocketData(int aIndex,
void ReceiveSocketData(JSContext* aCx,
int aIndex,
nsAutoPtr<UnixSocketBuffer>& aBuffer) override;
void OnConnectSuccess(int aIndex) override;
void OnConnectError(int aIndex) override;
void OnDisconnect(int aIndex) override;
private:
nsRefPtr<StreamSocket> mSocket;
nsRefPtr<mozilla::dom::workers::WorkerCrossThreadDispatcher> mDispatcher;
nsRefPtr<RilSocket> mSocket;
nsCString mAddress;
bool mShutdown;
};
@ -77,39 +77,10 @@ public:
bool RunTask(JSContext* aCx) override;
};
class SendRilSocketDataTask final : public nsRunnable
{
public:
SendRilSocketDataTask(unsigned long aClientId,
UnixSocketRawData* aRawData)
: mRawData(aRawData)
, mClientId(aClientId)
{ }
NS_IMETHOD Run() override
{
MOZ_ASSERT(NS_IsMainThread());
if (sRilConsumers.Length() <= mClientId || !sRilConsumers[mClientId]) {
// Probably shutting down.
delete mRawData;
return NS_OK;
}
sRilConsumers[mClientId]->Send(mRawData);
return NS_OK;
}
private:
UnixSocketRawData* mRawData;
unsigned long mClientId;
};
static bool
PostToRIL(JSContext* aCx, unsigned aArgc, JS::Value* aVp)
{
JS::CallArgs args = JS::CallArgsFromVp(aArgc, aVp);
NS_ASSERTION(!NS_IsMainThread(), "Expecting to be on the worker thread");
if (args.length() != 2) {
JS_ReportError(aCx, "Expecting two arguments with the RIL message");
@ -119,7 +90,7 @@ PostToRIL(JSContext* aCx, unsigned aArgc, JS::Value* aVp)
int clientId = args[0].toInt32();
JS::Value v = args[1];
UnixSocketRawData* raw = nullptr;
nsAutoPtr<UnixSocketRawData> raw;
if (v.isString()) {
JSAutoByteString abs;
@ -159,9 +130,13 @@ PostToRIL(JSContext* aCx, unsigned aArgc, JS::Value* aVp)
return false;
}
nsRefPtr<SendRilSocketDataTask> task = new SendRilSocketDataTask(clientId,
raw);
NS_DispatchToMainThread(task);
if ((ssize_t)sRilConsumers.Length() <= clientId || !sRilConsumers[clientId]) {
// Probably shutting down.
return true;
}
sRilConsumers[clientId]->Send(raw.forget());
return true;
}
@ -170,7 +145,7 @@ ConnectWorkerToRIL::RunTask(JSContext* aCx)
{
// Set up the postRILMessage on the function for worker -> RIL thread
// communication.
NS_ASSERTION(!NS_IsMainThread(), "Expecting to be on the worker thread");
//NS_ASSERTION(!NS_IsMainThread(), "Expecting to be on the worker thread");
NS_ASSERTION(!JS_IsRunning(aCx), "Are we being called somehow?");
JS::Rooted<JSObject*> workerGlobal(aCx, JS::CurrentGlobalOrNull(aCx));
@ -191,49 +166,13 @@ ConnectWorkerToRIL::RunTask(JSContext* aCx)
PostToRIL, 2, 0);
}
class DispatchRILEvent final : public WorkerTask
{
public:
DispatchRILEvent(unsigned long aClient, UnixSocketBuffer* aBuffer)
: mClientId(aClient)
, mBuffer(aBuffer)
{ }
RilConsumer::RilConsumer()
: mShutdown(false)
{ }
bool RunTask(JSContext* aCx) override;
private:
unsigned long mClientId;
nsAutoPtr<UnixSocketBuffer> mBuffer;
};
bool
DispatchRILEvent::RunTask(JSContext* aCx)
{
JS::Rooted<JSObject*> obj(aCx, JS::CurrentGlobalOrNull(aCx));
JS::Rooted<JSObject*> array(aCx,
JS_NewUint8Array(aCx, mBuffer->GetSize()));
if (!array) {
return false;
}
{
JS::AutoCheckCannotGC nogc;
memcpy(JS_GetArrayBufferViewData(array, nogc),
mBuffer->GetData(), mBuffer->GetSize());
}
JS::AutoValueArray<2> args(aCx);
args[0].setNumber((uint32_t)mClientId);
args[1].setObject(*array);
JS::Rooted<JS::Value> rval(aCx);
return JS_CallFunctionName(aCx, obj, "onRILMessage", args, &rval);
}
RilConsumer::RilConsumer(unsigned long aClientId,
WorkerCrossThreadDispatcher* aDispatcher)
: mDispatcher(aDispatcher)
, mShutdown(false)
nsresult
RilConsumer::Register(unsigned long aClientId,
WorkerCrossThreadDispatcher* aDispatcher)
{
// Only append client id after RIL_SOCKET_NAME when it's not connected to
// the first(0) rilproxy for compatibility.
@ -246,8 +185,21 @@ RilConsumer::RilConsumer(unsigned long aClientId,
mAddress = addr_un.sun_path;
}
mSocket = new StreamSocket(this, aClientId);
mSocket->Connect(new RilConnector(mAddress, aClientId));
mSocket = new RilSocket(aDispatcher, this, aClientId);
nsresult rv = mSocket->Connect(new RilConnector(mAddress, aClientId));
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
void
RilConsumer::Unregister()
{
mShutdown = true;
Close();
}
void
@ -270,16 +222,31 @@ RilConsumer::Close()
}
}
// |StreamSocketConnector|
// |RilSocketConnector|
void
RilConsumer::ReceiveSocketData(int aIndex,
RilConsumer::ReceiveSocketData(JSContext* aCx,
int aIndex,
nsAutoPtr<UnixSocketBuffer>& aBuffer)
{
MOZ_ASSERT(NS_IsMainThread());
JS::Rooted<JSObject*> obj(aCx, JS::CurrentGlobalOrNull(aCx));
nsRefPtr<DispatchRILEvent> dre(new DispatchRILEvent(aIndex, aBuffer.forget()));
mDispatcher->PostTask(dre);
JS::Rooted<JSObject*> array(aCx, JS_NewUint8Array(aCx, aBuffer->GetSize()));
if (!array) {
return;
}
{
JS::AutoCheckCannotGC nogc;
memcpy(JS_GetArrayBufferViewData(array, nogc),
aBuffer->GetData(), aBuffer->GetSize());
}
JS::AutoValueArray<2> args(aCx);
args[0].setNumber((uint32_t)aIndex);
args[1].setObject(*array);
JS::Rooted<JS::Value> rval(aCx);
JS_CallFunctionName(aCx, obj, "onRILMessage", args, &rval);
}
void
@ -357,6 +324,39 @@ RilWorker::RilWorker(WorkerCrossThreadDispatcher* aDispatcher)
MOZ_ASSERT(mDispatcher);
}
class RilWorker::RegisterConsumerTask : public WorkerTask
{
public:
RegisterConsumerTask(unsigned int aClientId,
WorkerCrossThreadDispatcher* aDispatcher)
: mClientId(aClientId)
, mDispatcher(aDispatcher)
{
MOZ_ASSERT(mDispatcher);
}
bool RunTask(JSContext* aCx) override
{
sRilConsumers.EnsureLengthAtLeast(mClientId + 1);
MOZ_ASSERT(!sRilConsumers[mClientId]);
nsAutoPtr<RilConsumer> rilConsumer(new RilConsumer());
nsresult rv = rilConsumer->Register(mClientId, mDispatcher);
if (NS_FAILED(rv)) {
return false;
}
sRilConsumers[mClientId] = rilConsumer;
return true;
}
private:
unsigned int mClientId;
nsRefPtr<WorkerCrossThreadDispatcher> mDispatcher;
};
nsresult
RilWorker::RegisterConsumer(unsigned int aClientId)
{
@ -366,24 +366,48 @@ RilWorker::RegisterConsumer(unsigned int aClientId)
return NS_ERROR_UNEXPECTED;
}
sRilConsumers.EnsureLengthAtLeast(aClientId + 1);
MOZ_ASSERT(!sRilConsumers[aClientId]);
sRilConsumers[aClientId] = new RilConsumer(aClientId, mDispatcher);
nsRefPtr<RegisterConsumerTask> task = new RegisterConsumerTask(aClientId,
mDispatcher);
if (!mDispatcher->PostTask(task)) {
NS_WARNING("Failed to post register-consumer task.");
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
class RilWorker::UnregisterConsumerTask : public WorkerTask
{
public:
UnregisterConsumerTask(unsigned int aClientId)
: mClientId(aClientId)
{ }
bool RunTask(JSContext* aCx) override
{
MOZ_ASSERT(mClientId < sRilConsumers.Length());
MOZ_ASSERT(sRilConsumers[mClientId]);
sRilConsumers[mClientId]->Unregister();
sRilConsumers[mClientId] = nullptr;
return true;
}
private:
unsigned int mClientId;
};
void
RilWorker::UnregisterConsumer(unsigned int aClientId)
{
MOZ_ASSERT(aClientId < sRilConsumers.Length());
MOZ_ASSERT(sRilConsumers[aClientId]);
nsRefPtr<UnregisterConsumerTask> task =
new UnregisterConsumerTask(aClientId);
sRilConsumers[aClientId]->mShutdown = true;
sRilConsumers[aClientId]->Close();
sRilConsumers[aClientId] = nullptr;
if (!mDispatcher->PostTask(task)) {
NS_WARNING("Failed to post unregister-consumer task.");
return;
}
}
} // namespace ipc

3
ipc/ril/Ril.h
View File

@ -35,6 +35,9 @@ public:
static void Shutdown();
private:
class RegisterConsumerTask;
class UnregisterConsumerTask;
RilWorker(mozilla::dom::workers::WorkerCrossThreadDispatcher* aDispatcher);
nsresult RegisterConsumer(unsigned int aClientId);