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Commit 70f37675 authored by Devin Moore's avatar Devin Moore Committed by Automerger Merge Worker
Browse files

Merge "Use android::base::function_ref isntead of std::function" am: 7514e3b9 

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2115298



Change-Id: I25b606dfbc804b3aa96da6fe5a3423a7dfef44ac
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents fa653504 7514e3b9

libs/binder/RpcServer.cpp

+6 −4
Original line number Diff line number Diff line
@@ -289,7 +289,8 @@ void RpcServer::establishConnection(sp<RpcServer>&& server, base::unique_fd clie 
    RpcConnectionHeader header;

    if (status == OK) {

        iovec iov{&header, sizeof(header)};

        status = client->interruptableReadFully(server->mShutdownTrigger.get(), &iov, 1, {});

        status = client->interruptableReadFully(server->mShutdownTrigger.get(), &iov, 1,

                                                std::nullopt);

        if (status != OK) {

            ALOGE("Failed to read ID for client connecting to RPC server: %s",

                  statusToString(status).c_str());
@@ -303,8 +304,8 @@ void RpcServer::establishConnection(sp<RpcServer>&& server, base::unique_fd clie 
            if (header.sessionIdSize == kSessionIdBytes) {

                sessionId.resize(header.sessionIdSize);

                iovec iov{sessionId.data(), sessionId.size()};

                status =

                        client->interruptableReadFully(server->mShutdownTrigger.get(), &iov, 1, {});

                status = client->interruptableReadFully(server->mShutdownTrigger.get(), &iov, 1,

                                                        std::nullopt);

                if (status != OK) {

                    ALOGE("Failed to read session ID for client connecting to RPC server: %s",

                          statusToString(status).c_str());
@@ -334,7 +335,8 @@ void RpcServer::establishConnection(sp<RpcServer>&& server, base::unique_fd clie 
            };



            iovec iov{&response, sizeof(response)};

            status = client->interruptableWriteFully(server->mShutdownTrigger.get(), &iov, 1, {});

            status = client->interruptableWriteFully(server->mShutdownTrigger.get(), &iov, 1,

                                                     std::nullopt);

            if (status != OK) {

                ALOGE("Failed to send new session response: %s", statusToString(status).c_str());

                // still need to cleanup before we can return

libs/binder/RpcSession.cpp

+3 −3
Original line number Diff line number Diff line
@@ -615,7 +615,7 @@ status_t RpcSession::initAndAddConnection(unique_fd fd, const std::vector<uint8_ 


    iovec headerIov{&header, sizeof(header)};

    auto sendHeaderStatus =

            server->interruptableWriteFully(mShutdownTrigger.get(), &headerIov, 1, {});

            server->interruptableWriteFully(mShutdownTrigger.get(), &headerIov, 1, std::nullopt);

    if (sendHeaderStatus != OK) {

        ALOGE("Could not write connection header to socket: %s",

              statusToString(sendHeaderStatus).c_str());
@@ -625,8 +625,8 @@ status_t RpcSession::initAndAddConnection(unique_fd fd, const std::vector<uint8_ 
    if (sessionId.size() > 0) {

        iovec sessionIov{const_cast<void*>(static_cast<const void*>(sessionId.data())),

                         sessionId.size()};

        auto sendSessionIdStatus =

                server->interruptableWriteFully(mShutdownTrigger.get(), &sessionIov, 1, {});

        auto sendSessionIdStatus = server->interruptableWriteFully(mShutdownTrigger.get(),

                                                                   &sessionIov, 1, std::nullopt);

        if (sendSessionIdStatus != OK) {

            ALOGE("Could not write session ID ('%s') to socket: %s",

                  base::HexString(sessionId.data(), sessionId.size()).c_str(),

libs/binder/RpcState.cpp

+25 −24
Original line number Diff line number Diff line
@@ -311,7 +311,7 @@ RpcState::CommandData::CommandData(size_t size) : mSize(size) { 


status_t RpcState::rpcSend(const sp<RpcSession::RpcConnection>& connection,

                           const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs,

                           const std::function<status_t()>& altPoll) {

                           const std::optional<android::base::function_ref<status_t()>>& altPoll) {

    for (int i = 0; i < niovs; i++) {

        LOG_RPC_DETAIL("Sending %s (part %d of %d) on RpcTransport %p: %s",

                       what, i + 1, niovs, connection->rpcTransport.get(),
@@ -335,7 +335,7 @@ status_t RpcState::rpcRec(const sp<RpcSession::RpcConnection>& connection, 
                          const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs) {

    if (status_t status =

                connection->rpcTransport->interruptableReadFully(session->mShutdownTrigger.get(),

                                                                 iovs, niovs, {});

                                                                 iovs, niovs, std::nullopt);

        status != OK) {

        LOG_RPC_DETAIL("Failed to read %s (%d iovs) on RpcTransport %p, error: %s", what, niovs,

                       connection->rpcTransport.get(), statusToString(status).c_str());
@@ -369,7 +369,7 @@ status_t RpcState::sendConnectionInit(const sp<RpcSession::RpcConnection>& conne 
            .msg = RPC_CONNECTION_INIT_OKAY,

    };

    iovec iov{&init, sizeof(init)};

    return rpcSend(connection, session, "connection init", &iov, 1);

    return rpcSend(connection, session, "connection init", &iov, 1, std::nullopt);

}



status_t RpcState::readConnectionInit(const sp<RpcSession::RpcConnection>& connection,
@@ -515,10 +515,18 @@ status_t RpcState::transactAddress(const sp<RpcSession::RpcConnection>& connecti 


    // Oneway calls have no sync point, so if many are sent before, whether this

    // is a twoway or oneway transaction, they may have filled up the socket.

    // So, make sure we drain them before polling.

    std::function<status_t()> drainRefs = [&] {

    // So, make sure we drain them before polling



    iovec iovs[]{

            {&command, sizeof(RpcWireHeader)},

            {&transaction, sizeof(RpcWireTransaction)},

            {const_cast<uint8_t*>(data.data()), data.dataSize()},

    };

    if (status_t status = rpcSend(connection, session, "transaction", iovs, arraysize(iovs),

                                  [&] {

                                      if (waitUs > kWaitLogUs) {

            ALOGE("Cannot send command, trying to process pending refcounts. Waiting %zuus. Too "

                                          ALOGE("Cannot send command, trying to process pending "

                                                "refcounts. Waiting %zuus. Too "

                                                "many oneway calls?",

                                                waitUs);

                                      }
@@ -530,16 +538,9 @@ status_t RpcState::transactAddress(const sp<RpcSession::RpcConnection>& connecti 
                                          waitUs = 1;

                                      }



        return drainCommands(connection, session, CommandType::CONTROL_ONLY);

    };



    iovec iovs[]{

            {&command, sizeof(RpcWireHeader)},

            {&transaction, sizeof(RpcWireTransaction)},

            {const_cast<uint8_t*>(data.data()), data.dataSize()},

    };

    if (status_t status =

                rpcSend(connection, session, "transaction", iovs, arraysize(iovs), drainRefs);

                                      return drainCommands(connection, session,

                                                           CommandType::CONTROL_ONLY);

                                  });

        status != OK) {

        // TODO(b/167966510): need to undo onBinderLeaving - we know the

        // refcount isn't successfully transferred.
@@ -640,7 +641,7 @@ status_t RpcState::sendDecStrongToTarget(const sp<RpcSession::RpcConnection>& co 
            .bodySize = sizeof(RpcDecStrong),

    };

    iovec iovs[]{{&cmd, sizeof(cmd)}, {&body, sizeof(body)}};

    return rpcSend(connection, session, "dec ref", iovs, arraysize(iovs));

    return rpcSend(connection, session, "dec ref", iovs, arraysize(iovs), std::nullopt);

}



status_t RpcState::getAndExecuteCommand(const sp<RpcSession::RpcConnection>& connection,
@@ -951,7 +952,7 @@ processTransactInternalTailCall: 
            {&rpcReply, sizeof(RpcWireReply)},

            {const_cast<uint8_t*>(reply.data()), reply.dataSize()},

    };

    return rpcSend(connection, session, "reply", iovs, arraysize(iovs));

    return rpcSend(connection, session, "reply", iovs, arraysize(iovs), std::nullopt);

}



status_t RpcState::processDecStrong(const sp<RpcSession::RpcConnection>& connection,

libs/binder/RpcState.h

+4 −3
Original line number Diff line number Diff line
@@ -178,9 +178,10 @@ private: 
        size_t mSize;

    };



    [[nodiscard]] status_t rpcSend(const sp<RpcSession::RpcConnection>& connection,

                                   const sp<RpcSession>& session, const char* what, iovec* iovs,

                                   int niovs, const std::function<status_t()>& altPoll = nullptr);

    [[nodiscard]] status_t rpcSend(

            const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,

            const char* what, iovec* iovs, int niovs,

            const std::optional<android::base::function_ref<status_t()>>& altPoll);

    [[nodiscard]] status_t rpcRec(const sp<RpcSession::RpcConnection>& connection,

                                  const sp<RpcSession>& session, const char* what, iovec* iovs,

                                  int niovs);

libs/binder/RpcTransportRaw.cpp

+11 −8
Original line number Diff line number Diff line
@@ -52,9 +52,10 @@ public: 
    }



    template <typename SendOrReceive>

    status_t interruptableReadOrWrite(FdTrigger* fdTrigger, iovec* iovs, int niovs,

                                      SendOrReceive sendOrReceiveFun, const char* funName,

                                      int16_t event, const std::function<status_t()>& altPoll) {

    status_t interruptableReadOrWrite(

            FdTrigger* fdTrigger, iovec* iovs, int niovs, SendOrReceive sendOrReceiveFun,

            const char* funName, int16_t event,

            const std::optional<android::base::function_ref<status_t()>>& altPoll) {

        MAYBE_WAIT_IN_FLAKE_MODE;



        if (niovs < 0) {
@@ -129,7 +130,7 @@ public: 
            }



            if (altPoll) {

                if (status_t status = altPoll(); status != OK) return status;

                if (status_t status = (*altPoll)(); status != OK) return status;

                if (fdTrigger->isTriggered()) {

                    return DEAD_OBJECT;

                }
@@ -142,14 +143,16 @@ public: 
        }

    }



    status_t interruptableWriteFully(FdTrigger* fdTrigger, iovec* iovs, int niovs,

                                     const std::function<status_t()>& altPoll) override {

    status_t interruptableWriteFully(

            FdTrigger* fdTrigger, iovec* iovs, int niovs,

            const std::optional<android::base::function_ref<status_t()>>& altPoll) override {

        return interruptableReadOrWrite(fdTrigger, iovs, niovs, sendmsg, "sendmsg", POLLOUT,

                                        altPoll);

    }



    status_t interruptableReadFully(FdTrigger* fdTrigger, iovec* iovs, int niovs,

                                    const std::function<status_t()>& altPoll) override {

    status_t interruptableReadFully(

            FdTrigger* fdTrigger, iovec* iovs, int niovs,

            const std::optional<android::base::function_ref<status_t()>>& altPoll) override {

        return interruptableReadOrWrite(fdTrigger, iovs, niovs, recvmsg, "recvmsg", POLLIN,

                                        altPoll);

    }