#define ANDROID_ICOMMONCLOCK_H
#include <stdint.h>
+#include <linux/socket.h>
#include <binder/IInterface.h>
#include <binder/IServiceManager.h>
public:
DECLARE_META_INTERFACE(CommonClockListener);
- virtual void onClockSync(uint32_t timelineID) = 0;
- virtual void onClockSyncLoss() = 0;
+ virtual void onTimelineChanged(uint64_t timelineID) = 0;
};
class BnCommonClockListener : public BnInterface<ICommonClockListener> {
static const String16 kServiceName;
// a reserved invalid timeline ID
- static const uint32_t kInvalidTimelineID;
+ static const uint64_t kInvalidTimelineID;
+
+ // a reserved invalid error estimate
+ static const int32_t kErrorEstimateUnknown;
+
+ enum State {
+ // the device just came up and is trying to discover the master
+ STATE_INITIAL,
+
+ // the device is a client of a master
+ STATE_CLIENT,
+
+ // the device is acting as master
+ STATE_MASTER,
+
+ // the device has lost contact with its master and needs to participate
+ // in the election of a new master
+ STATE_RONIN,
+
+ // the device is waiting for announcement of the newly elected master
+ STATE_WAIT_FOR_ELECTION,
+ };
virtual status_t isCommonTimeValid(bool* valid, uint32_t* timelineID) = 0;
virtual status_t commonTimeToLocalTime(int64_t commonTime,
virtual status_t getCommonFreq(uint64_t* freq) = 0;
virtual status_t getLocalTime(int64_t* localTime) = 0;
virtual status_t getLocalFreq(uint64_t* freq) = 0;
+ virtual status_t getEstimatedError(int32_t* estimate) = 0;
+ virtual status_t getTimelineID(uint64_t* id) = 0;
+ virtual status_t getState(State* state) = 0;
+ virtual status_t getMasterAddr(struct sockaddr_storage* addr) = 0;
virtual status_t registerListener(
const sp<ICommonClockListener>& listener) = 0;
sp<ICommonClock> clk = interface_cast<ICommonClock>(binder);
return clk;
}
-
- enum State {
- // the device just came up and is trying to discover the master
- STATE_INITIAL,
-
- // the device is a client of a master
- STATE_CLIENT,
-
- // the device is acting as master
- STATE_MASTER,
-
- // the device has lost contact with its master and needs to participate
- // in the election of a new master
- STATE_RONIN,
-
- // the device is waiting for announcement of the newly elected master
- STATE_WAIT_FOR_ELECTION,
- };
-
};
class BnCommonClock : public BnInterface<ICommonClock> {
LOCAL_MODULE_TAGS := optional
LOCAL_SRC_FILES := cc_helper.cpp \
local_clock.cpp \
- ICommonClock.cpp
+ ICommonClock.cpp \
+ utils.cpp
LOCAL_SHARED_LIBRARIES := libbinder \
libhardware \
libutils
/*
- * Copyright (C) 2011 The Android Open Source Project
+ * Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+#include <linux/socket.h>
#include <common_time/ICommonClock.h>
#include <binder/Parcel.h>
+#include "utils.h"
+
namespace android {
/***** ICommonClock *****/
GET_COMMON_FREQ,
GET_LOCAL_TIME,
GET_LOCAL_FREQ,
+ GET_ESTIMATED_ERROR,
+ GET_TIMELINE_ID,
+ GET_STATE,
+ GET_MASTER_ADDRESS,
REGISTER_LISTENER,
UNREGISTER_LISTENER,
};
const String16 ICommonClock::kServiceName("common_time.clock");
const uint64_t ICommonClock::kInvalidTimelineID = 0;
+const int32_t ICommonClock::kErrorEstimateUnknown = 0x7FFFFFFF;
class BpCommonClock : public BpInterface<ICommonClock>
{
return status;
}
+ virtual status_t getEstimatedError(int32_t* estimate) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ICommonClock::getInterfaceDescriptor());
+ status_t status = remote()->transact(GET_ESTIMATED_ERROR, data, &reply);
+ if (status == OK) {
+ status = reply.readInt32();
+ if (status == OK) {
+ *estimate = reply.readInt32();
+ }
+ }
+ return status;
+ }
+
+ virtual status_t getTimelineID(uint64_t* id) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ICommonClock::getInterfaceDescriptor());
+ status_t status = remote()->transact(GET_TIMELINE_ID, data, &reply);
+ if (status == OK) {
+ status = reply.readInt32();
+ if (status == OK) {
+ *id = static_cast<uint64_t>(reply.readInt64());
+ }
+ }
+ return status;
+ }
+
+ virtual status_t getState(State* state) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ICommonClock::getInterfaceDescriptor());
+ status_t status = remote()->transact(GET_STATE, data, &reply);
+ if (status == OK) {
+ status = reply.readInt32();
+ if (status == OK) {
+ *state = static_cast<State>(reply.readInt32());
+ }
+ }
+ return status;
+ }
+
+ virtual status_t getMasterAddr(struct sockaddr_storage* addr) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ICommonClock::getInterfaceDescriptor());
+ status_t status = remote()->transact(GET_MASTER_ADDRESS, data, &reply);
+ if (status == OK) {
+ status = reply.readInt32();
+ if (status == OK)
+ deserializeSockaddr(&reply, addr);
+ }
+ return status;
+ }
+
virtual status_t registerListener(
const sp<ICommonClockListener>& listener) {
Parcel data, reply;
return OK;
} break;
+ case GET_ESTIMATED_ERROR: {
+ CHECK_INTERFACE(ICommonClock, data, reply);
+ int32_t error;
+ status_t status = getEstimatedError(&error);
+ reply->writeInt32(status);
+ if (status == OK) {
+ reply->writeInt32(error);
+ }
+ return OK;
+ } break;
+
+ case GET_TIMELINE_ID: {
+ CHECK_INTERFACE(ICommonClock, data, reply);
+ uint64_t id;
+ status_t status = getTimelineID(&id);
+ reply->writeInt32(status);
+ if (status == OK) {
+ reply->writeInt64(static_cast<int64_t>(id));
+ }
+ return OK;
+ } break;
+
+ case GET_STATE: {
+ CHECK_INTERFACE(ICommonClock, data, reply);
+ State state;
+ status_t status = getState(&state);
+ reply->writeInt32(status);
+ if (status == OK) {
+ reply->writeInt32(static_cast<int32_t>(state));
+ }
+ return OK;
+ } break;
+
+ case GET_MASTER_ADDRESS: {
+ CHECK_INTERFACE(ICommonClock, data, reply);
+ struct sockaddr_storage addr;
+ status_t status = getMasterAddr(&addr);
+
+ if ((status == OK) && !canSerializeSockaddr(&addr)) {
+ status = UNKNOWN_ERROR;
+ }
+
+ reply->writeInt32(status);
+
+ if (status == OK) {
+ serializeSockaddr(reply, &addr);
+ }
+
+ return OK;
+ } break;
+
case REGISTER_LISTENER: {
CHECK_INTERFACE(ICommonClock, data, reply);
sp<ICommonClockListener> listener =
/***** ICommonClockListener *****/
enum {
- ON_CLOCK_SYNC = IBinder::FIRST_CALL_TRANSACTION,
- ON_CLOCK_SYNC_LOSS,
+ ON_TIMELINE_CHANGED = IBinder::FIRST_CALL_TRANSACTION,
};
class BpCommonClockListener : public BpInterface<ICommonClockListener>
BpCommonClockListener(const sp<IBinder>& impl)
: BpInterface<ICommonClockListener>(impl) {}
- virtual void onClockSync(uint32_t timelineID) {
- Parcel data, reply;
- data.writeInterfaceToken(
- ICommonClockListener::getInterfaceDescriptor());
- data.writeInt32(timelineID);
- remote()->transact(ON_CLOCK_SYNC, data, &reply);
- }
-
- virtual void onClockSyncLoss() {
+ virtual void onTimelineChanged(uint64_t timelineID) {
Parcel data, reply;
data.writeInterfaceToken(
ICommonClockListener::getInterfaceDescriptor());
- remote()->transact(ON_CLOCK_SYNC_LOSS, data, &reply);
+ data.writeInt64(timelineID);
+ remote()->transact(ON_TIMELINE_CHANGED, data, &reply);
}
};
status_t BnCommonClockListener::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
switch(code) {
- case ON_CLOCK_SYNC: {
- CHECK_INTERFACE(ICommonClockListener, data, reply);
- uint32_t timelineID = data.readInt32();
- onClockSync(timelineID);
- return NO_ERROR;
- } break;
-
- case ON_CLOCK_SYNC_LOSS: {
+ case ON_TIMELINE_CHANGED: {
CHECK_INTERFACE(ICommonClockListener, data, reply);
- onClockSyncLoss();
+ uint32_t timelineID = data.readInt64();
+ onTimelineChanged(timelineID);
return NO_ERROR;
} break;
}
--- /dev/null
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <arpa/inet.h>
+#include <linux/socket.h>
+
+#include <binder/Parcel.h>
+
+namespace android {
+
+bool canSerializeSockaddr(const struct sockaddr_storage* addr) {
+ switch (addr->ss_family) {
+ case AF_INET:
+ case AF_INET6:
+ return true;
+ default:
+ return false;
+ }
+}
+
+void serializeSockaddr(Parcel* p, const struct sockaddr_storage* addr) {
+ switch (addr->ss_family) {
+ case AF_INET: {
+ const struct sockaddr_in* s =
+ reinterpret_cast<const struct sockaddr_in*>(addr);
+ p->writeInt32(AF_INET);
+ p->writeInt32(ntohl(s->sin_addr.s_addr));
+ p->writeInt32(static_cast<int32_t>(ntohs(s->sin_port)));
+ } break;
+
+ case AF_INET6: {
+ const struct sockaddr_in6* s =
+ reinterpret_cast<const struct sockaddr_in6*>(addr);
+ const int32_t* a =
+ reinterpret_cast<const int32_t*>(s->sin6_addr.s6_addr);
+ p->writeInt32(AF_INET6);
+ p->writeInt32(ntohl(a[0]));
+ p->writeInt32(ntohl(a[1]));
+ p->writeInt32(ntohl(a[2]));
+ p->writeInt32(ntohl(a[3]));
+ p->writeInt32(static_cast<int32_t>(ntohs(s->sin6_port)));
+ p->writeInt32(ntohl(s->sin6_flowinfo));
+ p->writeInt32(ntohl(s->sin6_scope_id));
+ } break;
+ }
+}
+
+void deserializeSockaddr(const Parcel* p, struct sockaddr_storage* addr) {
+ memset(addr, 0, sizeof(addr));
+
+ addr->ss_family = p->readInt32();
+ switch(addr->ss_family) {
+ case AF_INET: {
+ struct sockaddr_in* s =
+ reinterpret_cast<struct sockaddr_in*>(addr);
+ s->sin_addr.s_addr = htonl(p->readInt32());
+ s->sin_port = htons(static_cast<uint16_t>(p->readInt32()));
+ } break;
+
+ case AF_INET6: {
+ struct sockaddr_in6* s =
+ reinterpret_cast<struct sockaddr_in6*>(addr);
+ int32_t* a = reinterpret_cast<int32_t*>(s->sin6_addr.s6_addr);
+
+ a[0] = htonl(p->readInt32());
+ a[1] = htonl(p->readInt32());
+ a[2] = htonl(p->readInt32());
+ a[3] = htonl(p->readInt32());
+ s->sin6_port = htons(static_cast<uint16_t>(p->readInt32()));
+ s->sin6_flowinfo = htonl(p->readInt32());
+ s->sin6_scope_id = htonl(p->readInt32());
+ } break;
+ }
+}
+
+} // namespace android
--- /dev/null
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_LIBCOMMONCLOCK_UTILS_H
+#define ANDROID_LIBCOMMONCLOCK_UTILS_H
+
+#include <linux/socket.h>
+
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+
+namespace android {
+
+extern bool canSerializeSockaddr(const struct sockaddr_storage* addr);
+extern void serializeSockaddr(Parcel* p, const struct sockaddr_storage* addr);
+extern status_t deserializeSockaddr(const Parcel* p,
+ struct sockaddr_storage* addr);
+
+}; // namespace android
+
+#endif // ANDROID_LIBCOMMONCLOCK_UTILS_H
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