Upintegrate the common_time service from ics-aah.

Move the common_time service developed in the ics-aah branch back into
master.

The common_time service is a small service build to synchronize an
arbitrary timeline amongst peers on a local sub-net.  While running
and configured, the service will elect a master from the set of
available devices within the subnet, define a relationship between the
common_time timeline the local time timeline (provided by the local
time HAL), and then attempt to maintain synchronization between common
and local time by controlling the frequency of the local time clock
via the HAL, or by disciplining local time in the digital domain if
the local time HAL implementation does not support HW slewing.

On its own, the native common time service will do nothing until it is
configured.  The CommonTimeManagementService (running out of the
system server process) is responsible for implementing policy
regarding configuration and operation of the common_time service and
will be added in a subsequent CL.

Change-Id: I71292f9b9b1797665865689c4572c9d3a0552f64
Signed-off-by: John Grossman <johngro@google.com>

1 files changed, 508 insertions, 0 deletions

diff --git a/media/common_time/ICommonTimeConfig.cpp b/media/common_time/ICommonTimeConfig.cpp
new file mode 100644
index 0000000..8eb37cb
--- /dev/null
+++ b/media/common_time/ICommonTimeConfig.cpp
@@ -0,0 +1,508 @@
+/*
+ * Copyright (C) 2011 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 <linux/socket.h>
+
+#include <common_time/ICommonTimeConfig.h>
+#include <binder/Parcel.h>
+
+#include "utils.h"
+
+namespace android {
+
+/***** ICommonTimeConfig *****/
+
+enum {
+    GET_MASTER_ELECTION_PRIORITY = IBinder::FIRST_CALL_TRANSACTION,
+    SET_MASTER_ELECTION_PRIORITY,
+    GET_MASTER_ELECTION_ENDPOINT,
+    SET_MASTER_ELECTION_ENDPOINT,
+    GET_MASTER_ELECTION_GROUP_ID,
+    SET_MASTER_ELECTION_GROUP_ID,
+    GET_INTERFACE_BINDING,
+    SET_INTERFACE_BINDING,
+    GET_MASTER_ANNOUNCE_INTERVAL,
+    SET_MASTER_ANNOUNCE_INTERVAL,
+    GET_CLIENT_SYNC_INTERVAL,
+    SET_CLIENT_SYNC_INTERVAL,
+    GET_PANIC_THRESHOLD,
+    SET_PANIC_THRESHOLD,
+    GET_AUTO_DISABLE,
+    SET_AUTO_DISABLE,
+    FORCE_NETWORKLESS_MASTER_MODE,
+};
+
+const String16 ICommonTimeConfig::kServiceName("common_time.config");
+
+class BpCommonTimeConfig : public BpInterface<ICommonTimeConfig>
+{
+  public:
+    BpCommonTimeConfig(const sp<IBinder>& impl)
+        : BpInterface<ICommonTimeConfig>(impl) {}
+
+    virtual status_t getMasterElectionPriority(uint8_t *priority) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_MASTER_ELECTION_PRIORITY,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *priority = static_cast<uint8_t>(reply.readInt32());
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setMasterElectionPriority(uint8_t priority) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt32(static_cast<int32_t>(priority));
+        status_t status = remote()->transact(SET_MASTER_ELECTION_PRIORITY,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getMasterElectionEndpoint(struct sockaddr_storage *addr) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_MASTER_ELECTION_ENDPOINT,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                deserializeSockaddr(&reply, addr);
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setMasterElectionEndpoint(
+            const struct sockaddr_storage *addr) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        if (!canSerializeSockaddr(addr))
+            return BAD_VALUE;
+        if (NULL == addr) {
+            data.writeInt32(0);
+        } else {
+            data.writeInt32(1);
+            serializeSockaddr(&data, addr);
+        }
+        status_t status = remote()->transact(SET_MASTER_ELECTION_ENDPOINT,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getMasterElectionGroupId(uint64_t *id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_MASTER_ELECTION_GROUP_ID,
+                                             data,
+                                             &reply);
+
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *id = static_cast<uint64_t>(reply.readInt64());
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setMasterElectionGroupId(uint64_t id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt64(id);
+        status_t status = remote()->transact(SET_MASTER_ELECTION_GROUP_ID,
+                                             data,
+                                             &reply);
+
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getInterfaceBinding(String16& ifaceName) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_INTERFACE_BINDING,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                ifaceName = reply.readString16();
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setInterfaceBinding(const String16& ifaceName) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeString16(ifaceName);
+        status_t status = remote()->transact(SET_INTERFACE_BINDING,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getMasterAnnounceInterval(int *interval) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_MASTER_ANNOUNCE_INTERVAL,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *interval = reply.readInt32();
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setMasterAnnounceInterval(int interval) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt32(interval);
+        status_t status = remote()->transact(SET_MASTER_ANNOUNCE_INTERVAL,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getClientSyncInterval(int *interval) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_CLIENT_SYNC_INTERVAL,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *interval = reply.readInt32();
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setClientSyncInterval(int interval) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt32(interval);
+        status_t status = remote()->transact(SET_CLIENT_SYNC_INTERVAL,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getPanicThreshold(int *threshold) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_PANIC_THRESHOLD,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *threshold = reply.readInt32();
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setPanicThreshold(int threshold) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt32(threshold);
+        status_t status = remote()->transact(SET_PANIC_THRESHOLD,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t getAutoDisable(bool *autoDisable) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(GET_AUTO_DISABLE,
+                                             data,
+                                             &reply);
+        if (status == OK) {
+            status = reply.readInt32();
+            if (status == OK) {
+                *autoDisable = (0 != reply.readInt32());
+            }
+        }
+
+        return status;
+    }
+
+    virtual status_t setAutoDisable(bool autoDisable) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        data.writeInt32(autoDisable ? 1 : 0);
+        status_t status = remote()->transact(SET_AUTO_DISABLE,
+                                             data,
+                                             &reply);
+
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+
+    virtual status_t forceNetworklessMasterMode() {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICommonTimeConfig::getInterfaceDescriptor());
+        status_t status = remote()->transact(FORCE_NETWORKLESS_MASTER_MODE,
+                                             data,
+                                             &reply);
+
+        if (status == OK) {
+            status = reply.readInt32();
+        }
+
+        return status;
+    }
+};
+
+IMPLEMENT_META_INTERFACE(CommonTimeConfig, "android.os.ICommonTimeConfig");
+
+status_t BnCommonTimeConfig::onTransact(uint32_t code,
+                                   const Parcel& data,
+                                   Parcel* reply,
+                                   uint32_t flags) {
+    switch(code) {
+        case GET_MASTER_ELECTION_PRIORITY: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            uint8_t priority;
+            status_t status = getMasterElectionPriority(&priority);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt32(static_cast<int32_t>(priority));
+            }
+            return OK;
+        } break;
+
+        case SET_MASTER_ELECTION_PRIORITY: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            uint8_t priority = static_cast<uint8_t>(data.readInt32());
+            status_t status = setMasterElectionPriority(priority);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_MASTER_ELECTION_ENDPOINT: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            struct sockaddr_storage addr;
+            status_t status = getMasterElectionEndpoint(&addr);
+
+            if ((status == OK) && !canSerializeSockaddr(&addr)) {
+                status = UNKNOWN_ERROR;
+            }
+
+            reply->writeInt32(status);
+
+            if (status == OK) {
+                serializeSockaddr(reply, &addr);
+            }
+
+            return OK;
+        } break;
+
+        case SET_MASTER_ELECTION_ENDPOINT: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            struct sockaddr_storage addr;
+            int hasAddr = data.readInt32();
+
+            status_t status;
+            if (hasAddr) {
+                deserializeSockaddr(&data, &addr);
+                status = setMasterElectionEndpoint(&addr);
+            } else {
+                status = setMasterElectionEndpoint(&addr);
+            }
+
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_MASTER_ELECTION_GROUP_ID: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            uint64_t id;
+            status_t status = getMasterElectionGroupId(&id);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt64(id);
+            }
+            return OK;
+        } break;
+
+        case SET_MASTER_ELECTION_GROUP_ID: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            uint64_t id = static_cast<uint64_t>(data.readInt64());
+            status_t status = setMasterElectionGroupId(id);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_INTERFACE_BINDING: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            String16 ret;
+            status_t status = getInterfaceBinding(ret);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeString16(ret);
+            }
+            return OK;
+        } break;
+
+        case SET_INTERFACE_BINDING: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            String16 ifaceName;
+            ifaceName = data.readString16();
+            status_t status = setInterfaceBinding(ifaceName);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_MASTER_ANNOUNCE_INTERVAL: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int interval;
+            status_t status = getMasterAnnounceInterval(&interval);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt32(interval);
+            }
+            return OK;
+        } break;
+
+        case SET_MASTER_ANNOUNCE_INTERVAL: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int interval = data.readInt32();
+            status_t status = setMasterAnnounceInterval(interval);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_CLIENT_SYNC_INTERVAL: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int interval;
+            status_t status = getClientSyncInterval(&interval);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt32(interval);
+            }
+            return OK;
+        } break;
+
+        case SET_CLIENT_SYNC_INTERVAL: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int interval = data.readInt32();
+            status_t status = setClientSyncInterval(interval);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_PANIC_THRESHOLD: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int threshold;
+            status_t status = getPanicThreshold(&threshold);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt32(threshold);
+            }
+            return OK;
+        } break;
+
+        case SET_PANIC_THRESHOLD: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            int threshold = data.readInt32();
+            status_t status = setPanicThreshold(threshold);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case GET_AUTO_DISABLE: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            bool autoDisable;
+            status_t status = getAutoDisable(&autoDisable);
+            reply->writeInt32(status);
+            if (status == OK) {
+                reply->writeInt32(autoDisable ? 1 : 0);
+            }
+            return OK;
+        } break;
+
+        case SET_AUTO_DISABLE: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            bool autoDisable = (0 != data.readInt32());
+            status_t status = setAutoDisable(autoDisable);
+            reply->writeInt32(status);
+            return OK;
+        } break;
+
+        case FORCE_NETWORKLESS_MASTER_MODE: {
+            CHECK_INTERFACE(ICommonTimeConfig, data, reply);
+            status_t status = forceNetworklessMasterMode();
+            reply->writeInt32(status);
+            return OK;
+        } break;
+    }
+    return BBinder::onTransact(code, data, reply, flags);
+}
+
+}; // namespace android
+