libsysutils: New C++ system convenience library

        This library contains re-usable classes for common
    system level daemons. Initial consumers of this library
    are 'nexus' and 'vold2'

Signed-off-by: San Mehat <san@google.com>

6 files changed, 225 insertions, 0 deletions

diff --git a/include/sysutils/FrameworkCommand.h b/include/sysutils/FrameworkCommand.h
new file mode 100644
index 0000000..952e99a
--- /dev/null
+++ b/include/sysutils/FrameworkCommand.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2008 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 __FRAMEWORK_CMD_HANDLER_H
+#define __FRAMEWORK_CMD_HANDLER_H
+
+#include "../../../frameworks/base/include/utils/List.h"
+
+
+class FrameworkCommand { 
+private:
+    const char *mCommand;
+
+public:
+
+    FrameworkCommand(const char *cmd);
+    virtual ~FrameworkCommand() { }
+
+    virtual int runCommand(char *data);
+
+    const char *getCommand() { return mCommand; }
+};
+
+typedef android::List<FrameworkCommand *> FrameworkCommandCollection;
+#endif
diff --git a/include/sysutils/FrameworkListener.h b/include/sysutils/FrameworkListener.h
new file mode 100644
index 0000000..1454a6f
--- /dev/null
+++ b/include/sysutils/FrameworkListener.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2008 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 _FRAMEWORKSOCKETLISTENER_H
+#define _FRAMEWORKSOCKETLISTENER_H
+
+#include "SocketListener.h"
+#include "FrameworkCommand.h"
+
+class FrameworkListener : public SocketListener {
+private:
+    FrameworkCommandCollection *mCommands;
+
+public:
+    FrameworkListener(const char *socketName);
+    virtual ~FrameworkListener() {}
+
+protected:
+    void registerCmd(FrameworkCommand *cmd);
+    virtual bool onDataAvailable(int socket);
+
+private:
+    void dispatchCommand(char *cmd);
+};
+#endif
diff --git a/include/sysutils/FrameworkManager.h b/include/sysutils/FrameworkManager.h
new file mode 100644
index 0000000..8a24d33
--- /dev/null
+++ b/include/sysutils/FrameworkManager.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2008 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 _FRAMEWORKMANAGER_H
+#define _FRAMEWORKMANAGER_H
+
+#include <pthread.h>
+
+class FrameworkListener;
+
+class FrameworkManager {
+    int mDoorbell;        // Socket used to accept connections from framework
+    int mFwSock;          // Socket used to communicate with framework
+    const char *mSocketName;
+
+    FrameworkListener *mListener;
+    
+    pthread_mutex_t mWriteMutex;
+
+public:
+    FrameworkManager(FrameworkListener *Listener);
+    virtual ~FrameworkManager() {}
+
+    int run();
+    int sendMsg(char *msg);
+    int sendMsg(char *msg, char *data);
+};
+#endif
diff --git a/include/sysutils/NetlinkEvent.h b/include/sysutils/NetlinkEvent.h
new file mode 100644
index 0000000..95e83a3
--- /dev/null
+++ b/include/sysutils/NetlinkEvent.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2008 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 _NETLINKEVENT_H
+#define _NETLINKEVENT_H
+
+#define NL_PARAMS_MAX 32
+
+class NetlinkEvent {
+    int  mSeq;
+    char *mPath;
+    int  mAction;
+    char *mSubsystem;
+    char *mParams[NL_PARAMS_MAX];
+
+public:
+    const static int NlActionUnknown;
+    const static int NlActionAdd;
+    const static int NlActionRemove;
+    const static int NlActionChange;
+
+    NetlinkEvent();
+    virtual ~NetlinkEvent();
+
+    bool decode(char *buffer, int size);
+    const char *findParam(const char *paramName);
+
+    const char *getSubsystem() { return mSubsystem; }
+    int getAction() { return mAction; }
+};
+
+#endif
diff --git a/include/sysutils/NetlinkListener.h b/include/sysutils/NetlinkListener.h
new file mode 100644
index 0000000..8ac811c
--- /dev/null
+++ b/include/sysutils/NetlinkListener.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008 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 _NETLINKLISTENER_H
+#define _NETLINKLISTENER_H
+
+#include "SocketListener.h"
+
+class NetlinkEvent;
+
+class NetlinkListener : public SocketListener {
+    char mBuffer[64 * 1024];
+
+public:
+    NetlinkListener(int socket);
+    virtual ~NetlinkListener() {}
+protected:
+    virtual bool onDataAvailable(int socket);
+};
+#endif
diff --git a/include/sysutils/SocketListener.h b/include/sysutils/SocketListener.h
new file mode 100644
index 0000000..f079dba
--- /dev/null
+++ b/include/sysutils/SocketListener.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2008 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 _SOCKETLISTENER_H
+#define _SOCKETLISTENER_H
+
+class SocketListener {
+    int mSock;
+    int mCsock;
+    int mAcceptClients;
+    const char *mSocketName;
+
+public:
+    SocketListener(const char *socketName, bool acceptClients);
+    SocketListener(int socketFd, bool acceptClients);
+
+    virtual ~SocketListener() {}
+    virtual int run();
+
+protected:
+    virtual bool onDataAvailable(int socket);
+};
+#endif