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>
diff --git a/libsysutils/src/FrameworkListener.cpp b/libsysutils/src/FrameworkListener.cpp
new file mode 100644
index 0000000..bbf3f3a
--- /dev/null
+++ b/libsysutils/src/FrameworkListener.cpp
@@ -0,0 +1,76 @@
+/*
+ * 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.
+ */
+#include <errno.h>
+
+#define LOG_TAG "FrameworkListener"
+
+#include <cutils/log.h>
+
+#include <sysutils/FrameworkListener.h>
+#include <sysutils/FrameworkCommand.h>
+
+FrameworkListener::FrameworkListener(const char *socketName) :
+                            SocketListener(socketName, true) {
+    mCommands = new FrameworkCommandCollection();
+}
+
+bool FrameworkListener::onDataAvailable(int socket) {
+    char buffer[101];
+    int len;
+
+    if ((len = read(socket, buffer, sizeof(buffer) -1)) < 0) {
+        LOGE("read() failed (%s)", strerror(errno));
+        return errno;
+    } else if (!len) {
+        LOGW("Lost connection to client");
+        return false;
+    }
+
+    int start = 0;
+    int i;
+
+    buffer[len] = '\0';
+
+    for (i = 0; i < len; i++) {
+        if (buffer[i] == '\0') {
+            dispatchCommand(buffer + start);
+            start = i + 1;
+        }
+    }
+    return true;
+}
+
+void FrameworkListener::registerCmd(FrameworkCommand *cmd) {
+    mCommands->push_back(cmd);
+}
+
+void FrameworkListener::dispatchCommand(char *cmd) {
+    FrameworkCommandCollection::iterator i;
+
+    for (i = mCommands->begin(); i != mCommands->end(); ++i) {
+        FrameworkCommand *c = *i;
+
+        if (!strncmp(cmd, c->getCommand(), strlen(c->getCommand()))) {
+            if (c->runCommand(cmd)) {
+                LOGW("Handler '%s' error (%s)", c->getCommand(), strerror(errno));
+            }
+            return;
+        }
+    }
+
+    LOGE("No cmd handlers defined for '%s'", cmd);
+}
+