adb: clean up debug tracing a little.

Always use LOG() for debug tracing.
Remove useless D_lock. I believe it is useless to lock just before and after fprintf.

I verified the log output both on host and on device. The output looks fine to me.

Change-Id: I96ccfe408ff56864361551afe9ad464d197ae104
diff --git a/transport_local.cpp b/transport_local.cpp
index 6821cfc..0c4315a 100644
--- a/transport_local.cpp
+++ b/transport_local.cpp
@@ -51,22 +51,22 @@
 static int remote_read(apacket *p, atransport *t)
 {
     if(!ReadFdExactly(t->sfd, &p->msg, sizeof(amessage))){
-        D("remote local: read terminated (message)\n");
+        D("remote local: read terminated (message)");
         return -1;
     }
 
     if(check_header(p, t)) {
-        D("bad header: terminated (data)\n");
+        D("bad header: terminated (data)");
         return -1;
     }
 
     if(!ReadFdExactly(t->sfd, p->data, p->msg.data_length)){
-        D("remote local: terminated (data)\n");
+        D("remote local: terminated (data)");
         return -1;
     }
 
     if(check_data(p)) {
-        D("bad data: terminated (data)\n");
+        D("bad data: terminated (data)");
         return -1;
     }
 
@@ -78,7 +78,7 @@
     int   length = p->msg.data_length;
 
     if(!WriteFdExactly(t->sfd, &p->msg, sizeof(amessage) + length)) {
-        D("remote local: write terminated\n");
+        D("remote local: write terminated");
         return -1;
     }
 
@@ -108,7 +108,7 @@
     }
 
     if (fd >= 0) {
-        D("client: connected on remote on fd %d\n", fd);
+        D("client: connected on remote on fd %d", fd);
         close_on_exec(fd);
         disable_tcp_nagle(fd);
         std::string serial = android::base::StringPrintf("emulator-%d", console_port);
@@ -124,7 +124,7 @@
 static void *client_socket_thread(void *x)
 {
     adb_thread_setname("client_socket_thread");
-    D("transport: client_socket_thread() starting\n");
+    D("transport: client_socket_thread() starting");
     while (true) {
         int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT;
         int count = ADB_LOCAL_TRANSPORT_MAX;
@@ -148,14 +148,14 @@
     int port = (int) (uintptr_t) arg;
 
     adb_thread_setname("server socket");
-    D("transport: server_socket_thread() starting\n");
+    D("transport: server_socket_thread() starting");
     serverfd = -1;
     for(;;) {
         if(serverfd == -1) {
             std::string error;
             serverfd = network_inaddr_any_server(port, SOCK_STREAM, &error);
             if(serverfd < 0) {
-                D("server: cannot bind socket yet: %s\n", error.c_str());
+                D("server: cannot bind socket yet: %s", error.c_str());
                 adb_sleep_ms(1000);
                 continue;
             }
@@ -163,16 +163,16 @@
         }
 
         alen = sizeof(addr);
-        D("server: trying to get new connection from %d\n", port);
+        D("server: trying to get new connection from %d", port);
         fd = adb_socket_accept(serverfd, &addr, &alen);
         if(fd >= 0) {
-            D("server: new connection on fd %d\n", fd);
+            D("server: new connection on fd %d", fd);
             close_on_exec(fd);
             disable_tcp_nagle(fd);
             register_socket_transport(fd, "host", port, 1);
         }
     }
-    D("transport: server_socket_thread() exiting\n");
+    D("transport: server_socket_thread() exiting");
     return 0;
 }
 
@@ -234,7 +234,7 @@
     char con_name[32];
 
     adb_thread_setname("qemu socket");
-    D("transport: qemu_socket_thread() starting\n");
+    D("transport: qemu_socket_thread() starting");
 
     /* adb QEMUD service connection request. */
     snprintf(con_name, sizeof(con_name), "qemud:adb:%d", port);
@@ -244,7 +244,7 @@
     if (fd < 0) {
         /* This could be an older version of the emulator, that doesn't
          * implement adb QEMUD service. Fall back to the old TCP way. */
-        D("adb service is not available. Falling back to TCP socket.\n");
+        D("adb service is not available. Falling back to TCP socket.");
         adb_thread_create(server_socket_thread, arg);
         return 0;
     }
@@ -261,7 +261,7 @@
              * or 'ko' on failure. */
             res = adb_read(fd, tmp, sizeof(tmp));
             if (res != 2 || memcmp(tmp, _ok_resp, 2)) {
-                D("Accepting ADB host connection has failed.\n");
+                D("Accepting ADB host connection has failed.");
                 adb_close(fd);
             } else {
                 /* Host is connected. Register the transport, and start the
@@ -273,15 +273,15 @@
             /* Prepare for accepting of the next ADB host connection. */
             fd = qemu_pipe_open(con_name);
             if (fd < 0) {
-                D("adb service become unavailable.\n");
+                D("adb service become unavailable.");
                 return 0;
             }
         } else {
-            D("Unable to send the '%s' request to ADB service.\n", _accept_req);
+            D("Unable to send the '%s' request to ADB service.", _accept_req);
             return 0;
         }
     }
-    D("transport: qemu_socket_thread() exiting\n");
+    D("transport: qemu_socket_thread() exiting");
     return 0;
 }
 #endif  // !ADB_HOST
@@ -309,7 +309,7 @@
     debug_name = "server";
 #endif // !ADB_HOST
 
-    D("transport: local %s init\n", debug_name);
+    D("transport: local %s init", debug_name);
     if (!adb_thread_create(func, (void *) (uintptr_t) port)) {
         fatal_errno("cannot create local socket %s thread", debug_name);
     }
@@ -410,12 +410,12 @@
                     find_emulator_transport_by_adb_port_locked(adb_port);
             int index = get_available_local_transport_index_locked();
             if (existing_transport != NULL) {
-                D("local transport for port %d already registered (%p)?\n",
+                D("local transport for port %d already registered (%p)?",
                 adb_port, existing_transport);
                 fail = -1;
             } else if (index < 0) {
                 // Too many emulators.
-                D("cannot register more emulators. Maximum is %d\n",
+                D("cannot register more emulators. Maximum is %d",
                         ADB_LOCAL_TRANSPORT_MAX);
                 fail = -1;
             } else {