commit 8daa9af02dc0e63ce220e3fa95bf5fe4d6b7a99a
author Mark Salyzyn <salyzyn@google.com> Mon Apr 28 14:07:23 2014 -0700
committer JP Abgrall <jpa@google.com> Tue Apr 29 00:37:37 2014 +0000
tree a9777346b5a82e54c698f895271a99e6364c1df6
parent ab3d49b03527d5fc65664f66ddb78c98450c8c84

logd: add thread setname

- permits easier determination of logd thread at
  fault in a stack trace from debuggerd.

Bug: 14275676
Change-Id: Iac2c523147e2bcce34ab7ddcecd02582c5fa7cc0

logd/CommandListener.cpp

diff --git a/logd/CommandListener.cpp b/logd/CommandListener.cpp
index a7bf92b..1f3fd0e 100644
--- a/logd/CommandListener.cpp
+++ b/logd/CommandListener.cpp
@@ -21,6 +21,7 @@
 #include <netinet/in.h>
 #include <string.h>
 #include <stdlib.h>
+#include <sys/prctl.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 
@@ -66,8 +67,13 @@
         , mBuf(*buf)
 { }
 
+static void setname() {
+    prctl(PR_SET_NAME, "logd.control");
+}
+
 int CommandListener::ClearCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     if (!clientHasLogCredentials(cli)) {
         cli->sendMsg("Permission Denied");
         return 0;
@@ -96,6 +102,7 @@
 
 int CommandListener::GetBufSizeCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     if (argc < 2) {
         cli->sendMsg("Missing Argument");
         return 0;
@@ -121,6 +128,7 @@
 
 int CommandListener::SetBufSizeCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     if (!clientHasLogCredentials(cli)) {
         cli->sendMsg("Permission Denied");
         return 0;
@@ -154,6 +162,7 @@
 
 int CommandListener::GetBufSizeUsedCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     if (argc < 2) {
         cli->sendMsg("Missing Argument");
         return 0;
@@ -197,6 +206,7 @@
 
 int CommandListener::GetStatisticsCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     uid_t uid = cli->getUid();
     gid_t gid = cli->getGid();
     if (clientHasLogCredentials(cli)) {
@@ -236,6 +246,7 @@
 
 int CommandListener::GetPruneListCmd::runCommand(SocketClient *cli,
                                          int /*argc*/, char ** /*argv*/) {
+    setname();
     char *buf = NULL;
     mBuf.formatPrune(&buf);
     if (!buf) {
@@ -255,6 +266,7 @@
 
 int CommandListener::SetPruneListCmd::runCommand(SocketClient *cli,
                                          int argc, char **argv) {
+    setname();
     if (!clientHasLogCredentials(cli)) {
         cli->sendMsg("Permission Denied");
         return 0;