From 6090df85a8a227db0bf407b7877b2777937e6427 Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Thu, 7 Mar 2013 15:34:28 -0800
Subject: [PATCH] rename binder services main thread to Binder_*

When a binder service's main thread joins the thread pool
it retains its name (whatever the exec name was), which is
very confusing in systrace.

we now rename that thread just like its friends in the
thread pool.

Change-Id: Ibb3b6ff07304b247cfc6fb1694e72350c579513e
---
 include/utils/AndroidThreads.h |  3 +++
 libs/utils/Threads.cpp         | 40 +++++++++++++++++++---------------
 2 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/include/utils/AndroidThreads.h b/include/utils/AndroidThreads.h
index f67648fd6..4eee14d7e 100644
--- a/include/utils/AndroidThreads.h
+++ b/include/utils/AndroidThreads.h
@@ -56,6 +56,9 @@ extern int androidCreateRawThreadEtc(android_thread_func_t entryFunction,
                                      size_t threadStackSize,
                                      android_thread_id_t *threadId);
 
+// set the same of the running thread
+extern void androidSetThreadName(const char* name);
+
 // Used by the Java Runtime to control how threads are created, so that
 // they can be proper and lovely Java threads.
 typedef int (*android_create_thread_fn)(android_thread_func_t entryFunction,
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index f201fc744..cbf4ef628 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -90,30 +90,34 @@ struct thread_data_t {
         }
         
         if (name) {
-#if defined(HAVE_PRCTL)
-            // Mac OS doesn't have this, and we build libutil for the host too
-            int hasAt = 0;
-            int hasDot = 0;
-            char *s = name;
-            while (*s) {
-                if (*s == '.') hasDot = 1;
-                else if (*s == '@') hasAt = 1;
-                s++;
-            }
-            int len = s - name;
-            if (len < 15 || hasAt || !hasDot) {
-                s = name;
-            } else {
-                s = name + len - 15;
-            }
-            prctl(PR_SET_NAME, (unsigned long) s, 0, 0, 0);
-#endif
+            androidSetThreadName(name);
             free(name);
         }
         return f(u);
     }
 };
 
+void androidSetThreadName(const char* name) {
+#if defined(HAVE_PRCTL)
+    // Mac OS doesn't have this, and we build libutil for the host too
+    int hasAt = 0;
+    int hasDot = 0;
+    const char *s = name;
+    while (*s) {
+        if (*s == '.') hasDot = 1;
+        else if (*s == '@') hasAt = 1;
+        s++;
+    }
+    int len = s - name;
+    if (len < 15 || hasAt || !hasDot) {
+        s = name;
+    } else {
+        s = name + len - 15;
+    }
+    prctl(PR_SET_NAME, (unsigned long) s, 0, 0, 0);
+#endif
+}
+
 int androidCreateRawThreadEtc(android_thread_func_t entryFunction,
                                void *userData,
                                const char* threadName,