From 60d47796ccfb3db3ab73017897f648678daddc83 Mon Sep 17 00:00:00 2001
From: Glenn Kasten <gkasten@google.com>
Date: Wed, 22 Jun 2011 17:42:23 -0700
Subject: Thread ID zero for androidSetThreadSchedulingGroup

Already implemented by androidSetThreadPriority but not documented

Change-Id: I85302b17092952065f3f3a4214d8d8abdd465dbd
---
 libs/utils/Threads.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libs')

diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index 15bb1d2..71352a8 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -316,6 +316,10 @@ int androidSetThreadSchedulingGroup(pid_t tid, int grp)
 #if defined(HAVE_PTHREADS)
     pthread_once(&gDoSchedulingGroupOnce, checkDoSchedulingGroup);
     if (gDoSchedulingGroup) {
+        // set_sched_policy does not support tid == 0
+        if (tid == 0) {
+            tid = androidGetTid();
+        }
         if (set_sched_policy(tid, (grp == ANDROID_TGROUP_BG_NONINTERACT) ?
                                           SP_BACKGROUND : SP_FOREGROUND)) {
             return PERMISSION_DENIED;
-- 
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