From 047bdc9200fc63264f8b9a39f2ffa2f0031e816b Mon Sep 17 00:00:00 2001
From: Ralph Lange <Ralph.Lange@gmx.de>
Date: Tue, 18 Sep 2012 13:43:02 +0200
Subject: [PATCH] libCom/osi: (posix) keep scheduling policy by thread, to
 support SCHED_RR

---
 src/libCom/osi/os/Linux/osdThread.h | 1 +
 src/libCom/osi/os/posix/osdThread.c | 3 ++-
 src/libCom/osi/os/posix/osdThread.h | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/libCom/osi/os/Linux/osdThread.h b/src/libCom/osi/os/Linux/osdThread.h
index 859749837..5cc26d722 100644
--- a/src/libCom/osi/os/Linux/osdThread.h
+++ b/src/libCom/osi/os/Linux/osdThread.h
@@ -26,6 +26,7 @@ typedef struct epicsThreadOSD {
     pid_t              lwpId;
     pthread_attr_t     attr;
     struct sched_param schedParam;
+    int                schedPolicy;
     EPICSTHREADFUNC    createFunc;
     void              *createArg;
     epicsEventId       suspendEvent;
diff --git a/src/libCom/osi/os/posix/osdThread.c b/src/libCom/osi/os/posix/osdThread.c
index 92bc572f0..ba5a1269c 100644
--- a/src/libCom/osi/os/posix/osdThread.c
+++ b/src/libCom/osi/os/posix/osdThread.c
@@ -129,6 +129,7 @@ static void setSchedulingPolicy(epicsThreadOSD *pthreadInfo,int policy)
         &pthreadInfo->attr,&pthreadInfo->schedParam);
     checkStatusOnce(status,"pthread_attr_getschedparam");
     pthreadInfo->schedParam.sched_priority = getOssPriorityValue(pthreadInfo);
+    pthreadInfo->schedPolicy = policy;
     status = pthread_attr_setschedpolicy(
         &pthreadInfo->attr,policy);
     checkStatusOnce(status,"pthread_attr_setschedpolicy");
@@ -615,7 +616,7 @@ epicsShareFunc void epicsShareAPI epicsThreadSetPriority(epicsThreadId pthreadIn
         &pthreadInfo->attr,&pthreadInfo->schedParam);
     if(errVerbose) checkStatus(status,"pthread_attr_setschedparam");
     status = pthread_setschedparam(
-        pthreadInfo->tid,pcommonAttr->schedPolicy,&pthreadInfo->schedParam);
+        pthreadInfo->tid, pthreadInfo->schedPolicy, &pthreadInfo->schedParam);
     if(errVerbose) checkStatus(status,"pthread_setschedparam");
 #endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
 }
diff --git a/src/libCom/osi/os/posix/osdThread.h b/src/libCom/osi/os/posix/osdThread.h
index 8da859e94..7807fda6e 100644
--- a/src/libCom/osi/os/posix/osdThread.h
+++ b/src/libCom/osi/os/posix/osdThread.h
@@ -25,6 +25,7 @@ typedef struct epicsThreadOSD {
     pthread_t          tid;
     pthread_attr_t     attr;
     struct sched_param schedParam;
+    int                schedPolicy;
     EPICSTHREADFUNC    createFunc;
     void              *createArg;
     epicsEventId       suspendEvent;