Imported Upstream version 1.0.2upstream/1.0.2

1 files changed, 20 insertions, 1 deletions

diff --git a/Process.h b/Process.h
index 2c3e0c3..c5f5934 100644
--- a/Process.h
+++ b/Process.h
@@ -21,6 +21,7 @@ in the source distribution for its full text.
 
 #include "Object.h"
 #include "Affinity.h"
+#include "IOPriority.h"
 #include <sys/types.h>
 
 #ifndef Process_isKernelThread
@@ -53,6 +54,7 @@ typedef enum ProcessField_ {
    #ifdef HAVE_CGROUP
    CGROUP,
    #endif
+   IO_PRIORITY,
    LAST_PROCESSFIELD
 } ProcessField;
 
@@ -91,6 +93,7 @@ typedef struct Process_ {
    long int priority;
    long int nice;
    long int nlwp;
+   IOPriority ioPriority;
    char starttime_show[8];
    time_t starttime_ctime;
    #ifdef DEBUG
@@ -175,6 +178,22 @@ void Process_toggleTag(Process* this);
 
 bool Process_setPriority(Process* this, int priority);
 
+bool Process_changePriorityBy(Process* this, size_t delta);
+
+IOPriority Process_updateIOPriority(Process* this);
+
+bool Process_setIOPriority(Process* this, IOPriority ioprio);
+
+/*
+[1] Note that before kernel 2.6.26 a process that has not asked for
+an io priority formally uses "none" as scheduling class, but the
+io scheduler will treat such processes as if it were in the best
+effort class. The priority within the best effort class will  be
+dynamically  derived  from  the  cpu  nice level of the process:
+extern io_priority;
+*/
+#define Process_effectiveIOPriority(p_) (IOPriority_class(p_->ioPriority) == IOPRIO_CLASS_NONE ? IOPriority_tuple(IOPRIO_CLASS_BE, (p_->nice + 20) / 5) : p_->ioPriority)
+
 #ifdef HAVE_LIBHWLOC
 
 Affinity* Process_getAffinity(Process* this);
@@ -189,7 +208,7 @@ bool Process_setAffinity(Process* this, Affinity* affinity);
 
 #endif
 
-void Process_sendSignal(Process* this, int sgn);
+void Process_sendSignal(Process* this, size_t sgn);
 
 int Process_pidCompare(const void* v1, const void* v2);