From 093a30acdb8e0b1248af086c86b1f427e4d91acc Mon Sep 17 00:00:00 2001
From: Daniele Cattaneo <daniele3.cattaneo@mail.polimi.it>
Date: Tue, 4 Apr 2023 22:30:24 +0200
Subject: [PATCH] Add a method in CPUTimeCounter to get the current CPU time
consumed by a thread.
Useful for timing functions when other threads are simultaneously in execution.
Signed-off-by: Terraneo Federico <fede.tft@miosix.org>
---
miosix/kernel/cpu_time_counter.cpp | 13 +++++++++++++
miosix/kernel/cpu_time_counter.h | 6 ++++++
2 files changed, 19 insertions(+)
diff --git a/miosix/kernel/cpu_time_counter.cpp b/miosix/kernel/cpu_time_counter.cpp
index ea57ed48..854a3507 100644
--- a/miosix/kernel/cpu_time_counter.cpp
+++ b/miosix/kernel/cpu_time_counter.cpp
@@ -26,6 +26,7 @@
***************************************************************************/
#include "cpu_time_counter.h"
+#include "cpu_time_counter_private.h"
#include "kernel/kernel.h"
#ifdef WITH_CPU_TIME_COUNTER
@@ -36,6 +37,18 @@ Thread *CPUTimeCounter::head = nullptr;
Thread *CPUTimeCounter::tail = nullptr;
volatile unsigned int CPUTimeCounter::nThreads = 0;
+long long CPUTimeCounter::getActiveThreadTime()
+{
+ long long curTime, usedTime, lastAct;
+ {
+ PauseKernelLock pk;
+ curTime = IRQgetTime();
+ usedTime = runningThread->timeCounterData.usedCpuTime;
+ lastAct = runningThread->timeCounterData.lastActivation;
+ }
+ return usedTime + (curTime - lastAct);
+}
+
void CPUTimeCounter::PKremoveDeadThreads()
{
Thread *prev = nullptr;
diff --git a/miosix/kernel/cpu_time_counter.h b/miosix/kernel/cpu_time_counter.h
index d9e0f998..6e05ea08 100644
--- a/miosix/kernel/cpu_time_counter.h
+++ b/miosix/kernel/cpu_time_counter.h
@@ -148,6 +148,12 @@ public:
return iterator(nullptr);
}
+ /**
+ * \returns the amount of CPU run-time consumed up to now by the currently
+ * active thread.
+ */
+ static long long getActiveThreadTime();
+
private:
// The following methods are called from basic_scheduler to notify
// CPUTimeCounter of various events.
--
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