Diff: Lib_Misc/ThreadFlag.cpp

Revision:

0:d2e117716219

diff -r 000000000000 -r d2e117716219 Lib_Misc/ThreadFlag.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Lib_Misc/ThreadFlag.cpp	Sun May 02 19:32:30 2021 +0000
@@ -0,0 +1,57 @@
+/*
+ * ThreadFlag.cpp
+ * Copyright (c) 2019, ZHAW
+ * All rights reserved.
+ *
+ *  Created on: 29.11.2019
+ *      Author: Marcel Honegger
+ */
+
+#include "ThreadFlag.h"
+
+using namespace std;
+
+uint32_t ThreadFlag::threadFlags = 0;
+
+/**
+ * Creates a signal object and assignes a unique flag.
+ */
+ThreadFlag::ThreadFlag() {
+    
+    mutex.lock();
+    
+    uint32_t n = 0;
+    while ((((1 << n) & threadFlags) > 0) && (n < 30)) n++;
+    threadFlag = (1 << n);
+    
+    mutex.unlock();
+}
+
+/**
+ * Deletes the signal object and releases the assigned flag.
+ */
+ThreadFlag::~ThreadFlag() {
+    
+    mutex.lock();
+    
+    threadFlags &= ~threadFlag;
+    
+    mutex.unlock();
+}
+
+/**
+ * Gets the assigned thread flag.
+ */
+uint32_t ThreadFlag::read() {
+    
+    return threadFlag;
+}
+
+/**
+ * The empty operator is a shorthand notation of the <code>read()</code> method.
+ */
+ThreadFlag::operator uint32_t() {
+    
+    return read();
+}
+