new class PISemaphore

doc for PIProtectedVariable

main.cpp

@@ -12,8 +12,10 @@
 #include "pitranslator_p.h"
 #include "pivaluetree_conversions.h"
 
-using namespace PICoutManipulators;
+#include <windows.h>
 
+using namespace PICoutManipulators;
+/*
 class MyStr: public PIString {
 public:
 	MyStr(): PIString() {}
@@ -32,16 +34,70 @@ public:
 		return *this;
 	}
 };
+*/
 
 
+class RWL {
+public:
+	void lockWrite() { mutex.lock(); }
+	void unlockWrite() { mutex.unlock(); }
+	void lockRead() {}
+	void unlockRead() {}
+	PIMutex mutex;
+};
+
+PIMutex mutex;
+PISemaphore sem(10);
+
 int main(int argc, char * argv[]) {
-	PIProtectedVariable<MyStr> var;
-	// MyStr s("hello");
-	var.set("hello");
-	auto & v = var.lock();
-	// v        = "world";
-	var.unlock();
-	piCout << var.get();
+	/*sem.acquire(2);
+	piCout << sem.tryAcquire(2);
+	piCout << sem.available();
+	return 0;*/
+	PIThread t_w(
+		[] {
+			// PIMutexLocker _ml(mutex);
+			piCout << "write start ...";
+			piMSleep(500);
+			sem.release(11);
+			piCout << "write end" << sem.available() << "\n";
+		},
+		true,
+		1_Hz);
+
+	int cnt0 = 0, cnt1 = 0;
+	PIThread t_r0(
+		[&cnt0] {
+			// PIMutexLocker _ml(mutex);
+			piCout << "read0 start ...";
+			piMSleep(50);
+			sem.acquire(2);
+			bool ok = true; // sem.tryAcquire(2, 100_ms);
+			if (ok) ++cnt0;
+			piCout << "read0 end" << sem.available() << ok;
+		},
+		true,
+		10_Hz);
+	PIThread t_r1(
+		[&cnt1] {
+			// PIMutexLocker _ml(mutex);
+			piCout << "read1 start ...";
+			piMSleep(50);
+			sem.acquire(2);
+			bool ok = true; // sem.tryAcquire(2, 100_ms);
+			if (ok) ++cnt1;
+			piCout << "read1 end" << sem.available() << ok;
+		},
+		true,
+		11_Hz);
+
+	piSleep(5.);
+
+	t_r0.stopAndWait();
+	t_r1.stopAndWait();
+	t_w.stopAndWait();
+
+	piCout << cnt0 << cnt1;
 
 	/*PICodeParser parser;
 	parser.parseFile("client_server.h");