From 582fc32574a3b158c81e49cb00e6ae59205e66ba Mon Sep 17 00:00:00 2001
From: Antonin Kral <a.kral@bobek.cz>
Date: Thu, 17 Mar 2011 00:05:43 +0100
Subject: Imported Upstream version 1.8.0

---
 dbtests/threadedtests.cpp | 154 +++++++++++++++++++++++++++++++++++-----------
 1 file changed, 118 insertions(+), 36 deletions(-)

(limited to 'dbtests/threadedtests.cpp')

diff --git a/dbtests/threadedtests.cpp b/dbtests/threadedtests.cpp
index af413cc..805b2d5 100644
--- a/dbtests/threadedtests.cpp
+++ b/dbtests/threadedtests.cpp
@@ -21,6 +21,7 @@
 #include "../bson/util/atomic_int.h"
 #include "../util/concurrency/mvar.h"
 #include "../util/concurrency/thread_pool.h"
+#include "../util/timer.h"
 #include <boost/thread.hpp>
 #include <boost/bind.hpp>
 
@@ -29,34 +30,108 @@
 namespace ThreadedTests {
 
     template <int nthreads_param=10>
-    class ThreadedTest{
-        public:
-            virtual void setup() {} //optional
-            virtual void subthread() = 0;
-            virtual void validate() = 0;
+    class ThreadedTest {
+    public:
+        virtual void setup() {} //optional
+        virtual void subthread() = 0;
+        virtual void validate() = 0;
 
-            static const int nthreads = nthreads_param;
+        static const int nthreads = nthreads_param;
 
-            void run(){
-                setup();
+        void run() {
+            setup();
+            launch_subthreads(nthreads);
+            validate();
+        }
 
-                launch_subthreads(nthreads);
+        virtual ~ThreadedTest() {}; // not necessary, but makes compilers happy
 
-                validate();
-            }
+    private:
+        void launch_subthreads(int remaining) {
+            if (!remaining) return;
 
-            virtual ~ThreadedTest() {}; // not necessary, but makes compilers happy
+            boost::thread athread(boost::bind(&ThreadedTest::subthread, this));
 
-        private:
-            void launch_subthreads(int remaining){
-                if (!remaining) return;
+            launch_subthreads(remaining - 1);
 
-                boost::thread athread(boost::bind(&ThreadedTest::subthread, this));
-
-                launch_subthreads(remaining - 1);
+            athread.join();
+        }
+    };
 
-                athread.join();
+    class MongoMutexTest : public ThreadedTest<135> {
+#if defined(_DEBUG)
+        enum { N = 5000 };
+#else
+        enum { N = 40000 };
+#endif
+        MongoMutex *mm;
+    public:
+        void run() {
+            Timer t;
+            cout << "MongoMutexTest N:" << N << endl;
+            ThreadedTest<135>::run();
+            cout << "MongoMutexTest " << t.millis() << "ms" << endl;
+        }
+    private:
+        virtual void setup() {
+            mm = new MongoMutex("MongoMutexTest");
+        }
+        virtual void subthread() {
+            Client::initThread("mongomutextest");
+            sleepmillis(0);
+            for( int i = 0; i < N; i++ ) {
+                if( i % 7 == 0 ) {
+                    mm->lock_shared();
+                    mm->lock_shared();
+                    mm->unlock_shared();
+                    mm->unlock_shared();
+                }
+                else if( i % 7 == 1 ) {
+                    mm->lock_shared();
+                    ASSERT( mm->atLeastReadLocked() );
+                    mm->unlock_shared();
+                }
+                else if( i % 7 == 2 ) {
+                    mm->lock();
+                    ASSERT( mm->isWriteLocked() );
+                    mm->unlock();
+                }
+                else if( i % 7 == 3 ) {
+                    mm->lock();
+                    mm->lock_shared();
+                    ASSERT( mm->isWriteLocked() );
+                    mm->unlock_shared();
+                    mm->unlock();
+                }
+                else if( i % 7 == 4 ) {
+                    mm->lock();
+                    mm->releaseEarly();
+                    mm->unlock();
+                }
+                else if( i % 7 == 5 ) {
+                    if( mm->lock_try(1) ) {
+                        mm->unlock();
+                    }
+                }
+                else if( i % 7 == 6 ) {
+                    if( mm->lock_shared_try(0) ) {
+                        mm->unlock_shared();
+                    }
+                }
+                else {
+                    mm->lock_shared();
+                    mm->unlock_shared();
+                }
             }
+            cc().shutdown();
+        }
+        virtual void validate() {
+            ASSERT( !mm->atLeastReadLocked() );
+            mm->lock();
+            mm->unlock();
+            mm->lock_shared();
+            mm->unlock_shared();
+        }
     };
 
     // Tested with up to 30k threads
@@ -64,13 +139,13 @@ namespace ThreadedTests {
         static const int iterations = 1000000;
         AtomicUInt target;
 
-        void subthread(){
-            for(int i=0; i < iterations; i++){
+        void subthread() {
+            for(int i=0; i < iterations; i++) {
                 //target.x++; // verified to fail with this version
                 target++;
             }
         }
-        void validate(){
+        void validate() {
             ASSERT_EQUALS(target.x , unsigned(nthreads * iterations));
 
             AtomicUInt u;
@@ -80,6 +155,12 @@ namespace ThreadedTests {
             ASSERT_EQUALS(2u, u--);
             ASSERT_EQUALS(0u, --u);
             ASSERT_EQUALS(0u, u);
+            
+            u++;
+            ASSERT( u > 0 );
+
+            u--;
+            ASSERT( ! ( u > 0 ) );
         }
     };
 
@@ -87,10 +168,10 @@ namespace ThreadedTests {
         static const int iterations = 10000;
         MVar<int> target;
 
-        public:
+    public:
         MVarTest() : target(0) {}
-        void subthread(){
-            for(int i=0; i < iterations; i++){
+        void subthread() {
+            for(int i=0; i < iterations; i++) {
                 int val = target.take();
 #if BOOST_VERSION >= 103500
                 //increase chances of catching failure
@@ -99,30 +180,30 @@ namespace ThreadedTests {
                 target.put(val+1);
             }
         }
-        void validate(){
+        void validate() {
             ASSERT_EQUALS(target.take() , nthreads * iterations);
         }
     };
 
-    class ThreadPoolTest{
+    class ThreadPoolTest {
         static const int iterations = 10000;
         static const int nThreads = 8;
 
         AtomicUInt counter;
-        void increment(int n){
-            for (int i=0; i<n; i++){
+        void increment(int n) {
+            for (int i=0; i<n; i++) {
                 counter++;
             }
         }
 
-        public:
-        void run(){
+    public:
+        void run() {
             ThreadPool tp(nThreads);
 
-            for (int i=0; i < iterations; i++){
+            for (int i=0; i < iterations; i++) {
                 tp.schedule(&ThreadPoolTest::increment, this, 2);
             }
-            
+
             tp.join();
 
             ASSERT(counter == (unsigned)(iterations * 2));
@@ -131,7 +212,7 @@ namespace ThreadedTests {
 
     class LockTest {
     public:
-        void run(){
+        void run() {
             // quick atomicint wrap test
             // MSGID likely assumes this semantic
             AtomicUInt counter = 0xffffffff;
@@ -145,14 +226,15 @@ namespace ThreadedTests {
 
     class All : public Suite {
     public:
-        All() : Suite( "threading" ){
+        All() : Suite( "threading" ) {
         }
 
-        void setupTests(){
+        void setupTests() {
             add< IsAtomicUIntAtomic >();
             add< MVarTest >();
             add< ThreadPoolTest >();
             add< LockTest >();
+            add< MongoMutexTest >();
         }
     } myall;
 }
-- 
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