static void Main()
{
//lock语句会解析成使用Monitor类
object obj = new object();
bool lockTaken = false;
Monitor.TryEnter(obj, 500, ref lockTaken);//500 milliseconds。设置超时
if (lockTaken) //如果被锁定
{
try
{
// acquired the lock
// synchronized region for obj
}
finally
{
Monitor.Exit(obj);
}
}
else
{
// didn't get the lock, do something else
}
int numTasks = 20;
var state = new SharedState();
var tasks = new Task[numTasks];
for (int i = 0; i < numTasks; i++)
{
tasks[i] = new Task(new Job(state).DoTheJob);
tasks[i].Start();
}
for (int i = 0; i < numTasks; i++)
{
tasks[i].Wait();//waiting for thread finished.
}
Console.WriteLine("summarized {0}", state.State);
Console.ReadLine();
}
static void Main()
{
object obj = new object();
bool lockTaken = false;
Monitor.TryEnter(obj, 500, ref lockTaken);
if (lockTaken)
{
try
{
// acquired the lock
// synchronized region for obj
}
finally
{
Monitor.Exit(obj);
}
}
else
{
// didn't get the lock, do something else
}
int numTasks = 20;
var state = new SharedState();
var tasks = new Task[numTasks];
for (int i = 0; i < numTasks; i++)
{
tasks[i] = new Task(new Job(state).DoTheJob);
tasks[i].Start();
}
for (int i = 0; i < numTasks; i++)
{
tasks[i].Wait();
}
Console.WriteLine("summarized {0}", state.State);
}
static void SyncSample()
{
object obj = new object();
bool lockTaken = false;
Monitor.TryEnter(obj, 500, ref lockTaken);
if (lockTaken)
{
try
{
// acquired the lock
// synchronized region for obj
}
finally
{
Monitor.Exit(obj);
}
}
else
{
// didn't get the lock, do something else
}
int numTasks = 20;
var state = new SharedState();
var tasks = new Task[numTasks];
for (int i = 0; i < numTasks; i++)
{
tasks[i] = Task.Run(() => new Job(state).DoTheJob());
}
for (int i = 0; i < numTasks; i++)
{
tasks[i].Wait();
}
Console.WriteLine("summarized {0}", state.State);
}
public Job(SharedState sharedState)
{
this.sharedState = sharedState;
}
public Job(SharedState sharedState)
{
this.sharedState = sharedState;
}