本文整理汇总了C#中System.Threading.Monitor类的典型用法代码示例。如果您正苦于以下问题：C# Monitor类的具体用法？C# Monitor怎么用？C# Monitor使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
Monitor类属于System.Threading命名空间，在下文中一共展示了Monitor类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
List<Task> tasks = new List<Task>();
Random rnd = new Random();
long total = 0;
int n = 0;
for (int taskCtr = 0; taskCtr < 10; taskCtr++)
tasks.Add(Task.Run( () => { int[] values = new int[10000];
int taskTotal = 0;
int taskN = 0;
int ctr = 0;
Monitor.Enter(rnd);
// Generate 10,000 random integers
for (ctr = 0; ctr < 10000; ctr++)
values[ctr] = rnd.Next(0, 1001);
Monitor.Exit(rnd);
taskN = ctr;
foreach (var value in values)
taskTotal += value;
Console.WriteLine("Mean for task {0,2}: {1:N2} (N={2:N0})",
Task.CurrentId, (taskTotal * 1.0)/taskN,
taskN);
Interlocked.Add(ref n, taskN);
Interlocked.Add(ref total, taskTotal);
} ));
try {
Task.WaitAll(tasks.ToArray());
Console.WriteLine("\nMean for all tasks: {0:N2} (N={1:N0})",
(total * 1.0)/n, n);
}
catch (AggregateException e) {
foreach (var ie in e.InnerExceptions)
Console.WriteLine("{0}: {1}", ie.GetType().Name, ie.Message);
}
}
}输出：
Mean for task 1: 499.04 (N=10,000) Mean for task 2: 500.42 (N=10,000) Mean for task 3: 499.65 (N=10,000) Mean for task 8: 502.59 (N=10,000) Mean for task 5: 502.75 (N=10,000) Mean for task 4: 494.88 (N=10,000) Mean for task 7: 499.22 (N=10,000) Mean for task 10: 496.45 (N=10,000) Mean for task 6: 499.75 (N=10,000) Mean for task 9: 502.79 (N=10,000) Mean for all tasks: 499.75 (N=100,000)
示例2: Access
//引入命名空间
using System;
using System.Threading;
internal class SyncResource
{
// Use a monitor to enforce synchronization.
public void Access()
{
lock(this) {
Console.WriteLine("Starting synchronized resource access on thread #{0}",
Thread.CurrentThread.ManagedThreadId);
if (Thread.CurrentThread.ManagedThreadId % 2 == 0)
Thread.Sleep(2000);
Thread.Sleep(200);
Console.WriteLine("Stopping synchronized resource access on thread #{0}",
Thread.CurrentThread.ManagedThreadId);
}
}
}
internal class UnSyncResource
{
// Do not enforce synchronization.
public void Access()
{
Console.WriteLine("Starting unsynchronized resource access on Thread #{0}",
Thread.CurrentThread.ManagedThreadId);
if (Thread.CurrentThread.ManagedThreadId % 2 == 0)
Thread.Sleep(2000);
Thread.Sleep(200);
Console.WriteLine("Stopping unsynchronized resource access on thread #{0}",
Thread.CurrentThread.ManagedThreadId);
}
}
public class App
{
private static int numOps;
private static AutoResetEvent opsAreDone = new AutoResetEvent(false);
private static SyncResource SyncRes = new SyncResource();
private static UnSyncResource UnSyncRes = new UnSyncResource();
public static void Main()
{
// Set the number of synchronized calls.
numOps = 5;
for (int ctr = 0; ctr <= 4; ctr++)
ThreadPool.QueueUserWorkItem(new WaitCallback(SyncUpdateResource));
// Wait until this WaitHandle is signaled.
opsAreDone.WaitOne();
Console.WriteLine("\t\nAll synchronized operations have completed.\n");
// Reset the count for unsynchronized calls.
numOps = 5;
for (int ctr = 0; ctr <= 4; ctr++)
ThreadPool.QueueUserWorkItem(new WaitCallback(UnSyncUpdateResource));
// Wait until this WaitHandle is signaled.
opsAreDone.WaitOne();
Console.WriteLine("\t\nAll unsynchronized thread operations have completed.\n");
}
static void SyncUpdateResource(Object state)
{
// Call the internal synchronized method.
SyncRes.Access();
// Ensure that only one thread can decrement the counter at a time.
if (Interlocked.Decrement(ref numOps) == 0)
// Announce to Main that in fact all thread calls are done.
opsAreDone.Set();
}
static void UnSyncUpdateResource(Object state)
{
// Call the unsynchronized method.
UnSyncRes.Access();
// Ensure that only one thread can decrement the counter at a time.
if (Interlocked.Decrement(ref numOps) == 0)
// Announce to Main that in fact all thread calls are done.
opsAreDone.Set();
}
}输出：
Starting synchronized resource access on thread #6 Stopping synchronized resource access on thread #6 Starting synchronized resource access on thread #7 Stopping synchronized resource access on thread #7 Starting synchronized resource access on thread #3 Stopping synchronized resource access on thread #3 Starting synchronized resource access on thread #4 Stopping synchronized resource access on thread #4 Starting synchronized resource access on thread #5 Stopping synchronized resource access on thread #5 All synchronized operations have completed. Starting unsynchronized resource access on Thread #7 Starting unsynchronized resource access on Thread #9 Starting unsynchronized resource access on Thread #10 Starting unsynchronized resource access on Thread #6 Starting unsynchronized resource access on Thread #3 Stopping unsynchronized resource access on thread #7 Stopping unsynchronized resource access on thread #9 Stopping unsynchronized resource access on thread #3 Stopping unsynchronized resource access on thread #10 Stopping unsynchronized resource access on thread #6 All unsynchronized thread operations have completed.
示例3: Main
//引入命名空间
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
int nTasks = 0;
List<Task> tasks = new List<Task>();
try {
for (int ctr = 0; ctr < 10; ctr++)
tasks.Add(Task.Run( () => { // Instead of doing some work, just sleep.
Thread.Sleep(250);
// Increment the number of tasks.
Monitor.Enter(nTasks);
try {
nTasks += 1;
}
finally {
Monitor.Exit(nTasks);
}
} ));
Task.WaitAll(tasks.ToArray());
Console.WriteLine("{0} tasks started and executed.", nTasks);
}
catch (AggregateException e) {
String msg = String.Empty;
foreach (var ie in e.InnerExceptions) {
Console.WriteLine("{0}", ie.GetType().Name);
if (! msg.Contains(ie.Message))
msg += ie.Message + Environment.NewLine;
}
Console.WriteLine("\nException Message(s):");
Console.WriteLine(msg);
}
}
}输出：
SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException SynchronizationLockException Exception Message(s): Object synchronization method was called from an unsynchronized block of code.
示例4: Main
//引入命名空间
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
public class Example
{
public static void Main()
{
int nTasks = 0;
object o = nTasks;
List<Task> tasks = new List<Task>();
try {
for (int ctr = 0; ctr < 10; ctr++)
tasks.Add(Task.Run( () => { // Instead of doing some work, just sleep.
Thread.Sleep(250);
// Increment the number of tasks.
Monitor.Enter(o);
try {
nTasks++;
}
finally {
Monitor.Exit(o);
}
} ));
Task.WaitAll(tasks.ToArray());
Console.WriteLine("{0} tasks started and executed.", nTasks);
}
catch (AggregateException e) {
String msg = String.Empty;
foreach (var ie in e.InnerExceptions) {
Console.WriteLine("{0}", ie.GetType().Name);
if (! msg.Contains(ie.Message))
msg += ie.Message + Environment.NewLine;
}
Console.WriteLine("\nException Message(s):");
Console.WriteLine(msg);
}
}
}输出：
10 tasks started and executed.
示例5: Object
// Define the lock object.
var obj = new Object();
// Define the critical section.
Monitor.Enter(obj);
try {
// Code to execute one thread at a time.
}
// catch blocks go here.
finally {
Monitor.Exit(obj);
}示例6: MethodToLock
[MethodImplAttribute(MethodImplOptions.Synchronized)]
void MethodToLock()
{
// Method implementation.
}