##// END OF EJS Templates
implab » ImplabNet
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1 1 namespace Implab.Diagnostics {
2 2 struct OperationContext {
3 3 public readonly static OperationContext EMPTY = new OperationContext(LogicalOperation.EMPTY, false);
4 4
5 5 LogicalOperation m_initial;
6 6 LogicalOperation m_current;
7 7 bool m_ownership;
8 8
9 9 public OperationContext(LogicalOperation operation, bool ownership) {
10 10 Safe.ArgumentNotNull(operation, "operation");
11 11
12 12 m_initial = operation;
13 13 m_current = operation;
14 14 m_ownership = ownership;
15 15 }
16 16
17 17 public LogicalOperation CurrentOperation {
18 18 get { return m_current; }
19 19 }
20 20
21 21 public void BeginLogicalOperation(string name) {
22 22 m_current = new LogicalOperation(name, m_current);
23 23 }
24 24
25 25 public LogicalOperation DetachLogicalOperation() {
26 26 var detached = m_current;
27 27 if (m_current != LogicalOperation.EMPTY) {
28 28 if (m_current != m_initial)
29 29 m_current = m_current.Parent;
30 30 else if (m_ownership)
31 31 m_current = LogicalOperation.EMPTY;
32 32 else {
33 TraceLog.TraceWarning("DetachLogicalOperation can't be applied in the current context");
33 TraceLog.TraceWarning("DetachLogicalOperation can't be performed in the current context");
34 34 detached = LogicalOperation.EMPTY;
35 35 }
36 36 } else {
37 TraceLog.TraceWarning("DetachLogicalOperation can't be applied in the current context");
37 TraceLog.TraceWarning("DetachLogicalOperation can't be performed in the current context");
38 38 }
39 39
40 40 return detached;
41 41 }
42 42
43 43 public LogicalOperation EndLogicalOperation() {
44 44 var current = m_current;
45 45 if (m_current != LogicalOperation.EMPTY && (m_current != m_initial || m_ownership)) {
46 46 m_current = m_current.Parent;
47 47 if (current == m_initial) {
48 48 // we have complete the owned operation
49 49 m_initial = m_current;
50 50 m_ownership = false;
51 51 }
52 52 } else {
53 TraceLog.TraceWarning("EndLogicalOperation can't be applied in the current context");
53 TraceLog.TraceWarning("EndLogicalOperation can't be performed in the current context");
54 54 }
55 55 return current;
56 56 }
57 57
58 58 public void Leave() {
59 59
60 60 if ((m_ownership && m_current != LogicalOperation.EMPTY) || (!m_ownership && m_current != m_initial) )
61 61 TraceLog.TraceWarning("Trying to leave unfinished logical operation {0}", m_current.Name);
62 62 }
63 63 }
64 64 }
65 65
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@@ -1,83 +1,82
1 1 using System;
2 2 using System.Collections.Generic;
3 3 using System.Threading;
4 4
5 5 namespace Implab.Diagnostics {
6 6 /// <summary>
7 7 /// Trace context is bound to the specific thread, each thread has it's own ThreadContext.
8 8 /// </summary>
9 9 /// <remarks>
10 10 /// ThreadContext manages relations between logical operations and threads.
11 11 /// </remarks>
12 12 public class TraceContext {
13 13
14 14 [ThreadStatic]
15 15 static TraceContext _instance;
16 16
17 17 OperationContext m_current = OperationContext.EMPTY;
18 18 readonly Stack<OperationContext> m_stack = new Stack<OperationContext>();
19 19 readonly int m_threadId;
20 20
21 21 public static TraceContext Instance {
22 22 get {
23 23 if (_instance == null)
24 24 _instance = new TraceContext();
25 25 return _instance;
26 26 }
27 27 }
28 28
29 29 public TraceContext() {
30 30 m_threadId = Thread.CurrentThread.ManagedThreadId;
31 31 }
32 32
33 33 public int ThreadId {
34 34 get { return m_threadId; }
35 35 }
36 36
37 37 public LogicalOperation CurrentOperation {
38 38 get {
39 39 return m_current.CurrentOperation;
40 40 }
41 41 }
42 42
43 43 public void EnterLogicalOperation(LogicalOperation operation, bool takeOwnership) {
44 44 //var prev = CurrentOperation;
45 45 //LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(takeOwnership ? TraceEventType.Attach : TraceEventType.Enter, String.Format("{0} -> {1}",prev.Name, operation.Name)));
46 46 m_stack.Push(m_current);
47 47 m_current = new OperationContext(operation, takeOwnership);
48 48 }
49 49
50 50 public void StartLogicalOperation(string name) {
51 51 LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(TraceEventType.OperationStarted, name));
52 52 m_current.BeginLogicalOperation(name);
53 53 }
54 54
55 55 public void StartLogicalOperation() {
56 56 StartLogicalOperation(String.Empty);
57 57 }
58 58
59 public void EndLogicalOperation() {
60 var op = m_current.EndLogicalOperation();
61 LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(TraceEventType.OperationCompleted, String.Format("-{0} : {1}ms",op.Name, op.Duration)));
59 public LogicalOperation EndLogicalOperation() {
60 return m_current.EndLogicalOperation();
62 61 }
63 62
64 63 public LogicalOperation DetachLogicalOperation() {
65 64 var prev = m_current.DetachLogicalOperation();
66 65 //LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(TraceEventType.Detach, String.Format("{0} -> {1}",prev.Name, CurrentOperation.Name)));
67 66 return prev;
68 67 }
69 68
70 69 public void Leave() {
71 70 if (m_stack.Count > 0) {
72 71 m_current.Leave();
73 72 //var prev = CurrentOperation;
74 73 m_current = m_stack.Pop();
75 74 //LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(TraceEventType.Leave, String.Format("{0} -> {1}", prev.Name, CurrentOperation.Name)));
76 75 } else {
77 76 TraceLog.TraceWarning("Attempt to leave the last operation context");
78 77 m_current = OperationContext.EMPTY;
79 78 }
80 79 }
81 80 }
82 81 }
83 82
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@@ -1,29 +1,47
1 1 using System;
2 2
3 3 namespace Implab.Diagnostics {
4 4 public class TraceEvent {
5 5 public string Message {
6 6 get;
7 7 private set;
8 8 }
9 9
10 10 public TraceEventType EventType {
11 11 get;
12 12 private set;
13 13 }
14 14
15 public TraceEvent(TraceEventType type, string message) {
15 /// <summary>
16 /// The logical operation this event belongs to.
17 /// </summary>
18 public LogicalOperation Operation {
19 get;
20 private set;
21 }
22
23 /// <summary>
24 /// Gets the time offset in milliseconds from the start of the operation, if the operation is not specified the value is zero.
25 /// </summary>
26 public int OperationTime {
27 get;
28 private set;
29 }
30
31 public TraceEvent(LogicalOperation operation, TraceEventType type, string message) {
16 32 EventType = type;
17 33 Message = message;
34 Operation = operation;
35 if (operation != null)
36 OperationTime = operation.Duration;
18 37 }
19 38
20 39 public override string ToString() {
21 /*return EventType == TraceEventType.Information ? Message : String.Format("{0}: {1}", EventType, Message);*/
22 40 return Message;
23 41 }
24 42
25 public static TraceEvent Create(TraceEventType type, string format, params object[] args) {
26 return new TraceEvent(type, format == null ? String.Empty : String.Format(format, args));
43 public static TraceEvent Create(LogicalOperation operation, TraceEventType type, string format, params object[] args) {
44 return new TraceEvent(operation, type, format == null ? String.Empty : String.Format(format, args));
27 45 }
28 46 }
29 47 }
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@@ -1,50 +1,70
1 1 using System;
2 2 using System.Collections.Generic;
3 3 using System.Diagnostics;
4 4 using System.Linq;
5 5 using System.Text;
6 6 using System.Threading.Tasks;
7 7
8 8 namespace Implab.Diagnostics {
9 9 /// <summary>
10 /// Класс для ΠΏΡƒΠ±Π»ΠΈΠΊΠ°Ρ†ΠΈΠΈ событий выполнСния ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹, события ΠΏΡƒΠ±Π»ΠΈΠΊΡƒΡŽΡ‚ΡΡ Ρ‡Π΅Ρ€Π΅Π· <see cref="LogChannel{TraceEvent}"/>.
11 /// Π–ΡƒΡ€Π½Π°Π» трассировки ΠΎΡ‚Ρ€Π°ΠΆΠ°Π΅Ρ‚ логичСский Ρ…ΠΎΠ΄ выполнСния ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡ‹ ΠΈ сущСствуСт всСгда, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ тСсно связан с
12 /// контСкстом трассировки.
10 /// This class is used to trace a logical flow of the application, it publishes events to the default <see cref="TraceEvent"/> channel.
13 11 /// </summary>
14 12 public static class TraceLog {
13 /// <summary>
14 /// Starts the logical operation nested to the current operation nested to the current one.
15 /// </summary>
15 16 [Conditional("TRACE")]
16 17 public static void StartLogicalOperation() {
17 18 TraceContext.Instance.StartLogicalOperation();
19
18 20 }
19 21
22 /// <summary>
23 /// Starts the logical operation with the specified name, this name is usefull in logs.
24 /// </summary>
25 /// <param name="name">Name.</param>
20 26 [Conditional("TRACE")]
21 27 public static void StartLogicalOperation(string name) {
22 28 TraceContext.Instance.StartLogicalOperation(name);
23 29 }
24 30
31 /// <summary>
32 /// Ends the logical operation and restores the previous one.
33 /// </summary>
25 34 [Conditional("TRACE")]
26 35 public static void EndLogicalOperation() {
27 TraceContext.Instance.EndLogicalOperation();
36 var op = TraceContext.Instance.EndLogicalOperation();
37 LogChannel<TraceEvent>.Default.LogEvent(new TraceEvent(TraceEventType.OperationCompleted, String.Format("-{0} : {1}ms",op.Name, op.Duration)));
28 38 }
29 39
40 /// <summary>
41 /// Writes an informational message.
42 /// </summary>
43 /// <param name="format">Format.</param>
44 /// <param name="arguments">Arguments.</param>
30 45 [Conditional("TRACE")]
31 46 public static void TraceInformation(string format, params object[] arguments) {
32 47 LogChannel<TraceEvent>.Default.LogEvent(TraceEvent.Create(TraceEventType.Information, format, arguments));
33 48 }
34 49
50 /// <summary>
51 /// Writes a warning message.
52 /// </summary>
53 /// <param name="format">Format.</param>
54 /// <param name="arguments">Arguments.</param>
35 55 [Conditional("TRACE")]
36 56 public static void TraceWarning(string format, params object[] arguments) {
37 57 LogChannel<TraceEvent>.Default.LogEvent(TraceEvent.Create(TraceEventType.Warning, format, arguments));
38 58 }
39 59
40 60 [Conditional("TRACE")]
41 61 public static void TraceError(string format, params object[] arguments) {
42 62 LogChannel<TraceEvent>.Default.LogEvent(TraceEvent.Create(TraceEventType.Error, format, arguments));
43 63 }
44 64
45 65 [Conditional("TRACE")]
46 66 public static void TraceError(Exception err) {
47 67 TraceError("{0}", err);
48 68 }
49 69 }
50 70 }
General Comments 3
Under Review
sergey
author
Comment #7
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Auto status change to "Under Review"

Approved
sergey
author
Comment #8
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ok, latest stable version should be in default

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