I am looking for a productive and simple logging library for C, which can output the log to a file. Displaying messages in the log I want to make like this: date-time tag message It would be nice to control the level of detail of messages and control the size of the file. I found two projects that are suitable for me. It log4c and nglogc. TRACE 700 is currently being phased out. TRACE® 700 is Trane’s legacy platform for the current version of the award-winning TRACE® 3D Plus design and analysis software tool that helps engineering professionals optimize their building design and operation though simulation. TRane Air Conditioning Economics, better known as TRACE®, has been. Orange County Library System features exhibitions from local, national and international artists. This month enjoy NYC Transit Exhibition: Instafame Phantom Art Volume 1: The Nic 707 Collection, Momma My Inspiration and America’s Game: The History of Baseball. View message trace results for messages less than 7 days old. After you run a message trace in the EAC, the results will be listed, sorted by date, with the most recent message appearing first. You can sort on any of the listed fields by clicking their headers. Clicking a column header a second time will reverse the sort order.
-->Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Provides a set of methods and properties that help you trace the execution of your code. This class cannot be inherited.
Examples
The following example uses Trace to indicate the beginning and the end of a program's execution. The example also uses the Trace.Indent and Trace.Unindent methods to distinguish the tracing output. For a more complete example of the use of Trace, see How to: Add Trace Statements to Application Code.
Remarks
You can use the properties and methods in the Trace class to instrument release builds. Instrumentation allows you to monitor the health of your application running in real-life settings. Tracing helps you isolate problems and fix them without disturbing a running system.
This class provides methods to display an Assert dialog box, and to emit an assertion that will always Fail. This class provides write methods in the following variations: Write, WriteLine, WriteIf, and WriteLineIf.
The BooleanSwitch and TraceSwitch classes provide means to dynamically control the tracing output. You can modify the values of these switches without recompiling your application. For information on using the configuration file to set a switch, see the Switch class and the How to: Create, Initialize and Configure Trace Switches topic.
You can customize the tracing output's target by adding TraceListener instances to or removing instances from the Listeners collection. The Listeners collection is shared by both the Debug and the Trace classes; adding a trace listener to either class adds the listener to both. By default, trace output is emitted using the DefaultTraceListener class.
Note
Adding a trace listener to the Listeners collection can cause an exception to be thrown while tracing, if a resource used by the trace listener is not available. The conditions and the exception thrown depend on the trace listener and cannot be enumerated in this topic. It may be useful to place calls to the Trace methods in try/catch blocks to detect and handle any exceptions from trace listeners.
Note
If you add trace listeners to partially trusted code, you will get a SecurityException exception, because adding trace listeners requires UnmanagedCode permission. To trace partially trusted code that is running in a sandbox in Visual Studio, do not add trace listeners. Instead, view the Trace and Debug messages in the Output window.
The Trace class provides properties to get or set the level of Indent, the IndentSize, and whether to AutoFlush after each write.
To set the AutoFlush and IndentSize for Trace, you can edit the configuration file that corresponds to the name of your application. The configuration file should be formatted like the following example:
The ConditionalAttribute attribute is applied to the methods of Trace. Compilers that support ConditionalAttribute ignore calls to these methods unless 'TRACE' is defined as a conditional compilation symbol. Refer to a compiler's documentation to determine whether ConditionalAttribute is supported and the syntax for defining a conditional compilation symbol.
Note
In Visual Studio projects, by default, the 'DEBUG' conditional compilation symbol is defined for debug builds, and the 'TRACE' symbol is defined for both debug and release builds. For information about how to disable this behavior, see the Visual Studio documentation.
To define the 'TRACE' conditional compilation symbol in C#, add the /d:TRACE option to the compiler command line when you compile your code using a command line, or add #define TRACE to the top of your file. In Visual Basic, add the /d:TRACE=True option to the compiler command line or add #Const TRACE=True to the file.
ConditionalAttribute is not supported by the C++ compiler. To provide equivalent functionality, you must enclose calls to the methods of Trace in an #if defined(TRACE) ... #endif block, and add the /DTRACE option to the compiler command line or add #define TRACE to the file.
Message Tracer Library Download
Properties
| AutoFlush | Gets or sets whether Flush() should be called on the Listeners after every write. |
| CorrelationManager | Gets the correlation manager for the thread for this trace. |
| IndentLevel | Gets or sets the indent level. |
| IndentSize | Gets or sets the number of spaces in an indent. |
| Listeners | Gets the collection of listeners that is monitoring the trace output. |
| UseGlobalLock | Gets or sets a value indicating whether the global lock should be used. |
Methods
| Assert(Boolean) | Checks for a condition; if the condition is |
| Assert(Boolean, String) | Checks for a condition; if the condition is |
| Assert(Boolean, String, String) | Checks for a condition; if the condition is |
| Close() | Flushes the output buffer, and then closes the Listeners. |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object) |
| Fail(String) | Emits the specified error message. |
| Fail(String, String) | Emits an error message, and a detailed error message. |
| Flush() | Flushes the output buffer, and causes buffered data to be written to the Listeners. |
| GetHashCode() | Serves as the default hash function. (Inherited from Object) |
| GetType() | Gets the Type of the current instance. (Inherited from Object) |
| Indent() | Increases the current IndentLevel by one. |
| MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object) |
| Refresh() | Refreshes the trace configuration data. |
| ToString() | Returns a string that represents the current object. (Inherited from Object) |
| TraceError(String) | Writes an error message to the trace listeners in the Listeners collection using the specified message. |
| TraceError(String, Object[]) | Writes an error message to the trace listeners in the Listeners collection using the specified array of objects and formatting information. |
| TraceInformation(String) | Writes an informational message to the trace listeners in the Listeners collection using the specified message. |
| TraceInformation(String, Object[]) | Writes an informational message to the trace listeners in the Listeners collection using the specified array of objects and formatting information. |
| TraceWarning(String) | Writes a warning message to the trace listeners in the Listeners collection using the specified message. |
| TraceWarning(String, Object[]) | Writes a warning message to the trace listeners in the Listeners collection using the specified array of objects and formatting information. |
| Unindent() | Decreases the current IndentLevel by one. |
| Write(Object) | Writes the value of the object's ToString() method to the trace listeners in the Listeners collection. |
| Write(Object, String) | Writes a category name and the value of the object's ToString() method to the trace listeners in the Listeners collection. |
| Write(String) | Writes a message to the trace listeners in the Listeners collection. |
| Write(String, String) | Writes a category name and a message to the trace listeners in the Listeners collection. |
| WriteIf(Boolean, Object) | Writes the value of the object's ToString() method to the trace listeners in the Listeners collection if a condition is |
| WriteIf(Boolean, Object, String) | Writes a category name and the value of the object's ToString() method to the trace listeners in the Listeners collection if a condition is |
| WriteIf(Boolean, String) | Writes a message to the trace listeners in the Listeners collection if a condition is |
| WriteIf(Boolean, String, String) | Writes a category name and message to the trace listeners in the Listeners collection if a condition is |
| WriteLine(Object) | Writes the value of the object's ToString() method to the trace listeners in the Listeners collection. |
| WriteLine(Object, String) | Writes a category name and the value of the object's ToString() method to the trace listeners in the Listeners collection. |
| WriteLine(String) | Writes a message to the trace listeners in the Listeners collection. |
| WriteLine(String, String) | Writes a category name and message to the trace listeners in the Listeners collection. |
| WriteLineIf(Boolean, Object) | Writes the value of the object's ToString() method to the trace listeners in the Listeners collection if a condition is |
| WriteLineIf(Boolean, Object, String) | Writes a category name and the value of the object's ToString() method to the trace listeners in the Listeners collection if a condition is |
| WriteLineIf(Boolean, String) | Writes a message to the trace listeners in the Listeners collection if a condition is |
| WriteLineIf(Boolean, String, String) | Writes a category name and message to the trace listeners in the Listeners collection if a condition is |
Applies to
Message Tracer Library App
Thread Safety
This type is thread safe.