CriticalSectionEnd (Function)

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CriticalSectionEnd (Function)

Marks the end of a critical section: another thread will be able to run the code.

To mark the start of critical section, use CriticalSectionStart.

When the calls to CriticalSectionStart and CriticalSectionEnd are in the same section of the code, it is recommended to use the type CriticalSection and the syntax USE ... IN.
Example:

// Using a Critical Section variable
S is CriticalSection

// Use for a code block
//---------------------------
utiliser S IN
	// code protected by the critical section
	// only one thread will execute this code at a given moment
END

Ejemplo

// Critical section on a variable
t is array <critical section> of int
CriticalSectionStart(t)
// Operations on the array by one only thread at a time
CriticalSectionEnd(t)

// Use of a named critical section
CriticalSectionStart("MySection")
// Two threads will not be able to run this code at the same time
...
CriticalSectionEnd("MySection")

Sintaxis

Ending a CriticalSection on a code section: using the CriticalSection type Ocultar los detalles

CriticalSectionStart(<Critical section>)

<Critical section>: CriticalSection variable

Name of the CriticalSection variable used to identify the critical section.

Ending a critical section on a variable Ocultar los detalles

CriticalSectionEnd([<Variable name>])

<Variable name>: Any type

Name of WLanguage variable that was protected in a critical section by CriticalSectionStart. This variable must be defined with the attribute <critical section>.

Ending a named critical section on a code section Ocultar los detalles

CriticalSectionEnd([<Section name>])

<Section name>: Optional character string

Identifies the critical section.

Observaciones

Miscellaneous

For more details on critical sections, see Managing the critical sections.
If a thread is destroyed while it is found in a critical section, the critical section is automatically freed.
A single thread is allowed in all the sections with the same name.
If sections use a different name, a thread can run the code of one section while another thread runs the code of another section.

Componente: wd300vm.dll

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Versión mínima requerida

Versión 9

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Última modificación: 27/03/2025

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