CriticalSectionEnd (Function)

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CriticalSectionEnd (Function)

In french: SectionCritiqueFin

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:

// Utilisation d'une variable de type Section Critique
S is CriticalSection

// Utilisation pour un bloc de code
//---------------------------
USING S IN
	// code protégé par la section critique
	// un seul thread pourra exécuter ce code à un moment donné
END

Example

// Section critique sur une variable
t is array <critical section> of int
CriticalSectionStart(t)
// Manipulations sur le tableau par un seul thread en même temps
CriticalSectionEnd(t)

// Utilisation d'une section critique nommée
CriticalSectionStart("MaSection")
// Deux threads ne pourront pas exécuter ce code en même temps
...
CriticalSectionEnd("MaSection")

Syntax

Ending a CriticalSection on a code section: using the CriticalSection type Hide the details

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 Hide the details

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 Hide the details

CriticalSectionEnd([<Section name>])

<Section name>: Optional character string

Identifies the critical section.

Remarks

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.

Component: wd300vm.dll