H.5 Pragma Detect_Blocking
The following pragma
requires an implementation to detect potentially blocking operations
during the execution of a protected operation or a parallel construct.
The form of a pragma
Detect_Blocking is as follows:
Detect_Blocking is a configuration pragma.
An implementation is required to detect a potentially
blocking operation that occurs during the execution of a protected operation
or a parallel construct defined within a compilation unit to which the
pragma applies, and to raise
Program_Error (see 9.5
An implementation is allowed to reject a compilation_unit
to which a pragma Detect_Blocking applies if a potentially blocking operation
is present directly within an entry_body
the body of a protected subprogram, or a parallel construct occurring
within the compilation unit.
NOTE An operation that causes a task
to be blocked within a foreign language domain is not defined to be potentially
blocking, and is unlikely to be detected.
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