BDE 4.14.0 Production release
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#include <bdlmt_eventscheduler.h>
Public Member Functions | |
EventSchedulerTestTimeSource (EventScheduler *scheduler) | |
bsls::TimeInterval | advanceTime (bsls::TimeInterval amount) |
bsls::TimeInterval | now () const |
This class provides a means to change the clock that is used by a given event-scheduler to determine when events should be triggered. Constructing a EventSchedulerTestTimeSource
alters the behavior of the supplied event-scheduler. After a test time-source is created, the underlying scheduler will run events according to a discrete timeline, whose successive values are determined by calls to advanceTime
on the test time-source, and can be retrieved by calling now
on that test time-source. Note that the "system-time" held by a test time-source does not correspond to the current system time. Test writers must use caution when scheduling absolute-time events so that they are scheduled relative to the test time-source's value for now
.
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explicit |
Create a test time-source object that will control the "system-time" observed by the specified scheduler
. Initialize now
to be an arbitrary time value. The behavior is undefined if any methods have previously been called on scheduler
.
bsls::TimeInterval bdlmt::EventSchedulerTestTimeSource::advanceTime | ( | bsls::TimeInterval | amount | ) |
Advance this object's current-time value by the specified amount
of time, notify the scheduler that the time has changed, and wait for the scheduler to process the events triggered by this change in time. Return the updated current-time value. The behavior is undefined unless amount
is positive, and now + amount
is within the range that can be represented with a bsls::TimeInterval
.
bsls::TimeInterval bdlmt::EventSchedulerTestTimeSource::now | ( | ) | const |
Return this object's current-time value. Upon construction, this method will return an arbitrary value. Subsequent calls to advanceTime
will adjust the arbitrary value forward.