Create a FastPostSemaphore object initially having the specified count. Use the monotonic system clock as the clock against which the absTime timeouts passed to the timedWait methods are interpreted (see {Supported Clock-Types} in the component-level documentation).
Declared in <bslmt_fastpostsemaphore.h>
FastPostSemaphore(
int count,
std::chrono::steady_clock const&);