Seize multiple discrete resources atomically

Attempts to acquire a list of resources in a single C++ call, avoiding per-resource R-to-C++ round trips.

Usage

seize_all(resources, policy = "all_or_none", amounts = NULL, priorities = NULL)

Arguments

resources

A list of resource_discrete objects.

policy

"all_or_none" (default) — acquires all only if all are available; queues for the first bottleneck without holding any others. "sequential" — acquires in list order, holding partial acquisitions; user is responsible for avoiding deadlocks.

amounts

Integer vector of units per resource (default 1L for each).

priorities

Integer vector of priorities per resource (default 1L).

Value

TRUE if all acquired, FALSE if queued for a bottleneck resource, NA if rejected.