Struct salsa::Runtime [−][src]
pub struct Runtime { /* fields omitted */ }
Expand description
The salsa runtime stores the storage for all queries as well as tracking the query stack and dependencies between cycles.
Each new runtime you create (e.g., via Runtime::new
or
Runtime::default
) will have an independent set of query storage
associated with it. Normally, therefore, you only do this once, at
the start of your application.
Implementations
Create a new runtime; equivalent to Self::default
. This is
used when creating a new database.
A “synthetic write” causes the system to act as though some
input of durability durability
has changed. This is mostly
useful for profiling scenarios.
WARNING: Just like an ordinary write, this method triggers cancellation. If you invoke it while a snapshot exists, it will block until that snapshot is dropped – if that snapshot is owned by the current thread, this could trigger deadlock.
The unique identifier attached to this SalsaRuntime
. Each
snapshotted runtime has a distinct identifier.
Returns the database-key for the query that this thread is actively executing (if any).
Reports that the query depends on some state unknown to salsa.
Queries which report untracked reads will be re-executed in the next revision.
Acts as though the current query had read an input with the given durability; this will force the current query’s durability to be at most durability
.
This is mostly useful to control the durability level for on-demand inputs.