percept_db
(percept)Percept database.
Percept database.
DATA TYPES
activity_option() = {ts_min, timestamp()} | {ts_max, timestamp()} | {ts_exact, bool()} | {mfa, {atom(), atom(), byte()}} | {state, active | inactive} | {id, all | procs | ports | pid() | port()}
information_option() = all | procs | ports | pid() | port()
scheduler_option() = {ts_min, timestamp()} | {ts_max, timestamp()} | {ts_exact, bool()} | {id, scheduler_id()}
system_option() = start_ts | stop_ts
Functions
start() -> ok | {started, Pid} | {restarted, Pid}
Pid = pid()
Starts or restarts the percept database.
stop() -> not_started | {stopped, Pid}
Pid = pid()
Stops the percept database.
insert(Trace::tuple()) -> ok
Inserts a trace or profile message to the database.
select(Query::{atom(), Options}) -> Result
Synchronous call. Selects information based on a query.
Queries:
{system, Option} Option = system_option() Result = timestamp() {information, Options} Options = [information_option()] Result = [#information{}] {scheduler, Options} Options = [sceduler_option()] Result = [#activity{}] {activity, Options} Options = [activity_option()] Result = [#activity{}]
Note: selection of Id's are always OR all other options are considered AND.
select(Table::atom(), Options::list()) -> Result
Equivalent to select({Table, Options}).
consolidate() -> Result
Checks timestamp and state-flow inconsistencies in the the database.