probability_store.h File Reference

Write-once probabilities: the entry points other files use. More...

#include "postgres.h"
#include "provsql_utils.h"

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Functions
void	provsql_set_prob_tracked (const pg_uuid_t *token, double prob)
	Write token's probability and record the write, so that a rollback of the current (sub)transaction clears it.

Detailed Description

Write-once probabilities: the entry points other files use.

See probability_store.c for what "written once" means and how a rolled-back write is undone.

Definition in file probability_store.h.

Function Documentation

provsql_set_prob_tracked()

void provsql_set_prob_tracked	(	const pg_uuid_t *	token,
		double	prob )

Write token's probability and record the write, so that a rollback of the current (sub)transaction clears it.

Raises when the gate carries no probability, when prob is outside [0, 1], and when the gate already holds a different probability. Writing the value the gate already holds is a no-op.

Definition at line 268 of file probability_store.c.

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