diff options
Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go')
-rw-r--r-- | vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go b/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go deleted file mode 100644 index d57bdd29e..000000000 --- a/vendor/github.com/jackc/pgx/v5/internal/stmtcache/stmtcache.go +++ /dev/null @@ -1,45 +0,0 @@ -// Package stmtcache is a cache for statement descriptions. -package stmtcache - -import ( - "crypto/sha256" - "encoding/hex" - - "github.com/jackc/pgx/v5/pgconn" -) - -// StatementName returns a statement name that will be stable for sql across multiple connections and program -// executions. -func StatementName(sql string) string { - digest := sha256.Sum256([]byte(sql)) - return "stmtcache_" + hex.EncodeToString(digest[0:24]) -} - -// Cache caches statement descriptions. -type Cache interface { - // Get returns the statement description for sql. Returns nil if not found. - Get(sql string) *pgconn.StatementDescription - - // Put stores sd in the cache. Put panics if sd.SQL is "". Put does nothing if sd.SQL already exists in the cache. - Put(sd *pgconn.StatementDescription) - - // Invalidate invalidates statement description identified by sql. Does nothing if not found. - Invalidate(sql string) - - // InvalidateAll invalidates all statement descriptions. - InvalidateAll() - - // GetInvalidated returns a slice of all statement descriptions invalidated since the last call to RemoveInvalidated. - GetInvalidated() []*pgconn.StatementDescription - - // RemoveInvalidated removes all invalidated statement descriptions. No other calls to Cache must be made between a - // call to GetInvalidated and RemoveInvalidated or RemoveInvalidated may remove statement descriptions that were - // never seen by the call to GetInvalidated. - RemoveInvalidated() - - // Len returns the number of cached prepared statement descriptions. - Len() int - - // Cap returns the maximum number of cached prepared statement descriptions. - Cap() int -} |