Initial QSfera import

Server/vendor/github.com/gobwas/pool/option.go

@@ -0,0 +1,43 @@
+package pool
+
+import "github.com/gobwas/pool/internal/pmath"
+
+// Option configures pool.
+type Option func(Config)
+
+// Config describes generic pool configuration.
+type Config interface {
+	AddSize(n int)
+	SetSizeMapping(func(int) int)
+}
+
+// WithSizeLogRange returns an Option that will add logarithmic range of
+// pooling sizes containing [min, max] values.
+func WithLogSizeRange(min, max int) Option {
+	return func(c Config) {
+		pmath.LogarithmicRange(min, max, func(n int) {
+			c.AddSize(n)
+		})
+	}
+}
+
+// WithSize returns an Option that will add given pooling size to the pool.
+func WithSize(n int) Option {
+	return func(c Config) {
+		c.AddSize(n)
+	}
+}
+
+func WithSizeMapping(sz func(int) int) Option {
+	return func(c Config) {
+		c.SetSizeMapping(sz)
+	}
+}
+
+func WithLogSizeMapping() Option {
+	return WithSizeMapping(pmath.CeilToPowerOfTwo)
+}
+
+func WithIdentitySizeMapping() Option {
+	return WithSizeMapping(pmath.Identity)
+}