[#493] node/config: Implement sections of local object storage

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-node/config/engine/shard/blobstor/blobovnicza/config.go

@@ -0,0 +1,93 @@
+package blobovniczaconfig
+
+import (
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
+)
+
+// Config is a wrapper over the config section
+// which provides access to Blobovnicza configurations.
+type Config config.Config
+
+// config defaults
+const (
+	// SizeDefault is a default limit of estimates of Blobovnicza size.
+	SizeDefault = 1 << 30
+
+	// ShallowDepthDefault is a default shallow dir depth.
+	ShallowDepthDefault = 2
+
+	// ShallowWidthDefault is a default shallow dir width.
+	ShallowWidthDefault = 16
+
+	// OpenedCacheSizeDefault is a default cache size of opened Blobovnicza's.
+	OpenedCacheSizeDefault = 16
+)
+
+// From wraps config section into Config.
+func From(c *config.Config) *Config {
+	return (*Config)(c)
+}
+
+// Size returns value of "size" config parameter.
+//
+// Returns SizeDefault if value is not a positive number.
+func (x *Config) Size() uint64 {
+	s := config.UintSafe(
+		(*config.Config)(x),
+		"size",
+	)
+
+	if s > 0 {
+		return s
+	}
+
+	return SizeDefault
+}
+
+// ShallowDepth returns value of "shallow_depth" config parameter.
+//
+// Returns ShallowDepthDefault if value is not a positive number.
+func (x *Config) ShallowDepth() uint64 {
+	d := config.UintSafe(
+		(*config.Config)(x),
+		"shallow_depth",
+	)
+
+	if d > 0 {
+		return d
+	}
+
+	return ShallowDepthDefault
+}
+
+// ShallowWidth returns value of "shallow_width" config parameter.
+//
+// Returns ShallowWidthDefault if value is not a positive number.
+func (x *Config) ShallowWidth() uint64 {
+	d := config.UintSafe(
+		(*config.Config)(x),
+		"shallow_width",
+	)
+
+	if d > 0 {
+		return d
+	}
+
+	return ShallowWidthDefault
+}
+
+// OpenedCacheSize returns value of "opened_cache_size" config parameter.
+//
+// Returns OpenedCacheSizeDefault if value is not a positive number.
+func (x *Config) OpenedCacheSize() int {
+	d := config.IntSafe(
+		(*config.Config)(x),
+		"opened_cache_size",
+	)
+
+	if d > 0 {
+		return int(d)
+	}
+
+	return OpenedCacheSizeDefault
+}

cmd/neofs-node/config/engine/shard/blobstor/config.go

@@ -0,0 +1,113 @@
+package blobstorconfig
+
+import (
+	"os"
+
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
+	blobovniczaconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/blobstor/blobovnicza"
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
+)
+
+// Config is a wrapper over the config section
+// which provides access to BlobStor configurations.
+type Config config.Config
+
+// config defaults
+const (
+	// PermDefault are default permission bits for BlobStor data.
+	PermDefault = 0700
+
+	// ShallowDepthDefault is a default shallow dir depth.
+	ShallowDepthDefault = 4
+
+	// SmallSizeLimitDefault is a default limit of small objects payload in bytes.
+	SmallSizeLimitDefault = 1 << 20
+)
+
+// From wraps config section into Config.
+func From(c *config.Config) *Config {
+	return (*Config)(c)
+}
+
+// Path returns value of "path" config parameter.
+//
+// Panics if value is not a non-empty string.
+func (x *Config) Path() string {
+	p := config.String(
+		(*config.Config)(x),
+		"path",
+	)
+
+	if p == "" {
+		panic("blobstor path not set")
+	}
+
+	return p
+}
+
+// Perm returns value of "perm" config parameter as a os.FileMode.
+//
+// Returns PermDefault if value is not a non-zero number.
+func (x *Config) Perm() os.FileMode {
+	p := config.UintSafe(
+		(*config.Config)(x),
+		"perm",
+	)
+
+	if p == 0 {
+		p = PermDefault
+	}
+
+	return os.FileMode(p)
+}
+
+// ShallowDepth returns value of "shallow_depth" config parameter.
+//
+// Returns ShallowDepthDefault if value is out of
+// [1:fstree.MaxDepth] range.
+func (x *Config) ShallowDepth() int {
+	d := config.IntSafe(
+		(*config.Config)(x),
+		"shallow_depth",
+	)
+
+	if d >= 1 && d <= fstree.MaxDepth {
+		return int(d)
+	}
+
+	return ShallowDepthDefault
+}
+
+// Compress returns value of "compress" config parameter.
+//
+// Returns false if value is not a valid bool.
+func (x *Config) Compress() bool {
+	return config.BoolSafe(
+		(*config.Config)(x),
+		"compress",
+	)
+}
+
+// SmallSizeLimit returns value of "small_size_limit" config parameter.
+//
+// Returns SmallSizeLimitDefault if value is not a positive number.
+func (x *Config) SmallSizeLimit() uint64 {
+	l := config.UintSafe(
+		(*config.Config)(x),
+		"small_size_limit",
+	)
+
+	if l > 0 {
+		return l
+	}
+
+	return SmallSizeLimitDefault
+}
+
+// Blobovnicza returns "blobovnicza" subsection as a blobovniczaconfig.Config.
+func (x *Config) Blobovnicza() *blobovniczaconfig.Config {
+	return blobovniczaconfig.From(
+		(*config.Config)(x).
+			Sub("blobovnicza"),
+	)
+}