frostfs-api-go/status/status.go
Pavel Karpy bb9fc5bfab [#405] status: Support signature status
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2022-06-30 18:52:22 +03:00

98 lines
2.5 KiB
Go

package status
const sectionBitSize = 10
// InSections checks if the Code is in [i,j] section list.
func (x Code) InSections(i, j uint32) bool {
return uint32(x) >= i<<sectionBitSize && uint32(x) < (j+1)<<sectionBitSize
}
// LocalizeSection localizes the Code to the sec-th section.
//
// Does not make sense if the Code is outside the section.
func (x *Code) LocalizeSection(sec uint32) {
*x = *x - Code(sec<<sectionBitSize)
}
// GlobalizeSection globalizes the Code of the sec-th section.
//
// Does not make sense if the Code is outside the section.
func (x *Code) GlobalizeSection(sec uint32) {
*x = *x + Code(sec<<sectionBitSize)
}
// IsInSection returns true if the Code belongs to sec-th section.
func IsInSection(code Code, sec uint32) bool {
return code.InSections(sec, sec)
}
const successSections = 1
// IsSuccess checks if the Code is a success code.
func IsSuccess(c Code) bool {
return c.InSections(0, successSections-1)
}
// LocalizeSuccess localizes the Code to the success section.
func LocalizeSuccess(c *Code) {
c.LocalizeSection(0)
}
// GlobalizeSuccess globalizes the Code to the success section.
func GlobalizeSuccess(c *Code) {
c.GlobalizeSection(0)
}
func sectionAfterSuccess(sec uint32) uint32 {
return successSections + sec
}
// Success codes.
const (
// OK is a local status Code value for default success.
OK Code = iota
)
// Common failure codes.
const (
// Internal is a local Code value for INTERNAL failure status.
Internal Code = iota
// WrongMagicNumber is a local Code value for WRONG_MAGIC_NUMBER failure status.
WrongMagicNumber
// SignatureVerificationFail is a local Code value for SIGNATURE_VERIFICATION_FAIL status.
SignatureVerificationFail
)
const (
_ = iota - 1
sectionCommon
)
// IsCommonFail checks if the Code is a common failure code.
func IsCommonFail(c Code) bool {
return IsInSection(c, sectionAfterSuccess(sectionCommon))
}
// LocalizeCommonFail localizes the Code to the common fail section.
func LocalizeCommonFail(c *Code) {
c.LocalizeSection(sectionAfterSuccess(sectionCommon))
}
// GlobalizeCommonFail globalizes the Code to the common fail section.
func GlobalizeCommonFail(c *Code) {
c.GlobalizeSection(sectionAfterSuccess(sectionCommon))
}
// LocalizeIfInSection checks if passed global status.Code belongs to the section and:
// then localizes the code and returns true,
// else leaves the code unchanged and returns false.
//
// Arg must not be nil.
func LocalizeIfInSection(c *Code, sec uint32) bool {
if IsInSection(*c, sec) {
c.LocalizeSection(sec)
return true
}
return false
}