From a031b83a09a8628435317a03f199cdc18b78262f Mon Sep 17 00:00:00 2001 From: Matthew Heon Date: Wed, 1 Nov 2017 11:24:59 -0400 Subject: Initial checkin from CRI-O repo Signed-off-by: Matthew Heon --- vendor/github.com/Microsoft/hcsshim/layerexists.go | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 vendor/github.com/Microsoft/hcsshim/layerexists.go (limited to 'vendor/github.com/Microsoft/hcsshim/layerexists.go') diff --git a/vendor/github.com/Microsoft/hcsshim/layerexists.go b/vendor/github.com/Microsoft/hcsshim/layerexists.go new file mode 100644 index 000000000..fe46f404c --- /dev/null +++ b/vendor/github.com/Microsoft/hcsshim/layerexists.go @@ -0,0 +1,30 @@ +package hcsshim + +import "github.com/sirupsen/logrus" + +// LayerExists will return true if a layer with the given id exists and is known +// to the system. +func LayerExists(info DriverInfo, id string) (bool, error) { + title := "hcsshim::LayerExists " + logrus.Debugf(title+"Flavour %d ID %s", info.Flavour, id) + + // Convert info to API calling convention + infop, err := convertDriverInfo(info) + if err != nil { + logrus.Error(err) + return false, err + } + + // Call the procedure itself. + var exists uint32 + + err = layerExists(&infop, id, &exists) + if err != nil { + err = makeErrorf(err, title, "id=%s flavour=%d", id, info.Flavour) + logrus.Error(err) + return false, err + } + + logrus.Debugf(title+"succeeded flavour=%d id=%s exists=%d", info.Flavour, id, exists) + return exists != 0, nil +} -- cgit v1.2.3-54-g00ecf