8c6ba35038
This pulls in and uses github.com/docker/docker/pkg/chrootarchive for the actual copy up which is some battle hardened code to unpack avoiding things like symlink traversal security issues. However it does pull in a pretty huge pile of vendoring, including github.com/docker/docker/pkg/reexec which we must then call at startup. It's not immediately clear that this tradeoff is the correct one. Signed-off-by: Ian Campbell <ijc@docker.com>
23 lines
441 B
Go
23 lines
441 B
Go
// +build linux freebsd
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package fileutils
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/sirupsen/logrus"
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)
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// GetTotalUsedFds Returns the number of used File Descriptors by
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// reading it via /proc filesystem.
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func GetTotalUsedFds() int {
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if fds, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/fd", os.Getpid())); err != nil {
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logrus.Errorf("Error opening /proc/%d/fd: %s", os.Getpid(), err)
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} else {
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return len(fds)
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}
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return -1
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}
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