fdcount

README

fdcount   

package fdcount contains provides utility functions for counting file descriptors used by the current process.

Documentation

Index

• func WaitUntilNoneMatch(match string, timeout time.Duration) error
• type Counter
  • func Matching(match string) (int, *Counter, error)
  • func (c *Counter) AssertDelta(expected int) error

Functions

func WaitUntilNoneMatch

func WaitUntilNoneMatch(match string, timeout time.Duration) error

WaitUntilNoneMatch waits until no file descriptors match the given string, or the timeout is hit.

Types

type Counter

type Counter struct {
	// contains filtered or unexported fields
}

Counter memorizes the number of file descriptors and compare them.

func Matching

func Matching(match string) (int, *Counter, error)

Matching returns a count of the file descriptors matching the given string (not a regex). Also returns a Counter that can be used to check the delta of file descriptors after this point.

Currently only works on systems that have the lsof command available.

see https://groups.google.com/forum/#!topic/golang-nuts/c0AnWXjzNIA

func (*Counter) AssertDelta

func (c *Counter) AssertDelta(expected int) error

AssertDelta asserts that the number of file descriptors added/removed since Counter was created equals the given number.