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https://github.com/aljazceru/kata-containers.git
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8ead054e25
To include the grpc yamux dialer. Included kata agent git log: e37feac protocol: client: enable builtin yamux client support a862fea agent: Fix container creation rollback 9602e11 vendor: Update libcontainer vendoring 92f87a1 agent: Rollback properly when container creation fails 128f87d mount: Correct error message with mount failure. 7a182a4 device: VmPath can be empty if an Id is provided 0275654 ci: lib: allow override of tests_repo 205a4d7 github: Add issue template 103aacd announce: Add total memory e277ec6 announce: Add device and storage handlers 5d7463f announce: Add standard fields when running as PID 1 4655950 agent: Add announce function 5e6c385 CI: Require pullapprove ack for protocol changes 5d40027 tests: Skip more tests if non-root 4ba8499 tests: Use root skip function 9a2da30 tests: Move helper function ae2be84 device: Add validation and debug 9e7b27c mount: Log params and validate Signed-off-by: Peng Tao <bergwolf@gmail.com>
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
package yamux
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import (
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"fmt"
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"io"
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"os"
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"time"
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)
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// Config is used to tune the Yamux session
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type Config struct {
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// AcceptBacklog is used to limit how many streams may be
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// waiting an accept.
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AcceptBacklog int
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// EnableKeepalive is used to do a period keep alive
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// messages using a ping.
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EnableKeepAlive bool
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// KeepAliveInterval is how often to perform the keep alive
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KeepAliveInterval time.Duration
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// ConnectionWriteTimeout is meant to be a "safety valve" timeout after
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// we which will suspect a problem with the underlying connection and
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// close it. This is only applied to writes, where's there's generally
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// an expectation that things will move along quickly.
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ConnectionWriteTimeout time.Duration
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// MaxStreamWindowSize is used to control the maximum
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// window size that we allow for a stream.
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MaxStreamWindowSize uint32
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// LogOutput is used to control the log destination
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LogOutput io.Writer
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}
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// DefaultConfig is used to return a default configuration
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func DefaultConfig() *Config {
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return &Config{
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AcceptBacklog: 256,
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EnableKeepAlive: true,
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KeepAliveInterval: 30 * time.Second,
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ConnectionWriteTimeout: 10 * time.Second,
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MaxStreamWindowSize: initialStreamWindow,
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LogOutput: os.Stderr,
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}
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}
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// VerifyConfig is used to verify the sanity of configuration
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func VerifyConfig(config *Config) error {
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if config.AcceptBacklog <= 0 {
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return fmt.Errorf("backlog must be positive")
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}
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if config.KeepAliveInterval == 0 {
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return fmt.Errorf("keep-alive interval must be positive")
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}
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if config.MaxStreamWindowSize < initialStreamWindow {
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return fmt.Errorf("MaxStreamWindowSize must be larger than %d", initialStreamWindow)
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}
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return nil
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}
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// Server is used to initialize a new server-side connection.
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// There must be at most one server-side connection. If a nil config is
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// provided, the DefaultConfiguration will be used.
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func Server(conn io.ReadWriteCloser, config *Config) (*Session, error) {
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if config == nil {
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config = DefaultConfig()
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}
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if err := VerifyConfig(config); err != nil {
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return nil, err
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}
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return newSession(config, conn, false), nil
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}
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// Client is used to initialize a new client-side connection.
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// There must be at most one client-side connection.
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func Client(conn io.ReadWriteCloser, config *Config) (*Session, error) {
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if config == nil {
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config = DefaultConfig()
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}
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if err := VerifyConfig(config); err != nil {
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return nil, err
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}
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return newSession(config, conn, true), nil
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}
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