k3s/vendor/github.com/Microsoft/hcsshim/internal/timeout/timeout.go

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2019-01-12 04:58:27 +00:00
package timeout
import (
"os"
"strconv"
"time"
)
var (
// defaultTimeout is the timeout for most operations that is not overridden.
defaultTimeout = 4 * time.Minute
// defaultTimeoutTestdRetry is the retry loop timeout for testd to respond
// for a disk to come online in LCOW.
defaultTimeoutTestdRetry = 5 * time.Second
)
// External variables for HCSShim consumers to use.
var (
// SystemCreate is the timeout for creating a compute system
SystemCreate time.Duration = defaultTimeout
// SystemStart is the timeout for starting a compute system
SystemStart time.Duration = defaultTimeout
// SystemPause is the timeout for pausing a compute system
SystemPause time.Duration = defaultTimeout
// SystemResume is the timeout for resuming a compute system
SystemResume time.Duration = defaultTimeout
// SyscallWatcher is the timeout before warning of a potential stuck platform syscall.
SyscallWatcher time.Duration = defaultTimeout
// Tar2VHD is the timeout for the tar2vhd operation to complete
Tar2VHD time.Duration = defaultTimeout
// ExternalCommandToStart is the timeout for external commands to start
ExternalCommandToStart = defaultTimeout
// ExternalCommandToComplete is the timeout for external commands to complete.
// Generally this means copying data from their stdio pipes.
ExternalCommandToComplete = defaultTimeout
// TestDRetryLoop is the timeout for testd retry loop when onlining a SCSI disk in LCOW
TestDRetryLoop = defaultTimeoutTestdRetry
)
func init() {
SystemCreate = durationFromEnvironment("HCSSHIM_TIMEOUT_SYSTEMCREATE", SystemCreate)
SystemStart = durationFromEnvironment("HCSSHIM_TIMEOUT_SYSTEMSTART", SystemStart)
SystemPause = durationFromEnvironment("HCSSHIM_TIMEOUT_SYSTEMPAUSE", SystemPause)
SystemResume = durationFromEnvironment("HCSSHIM_TIMEOUT_SYSTEMRESUME", SystemResume)
SyscallWatcher = durationFromEnvironment("HCSSHIM_TIMEOUT_SYSCALLWATCHER", SyscallWatcher)
Tar2VHD = durationFromEnvironment("HCSSHIM_TIMEOUT_TAR2VHD", Tar2VHD)
ExternalCommandToStart = durationFromEnvironment("HCSSHIM_TIMEOUT_EXTERNALCOMMANDSTART", ExternalCommandToStart)
ExternalCommandToComplete = durationFromEnvironment("HCSSHIM_TIMEOUT_EXTERNALCOMMANDCOMPLETE", ExternalCommandToComplete)
TestDRetryLoop = durationFromEnvironment("HCSSHIM_TIMEOUT_TESTDRETRYLOOP", TestDRetryLoop)
}
func durationFromEnvironment(env string, defaultValue time.Duration) time.Duration {
envTimeout := os.Getenv(env)
if len(envTimeout) > 0 {
e, err := strconv.Atoi(envTimeout)
if err == nil && e > 0 {
return time.Second * time.Duration(e)
}
}
return defaultValue
}