Execute command.

Returns the 'Bearer' credential as a header for calling the V1 agent API if the `authToken` is presented, or empty otherwise. TODO(chhsiao): Currently

The return type matches the `clone` function parameter in `process::subprocess`.

Returns a Try of the IP for the provided hostname or an error if no IP is obtained.

Extract the strings associated with the provided `DynamicTag` from all DYNAMIC sections in the ELF binary.

Constructs a Timeout instance from a Time that is the 'duration' from now.

'isSome', 'isNone', and 'isError' are mutually exclusive. They correspond to the underlying unioned state of the Option and Try.

The error indicates the last socket function on a non-blocking socket cannot be completed. This is a temporary condition and the caller can retry the

Parse the master info in the configuration file and return its IP address and the port where Mesos is running.

Helper for determining the time when the next timer elapses, or None if no timers are pending, or the clock is paused and no timers are expired. Note

Parse a string previously printed as a `Table` back into a `Table`.

* This method returns a list of pending futures represented as objects of * `FutureMetadata` class, whose variables are initialized by the argument

Windows uses a combination of the return code and the Win32 error code to determine that status of the overlapped IO functions (success, failure, pend

Asynchronous read on a overlapped int_fd. Returns `Error` on fatal errors, `None()` on a successful pending IO operation or number of bytes read on a

Returns the amount of time remaining.

Make an HTTP request and deserialize the response as JSON. Optionally decode the deserialized json dict into a decoded object.