Jie Yu created MESOS-1446:
-----------------------------
Summary: Create an abstraction for launching an operation in a
subprocess.
Key: MESOS-1446
URL: https://issues.apache.org/jira/browse/MESOS-1446
Project: Mesos
Issue Type: Improvement
Reporter: Jie Yu
Assignee: Jie Yu
Currently, we create a separate binary for each such operation. For example,
mesos-fetcher, mesos-executor, mesos-usage, etc.
This becomes more and more tedious as we need more and more such operation in
slave and containerizer. Instead of creating a new binary each time we want to
introduce an operation, what about having the following interface.
The user can define customized "execute" function and customized flags. We can
have a single binary taking care of all operations (or have a few binaries each
of which takes care of a subset of operations).
{noformat}
// Represents an operation to be executed by a subprocess.
template <typename F>
class Operation
{
public:
virtual ~Operation() {}
// Returns the name of this operation.
virtual std::string name() const = 0;
// Defines the operation that will be executed by a subprocess.
virtual Try<Nothing> execute(const F& flags) = 0;
// Launches this operation in a subprocess.
process::Future<Option<int> > launch(
const F& flags,
const std::string& executable,
const Option<int>& stdout = None(),
const Option<int>& stderr = None());
};
{noformat}
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