Design & implement asynchronous completion queue based alarms

[ctiller]

#1948 exposed a weakness in our Async API when doing timing based work - it gets incredibly difficult to express.

Consider something like:

namespace grpc {
class Alarm {
 public:
  // emits a completion to cq with tag 'tag' on completion
  void Start(CompletionQueue* cq, void* tag, some_time_type deadline);
  void Cancel();
};
}

This would need a C surface API implementation, and could be implemented in terms of the existing iomgr alarm list code.

[ctiller]

This is an additive API can can wait until post beta.

[vjpai]

Agreed that it can wait until post beta.

On Fri, Jul 17, 2015 at 3:25 PM Craig Tiller notifications@github.com
wrote:

Reopened #1949 #1949.

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#1949 (comment).

[ctiller]

Reassigning so dgq gets to close it.

[dgquintas]

Done in #3618