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view Implab/Diagnostics/Extensions.cs @ 209:a867536c68fc v2

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Bound promise to CancellationToken Added new states to ExecutionSate enum. Added Safe.Guard() method to handle cleanup of the result of the promise
author cin
date Wed, 16 Nov 2016 03:06:08 +0300
parents f973c5df9972
children
line wrap: on
line source

namespace Implab.Diagnostics {
    public static class Extensions {
        public static IPromise<T> EndLogicalOperation<T>(this IPromise<T> promise) {
            Safe.ArgumentNotNull(promise, "promise");
            var op = TraceContext.Instance.DetachLogicalOperation();

            return promise.On(
                x => {
                    TraceContext.Instance.EnterLogicalOperation(op,true);
                    TraceLog.TraceInformation("promise = {0}", x);
                    TraceLog.EndLogicalOperation();
                    TraceContext.Instance.Leave();
                },
                err =>{
                    TraceContext.Instance.EnterLogicalOperation(op,true);
                    TraceLog.TraceError("promise died {0}", err);
                    TraceLog.EndLogicalOperation();
                    TraceContext.Instance.Leave();
                },
                reason => {
                    TraceContext.Instance.EnterLogicalOperation(op,true);
                    TraceLog.TraceInformation("promise cancelled {0}", reason == null ? "<no-reason>" : reason.Message);
                    TraceLog.EndLogicalOperation();
                    TraceContext.Instance.Leave();
                }
            );
        }

        public static IPromise EndLogicalOperation(this IPromise promise) {
            Safe.ArgumentNotNull(promise, "promise");
            var op = TraceContext.Instance.DetachLogicalOperation();

            return promise.On(() => {
                TraceContext.Instance.EnterLogicalOperation(op,true);
                TraceLog.EndLogicalOperation();
                TraceContext.Instance.Leave();
            }, PromiseEventType.All);
        }
    }
}