Mercurial > gemma
view pkg/common/warn.go @ 5520:05db984d3db1
Improve performance of bottleneck area calculation
Avoid buffer calculations by replacing them with simple distance comparisons
and calculate the boundary of the result geometry only once per iteration.
In some edge cases with very large numbers of iterations, this reduced
the runtime of a bottleneck import by a factor of more than twenty.
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 21 Oct 2021 19:50:39 +0200 |
parents | 5a650cde0574 |
children | 6270951dda28 |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2019 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package common // WarningLimiter limits outputs with Log to a maximal number // of MaxWarnings outputs. type WarningLimiter struct { Log func(format string, args ...interface{}) MaxWarnings int Warnings int } // Warn is a wrapper around the Log function with the // same signature as the Log function so it can be used // instead. func (w *WarningLimiter) Warn(format string, args ...interface{}) { if w.Warnings++; w.Warnings <= w.MaxWarnings { w.Log(format, args...) } } // Close can be called to write a final message if the limit // was reached. func (w *WarningLimiter) Close() { if w.Warnings > w.MaxWarnings { w.Log("Too many warnings. %d ignored.", w.Warnings-w.MaxWarnings) } }