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added lock #23

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merged 2 commits into from
Apr 20, 2018
Merged

added lock #23

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cdda267
added lock
mpgerlek Apr 20, 2018
7ad56c7
debuggin coverage report behaviour
mpgerlek Apr 20, 2018
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added lock
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@mpgerlek
mpgerlek committed Apr 20, 2018
commit cdda2678e492fc9efbdb203e0c28a26feb24a839
6 changes: 6 additions & 0 deletions Convert.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package proj

import (
"fmt"
"sync"

"github.com/go-spatial/proj/core"
"github.com/go-spatial/proj/support"
Expand All @@ -21,6 +22,9 @@ const (
WebMercator = EPSG3857
)

// ensure only one person is updating our cache of converters at a time
var cacheLock = sync.Mutex{}

// Convert performs a conversion from a 4326 coordinate system (lon/lat
// degrees, 2D) to the given projected system (x/y meters, 2D).
//
Expand All @@ -32,7 +36,9 @@ const (
// y1, x2, y2, ...].
func Convert(dest EPSGCode, input []float64) ([]float64, error) {

cacheLock.Lock()
conv, err := newConversion(dest)
cacheLock.Unlock()
if err != nil {
return nil, err
}
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