capnp: calculate singleSegmentArena next allocation based on cap (#124)

Added Tiit Pikma to A+C. Fixes #123
capnproto · Oct 4, 2018 · 659aba4 · 659aba4
1 parent 7cfd211
commit 659aba4
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diff --git a/AUTHORS b/AUTHORS
@@ -22,6 +22,7 @@ Johan Hernandez <[email protected]>
 Joonsung Lee <[email protected]>
 Lev Radomislensky <[email protected]>
 Peter Waldschmidt <[email protected]>
+Tiit Pikma <[email protected]>
 Tom Thorogood <[email protected]>
 TJ Holowaychuk <[email protected]>
 William Laffin <[email protected]>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
@@ -28,6 +28,7 @@ Joonsung Lee <[email protected]>
 Lev Radomislensky <[email protected]>
 Peter Waldschmidt <[email protected]>
 Ross Light <[email protected]> <[email protected]>
+Tiit Pikma <[email protected]>
 Tom Thorogood <[email protected]>
 TJ Holowaychuk <[email protected]>
 William Laffin <[email protected]>
diff --git a/mem.go b/mem.go
@@ -360,7 +360,7 @@ func (ssa *singleSegmentArena) Allocate(sz Size, segs map[SegmentID]*Segment) (S
 	if hasCapacity(data, sz) {
 		return 0, data, nil
 	}
-	inc, err := nextAlloc(int64(len(data)), int64(maxSegmentSize()), sz)
+	inc, err := nextAlloc(int64(cap(data)), int64(maxSegmentSize()), sz)
 	if err != nil {
 		return 0, nil, fmt.Errorf("capnp: alloc %d bytes: %v", sz, err)
 	}