Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172)

* Add SQLite support, fix un-thread-safe DB caches, small performance fixes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add SQLite licenses to README

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* appease the linter, and fix my dumbass-ery

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* make requested changes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add back comment

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/vendor/modernc.org/ccgo/v3/lib/cover.go b/vendor/modernc.org/ccgo/v3/lib/cover.go
new file mode 100644
index 000000000..fdc39f3fa
--- /dev/null
+++ b/vendor/modernc.org/ccgo/v3/lib/cover.go
@@ -0,0 +1,39 @@
+// Copyright 2020 The CCGO Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package ccgo // import "modernc.org/ccgo/v3/lib"
+
+import (
+	"fmt"
+	"runtime"
+	"sort"
+	"strings"
+)
+
+var (
+	coverMap = map[uintptr]struct{}{}
+)
+
+func pc2origin(pc uintptr) string {
+	f := runtime.FuncForPC(pc)
+	var fn, fns string
+	var fl int
+	if f != nil {
+		fn, fl = f.FileLine(pc)
+		fns = f.Name()
+		if x := strings.LastIndex(fns, "."); x > 0 {
+			fns = fns[x+1:]
+		}
+	}
+	return fmt.Sprintf("%s:%d:%s", fn, fl, fns)
+}
+
+func coverReport() string {
+	var a []string
+	for pc := range coverMap {
+		a = append(a, pc2origin(pc))
+	}
+	sort.Strings(a)
+	return strings.Join(a, "\n")
+}