src/dedo.go: Remove Options.InitialMmapSize option

2 files changed, 2 insertions, 12 deletions

diff --git a/src/dedo.go b/src/dedo.go
index 437680b..b81b55b 100644
--- a/src/dedo.go
+++ b/src/dedo.go
@@ -176,15 +176,6 @@ type panicked struct {
 
 // Options represents the options that can be set when opening a database.
 type Options struct {
-	// InitialMmapSize is the initial mmap size of the database
-	// in bytes. Read transactions won't block write transaction
-	// if the InitialMmapSize is large enough to hold database mmap
-	// size. (See DB.Begin for more information)
-	//
-	// If <=0, the initial map size is 0.
-	// If initialMmapSize is smaller than the previous database size,
-	// it takes no effect.
-	InitialMmapSize int
 }
 
 // Stats represents statistics about the database.
@@ -1882,7 +1873,7 @@ func Open(path string, mode os.FileMode, options *Options) (*DB, error) {
 	}
 
 	// Memory map the data file.
-	if err := db.mmap(options.InitialMmapSize); err != nil {
+	if err := db.mmap(0); err != nil {
 		_ = db.close()
 		return nil, err
 	}
diff --git a/tests/dedo.go b/tests/dedo.go
index c614cb9..bb1d001 100644
--- a/tests/dedo.go
+++ b/tests/dedo.go
@@ -3182,10 +3182,9 @@ func TestDB_Open_InitialMmapSize(t *testing.T) {
 	path := tempfile()
 	defer os.Remove(path)
 
-	initMmapSize := 1 << 31  // 2GB
 	testWriteSize := 1 << 27 // 134MB
 
-	db, err := Open(path, 0666, &Options{InitialMmapSize: initMmapSize})
+	db, err := Open(path, 0666, &Options{})
 	if err != nil {
 		t.Fatal(err)
 	}