From d5630d1b60a675b42f71fde92e697d9c73aa5940 Mon Sep 17 00:00:00 2001
From: s441433 <kryklo@st.wmi.amu.edu.pl>
Date: Fri, 28 Dec 2018 22:13:20 +0100
Subject: [PATCH] Create sqlite3_usleep_windows.go

---
 .../go-sqlite3/sqlite3_usleep_windows.go      | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/github.com/mattn/go-sqlite3/sqlite3_usleep_windows.go

diff --git a/src/github.com/mattn/go-sqlite3/sqlite3_usleep_windows.go b/src/github.com/mattn/go-sqlite3/sqlite3_usleep_windows.go
new file mode 100644
index 0000000..1971a48
--- /dev/null
+++ b/src/github.com/mattn/go-sqlite3/sqlite3_usleep_windows.go
@@ -0,0 +1,39 @@
+// Copyright (C) 2018 G.J.R. Timmer <gjr.timmer@gmail.com>.
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+// +build cgo
+
+package sqlite3
+
+// usleep is a function available on *nix based systems.
+// This function is not present in Windows.
+// Windows has a sleep function but this works with seconds
+// and not with microseconds as usleep.
+//
+// This code should improve performance on windows because
+// without the presence of usleep SQLite waits 1 second.
+//
+// Source: https://stackoverflow.com/questions/5801813/c-usleep-is-obsolete-workarounds-for-windows-mingw?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa
+
+/*
+#include <windows.h>
+
+void usleep(__int64 usec)
+{
+    HANDLE timer;
+    LARGE_INTEGER ft;
+
+    // Convert to 100 nanosecond interval, negative value indicates relative time
+    ft.QuadPart = -(10*usec);
+
+    timer = CreateWaitableTimer(NULL, TRUE, NULL);
+    SetWaitableTimer(timer, &ft, 0, NULL, NULL, 0);
+    WaitForSingleObject(timer, INFINITE);
+    CloseHandle(timer);
+}
+*/
+import "C"
+
+// EOF