From 45f7b91ea126f8f9e607a8ee53df655d992590f2 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Tue, 25 Feb 2020 22:51:54 -0800
Subject: [PATCH] libaltos: Create altos_pause_one_second API

This is to wait for the reading thread to stop using the file object
while cleaning up.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 libaltos/libaltos_common.c  | 8 ++------
 libaltos/libaltos_posix.c   | 8 ++++++++
 libaltos/libaltos_private.h | 3 +++
 libaltos/libaltos_windows.c | 6 ++++++
 4 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/libaltos/libaltos_common.c b/libaltos/libaltos_common.c
index 6f0cbe61..fb8c314e 100644
--- a/libaltos/libaltos_common.c
+++ b/libaltos/libaltos_common.c
@@ -117,16 +117,12 @@ int altos_bt_port(struct altos_bt_device *device) {
 	return BT_PORT_DEFAULT;
 }
 
-#include <time.h>
-
 PUBLIC void
 altos_free(struct altos_file *file)
 {
 	int i;
 	altos_close(file);
-	for (i = 0; i < 10 && file->busy; i++) {
-		struct timespec delay = { .tv_sec = 1, .tv_nsec = 0 };
-		nanosleep(&delay, NULL);
-	}
+	for (i = 0; i < 10 && file->busy; i++)
+		altos_pause_one_second();
 	free(file);
 }
diff --git a/libaltos/libaltos_posix.c b/libaltos/libaltos_posix.c
index bf5d4699..97eedd3b 100644
--- a/libaltos/libaltos_posix.c
+++ b/libaltos/libaltos_posix.c
@@ -200,3 +200,11 @@ altos_fill(struct altos_file *file_common, int timeout)
 	return 0;
 }
 
+#include <time.h>
+
+void
+altos_pause_one_second(void)
+{
+	struct timespec delay = { .tv_sec = 1, .tv_nsec = 0 };
+	nanosleep(&delay, NULL);
+}
diff --git a/libaltos/libaltos_private.h b/libaltos/libaltos_private.h
index 45e141f9..f356eb6b 100644
--- a/libaltos/libaltos_private.h
+++ b/libaltos/libaltos_private.h
@@ -65,4 +65,7 @@ altos_fill(struct altos_file *file, int timeout);
 int
 altos_bt_port(struct altos_bt_device *device);
 
+void
+altos_pause_one_second(void);
+
 #endif /* _LIBALTOS_PRIVATE_H_ */
diff --git a/libaltos/libaltos_windows.c b/libaltos/libaltos_windows.c
index 846e2217..03c2958f 100644
--- a/libaltos/libaltos_windows.c
+++ b/libaltos/libaltos_windows.c
@@ -760,3 +760,9 @@ altos_bt_open(struct altos_bt_device *device)
 	}
 	return &file->file;
 }
+
+void
+altos_pause_one_second(void)
+{
+	Sleep(1000);
+}
-- 
2.30.2