From 43abef7f981dd6f0aca00dc24f07fc8ea002f729 Mon Sep 17 00:00:00 2001
From: Bobbi Webber-Manners <bmanners@krakenrobotics.com>
Date: Sat, 22 Feb 2020 22:45:22 -0500
Subject: [PATCH] Added code to flush unwritten changes to disk

---
 bobbi/sortdir.c#b00008 | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/bobbi/sortdir.c#b00008 b/bobbi/sortdir.c#b00008
index f8df812..62340c1 100644
--- a/bobbi/sortdir.c#b00008
+++ b/bobbi/sortdir.c#b00008
@@ -155,6 +155,7 @@ static char caseopts[2] = "";    /* -c:x case conversion option */
 /* Prototypes */
 void prerr(char *s);
 void hline(void);
+void flushall(void);
 int  readdiskblock(uchar device, uint blocknum, char *buf);
 int  writediskblock(uchar device, uint blocknum, char *buf);
 void fixcase(char *in, char *out, uchar minvers, uchar vers, uchar len);
@@ -210,6 +211,17 @@ void hline(void) {
 		putchar('-');
 }
 
+/*
+ * Disable GSOS block cache and flush any unwritten changes
+ */
+void flushall(void) {
+	ResetCacheGS(0); /* Disable block caching */
+	short ff[2];
+	ff[0] = 1;
+	ff[1] = 0;
+	FlushGS(ff);
+}
+
 /*
  * Read block from disk using ProDOS call
  * buf must point to buffer with at least 512 bytes
@@ -249,7 +261,7 @@ int writediskblock(uchar device, uint blocknum, char *buf) {
 		puts("Not writing library directory");
 		return 0;
 	}
-	ResetCacheGS(0); /* Disable block caching */
+	flushall();
 	DIORecGS dr;
 	dr.pCount = 6;
 	dr.devNum = device;
@@ -1360,6 +1372,7 @@ void usage(void) {
  * blocknum is the keyblock of the directory to process
  */
 void processdir(uint device, uint blocknum) {
+	flushall();
 	uchar err = readdir(device, blocknum);
 	if (doverbose) {
 		printlist();