1 files changed, 33 insertions, 0 deletions
diff --git a/libbio/bflush.c b/libbio/bflush.c
new file mode 100644
index 0000000..42bbe9f
--- /dev/null
+++ b/libbio/bflush.c
@@ -0,0 +1,33 @@
+#include	"plan9.h"
+#include	<bio.h>
+
+int
+Bflush(Biobuf *bp)
+{
+	int n, c;
+
+	switch(bp->state) {
+	case Bwactive:
+		n = bp->bsize+bp->ocount;
+		if(n == 0)
+			return 0;
+		c = write(bp->fid, bp->bbuf, n);
+		if(n == c) {
+			bp->offset += n;
+			bp->ocount = -bp->bsize;
+			return 0;
+		}
+		bp->state = Binactive;
+		bp->ocount = 0;
+		break;
+
+	case Bracteof:
+		bp->state = Bractive;
+
+	case Bractive:
+		bp->icount = 0;
+		bp->gbuf = bp->ebuf;
+		return 0;
+	}
+	return Beof;
+}