1 files changed, 20 insertions, 0 deletions
diff --git a/write_or_die.c b/write_or_die.c
new file mode 100644
index 0000000..ab4cb8a
--- /dev/null
+++ b/write_or_die.c
@@ -0,0 +1,20 @@
+#include "cache.h"
+
+void write_or_die(int fd, const void *buf, size_t count)
+{
+	const char *p = buf;
+	ssize_t written;
+
+	while (count > 0) {
+		written = xwrite(fd, p, count);
+		if (written == 0)
+			die("disk full?");
+		else if (written < 0) {
+			if (errno == EPIPE)
+				exit(0);
+			die("write error (%s)", strerror(errno));
+		}
+		count -= written;
+		p += written;
+	}
+}