1 files changed, 17 insertions, 0 deletions
diff --git a/src/libstddjb/buffer_fill.c b/src/libstddjb/buffer_fill.c
new file mode 100644
index 0000000..c158abe
--- /dev/null
+++ b/src/libstddjb/buffer_fill.c
@@ -0,0 +1,17 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/buffer.h>
+#include <skalibs/cbuffer.h>
+
+int buffer_fill (buffer *b)
+{
+  siovec_t v[2] ;
+  register int r ;
+  if (buffer_isfull(b)) return (errno = ENOBUFS, -1) ;
+  buffer_wpeek(b, v) ;
+  r = (*b->op)(b->fd, v, 2, b->aux) ;
+  if (r <= 0) return r ;
+  cbuffer_WSEEK(&b->c, r) ;
+  return r ;
+}