added website data, because it had heaps of good tutorials and info

1 files changed, 21 insertions, 0 deletions

diff --git a/riemann.fmi.uni-sofia.bg/ngetty/ngetty-1.1/sortpfd.h b/riemann.fmi.uni-sofia.bg/ngetty/ngetty-1.1/sortpfd.h
new file mode 100644
index 0000000..7f3ec73
--- /dev/null
+++ b/riemann.fmi.uni-sofia.bg/ngetty/ngetty-1.1/sortpfd.h
@@ -0,0 +1,21 @@
+static void swap_bytes(void *a, void *b, int len) {
+  char  *x = a, *y = b, z;
+  while (len--) {
+    z = *x; *x = *y; *y = z;
+    ++x; ++y;
+  }
+}
+
+static int sortpfd() {
+  int l=0, r=npfd-1;
+ again:
+  while (l <= r && pfd[l].fd >= 0) ++l;
+  while (l <= r && pfd[r].fd  < 0) --r;
+
+  if (l < r) {
+    swap_bytes(pfd+l, pfd+r, sizeof(pollfd_));
+    swap_bytes(tty+l, tty+r, sizeof(tty_name_));
+    goto again;
+  }
+  return l;
+}