1 files changed, 42 insertions, 0 deletions
diff --git a/Semestr 4/sieci/pracownia3/window.c b/Semestr 4/sieci/pracownia3/window.c
new file mode 100644
index 0000000..c8bffad
--- /dev/null
+++ b/Semestr 4/sieci/pracownia3/window.c
@@ -0,0 +1,42 @@
+/* Projekt: Transport
+ * Autor: Franciszek Malinka 316093
+ */
+
+#include "window.h"
+#include <stdlib.h>
+#include <strings.h>
+
+void init_window(window_t *w, int window_size, int window_width) {
+  w->ar = malloc(window_size * sizeof(char *));
+  for (int i = 0; i < window_size; i++) 
+    w->ar[i] = malloc(window_width * sizeof(char));
+  w->uptodate = malloc(window_size);
+  bzero (w->uptodate, window_size);
+  w->first_pos = 0;
+  w->size = window_size;
+}
+
+void destroy_window(window_t *w) {
+  for (int i = 0; i < w->size; i++) 
+    free(w->ar[i]);
+  free(w->ar);
+  free(w->uptodate);
+}
+
+void shift_while_uptodate(window_t *w) {
+  while (w->uptodate[w->first_pos]) {
+    w->uptodate[w->first_pos] = false;
+    w->first_pos = (w->first_pos + 1) % w->size;
+  }
+}
+
+void shift(window_t *w) {
+  w->uptodate[w->first_pos] = false;
+  w->first_pos = (w->first_pos + 1) % w->size;
+}
+
+void update(window_t *w, int pos, char *buffer, size_t buf_size) {
+  pos = (w->first_pos + pos) % w->size;
+  for (int i = 0; i < buf_size; i++) w->ar[pos][i] = buffer[i];
+  w->uptodate[pos] = true;
+}
+\ No newline at end of file