Squash commits for public release

kernel/include/io/tty/pty_master.h

@@ -0,0 +1,23 @@
+#ifndef _KERNEL_IO_TTY_PTY_MASTER_H
+#define _KERNEL_IO_TTY_PTY_MASTER_H
+
+#include <algo/sync_ringbuffer.h>
+#include <fs/vfs.h>
+
+#ifndef PTYS_COUNT
+#define PTYS_COUNT 16
+#endif
+
+struct pty_slave_entry;
+struct pty_master_entry {
+    sync_ringbuffer_t buffer;
+    struct pty_slave_entry* pts;
+    dentry_t dentry;
+};
+typedef struct pty_master_entry pty_master_entry_t;
+
+extern pty_master_entry_t pty_masters[PTYS_COUNT];
+
+int pty_master_alloc(file_descriptor_t* fd);
+
+#endif