Rename dirs

lib/console.c

@@ -0,0 +1,47 @@
+#include <zinnia/console.h>
+#include <zinnia/init.h>
+#include <zinnia/print.h>
+#include <zinnia/spin.h>
+
+static struct console* registered = nullptr;
+static struct spinlock console_lock;
+
+void console_write(const char* buf, size_t len) {
+    spin_lock(&console_lock);
+    for (struct console* con = registered; con; con = con->next)
+        con->write(con, buf, len);
+    spin_unlock(&console_lock);
+}
+
+static void console_replay_write(void* ctx, const char* buf, size_t len) {
+    struct console* con = ctx;
+    con->write(con, buf, len);
+}
+
+bool console_register(struct console* con) {
+    if (!con->init(con))
+        return false;
+
+    con->write(con, "\ec", 2);
+    log_replay(console_replay_write, con);
+    spin_lock(&console_lock);
+    con->next = registered;
+    registered = con;
+    spin_unlock(&console_lock);
+
+    log("console: Registered console \"%s\"\n", con->name);
+    return true;
+}
+
+void console_unregister(struct console* con) {
+    spin_lock(&console_lock);
+    for (struct console** link = &registered; *link; link = &(*link)->next) {
+        if (*link == con) {
+            *link = con->next;
+            break;
+        }
+    }
+    spin_unlock(&console_lock);
+}
+
+INIT_TASK(console_stage, "core.console");