From 75c3d2eca4d2c3dab48c35940d507af941cc12bf Mon Sep 17 00:00:00 2001
From: SciresM <Sciresm@gmail.com>
Date: Tue, 31 Mar 2020 12:41:05 -0700
Subject: [PATCH] nim: add ListSystemUpdateTask/DestroySystemUpdateTask (#390)

---
 nx/include/switch.h              |  1 +
 nx/include/switch/services/nim.h | 26 +++++++++++++++++++++++
 nx/source/services/nim.c         | 36 ++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+)
 create mode 100644 nx/include/switch/services/nim.h
 create mode 100644 nx/source/services/nim.c

diff --git a/nx/include/switch.h b/nx/include/switch.h
index 1a43469c..03043d60 100644
--- a/nx/include/switch.h
+++ b/nx/include/switch.h
@@ -82,6 +82,7 @@ extern "C" {
 #include "switch/services/vi.h"
 #include "switch/services/nv.h"
 #include "switch/services/nifm.h"
+#include "switch/services/nim.h"
 #include "switch/services/ns.h"
 #include "switch/services/ldr.h"
 #include "switch/services/ro.h"
diff --git a/nx/include/switch/services/nim.h b/nx/include/switch/services/nim.h
new file mode 100644
index 00000000..615486a6
--- /dev/null
+++ b/nx/include/switch/services/nim.h
@@ -0,0 +1,26 @@
+/**
+ * @file nim.h
+ * @brief Network Install Manager (nim) service IPC wrapper.
+ * @author SciresM
+ * @copyright libnx Authors
+ */
+#pragma once
+#include "../types.h"
+#include "../sf/service.h"
+
+/// SystemUpdateTaskId
+typedef struct {
+    alignas(8) Uuid uuid;  ///< UUID
+} NimSystemUpdateTaskId;
+
+/// Initialize nim.
+Result nimInitialize(void);
+
+/// Exit nim.
+void nimExit(void);
+
+/// Gets the Service object for the actual nim service session.
+Service* nimGetServiceSession(void);
+
+Result nimListSystemUpdateTask(s32 *out_count, NimSystemUpdateTaskId *out_task_ids, size_t max_task_ids);
+Result nimDestroySystemUpdateTask(const NimSystemUpdateTaskId *task_id);
diff --git a/nx/source/services/nim.c b/nx/source/services/nim.c
new file mode 100644
index 00000000..46d4937e
--- /dev/null
+++ b/nx/source/services/nim.c
@@ -0,0 +1,36 @@
+#include <string.h>
+#include "service_guard.h"
+#include "services/nim.h"
+
+#include "runtime/hosversion.h"
+
+static Service g_nimSrv;
+
+NX_GENERATE_SERVICE_GUARD(nim);
+
+Result _nimInitialize(void) {
+    return smGetService(&g_nimSrv, "nim");
+}
+
+void _nimCleanup(void) {
+    serviceClose(&g_nimSrv);
+}
+
+Service* nimGetServiceSession(void) {
+    return &g_nimSrv;
+}
+
+Result nimDestroySystemUpdateTask(const NimSystemUpdateTaskId *task_id) {
+    return serviceDispatchIn(&g_nimSrv, 1, *task_id);
+}
+
+Result nimListSystemUpdateTask(s32 *out_count, NimSystemUpdateTaskId *out_task_ids, size_t max_task_ids) {
+    return serviceDispatchOut(&g_nimSrv, 2, *out_count,
+        .buffer_attrs = {
+            SfBufferAttr_HipcMapAlias | SfBufferAttr_Out,
+        },
+        .buffers = {
+            { out_task_ids,  max_task_ids * sizeof(*out_task_ids) },
+        },
+    );
+}