troposphere: add haze MTP server (#2095)

* troposphere: add haze MTP server * haze: adjust banner, new lines between class sections, single-statement if * haze: remove additional newlines between sections * haze: avoid use of reference out parameter * haze: console_main_loop: style * haze: event_reactor, file_system_proxy, ptp: style * haze: ptp_data_builder, ptp_object_database, ptp_object_heap, results, usb_session: style * haze: event_reactor, ptp_data_parser, async_usb_server, ptp_object_database, ptp_object_heap: style * haze: ptp_responder: style * haze: usb_session: style * haze: use svc defs from vapours * haze: misc comments * haze: fix pointer overflow check * haze: fix copy paste error * haze: use alignment, invalidate cached use values in console * haze: fix stray hex constant * haze: misc style * haze: fixes for windows * haze: add GetObjectPropsSupported, GetObjectPropDesc, GetObjectPropValue * haze: add SetObjectPropValue * haze: improve object database API * haze: improve WriteVariableLengthData readability * haze: fix directory renames on windows * haze: ptp_object_database: fix collation * haze: event_reactor: fix size validation * haze: ptp_responder: improve documentation * haze: ptp_responder: avoid unnecessary fs interaction in GetObjectPropValue * haze: ptp_responder: fix object deletion on windows * haze: tear down sessions on suspension * haze: prefer more specific data types * haze: misc * haze: fix usb 3.0 support * haze: improve host-to-device file transfer performance * haze: report device serial * haze: move static_assert to requires, fix alignment
2023-04-17 17:08:05 -04:00
parent e9b28ab4b1
commit 3b662122f9
26 changed files with 3674 additions and 1 deletions
--- a/troposphere/haze/source/event_reactor.cpp
+++ b/troposphere/haze/source/event_reactor.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <haze.hpp>
+
+namespace haze {
+
+    bool EventReactor::AddConsumer(EventConsumer *consumer, Waiter waiter) {
+        HAZE_ASSERT(m_num_wait_objects + 1 <= svc::ArgumentHandleCountMax);
+
+        /* Add to the end of the list. */
+        m_consumers[m_num_wait_objects] = consumer;
+        m_waiters[m_num_wait_objects]   = waiter;
+        m_num_wait_objects++;
+
+        return true;
+    }
+
+    void EventReactor::RemoveConsumer(EventConsumer *consumer) {
+        s32 output_index = 0;
+
+        /* Remove the consumer. */
+        for (s32 input_index = 0; input_index < m_num_wait_objects; input_index++) {
+            if (m_consumers[input_index] == consumer) {
+                continue;
+            }
+
+            if (output_index != input_index) {
+                m_consumers[output_index] = m_consumers[input_index];
+                m_waiters[output_index]   = m_waiters[input_index];
+            }
+
+            output_index++;
+        }
+
+        m_num_wait_objects = output_index;
+    }
+
+    Result EventReactor::WaitForImpl(s32 *out_arg_waiter, const Waiter *arg_waiters, s32 num_arg_waiters) {
+        HAZE_ASSERT(0 < num_arg_waiters && num_arg_waiters <= svc::ArgumentHandleCountMax);
+        HAZE_ASSERT(m_num_wait_objects + num_arg_waiters <= svc::ArgumentHandleCountMax);
+
+        while (true) {
+            /* Check if we should wait for an event. */
+            R_TRY(m_result);
+
+            /* Insert waiters from argument list. */
+            for (s32 i = 0; i < num_arg_waiters; i++) {
+                m_waiters[i + m_num_wait_objects] = arg_waiters[i];
+            }
+
+            s32 idx;
+            HAZE_R_ABORT_UNLESS(waitObjects(std::addressof(idx), m_waiters, m_num_wait_objects + num_arg_waiters, svc::WaitInfinite));
+
+            /* If a waiter in the argument list was signaled, return it. */
+            if (idx >= m_num_wait_objects) {
+                *out_arg_waiter = idx - m_num_wait_objects;
+                R_SUCCEED();
+            }
+
+            /* Otherwise, process the event as normal. */
+            m_consumers[idx]->ProcessEvent();
+        }
+    }
+
+}