From cf9ee07b8e31d3fa2e89a59357effe5002baaec8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Mon, 9 Mar 2026 00:41:30 +0100
Subject: [PATCH] Adhoc: Forgot that we have to load the server list in-game to
 check the connection mode

---
 Core/HLE/sceNetAdhoc.cpp | 26 ++++++++++++++++++++++----
 Core/HLE/sceNetAdhoc.h   |  4 ++--
 UI/PauseScreen.cpp       |  1 +
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/Core/HLE/sceNetAdhoc.cpp b/Core/HLE/sceNetAdhoc.cpp
index dc2fe0e7f7..04c8d648e2 100644
--- a/Core/HLE/sceNetAdhoc.cpp
+++ b/Core/HLE/sceNetAdhoc.cpp
@@ -95,6 +95,7 @@ std::chrono::time_point<std::chrono::steady_clock> relayLastFailure;
 bool trackingRelayFailure = false;
 bool relayDisabled = false;
 bool relayFirstConnect = true;
+bool g_serverListLoaded = false;
 
 int gameModeNotifyEvent = -1;
 
@@ -174,9 +175,10 @@ static void LoadFallbackServerList() {
 		return;
 	}
 	ParseServerListEntriesJSON(std::string_view((char*)jsonStr.get(), jsonSize));
+	g_serverListLoaded = true;
 }
 
-void AdhocLoadServerList() {
+void AdhocLoadServerList(bool sync) {
 	{
 		std::lock_guard<std::mutex> guard(g_proAdhocServerListMutex);
 		if (!g_proAdhocServerList.empty()) {
@@ -189,7 +191,7 @@ void AdhocLoadServerList() {
 
 	if (startsWith(g_Config.sAdhocServerListUrl, "http")) {
 		// Download the list.
-		g_DownloadManager.StartDownload(g_Config.sAdhocServerListUrl, Path(), http::RequestFlags::Cached24H, nullptr, "adhoc-servers", [url = g_Config.sAdhocServerListUrl](http::Request &request) {
+		auto dl = g_DownloadManager.StartDownload(g_Config.sAdhocServerListUrl, Path(), http::RequestFlags::Cached24H, nullptr, "adhoc-servers", [url = g_Config.sAdhocServerListUrl](http::Request &request) {
 			if (request.Failed()) {
 				ERROR_LOG(Log::sceNet, "Failed to download adhoc server list from %s, falling back.", url.c_str());
 				LoadFallbackServerList();
@@ -202,8 +204,18 @@ void AdhocLoadServerList() {
 			request.buffer().TakeAll(&json);
 			if (!ParseServerListEntriesJSON(std::string_view(json.data(), json.size()))) {
 				LoadFallbackServerList();
+				return;
 			}
 		});
+
+		if (sync) {
+			// Unfortunate.
+			do {
+				sleep_ms(10, "waiting-for-adhoc-server-list");
+				g_DownloadManager.Update();
+			} while (!dl->Done());
+		}
+		g_serverListLoaded = true;
 	} else if (!g_Config.sAdhocServerListUrl.empty()) {
 		// Try to read local file.
 		std::string json;
@@ -221,13 +233,19 @@ void AdhocLoadServerList() {
 	}
 }
 
-std::vector<AdhocServerListEntry> AdhocGetServerList() {
+std::vector<AdhocServerListEntry> AdhocGetServerList(bool sync) {
+	if (!g_serverListLoaded) {
+		// In-game - unfortunately we have to do a synchronous load here.
+		// If cached it will be fast though.
+		AdhocLoadServerList(sync);
+	}
+
 	std::lock_guard<std::mutex> guard(g_proAdhocServerListMutex);
 	return g_proAdhocServerList;
 }
 
 static AdhocDataMode AdhocGetServerDataMode(std::string_view server) {
-	std::vector<AdhocServerListEntry> list = AdhocGetServerList();
+	std::vector<AdhocServerListEntry> list = AdhocGetServerList(true);
 	for (const auto &item : list) {
 		if (equals(server, item.host)) {
 			INFO_LOG(Log::sceNet, "server %.*s is in known list, using data mode %s", STR_VIEW(server), AdhocDataModeToString(item.mode));
diff --git a/Core/HLE/sceNetAdhoc.h b/Core/HLE/sceNetAdhoc.h
index 17b093bdbd..29a5178b59 100644
--- a/Core/HLE/sceNetAdhoc.h
+++ b/Core/HLE/sceNetAdhoc.h
@@ -114,8 +114,8 @@ struct AdhocServerListEntry {
 	AdhocDataMode mode = AdhocDataMode::P2P;
 };
 
-void AdhocLoadServerList();
-std::vector<AdhocServerListEntry> AdhocGetServerList();
+void AdhocLoadServerList(bool sync = false);
+std::vector<AdhocServerListEntry> AdhocGetServerList(bool sync = false);
 
 class PointerWrap;
 
diff --git a/UI/PauseScreen.cpp b/UI/PauseScreen.cpp
index be63b1d2de..1d737e0135 100644
--- a/UI/PauseScreen.cpp
+++ b/UI/PauseScreen.cpp
@@ -546,6 +546,7 @@ void GamePauseScreen::CreateViews() {
 		if (NetAdhocctl_GetState() >= ADHOCCTL_STATE_CONNECTED) {
 			// Awkwardly re-using a string here
 			saveDataScrollItems->Add(new TextView(ApplySafeSubstitutions("%1: %2 (%3)", nw->T("AdHoc server"), nw->T("Connected"), g_Config.sProAdhocServer)));
+			// TODO: Add more metadata about the connected ad-hoc server here.
 		}
 	}