Add Linux GUI installer via Wine (#3)

* Add Linux GUI installer via Wine

* Fix launcher creation and add BTF_RELAY env var support

* Pool server, Linux GUI, unified binary, README update

* Root Makefile: make linux / make windows, cleaner README

* Remove headless.cpp

* Fix XPM color count mismatch causing toolbar image errors on Linux

* XPM icons: same code on Windows and Linux, no ifdefs around image loading

* Fix GTK icon crash and Linux printf format

* btfrv: 10s socket timeout on relay connects

* Faster peer discovery: more dials per pass, shorter backoff and sleep

* Parallel btf peer connections

* Fix GetMyExternalIP - was disabled, now uses modern IP echo services

* Fix tunnel disconnect on idle and restore external IP detection

* Filter stale Nostr descriptors

* Sort peers by freshness, fresh first

* Pool: add .btf Stratum listener — miners connect via rendezvous, no port forwarding needed

* btf pool: self-replacing listeners, one per relay, no queuing between miners

* Mining modes: solo/operator/participant — pool server on-demand, participant Stratum client

* Status bar: show external IP and .btf address

* README: clean rewrite, concept-first, minimal

* make linux produces AppImage

* make linux produces AppImage

* Pool dashboard: connect instructions, tabs, share bars

* Perf fixes: GetMyExternalIP threaded, btf listener counted

* Perf fixes: GetMyExternalIP threaded, btf listener counted

* Fix pool payouts: defer until coinbase maturity

* Pool: clean mode switching, IP warning

* Pool: clean mode switching

* Fix gPoolRunning: remove static

* AppImage: use real icon from bitcoin.ico

* Fix exit crash; Mining menu

* Fix exit crash; Mining menu

* Fix exit crash; Mining menu

* Fix exit crash; Mining menu

* Fix exit crash; Mining menu

* Windows build: use mingw32-make

* Windows build: simpler make invocation

* Add deps-windows target

* Windows build fixes

* Windows build fixes

* Windows makefile: fix obj dir

* Windows: output to repo root

* Windows: bundle DLLs into zip

* Replace wxWidgets with ImGui+GLFW: same build on Linux and Windows

* Fix %I64d that slipped back through rebase (main.h, net.h)

* MinGW: add _mkdir shim for non-MSVC Windows; fix %I64d

* Fix gPoolRunning extern outside ifndef _WIN32

* Remove -lboost_system: boost is header-only in this codebase

* Status bar: copy buttons for IP and .btf address

* Windows: add app icon via windres, strip wx stuff from rc file

* Clean GUI: single Options menu item, bigger font, better spacing, cleaner options dialog; update README

* GUI: embed Roboto font at 16px for clear readability on all platforms

* Windows: windres depends on obj dir target

* Fix balance hidden off-screen: put on own line below address bar

* Windows: inline mkdir in every rule, remove dir target that confused make

* Windows: move all target to top so it's the default rule

* Fix pool server not starting: always start when operator selected, re-sync dialog state on open

* Write debug.log to data directory (AppData/Roaming/Bitflash on Windows)

* Participant miner: use wallet address as username so payouts go to wallet

* Add .gitattributes to lock LF line endings, prevent CRLF drift

* Refactor pool mining to btf-only transport

* Persist pool settings and startup wiring

* Prune stale peers and expose pool queries

* Fix build regressions and add CLI mode/arg parity

* Fix rpc miner stats declaration order

* Centralize pool runtime extern declarations

* Separate operator/participant dashboards and restore peer stats

* Add live telemetry strip and clearer per-mode runtime metrics

* Reduce mining dashboard clutter and remove manual pool entry

* Count only authorized pool miners

* Seed initial pool job on startup

* Use a real share target for pool work

* Switch pool accounting to round-based shares

* Fix nostr pool announcer stats call sites

* Fix pool stats definition order

* Improve pool worker status display

* Add mutex include for participant status

* Replace ImClamp in dashboard layout

* Clarify participant work status

* Log participant status transitions

* Reduce peer discovery log noise

* Add participant status badge

* Track participant auth acknowledgements

* Log and validate pool job delivery

---------

Co-authored-by: Bitflash Pool Dev <pool@bitflash>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/btfrv.cpp b/src/btfrv.cpp
index ffda08c..812d077 100644
--- a/src/btfrv.cpp
+++ b/src/btfrv.cpp
@@ -98,11 +98,38 @@ static SOCKET ConnectTo(const char* host, unsigned short port)
     if (getaddrinfo(host, portstr, &hints, &res) != 0 || !res) return INVALID_SOCKET;
     SOCKET s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
     if (s == INVALID_SOCKET) { freeaddrinfo(res); return INVALID_SOCKET; }
+
+    // Apply a short timeout only for the connect() and initial handshake so an
+    // unresponsive relay doesn't block the thread. Once the tunnel is live the
+    // timeout is cleared — a forwarding pipe must block indefinitely on recv().
+#ifdef _WIN32
+    DWORD tvShort = 10000;
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tvShort, sizeof(tvShort));
+    setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (const char*)&tvShort, sizeof(tvShort));
+#else
+    struct timeval tvShort; tvShort.tv_sec = 10; tvShort.tv_usec = 0;
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tvShort, sizeof(tvShort));
+    setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, &tvShort, sizeof(tvShort));
+#endif
+
     if (connect(s, res->ai_addr, (int)res->ai_addrlen) != 0)
     {
         CLOSESOCK(s); freeaddrinfo(res); return INVALID_SOCKET;
     }
     freeaddrinfo(res);
+
+    // Clear the timeout — the socket is now a live tunnel and must not
+    // time out when idle. recv() will block until data arrives or peer closes.
+#ifdef _WIN32
+    DWORD tvOff = 0;
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tvOff, sizeof(tvOff));
+    setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (const char*)&tvOff, sizeof(tvOff));
+#else
+    struct timeval tvOff; tvOff.tv_sec = 0; tvOff.tv_usec = 0;
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tvOff, sizeof(tvOff));
+    setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, &tvOff, sizeof(tvOff));
+#endif
+
     return s;
 }