Commit Graph

9 Commits

Author SHA1 Message Date
Siavash Sameni
d7b37a5749 diag: tracing for direct-call signal loop + CallEngine::start stages
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User reports tapping "answer" on an incoming direct call does nothing
visible, and suspects the same may affect desktop. The signal recv loop
had no tracing at all, so we can't tell whether CallSetup is being
received, whether the recv loop died silently, or whether
CallEngine::start is failing between "identity loaded" and
"connected to relay, handshake complete".

- register_signal recv loop now logs every message type with fields
  (CallRinging, DirectCallOffer, DirectCallAnswer, CallSetup, Hangup,
  unhandled), plus a warn! on recv errors and a final warn when the
  loop exits.
- place_call / answer_call commands log entry + success / error. The
  answer_call error path logs the underlying send_signal error so we
  can see it in logcat instead of only in the JS error toast.
- CallEngine::start android branch logs relay/room/alias on entry,
  logs "endpoint created, dialing relay" between create_endpoint and
  connect, "QUIC connection established, performing handshake" between
  connect and perform_handshake, and promotes all three potential
  failures to explicit error! logs so a silent hang / error becomes
  visible in logcat.

No functional changes — pure diagnostics. Stacks on b35a6b7 (the Oboe
stack-pointer-escape fix) so build #43 carries both.
2026-04-09 19:17:03 +04:00
Siavash Sameni
5beea7de40 phase 3(android): unify connect/disconnect/toggle_*/get_status commands
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Step 3 of the Tauri Android rewrite was still returning "audio backend not
yet wired on Android (step 3)" because the cfg-gated Android stubs for
connect/disconnect/toggle_mic/toggle_speaker/get_status were shadowing the
real commands. Now that CallEngine::start() has a real Android body (phase
3, commit fdbe502), the gates are unnecessary.

- Drop the #[cfg(not(target_os = "android"))] gates from all five
  engine-backed Tauri commands.
- Delete the Android stub block (~50 LOC of "not connected" boilerplate).
- Ungate `use engine::CallEngine;` and the AppState.engine field so both
  targets share the same Mutex<Option<CallEngine>>.
- CallEngine::stop() now calls crate::wzp_native::audio_stop() on Android so
  the mic + speaker are released between calls, matching the desktop
  behaviour where dropping _audio_handle tears down CPAL.

Direct-call flow on Android: peer sends DirectCallOffer → user accepts via
answer_call → relay sends signal "setup" event → main.ts auto-invokes
connect(relay, room) → CallEngine::start() runs the Android branch →
wzp_native::audio_start() brings up Oboe → send/recv tasks stream PCM
through the dlopen boundary.
2026-04-09 18:53:54 +04:00
Siavash Sameni
fdbe502524 phase 3(android): wire CallEngine::start to wzp-native audio FFI
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Replaces the Android-side CallEngine::start() stub with a real implementation
that mirrors the desktop start() body but routes all PCM through the
standalone wzp-native cdylib loaded at startup via libloading instead of
using CPAL.

- desktop/src-tauri/src/wzp_native.rs: new module with a static
  OnceLock<libloading::Library> + cached raw fn pointers for every symbol
  we need (version, hello, audio_start/stop, read_capture, write_playout,
  is_running, capture/playout_latency_ms). init() resolves everything once
  at startup; accessors return default values if init() never ran.

- desktop/src-tauri/src/lib.rs: drop the inline dlopen smoke test, add
  `mod wzp_native;` behind target_os="android", and invoke
  wzp_native::init() from the Tauri setup() callback so the library is
  loaded + all symbols cached before any CallEngine can touch audio.

- desktop/src-tauri/src/engine.rs: the Android #[cfg] branch of
  CallEngine::start() now does the full QUIC handshake + signal loop +
  Opus send/recv tasks, calling wzp_native::audio_start() /
  audio_read_capture() / audio_write_playout() instead of the desktop
  CPAL rings. SyncWrapper now holds a placeholder Box<()> on Android
  because the audio backend lives in a process-global singleton inside
  libwzp_native.so rather than being owned per-engine.

Next step: build #39 on the remote docker builder and smoke-test on
Pixel 6 that the Connect button in the UI successfully brings up Oboe
and streams audio through the dlopen boundary.
2026-04-09 18:42:27 +04:00
Siavash Sameni
7cc53aedc7 refactor(android): split C++ into wzp-native cdylib, loaded at runtime
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Phase 1 of the big refactor. Escape the Tauri Android
__init_tcb+4 symbol leak (rust-lang/rust#104707) by making
wzp-desktop's Android .so pure Rust — ZERO cc::Build, no cpp/ files,
no C++ in the rustc link step. All future C++ (Oboe audio bridge)
lives in a new standalone cdylib crate `wzp-native` which is built
with cargo-ndk (the same path the legacy wzp-android crate uses
successfully on the same phone + same NDK), copied into Tauri's
gen/android/app/src/main/jniLibs at build time, and dlopened by
wzp-desktop at runtime via libloading.

Changes in this commit:
- NEW crate crates/wzp-native/ with crate-type = ["cdylib"] only
  (no staticlib, no rlib — rust#104707 shows mixing staticlib with
  cdylib leaks non-exported symbols, which is the original bug
  source). Phase 1 scaffold has TWO extern "C" functions:
    wzp_native_version() -> i32            (returns 42)
    wzp_native_hello(buf, cap) -> usize    (writes a string)
  So we can verify dlopen + dlsym + cross-.so FFI end-to-end
  before adding any real C++.
- desktop/src-tauri/cpp/ directory DELETED (7 files gone).
- desktop/src-tauri/build.rs reduced to just the git hash capture
  + tauri_build::build(). No more cc::Build of any kind.
- desktop/src-tauri/Cargo.toml: drop cc from build-dependencies,
  add libloading = "0.8" as an Android-only runtime dep.
- desktop/src-tauri/src/lib.rs Builder::setup() now (on Android only)
  dlopens libwzp_native.so, calls wzp_native_version() and
  wzp_native_hello(), and logs the result:
    "wzp-native dlopen OK: version=42 msg=\"hello from wzp-native\""
  If this log appears in logcat when the app launches and the home
  screen still renders, the split-cdylib pipeline is validated and
  Phase 2 (port the Oboe bridge into wzp-native) can proceed.
- scripts/build-tauri-android.sh: insert a `cargo ndk -t arm64-v8a
  build --release -p wzp-native` step before `cargo tauri android
  build`, with `-o desktop/src-tauri/gen/android/app/src/main/jniLibs`
  so the resulting libwzp_native.so lands in the place gradle will
  package into the final APK.
- Workspace Cargo.toml: add crates/wzp-native to [workspace] members.

Phase 2 (separate commit, only if Phase 1 works):
- Copy cpp/oboe_bridge.{h,cpp} + getauxval_fix.c from the legacy
  wzp-android crate into crates/wzp-native/cpp/.
- Add cc = "1" as a build-dependency on wzp-native (safe: it's a
  single-cdylib crate with no staticlib, so no symbol leak).
- Add build.rs that compiles the Oboe C++ and the wzp-native Rust
  FFI exposes the audio start/stop/read/write functions.
- wzp-desktop::engine.rs dlopens wzp-native at CallEngine::start,
  uses its audio functions instead of CPAL on Android.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 18:02:53 +04:00
Siavash Sameni
c69195fe06 step C(android): compile engine.rs on Android with a stub CallEngine::start
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Third incremental variable. Previously the engine module was cfg-gated
out of the Android build entirely (`#[cfg(not(target_os = "android"))]
mod engine;` in lib.rs). Now it's always compiled, so any link-time
effect of having engine.rs in the compilation unit can be measured
against the working baseline from build #19.

Changes kept deliberately small:
- lib.rs: drop the cfg gate on `mod engine;`. `use engine::CallEngine`
  stays gated because the Android-specific connect/disconnect/... stubs
  in lib.rs don't reference the type.
- engine.rs: the `wzp_client::{audio_io, call}` imports + CodecId +
  QualityProfile are gated to non-Android (they require the `audio`
  feature on wzp-client which Android doesn't pull in). On Android we
  keep only the MediaTransport import for transport.close(). The impl
  block now has two `start()` methods: the full CPAL-backed one for
  desktop, and a 6-line Android stub that returns `Err("audio engine
  not yet wired on Android")` so attempts to `connect` from the UI
  fail cleanly.

Goal: verify that linking in the compiled engine module (plus the
types it references) on Android doesn't regress the working baseline.
Home screen should still render and register_signal should still work.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 14:56:02 +04:00
Siavash Sameni
530993854f revert(android): roll back to build #6 (35642d1) — pre-oboe known-good state
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Spent 10+ builds chasing a __init_tcb+4 / pthread_create SIGSEGV after
adding the oboe audio backend. Every "fix" made things worse. Reverting
all Android-specific files to the state at 35642d1 (build #6), which
was the last commit where the Tauri Android app actually launched,
rendered the home screen, and successfully registered on a relay.

Reverted files (all back to their 35642d1 content):
  - desktop/src-tauri/Cargo.toml        (no build-dep cc, no tracing-android)
  - desktop/src-tauri/build.rs          (git hash only, no Oboe / cc build)
  - desktop/src-tauri/src/lib.rs        (engine cfg-gated on non-android)
  - desktop/src-tauri/src/main.rs       (two-line desktop entry)
  - desktop/src-tauri/src/engine.rs     (desktop-only audio setup)
  - scripts/Dockerfile.android-builder  (no android24→26 clang shim)
  - scripts/build-tauri-android.sh      (no linker env vars / manifest patch)

Deleted (were added between b314138 and e2e023d):
  - desktop/src-tauri/cpp/getauxval_fix.c
  - desktop/src-tauri/cpp/oboe_bridge.{h,cpp}
  - desktop/src-tauri/cpp/oboe_stub.cpp
  - desktop/src-tauri/src/oboe_audio.rs

Next: rebuild image on remote (to drop the baked-in clang shim), build
an APK, install on Pixel 6, verify the UI renders the same way build #6
did. From there we add features back ONE at a time so we can actually
bisect which one triggers the tao::ndk_glue crash. User's rule:
"if you want to change stack, change incrementally, so we can debug".

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 14:22:57 +04:00
Siavash Sameni
b314138caf feat(android): oboe/AAudio audio backend + runtime mic permission (step 3)
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This is the big one — the Tauri Android app now has a real audio stack
capable of full-duplex VoIP, reusing the proven C++ Oboe bridge from the
legacy wzp-android crate.

Architecture:
- desktop/src-tauri/cpp/  — copies of oboe_bridge.{h,cpp}, oboe_stub.cpp,
  and getauxval_fix.c from crates/wzp-android/cpp/. build.rs clones
  google/oboe@1.8.1 into OUT_DIR and compiles the bridge + all Oboe
  sources as "oboe_bridge" static lib, linking against shared libc++
  (static would pull broken libc stubs that SIGSEGV in .so libraries).
- src/oboe_audio.rs  — Rust side: an SPSC ring buffer matching the C++
  bridge's AtomicI32 layout, plus OboeHandle::start() which returns
  (capture_ring, playout_ring, owning_handle). The ring exposes the same
  (available / read / write) methods as wzp_client::audio_ring::AudioRing
  so CallEngine treats both backends interchangeably.
- src/engine.rs  — compiled on every platform now. A cfg-switched type
  alias picks wzp_client::audio_ring::AudioRing on desktop and
  crate::oboe_audio::AudioRing on Android. The audio setup block has
  three branches: VPIO/CPAL on macOS, CPAL on Linux/Windows, Oboe on
  Android. Send/recv tasks are identical across platforms.
- src/lib.rs  — removes all the "step 3 not done" Android stubs. The
  engine module is no longer cfg-gated; connect / disconnect / toggle_mic
  / toggle_speaker / get_status are single implementations used by both
  desktop and Android. Identity path resolves via app.path().app_data_dir()
  from the Tauri setup() callback (already wired in step 1).

Runtime mic permission:
- scripts/build-tauri-android.sh now injects RECORD_AUDIO + MODIFY_AUDIO_
  SETTINGS into gen/android/app/src/main/AndroidManifest.xml after init,
  and overwrites MainActivity.kt with a version that calls
  ActivityCompat.requestPermissions in onCreate. This is idempotent:
  every build re-applies the patches so tauri re-init can't regress them.

Cargo.toml:
- cc is now an unconditional build-dep (build.rs runs on the host, so
  target-gating build-deps doesn't work).
- wzp-client is now a dep on every platform. On Android it gets default
  features only (no "audio"/"vpio") so CPAL isn't dragged in — oboe_audio
  provides the capture/playout rings instead.
- tracing-android is added on Android so tracing events flow into logcat.

build.rs also gained embedded git hash (WZP_GIT_HASH) capture, which is
shown under the fingerprint on the home screen — already committed in
7639aaf, reinstated here alongside the Oboe build logic.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 12:40:38 +04:00
Siavash Sameni
7639aaf08d feat(desktop): deterministic alias from seed + git hash on home screen + fix EACCES on Android
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Three home-screen issues from the first Tauri Android APK:

1. Alias was empty (no seed-derived name).
   Port the adjective+noun word lists from the old Kotlin SettingsRepository
   into a `derive_alias()` helper that maps the first 4 bytes of the seed to
   indices in those lists. Same seed → same alias forever, different seeds →
   effectively random aliases — so reinstalls keep the user's identity AND
   the friendly name they're used to.

2. Build identity was invisible — couldn't tell which APK was actually
   installed (this caused us a lot of grief on the Kotlin app).
   build.rs now captures `git rev-parse --short HEAD` and emits it as
   `WZP_GIT_HASH`, exposed via a new `get_app_info` command. The frontend
   stamps `build <hash> • <alias>` under the fingerprint on the home screen.

3. Register on relay failed with `Permission denied (os error 13)`.
   Root cause: I hardcoded `/data/data/com.wzp.phone/files/.wzp` as the
   identity dir, but the Tauri Android package id is `com.wzp.desktop` —
   so the app was trying to write into another app's data directory and
   getting EACCES at the filesystem layer. Fix: resolve the data dir from
   Tauri's `path().app_data_dir()` API in the `setup()` callback and stash
   it in a `OnceLock<PathBuf>`. Works on Android, macOS, Linux, Windows
   without any cfg gymnastics.

Also: `get_app_info` returns the resolved `data_dir` so we can debug
storage issues from the UI (it's set as the build-hash element's title).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 11:55:51 +04:00
Siavash Sameni
e6f77a78a7 feat(desktop): split main.rs into lib.rs for Tauri Mobile (Android/iOS)
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Tauri 2.x Mobile links the app as a cdylib loaded from a Java Activity, so
all of the Builder/command code has to live in a library crate. Move the
existing logic verbatim into src/lib.rs::run() and reduce src/main.rs to a
two-line desktop entry point that calls into it.

Cargo.toml gets a [lib] section (crate-types: staticlib + cdylib + rlib,
named wzp_desktop_lib) and the wzp-client dependency — which pulls CPAL +
VoiceProcessingIO — is moved behind cfg(not(target_os = "android")) so the
Android cdylib doesn't need an audio backend yet. Engine-backed Tauri
commands (connect/disconnect/toggle_mic/toggle_speaker/get_status) get
Android stubs that return clear "not yet wired" errors. The signaling
commands (register_signal/place_call/answer_call/get_signal_status/
ping_relay/get_identity) are platform-independent and unchanged.

Also: get_identity / register_signal now auto-create the seed if missing
instead of erroring with "connect to a room first", and the identity dir
resolves to /data/data/com.wzp.phone/files/.wzp on Android (proper
app-internal storage) vs \$HOME/.wzp on desktop.

Side note: src/main.rs was previously untracked — desktop builds were
working only because it existed in the local worktree. This commit fixes
that too.

Step 1 of the Android rewrite plan (tauri-mobile scaffold). No audio yet.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 11:17:55 +04:00