G1: JUCE engine SHM chain rong POC - probe pass, khong lag them

native_bridge/src/RealtimeFxLoop.cpp

@@ -10,6 +10,7 @@
 //   nhận JSON mảng {path,bypass,preset_b64} (type/name bỏ qua).
 #include "RenderFxJob.h"
 #include "FxRealtimeIPC.h"
+#include "FxShm.h"
 
 #ifdef _WIN32
 #ifndef NOMINMAX
@@ -31,32 +32,6 @@
 
 namespace {
 
-struct ShmView {
-    void* map = nullptr;
-    void* view = nullptr;
-};
-
-ShmView* openShm(const std::string& name, size_t size) {
-    int wlen = MultiByteToWideChar(CP_UTF8, 0, name.c_str(), -1, nullptr, 0);
-    std::wstring wname(wlen, L'\0');
-    MultiByteToWideChar(CP_UTF8, 0, name.c_str(), -1, &wname[0], wlen);
-    HANDLE map = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, wname.c_str());
-    if (!map) return nullptr;
-    void* view = MapViewOfFile(map, FILE_MAP_ALL_ACCESS, 0, 0, size);
-    if (!view) { CloseHandle(map); return nullptr; }
-    ShmView* v = new ShmView();
-    v->map = map;
-    v->view = view;
-    return v;
-}
-
-void closeShm(ShmView* v) {
-    if (!v) return;
-    if (v->view) UnmapViewOfFile(v->view);
-    if (v->map) CloseHandle((HANDLE)v->map);
-    delete v;
-}
-
 static bool parentAlive(uint32_t pid) {
     if (pid == 0) return true;
     HANDLE h = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, pid);
@@ -137,7 +112,7 @@ int run_realtime_fx_loop(const std::string& jobPath, const std::string& shmName,
     RealtimeFxChain chain;
     chain.setChain(chainJson, sampleRate, (int32_t)batchN);
 
-    ShmView* v = openShm(shmName, sizeof(FxRealtimeIPC));
+    fxshm::ShmView* v = fxshm::openShm(shmName, sizeof(FxRealtimeIPC));
     if (!v) {
         std::cerr << "[RealtimeFxLoop] cannot open SHM: " << shmName
                   << " (engine phải tạo trước)" << std::endl;
@@ -149,12 +124,12 @@ int run_realtime_fx_loop(const std::string& jobPath, const std::string& shmName,
     for (int i = 0; i < 200 && ipc->h.magic != FXRT_MAGIC; ++i) sleepMs(10);
     if (ipc->h.magic != FXRT_MAGIC) {
         std::cerr << "[RealtimeFxLoop] SHM magic mismatch (engine chưa init?)" << std::endl;
-        closeShm(v);
+        fxshm::closeShm(v);
         return 2;
     }
     if (ipc->h.inSlots != FXRT_IN_SLOTS || ipc->h.outSlots != FXRT_OUT_SLOTS) {
         std::cerr << "[RealtimeFxLoop] slot count mismatch" << std::endl;
-        closeShm(v);
+        fxshm::closeShm(v);
         return 2;
     }
     // Windows timer resolution 1ms — bỏ granularity Sleep 15.6ms cho toàn
@@ -359,7 +334,7 @@ int run_realtime_fx_loop(const std::string& jobPath, const std::string& shmName,
     }
     ipc->h.state = FXRT_STATE_STARTING;  // đã dừng
     hb.join();
-    closeShm(v);
+    fxshm::closeShm(v);
 #ifdef _WIN32
     timeEndPeriod(1);
 #endif