isolate POSIX builds from the host UCRT, wire lwext4 and ntfs-3g as ext4.sys and ntfs.sys, split the FAT driver into directory/file/async/driver/mount units, add posixsrv and dwm plus input/console/desktop syscall clients and a pile of new smoke targets, rename serial.sys to cereal.sys, name HDA/USB/lwIP/AHCI workers, harden ATA probing/reset/removal around actual hardware deadlines, absent-channel detection, diagnostics and explicit worker lifetime, redo ACPI S5 shutdown around GAS/MMIO and HW-reduced firmware, scan SSDTs for _S5 and deal with Intel SMI sleep trapping, make serial and SMP timeouts use real monotonic deadlines, add thread names and fix terminal thread teardown, scheduler and APC prepare/commit races, make advisory file locks queryable and preserve split ranges and add mutable file append state, add shared-memory pipes with kernel-assisted wait/wake, introduce capability-scoped input and display managers, split surface map rights into read/write, add explicit unmap and replace present with commit/generation/damage tracking while keeping physical presentation under the display manager, decouple native exception classes from Win32 exception numbers and translate them in kernel32, add opaque process startup data, bump the resource protocol to v3 with namespace directories, symlinks and enumeration and service control to v2 with generic READY handle exports, add the new POSIX errno/status surface and rebuild fds around posixsrv-owned shared open descriptions, descriptor-local flags, exact inheritance snapshots, dup/fcntl/record locks and shared-ring pipes, add waitpid, POSIX credentials/groups/sessions/passwd/group lookups and move sockets onto stable open descriptions, port the shells and apps to the new console/input services and surface commit API, teach init to load services.ini and start/supervise RSSRV, DWM and generic services under restricted capabilities while publishing their endpoints through RSSRV, split RSSRV into namespace, volume, display, session, input, console and resource components and make /SystemRoot a real symlink to the independently published system volume, shift the syscall table again, expand lock/resource/surface/POSIX/service/thread smoke coverage, make docs scream ASK QUESTIONS and DISCUSS at LLMs, replace MIT No Attribution with WTFPL+.
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@@ -0,0 +1,173 @@
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// Native surface multithreaded present test.
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// Multiple user threads commit and legacy-present one shared surface to catch synchronization regressions.
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#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include <ntlite/syscall.h>
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#define SURFACE_W 96u
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#define SURFACE_H 64u
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#define THREAD_COUNT 4u
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#define ITERATIONS 32u
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typedef struct WORKER_STATE {
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uint32_t Index;
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uint32_t Surface;
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uint8_t* Base;
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uint32_t Pitch;
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uint32_t Status;
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uint32_t IterationsDone;
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} WORKER_STATE;
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static WORKER_STATE gWorkers[THREAD_COUNT];
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static void print(const char* s) {
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SYS_WRITE_CONSOLE_REQUEST req = { sizeof(SYS_WRITE_CONSOLE_REQUEST), SysSvFromCstr(s) };
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SysWriteConsole(&req);
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}
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static void print_u64(uint64_t v) {
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char buf[32];
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int i = 0;
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if (v == 0) { print("0"); return; }
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while (v && i < (int)sizeof(buf)) {
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buf[i++] = (char)('0' + (v % 10));
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v /= 10;
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}
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while (i--) {
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char c = buf[i];
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SYS_WRITE_CONSOLE_REQUEST req = { sizeof(SYS_WRITE_CONSOLE_REQUEST), SysSvFromParts(&c, 1) };
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SysWriteConsole(&req);
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}
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}
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static void exit_now(int code) {
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while (true) SysExitProcess(code);
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}
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static void fail(const char* msg) {
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print("surface_multithread_commit: ");
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print(msg);
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print("\n");
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exit_now(1);
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}
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static void fail_status(const char* what, uint32_t status) {
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print("surface_multithread_commit: ");
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print(what);
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print(" failed status=");
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print_u64(status);
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print("\n");
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exit_now(1);
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}
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static void worker_main(uintptr_t arg) {
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WORKER_STATE* st = (WORKER_STATE*)arg;
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if (!st) SysExitThread(1);
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uint32_t bandHeight = SURFACE_H / THREAD_COUNT;
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uint32_t y0 = st->Index * bandHeight;
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uint32_t h = bandHeight;
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if (st->Index == THREAD_COUNT - 1)
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h = SURFACE_H - y0;
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for (uint32_t iter = 0; iter < ITERATIONS; ++iter) {
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for (uint32_t y = 0; y < h; ++y) {
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uint32_t* row = (uint32_t*)(st->Base + (size_t)(y0 + y) * st->Pitch);
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for (uint32_t x = 0; x < SURFACE_W; ++x)
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row[x] = 0x00010101u * ((st->Index + 1u) * 32u + (iter & 31u));
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}
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DISPLAY_RECT rect = { 0, (int32_t)y0, (int32_t)SURFACE_W, (int32_t)h };
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uint32_t s = SysCommitSurface(st->Surface, &rect, 1, 0);
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if (s != NTLSTATUS_SUCCESS) {
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st->Status = s;
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SysExitThread(1);
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}
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st->IterationsDone++;
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SysYield();
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}
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st->Status = NTLSTATUS_SUCCESS;
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SysExitThread(0);
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}
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int main(void) {
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print("surface_multithread_commit: start\n");
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uint32_t surface = 0;
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SYS_CREATE_SURFACE_REQUEST req;
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memset(&req, 0, sizeof(req));
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req.Size = sizeof(req);
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req.Width = SURFACE_W;
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req.Height = SURFACE_H;
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req.Format = SYS_SURFACE_FORMAT_XRGB8888;
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req.Flags = SYS_SURFACE_FLAG_NONE;
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req.HandleOut = &surface;
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uint32_t s = SysCreateSurface(&req);
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if (s != NTLSTATUS_SUCCESS) fail_status("create surface", s);
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void* base = 0;
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uint32_t pitch = 0;
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s = SysMapSurface(surface, SYS_SURFACE_MAP_READ | SYS_SURFACE_MAP_WRITE, &base, &pitch);
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if (s != NTLSTATUS_SUCCESS) fail_status("map surface", s);
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if (!base || pitch < SURFACE_W * sizeof(uint32_t)) fail("invalid mapping");
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uint32_t handles[THREAD_COUNT];
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uint32_t tids[THREAD_COUNT];
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memset(handles, 0, sizeof(handles));
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memset(tids, 0, sizeof(tids));
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memset(gWorkers, 0, sizeof(gWorkers));
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for (uint32_t i = 0; i < THREAD_COUNT; ++i) {
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gWorkers[i].Index = i;
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gWorkers[i].Surface = surface;
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gWorkers[i].Base = (uint8_t*)base;
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gWorkers[i].Pitch = pitch;
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gWorkers[i].Status = NTLSTATUS_PENDING;
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SYS_CREATE_THREAD_REQUEST req = {
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sizeof(SYS_CREATE_THREAD_REQUEST), (uintptr_t)worker_main,
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(uintptr_t)&gWorkers[i],
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1,
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0,
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&handles[i],
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&tids[i]
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};
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s = SysCreateThread(&req);
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if (s != NTLSTATUS_SUCCESS) fail_status("create thread", s);
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}
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for (uint32_t i = 0; i < THREAD_COUNT; ++i) {
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s = SysWait(handles[i], SYS_WAIT_FLAG_NONE);
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if (s != NTLSTATUS_SUCCESS) fail_status("wait thread", s);
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SysCloseHandle(handles[i]);
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}
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for (uint32_t i = 0; i < THREAD_COUNT; ++i) {
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if (gWorkers[i].Status != NTLSTATUS_SUCCESS) {
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print("surface_multithread_commit: worker ");
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print_u64(i);
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print(" status=");
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print_u64(gWorkers[i].Status);
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print(" iterations=");
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print_u64(gWorkers[i].IterationsDone);
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print("\n");
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exit_now(1);
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}
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if (gWorkers[i].IterationsDone != ITERATIONS) fail("worker iteration count mismatch");
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}
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SYS_SURFACE_DESC desc;
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memset(&desc, 0, sizeof(desc));
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s = SysQuerySurface(surface, &desc);
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if (s != NTLSTATUS_SUCCESS) fail_status("query surface", s);
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if (desc.CommitCount != (uint64_t)THREAD_COUNT * ITERATIONS)
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fail("commit count mismatch");
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s = SysUnmapSurface(base);
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if (s != NTLSTATUS_SUCCESS) fail_status("unmap surface", s);
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SysCloseHandle(surface);
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print("surface_multithread_commit: PASS\n");
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exit_now(0);
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return 0;
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}
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