gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstcudaipcclient_win32.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstcudaipcclient_win32.h"
#include <string>
#include <mutex>
#include <condition_variable>
#include <chrono>
GST_DEBUG_CATEGORY_EXTERN (cuda_ipc_client_debug);
#define GST_CAT_DEFAULT cuda_ipc_client_debug
/* *INDENT-OFF* */
struct GstCudaIpcClientConnWin32 : public GstCudaIpcClientConn
{
GstCudaIpcClientConnWin32 (HANDLE pipe) : pipe (pipe)
{
OVERLAPPED *parent = static_cast<OVERLAPPED *> (this);
parent->Internal = 0;
parent->InternalHigh = 0;
parent->Offset = 0;
parent->OffsetHigh = 0;
}
~GstCudaIpcClientConnWin32 ()
{
if (pipe != INVALID_HANDLE_VALUE) {
CancelIo (pipe);
CloseHandle (pipe);
}
}
HANDLE pipe;
};
struct GstCudaIpcClientWin32Private
{
GstCudaIpcClientWin32Private ()
{
wakeup_event = CreateEvent (nullptr, FALSE, FALSE, nullptr);
cancellable = CreateEvent (nullptr, TRUE, FALSE, nullptr);
}
~GstCudaIpcClientWin32Private ()
{
CloseHandle (wakeup_event);
CloseHandle (cancellable);
if (server_process)
CloseHandle (server_process);
}
std::string address;
GstClockTime timeout;
std::mutex lock;
std::condition_variable cond;
HANDLE wakeup_event;
HANDLE cancellable;
HANDLE server_process = nullptr;
guint last_err = ERROR_SUCCESS;
bool flushing = false;
};
/* *INDENT-ON* */
struct _GstCudaIpcClientWin32
{
GstCudaIpcClient parent;
GstCudaIpcClientWin32Private *priv;
};
static void gst_cuda_ipc_client_win32_finalize (GObject * object);
static bool gst_cuda_ipc_client_win32_send_msg (GstCudaIpcClient * client,
GstCudaIpcClientConn * conn);
static bool gst_cuda_ipc_client_win32_wait_msg (GstCudaIpcClient * client,
GstCudaIpcClientConn * conn);
static void gst_cuda_ipc_client_win32_terminate (GstCudaIpcClient * client);
static void gst_cuda_ipc_client_win32_invoke (GstCudaIpcClient * client);
static void gst_cuda_ipc_client_win32_set_flushing (GstCudaIpcClient * client,
bool flushing);
static void gst_cuda_ipc_client_win32_loop (GstCudaIpcClient * client);
static bool gst_cuda_ipc_client_win32_config (GstCudaIpcClient * client,
GstCudaPid pid, gboolean use_mmap);
#define gst_cuda_ipc_client_win32_parent_class parent_class
G_DEFINE_TYPE (GstCudaIpcClientWin32,
gst_cuda_ipc_client_win32, GST_TYPE_CUDA_IPC_CLIENT);
static void
gst_cuda_ipc_client_win32_class_init (GstCudaIpcClientWin32Class * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstCudaIpcClientClass *client_class = GST_CUDA_IPC_CLIENT_CLASS (klass);
object_class->finalize = gst_cuda_ipc_client_win32_finalize;
client_class->send_msg =
GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_send_msg);
client_class->wait_msg =
GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_wait_msg);
client_class->terminate =
GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_terminate);
client_class->invoke = GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_invoke);
client_class->set_flushing =
GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_set_flushing);
client_class->loop = GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_loop);
client_class->config = GST_DEBUG_FUNCPTR (gst_cuda_ipc_client_win32_config);
}
static void
gst_cuda_ipc_client_win32_init (GstCudaIpcClientWin32 * self)
{
self->priv = new GstCudaIpcClientWin32Private ();
}
static void
gst_cuda_ipc_client_win32_finalize (GObject * object)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (object);
GST_DEBUG_OBJECT (self, "finalize");
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void WINAPI
gst_cuda_ipc_client_win32_send_msg_finish (DWORD error_code, DWORD size,
OVERLAPPED * overlap)
{
GstCudaIpcClientConnWin32 *win32_conn =
static_cast < GstCudaIpcClientConnWin32 * >(overlap);
GstCudaIpcClient *client = win32_conn->client;
bool ret = true;
if (error_code != ERROR_SUCCESS) {
auto err = gst_cuda_ipc_win32_error_to_string (error_code);
GST_WARNING_OBJECT (client, "WriteFileEx callback failed with 0x%x (%s)",
(guint) error_code, err.c_str ());
ret = false;
}
gst_cuda_ipc_client_send_msg_finish (client, ret);
}
static bool
gst_cuda_ipc_client_win32_send_msg (GstCudaIpcClient * client,
GstCudaIpcClientConn * conn)
{
GstCudaIpcClientConnWin32 *win32_conn =
static_cast < GstCudaIpcClientConnWin32 * >(conn);
if (!WriteFileEx (win32_conn->pipe, &conn->client_msg[0],
conn->client_msg.size (), win32_conn,
gst_cuda_ipc_client_win32_send_msg_finish)) {
guint last_err = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (last_err);
GST_WARNING_OBJECT (client, "WriteFileEx failed with 0x%x (%s)",
last_err, err.c_str ());
return false;
}
return true;
}
static void
gst_cuda_ipc_client_win32_finish_have_mmap_data (GstCudaIpcClient * client,
GstCudaIpcClientConnWin32 * win32_conn)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
GstClockTime pts;
GstCudaIpcMemLayout layout;
GstCudaSharableHandle server_handle = nullptr;
GstCudaSharableHandle client_handle = nullptr;
GstCaps *caps = nullptr;
std::vector < guint8 > meta;
if (!priv->server_process) {
GST_ERROR_OBJECT (self, "Server process handle is not available");
goto error;
}
if (!gst_cuda_ipc_pkt_parse_have_mmap_data (win32_conn->server_msg, pts,
layout, &server_handle, &caps, meta)) {
GST_ERROR_OBJECT (self, "Couldn't parse MMAP-DATA");
goto error;
}
if (!DuplicateHandle (priv->server_process, server_handle,
GetCurrentProcess (), &client_handle, 0, FALSE,
DUPLICATE_SAME_ACCESS)) {
DWORD error_code = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (error_code);
GST_ERROR_OBJECT (self, "Couldn't duplicate handle, 0x%x (%s)",
(guint) error_code, err.c_str ());
goto error;
}
gst_cuda_ipc_client_have_mmap_data (client, pts, layout, caps,
server_handle, client_handle, meta);
return;
error:
gst_cuda_ipc_client_wait_msg_finish (client, false);
}
static void WINAPI
gst_cuda_ipc_client_win32_payload_finish (DWORD error_code, DWORD size,
OVERLAPPED * overlap)
{
GstCudaIpcClientConnWin32 *win32_conn =
static_cast < GstCudaIpcClientConnWin32 * >(overlap);
GstCudaIpcClient *client = win32_conn->client;
GstCudaIpcPacketHeader header;
bool ret = true;
if (error_code != ERROR_SUCCESS) {
auto err = gst_cuda_ipc_win32_error_to_string (error_code);
GST_WARNING_OBJECT (client, "ReadFileEx callback failed with 0x%x (%s)",
(guint) error_code, err.c_str ());
ret = false;
} else if (!gst_cuda_ipc_pkt_identify (win32_conn->server_msg, header)) {
GST_ERROR_OBJECT (client, "Broken header");
ret = false;
} else if (header.type == GstCudaIpcPktType::HAVE_MMAP_DATA) {
gst_cuda_ipc_client_win32_finish_have_mmap_data (client, win32_conn);
return;
}
gst_cuda_ipc_client_wait_msg_finish (client, ret);
}
static void WINAPI
gst_cuda_ipc_client_win32_wait_msg_finish (DWORD error_code, DWORD size,
OVERLAPPED * overlap)
{
GstCudaIpcClientConnWin32 *win32_conn =
static_cast < GstCudaIpcClientConnWin32 * >(overlap);
GstCudaIpcClient *client = win32_conn->client;
GstCudaIpcPacketHeader header;
if (error_code != ERROR_SUCCESS) {
auto err = gst_cuda_ipc_win32_error_to_string (error_code);
GST_WARNING_OBJECT (client, "ReadFileEx callback failed with 0x%x (%s)",
(guint) error_code, err.c_str ());
gst_cuda_ipc_client_wait_msg_finish (client, false);
return;
}
if (!gst_cuda_ipc_pkt_identify (win32_conn->server_msg, header)) {
GST_ERROR_OBJECT (client, "Broken header");
gst_cuda_ipc_client_wait_msg_finish (client, false);
return;
}
if (header.payload_size == 0) {
gst_cuda_ipc_client_wait_msg_finish (client, true);
return;
}
GST_LOG_OBJECT (client, "Reading payload");
if (!ReadFileEx (win32_conn->pipe, &win32_conn->server_msg[0] +
GST_CUDA_IPC_PKT_HEADER_SIZE, header.payload_size, win32_conn,
gst_cuda_ipc_client_win32_payload_finish)) {
guint last_err = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (last_err);
GST_WARNING_OBJECT (client, "ReadFileEx failed with 0x%x (%s)",
last_err, err.c_str ());
gst_cuda_ipc_client_wait_msg_finish (client, false);
}
}
static bool
gst_cuda_ipc_client_win32_wait_msg (GstCudaIpcClient * client,
GstCudaIpcClientConn * conn)
{
GstCudaIpcClientConnWin32 *win32_conn =
static_cast < GstCudaIpcClientConnWin32 * >(conn);
if (!ReadFileEx (win32_conn->pipe, &conn->server_msg[0],
GST_CUDA_IPC_PKT_HEADER_SIZE, win32_conn,
gst_cuda_ipc_client_win32_wait_msg_finish)) {
guint last_err = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (last_err);
GST_WARNING_OBJECT (client, "ReadFileEx failed with 0x%x (%s)",
last_err, err.c_str ());
return false;
}
return true;
}
static void
gst_cuda_ipc_client_win32_terminate (GstCudaIpcClient * client)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
SetEvent (priv->cancellable);
}
static void
gst_cuda_ipc_client_win32_invoke (GstCudaIpcClient * client)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
SetEvent (priv->wakeup_event);
}
static void
gst_cuda_ipc_client_win32_set_flushing (GstCudaIpcClient * client,
bool flushing)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
std::lock_guard < std::mutex > lk (priv->lock);
priv->flushing = flushing;
priv->cond.notify_all ();
}
static bool
gst_cuda_ipc_client_win32_config (GstCudaIpcClient * client, GstCudaPid pid,
gboolean use_mmap)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
if (!use_mmap)
return TRUE;
if (priv->server_process) {
GST_WARNING_OBJECT (self, "Have server process already");
CloseHandle (priv->server_process);
}
priv->server_process = OpenProcess (PROCESS_DUP_HANDLE, FALSE, pid);
if (priv->server_process)
return true;
DWORD error_code = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (error_code);
GST_ERROR_OBJECT (self, "Couldn't open server process, 0x%x (%s)",
(guint) error_code, err.c_str ());
return false;
}
static void
gst_cuda_ipc_client_win32_loop (GstCudaIpcClient * client)
{
GstCudaIpcClientWin32 *self = GST_CUDA_IPC_CLIENT_WIN32 (client);
GstCudaIpcClientWin32Private *priv = self->priv;
DWORD mode = PIPE_READMODE_MESSAGE;
guint wait_ret;
HANDLE pipe = INVALID_HANDLE_VALUE;
GstClockTime start_time = gst_util_get_timestamp ();
std::unique_lock < std::mutex > lk (priv->lock);
do {
GstClockTime diff;
if (priv->flushing) {
GST_DEBUG_OBJECT (self, "We are flushing");
gst_cuda_ipc_client_abort (client);
return;
}
pipe = CreateFileA (priv->address.c_str (),
GENERIC_READ | GENERIC_WRITE, 0, nullptr, OPEN_EXISTING,
FILE_FLAG_OVERLAPPED, nullptr);
if (pipe != INVALID_HANDLE_VALUE)
break;
if (priv->timeout > 0) {
diff = gst_util_get_timestamp () - start_time;
if (diff > priv->timeout) {
GST_WARNING_OBJECT (self, "Timeout");
gst_cuda_ipc_client_abort (client);
return;
}
}
/* Retry per 100ms */
GST_DEBUG_OBJECT (self, "Sleep for next retry");
priv->cond.wait_for (lk, std::chrono::milliseconds (100));
} while (true);
lk.unlock ();
g_assert (pipe != INVALID_HANDLE_VALUE);
if (!SetNamedPipeHandleState (pipe, &mode, nullptr, nullptr)) {
priv->last_err = GetLastError ();
auto err = gst_cuda_ipc_win32_error_to_string (priv->last_err);
GST_WARNING_OBJECT (self, "SetNamedPipeHandleState failed with 0x%x (%s)",
priv->last_err, err.c_str ());
CloseHandle (pipe);
gst_cuda_ipc_client_abort (client);
return;
}
auto conn = std::make_shared < GstCudaIpcClientConnWin32 > (pipe);
gst_cuda_ipc_client_new_connection (client, conn);
HANDLE waitables[] = { priv->cancellable, priv->wakeup_event };
do {
/* Enters alertable thread state and wait for I/O completion event
* or cancellable event */
wait_ret = WaitForMultipleObjectsEx (G_N_ELEMENTS (waitables), waitables,
FALSE, INFINITE, TRUE);
if (wait_ret == WAIT_OBJECT_0) {
GST_DEBUG ("Operation cancelled");
return;
}
switch (wait_ret) {
case WAIT_IO_COMPLETION:
break;
case WAIT_OBJECT_0 + 1:
gst_cuda_ipc_client_on_idle (client);
break;
default:
GST_WARNING ("Unexpected wait return 0x%x", wait_ret);
gst_cuda_ipc_client_abort (client);
return;
}
} while (true);
}
GstCudaIpcClient *
gst_cuda_ipc_client_new (const gchar * address, GstCudaContext * context,
GstCudaStream * stream, GstCudaIpcIOMode io_mode, guint timeout,
guint buffer_size)
{
GstCudaIpcClient *client;
GstCudaIpcClientWin32 *self;
g_return_val_if_fail (address, nullptr);
g_return_val_if_fail (GST_IS_CUDA_CONTEXT (context), nullptr);
self = (GstCudaIpcClientWin32 *)
g_object_new (GST_TYPE_CUDA_IPC_CLIENT_WIN32, nullptr);
gst_object_ref_sink (self);
self->priv->address = address;
self->priv->timeout = timeout * GST_SECOND;
client = GST_CUDA_IPC_CLIENT (self);
client->context = (GstCudaContext *) gst_object_ref (context);
if (stream)
client->stream = gst_cuda_stream_ref (stream);
client->io_mode = io_mode;
client->buffer_size = buffer_size;
return client;
}