From: Guillaume Charifi Subject: [PATCH v12 1/2] ntdll/socket: Implement exclusive flag for IOCTL_AFD_POLL. Message-Id: <20210916172154.129029-1-guillaume.charifi@sfr.fr> Date: Thu, 16 Sep 2021 19:21:54 +0200 Signed-off-by: Guillaume Charifi --- dlls/ntdll/unix/socket.c | 6 ++-- include/wine/afd.h | 2 +- server/protocol.def | 1 + server/sock.c | 73 ++++++++++++++++++++++++++++++++++++++-- 4 files changed, 75 insertions(+), 7 deletions(-) diff --git a/dlls/ntdll/unix/socket.c b/dlls/ntdll/unix/socket.c index 73d61c0d4e6..c40d0b526d7 100644 --- a/dlls/ntdll/unix/socket.c +++ b/dlls/ntdll/unix/socket.c @@ -736,12 +736,11 @@ static NTSTATUS sock_poll( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, voi || in_size < offsetof( struct afd_poll_params, sockets[params->count] )) return STATUS_INVALID_PARAMETER; - TRACE( "timeout %s, count %u, unknown %#x, padding (%#x, %#x, %#x), sockets[0] {%04lx, %#x}\n", - wine_dbgstr_longlong(params->timeout), params->count, params->unknown, + TRACE( "timeout %s, count %u, exclusive %u, padding (%#x, %#x, %#x), sockets[0] {%04lx, %#x}\n", + wine_dbgstr_longlong(params->timeout), params->count, params->exclusive, params->padding[0], params->padding[1], params->padding[2], params->sockets[0].socket, params->sockets[0].flags ); - if (params->unknown) FIXME( "unknown boolean is %#x\n", params->unknown ); if (params->padding[0]) FIXME( "padding[0] is %#x\n", params->padding[0] ); if (params->padding[1]) FIXME( "padding[1] is %#x\n", params->padding[1] ); if (params->padding[2]) FIXME( "padding[2] is %#x\n", params->padding[2] ); @@ -782,6 +781,7 @@ static NTSTATUS sock_poll( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, voi SERVER_START_REQ( poll_socket ) { req->async = server_async( handle, &async->io, event, apc, apc_user, iosb_client_ptr(io) ); + req->exclusive = !!params->exclusive; req->timeout = params->timeout; wine_server_add_data( req, input, params->count * sizeof(*input) ); wine_server_set_reply( req, async->sockets, params->count * sizeof(async->sockets[0]) ); diff --git a/include/wine/afd.h b/include/wine/afd.h index e67ecae25a9..f4682f464e8 100644 --- a/include/wine/afd.h +++ b/include/wine/afd.h @@ -104,7 +104,7 @@ struct afd_poll_params { LONGLONG timeout; unsigned int count; - BOOLEAN unknown; + BOOLEAN exclusive; BOOLEAN padding[3]; struct { diff --git a/server/protocol.def b/server/protocol.def index a5030fcf813..6a3faf3e625 100644 --- a/server/protocol.def +++ b/server/protocol.def @@ -1451,6 +1451,7 @@ struct poll_socket_output /* Perform an async poll on a socket */ @REQ(poll_socket) + int exclusive; async_data_t async; /* async I/O parameters */ timeout_t timeout; /* timeout */ VARARG(sockets,poll_socket_input); /* list of sockets to poll */ diff --git a/server/sock.c b/server/sock.c index fc234e89865..4ceff1b943e 100644 --- a/server/sock.c +++ b/server/sock.c @@ -128,6 +128,7 @@ struct poll_req struct async *async; struct iosb *iosb; struct timeout_user *timeout; + int exclusive; unsigned int count; struct poll_socket_output *output; struct @@ -205,6 +206,7 @@ struct sock struct list accept_list; /* list of pending accept requests */ struct accept_req *accept_recv_req; /* pending accept-into request which will recv on this socket */ struct connect_req *connect_req; /* pending connection request */ + struct poll_req *main_poll; /* main poll */ union win_sockaddr addr; /* socket name */ int addr_len; /* socket name length */ unsigned int rcvbuf; /* advisory recv buffer size */ @@ -231,6 +233,7 @@ static int sock_get_poll_events( struct fd *fd ); static void sock_poll_event( struct fd *fd, int event ); static enum server_fd_type sock_get_fd_type( struct fd *fd ); static void sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async ); +static void sock_cancel_async( struct fd *fd, struct async *async ); static void sock_queue_async( struct fd *fd, struct async *async, int type, int count ); static void sock_reselect_async( struct fd *fd, struct async_queue *queue ); @@ -274,7 +277,7 @@ static const struct fd_ops sock_fd_ops = default_fd_get_file_info, /* get_file_info */ no_fd_get_volume_info, /* get_volume_info */ sock_ioctl, /* ioctl */ - default_fd_cancel_async, /* cancel_async */ + sock_cancel_async, /* cancel_async */ sock_queue_async, /* queue_async */ sock_reselect_async /* reselect_async */ }; @@ -789,6 +792,7 @@ static void free_poll_req( void *private ) for (i = 0; i < req->count; ++i) release_object( req->sockets[i].sock ); + release_object( req->async ); release_object( req->iosb ); list_remove( &req->entry ); @@ -837,6 +841,8 @@ static void complete_async_polls( struct sock *sock, int event, int error ) int flags = get_poll_flags( sock, event ); struct poll_req *req, *next; + sock->main_poll = NULL; + LIST_FOR_EACH_ENTRY_SAFE( req, next, &poll_list, struct poll_req, entry ) { unsigned int i; @@ -865,11 +871,20 @@ static void complete_async_polls( struct sock *sock, int event, int error ) static void async_poll_timeout( void *private ) { struct poll_req *req = private; + unsigned int i; req->timeout = NULL; if (req->iosb->status != STATUS_PENDING) return; + for (i = 0; i < req->count; ++i) + { + struct sock *sock = req->sockets[i].sock; + + if (sock->main_poll == req) + sock->main_poll = NULL; + } + async_request_complete( req->async, STATUS_TIMEOUT, 0, req->count * sizeof(*req->output), req->output ); } @@ -1217,6 +1232,29 @@ static enum server_fd_type sock_get_fd_type( struct fd *fd ) return FD_TYPE_SOCKET; } +static void sock_cancel_async( struct fd *fd, struct async *async ) +{ + struct sock *sock = get_fd_user( fd ); + struct poll_req *req; + + if (sock->main_poll) + { + LIST_FOR_EACH_ENTRY( req, &poll_list, struct poll_req, entry ) + { + if (req->async != async) + continue; + + if (req == sock->main_poll) + { + sock->main_poll = NULL; + break; + } + } + } + + async_terminate( async, STATUS_CANCELLED ); +} + static void sock_queue_async( struct fd *fd, struct async *async, int type, int count ) { struct sock *sock = get_fd_user( fd ); @@ -1383,6 +1421,7 @@ static struct sock *create_socket(void) sock->ifchange_obj = NULL; sock->accept_recv_req = NULL; sock->connect_req = NULL; + sock->main_poll = NULL; memset( &sock->addr, 0, sizeof(sock->addr) ); sock->addr_len = 0; sock->rd_shutdown = 0; @@ -2840,7 +2879,32 @@ static int poll_single_socket( struct sock *sock, int mask ) return get_poll_flags( sock, pollfd.revents ) & mask; } -static void poll_socket( struct sock *poll_sock, struct async *async, timeout_t timeout, +static void poll_handle_exclusive(struct poll_req *req) +{ + unsigned int i; + + for (i = 0; i < req->count; ++i) + { + struct sock *sock = req->sockets[i].sock; + struct poll_req *main_poll = sock->main_poll; + + if (main_poll && main_poll->exclusive && req->exclusive) + { + /* Previous exclusive main poll replaced by new exclusive poll. */ + main_poll->iosb->status = STATUS_SUCCESS; + main_poll->iosb->out_data = main_poll->output; + main_poll->iosb->out_size = main_poll->count * sizeof(*main_poll->output); + async_terminate(main_poll->async, STATUS_ALERTED); + + main_poll = NULL; + } + + if (!main_poll) + sock->main_poll = req; + } +} + +static void poll_socket( struct sock *poll_sock, struct async *async, int exclusive, timeout_t timeout, unsigned int count, const struct poll_socket_input *input ) { struct poll_socket_output *output; @@ -2881,11 +2945,14 @@ static void poll_socket( struct sock *poll_sock, struct async *async, timeout_t req->sockets[i].flags = input[i].flags; } + req->exclusive = exclusive; req->count = count; req->async = (struct async *)grab_object( async ); req->iosb = async_get_iosb( async ); req->output = output; + poll_handle_exclusive(req); + list_add_tail( &poll_list, &req->entry ); async_set_completion_callback( async, free_poll_req, req ); queue_async( &poll_sock->poll_q, async ); @@ -3287,7 +3354,7 @@ DECL_HANDLER(poll_socket) if ((async = create_request_async( sock->fd, get_fd_comp_flags( sock->fd ), &req->async ))) { - poll_socket( sock, async, req->timeout, count, input ); + poll_socket( sock, async, req->exclusive, req->timeout, count, input ); reply->wait = async_handoff( async, NULL, 0 ); reply->options = get_fd_options( sock->fd ); release_object( async ); -- 2.33.0