diff options
author | Brad King <brad.king@kitware.com> | 2019-01-16 20:00:33 (GMT) |
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committer | Brad King <brad.king@kitware.com> | 2019-01-17 15:26:32 (GMT) |
commit | 1e1209729b26312cb511d5995bd57b6f5d35235e (patch) | |
tree | 8fb1927e363a9278f103a9a70a5a7923d398cbaf /Utilities/cmlibuv/src/win/udp.c | |
parent | c59eae7ebc5423c2b06befd762f8639b0f23b7a0 (diff) | |
parent | 4fcb0d0213112bb2fdb04bb27e82543b93cfe41d (diff) | |
download | CMake-1e1209729b26312cb511d5995bd57b6f5d35235e.zip CMake-1e1209729b26312cb511d5995bd57b6f5d35235e.tar.gz CMake-1e1209729b26312cb511d5995bd57b6f5d35235e.tar.bz2 |
Merge branch 'upstream-libuv' into update-libuv
* upstream-libuv:
libuv 2019-01-15 (f84c5e69)
Diffstat (limited to 'Utilities/cmlibuv/src/win/udp.c')
-rw-r--r-- | Utilities/cmlibuv/src/win/udp.c | 95 |
1 files changed, 46 insertions, 49 deletions
diff --git a/Utilities/cmlibuv/src/win/udp.c b/Utilities/cmlibuv/src/win/udp.c index cd1d0e0..37df849 100644 --- a/Utilities/cmlibuv/src/win/udp.c +++ b/Utilities/cmlibuv/src/win/udp.c @@ -74,8 +74,8 @@ static int uv_udp_set_socket(uv_loop_t* loop, uv_udp_t* handle, SOCKET socket, return GetLastError(); } - /* Associate it with the I/O completion port. */ - /* Use uv_handle_t pointer as completion key. */ + /* Associate it with the I/O completion port. Use uv_handle_t pointer as + * completion key. */ if (CreateIoCompletionPort((HANDLE)socket, loop->iocp, (ULONG_PTR)socket, @@ -83,31 +83,28 @@ static int uv_udp_set_socket(uv_loop_t* loop, uv_udp_t* handle, SOCKET socket, return GetLastError(); } - if (pSetFileCompletionNotificationModes) { - /* All known Windows that support SetFileCompletionNotificationModes */ - /* have a bug that makes it impossible to use this function in */ - /* conjunction with datagram sockets. We can work around that but only */ - /* if the user is using the default UDP driver (AFD) and has no other */ - /* LSPs stacked on top. Here we check whether that is the case. */ - opt_len = (int) sizeof info; - if (getsockopt(socket, - SOL_SOCKET, - SO_PROTOCOL_INFOW, - (char*) &info, - &opt_len) == SOCKET_ERROR) { - return GetLastError(); - } + /* All known Windows that support SetFileCompletionNotificationModes have a + * bug that makes it impossible to use this function in conjunction with + * datagram sockets. We can work around that but only if the user is using + * the default UDP driver (AFD) and has no other. LSPs stacked on top. Here + * we check whether that is the case. */ + opt_len = (int) sizeof info; + if (getsockopt( + socket, SOL_SOCKET, SO_PROTOCOL_INFOW, (char*) &info, &opt_len) == + SOCKET_ERROR) { + return GetLastError(); + } - if (info.ProtocolChain.ChainLen == 1) { - if (pSetFileCompletionNotificationModes((HANDLE)socket, - FILE_SKIP_SET_EVENT_ON_HANDLE | - FILE_SKIP_COMPLETION_PORT_ON_SUCCESS)) { - handle->flags |= UV_HANDLE_SYNC_BYPASS_IOCP; - handle->func_wsarecv = uv_wsarecv_workaround; - handle->func_wsarecvfrom = uv_wsarecvfrom_workaround; - } else if (GetLastError() != ERROR_INVALID_FUNCTION) { - return GetLastError(); - } + if (info.ProtocolChain.ChainLen == 1) { + if (SetFileCompletionNotificationModes( + (HANDLE) socket, + FILE_SKIP_SET_EVENT_ON_HANDLE | + FILE_SKIP_COMPLETION_PORT_ON_SUCCESS)) { + handle->flags |= UV_HANDLE_SYNC_BYPASS_IOCP; + handle->func_wsarecv = uv_wsarecv_workaround; + handle->func_wsarecvfrom = uv_wsarecvfrom_workaround; + } else if (GetLastError() != ERROR_INVALID_FUNCTION) { + return GetLastError(); } } @@ -191,7 +188,7 @@ void uv_udp_close(uv_loop_t* loop, uv_udp_t* handle) { void uv_udp_endgame(uv_loop_t* loop, uv_udp_t* handle) { - if (handle->flags & UV__HANDLE_CLOSING && + if (handle->flags & UV_HANDLE_CLOSING && handle->reqs_pending == 0) { assert(!(handle->flags & UV_HANDLE_CLOSED)); uv__handle_close(handle); @@ -245,12 +242,12 @@ static int uv_udp_maybe_bind(uv_udp_t* handle, handle->flags |= UV_HANDLE_IPV6; if (addr->sa_family == AF_INET6 && !(flags & UV_UDP_IPV6ONLY)) { - /* On windows IPV6ONLY is on by default. */ - /* If the user doesn't specify it libuv turns it off. */ + /* On windows IPV6ONLY is on by default. If the user doesn't specify it + * libuv turns it off. */ - /* TODO: how to handle errors? This may fail if there is no ipv4 stack */ - /* available, or when run on XP/2003 which have no support for dualstack */ - /* sockets. For now we're silently ignoring the error. */ + /* TODO: how to handle errors? This may fail if there is no ipv4 stack + * available, or when run on XP/2003 which have no support for dualstack + * sockets. For now we're silently ignoring the error. */ setsockopt(handle->socket, IPPROTO_IPV6, IPV6_V6ONLY, @@ -369,7 +366,7 @@ int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, int err; if (handle->flags & UV_HANDLE_READING) { - return WSAEALREADY; + return UV_EALREADY; } err = uv_udp_maybe_bind(handle, @@ -377,7 +374,7 @@ int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, sizeof(uv_addr_ip4_any_), 0); if (err) - return err; + return uv_translate_sys_error(err); handle->flags |= UV_HANDLE_READING; INCREASE_ACTIVE_COUNT(loop, handle); @@ -386,8 +383,8 @@ int uv__udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, handle->recv_cb = recv_cb; handle->alloc_cb = alloc_cb; - /* If reading was stopped and then started again, there could still be a */ - /* recv request pending. */ + /* If reading was stopped and then started again, there could still be a recv + * request pending. */ if (!(handle->flags & UV_HANDLE_READ_PENDING)) uv_udp_queue_recv(loop, handle); @@ -467,19 +464,19 @@ void uv_process_udp_recv_req(uv_loop_t* loop, uv_udp_t* handle, if (!REQ_SUCCESS(req)) { DWORD err = GET_REQ_SOCK_ERROR(req); if (err == WSAEMSGSIZE) { - /* Not a real error, it just indicates that the received packet */ - /* was bigger than the receive buffer. */ + /* Not a real error, it just indicates that the received packet was + * bigger than the receive buffer. */ } else if (err == WSAECONNRESET || err == WSAENETRESET) { - /* A previous sendto operation failed; ignore this error. If */ - /* zero-reading we need to call WSARecv/WSARecvFrom _without_ the */ - /* MSG_PEEK flag to clear out the error queue. For nonzero reads, */ - /* immediately queue a new receive. */ + /* A previous sendto operation failed; ignore this error. If zero-reading + * we need to call WSARecv/WSARecvFrom _without_ the. MSG_PEEK flag to + * clear out the error queue. For nonzero reads, immediately queue a new + * receive. */ if (!(handle->flags & UV_HANDLE_ZERO_READ)) { goto done; } } else { - /* A real error occurred. Report the error to the user only if we're */ - /* currently reading. */ + /* A real error occurred. Report the error to the user only if we're + * currently reading. */ if (handle->flags & UV_HANDLE_READING) { uv_udp_recv_stop(handle); buf = (handle->flags & UV_HANDLE_ZERO_READ) ? @@ -503,8 +500,8 @@ void uv_process_udp_recv_req(uv_loop_t* loop, uv_udp_t* handle, struct sockaddr_storage from; int from_len; - /* Do a nonblocking receive */ - /* TODO: try to read multiple datagrams at once. FIONREAD maybe? */ + /* Do a nonblocking receive. + * TODO: try to read multiple datagrams at once. FIONREAD maybe? */ buf = uv_buf_init(NULL, 0); handle->alloc_cb((uv_handle_t*) handle, 65536, &buf); if (buf.base == NULL || buf.len == 0) { @@ -741,7 +738,7 @@ int uv_udp_set_multicast_interface(uv_udp_t* handle, const char* interface_addr) return UV_EINVAL; } - if (!(handle->flags & UV_HANDLE_BOUND)) + if (handle->socket == INVALID_SOCKET) return UV_EBADF; if (addr_st.ss_family == AF_INET) { @@ -772,7 +769,7 @@ int uv_udp_set_multicast_interface(uv_udp_t* handle, const char* interface_addr) int uv_udp_set_broadcast(uv_udp_t* handle, int value) { BOOL optval = (BOOL) value; - if (!(handle->flags & UV_HANDLE_BOUND)) + if (handle->socket == INVALID_SOCKET) return UV_EBADF; if (setsockopt(handle->socket, @@ -818,7 +815,7 @@ int uv_udp_open(uv_udp_t* handle, uv_os_sock_t sock) { return UV_EINVAL; \ } \ \ - if (!(handle->flags & UV_HANDLE_BOUND)) \ + if (handle->socket == INVALID_SOCKET) \ return UV_EBADF; \ \ if (!(handle->flags & UV_HANDLE_IPV6)) { \ |