| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #ifdef GPR_WINSOCK_SOCKET |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| |
| #include "src/core/iomgr/iocp_windows.h" |
| #include "src/core/iomgr/iomgr_internal.h" |
| #include "src/core/iomgr/pollset.h" |
| #include "src/core/iomgr/pollset_windows.h" |
| #include "src/core/iomgr/socket_windows.h" |
| |
| grpc_winsocket *grpc_winsocket_create(SOCKET socket, const char *name) { |
| char *final_name; |
| grpc_winsocket *r = gpr_malloc(sizeof(grpc_winsocket)); |
| memset(r, 0, sizeof(grpc_winsocket)); |
| r->socket = socket; |
| gpr_mu_init(&r->state_mu); |
| gpr_asprintf(&final_name, "%s:socket=0x%p", name, r); |
| grpc_iomgr_register_object(&r->iomgr_object, final_name); |
| gpr_free(final_name); |
| grpc_iocp_add_socket(r); |
| return r; |
| } |
| |
| /* Schedule a shutdown of the socket operations. Will call the pending |
| operations to abort them. We need to do that this way because of the |
| various callsites of that function, which happens to be in various |
| mutex hold states, and that'd be unsafe to call them directly. */ |
| int grpc_winsocket_shutdown(grpc_winsocket *socket) { |
| int callbacks_set = 0; |
| gpr_mu_lock(&socket->state_mu); |
| if (socket->read_info.cb) { |
| callbacks_set++; |
| grpc_iomgr_closure_init(&socket->shutdown_closure, socket->read_info.cb, |
| socket->read_info.opaque); |
| grpc_iomgr_add_delayed_callback(&socket->shutdown_closure, 0); |
| } |
| if (socket->write_info.cb) { |
| callbacks_set++; |
| grpc_iomgr_closure_init(&socket->shutdown_closure, socket->write_info.cb, |
| socket->write_info.opaque); |
| grpc_iomgr_add_delayed_callback(&socket->shutdown_closure, 0); |
| } |
| gpr_mu_unlock(&socket->state_mu); |
| return callbacks_set; |
| } |
| |
| /* Abandons a socket. Either we're going to queue it up for garbage collecting |
| from the IO Completion Port thread, or destroy it immediately. Note that this |
| mechanisms assumes that we're either always waiting for an operation, or we |
| explicitly know that we don't. If there is a future case where we can have |
| an "idle" socket which is neither trying to read or write, we'd start leaking |
| both memory and sockets. */ |
| void grpc_winsocket_orphan(grpc_winsocket *winsocket) { |
| SOCKET socket = winsocket->socket; |
| grpc_iomgr_unregister_object(&winsocket->iomgr_object); |
| if (winsocket->read_info.outstanding || winsocket->write_info.outstanding) { |
| grpc_iocp_socket_orphan(winsocket); |
| } else { |
| grpc_winsocket_destroy(winsocket); |
| } |
| closesocket(socket); |
| } |
| |
| void grpc_winsocket_destroy(grpc_winsocket *winsocket) { |
| gpr_mu_destroy(&winsocket->state_mu); |
| gpr_free(winsocket); |
| } |
| |
| #endif /* GPR_WINSOCK_SOCKET */ |