Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include <grpc/support/port_platform.h> |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 35 | |
| 36 | #ifdef GPR_WINSOCK_SOCKET |
| 37 | |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 38 | #include <grpc/support/alloc.h> |
| 39 | #include <grpc/support/log.h> |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 40 | #include <grpc/support/string_util.h> |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 41 | |
Nicolas Noble | 45e67a3 | 2015-02-09 16:20:49 -0800 | [diff] [blame] | 42 | #include "src/core/iomgr/iocp_windows.h" |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 43 | #include "src/core/iomgr/iomgr_internal.h" |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 44 | #include "src/core/iomgr/pollset.h" |
| 45 | #include "src/core/iomgr/pollset_windows.h" |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 46 | #include "src/core/iomgr/socket_windows.h" |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 47 | |
Craig Tiller | 33da332 | 2015-06-02 10:29:40 -0700 | [diff] [blame] | 48 | grpc_winsocket *grpc_winsocket_create(SOCKET socket, const char *name) { |
Jan Tattermusch | 7913dea | 2015-07-09 20:37:17 -0700 | [diff] [blame] | 49 | char *final_name; |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 50 | grpc_winsocket *r = gpr_malloc(sizeof(grpc_winsocket)); |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 51 | memset(r, 0, sizeof(grpc_winsocket)); |
| 52 | r->socket = socket; |
| 53 | gpr_mu_init(&r->state_mu); |
Jan Tattermusch | 7913dea | 2015-07-09 20:37:17 -0700 | [diff] [blame] | 54 | gpr_asprintf(&final_name, "%s:socket=0x%p", name, r); |
| 55 | grpc_iomgr_register_object(&r->iomgr_object, final_name); |
| 56 | gpr_free(final_name); |
Nicolas Noble | 45e67a3 | 2015-02-09 16:20:49 -0800 | [diff] [blame] | 57 | grpc_iocp_add_socket(r); |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 58 | return r; |
| 59 | } |
| 60 | |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 61 | /* Schedule a shutdown of the socket operations. Will call the pending |
| 62 | operations to abort them. We need to do that this way because of the |
| 63 | various callsites of that function, which happens to be in various |
| 64 | mutex hold states, and that'd be unsafe to call them directly. */ |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 65 | int grpc_winsocket_shutdown(grpc_winsocket *winsocket) { |
Nicolas Noble | e144536 | 2015-05-11 17:40:26 -0700 | [diff] [blame] | 66 | int callbacks_set = 0; |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 67 | SOCKET socket; |
| 68 | gpr_mu_lock(&winsocket->state_mu); |
| 69 | socket = winsocket->socket; |
| 70 | if (winsocket->read_info.cb) { |
Nicolas Noble | e144536 | 2015-05-11 17:40:26 -0700 | [diff] [blame] | 71 | callbacks_set++; |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 72 | grpc_iomgr_closure_init(&winsocket->shutdown_closure, |
| 73 | winsocket->read_info.cb, |
| 74 | winsocket->read_info.opaque); |
| 75 | grpc_iomgr_add_delayed_callback(&winsocket->shutdown_closure, 0); |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 76 | } |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 77 | if (winsocket->write_info.cb) { |
Nicolas Noble | e144536 | 2015-05-11 17:40:26 -0700 | [diff] [blame] | 78 | callbacks_set++; |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 79 | grpc_iomgr_closure_init(&winsocket->shutdown_closure, |
| 80 | winsocket->write_info.cb, |
| 81 | winsocket->write_info.opaque); |
| 82 | grpc_iomgr_add_delayed_callback(&winsocket->shutdown_closure, 0); |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 83 | } |
Nicolas "Pixel" Noble | e503cd5 | 2015-07-14 02:27:23 +0200 | [diff] [blame^] | 84 | gpr_mu_unlock(&winsocket->state_mu); |
| 85 | closesocket(socket); |
Nicolas Noble | e144536 | 2015-05-11 17:40:26 -0700 | [diff] [blame] | 86 | return callbacks_set; |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 87 | } |
| 88 | |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 89 | /* Abandons a socket. Either we're going to queue it up for garbage collecting |
| 90 | from the IO Completion Port thread, or destroy it immediately. Note that this |
| 91 | mechanisms assumes that we're either always waiting for an operation, or we |
Nicolas "Pixel" Noble | e34a45a | 2015-05-07 18:41:07 +0200 | [diff] [blame] | 92 | explicitly know that we don't. If there is a future case where we can have |
Nicolas "Pixel" Noble | 0f981e9 | 2015-05-03 10:40:56 +0200 | [diff] [blame] | 93 | an "idle" socket which is neither trying to read or write, we'd start leaking |
| 94 | both memory and sockets. */ |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 95 | void grpc_winsocket_orphan(grpc_winsocket *winsocket) { |
Jan Tattermusch | c2e5be9 | 2015-06-04 13:54:27 -0700 | [diff] [blame] | 96 | grpc_iomgr_unregister_object(&winsocket->iomgr_object); |
Nicolas "Pixel" Noble | e34a45a | 2015-05-07 18:41:07 +0200 | [diff] [blame] | 97 | if (winsocket->read_info.outstanding || winsocket->write_info.outstanding) { |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 98 | grpc_iocp_socket_orphan(winsocket); |
Nicolas "Pixel" Noble | e34a45a | 2015-05-07 18:41:07 +0200 | [diff] [blame] | 99 | } else { |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 100 | grpc_winsocket_destroy(winsocket); |
| 101 | } |
Nicolas Noble | 8703f4d | 2015-03-23 13:52:18 -0700 | [diff] [blame] | 102 | } |
| 103 | |
Nicolas "Pixel" Noble | 404fc6a | 2015-05-02 02:34:39 -0700 | [diff] [blame] | 104 | void grpc_winsocket_destroy(grpc_winsocket *winsocket) { |
| 105 | gpr_mu_destroy(&winsocket->state_mu); |
| 106 | gpr_free(winsocket); |
Nicolas "Pixel" Noble | 21f627a | 2015-02-04 01:31:14 +0100 | [diff] [blame] | 107 | } |
| 108 | |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 109 | #endif /* GPR_WINSOCK_SOCKET */ |