Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | a93a25f | 2016-01-28 13:55:49 -0800 | [diff] [blame] | 3 | * Copyright 2015-2016, Google Inc. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [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 "src/core/transport/transport.h" |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 35 | #include <grpc/support/alloc.h> |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 36 | #include <grpc/support/atm.h> |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 37 | #include <grpc/support/log.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 38 | #include "src/core/transport/transport_impl.h" |
| 39 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 40 | #ifdef GRPC_STREAM_REFCOUNT_DEBUG |
| 41 | void grpc_stream_ref(grpc_stream_refcount *refcount, const char *reason) { |
| 42 | gpr_atm val = gpr_atm_no_barrier_load(&refcount->refs.count); |
Craig Tiller | 27e5aa4 | 2015-11-24 16:28:54 -0800 | [diff] [blame] | 43 | gpr_log(GPR_DEBUG, "%s %p:%p REF %d->%d %s", refcount->object_type, |
| 44 | refcount, refcount->destroy.cb_arg, val, val + 1, reason); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 45 | #else |
| 46 | void grpc_stream_ref(grpc_stream_refcount *refcount) { |
| 47 | #endif |
Craig Tiller | 0cb803d | 2016-03-02 22:17:24 -0800 | [diff] [blame] | 48 | gpr_ref_non_zero(&refcount->refs); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | #ifdef GRPC_STREAM_REFCOUNT_DEBUG |
| 52 | void grpc_stream_unref(grpc_exec_ctx *exec_ctx, grpc_stream_refcount *refcount, |
| 53 | const char *reason) { |
| 54 | gpr_atm val = gpr_atm_no_barrier_load(&refcount->refs.count); |
Craig Tiller | 27e5aa4 | 2015-11-24 16:28:54 -0800 | [diff] [blame] | 55 | gpr_log(GPR_DEBUG, "%s %p:%p UNREF %d->%d %s", refcount->object_type, |
| 56 | refcount, refcount->destroy.cb_arg, val, val - 1, reason); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 57 | #else |
| 58 | void grpc_stream_unref(grpc_exec_ctx *exec_ctx, |
| 59 | grpc_stream_refcount *refcount) { |
| 60 | #endif |
| 61 | if (gpr_unref(&refcount->refs)) { |
Craig Tiller | 6c39686 | 2016-01-28 13:53:40 -0800 | [diff] [blame] | 62 | grpc_exec_ctx_enqueue(exec_ctx, &refcount->destroy, true, NULL); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 63 | } |
| 64 | } |
| 65 | |
Craig Tiller | 27e5aa4 | 2015-11-24 16:28:54 -0800 | [diff] [blame] | 66 | #ifdef GRPC_STREAM_REFCOUNT_DEBUG |
| 67 | void grpc_stream_ref_init(grpc_stream_refcount *refcount, int initial_refs, |
| 68 | grpc_iomgr_cb_func cb, void *cb_arg, |
| 69 | const char *object_type) { |
| 70 | refcount->object_type = object_type; |
| 71 | #else |
| 72 | void grpc_stream_ref_init(grpc_stream_refcount *refcount, int initial_refs, |
| 73 | grpc_iomgr_cb_func cb, void *cb_arg) { |
| 74 | #endif |
| 75 | gpr_ref_init(&refcount->refs, initial_refs); |
| 76 | grpc_closure_init(&refcount->destroy, cb, cb_arg); |
| 77 | } |
| 78 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 79 | size_t grpc_transport_stream_size(grpc_transport *transport) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 80 | return transport->vtable->sizeof_stream; |
| 81 | } |
| 82 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 83 | void grpc_transport_destroy(grpc_exec_ctx *exec_ctx, |
| 84 | grpc_transport *transport) { |
| 85 | transport->vtable->destroy(exec_ctx, transport); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 86 | } |
| 87 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 88 | int grpc_transport_init_stream(grpc_exec_ctx *exec_ctx, |
| 89 | grpc_transport *transport, grpc_stream *stream, |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 90 | grpc_stream_refcount *refcount, |
| 91 | const void *server_data) { |
| 92 | return transport->vtable->init_stream(exec_ctx, transport, stream, refcount, |
| 93 | server_data); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 94 | } |
| 95 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 96 | void grpc_transport_perform_stream_op(grpc_exec_ctx *exec_ctx, |
| 97 | grpc_transport *transport, |
| 98 | grpc_stream *stream, |
| 99 | grpc_transport_stream_op *op) { |
| 100 | transport->vtable->perform_stream_op(exec_ctx, transport, stream, op); |
Craig Tiller | 3f47542 | 2015-06-25 10:43:05 -0700 | [diff] [blame] | 101 | } |
| 102 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 103 | void grpc_transport_perform_op(grpc_exec_ctx *exec_ctx, |
| 104 | grpc_transport *transport, |
| 105 | grpc_transport_op *op) { |
| 106 | transport->vtable->perform_op(exec_ctx, transport, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 107 | } |
| 108 | |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 109 | void grpc_transport_set_pollset(grpc_exec_ctx *exec_ctx, |
| 110 | grpc_transport *transport, grpc_stream *stream, |
| 111 | grpc_pollset *pollset) { |
| 112 | transport->vtable->set_pollset(exec_ctx, transport, stream, pollset); |
| 113 | } |
| 114 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 115 | void grpc_transport_destroy_stream(grpc_exec_ctx *exec_ctx, |
| 116 | grpc_transport *transport, |
| 117 | grpc_stream *stream) { |
| 118 | transport->vtable->destroy_stream(exec_ctx, transport, stream); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 119 | } |
| 120 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 121 | char *grpc_transport_get_peer(grpc_exec_ctx *exec_ctx, |
| 122 | grpc_transport *transport) { |
| 123 | return transport->vtable->get_peer(exec_ctx, transport); |
Craig Tiller | 1b22b9d | 2015-07-20 13:42:22 -0700 | [diff] [blame] | 124 | } |
| 125 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 126 | void grpc_transport_stream_op_finish_with_failure( |
| 127 | grpc_exec_ctx *exec_ctx, grpc_transport_stream_op *op) { |
Craig Tiller | 6c39686 | 2016-01-28 13:53:40 -0800 | [diff] [blame] | 128 | grpc_exec_ctx_enqueue(exec_ctx, op->recv_message_ready, false, NULL); |
Craig Tiller | a44cbfc | 2016-02-03 16:02:49 -0800 | [diff] [blame] | 129 | grpc_exec_ctx_enqueue(exec_ctx, op->recv_initial_metadata_ready, false, NULL); |
Craig Tiller | 6c39686 | 2016-01-28 13:53:40 -0800 | [diff] [blame] | 130 | grpc_exec_ctx_enqueue(exec_ctx, op->on_complete, false, NULL); |
Craig Tiller | 7e320ba | 2015-04-23 16:28:07 -0700 | [diff] [blame] | 131 | } |
Craig Tiller | 2ea37fd | 2015-04-24 13:03:49 -0700 | [diff] [blame] | 132 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 133 | void grpc_transport_stream_op_add_cancellation(grpc_transport_stream_op *op, |
| 134 | grpc_status_code status) { |
| 135 | GPR_ASSERT(status != GRPC_STATUS_OK); |
| 136 | if (op->cancel_with_status == GRPC_STATUS_OK) { |
| 137 | op->cancel_with_status = status; |
| 138 | } |
| 139 | if (op->close_with_status != GRPC_STATUS_OK) { |
| 140 | op->close_with_status = GRPC_STATUS_OK; |
| 141 | if (op->optional_close_message != NULL) { |
| 142 | gpr_slice_unref(*op->optional_close_message); |
| 143 | op->optional_close_message = NULL; |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 144 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 145 | } |
Craig Tiller | 2ea37fd | 2015-04-24 13:03:49 -0700 | [diff] [blame] | 146 | } |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 147 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 148 | typedef struct { |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 149 | gpr_slice message; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame] | 150 | grpc_closure *then_call; |
| 151 | grpc_closure closure; |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 152 | } close_message_data; |
| 153 | |
Craig Tiller | 6c39686 | 2016-01-28 13:53:40 -0800 | [diff] [blame] | 154 | static void free_message(grpc_exec_ctx *exec_ctx, void *p, bool iomgr_success) { |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 155 | close_message_data *cmd = p; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 156 | gpr_slice_unref(cmd->message); |
| 157 | if (cmd->then_call != NULL) { |
| 158 | cmd->then_call->cb(exec_ctx, cmd->then_call->cb_arg, iomgr_success); |
| 159 | } |
| 160 | gpr_free(cmd); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 161 | } |
| 162 | |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 163 | void grpc_transport_stream_op_add_close(grpc_transport_stream_op *op, |
| 164 | grpc_status_code status, |
| 165 | gpr_slice *optional_message) { |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 166 | close_message_data *cmd; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 167 | GPR_ASSERT(status != GRPC_STATUS_OK); |
| 168 | if (op->cancel_with_status != GRPC_STATUS_OK || |
| 169 | op->close_with_status != GRPC_STATUS_OK) { |
| 170 | if (optional_message) { |
| 171 | gpr_slice_unref(*optional_message); |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 172 | } |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 173 | return; |
| 174 | } |
| 175 | if (optional_message) { |
| 176 | cmd = gpr_malloc(sizeof(*cmd)); |
| 177 | cmd->message = *optional_message; |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 178 | cmd->then_call = op->on_complete; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 179 | grpc_closure_init(&cmd->closure, free_message, cmd); |
Craig Tiller | 9d35a1f | 2015-11-02 14:16:12 -0800 | [diff] [blame] | 180 | op->on_complete = &cmd->closure; |
Craig Tiller | a82950e | 2015-09-22 12:33:20 -0700 | [diff] [blame] | 181 | op->optional_close_message = &cmd->message; |
| 182 | } |
Craig Tiller | 45ce927 | 2015-07-31 11:22:35 -0700 | [diff] [blame] | 183 | op->close_with_status = status; |
| 184 | } |