Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3 | * Copyright 2015, 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/surface/call.h" |
| 35 | #include "src/core/channel/channel_stack.h" |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 36 | #include "src/core/iomgr/alarm.h" |
Craig Tiller | 5096849 | 2015-04-28 17:05:49 -0700 | [diff] [blame] | 37 | #include "src/core/profiling/timers.h" |
Craig Tiller | 485d776 | 2015-01-23 12:54:05 -0800 | [diff] [blame] | 38 | #include "src/core/support/string.h" |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 39 | #include "src/core/surface/byte_buffer_queue.h" |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 40 | #include "src/core/surface/channel.h" |
| 41 | #include "src/core/surface/completion_queue.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 42 | #include <grpc/support/alloc.h> |
| 43 | #include <grpc/support/log.h> |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 44 | #include <assert.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 45 | |
| 46 | #include <stdio.h> |
| 47 | #include <stdlib.h> |
| 48 | #include <string.h> |
| 49 | |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 50 | typedef enum { REQ_INITIAL = 0, REQ_READY, REQ_DONE } req_state; |
| 51 | |
| 52 | typedef enum { |
| 53 | SEND_NOTHING, |
| 54 | SEND_INITIAL_METADATA, |
Craig Tiller | 7bd9b99 | 2015-02-04 08:38:02 -0800 | [diff] [blame] | 55 | SEND_BUFFERED_INITIAL_METADATA, |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 56 | SEND_MESSAGE, |
Craig Tiller | 7bd9b99 | 2015-02-04 08:38:02 -0800 | [diff] [blame] | 57 | SEND_BUFFERED_MESSAGE, |
Craig Tiller | 1c14190 | 2015-01-31 08:51:54 -0800 | [diff] [blame] | 58 | SEND_TRAILING_METADATA_AND_FINISH, |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 59 | SEND_FINISH |
| 60 | } send_action; |
| 61 | |
| 62 | typedef struct { |
| 63 | grpc_ioreq_completion_func on_complete; |
| 64 | void *user_data; |
| 65 | grpc_op_error status; |
| 66 | } completed_request; |
| 67 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 68 | /* See request_set in grpc_call below for a description */ |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 69 | #define REQSET_EMPTY 'X' |
| 70 | #define REQSET_DONE 'Y' |
| 71 | |
| 72 | #define MAX_SEND_INITIAL_METADATA_COUNT 3 |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 73 | |
Craig Tiller | c18c56e | 2015-02-02 15:59:13 -0800 | [diff] [blame] | 74 | typedef struct { |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 75 | /* Overall status of the operation: starts OK, may degrade to |
| 76 | non-OK */ |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 77 | grpc_op_error status; |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 78 | /* Completion function to call at the end of the operation */ |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 79 | grpc_ioreq_completion_func on_complete; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 80 | void *user_data; |
Craig Tiller | d642dcf | 2015-02-03 20:39:09 -0800 | [diff] [blame] | 81 | /* a bit mask of which request ops are needed (1u << opid) */ |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 82 | gpr_uint16 need_mask; |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 83 | /* a bit mask of which request ops are now completed */ |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 84 | gpr_uint16 complete_mask; |
Craig Tiller | c18c56e | 2015-02-02 15:59:13 -0800 | [diff] [blame] | 85 | } reqinfo_master; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 86 | |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 87 | /* Status data for a request can come from several sources; this |
| 88 | enumerates them all, and acts as a priority sorting for which |
| 89 | status to return to the application - earlier entries override |
| 90 | later ones */ |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 91 | typedef enum { |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 92 | /* Status came from the application layer overriding whatever |
| 93 | the wire says */ |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 94 | STATUS_FROM_API_OVERRIDE = 0, |
Craig Tiller | 8b282cb | 2015-04-17 14:57:44 -0700 | [diff] [blame] | 95 | /* Status was created by some internal channel stack operation */ |
| 96 | STATUS_FROM_CORE, |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 97 | /* Status came from 'the wire' - or somewhere below the surface |
| 98 | layer */ |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 99 | STATUS_FROM_WIRE, |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 100 | STATUS_SOURCE_COUNT |
| 101 | } status_source; |
| 102 | |
| 103 | typedef struct { |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 104 | gpr_uint8 is_set; |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 105 | grpc_status_code code; |
| 106 | grpc_mdstr *details; |
| 107 | } received_status; |
| 108 | |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 109 | /* How far through the GRPC stream have we read? */ |
| 110 | typedef enum { |
| 111 | /* We are still waiting for initial metadata to complete */ |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 112 | READ_STATE_INITIAL = 0, |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 113 | /* We have gotten initial metadata, and are reading either |
| 114 | messages or trailing metadata */ |
| 115 | READ_STATE_GOT_INITIAL_METADATA, |
| 116 | /* The stream is closed for reading */ |
| 117 | READ_STATE_READ_CLOSED, |
| 118 | /* The stream is closed for reading & writing */ |
| 119 | READ_STATE_STREAM_CLOSED |
| 120 | } read_state; |
| 121 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 122 | typedef enum { |
| 123 | WRITE_STATE_INITIAL = 0, |
| 124 | WRITE_STATE_STARTED, |
| 125 | WRITE_STATE_WRITE_CLOSED |
| 126 | } write_state; |
| 127 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 128 | struct grpc_call { |
| 129 | grpc_completion_queue *cq; |
| 130 | grpc_channel *channel; |
| 131 | grpc_mdctx *metadata_context; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 132 | /* TODO(ctiller): share with cq if possible? */ |
| 133 | gpr_mu mu; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 134 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 135 | /* how far through the stream have we read? */ |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 136 | read_state read_state; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 137 | /* how far through the stream have we written? */ |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 138 | write_state write_state; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 139 | /* client or server call */ |
| 140 | gpr_uint8 is_client; |
| 141 | /* is the alarm set */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 142 | gpr_uint8 have_alarm; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 143 | /* are we currently performing a send operation */ |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 144 | gpr_uint8 sending; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 145 | /* are we currently performing a recv operation */ |
| 146 | gpr_uint8 receiving; |
Craig Tiller | 991ca9f | 2015-03-03 09:59:22 -0800 | [diff] [blame] | 147 | /* are we currently completing requests */ |
| 148 | gpr_uint8 completing; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 149 | /* pairs with completed_requests */ |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 150 | gpr_uint8 num_completed_requests; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 151 | /* are we currently reading a message? */ |
| 152 | gpr_uint8 reading_message; |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 153 | /* flags with bits corresponding to write states allowing us to determine |
| 154 | what was sent */ |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 155 | gpr_uint16 last_send_contains; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 156 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 157 | /* Active ioreqs. |
| 158 | request_set and request_data contain one element per active ioreq |
| 159 | operation. |
Craig Tiller | ebf94bf | 2015-02-05 08:48:46 -0800 | [diff] [blame] | 160 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 161 | request_set[op] is an integer specifying a set of operations to which |
| 162 | the request belongs: |
Craig Tiller | ebf94bf | 2015-02-05 08:48:46 -0800 | [diff] [blame] | 163 | - if it is < GRPC_IOREQ_OP_COUNT, then this operation is pending |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 164 | completion, and the integer represents to which group of operations |
| 165 | the ioreq belongs. Each group is represented by one master, and the |
| 166 | integer in request_set is an index into masters to find the master |
| 167 | data. |
| 168 | - if it is REQSET_EMPTY, the ioreq op is inactive and available to be |
| 169 | started |
| 170 | - finally, if request_set[op] is REQSET_DONE, then the operation is |
| 171 | complete and unavailable to be started again |
Craig Tiller | ebf94bf | 2015-02-05 08:48:46 -0800 | [diff] [blame] | 172 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 173 | request_data[op] is the request data as supplied by the initiator of |
| 174 | a request, and is valid iff request_set[op] <= GRPC_IOREQ_OP_COUNT. |
| 175 | The set fields are as per the request type specified by op. |
| 176 | |
Craig Tiller | d673162 | 2015-02-03 22:44:13 -0800 | [diff] [blame] | 177 | Finally, one element of masters is set per active _set_ of ioreq |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 178 | operations. It describes work left outstanding, result status, and |
| 179 | what work to perform upon operation completion. As one ioreq of each |
| 180 | op type can be active at once, by convention we choose the first element |
Craig Tiller | d673162 | 2015-02-03 22:44:13 -0800 | [diff] [blame] | 181 | of the group to be the master -- ie the master of in-progress operation |
| 182 | op is masters[request_set[op]]. This allows constant time allocation |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 183 | and a strong upper bound of a count of masters to be calculated. */ |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 184 | gpr_uint8 request_set[GRPC_IOREQ_OP_COUNT]; |
| 185 | grpc_ioreq_data request_data[GRPC_IOREQ_OP_COUNT]; |
Craig Tiller | c18c56e | 2015-02-02 15:59:13 -0800 | [diff] [blame] | 186 | reqinfo_master masters[GRPC_IOREQ_OP_COUNT]; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 187 | |
| 188 | /* Dynamic array of ioreq's that have completed: the count of |
| 189 | elements is queued in num_completed_requests. |
| 190 | This list is built up under lock(), and flushed entirely during |
| 191 | unlock(). |
| 192 | We know the upper bound of the number of elements as we can only |
| 193 | have one ioreq of each type active at once. */ |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 194 | completed_request completed_requests[GRPC_IOREQ_OP_COUNT]; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 195 | /* Incoming buffer of messages */ |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 196 | grpc_byte_buffer_queue incoming_queue; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 197 | /* Buffered read metadata waiting to be returned to the application. |
| 198 | Element 0 is initial metadata, element 1 is trailing metadata. */ |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 199 | grpc_metadata_array buffered_metadata[2]; |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 200 | /* All metadata received - unreffed at once at the end of the call */ |
Craig Tiller | 3a4749f | 2015-01-30 07:51:45 -0800 | [diff] [blame] | 201 | grpc_mdelem **owned_metadata; |
| 202 | size_t owned_metadata_count; |
| 203 | size_t owned_metadata_capacity; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 204 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 205 | /* Received call statuses from various sources */ |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 206 | received_status status[STATUS_SOURCE_COUNT]; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 207 | |
Craig Tiller | 935cf42 | 2015-05-01 14:10:46 -0700 | [diff] [blame] | 208 | void *context[GRPC_CONTEXT_COUNT]; |
| 209 | void (*destroy_context[GRPC_CONTEXT_COUNT])(void *); |
| 210 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 211 | /* Deadline alarm - if have_alarm is non-zero */ |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 212 | grpc_alarm alarm; |
| 213 | |
Craig Tiller | e5d683c | 2015-02-03 16:37:36 -0800 | [diff] [blame] | 214 | /* Call refcount - to keep the call alive during asynchronous operations */ |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 215 | gpr_refcount internal_refcount; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 216 | |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 217 | grpc_linked_mdelem send_initial_metadata[MAX_SEND_INITIAL_METADATA_COUNT]; |
| 218 | grpc_linked_mdelem status_link; |
| 219 | grpc_linked_mdelem details_link; |
| 220 | size_t send_initial_metadata_count; |
| 221 | gpr_timespec send_deadline; |
| 222 | |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 223 | grpc_stream_op_buffer send_ops; |
| 224 | grpc_stream_op_buffer recv_ops; |
| 225 | grpc_stream_state recv_state; |
| 226 | |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 227 | gpr_slice_buffer incoming_message; |
| 228 | gpr_uint32 incoming_message_length; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 229 | }; |
| 230 | |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 231 | #define CALL_STACK_FROM_CALL(call) ((grpc_call_stack *)((call) + 1)) |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 232 | #define CALL_FROM_CALL_STACK(call_stack) (((grpc_call *)(call_stack)) - 1) |
| 233 | #define CALL_ELEM_FROM_CALL(call, idx) \ |
| 234 | grpc_call_stack_element(CALL_STACK_FROM_CALL(call), idx) |
| 235 | #define CALL_FROM_TOP_ELEM(top_elem) \ |
| 236 | CALL_FROM_CALL_STACK(grpc_call_stack_from_top_element(top_elem)) |
| 237 | |
| 238 | static void do_nothing(void *ignored, grpc_op_error also_ignored) {} |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 239 | static void set_deadline_alarm(grpc_call *call, gpr_timespec deadline); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 240 | static void call_on_done_recv(void *call, int success); |
| 241 | static void call_on_done_send(void *call, int success); |
| 242 | static int fill_send_ops(grpc_call *call, grpc_transport_op *op); |
| 243 | static void execute_op(grpc_call *call, grpc_transport_op *op); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 244 | static void recv_metadata(grpc_call *call, grpc_metadata_batch *metadata); |
| 245 | static void finish_read_ops(grpc_call *call); |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 246 | static grpc_call_error cancel_with_status( |
Yang Gao | c71a9d2 | 2015-05-04 00:22:12 -0700 | [diff] [blame] | 247 | grpc_call *c, grpc_status_code status, const char *description, |
| 248 | gpr_uint8 locked); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 249 | |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 250 | grpc_call *grpc_call_create(grpc_channel *channel, grpc_completion_queue *cq, |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 251 | const void *server_transport_data, |
| 252 | grpc_mdelem **add_initial_metadata, |
| 253 | size_t add_initial_metadata_count, |
| 254 | gpr_timespec send_deadline) { |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 255 | size_t i; |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 256 | grpc_transport_op initial_op; |
| 257 | grpc_transport_op *initial_op_ptr = NULL; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 258 | grpc_channel_stack *channel_stack = grpc_channel_get_channel_stack(channel); |
| 259 | grpc_call *call = |
| 260 | gpr_malloc(sizeof(grpc_call) + channel_stack->call_stack_size); |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 261 | memset(call, 0, sizeof(grpc_call)); |
| 262 | gpr_mu_init(&call->mu); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 263 | call->channel = channel; |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 264 | call->cq = cq; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 265 | call->is_client = server_transport_data == NULL; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 266 | for (i = 0; i < GRPC_IOREQ_OP_COUNT; i++) { |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 267 | call->request_set[i] = REQSET_EMPTY; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 268 | } |
Craig Tiller | 23aa6c4 | 2015-01-27 17:16:12 -0800 | [diff] [blame] | 269 | if (call->is_client) { |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 270 | call->request_set[GRPC_IOREQ_SEND_TRAILING_METADATA] = REQSET_DONE; |
| 271 | call->request_set[GRPC_IOREQ_SEND_STATUS] = REQSET_DONE; |
Craig Tiller | 23aa6c4 | 2015-01-27 17:16:12 -0800 | [diff] [blame] | 272 | } |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 273 | GPR_ASSERT(add_initial_metadata_count < MAX_SEND_INITIAL_METADATA_COUNT); |
| 274 | for (i = 0; i < add_initial_metadata_count; i++) { |
| 275 | call->send_initial_metadata[i].md = add_initial_metadata[i]; |
| 276 | } |
| 277 | call->send_initial_metadata_count = add_initial_metadata_count; |
| 278 | call->send_deadline = send_deadline; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 279 | grpc_channel_internal_ref(channel); |
| 280 | call->metadata_context = grpc_channel_get_metadata_context(channel); |
Craig Tiller | fbf5be2 | 2015-04-22 16:17:09 -0700 | [diff] [blame] | 281 | grpc_sopb_init(&call->send_ops); |
| 282 | grpc_sopb_init(&call->recv_ops); |
Craig Tiller | fa4f994 | 2015-04-23 15:22:09 -0700 | [diff] [blame] | 283 | gpr_slice_buffer_init(&call->incoming_message); |
Craig Tiller | 9c71b6f | 2015-04-24 16:02:00 -0700 | [diff] [blame] | 284 | /* dropped in destroy */ |
| 285 | gpr_ref_init(&call->internal_refcount, 1); |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 286 | /* server hack: start reads immediately so we can get initial metadata. |
| 287 | TODO(ctiller): figure out a cleaner solution */ |
| 288 | if (!call->is_client) { |
| 289 | memset(&initial_op, 0, sizeof(initial_op)); |
| 290 | initial_op.recv_ops = &call->recv_ops; |
| 291 | initial_op.recv_state = &call->recv_state; |
| 292 | initial_op.on_done_recv = call_on_done_recv; |
| 293 | initial_op.recv_user_data = call; |
Craig Tiller | 935cf42 | 2015-05-01 14:10:46 -0700 | [diff] [blame] | 294 | initial_op.context = call->context; |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 295 | call->receiving = 1; |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 296 | GRPC_CALL_INTERNAL_REF(call, "receiving"); |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 297 | initial_op_ptr = &initial_op; |
| 298 | } |
| 299 | grpc_call_stack_init(channel_stack, server_transport_data, initial_op_ptr, |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 300 | CALL_STACK_FROM_CALL(call)); |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 301 | if (gpr_time_cmp(send_deadline, gpr_inf_future) != 0) { |
| 302 | set_deadline_alarm(call, send_deadline); |
| 303 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 304 | return call; |
| 305 | } |
| 306 | |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 307 | void grpc_call_set_completion_queue(grpc_call *call, |
| 308 | grpc_completion_queue *cq) { |
| 309 | call->cq = cq; |
| 310 | } |
| 311 | |
Craig Tiller | 24be0f7 | 2015-02-10 14:04:22 -0800 | [diff] [blame] | 312 | grpc_completion_queue *grpc_call_get_completion_queue(grpc_call *call) { |
| 313 | return call->cq; |
| 314 | } |
| 315 | |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 316 | #ifdef GRPC_CALL_REF_COUNT_DEBUG |
| 317 | void grpc_call_internal_ref(grpc_call *c, const char *reason) { |
| 318 | gpr_log(GPR_DEBUG, "CALL: ref %p %d -> %d [%s]", c, |
| 319 | c->internal_refcount.count, c->internal_refcount.count + 1, reason); |
| 320 | #else |
| 321 | void grpc_call_internal_ref(grpc_call *c) { |
| 322 | #endif |
| 323 | gpr_ref(&c->internal_refcount); |
| 324 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 325 | |
Craig Tiller | aef25da | 2015-01-29 17:19:45 -0800 | [diff] [blame] | 326 | static void destroy_call(void *call, int ignored_success) { |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 327 | size_t i; |
Craig Tiller | aef25da | 2015-01-29 17:19:45 -0800 | [diff] [blame] | 328 | grpc_call *c = call; |
Craig Tiller | a454110 | 2015-01-29 11:46:11 -0800 | [diff] [blame] | 329 | grpc_call_stack_destroy(CALL_STACK_FROM_CALL(c)); |
| 330 | grpc_channel_internal_unref(c->channel); |
| 331 | gpr_mu_destroy(&c->mu); |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 332 | for (i = 0; i < STATUS_SOURCE_COUNT; i++) { |
| 333 | if (c->status[i].details) { |
| 334 | grpc_mdstr_unref(c->status[i].details); |
| 335 | } |
Craig Tiller | a454110 | 2015-01-29 11:46:11 -0800 | [diff] [blame] | 336 | } |
Craig Tiller | 3a4749f | 2015-01-30 07:51:45 -0800 | [diff] [blame] | 337 | for (i = 0; i < c->owned_metadata_count; i++) { |
| 338 | grpc_mdelem_unref(c->owned_metadata[i]); |
| 339 | } |
| 340 | gpr_free(c->owned_metadata); |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 341 | for (i = 0; i < GPR_ARRAY_SIZE(c->buffered_metadata); i++) { |
| 342 | gpr_free(c->buffered_metadata[i].metadata); |
| 343 | } |
Craig Tiller | eb40a53 | 2015-04-17 16:46:20 -0700 | [diff] [blame] | 344 | for (i = 0; i < c->send_initial_metadata_count; i++) { |
| 345 | grpc_mdelem_unref(c->send_initial_metadata[i].md); |
| 346 | } |
Craig Tiller | 935cf42 | 2015-05-01 14:10:46 -0700 | [diff] [blame] | 347 | for (i = 0; i < GRPC_CONTEXT_COUNT; i++) { |
| 348 | if (c->destroy_context[i]) { |
| 349 | c->destroy_context[i](c->context[i]); |
| 350 | } |
| 351 | } |
Craig Tiller | b56ca8d | 2015-04-24 17:16:22 -0700 | [diff] [blame] | 352 | grpc_sopb_destroy(&c->send_ops); |
| 353 | grpc_sopb_destroy(&c->recv_ops); |
Craig Tiller | 37bbead | 2015-02-05 08:43:49 -0800 | [diff] [blame] | 354 | grpc_bbq_destroy(&c->incoming_queue); |
Craig Tiller | fa4f994 | 2015-04-23 15:22:09 -0700 | [diff] [blame] | 355 | gpr_slice_buffer_destroy(&c->incoming_message); |
Craig Tiller | a454110 | 2015-01-29 11:46:11 -0800 | [diff] [blame] | 356 | gpr_free(c); |
| 357 | } |
| 358 | |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 359 | #ifdef GRPC_CALL_REF_COUNT_DEBUG |
| 360 | void grpc_call_internal_unref(grpc_call *c, const char *reason, |
| 361 | int allow_immediate_deletion) { |
| 362 | gpr_log(GPR_DEBUG, "CALL: unref %p %d -> %d [%s]", c, |
| 363 | c->internal_refcount.count, c->internal_refcount.count - 1, reason); |
| 364 | #else |
Craig Tiller | 64bc3fd | 2015-04-24 17:07:12 -0700 | [diff] [blame] | 365 | void grpc_call_internal_unref(grpc_call *c, int allow_immediate_deletion) { |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 366 | #endif |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 367 | if (gpr_unref(&c->internal_refcount)) { |
Craig Tiller | aef25da | 2015-01-29 17:19:45 -0800 | [diff] [blame] | 368 | if (allow_immediate_deletion) { |
| 369 | destroy_call(c, 1); |
| 370 | } else { |
| 371 | grpc_iomgr_add_callback(destroy_call, c); |
| 372 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 373 | } |
| 374 | } |
| 375 | |
Craig Tiller | 928fbc8 | 2015-01-29 15:06:42 -0800 | [diff] [blame] | 376 | static void set_status_code(grpc_call *call, status_source source, |
| 377 | gpr_uint32 status) { |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 378 | call->status[source].is_set = 1; |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 379 | call->status[source].code = status; |
Craig Tiller | 3054756 | 2015-02-05 17:04:51 -0800 | [diff] [blame] | 380 | |
Craig Tiller | d1abc81 | 2015-05-06 14:35:19 -0700 | [diff] [blame^] | 381 | if (status != GRPC_STATUS_OK && !grpc_bbq_empty(&call->incoming_queue)) { |
Craig Tiller | 3054756 | 2015-02-05 17:04:51 -0800 | [diff] [blame] | 382 | grpc_bbq_flush(&call->incoming_queue); |
| 383 | } |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 384 | } |
| 385 | |
Craig Tiller | 928fbc8 | 2015-01-29 15:06:42 -0800 | [diff] [blame] | 386 | static void set_status_details(grpc_call *call, status_source source, |
| 387 | grpc_mdstr *status) { |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 388 | if (call->status[source].details != NULL) { |
| 389 | grpc_mdstr_unref(call->status[source].details); |
| 390 | } |
| 391 | call->status[source].details = status; |
| 392 | } |
| 393 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 394 | static int is_op_live(grpc_call *call, grpc_ioreq_op op) { |
| 395 | gpr_uint8 set = call->request_set[op]; |
| 396 | reqinfo_master *master; |
| 397 | if (set >= GRPC_IOREQ_OP_COUNT) return 0; |
| 398 | master = &call->masters[set]; |
Craig Tiller | d642dcf | 2015-02-03 20:39:09 -0800 | [diff] [blame] | 399 | return (master->complete_mask & (1u << op)) == 0; |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 400 | } |
| 401 | |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 402 | static void lock(grpc_call *call) { gpr_mu_lock(&call->mu); } |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 403 | |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 404 | static int need_more_data(grpc_call *call) { |
| 405 | return is_op_live(call, GRPC_IOREQ_RECV_INITIAL_METADATA) || |
Craig Tiller | 10b9cb5 | 2015-04-28 10:00:15 -0700 | [diff] [blame] | 406 | (is_op_live(call, GRPC_IOREQ_RECV_MESSAGE) && grpc_bbq_empty(&call->incoming_queue)) || |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 407 | is_op_live(call, GRPC_IOREQ_RECV_TRAILING_METADATA) || |
| 408 | is_op_live(call, GRPC_IOREQ_RECV_STATUS) || |
| 409 | is_op_live(call, GRPC_IOREQ_RECV_STATUS_DETAILS) || |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 410 | (is_op_live(call, GRPC_IOREQ_RECV_CLOSE) && |
| 411 | grpc_bbq_empty(&call->incoming_queue)) || |
| 412 | (call->write_state == WRITE_STATE_INITIAL && !call->is_client && |
Craig Tiller | 10b9cb5 | 2015-04-28 10:00:15 -0700 | [diff] [blame] | 413 | call->read_state < READ_STATE_GOT_INITIAL_METADATA); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 414 | } |
| 415 | |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 416 | static void unlock(grpc_call *call) { |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 417 | grpc_transport_op op; |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 418 | completed_request completed_requests[GRPC_IOREQ_OP_COUNT]; |
Craig Tiller | 991ca9f | 2015-03-03 09:59:22 -0800 | [diff] [blame] | 419 | int completing_requests = 0; |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 420 | int start_op = 0; |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 421 | int i; |
| 422 | |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 423 | memset(&op, 0, sizeof(op)); |
| 424 | |
Craig Tiller | 1a727fd | 2015-04-24 13:21:22 -0700 | [diff] [blame] | 425 | if (!call->receiving && need_more_data(call)) { |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 426 | op.recv_ops = &call->recv_ops; |
| 427 | op.recv_state = &call->recv_state; |
| 428 | op.on_done_recv = call_on_done_recv; |
| 429 | op.recv_user_data = call; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 430 | call->receiving = 1; |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 431 | GRPC_CALL_INTERNAL_REF(call, "receiving"); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 432 | start_op = 1; |
| 433 | } |
| 434 | |
| 435 | if (!call->sending) { |
| 436 | if (fill_send_ops(call, &op)) { |
| 437 | call->sending = 1; |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 438 | GRPC_CALL_INTERNAL_REF(call, "sending"); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 439 | start_op = 1; |
| 440 | } |
Craig Tiller | cffbcb7 | 2015-01-29 23:16:33 -0800 | [diff] [blame] | 441 | } |
Craig Tiller | 2e10357 | 2015-01-29 14:12:07 -0800 | [diff] [blame] | 442 | |
Craig Tiller | 991ca9f | 2015-03-03 09:59:22 -0800 | [diff] [blame] | 443 | if (!call->completing && call->num_completed_requests != 0) { |
| 444 | completing_requests = call->num_completed_requests; |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 445 | memcpy(completed_requests, call->completed_requests, |
| 446 | sizeof(completed_requests)); |
| 447 | call->num_completed_requests = 0; |
Craig Tiller | 991ca9f | 2015-03-03 09:59:22 -0800 | [diff] [blame] | 448 | call->completing = 1; |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 449 | GRPC_CALL_INTERNAL_REF(call, "completing"); |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 450 | } |
| 451 | |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 452 | gpr_mu_unlock(&call->mu); |
| 453 | |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 454 | if (start_op) { |
| 455 | execute_op(call, &op); |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 456 | } |
| 457 | |
Craig Tiller | 991ca9f | 2015-03-03 09:59:22 -0800 | [diff] [blame] | 458 | if (completing_requests > 0) { |
| 459 | for (i = 0; i < completing_requests; i++) { |
| 460 | completed_requests[i].on_complete(call, completed_requests[i].status, |
| 461 | completed_requests[i].user_data); |
| 462 | } |
| 463 | lock(call); |
| 464 | call->completing = 0; |
| 465 | unlock(call); |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 466 | GRPC_CALL_INTERNAL_UNREF(call, "completing", 0); |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 467 | } |
| 468 | } |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 469 | |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 470 | static void get_final_status(grpc_call *call, grpc_ioreq_data out) { |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 471 | int i; |
| 472 | for (i = 0; i < STATUS_SOURCE_COUNT; i++) { |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 473 | if (call->status[i].is_set) { |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 474 | out.recv_status.set_value(call->status[i].code, |
| 475 | out.recv_status.user_data); |
| 476 | return; |
| 477 | } |
| 478 | } |
Craig Tiller | de34316 | 2015-02-09 23:37:22 -0800 | [diff] [blame] | 479 | if (call->is_client) { |
| 480 | out.recv_status.set_value(GRPC_STATUS_UNKNOWN, out.recv_status.user_data); |
| 481 | } else { |
| 482 | out.recv_status.set_value(GRPC_STATUS_OK, out.recv_status.user_data); |
| 483 | } |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | static void get_final_details(grpc_call *call, grpc_ioreq_data out) { |
| 487 | int i; |
| 488 | for (i = 0; i < STATUS_SOURCE_COUNT; i++) { |
| 489 | if (call->status[i].is_set) { |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 490 | if (call->status[i].details) { |
| 491 | gpr_slice details = call->status[i].details->slice; |
| 492 | size_t len = GPR_SLICE_LENGTH(details); |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 493 | if (len + 1 > *out.recv_status_details.details_capacity) { |
| 494 | *out.recv_status_details.details_capacity = GPR_MAX( |
| 495 | len + 1, *out.recv_status_details.details_capacity * 3 / 2); |
| 496 | *out.recv_status_details.details = |
| 497 | gpr_realloc(*out.recv_status_details.details, |
| 498 | *out.recv_status_details.details_capacity); |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 499 | } |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 500 | memcpy(*out.recv_status_details.details, GPR_SLICE_START_PTR(details), |
| 501 | len); |
| 502 | (*out.recv_status_details.details)[len] = 0; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 503 | } else { |
| 504 | goto no_details; |
| 505 | } |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 506 | return; |
| 507 | } |
| 508 | } |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 509 | |
| 510 | no_details: |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 511 | if (0 == *out.recv_status_details.details_capacity) { |
| 512 | *out.recv_status_details.details_capacity = 8; |
| 513 | *out.recv_status_details.details = |
| 514 | gpr_malloc(*out.recv_status_details.details_capacity); |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 515 | } |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 516 | **out.recv_status_details.details = 0; |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 517 | } |
| 518 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 519 | static void finish_live_ioreq_op(grpc_call *call, grpc_ioreq_op op, |
| 520 | grpc_op_error status) { |
| 521 | completed_request *cr; |
| 522 | gpr_uint8 master_set = call->request_set[op]; |
| 523 | reqinfo_master *master; |
| 524 | size_t i; |
| 525 | /* ioreq is live: we need to do something */ |
| 526 | master = &call->masters[master_set]; |
Craig Tiller | d642dcf | 2015-02-03 20:39:09 -0800 | [diff] [blame] | 527 | master->complete_mask |= 1u << op; |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 528 | if (status != GRPC_OP_OK) { |
| 529 | master->status = status; |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 530 | } |
| 531 | if (master->complete_mask == master->need_mask) { |
| 532 | for (i = 0; i < GRPC_IOREQ_OP_COUNT; i++) { |
| 533 | if (call->request_set[i] != master_set) { |
| 534 | continue; |
| 535 | } |
| 536 | call->request_set[i] = REQSET_DONE; |
| 537 | switch ((grpc_ioreq_op)i) { |
| 538 | case GRPC_IOREQ_RECV_MESSAGE: |
| 539 | case GRPC_IOREQ_SEND_MESSAGE: |
| 540 | if (master->status == GRPC_OP_OK) { |
| 541 | call->request_set[i] = REQSET_EMPTY; |
| 542 | } else { |
| 543 | call->write_state = WRITE_STATE_WRITE_CLOSED; |
| 544 | } |
| 545 | break; |
| 546 | case GRPC_IOREQ_RECV_CLOSE: |
| 547 | case GRPC_IOREQ_SEND_INITIAL_METADATA: |
| 548 | case GRPC_IOREQ_SEND_TRAILING_METADATA: |
| 549 | case GRPC_IOREQ_SEND_STATUS: |
| 550 | case GRPC_IOREQ_SEND_CLOSE: |
| 551 | break; |
| 552 | case GRPC_IOREQ_RECV_STATUS: |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 553 | get_final_status(call, call->request_data[GRPC_IOREQ_RECV_STATUS]); |
| 554 | break; |
| 555 | case GRPC_IOREQ_RECV_STATUS_DETAILS: |
| 556 | get_final_details(call, |
| 557 | call->request_data[GRPC_IOREQ_RECV_STATUS_DETAILS]); |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 558 | break; |
| 559 | case GRPC_IOREQ_RECV_INITIAL_METADATA: |
Craig Tiller | bae41c8 | 2015-04-28 13:22:25 -0700 | [diff] [blame] | 560 | GPR_SWAP(grpc_metadata_array, call->buffered_metadata[0], |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 561 | *call->request_data[GRPC_IOREQ_RECV_INITIAL_METADATA] |
| 562 | .recv_metadata); |
| 563 | break; |
| 564 | case GRPC_IOREQ_RECV_TRAILING_METADATA: |
Craig Tiller | bae41c8 | 2015-04-28 13:22:25 -0700 | [diff] [blame] | 565 | GPR_SWAP(grpc_metadata_array, call->buffered_metadata[1], |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 566 | *call->request_data[GRPC_IOREQ_RECV_TRAILING_METADATA] |
| 567 | .recv_metadata); |
| 568 | break; |
| 569 | case GRPC_IOREQ_OP_COUNT: |
| 570 | abort(); |
| 571 | break; |
| 572 | } |
| 573 | } |
| 574 | cr = &call->completed_requests[call->num_completed_requests++]; |
| 575 | cr->status = master->status; |
| 576 | cr->on_complete = master->on_complete; |
| 577 | cr->user_data = master->user_data; |
| 578 | } |
| 579 | } |
| 580 | |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 581 | static void finish_ioreq_op(grpc_call *call, grpc_ioreq_op op, |
| 582 | grpc_op_error status) { |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 583 | if (is_op_live(call, op)) { |
| 584 | finish_live_ioreq_op(call, op, status); |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 585 | } |
| 586 | } |
| 587 | |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 588 | static void call_on_done_send(void *pc, int success) { |
| 589 | grpc_call *call = pc; |
| 590 | grpc_op_error error = success ? GRPC_OP_OK : GRPC_OP_ERROR; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 591 | lock(call); |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 592 | if (call->last_send_contains & (1 << GRPC_IOREQ_SEND_INITIAL_METADATA)) { |
| 593 | finish_ioreq_op(call, GRPC_IOREQ_SEND_INITIAL_METADATA, error); |
| 594 | } |
| 595 | if (call->last_send_contains & (1 << GRPC_IOREQ_SEND_MESSAGE)) { |
| 596 | finish_ioreq_op(call, GRPC_IOREQ_SEND_MESSAGE, error); |
| 597 | } |
| 598 | if (call->last_send_contains & (1 << GRPC_IOREQ_SEND_CLOSE)) { |
Craig Tiller | 6e84aba | 2015-04-23 15:08:17 -0700 | [diff] [blame] | 599 | finish_ioreq_op(call, GRPC_IOREQ_SEND_TRAILING_METADATA, error); |
| 600 | finish_ioreq_op(call, GRPC_IOREQ_SEND_STATUS, error); |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 601 | finish_ioreq_op(call, GRPC_IOREQ_SEND_CLOSE, GRPC_OP_OK); |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 602 | } |
Craig Tiller | 3928c7a | 2015-04-23 16:00:47 -0700 | [diff] [blame] | 603 | call->last_send_contains = 0; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 604 | call->sending = 0; |
| 605 | unlock(call); |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 606 | GRPC_CALL_INTERNAL_UNREF(call, "sending", 0); |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 607 | } |
| 608 | |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 609 | static void finish_message(grpc_call *call) { |
| 610 | /* TODO(ctiller): this could be a lot faster if coded directly */ |
| 611 | grpc_byte_buffer *byte_buffer = grpc_byte_buffer_create( |
| 612 | call->incoming_message.slices, call->incoming_message.count); |
| 613 | gpr_slice_buffer_reset_and_unref(&call->incoming_message); |
| 614 | |
| 615 | grpc_bbq_push(&call->incoming_queue, byte_buffer); |
| 616 | |
| 617 | GPR_ASSERT(call->incoming_message.count == 0); |
| 618 | call->reading_message = 0; |
| 619 | } |
| 620 | |
| 621 | static int begin_message(grpc_call *call, grpc_begin_message msg) { |
| 622 | /* can't begin a message when we're still reading a message */ |
| 623 | if (call->reading_message) { |
| 624 | char *message = NULL; |
| 625 | gpr_asprintf( |
| 626 | &message, "Message terminated early; read %d bytes, expected %d", |
| 627 | (int)call->incoming_message.length, (int)call->incoming_message_length); |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 628 | cancel_with_status(call, GRPC_STATUS_INVALID_ARGUMENT, message, 1); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 629 | gpr_free(message); |
| 630 | return 0; |
| 631 | } |
| 632 | /* stash away parameters, and prepare for incoming slices */ |
| 633 | if (msg.length > grpc_channel_get_max_message_length(call->channel)) { |
| 634 | char *message = NULL; |
| 635 | gpr_asprintf( |
| 636 | &message, |
| 637 | "Maximum message length of %d exceeded by a message of length %d", |
| 638 | grpc_channel_get_max_message_length(call->channel), msg.length); |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 639 | cancel_with_status(call, GRPC_STATUS_INVALID_ARGUMENT, message, 1); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 640 | gpr_free(message); |
| 641 | return 0; |
| 642 | } else if (msg.length > 0) { |
| 643 | call->reading_message = 1; |
| 644 | call->incoming_message_length = msg.length; |
| 645 | return 1; |
| 646 | } else { |
| 647 | finish_message(call); |
| 648 | return 1; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | static int add_slice_to_message(grpc_call *call, gpr_slice slice) { |
| 653 | if (GPR_SLICE_LENGTH(slice) == 0) { |
| 654 | gpr_slice_unref(slice); |
| 655 | return 1; |
| 656 | } |
| 657 | /* we have to be reading a message to know what to do here */ |
| 658 | if (!call->reading_message) { |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 659 | cancel_with_status( |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 660 | call, GRPC_STATUS_INVALID_ARGUMENT, |
Yang Gao | ff30f8e | 2015-05-04 00:13:39 -0700 | [diff] [blame] | 661 | "Received payload data while not reading a message", 1); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 662 | return 0; |
| 663 | } |
| 664 | /* append the slice to the incoming buffer */ |
| 665 | gpr_slice_buffer_add(&call->incoming_message, slice); |
| 666 | if (call->incoming_message.length > call->incoming_message_length) { |
| 667 | /* if we got too many bytes, complain */ |
| 668 | char *message = NULL; |
| 669 | gpr_asprintf( |
| 670 | &message, "Receiving message overflow; read %d bytes, expected %d", |
| 671 | (int)call->incoming_message.length, (int)call->incoming_message_length); |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 672 | cancel_with_status(call, GRPC_STATUS_INVALID_ARGUMENT, message, 1); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 673 | gpr_free(message); |
| 674 | return 0; |
| 675 | } else if (call->incoming_message.length == call->incoming_message_length) { |
| 676 | finish_message(call); |
| 677 | return 1; |
| 678 | } else { |
| 679 | return 1; |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | static void call_on_done_recv(void *pc, int success) { |
| 684 | grpc_call *call = pc; |
| 685 | size_t i; |
David Garcia Quintas | f667f1b | 2015-05-04 13:15:46 -0700 | [diff] [blame] | 686 | GRPC_TIMER_BEGIN(GRPC_PTAG_CALL_ON_DONE_RECV, 0); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 687 | lock(call); |
Craig Tiller | 6e84aba | 2015-04-23 15:08:17 -0700 | [diff] [blame] | 688 | call->receiving = 0; |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 689 | if (success) { |
| 690 | for (i = 0; success && i < call->recv_ops.nops; i++) { |
| 691 | grpc_stream_op *op = &call->recv_ops.ops[i]; |
| 692 | switch (op->type) { |
| 693 | case GRPC_NO_OP: |
| 694 | break; |
| 695 | case GRPC_OP_METADATA: |
| 696 | recv_metadata(call, &op->data.metadata); |
| 697 | break; |
| 698 | case GRPC_OP_BEGIN_MESSAGE: |
| 699 | success = begin_message(call, op->data.begin_message); |
| 700 | break; |
| 701 | case GRPC_OP_SLICE: |
| 702 | success = add_slice_to_message(call, op->data.slice); |
| 703 | break; |
| 704 | } |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 705 | } |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 706 | if (call->recv_state == GRPC_STREAM_RECV_CLOSED) { |
| 707 | GPR_ASSERT(call->read_state <= READ_STATE_READ_CLOSED); |
| 708 | call->read_state = READ_STATE_READ_CLOSED; |
| 709 | } |
| 710 | if (call->recv_state == GRPC_STREAM_CLOSED) { |
| 711 | GPR_ASSERT(call->read_state <= READ_STATE_STREAM_CLOSED); |
| 712 | call->read_state = READ_STATE_STREAM_CLOSED; |
Craig Tiller | 67bfefd | 2015-04-30 09:32:37 -0700 | [diff] [blame] | 713 | if (call->have_alarm) { |
| 714 | grpc_alarm_cancel(&call->alarm); |
| 715 | call->have_alarm = 0; |
| 716 | } |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 717 | } |
| 718 | finish_read_ops(call); |
| 719 | } else { |
| 720 | finish_ioreq_op(call, GRPC_IOREQ_RECV_MESSAGE, GRPC_OP_ERROR); |
| 721 | finish_ioreq_op(call, GRPC_IOREQ_RECV_STATUS, GRPC_OP_ERROR); |
| 722 | finish_ioreq_op(call, GRPC_IOREQ_RECV_CLOSE, GRPC_OP_ERROR); |
| 723 | finish_ioreq_op(call, GRPC_IOREQ_RECV_TRAILING_METADATA, GRPC_OP_ERROR); |
| 724 | finish_ioreq_op(call, GRPC_IOREQ_RECV_INITIAL_METADATA, GRPC_OP_ERROR); |
| 725 | finish_ioreq_op(call, GRPC_IOREQ_RECV_STATUS_DETAILS, GRPC_OP_ERROR); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 726 | } |
Craig Tiller | c1f7560 | 2015-04-24 11:44:53 -0700 | [diff] [blame] | 727 | call->recv_ops.nops = 0; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 728 | unlock(call); |
| 729 | |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 730 | GRPC_CALL_INTERNAL_UNREF(call, "receiving", 0); |
David Garcia Quintas | f667f1b | 2015-05-04 13:15:46 -0700 | [diff] [blame] | 731 | GRPC_TIMER_BEGIN(GRPC_PTAG_CALL_ON_DONE_RECV, 0); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 732 | } |
| 733 | |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 734 | static grpc_mdelem_list chain_metadata_from_app(grpc_call *call, size_t count, |
| 735 | grpc_metadata *metadata) { |
| 736 | size_t i; |
| 737 | grpc_mdelem_list out; |
| 738 | if (count == 0) { |
| 739 | out.head = out.tail = NULL; |
| 740 | return out; |
| 741 | } |
| 742 | for (i = 0; i < count; i++) { |
| 743 | grpc_metadata *md = &metadata[i]; |
| 744 | grpc_metadata *next_md = (i == count - 1) ? NULL : &metadata[i + 1]; |
| 745 | grpc_metadata *prev_md = (i == 0) ? NULL : &metadata[i - 1]; |
| 746 | grpc_linked_mdelem *l = (grpc_linked_mdelem *)&md->internal_data; |
Craig Tiller | d2b11fa | 2015-04-21 13:45:19 -0700 | [diff] [blame] | 747 | GPR_ASSERT(sizeof(grpc_linked_mdelem) == sizeof(md->internal_data)); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 748 | l->md = grpc_mdelem_from_string_and_buffer(call->metadata_context, md->key, |
| 749 | (const gpr_uint8 *)md->value, |
| 750 | md->value_length); |
| 751 | l->next = next_md ? (grpc_linked_mdelem *)&next_md->internal_data : NULL; |
| 752 | l->prev = prev_md ? (grpc_linked_mdelem *)&prev_md->internal_data : NULL; |
| 753 | } |
| 754 | out.head = (grpc_linked_mdelem *)&(metadata[0].internal_data); |
| 755 | out.tail = (grpc_linked_mdelem *)&(metadata[count - 1].internal_data); |
| 756 | return out; |
| 757 | } |
| 758 | |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 759 | /* Copy the contents of a byte buffer into stream ops */ |
| 760 | static void copy_byte_buffer_to_stream_ops(grpc_byte_buffer *byte_buffer, |
| 761 | grpc_stream_op_buffer *sopb) { |
| 762 | size_t i; |
| 763 | |
| 764 | switch (byte_buffer->type) { |
| 765 | case GRPC_BB_SLICE_BUFFER: |
| 766 | for (i = 0; i < byte_buffer->data.slice_buffer.count; i++) { |
| 767 | gpr_slice slice = byte_buffer->data.slice_buffer.slices[i]; |
| 768 | gpr_slice_ref(slice); |
| 769 | grpc_sopb_add_slice(sopb, slice); |
| 770 | } |
| 771 | break; |
| 772 | } |
| 773 | } |
| 774 | |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 775 | static int fill_send_ops(grpc_call *call, grpc_transport_op *op) { |
| 776 | grpc_ioreq_data data; |
| 777 | grpc_metadata_batch mdb; |
| 778 | size_t i; |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 779 | char status_str[GPR_LTOA_MIN_BUFSIZE]; |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 780 | GPR_ASSERT(op->send_ops == NULL); |
| 781 | |
| 782 | switch (call->write_state) { |
| 783 | case WRITE_STATE_INITIAL: |
| 784 | if (!is_op_live(call, GRPC_IOREQ_SEND_INITIAL_METADATA)) { |
| 785 | break; |
| 786 | } |
| 787 | data = call->request_data[GRPC_IOREQ_SEND_INITIAL_METADATA]; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 788 | mdb.list = chain_metadata_from_app(call, data.send_metadata.count, |
| 789 | data.send_metadata.metadata); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 790 | mdb.garbage.head = mdb.garbage.tail = NULL; |
| 791 | mdb.deadline = call->send_deadline; |
| 792 | for (i = 0; i < call->send_initial_metadata_count; i++) { |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 793 | grpc_metadata_batch_link_head(&mdb, &call->send_initial_metadata[i]); |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 794 | } |
| 795 | grpc_sopb_add_metadata(&call->send_ops, mdb); |
| 796 | op->send_ops = &call->send_ops; |
| 797 | op->bind_pollset = grpc_cq_pollset(call->cq); |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 798 | call->last_send_contains |= 1 << GRPC_IOREQ_SEND_INITIAL_METADATA; |
| 799 | call->write_state = WRITE_STATE_STARTED; |
Craig Tiller | c1f7560 | 2015-04-24 11:44:53 -0700 | [diff] [blame] | 800 | call->send_initial_metadata_count = 0; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 801 | /* fall through intended */ |
Craig Tiller | 83f88d9 | 2015-04-21 16:02:05 -0700 | [diff] [blame] | 802 | case WRITE_STATE_STARTED: |
| 803 | if (is_op_live(call, GRPC_IOREQ_SEND_MESSAGE)) { |
| 804 | data = call->request_data[GRPC_IOREQ_SEND_MESSAGE]; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 805 | grpc_sopb_add_begin_message( |
| 806 | &call->send_ops, grpc_byte_buffer_length(data.send_message), 0); |
| 807 | copy_byte_buffer_to_stream_ops(data.send_message, &call->send_ops); |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 808 | op->send_ops = &call->send_ops; |
| 809 | call->last_send_contains |= 1 << GRPC_IOREQ_SEND_MESSAGE; |
| 810 | } |
| 811 | if (is_op_live(call, GRPC_IOREQ_SEND_CLOSE)) { |
| 812 | op->is_last_send = 1; |
| 813 | op->send_ops = &call->send_ops; |
| 814 | call->last_send_contains |= 1 << GRPC_IOREQ_SEND_CLOSE; |
| 815 | call->write_state = WRITE_STATE_WRITE_CLOSED; |
| 816 | if (!call->is_client) { |
| 817 | /* send trailing metadata */ |
| 818 | data = call->request_data[GRPC_IOREQ_SEND_TRAILING_METADATA]; |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 819 | mdb.list = chain_metadata_from_app(call, data.send_metadata.count, |
| 820 | data.send_metadata.metadata); |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 821 | mdb.garbage.head = mdb.garbage.tail = NULL; |
Craig Tiller | d393f10 | 2015-04-23 16:11:51 -0700 | [diff] [blame] | 822 | mdb.deadline = gpr_inf_future; |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 823 | /* send status */ |
| 824 | /* TODO(ctiller): cache common status values */ |
| 825 | data = call->request_data[GRPC_IOREQ_SEND_STATUS]; |
| 826 | gpr_ltoa(data.send_status.code, status_str); |
| 827 | grpc_metadata_batch_add_tail( |
| 828 | &mdb, &call->status_link, |
| 829 | grpc_mdelem_from_metadata_strings( |
| 830 | call->metadata_context, |
| 831 | grpc_mdstr_ref(grpc_channel_get_status_string(call->channel)), |
| 832 | grpc_mdstr_from_string(call->metadata_context, status_str))); |
| 833 | if (data.send_status.details) { |
| 834 | grpc_metadata_batch_add_tail( |
| 835 | &mdb, &call->details_link, |
| 836 | grpc_mdelem_from_metadata_strings( |
| 837 | call->metadata_context, |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 838 | grpc_mdstr_ref( |
| 839 | grpc_channel_get_message_string(call->channel)), |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 840 | grpc_mdstr_from_string(call->metadata_context, |
| 841 | data.send_status.details))); |
| 842 | } |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 843 | grpc_sopb_add_metadata(&call->send_ops, mdb); |
Craig Tiller | de64862 | 2015-02-05 09:32:10 -0800 | [diff] [blame] | 844 | } |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 845 | } |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 846 | break; |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 847 | case WRITE_STATE_WRITE_CLOSED: |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 848 | break; |
Craig Tiller | 62ac155 | 2015-01-27 15:41:44 -0800 | [diff] [blame] | 849 | } |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 850 | if (op->send_ops) { |
| 851 | op->on_done_send = call_on_done_send; |
| 852 | op->send_user_data = call; |
| 853 | } |
| 854 | return op->send_ops != NULL; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | static grpc_call_error start_ioreq_error(grpc_call *call, |
| 858 | gpr_uint32 mutated_ops, |
| 859 | grpc_call_error ret) { |
| 860 | size_t i; |
| 861 | for (i = 0; i < GRPC_IOREQ_OP_COUNT; i++) { |
Craig Tiller | d642dcf | 2015-02-03 20:39:09 -0800 | [diff] [blame] | 862 | if (mutated_ops & (1u << i)) { |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 863 | call->request_set[i] = REQSET_EMPTY; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 864 | } |
| 865 | } |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 866 | return ret; |
| 867 | } |
| 868 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 869 | static void finish_read_ops(grpc_call *call) { |
| 870 | int empty; |
| 871 | |
| 872 | if (is_op_live(call, GRPC_IOREQ_RECV_MESSAGE)) { |
| 873 | empty = |
| 874 | (NULL == (*call->request_data[GRPC_IOREQ_RECV_MESSAGE].recv_message = |
| 875 | grpc_bbq_pop(&call->incoming_queue))); |
| 876 | if (!empty) { |
| 877 | finish_live_ioreq_op(call, GRPC_IOREQ_RECV_MESSAGE, GRPC_OP_OK); |
| 878 | empty = grpc_bbq_empty(&call->incoming_queue); |
| 879 | } |
| 880 | } else { |
| 881 | empty = grpc_bbq_empty(&call->incoming_queue); |
| 882 | } |
| 883 | |
| 884 | switch (call->read_state) { |
| 885 | case READ_STATE_STREAM_CLOSED: |
| 886 | if (empty) { |
| 887 | finish_ioreq_op(call, GRPC_IOREQ_RECV_CLOSE, GRPC_OP_OK); |
| 888 | } |
| 889 | /* fallthrough */ |
| 890 | case READ_STATE_READ_CLOSED: |
| 891 | if (empty) { |
| 892 | finish_ioreq_op(call, GRPC_IOREQ_RECV_MESSAGE, GRPC_OP_OK); |
| 893 | } |
| 894 | finish_ioreq_op(call, GRPC_IOREQ_RECV_STATUS, GRPC_OP_OK); |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 895 | finish_ioreq_op(call, GRPC_IOREQ_RECV_STATUS_DETAILS, GRPC_OP_OK); |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 896 | finish_ioreq_op(call, GRPC_IOREQ_RECV_TRAILING_METADATA, GRPC_OP_OK); |
| 897 | /* fallthrough */ |
| 898 | case READ_STATE_GOT_INITIAL_METADATA: |
| 899 | finish_ioreq_op(call, GRPC_IOREQ_RECV_INITIAL_METADATA, GRPC_OP_OK); |
| 900 | /* fallthrough */ |
| 901 | case READ_STATE_INITIAL: |
| 902 | /* do nothing */ |
| 903 | break; |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | static void early_out_write_ops(grpc_call *call) { |
| 908 | switch (call->write_state) { |
| 909 | case WRITE_STATE_WRITE_CLOSED: |
| 910 | finish_ioreq_op(call, GRPC_IOREQ_SEND_MESSAGE, GRPC_OP_ERROR); |
| 911 | finish_ioreq_op(call, GRPC_IOREQ_SEND_STATUS, GRPC_OP_ERROR); |
| 912 | finish_ioreq_op(call, GRPC_IOREQ_SEND_TRAILING_METADATA, GRPC_OP_ERROR); |
| 913 | finish_ioreq_op(call, GRPC_IOREQ_SEND_CLOSE, GRPC_OP_OK); |
| 914 | /* fallthrough */ |
| 915 | case WRITE_STATE_STARTED: |
| 916 | finish_ioreq_op(call, GRPC_IOREQ_SEND_INITIAL_METADATA, GRPC_OP_ERROR); |
| 917 | /* fallthrough */ |
| 918 | case WRITE_STATE_INITIAL: |
| 919 | /* do nothing */ |
| 920 | break; |
| 921 | } |
| 922 | } |
| 923 | |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 924 | static grpc_call_error start_ioreq(grpc_call *call, const grpc_ioreq *reqs, |
| 925 | size_t nreqs, |
| 926 | grpc_ioreq_completion_func completion, |
Craig Tiller | 9cc6141 | 2015-02-02 14:02:52 -0800 | [diff] [blame] | 927 | void *user_data) { |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 928 | size_t i; |
| 929 | gpr_uint32 have_ops = 0; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 930 | grpc_ioreq_op op; |
Craig Tiller | c18c56e | 2015-02-02 15:59:13 -0800 | [diff] [blame] | 931 | reqinfo_master *master; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 932 | grpc_ioreq_data data; |
Craig Tiller | 1e0d4c4 | 2015-01-30 16:17:29 -0800 | [diff] [blame] | 933 | gpr_uint8 set; |
| 934 | |
| 935 | if (nreqs == 0) { |
| 936 | return GRPC_CALL_OK; |
| 937 | } |
| 938 | |
| 939 | set = reqs[0].op; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 940 | |
| 941 | for (i = 0; i < nreqs; i++) { |
| 942 | op = reqs[i].op; |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 943 | if (call->request_set[op] < GRPC_IOREQ_OP_COUNT) { |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 944 | return start_ioreq_error(call, have_ops, |
| 945 | GRPC_CALL_ERROR_TOO_MANY_OPERATIONS); |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 946 | } else if (call->request_set[op] == REQSET_DONE) { |
Craig Tiller | 1c14190 | 2015-01-31 08:51:54 -0800 | [diff] [blame] | 947 | return start_ioreq_error(call, have_ops, GRPC_CALL_ERROR_ALREADY_INVOKED); |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 948 | } |
Craig Tiller | d642dcf | 2015-02-03 20:39:09 -0800 | [diff] [blame] | 949 | have_ops |= 1u << op; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 950 | data = reqs[i].data; |
| 951 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 952 | call->request_data[op] = data; |
| 953 | call->request_set[op] = set; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 954 | } |
| 955 | |
Craig Tiller | c18c56e | 2015-02-02 15:59:13 -0800 | [diff] [blame] | 956 | master = &call->masters[set]; |
| 957 | master->status = GRPC_OP_OK; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 958 | master->need_mask = have_ops; |
Craig Tiller | 1b40944 | 2015-01-29 14:36:17 -0800 | [diff] [blame] | 959 | master->complete_mask = 0; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 960 | master->on_complete = completion; |
| 961 | master->user_data = user_data; |
| 962 | |
Craig Tiller | c12fee6 | 2015-02-03 11:55:50 -0800 | [diff] [blame] | 963 | finish_read_ops(call); |
| 964 | early_out_write_ops(call); |
| 965 | |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 966 | return GRPC_CALL_OK; |
| 967 | } |
| 968 | |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 969 | grpc_call_error grpc_call_start_ioreq_and_call_back( |
| 970 | grpc_call *call, const grpc_ioreq *reqs, size_t nreqs, |
| 971 | grpc_ioreq_completion_func on_complete, void *user_data) { |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 972 | grpc_call_error err; |
| 973 | lock(call); |
Craig Tiller | 9cc6141 | 2015-02-02 14:02:52 -0800 | [diff] [blame] | 974 | err = start_ioreq(call, reqs, nreqs, on_complete, user_data); |
Craig Tiller | 8eb9d47 | 2015-01-27 17:00:03 -0800 | [diff] [blame] | 975 | unlock(call); |
| 976 | return err; |
Craig Tiller | cce17ac | 2015-01-20 09:29:28 -0800 | [diff] [blame] | 977 | } |
| 978 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 979 | void grpc_call_destroy(grpc_call *c) { |
ctiller | c6d61c4 | 2014-12-15 14:52:08 -0800 | [diff] [blame] | 980 | int cancel; |
Craig Tiller | 9724de8 | 2015-01-28 17:06:29 -0800 | [diff] [blame] | 981 | lock(c); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 982 | if (c->have_alarm) { |
ctiller | 18b49ab | 2014-12-09 14:39:16 -0800 | [diff] [blame] | 983 | grpc_alarm_cancel(&c->alarm); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 984 | c->have_alarm = 0; |
| 985 | } |
Craig Tiller | daceea8 | 2015-02-02 16:15:53 -0800 | [diff] [blame] | 986 | cancel = c->read_state != READ_STATE_STREAM_CLOSED; |
Craig Tiller | 9724de8 | 2015-01-28 17:06:29 -0800 | [diff] [blame] | 987 | unlock(c); |
ctiller | c6d61c4 | 2014-12-15 14:52:08 -0800 | [diff] [blame] | 988 | if (cancel) grpc_call_cancel(c); |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 989 | GRPC_CALL_INTERNAL_UNREF(c, "destroy", 1); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 990 | } |
| 991 | |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 992 | grpc_call_error grpc_call_cancel(grpc_call *call) { |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 993 | return grpc_call_cancel_with_status(call, GRPC_STATUS_CANCELLED, "Cancelled"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 994 | } |
| 995 | |
Craig Tiller | 6046dc3 | 2015-01-14 12:55:45 -0800 | [diff] [blame] | 996 | grpc_call_error grpc_call_cancel_with_status(grpc_call *c, |
| 997 | grpc_status_code status, |
| 998 | const char *description) { |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 999 | return cancel_with_status(c, status, description, 0); |
Yang Gao | ff30f8e | 2015-05-04 00:13:39 -0700 | [diff] [blame] | 1000 | } |
| 1001 | |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 1002 | static grpc_call_error cancel_with_status( |
Yang Gao | c71a9d2 | 2015-05-04 00:22:12 -0700 | [diff] [blame] | 1003 | grpc_call *c, grpc_status_code status, const char *description, |
| 1004 | gpr_uint8 locked) { |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 1005 | grpc_transport_op op; |
Craig Tiller | 6046dc3 | 2015-01-14 12:55:45 -0800 | [diff] [blame] | 1006 | grpc_mdstr *details = |
| 1007 | description ? grpc_mdstr_from_string(c->metadata_context, description) |
| 1008 | : NULL; |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 1009 | memset(&op, 0, sizeof(op)); |
| 1010 | op.cancel_with_status = status; |
| 1011 | |
Yang Gao | ff30f8e | 2015-05-04 00:13:39 -0700 | [diff] [blame] | 1012 | if (locked == 0) { |
| 1013 | lock(c); |
| 1014 | } |
Craig Tiller | 6875272 | 2015-01-29 14:59:54 -0800 | [diff] [blame] | 1015 | set_status_code(c, STATUS_FROM_API_OVERRIDE, status); |
| 1016 | set_status_details(c, STATUS_FROM_API_OVERRIDE, details); |
Yang Gao | ff30f8e | 2015-05-04 00:13:39 -0700 | [diff] [blame] | 1017 | if (locked == 0) { |
| 1018 | unlock(c); |
| 1019 | } |
Craig Tiller | 48b9fde | 2015-04-24 08:04:59 -0700 | [diff] [blame] | 1020 | |
| 1021 | execute_op(c, &op); |
| 1022 | |
| 1023 | return GRPC_CALL_OK; |
Craig Tiller | d248c24 | 2015-01-14 11:49:12 -0800 | [diff] [blame] | 1024 | } |
| 1025 | |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 1026 | static void execute_op(grpc_call *call, grpc_transport_op *op) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1027 | grpc_call_element *elem; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1028 | elem = CALL_ELEM_FROM_CALL(call, 0); |
Craig Tiller | 935cf42 | 2015-05-01 14:10:46 -0700 | [diff] [blame] | 1029 | op->context = call->context; |
Craig Tiller | 58ce3f0 | 2015-04-22 07:54:24 -0700 | [diff] [blame] | 1030 | elem->filter->start_transport_op(elem, op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1031 | } |
| 1032 | |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1033 | grpc_call *grpc_call_from_top_element(grpc_call_element *elem) { |
| 1034 | return CALL_FROM_TOP_ELEM(elem); |
| 1035 | } |
| 1036 | |
| 1037 | static void call_alarm(void *arg, int success) { |
| 1038 | grpc_call *call = arg; |
| 1039 | if (success) { |
| 1040 | if (call->is_client) { |
Yang Gao | 172791a | 2015-05-04 16:33:53 -0700 | [diff] [blame] | 1041 | cancel_with_status(call, GRPC_STATUS_DEADLINE_EXCEEDED, |
| 1042 | "Deadline Exceeded", 0); |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1043 | } else { |
| 1044 | grpc_call_cancel(call); |
| 1045 | } |
| 1046 | } |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 1047 | GRPC_CALL_INTERNAL_UNREF(call, "alarm", 1); |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1048 | } |
| 1049 | |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1050 | static void set_deadline_alarm(grpc_call *call, gpr_timespec deadline) { |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1051 | if (call->have_alarm) { |
| 1052 | gpr_log(GPR_ERROR, "Attempt to set deadline alarm twice"); |
Craig Tiller | fa4f994 | 2015-04-23 15:22:09 -0700 | [diff] [blame] | 1053 | assert(0); |
Craig Tiller | 7e8489a | 2015-04-23 12:41:16 -0700 | [diff] [blame] | 1054 | return; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1055 | } |
Craig Tiller | 4df412b | 2015-04-28 07:57:54 -0700 | [diff] [blame] | 1056 | GRPC_CALL_INTERNAL_REF(call, "alarm"); |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1057 | call->have_alarm = 1; |
| 1058 | grpc_alarm_init(&call->alarm, deadline, call_alarm, call, gpr_now()); |
| 1059 | } |
| 1060 | |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1061 | /* we offset status by a small amount when storing it into transport metadata |
| 1062 | as metadata cannot store a 0 value (which is used as OK for grpc_status_codes |
| 1063 | */ |
| 1064 | #define STATUS_OFFSET 1 |
| 1065 | static void destroy_status(void *ignored) {} |
| 1066 | |
| 1067 | static gpr_uint32 decode_status(grpc_mdelem *md) { |
| 1068 | gpr_uint32 status; |
| 1069 | void *user_data = grpc_mdelem_get_user_data(md, destroy_status); |
| 1070 | if (user_data) { |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 1071 | status = ((gpr_uint32)(gpr_intptr)user_data) - STATUS_OFFSET; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1072 | } else { |
| 1073 | if (!gpr_parse_bytes_to_uint32(grpc_mdstr_as_c_string(md->value), |
| 1074 | GPR_SLICE_LENGTH(md->value->slice), |
| 1075 | &status)) { |
| 1076 | status = GRPC_STATUS_UNKNOWN; /* could not parse status code */ |
| 1077 | } |
| 1078 | grpc_mdelem_set_user_data(md, destroy_status, |
| 1079 | (void *)(gpr_intptr)(status + STATUS_OFFSET)); |
| 1080 | } |
| 1081 | return status; |
| 1082 | } |
| 1083 | |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 1084 | static void recv_metadata(grpc_call *call, grpc_metadata_batch *md) { |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1085 | grpc_linked_mdelem *l; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1086 | grpc_metadata_array *dest; |
| 1087 | grpc_metadata *mdusr; |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1088 | int is_trailing; |
Craig Tiller | 8b282cb | 2015-04-17 14:57:44 -0700 | [diff] [blame] | 1089 | grpc_mdctx *mdctx = call->metadata_context; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1090 | |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1091 | is_trailing = call->read_state >= READ_STATE_GOT_INITIAL_METADATA; |
Craig Tiller | 48b02ec | 2015-04-21 13:58:36 -0700 | [diff] [blame] | 1092 | for (l = md->list.head; l != NULL; l = l->next) { |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1093 | grpc_mdelem *md = l->md; |
| 1094 | grpc_mdstr *key = md->key; |
| 1095 | if (key == grpc_channel_get_status_string(call->channel)) { |
| 1096 | set_status_code(call, STATUS_FROM_WIRE, decode_status(md)); |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1097 | } else if (key == grpc_channel_get_message_string(call->channel)) { |
| 1098 | set_status_details(call, STATUS_FROM_WIRE, grpc_mdstr_ref(md->value)); |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1099 | } else { |
| 1100 | dest = &call->buffered_metadata[is_trailing]; |
| 1101 | if (dest->count == dest->capacity) { |
| 1102 | dest->capacity = GPR_MAX(dest->capacity + 8, dest->capacity * 2); |
| 1103 | dest->metadata = |
| 1104 | gpr_realloc(dest->metadata, sizeof(grpc_metadata) * dest->capacity); |
| 1105 | } |
| 1106 | mdusr = &dest->metadata[dest->count++]; |
| 1107 | mdusr->key = grpc_mdstr_as_c_string(md->key); |
| 1108 | mdusr->value = grpc_mdstr_as_c_string(md->value); |
| 1109 | mdusr->value_length = GPR_SLICE_LENGTH(md->value->slice); |
| 1110 | if (call->owned_metadata_count == call->owned_metadata_capacity) { |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 1111 | call->owned_metadata_capacity = |
| 1112 | GPR_MAX(call->owned_metadata_capacity + 8, |
| 1113 | call->owned_metadata_capacity * 2); |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1114 | call->owned_metadata = |
| 1115 | gpr_realloc(call->owned_metadata, |
| 1116 | sizeof(grpc_mdelem *) * call->owned_metadata_capacity); |
| 1117 | } |
| 1118 | call->owned_metadata[call->owned_metadata_count++] = md; |
Craig Tiller | 8b282cb | 2015-04-17 14:57:44 -0700 | [diff] [blame] | 1119 | l->md = 0; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1120 | } |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1121 | } |
| 1122 | if (gpr_time_cmp(md->deadline, gpr_inf_future) != 0) { |
| 1123 | set_deadline_alarm(call, md->deadline); |
| 1124 | } |
| 1125 | if (!is_trailing) { |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 1126 | call->read_state = READ_STATE_GOT_INITIAL_METADATA; |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1127 | } |
Craig Tiller | 6902ad2 | 2015-04-16 08:01:49 -0700 | [diff] [blame] | 1128 | |
Craig Tiller | 8b282cb | 2015-04-17 14:57:44 -0700 | [diff] [blame] | 1129 | grpc_mdctx_lock(mdctx); |
| 1130 | for (l = md->list.head; l; l = l->next) { |
| 1131 | if (l->md) grpc_mdctx_locked_mdelem_unref(mdctx, l->md); |
| 1132 | } |
| 1133 | for (l = md->garbage.head; l; l = l->next) { |
| 1134 | grpc_mdctx_locked_mdelem_unref(mdctx, l->md); |
| 1135 | } |
| 1136 | grpc_mdctx_unlock(mdctx); |
Craig Tiller | 629b0ed | 2015-04-22 11:14:26 -0700 | [diff] [blame] | 1137 | } |
Craig Tiller | 8b282cb | 2015-04-17 14:57:44 -0700 | [diff] [blame] | 1138 | |
Craig Tiller | 566316f | 2015-02-02 15:25:32 -0800 | [diff] [blame] | 1139 | grpc_call_stack *grpc_call_get_call_stack(grpc_call *call) { |
| 1140 | return CALL_STACK_FROM_CALL(call); |
| 1141 | } |
| 1142 | |
| 1143 | /* |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 1144 | * BATCH API IMPLEMENTATION |
| 1145 | */ |
| 1146 | |
| 1147 | static void set_status_value_directly(grpc_status_code status, void *dest) { |
| 1148 | *(grpc_status_code *)dest = status; |
| 1149 | } |
| 1150 | |
| 1151 | static void set_cancelled_value(grpc_status_code status, void *dest) { |
| 1152 | *(grpc_status_code *)dest = (status != GRPC_STATUS_OK); |
| 1153 | } |
| 1154 | |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 1155 | static void finish_batch(grpc_call *call, grpc_op_error result, void *tag) { |
Craig Tiller | 900e451 | 2015-04-29 14:17:10 -0700 | [diff] [blame] | 1156 | grpc_cq_end_op(call->cq, tag, call, do_nothing, NULL, GRPC_OP_OK); |
Craig Tiller | 166e250 | 2015-02-03 20:14:41 -0800 | [diff] [blame] | 1157 | } |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 1158 | |
| 1159 | grpc_call_error grpc_call_start_batch(grpc_call *call, const grpc_op *ops, |
| 1160 | size_t nops, void *tag) { |
| 1161 | grpc_ioreq reqs[GRPC_IOREQ_OP_COUNT]; |
| 1162 | size_t in; |
| 1163 | size_t out; |
| 1164 | const grpc_op *op; |
| 1165 | grpc_ioreq *req; |
| 1166 | |
murgatroid99 | d47946b | 2015-03-09 14:27:07 -0700 | [diff] [blame] | 1167 | GRPC_CALL_LOG_BATCH(GPR_INFO, call, ops, nops, tag); |
| 1168 | |
murgatroid99 | a8c21e8 | 2015-02-12 13:55:53 -0800 | [diff] [blame] | 1169 | if (nops == 0) { |
| 1170 | grpc_cq_begin_op(call->cq, call, GRPC_OP_COMPLETE); |
Craig Tiller | 900e451 | 2015-04-29 14:17:10 -0700 | [diff] [blame] | 1171 | grpc_cq_end_op(call->cq, tag, call, do_nothing, NULL, GRPC_OP_OK); |
murgatroid99 | a8c21e8 | 2015-02-12 13:55:53 -0800 | [diff] [blame] | 1172 | return GRPC_CALL_OK; |
| 1173 | } |
| 1174 | |
Craig Tiller | fb189f8 | 2015-02-03 12:07:07 -0800 | [diff] [blame] | 1175 | /* rewrite batch ops into ioreq ops */ |
| 1176 | for (in = 0, out = 0; in < nops; in++) { |
| 1177 | op = &ops[in]; |
| 1178 | switch (op->op) { |
| 1179 | case GRPC_OP_SEND_INITIAL_METADATA: |
| 1180 | req = &reqs[out++]; |
| 1181 | req->op = GRPC_IOREQ_SEND_INITIAL_METADATA; |
| 1182 | req->data.send_metadata.count = op->data.send_initial_metadata.count; |
| 1183 | req->data.send_metadata.metadata = |
| 1184 | op->data.send_initial_metadata.metadata; |
| 1185 | break; |
| 1186 | case GRPC_OP_SEND_MESSAGE: |
| 1187 | req = &reqs[out++]; |
| 1188 | req->op = GRPC_IOREQ_SEND_MESSAGE; |
| 1189 | req->data.send_message = op->data.send_message; |
| 1190 | break; |
| 1191 | case GRPC_OP_SEND_CLOSE_FROM_CLIENT: |
| 1192 | if (!call->is_client) { |
| 1193 | return GRPC_CALL_ERROR_NOT_ON_SERVER; |
| 1194 | } |
| 1195 | req = &reqs[out++]; |
| 1196 | req->op = GRPC_IOREQ_SEND_CLOSE; |
| 1197 | break; |
| 1198 | case GRPC_OP_SEND_STATUS_FROM_SERVER: |
| 1199 | if (call->is_client) { |
| 1200 | return GRPC_CALL_ERROR_NOT_ON_CLIENT; |
| 1201 | } |
| 1202 | req = &reqs[out++]; |
| 1203 | req->op = GRPC_IOREQ_SEND_TRAILING_METADATA; |
| 1204 | req->data.send_metadata.count = |
| 1205 | op->data.send_status_from_server.trailing_metadata_count; |
| 1206 | req->data.send_metadata.metadata = |
| 1207 | op->data.send_status_from_server.trailing_metadata; |
| 1208 | req = &reqs[out++]; |
| 1209 | req->op = GRPC_IOREQ_SEND_STATUS; |
| 1210 | req->data.send_status.code = op->data.send_status_from_server.status; |
| 1211 | req->data.send_status.details = |
| 1212 | op->data.send_status_from_server.status_details; |
| 1213 | req = &reqs[out++]; |
| 1214 | req->op = GRPC_IOREQ_SEND_CLOSE; |
| 1215 | break; |
| 1216 | case GRPC_OP_RECV_INITIAL_METADATA: |
| 1217 | if (!call->is_client) { |
| 1218 | return GRPC_CALL_ERROR_NOT_ON_SERVER; |
| 1219 | } |
| 1220 | req = &reqs[out++]; |
| 1221 | req->op = GRPC_IOREQ_RECV_INITIAL_METADATA; |
| 1222 | req->data.recv_metadata = op->data.recv_initial_metadata; |
| 1223 | break; |
| 1224 | case GRPC_OP_RECV_MESSAGE: |
| 1225 | req = &reqs[out++]; |
| 1226 | req->op = GRPC_IOREQ_RECV_MESSAGE; |
| 1227 | req->data.recv_message = op->data.recv_message; |
| 1228 | break; |
| 1229 | case GRPC_OP_RECV_STATUS_ON_CLIENT: |
| 1230 | if (!call->is_client) { |
| 1231 | return GRPC_CALL_ERROR_NOT_ON_SERVER; |
| 1232 | } |
| 1233 | req = &reqs[out++]; |
| 1234 | req->op = GRPC_IOREQ_RECV_STATUS; |
| 1235 | req->data.recv_status.set_value = set_status_value_directly; |
| 1236 | req->data.recv_status.user_data = op->data.recv_status_on_client.status; |
| 1237 | req = &reqs[out++]; |
| 1238 | req->op = GRPC_IOREQ_RECV_STATUS_DETAILS; |
| 1239 | req->data.recv_status_details.details = |
| 1240 | op->data.recv_status_on_client.status_details; |
| 1241 | req->data.recv_status_details.details_capacity = |
| 1242 | op->data.recv_status_on_client.status_details_capacity; |
| 1243 | req = &reqs[out++]; |
| 1244 | req->op = GRPC_IOREQ_RECV_TRAILING_METADATA; |
| 1245 | req->data.recv_metadata = |
| 1246 | op->data.recv_status_on_client.trailing_metadata; |
| 1247 | req = &reqs[out++]; |
| 1248 | req->op = GRPC_IOREQ_RECV_CLOSE; |
| 1249 | break; |
| 1250 | case GRPC_OP_RECV_CLOSE_ON_SERVER: |
| 1251 | req = &reqs[out++]; |
| 1252 | req->op = GRPC_IOREQ_RECV_STATUS; |
| 1253 | req->data.recv_status.set_value = set_cancelled_value; |
| 1254 | req->data.recv_status.user_data = |
| 1255 | op->data.recv_close_on_server.cancelled; |
| 1256 | req = &reqs[out++]; |
| 1257 | req->op = GRPC_IOREQ_RECV_CLOSE; |
| 1258 | break; |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | grpc_cq_begin_op(call->cq, call, GRPC_OP_COMPLETE); |
| 1263 | |
| 1264 | return grpc_call_start_ioreq_and_call_back(call, reqs, out, finish_batch, |
| 1265 | tag); |
| 1266 | } |
Craig Tiller | 935cf42 | 2015-05-01 14:10:46 -0700 | [diff] [blame] | 1267 | |
| 1268 | void grpc_call_context_set(grpc_call *call, grpc_context_index elem, void *value, |
| 1269 | void (*destroy)(void *value)) { |
| 1270 | if (call->destroy_context[elem]) { |
| 1271 | call->destroy_context[elem](value); |
| 1272 | } |
| 1273 | call->context[elem] = value; |
| 1274 | call->destroy_context[elem] = destroy; |
| 1275 | } |
| 1276 | |
| 1277 | void *grpc_call_context_get(grpc_call *call, grpc_context_index elem) { |
| 1278 | return call->context[elem]; |
| 1279 | } |