Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2015, Google Inc. |
| 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 | // Copyright 2019 TiKV Project Authors. Licensed under Apache-2.0. |
| 35 | |
| 36 | // Because rust's union implementation is unstable and possibly buggy |
| 37 | // (rust-lang/rust#32836), |
| 38 | // so we need to wrap the type and expose more safer interfaces. |
| 39 | |
| 40 | #include <grpc/byte_buffer_reader.h> |
| 41 | #include <grpc/grpc.h> |
| 42 | #include <grpc/slice.h> |
| 43 | #include <grpc/support/alloc.h> |
| 44 | #include <grpc/support/log.h> |
| 45 | #include <grpc/support/port_platform.h> |
| 46 | #include <grpc/support/string_util.h> |
| 47 | #include <grpc/support/thd_id.h> |
| 48 | |
| 49 | #ifdef GRPC_SYS_SECURE |
| 50 | #include <grpc/grpc_security.h> |
| 51 | #endif |
| 52 | |
| 53 | #include <string.h> |
| 54 | |
| 55 | #ifdef GPR_WINDOWS |
| 56 | #define GPR_EXPORT extern "C" __declspec(dllexport) |
| 57 | #define GPR_CALLTYPE __cdecl |
| 58 | #endif |
| 59 | |
| 60 | #ifndef GPR_EXPORT |
| 61 | #define GPR_EXPORT extern "C" |
| 62 | #endif |
| 63 | |
| 64 | #ifndef GPR_CALLTYPE |
| 65 | #define GPR_CALLTYPE |
| 66 | #endif |
| 67 | |
| 68 | grpc_byte_buffer* string_to_byte_buffer(const char* buffer, size_t len) { |
| 69 | grpc_slice slice = grpc_slice_from_copied_buffer(buffer, len); |
| 70 | grpc_byte_buffer* bb = grpc_raw_byte_buffer_create(&slice, 1); |
| 71 | grpc_slice_unref(slice); |
| 72 | return bb; |
| 73 | } |
| 74 | |
| 75 | /* |
| 76 | * Helper to maintain lifetime of batch op inputs and store batch op outputs. |
| 77 | */ |
| 78 | typedef struct grpcwrap_batch_context { |
| 79 | grpc_metadata_array send_initial_metadata; |
| 80 | grpc_byte_buffer* send_message; |
| 81 | struct { |
| 82 | grpc_metadata_array trailing_metadata; |
| 83 | } send_status_from_server; |
| 84 | grpc_metadata_array recv_initial_metadata; |
| 85 | grpc_byte_buffer* recv_message; |
| 86 | struct { |
| 87 | grpc_metadata_array trailing_metadata; |
| 88 | grpc_status_code status; |
| 89 | grpc_slice status_details; |
| 90 | } recv_status_on_client; |
| 91 | int recv_close_on_server_cancelled; |
| 92 | } grpcwrap_batch_context; |
| 93 | |
| 94 | GPR_EXPORT grpcwrap_batch_context* GPR_CALLTYPE |
| 95 | grpcwrap_batch_context_create() { |
| 96 | auto* ctx = |
| 97 | (grpcwrap_batch_context*)gpr_malloc(sizeof(grpcwrap_batch_context)); |
| 98 | memset(ctx, 0, sizeof(grpcwrap_batch_context)); |
| 99 | return ctx; |
| 100 | } |
| 101 | |
| 102 | typedef struct { |
| 103 | grpc_call* call; |
| 104 | grpc_call_details call_details; |
| 105 | grpc_metadata_array request_metadata; |
| 106 | } grpcwrap_request_call_context; |
| 107 | |
| 108 | GPR_EXPORT grpcwrap_request_call_context* GPR_CALLTYPE |
| 109 | grpcwrap_request_call_context_create() { |
| 110 | auto* ctx = (grpcwrap_request_call_context*)gpr_malloc( |
| 111 | sizeof(grpcwrap_request_call_context)); |
| 112 | memset(ctx, 0, sizeof(grpcwrap_request_call_context)); |
| 113 | return ctx; |
| 114 | } |
| 115 | |
| 116 | /* |
| 117 | * Destroys array->metadata. |
| 118 | * The array pointer itself is not freed. |
| 119 | */ |
| 120 | void grpcwrap_metadata_array_destroy_metadata_only(grpc_metadata_array* array) { |
| 121 | gpr_free(array->metadata); |
| 122 | } |
| 123 | |
| 124 | /* |
| 125 | * Destroys keys, values and array->metadata. |
| 126 | * The array pointer itself is not freed. |
| 127 | */ |
| 128 | void grpcwrap_metadata_array_destroy_metadata_including_entries( |
| 129 | grpc_metadata_array* array) { |
| 130 | size_t i; |
| 131 | if (array->metadata) { |
| 132 | for (i = 0; i < array->count; i++) { |
| 133 | grpc_slice_unref(array->metadata[i].key); |
| 134 | grpc_slice_unref(array->metadata[i].value); |
| 135 | } |
| 136 | } |
| 137 | gpr_free(array->metadata); |
| 138 | } |
| 139 | |
| 140 | /* |
| 141 | * Fully destroys the metadata array. |
| 142 | */ |
| 143 | GPR_EXPORT void GPR_CALLTYPE |
| 144 | grpcwrap_metadata_array_destroy_full(grpc_metadata_array* array) { |
| 145 | if (!array) { |
| 146 | return; |
| 147 | } |
| 148 | grpcwrap_metadata_array_destroy_metadata_including_entries(array); |
| 149 | gpr_free(array); |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * Allocate metadata array with given capacity. |
| 154 | */ |
| 155 | GPR_EXPORT void GPR_CALLTYPE |
| 156 | grpcwrap_metadata_array_init(grpc_metadata_array* array, size_t capacity) { |
| 157 | array->count = 0; |
| 158 | array->capacity = capacity; |
| 159 | if (!capacity) { |
| 160 | array->metadata = nullptr; |
| 161 | return; |
| 162 | } |
| 163 | |
| 164 | auto* arr = (grpc_metadata*)gpr_malloc(sizeof(grpc_metadata) * capacity); |
| 165 | memset(arr, 0, sizeof(grpc_metadata) * capacity); |
| 166 | array->metadata = arr; |
| 167 | } |
| 168 | |
| 169 | GPR_EXPORT void GPR_CALLTYPE grpcwrap_metadata_array_add( |
| 170 | grpc_metadata_array* array, const char* key, size_t key_length, |
| 171 | const char* value, size_t value_length) { |
| 172 | GPR_ASSERT(array->count <= array->capacity); |
| 173 | size_t i = array->count; |
| 174 | if (i == array->capacity) { |
| 175 | array->capacity = array->capacity ? array->capacity * 2 : 4; |
| 176 | array->metadata = (grpc_metadata*)gpr_realloc( |
| 177 | array->metadata, array->capacity * sizeof(grpc_metadata)); |
| 178 | memset(array->metadata + i, 0, |
| 179 | sizeof(grpc_metadata) * (array->capacity - i)); |
| 180 | } |
| 181 | array->metadata[i].key = grpc_slice_from_copied_buffer(key, key_length); |
| 182 | array->metadata[i].value = grpc_slice_from_copied_buffer(value, value_length); |
| 183 | array->count++; |
| 184 | } |
| 185 | |
| 186 | GPR_EXPORT const char* GPR_CALLTYPE grpcwrap_metadata_array_get_key( |
| 187 | const grpc_metadata_array* array, size_t index, size_t* key_length) { |
| 188 | GPR_ASSERT(index < array->count); |
| 189 | *key_length = GRPC_SLICE_LENGTH(array->metadata[index].key); |
| 190 | return (char*)GRPC_SLICE_START_PTR(array->metadata[index].key); |
| 191 | } |
| 192 | |
| 193 | GPR_EXPORT const char* GPR_CALLTYPE grpcwrap_metadata_array_get_value( |
| 194 | const grpc_metadata_array* array, size_t index, size_t* value_length) { |
| 195 | GPR_ASSERT(index < array->count); |
| 196 | *value_length = GRPC_SLICE_LENGTH(array->metadata[index].value); |
| 197 | return (char*)GRPC_SLICE_START_PTR(array->metadata[index].value); |
| 198 | } |
| 199 | |
| 200 | GPR_EXPORT void GPR_CALLTYPE |
| 201 | grpcwrap_metadata_array_cleanup(grpc_metadata_array* array) { |
| 202 | grpcwrap_metadata_array_destroy_metadata_including_entries(array); |
| 203 | } |
| 204 | |
| 205 | GPR_EXPORT void GPR_CALLTYPE |
| 206 | grpcwrap_metadata_array_shrink_to_fit(grpc_metadata_array* array) { |
| 207 | GPR_ASSERT(array->count <= array->capacity); |
| 208 | if (array->count == array->capacity) { |
| 209 | return; |
| 210 | } |
| 211 | if (array->count) { |
| 212 | array->metadata = (grpc_metadata*)gpr_realloc( |
| 213 | array->metadata, array->count * sizeof(grpc_metadata)); |
| 214 | array->capacity = array->count; |
| 215 | } else { |
| 216 | grpcwrap_metadata_array_cleanup(array); |
| 217 | array->capacity = 0; |
| 218 | array->metadata = nullptr; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | /* Move contents of metadata array */ |
| 223 | void grpcwrap_metadata_array_move(grpc_metadata_array* dest, |
| 224 | grpc_metadata_array* src) { |
| 225 | if (!src) { |
| 226 | dest->capacity = 0; |
| 227 | dest->count = 0; |
| 228 | dest->metadata = nullptr; |
| 229 | return; |
| 230 | } |
| 231 | |
| 232 | dest->capacity = src->capacity; |
| 233 | dest->count = src->count; |
| 234 | dest->metadata = src->metadata; |
| 235 | |
| 236 | src->capacity = 0; |
| 237 | src->count = 0; |
| 238 | src->metadata = nullptr; |
| 239 | } |
| 240 | |
| 241 | GPR_EXPORT void GPR_CALLTYPE |
| 242 | grpcwrap_batch_context_destroy(grpcwrap_batch_context* ctx) { |
| 243 | if (!ctx) { |
| 244 | return; |
| 245 | } |
| 246 | grpcwrap_metadata_array_destroy_metadata_including_entries( |
| 247 | &(ctx->send_initial_metadata)); |
| 248 | |
| 249 | grpc_byte_buffer_destroy(ctx->send_message); |
| 250 | |
| 251 | grpcwrap_metadata_array_destroy_metadata_including_entries( |
| 252 | &(ctx->send_status_from_server.trailing_metadata)); |
| 253 | |
| 254 | grpcwrap_metadata_array_destroy_metadata_only(&(ctx->recv_initial_metadata)); |
| 255 | |
| 256 | grpc_byte_buffer_destroy(ctx->recv_message); |
| 257 | |
| 258 | grpcwrap_metadata_array_destroy_metadata_only( |
| 259 | &(ctx->recv_status_on_client.trailing_metadata)); |
| 260 | grpc_slice_unref(ctx->recv_status_on_client.status_details); |
| 261 | |
| 262 | gpr_free(ctx); |
| 263 | } |
| 264 | |
| 265 | GPR_EXPORT void GPR_CALLTYPE |
| 266 | grpcwrap_request_call_context_destroy(grpcwrap_request_call_context* ctx) { |
| 267 | if (!ctx) { |
| 268 | return; |
| 269 | } |
| 270 | |
| 271 | if (ctx->call) { |
| 272 | grpc_call_unref(ctx->call); |
| 273 | } |
| 274 | |
| 275 | grpc_call_details_destroy(&(ctx->call_details)); |
| 276 | grpcwrap_metadata_array_destroy_metadata_only(&(ctx->request_metadata)); |
| 277 | |
| 278 | gpr_free(ctx); |
| 279 | } |
| 280 | |
| 281 | GPR_EXPORT const grpc_metadata_array* GPR_CALLTYPE |
| 282 | grpcwrap_batch_context_recv_initial_metadata( |
| 283 | const grpcwrap_batch_context* ctx) { |
| 284 | return &(ctx->recv_initial_metadata); |
| 285 | } |
| 286 | |
| 287 | GPR_EXPORT const char* GPR_CALLTYPE |
| 288 | grpcwrap_slice_raw_offset(const grpc_slice* slice, size_t offset, size_t* len) { |
| 289 | *len = GRPC_SLICE_LENGTH(*slice) - offset; |
| 290 | return (const char*)(GRPC_SLICE_START_PTR(*slice)) + offset; |
| 291 | } |
| 292 | |
| 293 | GPR_EXPORT grpc_slice GPR_CALLTYPE |
| 294 | grpcwrap_slice_copy(const grpc_slice* slice) { |
| 295 | return grpc_slice_copy(*slice); |
| 296 | } |
| 297 | |
| 298 | GPR_EXPORT void GPR_CALLTYPE grpcwrap_slice_unref(const grpc_slice* slice) { |
| 299 | grpc_slice_unref(*slice); |
| 300 | } |
| 301 | |
| 302 | GPR_EXPORT grpc_slice GPR_CALLTYPE grpcwrap_slice_ref(const grpc_slice* slice) { |
| 303 | return grpc_slice_ref(*slice); |
| 304 | } |
| 305 | |
| 306 | GPR_EXPORT size_t GPR_CALLTYPE grpcwrap_slice_length(const grpc_slice* slice) { |
| 307 | return GRPC_SLICE_LENGTH(*slice); |
| 308 | } |
| 309 | |
| 310 | GPR_EXPORT grpc_byte_buffer* GPR_CALLTYPE |
| 311 | grpcwrap_batch_context_take_recv_message(grpcwrap_batch_context* ctx) { |
| 312 | grpc_byte_buffer* buf = nullptr; |
| 313 | if (ctx->recv_message) { |
| 314 | buf = ctx->recv_message; |
| 315 | ctx->recv_message = nullptr; |
| 316 | } |
| 317 | return buf; |
| 318 | } |
| 319 | |
| 320 | GPR_EXPORT grpc_status_code GPR_CALLTYPE |
| 321 | grpcwrap_batch_context_recv_status_on_client_status( |
| 322 | const grpcwrap_batch_context* ctx) { |
| 323 | return ctx->recv_status_on_client.status; |
| 324 | } |
| 325 | |
| 326 | GPR_EXPORT const char* GPR_CALLTYPE |
| 327 | grpcwrap_batch_context_recv_status_on_client_details( |
| 328 | const grpcwrap_batch_context* ctx, size_t* details_length) { |
| 329 | *details_length = |
| 330 | GRPC_SLICE_LENGTH(ctx->recv_status_on_client.status_details); |
| 331 | return (char*)GRPC_SLICE_START_PTR(ctx->recv_status_on_client.status_details); |
| 332 | } |
| 333 | |
| 334 | GPR_EXPORT const grpc_metadata_array* GPR_CALLTYPE |
| 335 | grpcwrap_batch_context_recv_status_on_client_trailing_metadata( |
| 336 | const grpcwrap_batch_context* ctx) { |
| 337 | return &(ctx->recv_status_on_client.trailing_metadata); |
| 338 | } |
| 339 | |
| 340 | GPR_EXPORT grpc_call* GPR_CALLTYPE |
| 341 | grpcwrap_request_call_context_ref_call(grpcwrap_request_call_context* ctx) { |
| 342 | grpc_call* call = ctx->call; |
| 343 | grpc_call_ref(call); |
| 344 | return call; |
| 345 | } |
| 346 | |
| 347 | GPR_EXPORT grpc_call* GPR_CALLTYPE |
| 348 | grpcwrap_request_call_context_get_call(grpcwrap_request_call_context* ctx) { |
| 349 | return ctx->call; |
| 350 | } |
| 351 | |
| 352 | GPR_EXPORT const char* GPR_CALLTYPE grpcwrap_request_call_context_method( |
| 353 | const grpcwrap_request_call_context* ctx, size_t* method_length) { |
| 354 | *method_length = GRPC_SLICE_LENGTH(ctx->call_details.method); |
| 355 | return (char*)GRPC_SLICE_START_PTR(ctx->call_details.method); |
| 356 | } |
| 357 | |
| 358 | GPR_EXPORT const char* GPR_CALLTYPE grpcwrap_request_call_context_host( |
| 359 | const grpcwrap_request_call_context* ctx, size_t* host_length) { |
| 360 | *host_length = GRPC_SLICE_LENGTH(ctx->call_details.host); |
| 361 | return (char*)GRPC_SLICE_START_PTR(ctx->call_details.host); |
| 362 | } |
| 363 | |
| 364 | GPR_EXPORT gpr_timespec GPR_CALLTYPE grpcwrap_request_call_context_deadline( |
| 365 | const grpcwrap_request_call_context* ctx) { |
| 366 | return ctx->call_details.deadline; |
| 367 | } |
| 368 | |
| 369 | GPR_EXPORT const grpc_metadata_array* GPR_CALLTYPE |
| 370 | grpcwrap_request_call_context_metadata_array( |
| 371 | const grpcwrap_request_call_context* ctx) { |
| 372 | return &(ctx->request_metadata); |
| 373 | } |
| 374 | |
| 375 | GPR_EXPORT int32_t GPR_CALLTYPE |
| 376 | grpcwrap_batch_context_recv_close_on_server_cancelled( |
| 377 | const grpcwrap_batch_context* ctx) { |
| 378 | return (int32_t)ctx->recv_close_on_server_cancelled; |
| 379 | } |
| 380 | |
| 381 | /* Channel */ |
| 382 | |
| 383 | GPR_EXPORT grpc_call* GPR_CALLTYPE grpcwrap_channel_create_call( |
| 384 | grpc_channel* channel, grpc_call* parent_call, uint32_t propagation_mask, |
| 385 | grpc_completion_queue* cq, const char* method, size_t method_len, |
| 386 | const char* host, size_t host_len, gpr_timespec deadline) { |
| 387 | grpc_slice method_slice = grpc_slice_from_copied_buffer(method, method_len); |
| 388 | grpc_slice* host_slice_ptr = nullptr; |
| 389 | grpc_slice host_slice; |
| 390 | if (host != nullptr) { |
| 391 | host_slice = grpc_slice_from_copied_buffer(host, host_len); |
| 392 | host_slice_ptr = &host_slice; |
| 393 | } else { |
| 394 | // to silent msvc false warning |
| 395 | host_slice = grpc_empty_slice(); |
| 396 | } |
| 397 | grpc_call* ret = |
| 398 | grpc_channel_create_call(channel, parent_call, propagation_mask, cq, |
| 399 | method_slice, host_slice_ptr, deadline, nullptr); |
| 400 | grpc_slice_unref(method_slice); |
| 401 | if (host != nullptr) { |
| 402 | grpc_slice_unref(host_slice); |
| 403 | } |
| 404 | return ret; |
| 405 | } |
| 406 | |
| 407 | /* Channel args */ |
| 408 | |
| 409 | GPR_EXPORT grpc_channel_args* GPR_CALLTYPE |
| 410 | grpcwrap_channel_args_create(size_t num_args) { |
| 411 | auto* args = (grpc_channel_args*)gpr_malloc(sizeof(grpc_channel_args)); |
| 412 | memset(args, 0, sizeof(grpc_channel_args)); |
| 413 | |
| 414 | args->num_args = num_args; |
| 415 | args->args = (grpc_arg*)gpr_malloc(sizeof(grpc_arg) * num_args); |
| 416 | memset(args->args, 0, sizeof(grpc_arg) * num_args); |
| 417 | return args; |
| 418 | } |
| 419 | |
| 420 | GPR_EXPORT void GPR_CALLTYPE grpcwrap_channel_args_set_string( |
| 421 | grpc_channel_args* args, size_t index, const char* key, const char* value) { |
| 422 | GPR_ASSERT(args); |
| 423 | GPR_ASSERT(index < args->num_args); |
| 424 | args->args[index].type = GRPC_ARG_STRING; |
| 425 | args->args[index].key = gpr_strdup(key); |
| 426 | args->args[index].value.string = gpr_strdup(value); |
| 427 | } |
| 428 | |
| 429 | GPR_EXPORT void GPR_CALLTYPE grpcwrap_channel_args_set_integer( |
| 430 | grpc_channel_args* args, size_t index, const char* key, int value) { |
| 431 | GPR_ASSERT(args); |
| 432 | GPR_ASSERT(index < args->num_args); |
| 433 | args->args[index].type = GRPC_ARG_INTEGER; |
| 434 | args->args[index].key = gpr_strdup(key); |
| 435 | args->args[index].value.integer = value; |
| 436 | } |
| 437 | |
| 438 | GPR_EXPORT void GPR_CALLTYPE grpcwrap_channel_args_set_pointer_vtable( |
| 439 | grpc_channel_args* args, size_t index, const char* key, void* value, |
| 440 | const grpc_arg_pointer_vtable* vtable) { |
| 441 | GPR_ASSERT(args); |
| 442 | GPR_ASSERT(index < args->num_args); |
| 443 | args->args[index].type = GRPC_ARG_POINTER; |
| 444 | args->args[index].key = gpr_strdup(key); |
| 445 | args->args[index].value.pointer.p = vtable->copy(value); |
| 446 | args->args[index].value.pointer.vtable = vtable; |
| 447 | } |
| 448 | |
| 449 | GPR_EXPORT void GPR_CALLTYPE |
| 450 | grpcwrap_channel_args_destroy(grpc_channel_args* args) { |
| 451 | size_t i; |
| 452 | if (args) { |
| 453 | for (i = 0; i < args->num_args; i++) { |
| 454 | gpr_free(args->args[i].key); |
| 455 | if (args->args[i].type == GRPC_ARG_STRING) { |
| 456 | gpr_free(args->args[i].value.string); |
| 457 | } |
| 458 | if (args->args[i].type == GRPC_ARG_POINTER) { |
| 459 | args->args[i].value.pointer.vtable->destroy( |
| 460 | args->args[i].value.pointer.p); |
| 461 | } |
| 462 | } |
| 463 | gpr_free(args->args); |
| 464 | gpr_free(args); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | /* Call */ |
| 469 | |
| 470 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_start_unary( |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 471 | grpc_call* call, grpcwrap_batch_context* ctx, grpc_slice* send_buffer, |
| 472 | uint32_t write_flags, grpc_metadata_array* initial_metadata, |
| 473 | uint32_t initial_metadata_flags, void* tag) { |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 474 | /* TODO: don't use magic number */ |
| 475 | grpc_op ops[6]; |
| 476 | memset(ops, 0, sizeof(ops)); |
| 477 | ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 478 | grpcwrap_metadata_array_move(&(ctx->send_initial_metadata), initial_metadata); |
| 479 | ops[0].data.send_initial_metadata.count = ctx->send_initial_metadata.count; |
| 480 | ops[0].data.send_initial_metadata.metadata = |
| 481 | ctx->send_initial_metadata.metadata; |
| 482 | ops[0].flags = initial_metadata_flags; |
| 483 | ops[0].reserved = nullptr; |
| 484 | |
| 485 | ops[1].op = GRPC_OP_SEND_MESSAGE; |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 486 | ctx->send_message = grpc_raw_byte_buffer_create(send_buffer, 1); |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 487 | ops[1].data.send_message.send_message = ctx->send_message; |
| 488 | ops[1].flags = write_flags; |
| 489 | ops[1].reserved = nullptr; |
| 490 | |
| 491 | ops[2].op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
| 492 | ops[2].flags = 0; |
| 493 | ops[2].reserved = nullptr; |
| 494 | |
| 495 | ops[3].op = GRPC_OP_RECV_INITIAL_METADATA; |
| 496 | ops[3].data.recv_initial_metadata.recv_initial_metadata = |
| 497 | &(ctx->recv_initial_metadata); |
| 498 | ops[3].flags = 0; |
| 499 | ops[3].reserved = nullptr; |
| 500 | |
| 501 | ops[4].op = GRPC_OP_RECV_MESSAGE; |
| 502 | ops[4].data.recv_message.recv_message = &(ctx->recv_message); |
| 503 | ops[4].flags = 0; |
| 504 | ops[4].reserved = nullptr; |
| 505 | |
| 506 | ops[5].op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
| 507 | ops[5].data.recv_status_on_client.trailing_metadata = |
| 508 | &(ctx->recv_status_on_client.trailing_metadata); |
| 509 | ops[5].data.recv_status_on_client.status = |
| 510 | &(ctx->recv_status_on_client.status); |
| 511 | ops[5].data.recv_status_on_client.status_details = |
| 512 | &(ctx->recv_status_on_client.status_details); |
| 513 | ops[5].flags = 0; |
| 514 | ops[5].reserved = nullptr; |
| 515 | |
| 516 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 517 | nullptr); |
| 518 | } |
| 519 | |
| 520 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_start_client_streaming( |
| 521 | grpc_call* call, grpcwrap_batch_context* ctx, |
| 522 | grpc_metadata_array* initial_metadata, uint32_t initial_metadata_flags, |
| 523 | void* tag) { |
| 524 | /* TODO: don't use magic number */ |
| 525 | grpc_op ops[4]; |
| 526 | memset(ops, 0, sizeof(ops)); |
| 527 | ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 528 | grpcwrap_metadata_array_move(&(ctx->send_initial_metadata), initial_metadata); |
| 529 | ops[0].data.send_initial_metadata.count = ctx->send_initial_metadata.count; |
| 530 | ops[0].data.send_initial_metadata.metadata = |
| 531 | ctx->send_initial_metadata.metadata; |
| 532 | ops[0].flags = initial_metadata_flags; |
| 533 | ops[0].reserved = nullptr; |
| 534 | |
| 535 | ops[1].op = GRPC_OP_RECV_INITIAL_METADATA; |
| 536 | ops[1].data.recv_initial_metadata.recv_initial_metadata = |
| 537 | &(ctx->recv_initial_metadata); |
| 538 | ops[1].flags = 0; |
| 539 | ops[1].reserved = nullptr; |
| 540 | |
| 541 | ops[2].op = GRPC_OP_RECV_MESSAGE; |
| 542 | ops[2].data.recv_message.recv_message = &(ctx->recv_message); |
| 543 | ops[2].flags = 0; |
| 544 | ops[2].reserved = nullptr; |
| 545 | |
| 546 | ops[3].op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
| 547 | ops[3].data.recv_status_on_client.trailing_metadata = |
| 548 | &(ctx->recv_status_on_client.trailing_metadata); |
| 549 | ops[3].data.recv_status_on_client.status = |
| 550 | &(ctx->recv_status_on_client.status); |
| 551 | ops[3].data.recv_status_on_client.status_details = |
| 552 | &(ctx->recv_status_on_client.status_details); |
| 553 | ops[3].flags = 0; |
| 554 | ops[3].reserved = nullptr; |
| 555 | |
| 556 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 557 | nullptr); |
| 558 | } |
| 559 | |
| 560 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_start_server_streaming( |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 561 | grpc_call* call, grpcwrap_batch_context* ctx, grpc_slice* send_buffer, |
| 562 | uint32_t write_flags, grpc_metadata_array* initial_metadata, |
| 563 | uint32_t initial_metadata_flags, void* tag) { |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 564 | /* TODO: don't use magic number */ |
| 565 | grpc_op ops[4]; |
| 566 | memset(ops, 0, sizeof(ops)); |
| 567 | ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 568 | grpcwrap_metadata_array_move(&(ctx->send_initial_metadata), initial_metadata); |
| 569 | ops[0].data.send_initial_metadata.count = ctx->send_initial_metadata.count; |
| 570 | ops[0].data.send_initial_metadata.metadata = |
| 571 | ctx->send_initial_metadata.metadata; |
| 572 | ops[0].flags = initial_metadata_flags; |
| 573 | ops[0].reserved = nullptr; |
| 574 | |
| 575 | ops[1].op = GRPC_OP_SEND_MESSAGE; |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 576 | ctx->send_message = grpc_raw_byte_buffer_create(send_buffer, 1); |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 577 | ops[1].data.send_message.send_message = ctx->send_message; |
| 578 | ops[1].flags = write_flags; |
| 579 | ops[1].reserved = nullptr; |
| 580 | |
| 581 | ops[2].op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
| 582 | ops[2].flags = 0; |
| 583 | ops[2].reserved = nullptr; |
| 584 | |
| 585 | ops[3].op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
| 586 | ops[3].data.recv_status_on_client.trailing_metadata = |
| 587 | &(ctx->recv_status_on_client.trailing_metadata); |
| 588 | ops[3].data.recv_status_on_client.status = |
| 589 | &(ctx->recv_status_on_client.status); |
| 590 | ops[3].data.recv_status_on_client.status_details = |
| 591 | &(ctx->recv_status_on_client.status_details); |
| 592 | ops[3].flags = 0; |
| 593 | ops[3].reserved = nullptr; |
| 594 | |
| 595 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 596 | nullptr); |
| 597 | } |
| 598 | |
| 599 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_start_duplex_streaming( |
| 600 | grpc_call* call, grpcwrap_batch_context* ctx, |
| 601 | grpc_metadata_array* initial_metadata, uint32_t initial_metadata_flags, |
| 602 | void* tag) { |
| 603 | /* TODO: don't use magic number */ |
| 604 | grpc_op ops[2]; |
| 605 | memset(ops, 0, sizeof(ops)); |
| 606 | ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 607 | grpcwrap_metadata_array_move(&(ctx->send_initial_metadata), initial_metadata); |
| 608 | ops[0].data.send_initial_metadata.count = ctx->send_initial_metadata.count; |
| 609 | ops[0].data.send_initial_metadata.metadata = |
| 610 | ctx->send_initial_metadata.metadata; |
| 611 | ops[0].flags = initial_metadata_flags; |
| 612 | ops[0].reserved = nullptr; |
| 613 | |
| 614 | ops[1].op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
| 615 | ops[1].data.recv_status_on_client.trailing_metadata = |
| 616 | &(ctx->recv_status_on_client.trailing_metadata); |
| 617 | ops[1].data.recv_status_on_client.status = |
| 618 | &(ctx->recv_status_on_client.status); |
| 619 | ops[1].data.recv_status_on_client.status_details = |
| 620 | &(ctx->recv_status_on_client.status_details); |
| 621 | ops[1].flags = 0; |
| 622 | ops[1].reserved = nullptr; |
| 623 | |
| 624 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 625 | nullptr); |
| 626 | } |
| 627 | |
| 628 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_recv_initial_metadata( |
| 629 | grpc_call* call, grpcwrap_batch_context* ctx, void* tag) { |
| 630 | /* TODO: don't use magic number */ |
| 631 | grpc_op ops[1]; |
| 632 | ops[0].op = GRPC_OP_RECV_INITIAL_METADATA; |
| 633 | ops[0].data.recv_initial_metadata.recv_initial_metadata = |
| 634 | &(ctx->recv_initial_metadata); |
| 635 | ops[0].flags = 0; |
| 636 | ops[0].reserved = nullptr; |
| 637 | |
| 638 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 639 | nullptr); |
| 640 | } |
| 641 | |
| 642 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_send_message( |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 643 | grpc_call* call, grpcwrap_batch_context* ctx, grpc_slice* send_buffer, |
| 644 | uint32_t write_flags, int32_t send_empty_initial_metadata, void* tag) { |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 645 | /* TODO: don't use magic number */ |
| 646 | grpc_op ops[2]; |
| 647 | memset(ops, 0, sizeof(ops)); |
| 648 | size_t nops = send_empty_initial_metadata ? 2 : 1; |
| 649 | ops[0].op = GRPC_OP_SEND_MESSAGE; |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 650 | ctx->send_message = grpc_raw_byte_buffer_create(send_buffer, 1); |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 651 | ops[0].data.send_message.send_message = ctx->send_message; |
| 652 | ops[0].flags = write_flags; |
| 653 | ops[0].reserved = nullptr; |
| 654 | ops[1].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 655 | ops[1].flags = 0; |
| 656 | ops[1].reserved = nullptr; |
| 657 | |
| 658 | return grpc_call_start_batch(call, ops, nops, tag, nullptr); |
| 659 | } |
| 660 | |
| 661 | GPR_EXPORT grpc_call_error GPR_CALLTYPE |
| 662 | grpcwrap_call_send_close_from_client(grpc_call* call, void* tag) { |
| 663 | /* TODO: don't use magic number */ |
| 664 | grpc_op ops[1]; |
| 665 | ops[0].op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
| 666 | ops[0].flags = 0; |
| 667 | ops[0].reserved = nullptr; |
| 668 | |
| 669 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 670 | nullptr); |
| 671 | } |
| 672 | |
| 673 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_send_status_from_server( |
| 674 | grpc_call* call, grpcwrap_batch_context* ctx, grpc_status_code status_code, |
| 675 | const char* status_details, size_t status_details_len, |
| 676 | grpc_metadata_array* trailing_metadata, int32_t send_empty_initial_metadata, |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 677 | grpc_slice* optional_send_buffer, uint32_t write_flags, void* tag) { |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 678 | /* TODO: don't use magic number */ |
| 679 | grpc_op ops[3]; |
| 680 | memset(ops, 0, sizeof(ops)); |
| 681 | size_t nops = 1; |
| 682 | grpc_slice status_details_slice = |
| 683 | grpc_slice_from_copied_buffer(status_details, status_details_len); |
| 684 | ops[0].op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
| 685 | ops[0].data.send_status_from_server.status = status_code; |
| 686 | ops[0].data.send_status_from_server.status_details = &status_details_slice; |
| 687 | grpcwrap_metadata_array_move( |
| 688 | &(ctx->send_status_from_server.trailing_metadata), trailing_metadata); |
| 689 | ops[0].data.send_status_from_server.trailing_metadata_count = |
| 690 | ctx->send_status_from_server.trailing_metadata.count; |
| 691 | ops[0].data.send_status_from_server.trailing_metadata = |
| 692 | ctx->send_status_from_server.trailing_metadata.metadata; |
| 693 | ops[0].flags = 0; |
| 694 | ops[0].reserved = nullptr; |
| 695 | if (optional_send_buffer) { |
| 696 | ops[nops].op = GRPC_OP_SEND_MESSAGE; |
Jeff Vander Stoep | 08902cf | 2020-11-19 19:03:52 +0100 | [diff] [blame] | 697 | ctx->send_message = grpc_raw_byte_buffer_create(optional_send_buffer, 1); |
Jeff Vander Stoep | 3adfea8 | 2020-10-14 15:35:59 +0200 | [diff] [blame] | 698 | ops[nops].data.send_message.send_message = ctx->send_message; |
| 699 | ops[nops].flags = write_flags; |
| 700 | ops[nops].reserved = nullptr; |
| 701 | nops++; |
| 702 | } |
| 703 | if (send_empty_initial_metadata) { |
| 704 | ops[nops].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 705 | ops[nops].flags = 0; |
| 706 | ops[nops].reserved = nullptr; |
| 707 | nops++; |
| 708 | } |
| 709 | grpc_call_error ret = grpc_call_start_batch(call, ops, nops, tag, nullptr); |
| 710 | grpc_slice_unref(status_details_slice); |
| 711 | return ret; |
| 712 | } |
| 713 | |
| 714 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_recv_message( |
| 715 | grpc_call* call, grpcwrap_batch_context* ctx, void* tag) { |
| 716 | /* TODO: don't use magic number */ |
| 717 | grpc_op ops[1]; |
| 718 | ops[0].op = GRPC_OP_RECV_MESSAGE; |
| 719 | ops[0].data.recv_message.recv_message = &(ctx->recv_message); |
| 720 | ops[0].flags = 0; |
| 721 | ops[0].reserved = nullptr; |
| 722 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 723 | nullptr); |
| 724 | } |
| 725 | |
| 726 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_start_serverside( |
| 727 | grpc_call* call, grpcwrap_batch_context* ctx, void* tag) { |
| 728 | /* TODO: don't use magic number */ |
| 729 | grpc_op ops[1]; |
| 730 | ops[0].op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
| 731 | ops[0].data.recv_close_on_server.cancelled = |
| 732 | (&ctx->recv_close_on_server_cancelled); |
| 733 | ops[0].flags = 0; |
| 734 | ops[0].reserved = nullptr; |
| 735 | |
| 736 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 737 | nullptr); |
| 738 | } |
| 739 | |
| 740 | GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcwrap_call_send_initial_metadata( |
| 741 | grpc_call* call, grpcwrap_batch_context* ctx, |
| 742 | grpc_metadata_array* initial_metadata, void* tag) { |
| 743 | /* TODO: don't use magic number */ |
| 744 | grpc_op ops[1]; |
| 745 | memset(ops, 0, sizeof(ops)); |
| 746 | ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| 747 | grpcwrap_metadata_array_move(&(ctx->send_initial_metadata), initial_metadata); |
| 748 | ops[0].data.send_initial_metadata.count = ctx->send_initial_metadata.count; |
| 749 | ops[0].data.send_initial_metadata.metadata = |
| 750 | ctx->send_initial_metadata.metadata; |
| 751 | ops[0].flags = 0; |
| 752 | ops[0].reserved = nullptr; |
| 753 | |
| 754 | return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), tag, |
| 755 | nullptr); |
| 756 | } |
| 757 | |
| 758 | /** Kick call's completion queue, it should be called after there is an event |
| 759 | ready to poll. |
| 760 | THREAD SAFETY: grpcwrap_call_kick_completion_queue is thread-safe |
| 761 | because it does not change the call's state. */ |
| 762 | GPR_EXPORT grpc_call_error GPR_CALLTYPE |
| 763 | grpcwrap_call_kick_completion_queue(grpc_call* call, void* tag) { |
| 764 | // Empty batch grpc_op kicks call's completion queue immediately. |
| 765 | return grpc_call_start_batch(call, nullptr, 0, tag, nullptr); |
| 766 | } |
| 767 | |
| 768 | /* Server */ |
| 769 | |
| 770 | GPR_EXPORT grpc_call_error GPR_CALLTYPE |
| 771 | grpcwrap_server_request_call(grpc_server* server, grpc_completion_queue* cq, |
| 772 | grpcwrap_request_call_context* ctx, void* tag) { |
| 773 | return grpc_server_request_call(server, &(ctx->call), &(ctx->call_details), |
| 774 | &(ctx->request_metadata), cq, cq, tag); |
| 775 | } |