| 263 | }; |
| 264 | |
| 265 | static PROJ_NETWORK_HANDLE *open_cbk(PJ_CONTEXT *ctx, const char *url, |
| 266 | unsigned long long offset, |
| 267 | size_t size_to_read, void *buffer, |
| 268 | size_t *out_size_read, |
| 269 | size_t error_string_max_size, |
| 270 | char *out_error_string, void *user_data) { |
| 271 | auto exchange = static_cast<ExchangeWithCallback *>(user_data); |
| 272 | if (exchange->error) |
| 273 | return nullptr; |
| 274 | if (exchange->nextEvent >= exchange->events.size()) { |
| 275 | fprintf(stderr, "unexpected call to open(%s, %ld, %ld)\n", url, |
| 276 | (long)offset, (long)size_to_read); |
| 277 | exchange->error = true; |
| 278 | return nullptr; |
| 279 | } |
| 280 | auto openEvent = |
| 281 | dynamic_cast<OpenEvent *>(exchange->events[exchange->nextEvent].get()); |
| 282 | if (!openEvent) { |
| 283 | fprintf(stderr, |
| 284 | "unexpected call to open(%s, %ld, %ld). " |
| 285 | "Was expecting a %s event\n", |
| 286 | url, (long)offset, (long)size_to_read, |
| 287 | exchange->events[exchange->nextEvent]->type.c_str()); |
| 288 | exchange->error = true; |
| 289 | return nullptr; |
| 290 | } |
| 291 | exchange->nextEvent++; |
| 292 | if (openEvent->ctx != ctx || openEvent->url != url || |
| 293 | openEvent->offset != offset || |
| 294 | openEvent->size_to_read != size_to_read) { |
| 295 | fprintf(stderr, |
| 296 | "wrong call to open(%s, %ld, %ld). Was expecting " |
| 297 | "open(%s, %ld, %ld)\n", |
| 298 | url, (long)offset, (long)size_to_read, openEvent->url.c_str(), |
| 299 | (long)openEvent->offset, (long)openEvent->size_to_read); |
| 300 | exchange->error = true; |
| 301 | return nullptr; |
| 302 | } |
| 303 | if (!openEvent->errorMsg.empty()) { |
| 304 | snprintf(out_error_string, error_string_max_size, "%s", |
| 305 | openEvent->errorMsg.c_str()); |
| 306 | return nullptr; |
| 307 | } |
| 308 | |
| 309 | memcpy(buffer, openEvent->response.data(), openEvent->response.size()); |
| 310 | *out_size_read = openEvent->response.size(); |
| 311 | auto handle = reinterpret_cast<PROJ_NETWORK_HANDLE *>(new File()); |
| 312 | exchange->mapIdToHandle[openEvent->file_id] = handle; |
| 313 | return handle; |
| 314 | } |
| 315 | |
| 316 | static void close_cbk(PJ_CONTEXT *ctx, PROJ_NETWORK_HANDLE *handle, |
| 317 | void *user_data) { |