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| 253 | |
| 254 | //---------------------------------------------------------------------------- |
| 255 | static int |
| 256 | handle_io(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */) |
| 257 | { |
| 258 | cache_scan_state *cstate = static_cast<cache_scan_state *>(TSContDataGet(contp)); |
| 259 | |
| 260 | switch (event) { |
| 261 | case TS_EVENT_VCONN_READ_READY: |
| 262 | case TS_EVENT_VCONN_READ_COMPLETE: { |
| 263 | // we don't care about the request, so just shut down the read vc |
| 264 | TSVConnShutdown(cstate->net_vc, 1, 0); |
| 265 | // setup the response headers so we are ready to write body |
| 266 | char hdrs[] = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"; |
| 267 | cstate->total_bytes = TSIOBufferWrite(cstate->resp_buffer, hdrs, sizeof(hdrs) - 1); |
| 268 | |
| 269 | if (cstate->key_to_delete) { |
| 270 | TSAction actionp = TSCacheRemove(contp, cstate->key_to_delete); |
| 271 | if (!TSActionDone(actionp)) { |
| 272 | cstate->pending_action = actionp; |
| 273 | } |
| 274 | } else { |
| 275 | char head[] = "<h3>Cache Contents:</h3>\n<p><pre>\n"; |
| 276 | cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, head, sizeof(head) - 1); |
| 277 | // start scan |
| 278 | TSAction actionp = TSCacheScan(contp, nullptr, 512000); |
| 279 | if (!TSActionDone(actionp)) { |
| 280 | cstate->pending_action = actionp; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | return 0; |
| 285 | } break; |
| 286 | case TS_EVENT_VCONN_WRITE_READY: { |
| 287 | Dbg(dbg_ctl, "ndone: %" PRId64 " total_bytes: % " PRId64, TSVIONDoneGet(cstate->write_vio), cstate->total_bytes); |
| 288 | cstate->write_pending = false; |
| 289 | // the cache scan handler should call vio reenable when there is |
| 290 | // available data |
| 291 | return 0; |
| 292 | } break; |
| 293 | case TS_EVENT_VCONN_WRITE_COMPLETE: { |
| 294 | Dbg(dbg_ctl, "write complete"); |
| 295 | cstate->done = 1; |
| 296 | cleanup(contp); |
| 297 | } break; |
| 298 | case TS_EVENT_VCONN_EOS: |
| 299 | default: { |
| 300 | cstate->done = 1; |
| 301 | cleanup(contp); |
| 302 | } break; |
| 303 | } |
| 304 | |
| 305 | return 0; |
| 306 | } |
| 307 | |
| 308 | //---------------------------------------------------------------------------- |
| 309 | // handler for VConnection and CacheScan events |
no test coverage detected