| 1 | /* |
| 2 | * test-simple-ipc.c: verify that the Inter-Process Communication works. |
| 3 | */ |
| 4 | |
| 5 | #include "test-tool.h" |
| 6 | #include "gettext.h" |
| 7 | #include "simple-ipc.h" |
| 8 | #include "parse-options.h" |
| 9 | #include "thread-utils.h" |
| 10 | #include "strvec.h" |
| 11 | #include "run-command.h" |
| 12 | #include "trace2.h" |
| 13 | |
| 14 | #ifndef SUPPORTS_SIMPLE_IPC |
| 15 | int cmd__simple_ipc(int argc, const char **argv) |
| 16 | { |
| 17 | die("simple IPC not available on this platform"); |
| 18 | } |
| 19 | #else |
| 20 | |
| 21 | /* |
| 22 | * The test daemon defines an "application callback" that supports a |
| 23 | * series of commands (see `test_app_cb()`). |
| 24 | * |
| 25 | * Unknown commands are caught here and we send an error message back |
| 26 | * to the client process. |
| 27 | */ |
| 28 | static int app__unhandled_command(const char *command, |
| 29 | ipc_server_reply_cb *reply_cb, |
| 30 | struct ipc_server_reply_data *reply_data) |
| 31 | { |
| 32 | struct strbuf buf = STRBUF_INIT; |
| 33 | int ret; |
| 34 | |
| 35 | strbuf_addf(&buf, "unhandled command: %s", command); |
| 36 | ret = reply_cb(reply_data, buf.buf, buf.len); |
| 37 | strbuf_release(&buf); |
| 38 | |
| 39 | return ret; |
| 40 | } |
| 41 | |
| 42 | /* |
| 43 | * Reply with a single very large buffer. This is to ensure that |
| 44 | * long response are properly handled -- whether the chunking occurs |
| 45 | * in the kernel or in the (probably pkt-line) layer. |
| 46 | */ |
| 47 | #define BIG_ROWS (10000) |
| 48 | static int app__big_command(ipc_server_reply_cb *reply_cb, |
| 49 | struct ipc_server_reply_data *reply_data) |
| 50 | { |
| 51 | struct strbuf buf = STRBUF_INIT; |
| 52 | int row; |
| 53 | int ret; |
| 54 | |
| 55 | for (row = 0; row < BIG_ROWS; row++) |
| 56 | strbuf_addf(&buf, "big: %.75d\n", row); |
| 57 | |
| 58 | ret = reply_cb(reply_data, buf.buf, buf.len); |
| 59 | strbuf_release(&buf); |
| 60 | |
| 61 | return ret; |
| 62 | } |
| 63 | |
| 64 | /* |
| 65 | * Reply with a series of lines. This is to ensure that we can incrementally |
| 66 | * compute the response and chunk it to the client. |
| 67 | */ |
| 68 | #define CHUNK_ROWS (10000) |
| 69 | static int app__chunk_command(ipc_server_reply_cb *reply_cb, |
| 70 | struct ipc_server_reply_data *reply_data) |
| 71 | { |
| 72 | struct strbuf buf = STRBUF_INIT; |
| 73 | int row; |
| 74 | int ret; |
| 75 | |
| 76 | for (row = 0; row < CHUNK_ROWS; row++) { |
| 77 | strbuf_setlen(&buf, 0); |
| 78 | strbuf_addf(&buf, "big: %.75d\n", row); |
| 79 | ret = reply_cb(reply_data, buf.buf, buf.len); |
| 80 | } |
| 81 | |
| 82 | strbuf_release(&buf); |
| 83 | |
| 84 | return ret; |
| 85 | } |
| 86 | |
| 87 | /* |
| 88 | * Slowly reply with a series of lines. This is to model an expensive to |
| 89 | * compute chunked response (which might happen if this callback is running |
| 90 | * in a thread and is fighting for a lock with other threads). |
| 91 | */ |
| 92 | #define SLOW_ROWS (1000) |
| 93 | #define SLOW_DELAY_MS (10) |
| 94 | static int app__slow_command(ipc_server_reply_cb *reply_cb, |
| 95 | struct ipc_server_reply_data *reply_data) |
| 96 | { |
| 97 | struct strbuf buf = STRBUF_INIT; |
| 98 | int row; |
| 99 | int ret; |
| 100 | |
| 101 | for (row = 0; row < SLOW_ROWS; row++) { |
| 102 | strbuf_setlen(&buf, 0); |
| 103 | strbuf_addf(&buf, "big: %.75d\n", row); |
| 104 | ret = reply_cb(reply_data, buf.buf, buf.len); |
| 105 | sleep_millisec(SLOW_DELAY_MS); |
| 106 | } |
| 107 | |
| 108 | strbuf_release(&buf); |
| 109 | |
| 110 | return ret; |
| 111 | } |
| 112 | |
| 113 | /* |
| 114 | * The client sent a command followed by a (possibly very) large buffer. |
| 115 | */ |
| 116 | static int app__sendbytes_command(const char *received, size_t received_len, |
| 117 | ipc_server_reply_cb *reply_cb, |
| 118 | struct ipc_server_reply_data *reply_data) |
| 119 | { |
| 120 | struct strbuf buf_resp = STRBUF_INIT; |
| 121 | const char *p = "?"; |
| 122 | int len_ballast = 0; |
| 123 | int k; |
| 124 | int errs = 0; |
| 125 | int ret; |
| 126 | |
| 127 | /* |
| 128 | * The test is setup to send: |
| 129 | * "sendbytes" SP <n * char> |
| 130 | */ |
| 131 | if (received_len < strlen("sendbytes ")) |
| 132 | BUG("received_len is short in app__sendbytes_command"); |
| 133 | |
| 134 | if (skip_prefix(received, "sendbytes ", &p)) |
| 135 | len_ballast = strlen(p); |
| 136 | |
| 137 | /* |
| 138 | * Verify that the ballast is n copies of a single letter. |
| 139 | * And that the multi-threaded IO layer didn't cross the streams. |
| 140 | */ |
| 141 | for (k = 1; k < len_ballast; k++) |
| 142 | if (p[k] != p[0]) |
| 143 | errs++; |
| 144 | |
| 145 | if (errs) |
| 146 | strbuf_addf(&buf_resp, "errs:%d\n", errs); |
| 147 | else |
| 148 | strbuf_addf(&buf_resp, "rcvd:%c%08d\n", p[0], len_ballast); |
| 149 | |
| 150 | ret = reply_cb(reply_data, buf_resp.buf, buf_resp.len); |
| 151 | |
| 152 | strbuf_release(&buf_resp); |
| 153 | |
| 154 | return ret; |
| 155 | } |
| 156 | |
| 157 | /* |
| 158 | * An arbitrary fixed address to verify that the application instance |
| 159 | * data is handled properly. |
| 160 | */ |
| 161 | static int my_app_data = 42; |
| 162 | |
| 163 | static ipc_server_application_cb test_app_cb; |
| 164 | |
| 165 | /* |
| 166 | * This is the "application callback" that sits on top of the |
| 167 | * "ipc-server". It completely defines the set of commands supported |
| 168 | * by this application. |
| 169 | */ |
| 170 | static int test_app_cb(void *application_data, |
| 171 | const char *command, size_t command_len, |
| 172 | ipc_server_reply_cb *reply_cb, |
| 173 | struct ipc_server_reply_data *reply_data) |
| 174 | { |
| 175 | /* |
| 176 | * Verify that we received the application-data that we passed |
| 177 | * when we started the ipc-server. (We have several layers of |
| 178 | * callbacks calling callbacks and it's easy to get things mixed |
| 179 | * up (especially when some are "void*").) |
| 180 | */ |
| 181 | if (application_data != (void*)&my_app_data) |
| 182 | BUG("application_cb: application_data pointer wrong"); |
| 183 | |
| 184 | if (command_len == 4 && !strncmp(command, "quit", 4)) { |
| 185 | /* |
| 186 | * The client sent a "quit" command. This is an async |
| 187 | * request for the server to shutdown. |
| 188 | * |
| 189 | * We DO NOT send the client a response message |
| 190 | * (because we have nothing to say and the other |
| 191 | * server threads have not yet stopped). |
| 192 | * |
| 193 | * Tell the ipc-server layer to start shutting down. |
| 194 | * This includes: stop listening for new connections |
| 195 | * on the socket/pipe and telling all worker threads |
| 196 | * to finish/drain their outgoing responses to other |
| 197 | * clients. |
| 198 | * |
| 199 | * This DOES NOT force an immediate sync shutdown. |
| 200 | */ |
| 201 | return SIMPLE_IPC_QUIT; |
| 202 | } |
| 203 | |
| 204 | if (command_len == 4 && !strncmp(command, "ping", 4)) { |
| 205 | const char *answer = "pong"; |
| 206 | return reply_cb(reply_data, answer, strlen(answer)); |
| 207 | } |
| 208 | |
| 209 | if (command_len == 3 && !strncmp(command, "big", 3)) |
| 210 | return app__big_command(reply_cb, reply_data); |
| 211 | |
| 212 | if (command_len == 5 && !strncmp(command, "chunk", 5)) |
| 213 | return app__chunk_command(reply_cb, reply_data); |
| 214 | |
| 215 | if (command_len == 4 && !strncmp(command, "slow", 4)) |
| 216 | return app__slow_command(reply_cb, reply_data); |
| 217 | |
| 218 | if (command_len >= 10 && starts_with(command, "sendbytes ")) |
| 219 | return app__sendbytes_command(command, command_len, |
| 220 | reply_cb, reply_data); |
| 221 | |
| 222 | return app__unhandled_command(command, reply_cb, reply_data); |
| 223 | } |
| 224 | |
| 225 | struct cl_args |
| 226 | { |
| 227 | const char *subcommand; |
| 228 | const char *path; |
| 229 | const char *token; |
| 230 | |
| 231 | int nr_threads; |
| 232 | int max_wait_sec; |
| 233 | int bytecount; |
| 234 | int batchsize; |
| 235 | |
| 236 | char bytevalue; |
| 237 | }; |
| 238 | |
| 239 | static struct cl_args cl_args = { |
| 240 | .subcommand = NULL, |
| 241 | .path = "ipc-test", |
| 242 | .token = NULL, |
| 243 | |
| 244 | .nr_threads = 5, |
| 245 | .max_wait_sec = 60, |
| 246 | .bytecount = 1024, |
| 247 | .batchsize = 10, |
| 248 | |
| 249 | .bytevalue = 'x', |
| 250 | }; |
| 251 | |
| 252 | /* |
| 253 | * This process will run as a simple-ipc server and listen for IPC commands |
| 254 | * from client processes. |
| 255 | */ |
| 256 | static int daemon__run_server(void) |
| 257 | { |
| 258 | int ret; |
| 259 | |
| 260 | struct ipc_server_opts opts = { |
| 261 | .nr_threads = cl_args.nr_threads, |
| 262 | }; |
| 263 | |
| 264 | /* |
| 265 | * Synchronously run the ipc-server. We don't need any application |
| 266 | * instance data, so pass an arbitrary pointer (that we'll later |
| 267 | * verify made the round trip). |
| 268 | */ |
| 269 | ret = ipc_server_run(cl_args.path, &opts, test_app_cb, (void*)&my_app_data); |
| 270 | if (ret == -2) |
| 271 | error("socket/pipe already in use: '%s'", cl_args.path); |
| 272 | else if (ret == -1) |
| 273 | error_errno("could not start server on: '%s'", cl_args.path); |
| 274 | |
| 275 | return ret; |
| 276 | } |
| 277 | |
| 278 | static start_bg_wait_cb bg_wait_cb; |
| 279 | |
| 280 | static int bg_wait_cb(const struct child_process *cp UNUSED, |
| 281 | void *cb_data UNUSED) |
| 282 | { |
| 283 | int s = ipc_get_active_state(cl_args.path); |
| 284 | |
| 285 | switch (s) { |
| 286 | case IPC_STATE__LISTENING: |
| 287 | /* child is "ready" */ |
| 288 | return 0; |
| 289 | |
| 290 | case IPC_STATE__NOT_LISTENING: |
| 291 | case IPC_STATE__PATH_NOT_FOUND: |
| 292 | /* give child more time */ |
| 293 | return 1; |
| 294 | |
| 295 | default: |
| 296 | case IPC_STATE__INVALID_PATH: |
| 297 | case IPC_STATE__OTHER_ERROR: |
| 298 | /* all the time in world won't help */ |
| 299 | return -1; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | static int daemon__start_server(void) |
| 304 | { |
| 305 | struct child_process cp = CHILD_PROCESS_INIT; |
| 306 | enum start_bg_result sbgr; |
| 307 | |
| 308 | strvec_push(&cp.args, "test-tool"); |
| 309 | strvec_push(&cp.args, "simple-ipc"); |
| 310 | strvec_push(&cp.args, "run-daemon"); |
| 311 | strvec_pushf(&cp.args, "--name=%s", cl_args.path); |
| 312 | strvec_pushf(&cp.args, "--threads=%d", cl_args.nr_threads); |
| 313 | |
| 314 | cp.no_stdin = 1; |
| 315 | cp.no_stdout = 1; |
| 316 | cp.no_stderr = 1; |
| 317 | |
| 318 | sbgr = start_bg_command(&cp, bg_wait_cb, NULL, cl_args.max_wait_sec); |
| 319 | |
| 320 | switch (sbgr) { |
| 321 | case SBGR_READY: |
| 322 | return 0; |
| 323 | |
| 324 | default: |
| 325 | case SBGR_ERROR: |
| 326 | case SBGR_CB_ERROR: |
| 327 | return error("daemon failed to start"); |
| 328 | |
| 329 | case SBGR_TIMEOUT: |
| 330 | return error("daemon not online yet"); |
| 331 | |
| 332 | case SBGR_DIED: |
| 333 | return error("daemon terminated"); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | /* |
| 338 | * This process will run a quick probe to see if a simple-ipc server |
| 339 | * is active on this path. |
| 340 | * |
| 341 | * Returns 0 if the server is alive. |
| 342 | */ |
| 343 | static int client__probe_server(void) |
| 344 | { |
| 345 | enum ipc_active_state s; |
| 346 | |
| 347 | s = ipc_get_active_state(cl_args.path); |
| 348 | switch (s) { |
| 349 | case IPC_STATE__LISTENING: |
| 350 | return 0; |
| 351 | |
| 352 | case IPC_STATE__NOT_LISTENING: |
| 353 | return error("no server listening at '%s'", cl_args.path); |
| 354 | |
| 355 | case IPC_STATE__PATH_NOT_FOUND: |
| 356 | return error("path not found '%s'", cl_args.path); |
| 357 | |
| 358 | case IPC_STATE__INVALID_PATH: |
| 359 | return error("invalid pipe/socket name '%s'", cl_args.path); |
| 360 | |
| 361 | case IPC_STATE__OTHER_ERROR: |
| 362 | default: |
| 363 | return error("other error for '%s'", cl_args.path); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | /* |
| 368 | * Send an IPC command token to an already-running server daemon and |
| 369 | * print the response. |
| 370 | * |
| 371 | * This is a simple 1 word command/token that `test_app_cb()` (in the |
| 372 | * daemon process) will understand. |
| 373 | */ |
| 374 | static int client__send_ipc(void) |
| 375 | { |
| 376 | const char *command = "(no-command)"; |
| 377 | struct strbuf buf = STRBUF_INIT; |
| 378 | struct ipc_client_connect_options options |
| 379 | = IPC_CLIENT_CONNECT_OPTIONS_INIT; |
| 380 | |
| 381 | if (cl_args.token && *cl_args.token) |
| 382 | command = cl_args.token; |
| 383 | |
| 384 | options.wait_if_busy = 1; |
| 385 | options.wait_if_not_found = 0; |
| 386 | |
| 387 | if (!ipc_client_send_command(cl_args.path, &options, |
| 388 | command, strlen(command), |
| 389 | &buf)) { |
| 390 | if (buf.len) { |
| 391 | printf("%s\n", buf.buf); |
| 392 | fflush(stdout); |
| 393 | } |
| 394 | strbuf_release(&buf); |
| 395 | |
| 396 | return 0; |
| 397 | } |
| 398 | |
| 399 | return error("failed to send '%s' to '%s'", command, cl_args.path); |
| 400 | } |
| 401 | |
| 402 | /* |
| 403 | * Send an IPC command to an already-running server and ask it to |
| 404 | * shutdown. "send quit" is an async request and queues a shutdown |
| 405 | * event in the server, so we spin and wait here for it to actually |
| 406 | * shutdown to make the unit tests a little easier to write. |
| 407 | */ |
| 408 | static int client__stop_server(void) |
| 409 | { |
| 410 | int ret; |
| 411 | time_t time_limit, now; |
| 412 | enum ipc_active_state s; |
| 413 | |
| 414 | time(&time_limit); |
| 415 | time_limit += cl_args.max_wait_sec; |
| 416 | |
| 417 | cl_args.token = "quit"; |
| 418 | |
| 419 | ret = client__send_ipc(); |
| 420 | if (ret) |
| 421 | return ret; |
| 422 | |
| 423 | for (;;) { |
| 424 | sleep_millisec(100); |
| 425 | |
| 426 | s = ipc_get_active_state(cl_args.path); |
| 427 | |
| 428 | if (s != IPC_STATE__LISTENING) { |
| 429 | /* |
| 430 | * The socket/pipe is gone and/or has stopped |
| 431 | * responding. Lets assume that the daemon |
| 432 | * process has exited too. |
| 433 | */ |
| 434 | return 0; |
| 435 | } |
| 436 | |
| 437 | time(&now); |
| 438 | if (now > time_limit) |
| 439 | return error("daemon has not shutdown yet"); |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | /* |
| 444 | * Send an IPC command followed by ballast to confirm that a large |
| 445 | * message can be sent and that the kernel or pkt-line layers will |
| 446 | * properly chunk it and that the daemon receives the entire message. |
| 447 | */ |
| 448 | static int do_sendbytes(int bytecount, char byte, const char *path, |
| 449 | const struct ipc_client_connect_options *options) |
| 450 | { |
| 451 | struct strbuf buf_send = STRBUF_INIT; |
| 452 | struct strbuf buf_resp = STRBUF_INIT; |
| 453 | |
| 454 | strbuf_addstr(&buf_send, "sendbytes "); |
| 455 | strbuf_addchars(&buf_send, byte, bytecount); |
| 456 | |
| 457 | if (!ipc_client_send_command(path, options, |
| 458 | buf_send.buf, buf_send.len, |
| 459 | &buf_resp)) { |
| 460 | strbuf_rtrim(&buf_resp); |
| 461 | printf("sent:%c%08d %s\n", byte, bytecount, buf_resp.buf); |
| 462 | fflush(stdout); |
| 463 | strbuf_release(&buf_send); |
| 464 | strbuf_release(&buf_resp); |
| 465 | |
| 466 | return 0; |
| 467 | } |
| 468 | |
| 469 | return error("client failed to sendbytes(%d, '%c') to '%s'", |
| 470 | bytecount, byte, path); |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * Send an IPC command with ballast to an already-running server daemon. |
| 475 | */ |
| 476 | static int client__sendbytes(void) |
| 477 | { |
| 478 | struct ipc_client_connect_options options |
| 479 | = IPC_CLIENT_CONNECT_OPTIONS_INIT; |
| 480 | |
| 481 | options.wait_if_busy = 1; |
| 482 | options.wait_if_not_found = 0; |
| 483 | options.uds_disallow_chdir = 0; |
| 484 | |
| 485 | return do_sendbytes(cl_args.bytecount, cl_args.bytevalue, cl_args.path, |
| 486 | &options); |
| 487 | } |
| 488 | |
| 489 | struct multiple_thread_data { |
| 490 | pthread_t pthread_id; |
| 491 | struct multiple_thread_data *next; |
| 492 | const char *path; |
| 493 | int bytecount; |
| 494 | int batchsize; |
| 495 | int sum_errors; |
| 496 | int sum_good; |
| 497 | char letter; |
| 498 | }; |
| 499 | |
| 500 | static void *multiple_thread_proc(void *_multiple_thread_data) |
| 501 | { |
| 502 | struct multiple_thread_data *d = _multiple_thread_data; |
| 503 | int k; |
| 504 | struct ipc_client_connect_options options |
| 505 | = IPC_CLIENT_CONNECT_OPTIONS_INIT; |
| 506 | |
| 507 | options.wait_if_busy = 1; |
| 508 | options.wait_if_not_found = 0; |
| 509 | /* |
| 510 | * A multi-threaded client should not be randomly calling chdir(). |
| 511 | * The test will pass without this restriction because the test is |
| 512 | * not otherwise accessing the filesystem, but it makes us honest. |
| 513 | */ |
| 514 | options.uds_disallow_chdir = 1; |
| 515 | |
| 516 | trace2_thread_start("multiple"); |
| 517 | |
| 518 | for (k = 0; k < d->batchsize; k++) { |
| 519 | if (do_sendbytes(d->bytecount + k, d->letter, d->path, &options)) |
| 520 | d->sum_errors++; |
| 521 | else |
| 522 | d->sum_good++; |
| 523 | } |
| 524 | |
| 525 | trace2_thread_exit(); |
| 526 | return NULL; |
| 527 | } |
| 528 | |
| 529 | /* |
| 530 | * Start a client-side thread pool. Each thread sends a series of |
| 531 | * IPC requests. Each request is on a new connection to the server. |
| 532 | */ |
| 533 | static int client__multiple(void) |
| 534 | { |
| 535 | struct multiple_thread_data *list = NULL; |
| 536 | int k; |
| 537 | int sum_join_errors = 0; |
| 538 | int sum_thread_errors = 0; |
| 539 | int sum_good = 0; |
| 540 | |
| 541 | for (k = 0; k < cl_args.nr_threads; k++) { |
| 542 | struct multiple_thread_data *d = xcalloc(1, sizeof(*d)); |
| 543 | d->next = list; |
| 544 | d->path = cl_args.path; |
| 545 | d->bytecount = cl_args.bytecount + cl_args.batchsize*(k/26); |
| 546 | d->batchsize = cl_args.batchsize; |
| 547 | d->sum_errors = 0; |
| 548 | d->sum_good = 0; |
| 549 | d->letter = 'A' + (k % 26); |
| 550 | |
| 551 | if (pthread_create(&d->pthread_id, NULL, multiple_thread_proc, d)) { |
| 552 | warning("failed to create thread[%d] skipping remainder", k); |
| 553 | free(d); |
| 554 | break; |
| 555 | } |
| 556 | |
| 557 | list = d; |
| 558 | } |
| 559 | |
| 560 | while (list) { |
| 561 | struct multiple_thread_data *d = list; |
| 562 | |
| 563 | if (pthread_join(d->pthread_id, NULL)) |
| 564 | sum_join_errors++; |
| 565 | |
| 566 | sum_thread_errors += d->sum_errors; |
| 567 | sum_good += d->sum_good; |
| 568 | |
| 569 | list = d->next; |
| 570 | free(d); |
| 571 | } |
| 572 | |
| 573 | printf("client (good %d) (join %d), (errors %d)\n", |
| 574 | sum_good, sum_join_errors, sum_thread_errors); |
| 575 | |
| 576 | return (sum_join_errors + sum_thread_errors) ? 1 : 0; |
| 577 | } |
| 578 | |
| 579 | int cmd__simple_ipc(int argc, const char **argv) |
| 580 | { |
| 581 | const char * const simple_ipc_usage[] = { |
| 582 | N_("test-helper simple-ipc is-active [<name>] [<options>]"), |
| 583 | N_("test-helper simple-ipc run-daemon [<name>] [<threads>]"), |
| 584 | N_("test-helper simple-ipc start-daemon [<name>] [<threads>] [<max-wait>]"), |
| 585 | N_("test-helper simple-ipc stop-daemon [<name>] [<max-wait>]"), |
| 586 | N_("test-helper simple-ipc send [<name>] [<token>]"), |
| 587 | N_("test-helper simple-ipc sendbytes [<name>] [<bytecount>] [<byte>]"), |
| 588 | N_("test-helper simple-ipc multiple [<name>] [<threads>] [<bytecount>] [<batchsize>]"), |
| 589 | NULL |
| 590 | }; |
| 591 | |
| 592 | const char *bytevalue = NULL; |
| 593 | |
| 594 | struct option options[] = { |
| 595 | #ifndef GIT_WINDOWS_NATIVE |
| 596 | OPT_STRING(0, "name", &cl_args.path, N_("name"), N_("name or pathname of unix domain socket")), |
| 597 | #else |
| 598 | OPT_STRING(0, "name", &cl_args.path, N_("name"), N_("named-pipe name")), |
| 599 | #endif |
| 600 | OPT_INTEGER(0, "threads", &cl_args.nr_threads, N_("number of threads in server thread pool")), |
| 601 | OPT_INTEGER(0, "max-wait", &cl_args.max_wait_sec, N_("seconds to wait for daemon to start or stop")), |
| 602 | |
| 603 | OPT_INTEGER(0, "bytecount", &cl_args.bytecount, N_("number of bytes")), |
| 604 | OPT_INTEGER(0, "batchsize", &cl_args.batchsize, N_("number of requests per thread")), |
| 605 | |
| 606 | /* |
| 607 | * The "byte" string here is not marked for translation and |
| 608 | * instead relies on translation in strbuf.c:humanise_bytes() to |
| 609 | * avoid conflict with the plural form. |
| 610 | */ |
| 611 | OPT_STRING(0, "byte", &bytevalue, "byte", N_("ballast character")), |
| 612 | OPT_STRING(0, "token", &cl_args.token, N_("token"), N_("command token to send to the server")), |
| 613 | |
| 614 | OPT_END() |
| 615 | }; |
| 616 | |
| 617 | if (argc < 2) |
| 618 | usage_with_options(simple_ipc_usage, options); |
| 619 | |
| 620 | show_usage_with_options_if_asked(argc, argv, |
| 621 | simple_ipc_usage, options); |
| 622 | |
| 623 | if (argc == 2 && !strcmp(argv[1], "SUPPORTS_SIMPLE_IPC")) |
| 624 | return 0; |
| 625 | |
| 626 | cl_args.subcommand = argv[1]; |
| 627 | |
| 628 | argc--; |
| 629 | argv++; |
| 630 | |
| 631 | argc = parse_options(argc, argv, NULL, options, simple_ipc_usage, 0); |
| 632 | |
| 633 | if (cl_args.nr_threads < 1) |
| 634 | cl_args.nr_threads = 1; |
| 635 | if (cl_args.max_wait_sec < 0) |
| 636 | cl_args.max_wait_sec = 0; |
| 637 | if (cl_args.bytecount < 1) |
| 638 | cl_args.bytecount = 1; |
| 639 | if (cl_args.batchsize < 1) |
| 640 | cl_args.batchsize = 1; |
| 641 | |
| 642 | if (bytevalue && *bytevalue) |
| 643 | cl_args.bytevalue = bytevalue[0]; |
| 644 | |
| 645 | /* |
| 646 | * Use '!!' on all dispatch functions to map from `error()` style |
| 647 | * (returns -1) style to `test_must_fail` style (expects 1). This |
| 648 | * makes shell error messages less confusing. |
| 649 | */ |
| 650 | |
| 651 | if (!strcmp(cl_args.subcommand, "is-active")) |
| 652 | return !!client__probe_server(); |
| 653 | |
| 654 | if (!strcmp(cl_args.subcommand, "run-daemon")) |
| 655 | return !!daemon__run_server(); |
| 656 | |
| 657 | if (!strcmp(cl_args.subcommand, "start-daemon")) |
| 658 | return !!daemon__start_server(); |
| 659 | |
| 660 | /* |
| 661 | * Client commands follow. Ensure a server is running before |
| 662 | * sending any data. This might be overkill, but then again |
| 663 | * this is a test harness. |
| 664 | */ |
| 665 | |
| 666 | if (!strcmp(cl_args.subcommand, "stop-daemon")) { |
| 667 | if (client__probe_server()) |
| 668 | return 1; |
| 669 | return !!client__stop_server(); |
| 670 | } |
| 671 | |
| 672 | if (!strcmp(cl_args.subcommand, "send")) { |
| 673 | if (client__probe_server()) |
| 674 | return 1; |
| 675 | return !!client__send_ipc(); |
| 676 | } |
| 677 | |
| 678 | if (!strcmp(cl_args.subcommand, "sendbytes")) { |
| 679 | if (client__probe_server()) |
| 680 | return 1; |
| 681 | return !!client__sendbytes(); |
| 682 | } |
| 683 | |
| 684 | if (!strcmp(cl_args.subcommand, "multiple")) { |
| 685 | if (client__probe_server()) |
| 686 | return 1; |
| 687 | return !!client__multiple(); |
| 688 | } |
| 689 | |
| 690 | die("Unhandled subcommand: '%s'", cl_args.subcommand); |
| 691 | } |
| 692 | #endif |