src/afb-xreq.c

   1 /*
   2  * Copyright (C) 2017 "IoT.bzh"
   3  * Author José Bollo <jose.bollo@iot.bzh>
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *   http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #define _GNU_SOURCE
  19 #define AFB_BINDING_PRAGMA_NO_VERBOSE_MACRO
  20
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <errno.h>
  24
  25 #include <json-c/json.h>
  26 #include <afb/afb-binding.h>
  27
  28 #include "afb-context.h"
  29 #include "afb-xreq.h"
  30 #include "afb-evt.h"
  31 #include "afb-msg-json.h"
  32 #include "afb-subcall.h"
  33 #include "afb-hook.h"
  34 #include "afb-api.h"
  35 #include "afb-apiset.h"
  36 #include "afb-auth.h"
  37 #include "jobs.h"
  38 #include "verbose.h"
  39
  40 /******************************************************************************/
  41
  42 static struct json_object *xreq_json_cb(void *closure)
  43 {
  44         struct afb_xreq *xreq = closure;
  45         return xreq->json ? : (xreq->json = xreq->queryitf->json(xreq));
  46 }
  47
  48 static struct afb_arg xreq_get_cb(void *closure, const char *name)
  49 {
  50         struct afb_xreq *xreq = closure;
  51         if (xreq->queryitf->get)
  52                 return xreq->queryitf->get(xreq, name);
  53         else
  54                 return afb_msg_json_get_arg(xreq_json_cb(closure), name);
  55 }
  56
  57 static void xreq_success_cb(void *closure, struct json_object *obj, const char *info)
  58 {
  59         struct afb_xreq *xreq = closure;
  60
  61         if (xreq->replied) {
  62                 ERROR("reply called more than one time!!");
  63                 json_object_put(obj);
  64         } else {
  65                 xreq->replied = 1;
  66                 if (xreq->queryitf->success)
  67                         xreq->queryitf->success(xreq, obj, info);
  68                 else
  69                         xreq->queryitf->reply(xreq, 0, afb_msg_json_reply_ok(info, obj, &xreq->context, NULL));
  70         }
  71 }
  72
  73 static void xreq_fail_cb(void *closure, const char *status, const char *info)
  74 {
  75         struct afb_xreq *xreq = closure;
  76
  77         if (xreq->replied) {
  78                 ERROR("reply called more than one time!!");
  79         } else {
  80                 xreq->replied = 1;
  81                 if (xreq->queryitf->fail)
  82                         xreq->queryitf->fail(xreq, status, info);
  83                 else
  84                         xreq->queryitf->reply(xreq, 1, afb_msg_json_reply_error(status, info, &xreq->context, NULL));
  85         }
  86 }
  87
  88 static void *xreq_context_get_cb(void *closure)
  89 {
  90         struct afb_xreq *xreq = closure;
  91         return afb_context_get(&xreq->context);
  92 }
  93
  94 static void xreq_context_set_cb(void *closure, void *value, void (*free_value)(void*))
  95 {
  96         struct afb_xreq *xreq = closure;
  97         afb_context_set(&xreq->context, value, free_value);
  98 }
  99
 100 static void xreq_addref_cb(void *closure)
 101 {
 102         struct afb_xreq *xreq = closure;
 103         __atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED);
 104 }
 105
 106 static void xreq_unref_cb(void *closure)
 107 {
 108         struct afb_xreq *xreq = closure;
 109         if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) {
 110                 xreq->queryitf->unref(xreq);
 111         }
 112 }
 113
 114 static void xreq_session_close_cb(void *closure)
 115 {
 116         struct afb_xreq *xreq = closure;
 117         afb_context_close(&xreq->context);
 118 }
 119
 120 static int xreq_session_set_LOA_cb(void *closure, unsigned level)
 121 {
 122         struct afb_xreq *xreq = closure;
 123         return afb_context_change_loa(&xreq->context, level);
 124 }
 125
 126 static int xreq_subscribe_cb(void *closure, struct afb_event event)
 127 {
 128         struct afb_xreq *xreq = closure;
 129         return afb_xreq_subscribe(xreq, event);
 130 }
 131
 132 int afb_xreq_subscribe(struct afb_xreq *xreq, struct afb_event event)
 133 {
 134         if (xreq->listener)
 135                 return afb_evt_add_watch(xreq->listener, event);
 136         if (xreq->queryitf->subscribe)
 137                 return xreq->queryitf->subscribe(xreq, event);
 138         ERROR("no event listener, subscription impossible");
 139         errno = EINVAL;
 140         return -1;
 141 }
 142
 143 static int xreq_unsubscribe_cb(void *closure, struct afb_event event)
 144 {
 145         struct afb_xreq *xreq = closure;
 146         return afb_xreq_unsubscribe(xreq, event);
 147 }
 148
 149 int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event event)
 150 {
 151         if (xreq->listener)
 152                 return afb_evt_remove_watch(xreq->listener, event);
 153         if (xreq->queryitf->unsubscribe)
 154                 return xreq->queryitf->unsubscribe(xreq, event);
 155         ERROR("no event listener, unsubscription impossible");
 156         errno = EINVAL;
 157         return -1;
 158 }
 159
 160 static void xreq_subcall_cb(void *closure, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
 161 {
 162         struct afb_xreq *xreq = closure;
 163
 164         if (xreq->queryitf->subcall) {
 165                 xreq->queryitf->subcall(xreq, api, verb, args, callback, cb_closure);
 166                 json_object_put(args);
 167         } else {
 168                 afb_subcall(xreq, api, verb, args, callback, cb_closure);
 169         }
 170 }
 171
 172 struct xreq_sync
 173 {
 174         struct afb_xreq *caller;
 175         const char *api;
 176         const char *verb;
 177         struct json_object *args;
 178         struct jobloop *jobloop;
 179         struct json_object *result;
 180         int iserror;
 181 };
 182
 183 static void xreq_sync_leave(struct xreq_sync *sync)
 184 {
 185         struct jobloop *jobloop = sync->jobloop;
 186         if (jobloop) {
 187                 sync->jobloop = NULL;
 188                 jobs_leave(jobloop);
 189         }
 190 }
 191
 192 static void xreq_sync_reply(void *closure, int iserror, struct json_object *obj)
 193 {
 194         struct xreq_sync *sync = closure;
 195
 196         sync->iserror = iserror;
 197         sync->result = json_object_get(obj);
 198         xreq_sync_leave(sync);
 199 }
 200
 201 static void xreq_sync_enter(int signum, void *closure, struct jobloop *jobloop)
 202 {
 203         struct xreq_sync *sync = closure;
 204
 205         if (!signum) {
 206                 sync->jobloop = jobloop;
 207                 xreq_subcall_cb(sync->caller, sync->api, sync->verb, json_object_get(sync->args), xreq_sync_reply, sync);
 208         } else {
 209                 sync->iserror = 1;
 210                 xreq_sync_leave(sync);
 211         }
 212 }
 213
 214 static int xreq_subcallsync_cb(void *closure, const char *api, const char *verb, struct json_object *args, struct json_object **result)
 215 {
 216         int rc;
 217         struct xreq_sync sync;
 218         struct afb_xreq *xreq = closure;
 219
 220         sync.caller = xreq;
 221         sync.api = api;
 222         sync.verb = verb;
 223         sync.args = args;
 224         sync.jobloop = NULL;
 225         sync.result = NULL;
 226         sync.iserror = 1;
 227
 228         rc = jobs_enter(NULL, 0, xreq_sync_enter, &sync);
 229         json_object_put(args);
 230         if (rc < 0 || sync.iserror) {
 231                 *result = sync.result ? : afb_msg_json_internal_error();
 232                 return 0;
 233         }
 234         *result = sync.result;
 235         return 1;
 236 }
 237
 238 /******************************************************************************/
 239
 240 static struct json_object *xreq_hooked_json_cb(void *closure)
 241 {
 242         struct json_object *r = xreq_json_cb(closure);
 243         struct afb_xreq *xreq = closure;
 244         return afb_hook_xreq_json(xreq, r);
 245 }
 246
 247 static struct afb_arg xreq_hooked_get_cb(void *closure, const char *name)
 248 {
 249         struct afb_arg r = xreq_get_cb(closure, name);
 250         struct afb_xreq *xreq = closure;
 251         return afb_hook_xreq_get(xreq, name, r);
 252 }
 253
 254 static void xreq_hooked_success_cb(void *closure, struct json_object *obj, const char *info)
 255 {
 256         struct afb_xreq *xreq = closure;
 257         afb_hook_xreq_success(xreq, obj, info);
 258         xreq_success_cb(closure, obj, info);
 259 }
 260
 261 static void xreq_hooked_fail_cb(void *closure, const char *status, const char *info)
 262 {
 263         struct afb_xreq *xreq = closure;
 264         afb_hook_xreq_fail(xreq, status, info);
 265         xreq_fail_cb(closure, status, info);
 266 }
 267
 268 static void *xreq_hooked_context_get_cb(void *closure)
 269 {
 270         void *r = xreq_context_get_cb(closure);
 271         struct afb_xreq *xreq = closure;
 272         return afb_hook_xreq_context_get(xreq, r);
 273 }
 274
 275 static void xreq_hooked_context_set_cb(void *closure, void *value, void (*free_value)(void*))
 276 {
 277         struct afb_xreq *xreq = closure;
 278         afb_hook_xreq_context_set(xreq, value, free_value);
 279         xreq_context_set_cb(closure, value, free_value);
 280 }
 281
 282 static void xreq_hooked_addref_cb(void *closure)
 283 {
 284         struct afb_xreq *xreq = closure;
 285         afb_hook_xreq_addref(xreq);
 286         xreq_addref_cb(closure);
 287 }
 288
 289 static void xreq_hooked_unref_cb(void *closure)
 290 {
 291         struct afb_xreq *xreq = closure;
 292         afb_hook_xreq_unref(xreq);
 293         if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED)) {
 294                 afb_hook_xreq_end(xreq);
 295                 xreq->queryitf->unref(xreq);
 296         }
 297 }
 298
 299 static void xreq_hooked_session_close_cb(void *closure)
 300 {
 301         struct afb_xreq *xreq = closure;
 302         afb_hook_xreq_session_close(xreq);
 303         xreq_session_close_cb(closure);
 304 }
 305
 306 static int xreq_hooked_session_set_LOA_cb(void *closure, unsigned level)
 307 {
 308         int r = xreq_session_set_LOA_cb(closure, level);
 309         struct afb_xreq *xreq = closure;
 310         return afb_hook_xreq_session_set_LOA(xreq, level, r);
 311 }
 312
 313 static int xreq_hooked_subscribe_cb(void *closure, struct afb_event event)
 314 {
 315         int r = xreq_subscribe_cb(closure, event);
 316         struct afb_xreq *xreq = closure;
 317         return afb_hook_xreq_subscribe(xreq, event, r);
 318 }
 319
 320 static int xreq_hooked_unsubscribe_cb(void *closure, struct afb_event event)
 321 {
 322         int r = xreq_unsubscribe_cb(closure, event);
 323         struct afb_xreq *xreq = closure;
 324         return afb_hook_xreq_unsubscribe(xreq, event, r);
 325 }
 326
 327 struct reply
 328 {
 329         struct afb_xreq *xreq;
 330         void (*callback)(void*, int, struct json_object*);
 331         void *closure;
 332 };
 333
 334 static void xreq_hooked_subcall_reply_cb(void *closure, int iserror, struct json_object *result)
 335 {
 336         struct reply *reply = closure;
 337
 338         afb_hook_xreq_subcall_result(reply->xreq, iserror, result);
 339         reply->callback(reply->closure, iserror, result);
 340         free(reply);
 341 }
 342
 343 static void xreq_hooked_subcall_cb(void *closure, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
 344 {
 345         struct reply *reply = malloc(sizeof *reply);
 346         struct afb_xreq *xreq = closure;
 347         afb_hook_xreq_subcall(xreq, api, verb, args);
 348         if (reply) {
 349                 reply->xreq = xreq;
 350                 reply->callback = callback;
 351                 reply->closure = cb_closure;
 352                 xreq_subcall_cb(closure, api, verb, args, xreq_hooked_subcall_reply_cb, reply);
 353         } else {
 354                 ERROR("out of memory");
 355                 xreq_subcall_cb(closure, api, verb, args, callback, cb_closure);
 356         }
 357 }
 358
 359 static int xreq_hooked_subcallsync_cb(void *closure, const char *api, const char *verb, struct json_object *args, struct json_object **result)
 360 {
 361         int r;
 362         struct afb_xreq *xreq = closure;
 363         afb_hook_xreq_subcallsync(xreq, api, verb, args);
 364         r = xreq_subcallsync_cb(closure, api, verb, args, result);
 365         return afb_hook_xreq_subcallsync_result(xreq, r, *result);
 366 }
 367
 368 /******************************************************************************/
 369
 370 const struct afb_req_itf xreq_itf = {
 371         .json = xreq_json_cb,
 372         .get = xreq_get_cb,
 373         .success = xreq_success_cb,
 374         .fail = xreq_fail_cb,
 375         .context_get = xreq_context_get_cb,
 376         .context_set = xreq_context_set_cb,
 377         .addref = xreq_addref_cb,
 378         .unref = xreq_unref_cb,
 379         .session_close = xreq_session_close_cb,
 380         .session_set_LOA = xreq_session_set_LOA_cb,
 381         .subscribe = xreq_subscribe_cb,
 382         .unsubscribe = xreq_unsubscribe_cb,
 383         .subcall = xreq_subcall_cb,
 384         .subcallsync = xreq_subcallsync_cb
 385 };
 386
 387 const struct afb_req_itf xreq_hooked_itf = {
 388         .json = xreq_hooked_json_cb,
 389         .get = xreq_hooked_get_cb,
 390         .success = xreq_hooked_success_cb,
 391         .fail = xreq_hooked_fail_cb,
 392         .context_get = xreq_hooked_context_get_cb,
 393         .context_set = xreq_hooked_context_set_cb,
 394         .addref = xreq_hooked_addref_cb,
 395         .unref = xreq_hooked_unref_cb,
 396         .session_close = xreq_hooked_session_close_cb,
 397         .session_set_LOA = xreq_hooked_session_set_LOA_cb,
 398         .subscribe = xreq_hooked_subscribe_cb,
 399         .unsubscribe = xreq_hooked_unsubscribe_cb,
 400         .subcall = xreq_hooked_subcall_cb,
 401         .subcallsync = xreq_hooked_subcallsync_cb
 402 };
 403
 404 static inline struct afb_req to_req(struct afb_xreq *xreq)
 405 {
 406         return (struct afb_req){ .itf = xreq->hookflags ? &xreq_hooked_itf : &xreq_itf, .closure = xreq };
 407 }
 408
 409 /******************************************************************************/
 410
 411 struct json_object *afb_xreq_json(struct afb_xreq *xreq)
 412 {
 413         return afb_req_json(to_req(xreq));
 414 }
 415
 416 void afb_xreq_success(struct afb_xreq *xreq, struct json_object *obj, const char *info)
 417 {
 418         afb_req_success(to_req(xreq), obj, info);
 419 }
 420
 421 void afb_xreq_success_f(struct afb_xreq *xreq, struct json_object *obj, const char *info, ...)
 422 {
 423         char *message;
 424         va_list args;
 425         va_start(args, info);
 426         if (info == NULL || vasprintf(&message, info, args) < 0)
 427                 message = NULL;
 428         va_end(args);
 429         afb_xreq_success(xreq, obj, message);
 430         free(message);
 431 }
 432
 433 void afb_xreq_fail(struct afb_xreq *xreq, const char *status, const char *info)
 434 {
 435         afb_req_fail(to_req(xreq), status, info);
 436 }
 437
 438 void afb_xreq_fail_f(struct afb_xreq *xreq, const char *status, const char *info, ...)
 439 {
 440         char *message;
 441         va_list args;
 442         va_start(args, info);
 443         if (info == NULL || vasprintf(&message, info, args) < 0)
 444                 message = NULL;
 445         va_end(args);
 446         afb_xreq_fail(xreq, status, message);
 447         free(message);
 448 }
 449
 450 const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
 451 {
 452         struct json_object *obj = xreq_json_cb(xreq);
 453         const char *result = json_object_to_json_string(obj);
 454         if (size != NULL)
 455                 *size = strlen(result);
 456         return result;
 457 }
 458
 459 void afb_xreq_addref(struct afb_xreq *xreq)
 460 {
 461         afb_req_addref(to_req(xreq));
 462 }
 463
 464 void afb_xreq_unref(struct afb_xreq *xreq)
 465 {
 466         afb_req_unref(to_req(xreq));
 467 }
 468
 469 void afb_xreq_unhooked_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
 470 {
 471         xreq_subcall_cb(xreq, api, verb, args, callback, cb_closure);
 472 }
 473
 474 void afb_xreq_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
 475 {
 476         afb_req_subcall(to_req(xreq), api, verb, args, callback, cb_closure);
 477 }
 478
 479 int afb_xreq_unhooked_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
 480 {
 481         return xreq_subcallsync_cb(xreq, api, verb, args, result);
 482 }
 483
 484 int afb_xreq_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
 485 {
 486         return afb_req_subcall_sync(to_req(xreq), api, verb, args, result);
 487 }
 488
 489 static int xreq_session_check_apply_v1(struct afb_xreq *xreq, int sessionflags)
 490 {
 491         int loa;
 492
 493         if ((sessionflags & (AFB_SESSION_CLOSE_V1|AFB_SESSION_RENEW_V1|AFB_SESSION_CHECK_V1|AFB_SESSION_LOA_EQ_V1)) != 0) {
 494                 if (!afb_context_check(&xreq->context)) {
 495                         afb_context_close(&xreq->context);
 496                         afb_xreq_fail_f(xreq, "denied", "invalid token's identity");
 497                         errno = EINVAL;
 498                         return -1;
 499                 }
 500         }
 501
 502         if ((sessionflags & AFB_SESSION_LOA_GE_V1) != 0) {
 503                 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_V1) & AFB_SESSION_LOA_MASK_V1;
 504                 if (!afb_context_check_loa(&xreq->context, loa)) {
 505                         afb_xreq_fail_f(xreq, "denied", "invalid LOA");
 506                         errno = EPERM;
 507                         return -1;
 508                 }
 509         }
 510
 511         if ((sessionflags & AFB_SESSION_LOA_LE_V1) != 0) {
 512                 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_V1) & AFB_SESSION_LOA_MASK_V1;
 513                 if (afb_context_check_loa(&xreq->context, loa + 1)) {
 514                         afb_xreq_fail_f(xreq, "denied", "invalid LOA");
 515                         errno = EPERM;
 516                         return -1;
 517                 }
 518         }
 519
 520         if ((sessionflags & AFB_SESSION_RENEW_V1) != 0) {
 521                 afb_context_refresh(&xreq->context);
 522         }
 523         if ((sessionflags & AFB_SESSION_CLOSE_V1) != 0) {
 524                 afb_context_change_loa(&xreq->context, 0);
 525                 afb_context_close(&xreq->context);
 526         }
 527
 528         return 0;
 529 }
 530
 531 static int xreq_session_check_apply_v2(struct afb_xreq *xreq, uint32_t sessionflags, const struct afb_auth *auth)
 532 {
 533         int loa;
 534
 535         if (sessionflags != 0) {
 536                 if (!afb_context_check(&xreq->context)) {
 537                         afb_context_close(&xreq->context);
 538                         afb_xreq_fail_f(xreq, "denied", "invalid token's identity");
 539                         errno = EINVAL;
 540                         return -1;
 541                 }
 542         }
 543
 544         loa = (int)(sessionflags & AFB_SESSION_LOA_MASK_V2);
 545         if (loa && !afb_context_check_loa(&xreq->context, loa)) {
 546                 afb_xreq_fail_f(xreq, "denied", "invalid LOA");
 547                 errno = EPERM;
 548                 return -1;
 549         }
 550
 551         if (auth && !afb_auth_check(auth, xreq)) {
 552                 afb_xreq_fail_f(xreq, "denied", "authorisation refused");
 553                 errno = EPERM;
 554                 return -1;
 555         }
 556
 557         if ((sessionflags & AFB_SESSION_REFRESH_V2) != 0) {
 558                 afb_context_refresh(&xreq->context);
 559         }
 560         if ((sessionflags & AFB_SESSION_CLOSE_V2) != 0) {
 561                 afb_context_close(&xreq->context);
 562         }
 563
 564         return 0;
 565 }
 566
 567 void afb_xreq_call_verb_v1(struct afb_xreq *xreq, const struct afb_verb_desc_v1 *verb)
 568 {
 569         if (!verb)
 570                 afb_xreq_fail_unknown_verb(xreq);
 571         else
 572                 if (!xreq_session_check_apply_v1(xreq, verb->session))
 573                         verb->callback(to_req(xreq));
 574 }
 575
 576 void afb_xreq_call_verb_v2(struct afb_xreq *xreq, const struct afb_verb_v2 *verb)
 577 {
 578         if (!verb)
 579                 afb_xreq_fail_unknown_verb(xreq);
 580         else
 581                 if (!xreq_session_check_apply_v2(xreq, verb->session, verb->auth))
 582                         verb->callback(to_req(xreq));
 583 }
 584
 585 void afb_xreq_init(struct afb_xreq *xreq, const struct afb_xreq_query_itf *queryitf)
 586 {
 587         memset(xreq, 0, sizeof *xreq);
 588         xreq->refcount = 1;
 589         xreq->queryitf = queryitf;
 590 }
 591
 592 void afb_xreq_fail_unknown_api(struct afb_xreq *xreq)
 593 {
 594         afb_xreq_fail_f(xreq, "unknown-api", "api %s not found (for verb %s)", xreq->api, xreq->verb);
 595 }
 596
 597 void afb_xreq_fail_unknown_verb(struct afb_xreq *xreq)
 598 {
 599         afb_xreq_fail_f(xreq, "unknown-verb", "verb %s unknown within api %s", xreq->verb, xreq->api);
 600 }
 601
 602 static void process_sync(struct afb_xreq *xreq)
 603 {
 604         struct afb_api api;
 605
 606         /* init hooking */
 607         afb_hook_init_xreq(xreq);
 608         if (xreq->hookflags)
 609                 afb_hook_xreq_begin(xreq);
 610
 611         /* search the api */
 612         if (afb_apiset_get(xreq->apiset, xreq->api, &api) < 0) {
 613                 afb_xreq_fail_f(xreq, "unknown-api", "api %s not found", xreq->api);
 614         } else {
 615                 xreq->context.api_key = api.closure;
 616                 api.itf->call(api.closure, xreq);
 617         }
 618 }
 619
 620 static void process_async(int signum, void *arg)
 621 {
 622         struct afb_xreq *xreq = arg;
 623
 624         if (signum != 0) {
 625                 afb_xreq_fail_f(xreq, "aborted", "signal %s(%d) caught", strsignal(signum), signum);
 626         } else {
 627                 process_sync(xreq);
 628         }
 629         afb_xreq_unref(xreq);
 630 }
 631
 632 void afb_xreq_process(struct afb_xreq *xreq, struct afb_apiset *apiset)
 633 {
 634         xreq->apiset = apiset;
 635
 636         afb_xreq_addref(xreq);
 637         if (jobs_queue(NULL, afb_apiset_timeout_get(apiset), process_async, xreq) < 0) {
 638                 /* TODO: allows or not to proccess it directly as when no threading? (see above) */
 639                 ERROR("can't process job with threads: %m");
 640                 afb_xreq_fail_f(xreq, "cancelled", "not able to create a job for the task");
 641                 afb_xreq_unref(xreq);
 642         }
 643         afb_xreq_unref(xreq);
 644 }
 645