examples/performance-thread/pthread_shim/pthread_shim.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <sys/types.h>
  37 #include <errno.h>
  38 #define __USE_GNU
  39 #include <sched.h>
  40 #include <dlfcn.h>
  41
  42 #include <rte_log.h>
  43
  44 #include "lthread_api.h"
  45 #include "pthread_shim.h"
  46
  47 #define RTE_LOGTYPE_PTHREAD_SHIM RTE_LOGTYPE_USER3
  48
  49 #define POSIX_ERRNO(x)  (x)
  50
  51 /* some releases of FreeBSD 10, e.g. 10.0, don't have CPU_COUNT macro */
  52 #ifndef CPU_COUNT
  53 #define CPU_COUNT(x) __cpu_count(x)
  54
  55 static inline unsigned int
  56 __cpu_count(const rte_cpuset_t *cpuset)
  57 {
  58         unsigned int i, count = 0;
  59         for (i = 0; i < RTE_MAX_LCORE; i++)
  60                 if (CPU_ISSET(i, cpuset))
  61                         count++;
  62         return count;
  63 }
  64 #endif
  65
  66 /*
  67  * this flag determines at run time if we override pthread
  68  * calls and map then to equivalent lthread calls
  69  * or of we call the standard pthread function
  70  */
  71 static __thread int override;
  72
  73
  74 /*
  75  * this structures contains function pointers that will be
  76  * initialised to the loaded address of the real
  77  * pthread library API functions
  78  */
  79 struct pthread_lib_funcs {
  80 int (*f_pthread_barrier_destroy)
  81         (pthread_barrier_t *);
  82 int (*f_pthread_barrier_init)
  83         (pthread_barrier_t *, const pthread_barrierattr_t *, unsigned);
  84 int (*f_pthread_barrier_wait)
  85         (pthread_barrier_t *);
  86 int (*f_pthread_cond_broadcast)
  87         (pthread_cond_t *);
  88 int (*f_pthread_cond_destroy)
  89         (pthread_cond_t *);
  90 int (*f_pthread_cond_init)
  91         (pthread_cond_t *, const pthread_condattr_t *);
  92 int (*f_pthread_cond_signal)
  93         (pthread_cond_t *);
  94 int (*f_pthread_cond_timedwait)
  95         (pthread_cond_t *, pthread_mutex_t *, const struct timespec *);
  96 int (*f_pthread_cond_wait)
  97         (pthread_cond_t *, pthread_mutex_t *);
  98 int (*f_pthread_create)
  99         (pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
 100 int (*f_pthread_detach)
 101         (pthread_t);
 102 int (*f_pthread_equal)
 103         (pthread_t, pthread_t);
 104 void (*f_pthread_exit)
 105         (void *);
 106 void * (*f_pthread_getspecific)
 107         (pthread_key_t);
 108 int (*f_pthread_getcpuclockid)
 109         (pthread_t, clockid_t *);
 110 int (*f_pthread_join)
 111         (pthread_t, void **);
 112 int (*f_pthread_key_create)
 113         (pthread_key_t *, void (*) (void *));
 114 int (*f_pthread_key_delete)
 115         (pthread_key_t);
 116 int (*f_pthread_mutex_destroy)
 117         (pthread_mutex_t *__mutex);
 118 int (*f_pthread_mutex_init)
 119         (pthread_mutex_t *__mutex, const pthread_mutexattr_t *);
 120 int (*f_pthread_mutex_lock)
 121         (pthread_mutex_t *__mutex);
 122 int (*f_pthread_mutex_trylock)
 123         (pthread_mutex_t *__mutex);
 124 int (*f_pthread_mutex_timedlock)
 125         (pthread_mutex_t *__mutex, const struct timespec *);
 126 int (*f_pthread_mutex_unlock)
 127         (pthread_mutex_t *__mutex);
 128 int (*f_pthread_once)
 129         (pthread_once_t *, void (*) (void));
 130 int (*f_pthread_rwlock_destroy)
 131         (pthread_rwlock_t *__rwlock);
 132 int (*f_pthread_rwlock_init)
 133         (pthread_rwlock_t *__rwlock, const pthread_rwlockattr_t *);
 134 int (*f_pthread_rwlock_rdlock)
 135         (pthread_rwlock_t *__rwlock);
 136 int (*f_pthread_rwlock_timedrdlock)
 137         (pthread_rwlock_t *__rwlock, const struct timespec *);
 138 int (*f_pthread_rwlock_timedwrlock)
 139         (pthread_rwlock_t *__rwlock, const struct timespec *);
 140 int (*f_pthread_rwlock_tryrdlock)
 141         (pthread_rwlock_t *__rwlock);
 142 int (*f_pthread_rwlock_trywrlock)
 143         (pthread_rwlock_t *__rwlock);
 144 int (*f_pthread_rwlock_unlock)
 145         (pthread_rwlock_t *__rwlock);
 146 int (*f_pthread_rwlock_wrlock)
 147         (pthread_rwlock_t *__rwlock);
 148 pthread_t (*f_pthread_self)
 149         (void);
 150 int (*f_pthread_setspecific)
 151         (pthread_key_t, const void *);
 152 int (*f_pthread_spin_init)
 153         (pthread_spinlock_t *__spin, int);
 154 int (*f_pthread_spin_destroy)
 155         (pthread_spinlock_t *__spin);
 156 int (*f_pthread_spin_lock)
 157         (pthread_spinlock_t *__spin);
 158 int (*f_pthread_spin_trylock)
 159         (pthread_spinlock_t *__spin);
 160 int (*f_pthread_spin_unlock)
 161         (pthread_spinlock_t *__spin);
 162 int (*f_pthread_cancel)
 163         (pthread_t);
 164 int (*f_pthread_setcancelstate)
 165         (int, int *);
 166 int (*f_pthread_setcanceltype)
 167         (int, int *);
 168 void (*f_pthread_testcancel)
 169         (void);
 170 int (*f_pthread_getschedparam)
 171         (pthread_t pthread, int *, struct sched_param *);
 172 int (*f_pthread_setschedparam)
 173         (pthread_t, int, const struct sched_param *);
 174 int (*f_pthread_yield)
 175         (void);
 176 int (*f_pthread_setaffinity_np)
 177         (pthread_t thread, size_t cpusetsize, const rte_cpuset_t *cpuset);
 178 int (*f_nanosleep)
 179         (const struct timespec *req, struct timespec *rem);
 180 } _sys_pthread_funcs = {
 181         .f_pthread_barrier_destroy = NULL,
 182 };
 183
 184
 185 /*
 186  * this macro obtains the loaded address of a library function
 187  * and saves it.
 188  */
 189 static void *__libc_dl_handle = RTLD_NEXT;
 190
 191 #define get_addr_of_loaded_symbol(name) do {                            \
 192         char *error_str;                                                \
 193         _sys_pthread_funcs.f_##name = dlsym(__libc_dl_handle, (#name)); \
 194         error_str = dlerror();                                          \
 195         if (error_str != NULL) {                                        \
 196                 fprintf(stderr, "%s\n", error_str);                     \
 197         }                                                               \
 198 } while (0)
 199
 200
 201 /*
 202  * The constructor function initialises the
 203  * function pointers for pthread library functions
 204  */
 205 RTE_INIT(pthread_intercept_ctor)
 206 {
 207         override = 0;
 208         /*
 209          * Get the original functions
 210          */
 211         get_addr_of_loaded_symbol(pthread_barrier_destroy);
 212         get_addr_of_loaded_symbol(pthread_barrier_init);
 213         get_addr_of_loaded_symbol(pthread_barrier_wait);
 214         get_addr_of_loaded_symbol(pthread_cond_broadcast);
 215         get_addr_of_loaded_symbol(pthread_cond_destroy);
 216         get_addr_of_loaded_symbol(pthread_cond_init);
 217         get_addr_of_loaded_symbol(pthread_cond_signal);
 218         get_addr_of_loaded_symbol(pthread_cond_timedwait);
 219         get_addr_of_loaded_symbol(pthread_cond_wait);
 220         get_addr_of_loaded_symbol(pthread_create);
 221         get_addr_of_loaded_symbol(pthread_detach);
 222         get_addr_of_loaded_symbol(pthread_equal);
 223         get_addr_of_loaded_symbol(pthread_exit);
 224         get_addr_of_loaded_symbol(pthread_getspecific);
 225         get_addr_of_loaded_symbol(pthread_getcpuclockid);
 226         get_addr_of_loaded_symbol(pthread_join);
 227         get_addr_of_loaded_symbol(pthread_key_create);
 228         get_addr_of_loaded_symbol(pthread_key_delete);
 229         get_addr_of_loaded_symbol(pthread_mutex_destroy);
 230         get_addr_of_loaded_symbol(pthread_mutex_init);
 231         get_addr_of_loaded_symbol(pthread_mutex_lock);
 232         get_addr_of_loaded_symbol(pthread_mutex_trylock);
 233         get_addr_of_loaded_symbol(pthread_mutex_timedlock);
 234         get_addr_of_loaded_symbol(pthread_mutex_unlock);
 235         get_addr_of_loaded_symbol(pthread_once);
 236         get_addr_of_loaded_symbol(pthread_rwlock_destroy);
 237         get_addr_of_loaded_symbol(pthread_rwlock_init);
 238         get_addr_of_loaded_symbol(pthread_rwlock_rdlock);
 239         get_addr_of_loaded_symbol(pthread_rwlock_timedrdlock);
 240         get_addr_of_loaded_symbol(pthread_rwlock_timedwrlock);
 241         get_addr_of_loaded_symbol(pthread_rwlock_tryrdlock);
 242         get_addr_of_loaded_symbol(pthread_rwlock_trywrlock);
 243         get_addr_of_loaded_symbol(pthread_rwlock_unlock);
 244         get_addr_of_loaded_symbol(pthread_rwlock_wrlock);
 245         get_addr_of_loaded_symbol(pthread_self);
 246         get_addr_of_loaded_symbol(pthread_setspecific);
 247         get_addr_of_loaded_symbol(pthread_spin_init);
 248         get_addr_of_loaded_symbol(pthread_spin_destroy);
 249         get_addr_of_loaded_symbol(pthread_spin_lock);
 250         get_addr_of_loaded_symbol(pthread_spin_trylock);
 251         get_addr_of_loaded_symbol(pthread_spin_unlock);
 252         get_addr_of_loaded_symbol(pthread_cancel);
 253         get_addr_of_loaded_symbol(pthread_setcancelstate);
 254         get_addr_of_loaded_symbol(pthread_setcanceltype);
 255         get_addr_of_loaded_symbol(pthread_testcancel);
 256         get_addr_of_loaded_symbol(pthread_getschedparam);
 257         get_addr_of_loaded_symbol(pthread_setschedparam);
 258         get_addr_of_loaded_symbol(pthread_yield);
 259         get_addr_of_loaded_symbol(pthread_setaffinity_np);
 260         get_addr_of_loaded_symbol(nanosleep);
 261 }
 262
 263
 264 /*
 265  * Enable/Disable pthread override
 266  * state
 267  *  0 disable
 268  *  1 enable
 269  */
 270 void pthread_override_set(int state)
 271 {
 272         override = state;
 273 }
 274
 275
 276 /*
 277  * Return pthread override state
 278  * return
 279  *  0 disable
 280  *  1 enable
 281  */
 282 int pthread_override_get(void)
 283 {
 284         return override;
 285 }
 286
 287 /*
 288  * This macro is used to catch and log
 289  * invocation of stubs for unimplemented pthread
 290  * API functions.
 291  */
 292 #define NOT_IMPLEMENTED do {                            \
 293         if (override) {                                 \
 294                 RTE_LOG(WARNING,                        \
 295                         PTHREAD_SHIM,                   \
 296                         "WARNING %s NOT IMPLEMENTED\n", \
 297                         __func__);                      \
 298         }                                               \
 299 } while (0)
 300
 301 /*
 302  * pthread API override functions follow
 303  * Note in this example code only a subset of functions are
 304  * implemented.
 305  *
 306  * The stub functions provided will issue a warning log
 307  * message if an unimplemented function is invoked
 308  *
 309  */
 310
 311 int pthread_barrier_destroy(pthread_barrier_t *a)
 312 {
 313         NOT_IMPLEMENTED;
 314         return _sys_pthread_funcs.f_pthread_barrier_destroy(a);
 315 }
 316
 317 int
 318 pthread_barrier_init(pthread_barrier_t *a,
 319                      const pthread_barrierattr_t *b, unsigned c)
 320 {
 321         NOT_IMPLEMENTED;
 322         return _sys_pthread_funcs.f_pthread_barrier_init(a, b, c);
 323 }
 324
 325 int pthread_barrier_wait(pthread_barrier_t *a)
 326 {
 327         NOT_IMPLEMENTED;
 328         return _sys_pthread_funcs.f_pthread_barrier_wait(a);
 329 }
 330
 331 int pthread_cond_broadcast(pthread_cond_t *cond)
 332 {
 333         if (override) {
 334
 335                 lthread_cond_broadcast(*(struct lthread_cond **)cond);
 336                 return 0;
 337         }
 338         return _sys_pthread_funcs.f_pthread_cond_broadcast(cond);
 339 }
 340
 341 int pthread_mutex_destroy(pthread_mutex_t *mutex)
 342 {
 343         if (override)
 344                 return lthread_mutex_destroy(*(struct lthread_mutex **)mutex);
 345         return _sys_pthread_funcs.f_pthread_mutex_destroy(mutex);
 346 }
 347
 348 int pthread_cond_destroy(pthread_cond_t *cond)
 349 {
 350         if (override)
 351                 return lthread_cond_destroy(*(struct lthread_cond **)cond);
 352         return _sys_pthread_funcs.f_pthread_cond_destroy(cond);
 353 }
 354
 355 int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
 356 {
 357         if (override)
 358                 return lthread_cond_init(NULL,
 359                                 (struct lthread_cond **)cond,
 360                                 (const struct lthread_condattr *) attr);
 361         return _sys_pthread_funcs.f_pthread_cond_init(cond, attr);
 362 }
 363
 364 int pthread_cond_signal(pthread_cond_t *cond)
 365 {
 366         if (override) {
 367                 lthread_cond_signal(*(struct lthread_cond **)cond);
 368                 return 0;
 369         }
 370         return _sys_pthread_funcs.f_pthread_cond_signal(cond);
 371 }
 372
 373 int
 374 pthread_cond_timedwait(pthread_cond_t *__restrict cond,
 375                        pthread_mutex_t *__restrict mutex,
 376                        const struct timespec *__restrict time)
 377 {
 378         NOT_IMPLEMENTED;
 379         return _sys_pthread_funcs.f_pthread_cond_timedwait(cond, mutex, time);
 380 }
 381
 382 int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
 383 {
 384         if (override) {
 385                 pthread_mutex_unlock(mutex);
 386                 int rv = lthread_cond_wait(*(struct lthread_cond **)cond, 0);
 387
 388                 pthread_mutex_lock(mutex);
 389                 return rv;
 390         }
 391         return _sys_pthread_funcs.f_pthread_cond_wait(cond, mutex);
 392 }
 393
 394 int
 395 pthread_create(pthread_t *__restrict tid,
 396                 const pthread_attr_t *__restrict attr,
 397                 void *(func) (void *),
 398                void *__restrict arg)
 399 {
 400         if (override) {
 401                 int lcore = -1;
 402
 403                 if (attr != NULL) {
 404                         /* determine CPU being requested */
 405                         rte_cpuset_t cpuset;
 406
 407                         CPU_ZERO(&cpuset);
 408                         pthread_attr_getaffinity_np(attr,
 409                                                 sizeof(rte_cpuset_t),
 410                                                 &cpuset);
 411
 412                         if (CPU_COUNT(&cpuset) != 1)
 413                                 return POSIX_ERRNO(EINVAL);
 414
 415                         for (lcore = 0; lcore < LTHREAD_MAX_LCORES; lcore++) {
 416                                 if (!CPU_ISSET(lcore, &cpuset))
 417                                         continue;
 418                                 break;
 419                         }
 420                 }
 421                 return lthread_create((struct lthread **)tid, lcore,
 422                                       (void (*)(void *))func, arg);
 423         }
 424         return _sys_pthread_funcs.f_pthread_create(tid, attr, func, arg);
 425 }
 426
 427 int pthread_detach(pthread_t tid)
 428 {
 429         if (override) {
 430                 struct lthread *lt = (struct lthread *)tid;
 431
 432                 if (lt == lthread_current()) {
 433                         lthread_detach();
 434                         return 0;
 435                 }
 436                 NOT_IMPLEMENTED;
 437         }
 438         return _sys_pthread_funcs.f_pthread_detach(tid);
 439 }
 440
 441 int pthread_equal(pthread_t a, pthread_t b)
 442 {
 443         NOT_IMPLEMENTED;
 444         return _sys_pthread_funcs.f_pthread_equal(a, b);
 445 }
 446
 447 void pthread_exit_override(void *v)
 448 {
 449         if (override) {
 450                 lthread_exit(v);
 451                 return;
 452         }
 453         _sys_pthread_funcs.f_pthread_exit(v);
 454 }
 455
 456 void
 457 *pthread_getspecific(pthread_key_t key)
 458 {
 459         if (override)
 460                 return lthread_getspecific((unsigned int) key);
 461         return _sys_pthread_funcs.f_pthread_getspecific(key);
 462 }
 463
 464 int pthread_getcpuclockid(pthread_t a, clockid_t *b)
 465 {
 466         NOT_IMPLEMENTED;
 467         return _sys_pthread_funcs.f_pthread_getcpuclockid(a, b);
 468 }
 469
 470 int pthread_join(pthread_t tid, void **val)
 471 {
 472         if (override)
 473                 return lthread_join((struct lthread *)tid, val);
 474         return _sys_pthread_funcs.f_pthread_join(tid, val);
 475 }
 476
 477 int pthread_key_create(pthread_key_t *keyptr, void (*dtor) (void *))
 478 {
 479         if (override)
 480                 return lthread_key_create((unsigned int *)keyptr, dtor);
 481         return _sys_pthread_funcs.f_pthread_key_create(keyptr, dtor);
 482 }
 483
 484 int pthread_key_delete(pthread_key_t key)
 485 {
 486         if (override) {
 487                 lthread_key_delete((unsigned int) key);
 488                 return 0;
 489         }
 490         return _sys_pthread_funcs.f_pthread_key_delete(key);
 491 }
 492
 493
 494 int
 495 pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
 496 {
 497         if (override)
 498                 return lthread_mutex_init(NULL,
 499                                 (struct lthread_mutex **)mutex,
 500                                 (const struct lthread_mutexattr *)attr);
 501         return _sys_pthread_funcs.f_pthread_mutex_init(mutex, attr);
 502 }
 503
 504 int pthread_mutex_lock(pthread_mutex_t *mutex)
 505 {
 506         if (override)
 507                 return lthread_mutex_lock(*(struct lthread_mutex **)mutex);
 508         return _sys_pthread_funcs.f_pthread_mutex_lock(mutex);
 509 }
 510
 511 int pthread_mutex_trylock(pthread_mutex_t *mutex)
 512 {
 513         if (override)
 514                 return lthread_mutex_trylock(*(struct lthread_mutex **)mutex);
 515         return _sys_pthread_funcs.f_pthread_mutex_trylock(mutex);
 516 }
 517
 518 int pthread_mutex_timedlock(pthread_mutex_t *mutex, const struct timespec *b)
 519 {
 520         NOT_IMPLEMENTED;
 521         return _sys_pthread_funcs.f_pthread_mutex_timedlock(mutex, b);
 522 }
 523
 524 int pthread_mutex_unlock(pthread_mutex_t *mutex)
 525 {
 526         if (override)
 527                 return lthread_mutex_unlock(*(struct lthread_mutex **)mutex);
 528         return _sys_pthread_funcs.f_pthread_mutex_unlock(mutex);
 529 }
 530
 531 int pthread_once(pthread_once_t *a, void (b) (void))
 532 {
 533         NOT_IMPLEMENTED;
 534         return _sys_pthread_funcs.f_pthread_once(a, b);
 535 }
 536
 537 int pthread_rwlock_destroy(pthread_rwlock_t *a)
 538 {
 539         NOT_IMPLEMENTED;
 540         return _sys_pthread_funcs.f_pthread_rwlock_destroy(a);
 541 }
 542
 543 int pthread_rwlock_init(pthread_rwlock_t *a, const pthread_rwlockattr_t *b)
 544 {
 545         NOT_IMPLEMENTED;
 546         return _sys_pthread_funcs.f_pthread_rwlock_init(a, b);
 547 }
 548
 549 int pthread_rwlock_rdlock(pthread_rwlock_t *a)
 550 {
 551         NOT_IMPLEMENTED;
 552         return _sys_pthread_funcs.f_pthread_rwlock_rdlock(a);
 553 }
 554
 555 int pthread_rwlock_timedrdlock(pthread_rwlock_t *a, const struct timespec *b)
 556 {
 557         NOT_IMPLEMENTED;
 558         return _sys_pthread_funcs.f_pthread_rwlock_timedrdlock(a, b);
 559 }
 560
 561 int pthread_rwlock_timedwrlock(pthread_rwlock_t *a, const struct timespec *b)
 562 {
 563         NOT_IMPLEMENTED;
 564         return _sys_pthread_funcs.f_pthread_rwlock_timedwrlock(a, b);
 565 }
 566
 567 int pthread_rwlock_tryrdlock(pthread_rwlock_t *a)
 568 {
 569         NOT_IMPLEMENTED;
 570         return _sys_pthread_funcs.f_pthread_rwlock_tryrdlock(a);
 571 }
 572
 573 int pthread_rwlock_trywrlock(pthread_rwlock_t *a)
 574 {
 575         NOT_IMPLEMENTED;
 576         return _sys_pthread_funcs.f_pthread_rwlock_trywrlock(a);
 577 }
 578
 579 int pthread_rwlock_unlock(pthread_rwlock_t *a)
 580 {
 581         NOT_IMPLEMENTED;
 582         return _sys_pthread_funcs.f_pthread_rwlock_unlock(a);
 583 }
 584
 585 int pthread_rwlock_wrlock(pthread_rwlock_t *a)
 586 {
 587         NOT_IMPLEMENTED;
 588         return _sys_pthread_funcs.f_pthread_rwlock_wrlock(a);
 589 }
 590
 591 #ifdef RTE_EXEC_ENV_LINUXAPP
 592 int
 593 pthread_yield(void)
 594 {
 595         if (override) {
 596                 lthread_yield();
 597                 return 0;
 598         }
 599         return _sys_pthread_funcs.f_pthread_yield();
 600 }
 601 #else
 602 void
 603 pthread_yield(void)
 604 {
 605         if (override)
 606                 lthread_yield();
 607         else
 608                 _sys_pthread_funcs.f_pthread_yield();
 609 }
 610 #endif
 611
 612 pthread_t pthread_self(void)
 613 {
 614         if (override)
 615                 return (pthread_t) lthread_current();
 616         return _sys_pthread_funcs.f_pthread_self();
 617 }
 618
 619 int pthread_setspecific(pthread_key_t key, const void *data)
 620 {
 621         if (override) {
 622                 int rv =  lthread_setspecific((unsigned int)key, data);
 623                 return rv;
 624         }
 625         return _sys_pthread_funcs.f_pthread_setspecific(key, data);
 626 }
 627
 628 int pthread_spin_init(pthread_spinlock_t *a, int b)
 629 {
 630         NOT_IMPLEMENTED;
 631         return _sys_pthread_funcs.f_pthread_spin_init(a, b);
 632 }
 633
 634 int pthread_spin_destroy(pthread_spinlock_t *a)
 635 {
 636         NOT_IMPLEMENTED;
 637         return _sys_pthread_funcs.f_pthread_spin_destroy(a);
 638 }
 639
 640 int pthread_spin_lock(pthread_spinlock_t *a)
 641 {
 642         NOT_IMPLEMENTED;
 643         return _sys_pthread_funcs.f_pthread_spin_lock(a);
 644 }
 645
 646 int pthread_spin_trylock(pthread_spinlock_t *a)
 647 {
 648         NOT_IMPLEMENTED;
 649         return _sys_pthread_funcs.f_pthread_spin_trylock(a);
 650 }
 651
 652 int pthread_spin_unlock(pthread_spinlock_t *a)
 653 {
 654         NOT_IMPLEMENTED;
 655         return _sys_pthread_funcs.f_pthread_spin_unlock(a);
 656 }
 657
 658 int pthread_cancel(pthread_t tid)
 659 {
 660         if (override) {
 661                 lthread_cancel(*(struct lthread **)tid);
 662                 return 0;
 663         }
 664         return _sys_pthread_funcs.f_pthread_cancel(tid);
 665 }
 666
 667 int pthread_setcancelstate(int a, int *b)
 668 {
 669         NOT_IMPLEMENTED;
 670         return _sys_pthread_funcs.f_pthread_setcancelstate(a, b);
 671 }
 672
 673 int pthread_setcanceltype(int a, int *b)
 674 {
 675         NOT_IMPLEMENTED;
 676         return _sys_pthread_funcs.f_pthread_setcanceltype(a, b);
 677 }
 678
 679 void pthread_testcancel(void)
 680 {
 681         NOT_IMPLEMENTED;
 682         return _sys_pthread_funcs.f_pthread_testcancel();
 683 }
 684
 685
 686 int pthread_getschedparam(pthread_t tid, int *a, struct sched_param *b)
 687 {
 688         NOT_IMPLEMENTED;
 689         return _sys_pthread_funcs.f_pthread_getschedparam(tid, a, b);
 690 }
 691
 692 int pthread_setschedparam(pthread_t a, int b, const struct sched_param *c)
 693 {
 694         NOT_IMPLEMENTED;
 695         return _sys_pthread_funcs.f_pthread_setschedparam(a, b, c);
 696 }
 697
 698
 699 int nanosleep(const struct timespec *req, struct timespec *rem)
 700 {
 701         if (override) {
 702                 uint64_t ns = req->tv_sec * 1000000000 + req->tv_nsec;
 703
 704                 lthread_sleep(ns);
 705                 return 0;
 706         }
 707         return _sys_pthread_funcs.f_nanosleep(req, rem);
 708 }
 709
 710 int
 711 pthread_setaffinity_np(pthread_t thread, size_t cpusetsize,
 712                        const rte_cpuset_t *cpuset)
 713 {
 714         if (override) {
 715                 /* we only allow affinity with a single CPU */
 716                 if (CPU_COUNT(cpuset) != 1)
 717                         return POSIX_ERRNO(EINVAL);
 718
 719                 /* we only allow the current thread to sets its own affinity */
 720                 struct lthread *lt = (struct lthread *)thread;
 721
 722                 if (lthread_current() != lt)
 723                         return POSIX_ERRNO(EINVAL);
 724
 725                 /* determine the CPU being requested */
 726                 int i;
 727
 728                 for (i = 0; i < LTHREAD_MAX_LCORES; i++) {
 729                         if (!CPU_ISSET(i, cpuset))
 730                                 continue;
 731                         break;
 732                 }
 733                 /* check requested core is allowed */
 734                 if (i == LTHREAD_MAX_LCORES)
 735                         return POSIX_ERRNO(EINVAL);
 736
 737                 /* finally we can set affinity to the requested lcore */
 738                 lthread_set_affinity(i);
 739                 return 0;
 740         }
 741         return _sys_pthread_funcs.f_pthread_setaffinity_np(thread, cpusetsize,
 742                                                            cpuset);
 743 }