/libs/headers/gc/gc_pthread_redirects.h

http://github.com/nddrylliog/ooc · C++ Header · 54 lines · 31 code · 10 blank · 13 comment · 3 complexity · 5cf9535ac8a8e4b27fdc322172f7ac21 MD5 · raw file 

    

  1. /* Our pthread support normally needs to intercept a number of thread	*/
    2. 

  2. /* calls.  We arrange to do that here, if appropriate.			*/
    3. 

  3. 

  4. #ifndef GC_PTHREAD_REDIRECTS_H
    5. 

  5. 

  6. #define GC_PTHREAD_REDIRECTS_H
    7. 

  7. 

  8. #if !defined(GC_USE_LD_WRAP) && defined(GC_PTHREADS)
    9. 

  9. /* We need to intercept calls to many of the threads primitives, so   	 */
    10. 

  10. /* that we can locate thread stacks and stop the world.                  */
    11. 

  11. /* Note also that the collector cannot always see thread specific data.  */
    12. 

  12. /* Thread specific data should generally consist of pointers to          */
    13. 

  13. /* uncollectable objects (allocated with GC_malloc_uncollectable,        */
    14. 

  14. /* not the system malloc), which are deallocated using the destructor    */
    15. 

  15. /* facility in thr_keycreate.  Alternatively, keep a redundant pointer   */
    16. 

  16. /* to thread specific data on the thread stack. 			 */
    17. 

  17. 

  18. # include <pthread.h>
    19. 

  19. # include <signal.h>
    20. 

  20. 

  21.   int GC_pthread_create(pthread_t *new_thread,
    22. 

  22.                         const pthread_attr_t *attr,
    23. 

  23. 		        void *(*start_routine)(void *), void *arg);
    24. 

  24. #ifndef GC_DARWIN_THREADS
    25. 

  25.   int GC_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);
    26. 

  26. #endif
    27. 

  27.   int GC_pthread_join(pthread_t thread, void **retval);
    28. 

  28.   int GC_pthread_detach(pthread_t thread);
    29. 

  29. 

  30. #if defined(GC_OSF1_THREADS) \
    31. 

  31.     && defined(_PTHREAD_USE_MANGLED_NAMES_) && !defined(_PTHREAD_USE_PTDNAM_)
    32. 

  32. /* Unless the compiler supports #pragma extern_prefix, the Tru64 UNIX
    33. 

  33.    <pthread.h> redefines some POSIX thread functions to use mangled names.
    34. 

  34.    If so, undef them before redefining. */
    35. 

  35. # undef pthread_create
    36. 

  36. # undef pthread_join
    37. 

  37. # undef pthread_detach
    38. 

  38. #endif
    39. 

  39. 

  40. # define pthread_create GC_pthread_create
    41. 

  41. # define pthread_join GC_pthread_join
    42. 

  42. # define pthread_detach GC_pthread_detach
    43. 

  43. 

  44. #ifndef GC_DARWIN_THREADS
    45. 

  45. # ifdef pthread_sigmask
    46. 

  46. #  undef pthread_sigmask
    47. 

  47. # endif	 /* pthread_sigmask */
    48. 

  48. # define pthread_sigmask GC_pthread_sigmask
    49. 

  49. # define dlopen GC_dlopen
    50. 

  50. #endif
    51. 

  51. 

  52. #endif /* GC_xxxxx_THREADS */
    53. 

  53. 

  54. #endif /* GC_PTHREAD_REDIRECTS_H */
    55.