lib/perl5/5.6.1/msys/CORE/fakethr.h

   1 typedef int perl_mutex;
   2 typedef int perl_key;
   3
   4 typedef struct perl_thread *perl_os_thread;
   5 /* With fake threads, thr is global(ish) so we don't need dTHR */
   6 #define dTHR extern int errno
   7
   8 struct perl_wait_queue {
   9     struct perl_thread *        thread;
  10     struct perl_wait_queue *    next;
  11 };
  12 typedef struct perl_wait_queue *perl_cond;
  13
  14 /* Ask thread.h to include our per-thread extras */
  15 #define HAVE_THREAD_INTERN
  16 struct thread_intern {
  17     perl_os_thread next_run, prev_run;  /* Linked list of runnable threads */
  18     perl_cond   wait_queue;             /* Wait queue that we are waiting on */
  19     IV          private;                /* Holds data across time slices */
  20     I32         savemark;               /* Holds MARK for thread join values */
  21 };
  22
  23 #define init_thread_intern(t)                           \
  24     STMT_START {                                        \
  25         t->self = (t);                                  \
  26         (t)->i.next_run = (t)->i.prev_run = (t);        \
  27         (t)->i.wait_queue = 0;                          \
  28         (t)->i.private = 0;                             \
  29     } STMT_END
  30
  31 /*
  32  * Note that SCHEDULE() is only callable from pp code (which
  33  * must be expecting to be restarted). We'll have to do
  34  * something a bit different for XS code.
  35  */
  36
  37 #define SCHEDULE() return schedule(), PL_op
  38
  39 #define MUTEX_LOCK(m)
  40 #define MUTEX_UNLOCK(m)
  41 #define MUTEX_INIT(m)
  42 #define MUTEX_DESTROY(m)
  43 #define COND_INIT(c) perl_cond_init(c)
  44 #define COND_SIGNAL(c) perl_cond_signal(c)
  45 #define COND_BROADCAST(c) perl_cond_broadcast(c)
  46 #define COND_WAIT(c, m)         \
  47     STMT_START {                \
  48         perl_cond_wait(c);      \
  49         SCHEDULE();             \
  50     } STMT_END
  51 #define COND_DESTROY(c)
  52
  53 #define THREAD_CREATE(t, f)     f((t))
  54 #define THREAD_POST_CREATE(t)   NOOP
  55
  56 #define YIELD   NOOP