| 1 | /* fakethr.h |
| 2 | * |
| 3 | * Copyright (C) 1999, by Larry Wall and others |
| 4 | * |
| 5 | * You may distribute under the terms of either the GNU General Public |
| 6 | * License or the Artistic License, as specified in the README file. |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | typedef int perl_mutex; |
| 11 | typedef int perl_key; |
| 12 | |
| 13 | typedef struct perl_thread *perl_os_thread; |
| 14 | /* With fake threads, thr is global(ish) so we don't need dTHR */ |
| 15 | #define dTHR extern int errno |
| 16 | |
| 17 | struct perl_wait_queue { |
| 18 | struct perl_thread * thread; |
| 19 | struct perl_wait_queue * next; |
| 20 | }; |
| 21 | typedef struct perl_wait_queue *perl_cond; |
| 22 | |
| 23 | /* Ask thread.h to include our per-thread extras */ |
| 24 | #define HAVE_THREAD_INTERN |
| 25 | struct thread_intern { |
| 26 | perl_os_thread next_run, prev_run; /* Linked list of runnable threads */ |
| 27 | perl_cond wait_queue; /* Wait queue that we are waiting on */ |
| 28 | IV private; /* Holds data across time slices */ |
| 29 | I32 savemark; /* Holds MARK for thread join values */ |
| 30 | }; |
| 31 | |
| 32 | #define init_thread_intern(t) \ |
| 33 | STMT_START { \ |
| 34 | t->self = (t); \ |
| 35 | (t)->i.next_run = (t)->i.prev_run = (t); \ |
| 36 | (t)->i.wait_queue = 0; \ |
| 37 | (t)->i.private = 0; \ |
| 38 | } STMT_END |
| 39 | |
| 40 | /* |
| 41 | * Note that SCHEDULE() is only callable from pp code (which |
| 42 | * must be expecting to be restarted). We'll have to do |
| 43 | * something a bit different for XS code. |
| 44 | */ |
| 45 | |
| 46 | #define SCHEDULE() return schedule(), PL_op |
| 47 | |
| 48 | #define MUTEX_LOCK(m) |
| 49 | #define MUTEX_UNLOCK(m) |
| 50 | #define MUTEX_INIT(m) |
| 51 | #define MUTEX_DESTROY(m) |
| 52 | #define COND_INIT(c) perl_cond_init(c) |
| 53 | #define COND_SIGNAL(c) perl_cond_signal(c) |
| 54 | #define COND_BROADCAST(c) perl_cond_broadcast(c) |
| 55 | #define COND_WAIT(c, m) \ |
| 56 | STMT_START { \ |
| 57 | perl_cond_wait(c); \ |
| 58 | SCHEDULE(); \ |
| 59 | } STMT_END |
| 60 | #define COND_DESTROY(c) |
| 61 | |
| 62 | #define THREAD_CREATE(t, f) f((t)) |
| 63 | #define THREAD_POST_CREATE(t) NOOP |
| 64 | |
| 65 | #define YIELD NOOP |
| 66 | |
| 67 | /* |
| 68 | * Local variables: |
| 69 | * c-indentation-style: bsd |
| 70 | * c-basic-offset: 4 |
| 71 | * indent-tabs-mode: t |
| 72 | * End: |
| 73 | * |
| 74 | * ex: set ts=8 sts=4 sw=4 noet: |
| 75 | */ |