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920dae64 AT |
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 |