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/* fakethr.h |
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* |
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* Copyright (C) 1999, by Larry Wall and others |
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* |
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* You may distribute under the terms of either the GNU General Public |
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* License or the Artistic License, as specified in the README file. |
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* |
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*/ |
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typedef int perl_mutex; |
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typedef int perl_key; |
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typedef struct perl_thread *perl_os_thread; |
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/* With fake threads, thr is global(ish) so we don't need dTHR */ |
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#define dTHR extern int errno |
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struct perl_wait_queue { |
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struct perl_thread * thread; |
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struct perl_wait_queue * next; |
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}; |
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typedef struct perl_wait_queue *perl_cond; |
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/* Ask thread.h to include our per-thread extras */ |
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#define HAVE_THREAD_INTERN |
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struct thread_intern { |
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perl_os_thread next_run, prev_run; /* Linked list of runnable threads */ |
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perl_cond wait_queue; /* Wait queue that we are waiting on */ |
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IV private; /* Holds data across time slices */ |
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I32 savemark; /* Holds MARK for thread join values */ |
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}; |
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#define init_thread_intern(t) \ |
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STMT_START { \ |
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t->self = (t); \ |
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(t)->i.next_run = (t)->i.prev_run = (t); \ |
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(t)->i.wait_queue = 0; \ |
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(t)->i.private = 0; \ |
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} STMT_END |
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/* |
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* Note that SCHEDULE() is only callable from pp code (which |
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* must be expecting to be restarted). We'll have to do |
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* something a bit different for XS code. |
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*/ |
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#define SCHEDULE() return schedule(), PL_op |
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#define MUTEX_LOCK(m) |
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#define MUTEX_UNLOCK(m) |
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#define MUTEX_INIT(m) |
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#define MUTEX_DESTROY(m) |
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#define COND_INIT(c) perl_cond_init(c) |
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#define COND_SIGNAL(c) perl_cond_signal(c) |
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#define COND_BROADCAST(c) perl_cond_broadcast(c) |
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#define COND_WAIT(c, m) \ |
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STMT_START { \ |
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perl_cond_wait(c); \ |
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SCHEDULE(); \ |
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} STMT_END |
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#define COND_DESTROY(c) |
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#define THREAD_CREATE(t, f) f((t)) |
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#define THREAD_POST_CREATE(t) NOOP |
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#define YIELD NOOP |
