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See ChangeLog from 2005-03-02.
This commit is contained in:
Marius Vollmer
parent
cb1cfc42a4
commit
9de87eea47
67 changed files with 3044 additions and 2606 deletions
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@ -3,7 +3,7 @@
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#ifndef SCM_NULL_THREADS_H
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#define SCM_NULL_THREADS_H
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/* Copyright (C) 2002 Free Software Foundation, Inc.
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/* Copyright (C) 2005 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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@ -22,101 +22,81 @@
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/* The null-threads implementation. We provide the standard API, but
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no new threads can be created.
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/* The null-threads implementation. We provide the subset of the
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standard pthread API that is used by Guile, but no new threads can
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be created.
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This file merely exits so that Guile can be compiled and run
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without using pthreads. Improving performance via optimizations
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that are possible in a single-threaded program is not a primary
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goal.
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*/
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#error temporarily broken, compile with threads enabled (default option)
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#include <errno.h>
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/* We can't switch so don't bother trying.
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/* Threads
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*/
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#undef SCM_THREAD_SWITCHING_CODE
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#define SCM_THREAD_SWITCHING_CODE
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#define scm_i_pthread_t int
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#define scm_i_pthread_self() 0
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#define scm_i_pthread_create(t,a,f,d) (*(t)=0, (void)(f), ENOSYS)
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#define scm_i_pthread_detach(t) do { } while (0)
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#define scm_i_pthread_exit(v) exit(0)
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#define scm_i_sched_yield() 0
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#define scm_t_thread int
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/* Signals
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*/
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#define scm_i_pthread_sigmask sigprocmask
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/* The "(void)(...)" constructs in the expansions are there to ensure
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that the side effects of the argument expressions take place.
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*/
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/* Mutexes
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*/
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#define SCM_I_PTHREAD_MUTEX_INITIALIZER 0
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#define SCM_I_PTHREAD_RECURSIVE_MUTEX_INITIALIZER 0
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#define scm_i_pthread_mutex_t int
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#define scm_i_pthread_mutex_init(m,a) (*(m) = 0)
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#define scm_i_pthread_mutex_destroy(m) do { (void)(m); } while(0)
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#define scm_i_pthread_mutex_trylock(m) ((*(m))++)
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#define scm_i_pthread_mutex_lock(m) ((*(m))++)
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#define scm_i_pthread_mutex_unlock(m) ((*(m))--)
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#define scm_thread_create(th,proc,data) ((void)(proc), (void)(data), ENOTSUP)
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#define scm_thread_join(th) do { (void)(th); abort(); } while(0)
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#define scm_thread_detach(th) do { (void)(th); abort(); } while(0)
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#define scm_thread_self() 0
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/* Condition variables
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*/
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#define SCM_I_PTHREAD_COND_INITIALIZER 0
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#define scm_i_pthread_cond_t int
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#define scm_i_pthread_cond_init(c,a) (*(c) = 0)
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#define scm_i_pthread_cond_destroy(c) do { (void)(c); } while(0)
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#define scm_i_pthread_cond_signal(c) (*(c) = 1)
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#define scm_i_pthread_cond_broadcast(c) (*(c) = 1)
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#define scm_i_pthread_cond_wait(c,m) (abort(), 0)
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#define scm_i_pthread_cond_timedwait(c,m,t) (abort(), 0)
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#define scm_t_mutex int
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/* Onces
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*/
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#define scm_i_pthread_once_t int
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#define SCM_I_PTHREAD_ONCE_INIT 0
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#define scm_i_pthread_once(o,f) do { \
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if(!*(o)) { *(o)=1; f (); } \
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} while(0)
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#define scm_mutex_init(mx) do { (void)(mx); } while(0)
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#define scm_mutex_destroy(mx) do { (void)(mx); } while(0)
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#define scm_mutex_lock(mx) do { (void)(mx); } while(0)
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#define scm_mutex_trylock(mx) ((void)(mx), 1)
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#define scm_mutex_unlock(mx) do { (void)(mx); } while(0)
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/* Thread specific storage
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*/
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typedef struct scm_i_pthread_key_t {
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struct scm_i_pthread_key_t *next;
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void *value;
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void (*destr_func) (void *);
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} scm_i_pthread_key_t;
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#define scm_t_cond int
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SCM_API int scm_i_pthread_key_create (scm_i_pthread_key_t *key,
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void (*destr_func) (void *));
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#define scm_i_pthread_setspecific(k,p) ((k).value = (p))
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#define scm_i_pthread_getspecific(k) ((k).value)
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#define scm_cond_init(cv) do { (void)(cv); } while(0)
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#define scm_cond_destroy(cv) do { (void)(cv); } while(0)
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#define scm_cond_wait(cv,mx) ((void)(cv), (void)(mx), ENOTSUP)
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#define scm_cond_timedwait(cv,mx,at) ((void)(cv), (void)(mx), (void)(at), \
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ENOTSUP)
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#define scm_cond_signal(cv) do { (void)(cv); } while(0)
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#define scm_cond_broadcast(cv) do { (void)(cv); } while(0)
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/* Convenience functions
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*/
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#define scm_i_scm_pthread_mutex_lock scm_i_pthread_mutex_lock
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#define scm_i_frame_pthread_mutex_lock scm_i_pthread_mutex_lock
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#define scm_i_scm_pthread_cond_wait scm_i_pthread_cond_wait
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#define scm_i_scm_pthread_cond_timedwait scm_i_pthread_cond_timedwait
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#define scm_thread_select select
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typedef void **scm_t_key;
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#define scm_key_create(keyp) do { *(keyp) = malloc(sizeof(void*)); \
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} while(0)
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#define scm_key_delete(key) do { free(key); } while(0)
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#define scm_key_setspecific(key, value) do { *(key) = (value); } while(0)
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#define scm_key_getspecific(key) *(key)
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#if 0
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/* These are the actual prototypes of the functions/macros defined
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above. We list them here for reference. */
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typedef int scm_t_thread;
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SCM_API int scm_thread_create (scm_t_thread *th,
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void (*proc) (void *), void *data);
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SCM_API void scm_thread_join (scm_t_thread th);
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SCM_API void scm_thread_detach (scm_t_thread th);
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SCM_API scm_t_thread scm_thread_self (void);
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typedef int scm_t_mutex;
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SCM_API void scm_mutex_init (scm_t_mutex *mx);
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SCM_API void scm_mutex_destroy (scm_t_mutex *mx);
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SCM_API void scm_mutex_lock (scm_t_mutex *mx);
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SCM_API int scm_mutex_trylock (scm_t_mutex *mx);
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SCM_API void scm_mutex_unlock (scm_t_mutex *mx);
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typedef int scm_t_cond;
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SCM_API void scm_cond_init (scm_t_cond *cv);
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SCM_API void scm_cond_destroy (scm_t_cond *cv);
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SCM_API void scm_cond_wait (scm_t_cond *cv, scm_t_mutex *mx);
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SCM_API int scm_cond_timedwait (scm_t_cond *cv, scm_t_mutex *mx,
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scm_t_timespec *abstime);
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SCM_API void scm_cond_signal (scm_t_cond *cv);
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SCM_API void scm_cond_broadcast (scm_t_cond *cv);
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typedef int scm_t_key;
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SCM_API void scm_key_create (scm_t_key *keyp);
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SCM_API void scm_key_delete (scm_t_key key);
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SCM_API void scm_key_setspecific (scm_t_key key, const void *value);
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SCM_API void *scm_key_getspecific (scm_t_key key);
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SCM_API int scm_thread_select (int nfds,
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SELECT_TYPE *readfds,
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SELECT_TYPE *writefds,
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SELECT_TYPE *exceptfds,
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struct timeval *timeout);
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#endif
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#endif /* SCM_NULL_THREADS_H */
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