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Remove `coop-threads' files that had been useless since 2005-03-02.
This commit is contained in:
Ludovic Courtès
parent
70eca63557
commit
cc39ff0ea1
2 changed files with 0 additions and 326 deletions
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/* classes: h_files */
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#ifndef SCM_COOP_DEFS_H
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#define SCM_COOP_DEFS_H
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/* Copyright (C) 1996,1997,1998,1999,2000,2001, 2002, 2006 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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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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#include "libguile/iselect.h"
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#if SCM_HAVE_WINSOCK2_H
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# include <winsock2.h>
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#endif
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#ifdef GUILE_PTHREAD_COMPAT
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#include <pthread.h>
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#endif
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/* This file is included by threads.h, which, in turn, is included by
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libguile.h while coop-threads.h only is included by
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coop-threads.c. */
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/* The coop_t struct must be declared here, since macros in this file
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refer to the data member. */
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/* The notion of a thread is merged with the notion of a queue.
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Thread stuff: thread status (sp) and stuff to use during
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(re)initialization. Queue stuff: next thread in the queue
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(next). */
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struct qt_t;
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typedef struct coop_t {
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struct qt_t *sp; /* QuickThreads handle. */
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void *sto; /* `malloc'-allocated stack. */
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struct coop_t *next; /* Next thread in the queue. */
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struct coop_t *all_next;
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struct coop_t *all_prev;
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void *data; /* Thread local data */
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void **specific; /* Data associated with keys */
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int n_keys; /* Upper limit for keys on this thread */
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void *base; /* Base of stack */
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void *top; /* Top of stack */
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void *joining; /* A queue of threads waiting to join this
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thread */
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SCM handle; /* SCM handle, protected via scm_all_threads. */
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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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int timeoutp;
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struct timeval wakeup_time; /* Time to stop sleeping */
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int _errno;
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int retval;
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#ifdef GUILE_PTHREAD_COMPAT
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pthread_t dummy_thread;
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pthread_mutex_t dummy_mutex;
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#endif
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} coop_t;
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/* A queue is a circular list of threads. The queue head is a
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designated list element. If this is a uniprocessor-only
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implementation we can store the `main' thread in this, but in a
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multiprocessor there are several `heavy' threads but only one run
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queue. A fancier implementation might have private run queues,
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which would lead to a simpler (trivial) implementation */
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typedef struct coop_q_t {
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coop_t t;
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coop_t *tail;
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} coop_q_t;
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/* A Mutex variable is made up of a owner thread, and a queue of threads
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waiting on the mutex */
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typedef struct coop_m {
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coop_t *owner; /* Mutex owner */
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int level; /* for recursive locks. */
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coop_q_t waiting; /* Queue of waiting threads */
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} coop_m;
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typedef int coop_mattr;
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SCM_API int coop_mutex_init (coop_m*);
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SCM_API int coop_new_mutex_init (coop_m*, coop_mattr*);
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SCM_API int coop_mutex_lock (coop_m*);
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SCM_API int coop_mutex_trylock (coop_m*);
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SCM_API int coop_mutex_unlock (coop_m*);
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SCM_API int coop_mutex_destroy (coop_m*);
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/* A Condition variable is made up of a list of threads waiting on the
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condition. */
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typedef struct coop_c {
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coop_q_t waiting; /* Queue of waiting threads */
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} coop_c;
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typedef int coop_cattr;
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SCM_API int coop_condition_variable_init (coop_c*);
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SCM_API int coop_new_condition_variable_init (coop_c*, coop_cattr*);
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SCM_API int coop_condition_variable_wait_mutex (coop_c*, coop_m*);
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SCM_API int coop_condition_variable_timed_wait_mutex (coop_c*,
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coop_m*,
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const scm_t_timespec *abstime);
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SCM_API int coop_condition_variable_signal (coop_c*);
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SCM_API int coop_condition_variable_broadcast (coop_c*);
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SCM_API int coop_condition_variable_destroy (coop_c*);
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typedef int coop_k;
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typedef coop_k scm_t_key;
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SCM_API int coop_key_create (coop_k *keyp, void (*destruktor) (void *value));
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SCM_API int coop_setspecific (coop_k key, const void *value);
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SCM_API void *coop_getspecific (coop_k key);
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SCM_API int coop_key_delete (coop_k);
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#define scm_key_create coop_key_create
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#define scm_setspecific coop_setspecific
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#define scm_getspecific coop_getspecific
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#define scm_key_delete coop_key_delete
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SCM_API coop_t *coop_global_curr; /* Currently-executing thread. */
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SCM_API void coop_join (coop_t *t);
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SCM_API void coop_yield (void);
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SCM_API size_t scm_switch_counter;
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SCM_API size_t scm_thread_count;
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/* Some iselect functions. */
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/* I'm not sure whether these three declarations should be here.
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They're really defined in iselect.c, so you'd think they'd go in
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iselect.h, but they use coop_t, defined above, which uses things
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defined in iselect.h. Basically, we're making at best a flailing
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(and failing) attempt at modularity here, and I don't have time to
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rethink this at the moment. This code awaits a Hero. --JimB
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*/
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SCM_API void coop_timeout_qinsert (coop_q_t *, coop_t *);
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SCM_API coop_t *coop_next_runnable_thread (void);
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SCM_API coop_t *coop_wait_for_runnable_thread_now (struct timeval *);
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SCM_API coop_t *coop_wait_for_runnable_thread (void);
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/* Cooperative threads don't need to have these defined */
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#define SCM_CRITICAL_SECTION_START
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#define SCM_CRITICAL_SECTION_END
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#define SCM_NO_CRITICAL_SECTION_OWNER 0
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#define SCM_THREAD_SWITCH_COUNT 50 /* was 10 /mdj */
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#if 0
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#define SCM_THREAD_SWITCHING_CODE \
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do { \
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if (scm_thread_count > 1) \
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coop_yield(); \
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} while (0)
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#else
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#define SCM_THREAD_SWITCHING_CODE \
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do { \
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if (scm_thread_count > 1) \
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{ \
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scm_switch_counter--; \
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if (scm_switch_counter == 0) \
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{ \
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scm_switch_counter = SCM_THREAD_SWITCH_COUNT; \
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coop_yield(); \
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} \
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} \
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} while (0)
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#endif
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/* For pthreads, this is a value associated with a specific key.
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* For coop, we use a special field for increased efficiency.
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*/
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#define SCM_THREAD_LOCAL_DATA (coop_global_curr->data)
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#define SCM_SET_THREAD_LOCAL_DATA(ptr) (coop_global_curr->data = (ptr))
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#endif /* SCM_COOP_DEFS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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@ -1,105 +0,0 @@
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/* classes: h_files */
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#ifndef SCM_COOP_THREADS_H
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#define SCM_COOP_THREADS_H
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/* Copyright (C) 1996,1997,1998,2000, 2002, 2006 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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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* This file is only included by coop-threads.c while coop-defs.h is
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included by threads.h, which, in turn, is included by
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libguile.h. */
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/* The coop_t struct is declared in coop-defs.h. */
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#include "libguile/__scm.h"
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#include <time.h>
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#include "libguile/coop-defs.h"
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#include "qt/qt.h"
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/* This code is based on a sample thread libraru by David Keppel.
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Portions of this file fall under the following copyright: */
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/*
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* QuickThreads -- Threads-building toolkit.
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* Copyright (c) 1993 by David Keppel
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that the above copyright notice and this notice
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* appear in all copies. This software is provided as a
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* proof-of-concept and for demonstration purposes; there is no
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* representation about the suitability of this software for any
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* purpose.
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*/
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/* Each thread starts by calling a user-supplied function of this
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type. */
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typedef void (coop_userf_t)(void *p0);
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/* Call this before any other primitives. */
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SCM_API void coop_init (void);
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/* When one or more threads are created by the main thread,
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the system goes multithread when this is called. It is done
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(no more runable threads) when this returns. */
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SCM_API void coop_start (void);
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/* Create a thread and make it runable. When the thread starts
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running it will call `f' with arguments `p0' and `p1'. */
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SCM_API coop_t *coop_create (coop_userf_t *f, void *p0);
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/* The current thread stops running but stays runable.
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It is an error to call `coop_yield' before `coop_start'
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is called or after `coop_start' returns. */
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SCM_API void coop_yield (void);
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/* Like `coop_yield' but the thread is discarded. Any intermediate
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state is lost. The thread can also terminate by simply
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returning. */
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SCM_API void coop_abort (void);
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/* The following are needed in iselect.c */
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SCM_API coop_t *coop_qget (coop_q_t *);
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SCM_API void coop_qput (coop_q_t *, coop_t *);
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SCM_API void *coop_sleephelp (qt_t *, void *, void *);
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SCM_API coop_t *coop_wait_for_runnable_thread ();
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SCM_API coop_q_t coop_global_runq; /* A queue of runable threads. */
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SCM_API coop_q_t coop_global_sleepq;
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SCM_API coop_q_t coop_tmp_queue;
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SCM_API coop_q_t coop_global_allq; /* A queue of all threads. */
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SCM_API coop_t *coop_global_curr; /* Currently-executing thread. */
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#endif /* SCM_COOP_THREADS_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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