Modularize the libdimension codebase.

1 files changed, 0 insertions, 324 deletions

diff --git a/libdimension/threads.c b/libdimension/threads.c
deleted file mode 100644
index 1fee01d..0000000
--- a/libdimension/threads.c
+++ /dev/null
@@ -1,324 +0,0 @@
-/*************************************************************************
- * Copyright (C) 2010-2014 Tavian Barnes <tavianator@tavianator.com>     *
- *                                                                       *
- * This file is part of The Dimension Library.                           *
- *                                                                       *
- * The Dimension Library is free software; you can redistribute it and/  *
- * or modify it under the terms of the GNU Lesser General Public License *
- * as published by the Free Software Foundation; either version 3 of the *
- * License, or (at your option) any later version.                       *
- *                                                                       *
- * The Dimension Library is distributed in the hope that it will be      *
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
- * Lesser General Public License for more details.                       *
- *                                                                       *
- * You should have received a copy of the GNU Lesser General Public      *
- * License along with this program.  If not, see                         *
- * <http://www.gnu.org/licenses/>.                                       *
- *************************************************************************/
-
-/**
- * @file
- * Background threading.
- */
-
-#include "dimension-internal.h"
-#include <pthread.h>
-
-/// The payload to pass to the pthread callback.
-typedef struct dmnsn_thread_payload {
-  dmnsn_thread_fn *thread_fn;
-  void *arg;
-  dmnsn_future *future;
-} dmnsn_thread_payload;
-
-/// Clean up after a thread.
-static void
-dmnsn_thread_cleanup(void *arg)
-{
-  dmnsn_thread_payload *payload = arg;
-  dmnsn_future *future = payload->future;
-  dmnsn_free(payload);
-
-  dmnsn_future_finish(future);
-}
-
-/// pthread callback -- call the real thread callback.
-static void *
-dmnsn_thread(void *arg)
-{
-  dmnsn_thread_payload *payload = arg;
-  int *ret;
-
-  pthread_cleanup_push(dmnsn_thread_cleanup, payload);
-    ret  = DMNSN_MALLOC(int);
-    *ret = payload->thread_fn(payload->arg);
-  pthread_cleanup_pop(true);
-  return ret;
-}
-
-void
-dmnsn_new_thread(dmnsn_future *future, dmnsn_thread_fn *thread_fn, void *arg)
-{
-  dmnsn_thread_payload *payload = DMNSN_MALLOC(dmnsn_thread_payload);
-  payload->thread_fn = thread_fn;
-  payload->arg       = arg;
-  payload->future    = future;
-
-  if (pthread_create(&future->thread, NULL, dmnsn_thread, payload) != 0) {
-    dmnsn_error("Couldn't start thread.");
-  }
-}
-
-/// Payload for threads executed by dmnsn_execute_concurrently().
-typedef struct dmnsn_ccthread_payload {
-  dmnsn_future *future;
-  dmnsn_ccthread_fn *ccthread_fn;
-  void *arg;
-  unsigned int thread, nthreads;
-  int ret;
-  bool running;
-} dmnsn_ccthread_payload;
-
-static void *
-dmnsn_concurrent_thread(void *ptr)
-{
-  dmnsn_ccthread_payload *payload = ptr;
-  payload->ret = payload->ccthread_fn(payload->arg, payload->thread,
-                                      payload->nthreads);
-  if (payload->future) {
-    dmnsn_future_finish_thread(payload->future);
-  }
-  return NULL;
-}
-
-typedef struct dmnsn_ccthread_cleanup_payload {
-  dmnsn_future *future;
-  pthread_t *threads;
-  dmnsn_ccthread_payload *payloads;
-  unsigned int nthreads;
-} dmnsn_ccthread_cleanup_payload;
-
-static void
-dmnsn_ccthread_cleanup(void *ptr)
-{
-  dmnsn_ccthread_cleanup_payload *payload = ptr;
-
-  for (unsigned int i = 0; i < payload->nthreads; ++i) {
-    if (payload->payloads[i].running) {
-      pthread_cancel(payload->threads[i]);
-    }
-  }
-
-  for (unsigned int i = 0; i < payload->nthreads; ++i) {
-    if (payload->payloads[i].running) {
-      dmnsn_join_thread(payload->threads[i], NULL);
-    }
-  }
-
-  if (payload->future) {
-    dmnsn_future_set_nthreads(payload->future, 1);
-  }
-}
-
-int
-dmnsn_execute_concurrently(dmnsn_future *future, dmnsn_ccthread_fn *ccthread_fn,
-                           void *arg, unsigned int nthreads)
-{
-  dmnsn_assert(nthreads > 0, "Attempt to execute using 0 concurrent threads.");
-
-  if (future) {
-    dmnsn_future_set_nthreads(future, nthreads);
-  }
-
-  pthread_t threads[nthreads];
-  dmnsn_ccthread_payload payloads[nthreads];
-  for (unsigned int i = 0; i < nthreads; ++i) {
-    payloads[i].running = false;
-  }
-
-  int ret = 0;
-  dmnsn_ccthread_cleanup_payload cleanup_payload = {
-    .future = future,
-    .threads = threads,
-    .payloads = payloads,
-    .nthreads = nthreads,
-  };
-  pthread_cleanup_push(dmnsn_ccthread_cleanup, &cleanup_payload);
-    for (unsigned int i = 0; i < nthreads; ++i) {
-      payloads[i].future      = future;
-      payloads[i].ccthread_fn = ccthread_fn;
-      payloads[i].arg         = arg;
-      payloads[i].thread      = i;
-      payloads[i].nthreads    = nthreads;
-      payloads[i].ret         = -1;
-      if (pthread_create(&threads[i], NULL, dmnsn_concurrent_thread,
-                         &payloads[i]) != 0)
-      {
-        dmnsn_error("Couldn't start worker thread.");
-      }
-      payloads[i].running = true;
-    }
-
-    for (unsigned int i = 0; i < nthreads; ++i) {
-      dmnsn_join_thread(threads[i], NULL);
-      payloads[i].running = false;
-      if (payloads[i].ret != 0) {
-        ret = payloads[i].ret;
-      }
-    }
-  pthread_cleanup_pop(false);
-
-  if (future) {
-    dmnsn_future_set_nthreads(future, 1);
-  }
-
-  return ret;
-}
-
-// pthread wrappers
-
-void
-dmnsn_initialize_mutex(pthread_mutex_t *mutex)
-{
-  if (pthread_mutex_init(mutex, NULL) != 0) {
-    dmnsn_error("Couldn't initialize mutex.");
-  }
-}
-
-void
-dmnsn_lock_mutex_impl(pthread_mutex_t *mutex)
-{
-  if (pthread_mutex_lock(mutex) != 0) {
-    dmnsn_error("Couldn't lock mutex.");
-  }
-}
-
-void
-dmnsn_unlock_mutex_impl(void *mutex)
-{
-  if (pthread_mutex_unlock(mutex) != 0) {
-    dmnsn_error("Couldn't unlock mutex.");
-  }
-}
-
-void
-dmnsn_destroy_mutex(pthread_mutex_t *mutex)
-{
-  if (pthread_mutex_destroy(mutex) != 0) {
-    dmnsn_warning("Couldn't destroy mutex.");
-  }
-}
-
-void
-dmnsn_initialize_rwlock(pthread_rwlock_t *rwlock)
-{
-  if (pthread_rwlock_init(rwlock, NULL) != 0) {
-    dmnsn_error("Couldn't initialize read-write lock.");
-  }
-}
-
-void
-dmnsn_read_lock_impl(pthread_rwlock_t *rwlock)
-{
-  if (pthread_rwlock_rdlock(rwlock) != 0) {
-    dmnsn_error("Couldn't acquire read lock.");
-  }
-}
-
-void
-dmnsn_write_lock_impl(pthread_rwlock_t *rwlock)
-{
-  if (pthread_rwlock_wrlock(rwlock) != 0) {
-    dmnsn_error("Couldn't acquire write lock.");
-  }
-}
-
-void
-dmnsn_unlock_rwlock_impl(pthread_rwlock_t *rwlock)
-{
-  if (pthread_rwlock_unlock(rwlock) != 0) {
-    dmnsn_error("Couldn't unlock read-write lock.");
-  }
-}
-
-void
-dmnsn_destroy_rwlock(pthread_rwlock_t *rwlock)
-{
-  if (pthread_rwlock_destroy(rwlock) != 0) {
-    dmnsn_warning("Couldn't destroy read-write lock.");
-  }
-}
-
-void
-dmnsn_initialize_cond(pthread_cond_t *cond)
-{
-  if (pthread_cond_init(cond, NULL) != 0) {
-    dmnsn_error("Couldn't initialize condition variable.");
-  }
-}
-
-void
-dmnsn_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  if (pthread_cond_wait(cond, mutex) != 0) {
-    dmnsn_error("Couldn't wait on condition variable.");
-  }
-}
-
-void
-dmnsn_cond_broadcast(pthread_cond_t *cond)
-{
-  if (pthread_cond_broadcast(cond) != 0) {
-    dmnsn_error("Couldn't signal condition variable.");
-  }
-}
-
-void
-dmnsn_destroy_cond(pthread_cond_t *cond)
-{
-  if (pthread_cond_destroy(cond) != 0) {
-    dmnsn_warning("Couldn't destroy condition variable.");
-  }
-}
-
-void
-dmnsn_once(pthread_once_t *once, dmnsn_once_fn *once_fn)
-{
-  if (pthread_once(once, once_fn) != 0) {
-    dmnsn_error("Couldn't call one-shot function.");
-  }
-}
-
-void
-dmnsn_key_create(pthread_key_t *key, dmnsn_callback_fn *destructor)
-{
-  if (pthread_key_create(key, destructor) != 0) {
-    dmnsn_error("Couldn't initialize thread-specific pointer.");
-  }
-}
-
-void
-dmnsn_setspecific(pthread_key_t key, const void *value)
-{
-  if (pthread_setspecific(key, value) != 0) {
-    dmnsn_error("Couldn't set thread-specific pointer.");
-  }
-}
-
-void
-dmnsn_key_delete(pthread_key_t key)
-{
-  if (pthread_key_delete(key) != 0) {
-    dmnsn_warning("Couldn't destroy thread-specific pointer.");
-  }
-}
-
-void
-dmnsn_join_thread(pthread_t thread, void **retval)
-{
-  if (pthread_join(thread, retval) != 0) {
-    dmnsn_error("Couldn't join thread.");
-  }
-}