summaryrefslogtreecommitdiff
path: root/3rdparty/plibsys/src/puthread-beos.c
diff options
context:
space:
mode:
authorsanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
committersanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
commita4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 (patch)
tree13bd5bfa15e6fea2a12f176bae79adf9c6fd0933 /3rdparty/plibsys/src/puthread-beos.c
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
Diffstat (limited to '3rdparty/plibsys/src/puthread-beos.c')
-rw-r--r--3rdparty/plibsys/src/puthread-beos.c431
1 files changed, 431 insertions, 0 deletions
diff --git a/3rdparty/plibsys/src/puthread-beos.c b/3rdparty/plibsys/src/puthread-beos.c
new file mode 100644
index 0000000..1f49747
--- /dev/null
+++ b/3rdparty/plibsys/src/puthread-beos.c
@@ -0,0 +1,431 @@
+/*
+ * The MIT License
+ *
+ * Copyright (C) 2016-2019 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "pmem.h"
+#include "patomic.h"
+#include "pmutex.h"
+#include "puthread.h"
+#include "puthread-private.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <kernel/OS.h>
+#include <kernel/scheduler.h>
+#include <support/TLS.h>
+
+typedef thread_id puthread_hdl;
+
+struct PUThread_ {
+ PUThreadBase base;
+ puthread_hdl hdl;
+ PUThreadFunc proxy;
+};
+
+struct PUThreadKey_ {
+ pint key;
+ PDestroyFunc free_func;
+};
+
+typedef struct PUThreadDestructor_ PUThreadDestructor;
+
+struct PUThreadDestructor_ {
+ pint key_idx;
+ PDestroyFunc free_func;
+ PUThreadDestructor *next;
+};
+
+static PUThreadDestructor * volatile pp_uthread_tls_destructors = NULL;
+
+static PMutex *pp_uthread_tls_mutex = NULL;
+
+static pint pp_uthread_get_beos_priority (PUThreadPriority prio);
+static pint pp_uthread_get_tls_key (PUThreadKey *key);
+static void pp_uthread_clean_destructors (void);
+static pint pp_uthread_beos_proxy (ppointer data);
+
+static pint
+pp_uthread_get_beos_priority (PUThreadPriority prio)
+{
+ switch (prio) {
+ case P_UTHREAD_PRIORITY_INHERIT:
+ {
+ thread_info thr_info;
+
+ memset (&thr_info, 0, sizeof (thr_info));
+
+ if (P_UNLIKELY (get_thread_info (find_thread (NULL), &thr_info) != B_OK)) {
+ P_WARNING ("PUThread::pp_uthread_get_beos_priority: failed to get thread info");
+ return B_NORMAL_PRIORITY;
+ } else
+ return thr_info.priority;
+ }
+
+ case P_UTHREAD_PRIORITY_IDLE:
+ return B_LOW_PRIORITY;
+ case P_UTHREAD_PRIORITY_LOWEST:
+ return B_NORMAL_PRIORITY / 4;
+ case P_UTHREAD_PRIORITY_LOW:
+ return B_NORMAL_PRIORITY / 2;
+ case P_UTHREAD_PRIORITY_NORMAL:
+ return B_NORMAL_PRIORITY;
+ case P_UTHREAD_PRIORITY_HIGH:
+ return B_DISPLAY_PRIORITY;
+ case P_UTHREAD_PRIORITY_HIGHEST:
+ return B_URGENT_DISPLAY_PRIORITY;
+ case P_UTHREAD_PRIORITY_TIMECRITICAL:
+ return B_REAL_TIME_PRIORITY;
+ }
+}
+
+static pint
+pp_uthread_get_tls_key (PUThreadKey *key)
+{
+ pint thread_key;
+
+ thread_key = p_atomic_int_get ((const volatile pint *) &key->key);
+
+ if (P_LIKELY (thread_key >= 0))
+ return thread_key;
+
+ p_mutex_lock (pp_uthread_tls_mutex);
+
+ thread_key = key->key;
+
+ if (P_LIKELY (thread_key == -1)) {
+ PUThreadDestructor *destr = NULL;
+
+ if (key->free_func != NULL) {
+ if (P_UNLIKELY ((destr = p_malloc0 (sizeof (PUThreadDestructor))) == NULL)) {
+ P_ERROR ("PUThread::pp_uthread_get_tls_key: failed to allocate memory");
+ p_mutex_unlock (pp_uthread_tls_mutex);
+ return -1;
+ }
+ }
+
+ if (P_UNLIKELY ((thread_key = tls_allocate ()) < 0)) {
+ P_ERROR ("PUThread::pp_uthread_get_tls_key: tls_allocate() failed");
+ p_free (destr);
+ p_mutex_unlock (pp_uthread_tls_mutex);
+ return -1;
+ }
+
+ if (destr != NULL) {
+ destr->key_idx = thread_key;
+ destr->free_func = key->free_func;
+ destr->next = pp_uthread_tls_destructors;
+
+ /* At the same time thread exit could be performed at there is no
+ * lock for the global destructor list */
+ if (P_UNLIKELY (p_atomic_pointer_compare_and_exchange ((void * volatile *) &pp_uthread_tls_destructors,
+ (void *) destr->next,
+ (void *) destr) == FALSE)) {
+ P_ERROR ("PUThread::pp_uthread_get_tls_key: p_atomic_pointer_compare_and_exchange() failed");
+ p_free (destr);
+ p_mutex_unlock (pp_uthread_tls_mutex);
+ return -1;
+ }
+ }
+
+ key->key = thread_key;
+ }
+
+ p_mutex_unlock (pp_uthread_tls_mutex);
+
+ return thread_key;
+}
+
+static void
+pp_uthread_clean_destructors (void)
+{
+ pboolean was_called;
+
+ do {
+ PUThreadDestructor *destr;
+
+ was_called = FALSE;
+
+ destr = (PUThreadDestructor *) p_atomic_pointer_get ((const void * volatile *) &pp_uthread_tls_destructors);
+
+ while (destr != NULL) {
+ ppointer value;
+
+ value = tls_get (destr->key_idx);
+
+ if (value != NULL && destr->free_func != NULL) {
+ tls_set (destr->key_idx, NULL);
+ destr->free_func (value);
+ was_called = TRUE;
+ }
+
+ destr = destr->next;
+ }
+ } while (was_called);
+}
+
+static pint
+pp_uthread_beos_proxy (ppointer data)
+{
+ PUThread *thread = data;
+
+ thread->proxy (thread);
+
+ pp_uthread_clean_destructors ();
+
+ return 0;
+}
+
+void
+p_uthread_init_internal (void)
+{
+ if (P_LIKELY (pp_uthread_tls_mutex == NULL))
+ pp_uthread_tls_mutex = p_mutex_new ();
+}
+
+void
+p_uthread_shutdown_internal (void)
+{
+ PUThreadDestructor *destr;
+
+ pp_uthread_clean_destructors ();
+
+ destr = pp_uthread_tls_destructors;
+
+ while (destr != NULL) {
+ PUThreadDestructor *next_destr = destr->next;
+
+ p_free (destr);
+ destr = next_destr;
+ }
+
+ pp_uthread_tls_destructors = NULL;
+
+ if (P_LIKELY (pp_uthread_tls_mutex != NULL)) {
+ p_mutex_free (pp_uthread_tls_mutex);
+ pp_uthread_tls_mutex = NULL;
+ }
+}
+
+void
+p_uthread_win32_thread_detach (void)
+{
+}
+
+PUThread *
+p_uthread_create_internal (PUThreadFunc func,
+ pboolean joinable,
+ PUThreadPriority prio,
+ psize stack_size)
+{
+ PUThread *ret;
+
+ P_UNUSED (stack_size);
+
+ if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PUThread))) == NULL)) {
+ P_ERROR ("PUThread::p_uthread_create_internal: failed to allocate memory");
+ return NULL;
+ }
+
+ ret->proxy = func;
+
+ if (P_UNLIKELY ((ret->hdl = spawn_thread ((thread_func) pp_uthread_beos_proxy,
+ "",
+ pp_uthread_get_beos_priority (prio),
+ ret)) < B_OK)) {
+ P_ERROR ("PUThread::p_uthread_create_internal: spawn_thread() failed");
+ p_free (ret);
+ return NULL;
+ }
+
+ if (P_UNLIKELY (resume_thread (ret->hdl) != B_OK)) {
+ P_ERROR ("PUThread::p_uthread_create_internal: resume_thread() failed");
+ p_free (ret);
+ return NULL;
+ }
+
+ ret->base.joinable = joinable;
+ ret->base.prio = prio;
+
+ return ret;
+}
+
+void
+p_uthread_exit_internal (void)
+{
+ pp_uthread_clean_destructors ();
+ exit_thread (0);
+}
+
+void
+p_uthread_wait_internal (PUThread *thread)
+{
+ status_t exit_value;
+
+ wait_for_thread (thread->hdl, &exit_value);
+}
+
+void
+p_uthread_set_name_internal (PUThread *thread)
+{
+ pchar *thr_name = NULL;
+ psize namelen = 0;
+ pint res = 0;
+ pboolean is_alloc = FALSE;
+
+ thr_name = thread->base.name;
+ namelen = strlen (thr_name);
+
+ if (namelen > B_OS_NAME_LENGTH - 1) {
+ if (P_UNLIKELY ((thr_name = p_malloc0 (namelen + 1)) == NULL)) {
+ P_ERROR ("PUThread::p_uthread_set_name_internal: failed to allocate memory");
+ return;
+ }
+
+ memcpy (thr_name, thread->base.name, B_OS_NAME_LENGTH - 1);
+
+ is_alloc = TRUE;
+ }
+
+ if (rename_thread (thread->hdl, thr_name) != 0)
+ P_WARNING ("PUThread::p_uthread_set_name_internal: failed to set thread system name");
+
+ if (is_alloc == TRUE)
+ p_free (thr_name);
+}
+
+void
+p_uthread_free_internal (PUThread *thread)
+{
+ p_free (thread);
+}
+
+P_LIB_API void
+p_uthread_yield (void)
+{
+ snooze ((bigtime_t) 0);
+}
+
+P_LIB_API pboolean
+p_uthread_set_priority (PUThread *thread,
+ PUThreadPriority prio)
+{
+ if (P_UNLIKELY (thread == NULL))
+ return FALSE;
+
+ if (set_thread_priority (thread->hdl, pp_uthread_get_beos_priority (prio)) < B_OK) {
+ P_ERROR ("PUThread::p_uthread_create_internal: set_thread_priority() failed");
+ return FALSE;
+ }
+
+ thread->base.prio = prio;
+
+ return TRUE;
+}
+
+P_LIB_API P_HANDLE
+p_uthread_current_id (void)
+{
+ return (P_HANDLE) ((psize) find_thread (NULL));
+}
+
+P_LIB_API PUThreadKey *
+p_uthread_local_new (PDestroyFunc free_func)
+{
+ PUThreadKey *ret;
+
+ if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PUThreadKey))) == NULL)) {
+ P_ERROR ("PUThread::p_uthread_local_new: failed to allocate memory");
+ return NULL;
+ }
+
+ ret->key = -1;
+ ret->free_func = free_func;
+
+ return ret;
+}
+
+P_LIB_API void
+p_uthread_local_free (PUThreadKey *key)
+{
+ if (P_UNLIKELY (key == NULL))
+ return;
+
+ p_free (key);
+}
+
+P_LIB_API ppointer
+p_uthread_get_local (PUThreadKey *key)
+{
+ pint tls_key;
+
+ if (P_UNLIKELY (key == NULL))
+ return NULL;
+
+ tls_key = pp_uthread_get_tls_key (key);
+
+ if (P_LIKELY (tls_key >= 0))
+ return tls_get (tls_key);
+
+ return NULL;
+}
+
+P_LIB_API void
+p_uthread_set_local (PUThreadKey *key,
+ ppointer value)
+{
+ pint tls_key;
+
+ if (P_UNLIKELY (key == NULL))
+ return;
+
+ tls_key = pp_uthread_get_tls_key (key);
+
+ if (tls_key >= 0)
+ tls_set (tls_key, value);
+}
+
+P_LIB_API void
+p_uthread_replace_local (PUThreadKey *key,
+ ppointer value)
+{
+ pint tls_key;
+ ppointer old_value;
+
+ if (P_UNLIKELY (key == NULL))
+ return;
+
+ tls_key = pp_uthread_get_tls_key (key);
+
+ if (P_UNLIKELY (tls_key < 0))
+ return;
+
+ old_value = tls_get (tls_key);
+
+ if (old_value != NULL && key->free_func != NULL)
+ key->free_func (old_value);
+
+ tls_set (tls_key, value);
+}