add plibsys

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);
+}