From 3d7c48a6e5c5c532cdd66b3ba5a8c5911bcf2383 Mon Sep 17 00:00:00 2001
From: ZoRo <dos21h@gmail.com>
Date: Sat, 19 Feb 2022 12:47:26 +0000
Subject: Initial

---
 src/os/threads_windows.h | 113 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 src/os/threads_windows.h

(limited to 'src/os/threads_windows.h')

diff --git a/src/os/threads_windows.h b/src/os/threads_windows.h
new file mode 100644
index 0000000..dfef158
--- /dev/null
+++ b/src/os/threads_windows.h
@@ -0,0 +1,113 @@
+/*
+ * libusb synchronization on Microsoft Windows
+ *
+ * Copyright © 2010 Michael Plante <michael.plante@gmail.com>
+ *
+ * This 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This 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 library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBUSB_THREADS_WINDOWS_H
+#define LIBUSB_THREADS_WINDOWS_H
+
+#define WINAPI_CHECK(expression)	ASSERT_NE(expression, 0)
+
+#define USBI_MUTEX_INITIALIZER	0L
+typedef LONG usbi_mutex_static_t;
+static inline void usbi_mutex_static_lock(usbi_mutex_static_t *mutex)
+{
+	while (InterlockedExchange(mutex, 1L) == 1L)
+		SleepEx(0, TRUE);
+}
+static inline void usbi_mutex_static_unlock(usbi_mutex_static_t *mutex)
+{
+	InterlockedExchange(mutex, 0L);
+}
+
+typedef CRITICAL_SECTION usbi_mutex_t;
+static inline void usbi_mutex_init(usbi_mutex_t *mutex)
+{
+	InitializeCriticalSection(mutex);
+}
+static inline void usbi_mutex_lock(usbi_mutex_t *mutex)
+{
+	EnterCriticalSection(mutex);
+}
+static inline void usbi_mutex_unlock(usbi_mutex_t *mutex)
+{
+	LeaveCriticalSection(mutex);
+}
+static inline int usbi_mutex_trylock(usbi_mutex_t *mutex)
+{
+	return TryEnterCriticalSection(mutex) != 0;
+}
+static inline void usbi_mutex_destroy(usbi_mutex_t *mutex)
+{
+	DeleteCriticalSection(mutex);
+}
+
+#if !defined(HAVE_STRUCT_TIMESPEC) && !defined(_TIMESPEC_DEFINED)
+#define HAVE_STRUCT_TIMESPEC 1
+#define _TIMESPEC_DEFINED 1
+struct timespec {
+	long tv_sec;
+	long tv_nsec;
+};
+#endif /* HAVE_STRUCT_TIMESPEC || _TIMESPEC_DEFINED */
+
+typedef CONDITION_VARIABLE usbi_cond_t;
+static inline void usbi_cond_init(usbi_cond_t *cond)
+{
+	InitializeConditionVariable(cond);
+}
+static inline void usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex)
+{
+	WINAPI_CHECK(SleepConditionVariableCS(cond, mutex, INFINITE));
+}
+int usbi_cond_timedwait(usbi_cond_t *cond,
+	usbi_mutex_t *mutex, const struct timeval *tv);
+static inline void usbi_cond_broadcast(usbi_cond_t *cond)
+{
+	WakeAllConditionVariable(cond);
+}
+static inline void usbi_cond_destroy(usbi_cond_t *cond)
+{
+	UNUSED(cond);
+}
+
+typedef DWORD usbi_tls_key_t;
+static inline void usbi_tls_key_create(usbi_tls_key_t *key)
+{
+	*key = TlsAlloc();
+	assert(*key != TLS_OUT_OF_INDEXES);
+}
+static inline void *usbi_tls_key_get(usbi_tls_key_t key)
+{
+	return TlsGetValue(key);
+}
+static inline void usbi_tls_key_set(usbi_tls_key_t key, void *ptr)
+{
+	WINAPI_CHECK(TlsSetValue(key, ptr));
+}
+static inline void usbi_tls_key_delete(usbi_tls_key_t key)
+{
+	WINAPI_CHECK(TlsFree(key));
+}
+
+static inline unsigned int usbi_get_tid(void)
+{
+	return (unsigned int)GetCurrentThreadId();
+}
+
+#endif /* LIBUSB_THREADS_WINDOWS_H */
-- 
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