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/*
* libusbx 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 usbi_mutex_static_t volatile LONG
#define USBI_MUTEX_INITIALIZER 0
#define usbi_mutex_t HANDLE
struct usbi_cond_perthread {
struct list_head list;
DWORD tid;
HANDLE event;
};
struct usbi_cond_t_ {
// Every time a thread touches the CV, it winds up in one of these lists.
// It stays there until the CV is destroyed, even if the thread
// terminates.
struct list_head waiters;
struct list_head not_waiting;
};
typedef struct usbi_cond_t_ usbi_cond_t;
// We *were* getting timespec from pthread.h:
#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 */
// We *were* getting ETIMEDOUT from pthread.h:
#ifndef ETIMEDOUT
# define ETIMEDOUT 10060 /* This is the value in winsock.h. */
#endif
#define usbi_mutexattr_t void
#define usbi_condattr_t void
// all Windows mutexes are recursive
#define usbi_mutex_init_recursive(mutex, attr) usbi_mutex_init((mutex), (attr))
int usbi_mutex_static_lock(usbi_mutex_static_t *mutex);
int usbi_mutex_static_unlock(usbi_mutex_static_t *mutex);
int usbi_mutex_init(usbi_mutex_t *mutex,
const usbi_mutexattr_t *attr);
int usbi_mutex_lock(usbi_mutex_t *mutex);
int usbi_mutex_unlock(usbi_mutex_t *mutex);
int usbi_mutex_trylock(usbi_mutex_t *mutex);
int usbi_mutex_destroy(usbi_mutex_t *mutex);
int usbi_cond_init(usbi_cond_t *cond,
const usbi_condattr_t *attr);
int usbi_cond_destroy(usbi_cond_t *cond);
int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex);
int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex,
const struct timespec *abstime);
int usbi_cond_broadcast(usbi_cond_t *cond);
int usbi_cond_signal(usbi_cond_t *cond);
int usbi_get_tid(void);
#endif /* LIBUSB_THREADS_WINDOWS_H */
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