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89 lines
2.8 KiB
89 lines
2.8 KiB
11 years ago
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/*
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* libusb synchronization on Microsoft Windows
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*
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* Copyright (C) 2010 Michael Plante <michael.plante@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef LIBUSB_THREADS_WINDOWS_H
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#define LIBUSB_THREADS_WINDOWS_H
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#include <windows.h>
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#define usbi_mutex_static_t volatile LONG
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#define USBI_MUTEX_INITIALIZER 0
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#define usbi_mutex_t HANDLE
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struct usbi_cond_perthread {
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struct list_head list;
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DWORD tid;
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HANDLE event;
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};
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struct usbi_cond_t_ {
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// Every time a thread touches the CV, it winds up in one of these lists.
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// It stays there until the CV is destroyed, even if the thread
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// terminates.
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struct list_head waiters;
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struct list_head not_waiting;
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};
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typedef struct usbi_cond_t_ usbi_cond_t;
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// We *were* getting timespec from pthread.h:
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#if (!defined(HAVE_STRUCT_TIMESPEC) && !defined(_TIMESPEC_DEFINED))
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#define HAVE_STRUCT_TIMESPEC 1
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#define _TIMESPEC_DEFINED 1
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struct timespec {
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long tv_sec;
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long tv_nsec;
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};
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#endif /* HAVE_STRUCT_TIMESPEC | _TIMESPEC_DEFINED */
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// We *were* getting ETIMEDOUT from pthread.h:
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#ifndef ETIMEDOUT
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# define ETIMEDOUT 10060 /* This is the value in winsock.h. */
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#endif
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#define usbi_mutexattr_t void
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#define usbi_condattr_t void
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// all Windows mutexes are recursive
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#define usbi_mutex_init_recursive(mutex, attr) usbi_mutex_init((mutex), (attr))
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int usbi_mutex_static_lock(usbi_mutex_static_t *mutex);
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int usbi_mutex_static_unlock(usbi_mutex_static_t *mutex);
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int usbi_mutex_init(usbi_mutex_t *mutex,
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const usbi_mutexattr_t *attr);
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int usbi_mutex_lock(usbi_mutex_t *mutex);
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int usbi_mutex_unlock(usbi_mutex_t *mutex);
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int usbi_mutex_trylock(usbi_mutex_t *mutex);
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int usbi_mutex_destroy(usbi_mutex_t *mutex);
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int usbi_cond_init(usbi_cond_t *cond,
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const usbi_condattr_t *attr);
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int usbi_cond_destroy(usbi_cond_t *cond);
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int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex);
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int usbi_cond_timedwait(usbi_cond_t *cond,
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usbi_mutex_t *mutex,
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const struct timespec *abstime);
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int usbi_cond_broadcast(usbi_cond_t *cond);
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int usbi_cond_signal(usbi_cond_t *cond);
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#endif /* LIBUSB_THREADS_WINDOWS_H */
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