diff options
Diffstat (limited to 'src/os/threads_windows.c')
-rw-r--r-- | src/os/threads_windows.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/os/threads_windows.c b/src/os/threads_windows.c new file mode 100644 index 0000000..4a57f42 --- /dev/null +++ b/src/os/threads_windows.c @@ -0,0 +1,40 @@ +/* + * libusb synchronization on Microsoft Windows + * + * Copyright © 2010 Michael Plante <michael.plante@gmail.com> + * Copyright © 2020 Chris Dickens <christopher.a.dickens@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 + */ + +#include "libusbi.h" + +int usbi_cond_timedwait(usbi_cond_t *cond, + usbi_mutex_t *mutex, const struct timeval *tv) +{ + DWORD millis; + + millis = (DWORD)(tv->tv_sec * 1000L) + (tv->tv_usec / 1000L); + /* round up to next millisecond */ + if (tv->tv_usec % 1000L) + millis++; + + if (SleepConditionVariableCS(cond, mutex, millis)) + return 0; + else if (GetLastError() == ERROR_TIMEOUT) + return LIBUSB_ERROR_TIMEOUT; + else + return LIBUSB_ERROR_OTHER; +} |