Initial

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;
+}