Remove unused code

[rtmpclient.git] / app / src / main / jni / libusb-1.0.22 / libusb / os / threads_windows.c

diff --git a/app/src/main/jni/libusb-1.0.22/libusb/os/threads_windows.c b/app/src/main/jni/libusb-1.0.22/libusb/os/threads_windows.c
deleted file mode 100644 (file)
index 409c490..0000000
--- a/app/src/main/jni/libusb-1.0.22/libusb/os/threads_windows.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * 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
- */
-
-#include <config.h>
-
-#include <errno.h>
-
-#include "libusbi.h"
-
-struct usbi_cond_perthread {
-       struct list_head list;
-       HANDLE event;
-};
-
-void usbi_mutex_static_lock(usbi_mutex_static_t *mutex)
-{
-       while (InterlockedExchange(mutex, 1L) == 1L)
-               SleepEx(0, TRUE);
-}
-
-void usbi_cond_init(usbi_cond_t *cond)
-{
-       list_init(&cond->waiters);
-       list_init(&cond->not_waiting);
-}
-
-static int usbi_cond_intwait(usbi_cond_t *cond,
-       usbi_mutex_t *mutex, DWORD timeout_ms)
-{
-       struct usbi_cond_perthread *pos;
-       DWORD r;
-
-       // Same assumption as usbi_cond_broadcast() holds
-       if (list_empty(&cond->not_waiting)) {
-               pos = malloc(sizeof(*pos));
-               if (pos == NULL)
-                       return ENOMEM; // This errno is not POSIX-allowed.
-               pos->event = CreateEvent(NULL, FALSE, FALSE, NULL); // auto-reset.
-               if (pos->event == NULL) {
-                       free(pos);
-                       return ENOMEM;
-               }
-       } else {
-               pos = list_first_entry(&cond->not_waiting, struct usbi_cond_perthread, list);
-               list_del(&pos->list); // remove from not_waiting list.
-               // Ensure the event is clear before waiting
-               WaitForSingleObject(pos->event, 0);
-       }
-
-       list_add(&pos->list, &cond->waiters);
-
-       LeaveCriticalSection(mutex);
-       r = WaitForSingleObject(pos->event, timeout_ms);
-       EnterCriticalSection(mutex);
-
-       list_del(&pos->list);
-       list_add(&pos->list, &cond->not_waiting);
-
-       if (r == WAIT_OBJECT_0)
-               return 0;
-       else if (r == WAIT_TIMEOUT)
-               return ETIMEDOUT;
-       else
-               return EINVAL;
-}
-
-// N.B.: usbi_cond_*wait() can also return ENOMEM, even though pthread_cond_*wait cannot!
-int usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex)
-{
-       return usbi_cond_intwait(cond, mutex, INFINITE);
-}
-
-int usbi_cond_timedwait(usbi_cond_t *cond,
-       usbi_mutex_t *mutex, const struct timeval *tv)
-{
-       DWORD millis;
-
-       millis = (DWORD)(tv->tv_sec * 1000) + (tv->tv_usec / 1000);
-       /* round up to next millisecond */
-       if (tv->tv_usec % 1000)
-               millis++;
-       return usbi_cond_intwait(cond, mutex, millis);
-}
-
-void usbi_cond_broadcast(usbi_cond_t *cond)
-{
-       // Assumes mutex is locked; this is not in keeping with POSIX spec, but
-       //   libusb does this anyway, so we simplify by not adding more sync
-       //   primitives to the CV definition!
-       struct usbi_cond_perthread *pos;
-
-       list_for_each_entry(pos, &cond->waiters, list, struct usbi_cond_perthread)
-               SetEvent(pos->event);
-       // The wait function will remove its respective item from the list.
-}
-
-void usbi_cond_destroy(usbi_cond_t *cond)
-{
-       // This assumes no one is using this anymore.  The check MAY NOT BE safe.
-       struct usbi_cond_perthread *pos, *next;
-
-       if (!list_empty(&cond->waiters))
-               return; // (!see above!)
-       list_for_each_entry_safe(pos, next, &cond->not_waiting, list, struct usbi_cond_perthread) {
-               CloseHandle(pos->event);
-               list_del(&pos->list);
-               free(pos);
-       }
-}