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author | JackLivio <jack@livio.io> | 2018-02-02 17:55:53 -0500 |
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committer | GitHub <noreply@github.com> | 2018-02-02 17:55:53 -0500 |
commit | 31c06e498ca99e45ffe37799ee03109e0877f416 (patch) | |
tree | 00c1a6f82345c53e4facd9b0554bc25c1607102a /src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c | |
parent | 74ccd312dfff41736f7b8c93bcd8813146d76457 (diff) | |
parent | 1087cfe152f8f4ce27383c8f96fcdf1f2e94266a (diff) | |
download | sdl_core-31c06e498ca99e45ffe37799ee03109e0877f416.tar.gz |
Merge branch 'develop' into feature/boost_websocket_hmi_message_adapterfeature/boost_websocket_hmi_message_adapter
Diffstat (limited to 'src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c')
-rw-r--r-- | src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c b/src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c deleted file mode 100644 index cad27e9ea0..0000000000 --- a/src/3rd_party-static/libusbx-1.0.16/libusb/os/threads_windows.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * 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 - */ - -#include <config.h> -#include <objbase.h> -#include <errno.h> -#include <stdarg.h> - -#include "libusbi.h" - -extern const uint64_t epoch_time; - -int usbi_mutex_init(usbi_mutex_t *mutex, - const usbi_mutexattr_t *attr) { - UNUSED(attr); - if(! mutex) return ((errno=EINVAL)); - *mutex = CreateMutex(NULL, FALSE, NULL); - if(!*mutex) return ((errno=ENOMEM)); - return 0; -} -int usbi_mutex_destroy(usbi_mutex_t *mutex) { - // It is not clear if CloseHandle failure is due to failure to unlock. - // If so, this should be errno=EBUSY. - if(!mutex || !CloseHandle(*mutex)) return ((errno=EINVAL)); - *mutex = NULL; - return 0; -} -int usbi_mutex_trylock(usbi_mutex_t *mutex) { - DWORD result; - if(!mutex) return ((errno=EINVAL)); - result = WaitForSingleObject(*mutex, 0); - if(result == WAIT_OBJECT_0 || result == WAIT_ABANDONED) - return 0; // acquired (ToDo: check that abandoned is ok) - if(result == WAIT_TIMEOUT) - return ((errno=EBUSY)); - return ((errno=EINVAL)); // don't know how this would happen - // so don't know proper errno -} -int usbi_mutex_lock(usbi_mutex_t *mutex) { - DWORD result; - if(!mutex) return ((errno=EINVAL)); - result = WaitForSingleObject(*mutex, INFINITE); - if(result == WAIT_OBJECT_0 || result == WAIT_ABANDONED) - return 0; // acquired (ToDo: check that abandoned is ok) - return ((errno=EINVAL)); // don't know how this would happen - // so don't know proper errno -} -int usbi_mutex_unlock(usbi_mutex_t *mutex) { - if(!mutex) return ((errno=EINVAL)); - if(!ReleaseMutex(*mutex)) return ((errno=EPERM )); - return 0; -} - -int usbi_mutex_static_lock(usbi_mutex_static_t *mutex) { - if(!mutex) return ((errno=EINVAL)); - while (InterlockedExchange((LONG *)mutex, 1) == 1) { - SleepEx(0, TRUE); - } - return 0; -} -int usbi_mutex_static_unlock(usbi_mutex_static_t *mutex) { - if(!mutex) return ((errno=EINVAL)); - *mutex = 0; - return 0; -} - -int usbi_cond_init(usbi_cond_t *cond, - const usbi_condattr_t *attr) { - UNUSED(attr); - if(!cond) return ((errno=EINVAL)); - list_init(&cond->waiters ); - list_init(&cond->not_waiting); - return 0; -} -int 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_pos = NULL; - if(!cond) return ((errno=EINVAL)); - if(!list_empty(&cond->waiters)) return ((errno=EBUSY )); // (!see above!) - list_for_each_entry_safe(pos, next_pos, &cond->not_waiting, list, struct usbi_cond_perthread) { - CloseHandle(pos->event); - list_del(&pos->list); - free(pos); - } - - return 0; -} - -int 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! - int fail = 0; - struct usbi_cond_perthread *pos; - if(!cond) return ((errno=EINVAL)); - list_for_each_entry(pos, &cond->waiters, list, struct usbi_cond_perthread) { - if(!SetEvent(pos->event)) - fail = 1; - } - // The wait function will remove its respective item from the list. - return fail ? ((errno=EINVAL)) : 0; -} -int usbi_cond_signal(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; - if(!cond) return ((errno=EINVAL)); - if(list_empty(&cond->waiters)) return 0; // no one to wakeup. - pos = list_entry(&cond->waiters.next, struct usbi_cond_perthread, list); - // The wait function will remove its respective item from the list. - return SetEvent(pos->event) ? 0 : ((errno=EINVAL)); -} -__inline static int usbi_cond_intwait(usbi_cond_t *cond, - usbi_mutex_t *mutex, - DWORD timeout_ms) { - struct usbi_cond_perthread *pos; - int found = 0, r; - DWORD r2,tid = GetCurrentThreadId(); - if(!cond || !mutex) return ((errno=EINVAL)); - list_for_each_entry(pos, &cond->not_waiting, list, struct usbi_cond_perthread) { - if(tid == pos->tid) { - found = 1; - break; - } - } - if(!found) { - pos = (struct usbi_cond_perthread*) calloc(1, sizeof(struct usbi_cond_perthread)); - if(!pos) return ((errno=ENOMEM)); // This errno is not POSIX-allowed. - pos->tid = tid; - pos->event = CreateEvent(NULL, FALSE, FALSE, NULL); // auto-reset. - if(!pos->event) { - free(pos); - return ((errno=ENOMEM)); - } - list_add(&pos->list, &cond->not_waiting); - } - - list_del(&pos->list); // remove from not_waiting list. - list_add(&pos->list, &cond->waiters); - - r = usbi_mutex_unlock(mutex); - if(r) return r; - r2 = WaitForSingleObject(pos->event, timeout_ms); - r = usbi_mutex_lock(mutex); - if(r) return r; - - list_del(&pos->list); - list_add(&pos->list, &cond->not_waiting); - - if(r2 == WAIT_TIMEOUT) return ((errno=ETIMEDOUT)); - - return 0; -} -// 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 timespec *abstime) { - FILETIME filetime; - ULARGE_INTEGER rtime; - struct timeval targ_time, cur_time, delta_time; - struct timespec cur_time_ns; - DWORD millis; - - // GetSystemTimeAsFileTime() is not available on CE - SYSTEMTIME st; - GetSystemTime(&st); - SystemTimeToFileTime(&st, &filetime); - rtime.LowPart = filetime.dwLowDateTime; - rtime.HighPart = filetime.dwHighDateTime; - rtime.QuadPart -= epoch_time; - cur_time_ns.tv_sec = (long)(rtime.QuadPart / 10000000); - cur_time_ns.tv_nsec = (long)((rtime.QuadPart % 10000000)*100); - TIMESPEC_TO_TIMEVAL(&cur_time, &cur_time_ns); - - TIMESPEC_TO_TIMEVAL(&targ_time, abstime); - timersub(&targ_time, &cur_time, &delta_time); - if(delta_time.tv_sec < 0) // abstime already passed? - millis = 0; - else { - millis = delta_time.tv_usec/1000; - millis += delta_time.tv_sec *1000; - if (delta_time.tv_usec % 1000) // round up to next millisecond - millis++; - } - - return usbi_cond_intwait(cond, mutex, millis); -} - -int usbi_get_tid(void) { - return GetCurrentThreadId(); -} |