/usr/lib/erlang/erts-7.3/include/internal/win/ethr_event.h is in erlang-dev 1:18.3-dfsg-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | /*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2009-2011. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
* Author: Rickard Green
*/
#define ETHR_EVENT_OFF_WAITER__ ((ethr_sint32_t) -1)
#define ETHR_EVENT_OFF__ ((ethr_sint32_t) 1)
#define ETHR_EVENT_ON__ ((ethr_sint32_t) 0)
typedef struct {
ethr_atomic32_t state;
HANDLE handle;
} ethr_event;
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_EVENT_IMPL__)
#pragma intrinsic(_InterlockedExchange)
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_event_set)(ethr_event *e)
{
/* _InterlockedExchange() imply a full memory barrier which is important */
ethr_sint32_t state = ethr_atomic32_xchg_wb(&e->state, ETHR_EVENT_ON__);
if (state == ETHR_EVENT_OFF_WAITER__) {
if (!SetEvent(e->handle))
ETHR_FATAL_ERROR__(ethr_win_get_errno__());
}
}
static ETHR_INLINE void
ETHR_INLINE_FUNC_NAME_(ethr_event_reset)(ethr_event *e)
{
ethr_atomic32_set(&e->state, ETHR_EVENT_OFF__);
ETHR_MEMORY_BARRIER;
}
#endif
int ethr_event_init(ethr_event *e);
int ethr_event_prepare_timed(ethr_event *e);
int ethr_event_destroy(ethr_event *e);
int ethr_event_wait(ethr_event *e);
int ethr_event_swait(ethr_event *e, int spincount);
int ethr_event_twait(ethr_event *e, ethr_sint64_t timeout);
int ethr_event_stwait(ethr_event *e, int spincount, ethr_sint64_t timeout);
#if !defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_EVENT_IMPL__)
void ethr_event_set(ethr_event *e);
void ethr_event_reset(ethr_event *e);
#endif
|