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ca061993ef
1. Refactor osal cpp files to c. 2. Update osal license to Apache-2.0 OR MIT. 3. Remove windows support. Signed-off-by: Herman Chen <herman.chen@rock-chips.com> Change-Id: Ic5545d861676880f7a6247515404d585cd4fcef5
62 lines
1.0 KiB
C
62 lines
1.0 KiB
C
/* SPDX-License-Identifier: Apache-2.0 OR MIT */
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/*
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* Copyright (c) 2015 Rockchip Electronics Co., Ltd.
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*/
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#include <unistd.h>
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#include <errno.h>
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#include <poll.h>
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#include <sys/eventfd.h>
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#include "mpp_eventfd.h"
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RK_S32 mpp_eventfd_get(RK_U32 init)
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{
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RK_S32 fd = eventfd(init, 0);
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if (fd < 0)
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fd = errno;
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return fd;
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}
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RK_S32 mpp_eventfd_put(RK_S32 fd)
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{
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if (fd >= 0)
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close(fd);
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return 0;
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}
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RK_S32 mpp_eventfd_read(RK_S32 fd, RK_U64 *val, RK_S64 timeout)
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{
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struct pollfd nfds;
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RK_U64 tmp = 0;
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RK_S32 ret = 0;
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if (NULL == val)
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val = &tmp;
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nfds.fd = fd;
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nfds.events = POLLIN;
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ret = poll(&nfds, 1, timeout);
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if (ret == 1 && (nfds.revents & POLLIN) &&
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sizeof(RK_U64) == read(fd, val, sizeof(RK_U64))) {
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ret = 0;
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} else
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ret = errno;
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return ret;
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}
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RK_S32 mpp_eventfd_write(RK_S32 fd, RK_U64 val)
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{
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RK_S32 ret = 0;
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if (sizeof(RK_U64) != write(fd, &val, sizeof(val)))
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ret = errno;
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return ret;
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}
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