moved all files to the top-level
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182
lib/hio-thr.h
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182
lib/hio-thr.h
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/*
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Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted thrvided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must rethrduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials thrvided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _HIO_THR_H_
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#define _HIO_THR_H_
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#include <hio.h>
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enum hio_dev_thr_sid_t
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{
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HIO_DEV_THR_MASTER = -1, /* no io occurs on this. used only in on_close() */
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HIO_DEV_THR_IN = 0, /* input to the thread */
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HIO_DEV_THR_OUT = 1, /* output from the thread */
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};
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typedef enum hio_dev_thr_sid_t hio_dev_thr_sid_t;
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typedef struct hio_dev_thr_t hio_dev_thr_t;
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typedef struct hio_dev_thr_slave_t hio_dev_thr_slave_t;
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typedef int (*hio_dev_thr_on_read_t) (
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hio_dev_thr_t* dev,
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const void* data,
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hio_iolen_t len
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);
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typedef int (*hio_dev_thr_on_write_t) (
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hio_dev_thr_t* dev,
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hio_iolen_t wrlen,
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void* wrctx
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);
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typedef void (*hio_dev_thr_on_close_t) (
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hio_dev_thr_t* dev,
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hio_dev_thr_sid_t sid
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);
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struct hio_dev_thr_iopair_t
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{
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hio_syshnd_t rfd;
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hio_syshnd_t wfd;
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};
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typedef struct hio_dev_thr_iopair_t hio_dev_thr_iopair_t;
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typedef void (*hio_dev_thr_func_t) (
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hio_t* hio,
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hio_dev_thr_iopair_t* iop,
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void* ctx
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);
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typedef struct hio_dev_thr_info_t hio_dev_thr_info_t;
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struct hio_dev_thr_t
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{
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HIO_DEV_HEADER;
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hio_dev_thr_slave_t* slave[2];
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int slave_count;
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hio_dev_thr_info_t* thr_info;
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hio_dev_thr_on_read_t on_read;
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hio_dev_thr_on_write_t on_write;
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hio_dev_thr_on_close_t on_close;
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};
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struct hio_dev_thr_slave_t
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{
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HIO_DEV_HEADER;
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hio_dev_thr_sid_t id;
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hio_syshnd_t pfd;
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hio_dev_thr_t* master; /* parent device */
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};
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typedef struct hio_dev_thr_make_t hio_dev_thr_make_t;
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struct hio_dev_thr_make_t
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{
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hio_dev_thr_func_t thr_func;
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void* thr_ctx;
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hio_dev_thr_on_write_t on_write; /* mandatory */
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hio_dev_thr_on_read_t on_read; /* mandatory */
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hio_dev_thr_on_close_t on_close; /* optional */
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};
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enum hio_dev_thr_ioctl_cmd_t
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{
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HIO_DEV_THR_CLOSE,
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HIO_DEV_THR_KILL_CHILD
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};
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typedef enum hio_dev_thr_ioctl_cmd_t hio_dev_thr_ioctl_cmd_t;
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#if defined(__cplusplus)
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extern "C" {
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#endif
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HIO_EXPORT hio_dev_thr_t* hio_dev_thr_make (
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hio_t* hio,
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hio_oow_t xtnsize,
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const hio_dev_thr_make_t* data
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);
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#if defined(HIO_HAVE_INLINE)
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static HIO_INLINE hio_t* hio_dev_thr_gethio (hio_dev_thr_t* thr) { return hio_dev_gethio((hio_dev_t*)thr); }
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#else
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# define hio_dev_thr_gethio(thr) hio_dev_gethio(thr)
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#endif
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#if defined(HIO_HAVE_INLINE)
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static HIO_INLINE void* hio_dev_thr_getxtn (hio_dev_thr_t* thr) { return (void*)(thr + 1); }
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#else
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# define hio_dev_thr_getxtn(thr) ((void*)(((hio_dev_thr_t*)thr) + 1))
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#endif
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HIO_EXPORT void hio_dev_thr_kill (
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hio_dev_thr_t* thr
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);
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HIO_EXPORT void hio_dev_thr_halt (
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hio_dev_thr_t* thr
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);
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HIO_EXPORT int hio_dev_thr_read (
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hio_dev_thr_t* thr,
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int enabled
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);
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HIO_EXPORT int hio_dev_thr_timedread (
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hio_dev_thr_t* thr,
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int enabled,
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const hio_ntime_t* tmout
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);
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HIO_EXPORT int hio_dev_thr_write (
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hio_dev_thr_t* thr,
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const void* data,
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hio_iolen_t len,
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void* wrctx
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);
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HIO_EXPORT int hio_dev_thr_timedwrite (
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hio_dev_thr_t* thr,
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const void* data,
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hio_iolen_t len,
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const hio_ntime_t* tmout,
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void* wrctx
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);
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HIO_EXPORT int hio_dev_thr_close (
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hio_dev_thr_t* thr,
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hio_dev_thr_sid_t sid
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);
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void hio_dev_thr_haltslave (
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hio_dev_thr_t* dev,
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hio_dev_thr_sid_t sid
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);
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#if defined(__cplusplus)
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}
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#endif
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#endif
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