moved all files to the top-level
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169
lib/hio-pty.h
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169
lib/hio-pty.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 provided 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 repipeduce 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 provided with the distribution.
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THIS SOFTWARE IS PIPEVIDED 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, PIPECUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PIPEFITS; 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_PTY_H_
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#define _HIO_PTY_H_
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#include <hio.h>
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typedef struct hio_dev_pty_t hio_dev_pty_t;
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typedef int (*hio_dev_pty_on_read_t) (
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hio_dev_pty_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_pty_on_write_t) (
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hio_dev_pty_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_pty_on_close_t) (
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hio_dev_pty_t* dev
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);
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typedef int (*hio_dev_pty_on_fork_t) (
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hio_dev_pty_t* dev,
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void* fork_ctx
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);
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struct hio_dev_pty_t
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{
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HIO_DEV_HEADER;
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hio_syshnd_t hnd;
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hio_intptr_t child_pid;
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int flags;
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hio_dev_pty_on_read_t on_read;
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hio_dev_pty_on_write_t on_write;
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hio_dev_pty_on_close_t on_close;
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};
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enum hio_dev_pty_make_flag_t
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{
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HIO_DEV_PTY_UCMD = (1 << 12), /* cmd is hio_uch_t* */
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HIO_DEV_PTY_SHELL = (1 << 13),
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/* perform no waitpid() on a child process upon device destruction.
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* you should set this flag if your application has automatic child
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* process reaping enabled. for instance, SIGCHLD is set to SIG_IGN
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* on POSIX.1-2001 compliant systems */
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HIO_DEV_PTY_FORGET_CHILD = (1 << 14),
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HIO_DEV_PTY_FORGET_DIEHARD_CHILD = (1 << 15)
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};
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typedef enum hio_dev_pty_make_flag_t hio_dev_pty_make_flag_t;
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typedef struct hio_dev_pty_make_t hio_dev_pty_make_t;
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struct hio_dev_pty_make_t
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{
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int flags; /**< bitwise-ORed of hio_dev_pty_make_flag_t enumerators */
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const void* cmd; /* the actual type is determined by HIO_DEV_PTY_UCMD */
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hio_dev_pty_on_write_t on_write; /* mandatory */
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hio_dev_pty_on_read_t on_read; /* mandatory */
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hio_dev_pty_on_close_t on_close; /* optional */
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hio_dev_pty_on_fork_t on_fork; /* optional */
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void* fork_ctx;
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};
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enum hio_dev_pty_ioctl_cmd_t
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{
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HIO_DEV_PTY_CLOSE,
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HIO_DEV_PTY_KILL_CHILD
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};
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typedef enum hio_dev_pty_ioctl_cmd_t hio_dev_pty_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_pty_t* hio_dev_pty_make (
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hio_t* hio,
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hio_oow_t xtnsize,
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const hio_dev_pty_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_pty_gethio (hio_dev_pty_t* pty) { return hio_dev_gethio((hio_dev_t*)pty); }
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static HIO_INLINE void* hio_dev_pty_getxtn (hio_dev_pty_t* pty) { return (void*)(pty + 1); }
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static HIO_INLINE hio_syshnd_t hio_dev_pty_getsyshnd (hio_dev_pty_t* pty) { return pty->hnd; }
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#else
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# define hio_dev_pty_gethio(pty) hio_dev_gethio(pty)
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# define hio_dev_pty_getxtn(pty) ((void*)(((hio_dev_pty_t*)pty) + 1))
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# define hio_dev_pty_getsyshnd(pty) (((hio_dev_pty_t*)pty)->hnd)
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#endif
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#if defined(HIO_HAVE_INLINE)
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#else
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#endif
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HIO_EXPORT void hio_dev_pty_kill (
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hio_dev_pty_t* pty
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);
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HIO_EXPORT void hio_dev_pty_halt (
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hio_dev_pty_t* pty
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);
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HIO_EXPORT int hio_dev_pty_read (
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hio_dev_pty_t* pty,
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int enabled
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);
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HIO_EXPORT int hio_dev_pty_timedread (
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hio_dev_pty_t* pty,
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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_pty_write (
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hio_dev_pty_t* pty,
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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_pty_timedwrite (
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hio_dev_pty_t* pty,
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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_pty_close (
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hio_dev_pty_t* pty
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);
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HIO_EXPORT int hio_dev_pty_killchild (
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hio_dev_pty_t* pro
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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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