452 lines
15 KiB
C++
452 lines
15 KiB
C++
/* devices.h
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#pragma once
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typedef unsigned short _major_t;
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typedef unsigned short _minor_t;
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#define FHDEV(maj, min) ((((unsigned) (maj)) << (sizeof (_major_t) * 8)) | (unsigned) (min))
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#define _minor(dev) ((dev) & ((1 << (sizeof (_minor_t) * 8)) - 1))
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#define _major(dev) ((dev) >> (sizeof (_major_t) * 8))
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#include <dirent.h>
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#include "cygheap_malloc.h"
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enum fh_devices
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{
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DEV_TTY_MAJOR = 5,
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FH_TTY = FHDEV (DEV_TTY_MAJOR, 0),
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FH_CONSOLE = FHDEV (DEV_TTY_MAJOR, 1),
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FH_PTMX = FHDEV (DEV_TTY_MAJOR, 2),
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FH_CONIN = FHDEV (DEV_TTY_MAJOR, 255),
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FH_CONOUT = FHDEV (DEV_TTY_MAJOR, 254),
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DEV_CONS_MAJOR = 3,
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FH_CONS = FHDEV (DEV_CONS_MAJOR, 0),
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FH_CONS_MAX = FHDEV (DEV_CONS_MAJOR, 127),
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DEV_PTYM_MAJOR = 128,
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FH_PTYM = FHDEV (DEV_PTYM_MAJOR, 0),
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FH_PTYM_MAX= FHDEV (DEV_PTYM_MAJOR, 255),
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DEV_PTYS_MAJOR = 136,
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FH_PTYS = FHDEV (DEV_PTYS_MAJOR, 0), /* FIXME: Should separate ttys and ptys */
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FH_PTYS_MAX= FHDEV (DEV_PTYS_MAJOR, 255), /* FIXME: Should separate ttys and ptys */
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DEV_SERIAL_MAJOR = 117,
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FH_SERIAL = FHDEV (117, 0), /* /dev/ttyS? */
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DEV_MISC_MAJOR = 13,
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FH_WINDOWS = FHDEV (DEV_MISC_MAJOR, 255),
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FH_CLIPBOARD=FHDEV (DEV_MISC_MAJOR, 254),
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/* begin /proc directories */
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DEV_VIRTFS_MAJOR = 0,
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FH_PROC_MIN_MINOR = FHDEV (DEV_VIRTFS_MAJOR, 200),
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FH_PROCSYSVIPC = FHDEV (DEV_VIRTFS_MAJOR, 249),
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FH_PROCSYS = FHDEV (DEV_VIRTFS_MAJOR, 250),
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FH_PROCESSFD = FHDEV (DEV_VIRTFS_MAJOR, 251),
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FH_PROCNET = FHDEV (DEV_VIRTFS_MAJOR, 252),
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FH_REGISTRY= FHDEV (DEV_VIRTFS_MAJOR, 253),
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FH_PROCESS = FHDEV (DEV_VIRTFS_MAJOR, 254),
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FH_PROC = FHDEV (DEV_VIRTFS_MAJOR, 255),
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FH_PROC_MAX_MINOR = FHDEV (DEV_VIRTFS_MAJOR, 255),
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/* end /proc directories */
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FH_PIPE = FHDEV (DEV_VIRTFS_MAJOR, 199),
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FH_PIPER = FHDEV (DEV_VIRTFS_MAJOR, 198),
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FH_PIPEW = FHDEV (DEV_VIRTFS_MAJOR, 197),
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FH_FIFO = FHDEV (DEV_VIRTFS_MAJOR, 196),
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FH_FS = FHDEV (DEV_VIRTFS_MAJOR, 195), /* filesystem based device */
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FH_NETDRIVE= FHDEV (DEV_VIRTFS_MAJOR, 194),
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FH_DEV = FHDEV (DEV_VIRTFS_MAJOR, 193),
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FH_CYGDRIVE= FHDEV (DEV_VIRTFS_MAJOR, 192),
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FH_DEV_FD = FHDEV (DEV_VIRTFS_MAJOR, 191),
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FH_DEV_DISK= FHDEV (DEV_VIRTFS_MAJOR, 190),
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FH_SIGNALFD= FHDEV (DEV_VIRTFS_MAJOR, 13),
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FH_TIMERFD = FHDEV (DEV_VIRTFS_MAJOR, 14),
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FH_MQUEUE = FHDEV (DEV_VIRTFS_MAJOR, 15),
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DEV_FLOPPY_MAJOR = 2,
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FH_FLOPPY = FHDEV (DEV_FLOPPY_MAJOR, 0),
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DEV_CDROM_MAJOR = 11,
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FH_CDROM = FHDEV (DEV_CDROM_MAJOR, 0),
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DEV_TAPE_MAJOR = 9,
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FH_TAPE = FHDEV (DEV_TAPE_MAJOR, 0),
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FH_NTAPE = FHDEV (DEV_TAPE_MAJOR, 128),
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FH_MAXNTAPE= FHDEV (DEV_TAPE_MAJOR, 255),
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DEV_SD_MAJOR = 8,
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DEV_SD1_MAJOR = 65,
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DEV_SD2_MAJOR = 66,
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DEV_SD3_MAJOR = 67,
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DEV_SD4_MAJOR = 68,
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DEV_SD5_MAJOR = 69,
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DEV_SD6_MAJOR = 70,
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DEV_SD7_MAJOR = 71,
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DEV_SD_HIGHPART_START = 259, /* partition # > 15 */
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DEV_SD_HIGHPART_END = 284,
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FH_SD = FHDEV (DEV_SD_MAJOR, 0),
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FH_SD1 = FHDEV (DEV_SD1_MAJOR, 0),
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FH_SD2 = FHDEV (DEV_SD2_MAJOR, 0),
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FH_SD3 = FHDEV (DEV_SD3_MAJOR, 0),
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FH_SD4 = FHDEV (DEV_SD4_MAJOR, 0),
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FH_SD5 = FHDEV (DEV_SD5_MAJOR, 0),
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FH_SD6 = FHDEV (DEV_SD6_MAJOR, 0),
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FH_SD7 = FHDEV (DEV_SD7_MAJOR, 0),
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FH_SDA = FHDEV (DEV_SD_MAJOR, 0),
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FH_SDB = FHDEV (DEV_SD_MAJOR, 16),
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FH_SDC = FHDEV (DEV_SD_MAJOR, 32),
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FH_SDD = FHDEV (DEV_SD_MAJOR, 48),
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FH_SDE = FHDEV (DEV_SD_MAJOR, 64),
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FH_SDF = FHDEV (DEV_SD_MAJOR, 80),
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FH_SDG = FHDEV (DEV_SD_MAJOR, 96),
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FH_SDH = FHDEV (DEV_SD_MAJOR, 112),
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FH_SDI = FHDEV (DEV_SD_MAJOR, 128),
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FH_SDJ = FHDEV (DEV_SD_MAJOR, 144),
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FH_SDK = FHDEV (DEV_SD_MAJOR, 160),
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FH_SDL = FHDEV (DEV_SD_MAJOR, 176),
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FH_SDM = FHDEV (DEV_SD_MAJOR, 192),
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FH_SDN = FHDEV (DEV_SD_MAJOR, 208),
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FH_SDO = FHDEV (DEV_SD_MAJOR, 224),
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FH_SDP = FHDEV (DEV_SD_MAJOR, 240),
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FH_SDQ = FHDEV (DEV_SD1_MAJOR, 0),
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FH_SDR = FHDEV (DEV_SD1_MAJOR, 16),
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FH_SDS = FHDEV (DEV_SD1_MAJOR, 32),
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FH_SDT = FHDEV (DEV_SD1_MAJOR, 48),
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FH_SDU = FHDEV (DEV_SD1_MAJOR, 64),
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FH_SDV = FHDEV (DEV_SD1_MAJOR, 80),
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FH_SDW = FHDEV (DEV_SD1_MAJOR, 96),
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FH_SDX = FHDEV (DEV_SD1_MAJOR, 112),
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FH_SDY = FHDEV (DEV_SD1_MAJOR, 128),
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FH_SDZ = FHDEV (DEV_SD1_MAJOR, 144),
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FH_SDAA = FHDEV (DEV_SD1_MAJOR, 160),
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FH_SDAB = FHDEV (DEV_SD1_MAJOR, 176),
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FH_SDAC = FHDEV (DEV_SD1_MAJOR, 192),
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FH_SDAD = FHDEV (DEV_SD1_MAJOR, 208),
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FH_SDAE = FHDEV (DEV_SD1_MAJOR, 224),
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FH_SDAF = FHDEV (DEV_SD1_MAJOR, 240),
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FH_SDAG = FHDEV (DEV_SD2_MAJOR, 0),
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FH_SDAH = FHDEV (DEV_SD2_MAJOR, 16),
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FH_SDAI = FHDEV (DEV_SD2_MAJOR, 32),
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FH_SDAJ = FHDEV (DEV_SD2_MAJOR, 48),
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FH_SDAK = FHDEV (DEV_SD2_MAJOR, 64),
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FH_SDAL = FHDEV (DEV_SD2_MAJOR, 80),
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FH_SDAM = FHDEV (DEV_SD2_MAJOR, 96),
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FH_SDAN = FHDEV (DEV_SD2_MAJOR, 112),
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FH_SDAO = FHDEV (DEV_SD2_MAJOR, 128),
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FH_SDAP = FHDEV (DEV_SD2_MAJOR, 144),
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FH_SDAQ = FHDEV (DEV_SD2_MAJOR, 160),
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FH_SDAR = FHDEV (DEV_SD2_MAJOR, 176),
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FH_SDAS = FHDEV (DEV_SD2_MAJOR, 192),
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FH_SDAT = FHDEV (DEV_SD2_MAJOR, 208),
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FH_SDAU = FHDEV (DEV_SD2_MAJOR, 224),
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FH_SDAV = FHDEV (DEV_SD2_MAJOR, 240),
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FH_SDAW = FHDEV (DEV_SD3_MAJOR, 0),
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FH_SDAX = FHDEV (DEV_SD3_MAJOR, 16),
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FH_SDAY = FHDEV (DEV_SD3_MAJOR, 32),
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FH_SDAZ = FHDEV (DEV_SD3_MAJOR, 48),
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FH_SDBA = FHDEV (DEV_SD3_MAJOR, 64),
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FH_SDBB = FHDEV (DEV_SD3_MAJOR, 80),
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FH_SDBC = FHDEV (DEV_SD3_MAJOR, 96),
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FH_SDBD = FHDEV (DEV_SD3_MAJOR, 112),
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FH_SDBE = FHDEV (DEV_SD3_MAJOR, 128),
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FH_SDBF = FHDEV (DEV_SD3_MAJOR, 144),
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FH_SDBG = FHDEV (DEV_SD3_MAJOR, 160),
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FH_SDBH = FHDEV (DEV_SD3_MAJOR, 176),
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FH_SDBI = FHDEV (DEV_SD3_MAJOR, 192),
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FH_SDBJ = FHDEV (DEV_SD3_MAJOR, 208),
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FH_SDBK = FHDEV (DEV_SD3_MAJOR, 224),
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FH_SDBL = FHDEV (DEV_SD3_MAJOR, 240),
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FH_SDBM = FHDEV (DEV_SD4_MAJOR, 0),
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FH_SDBN = FHDEV (DEV_SD4_MAJOR, 16),
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FH_SDBO = FHDEV (DEV_SD4_MAJOR, 32),
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FH_SDBP = FHDEV (DEV_SD4_MAJOR, 48),
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FH_SDBQ = FHDEV (DEV_SD4_MAJOR, 64),
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FH_SDBR = FHDEV (DEV_SD4_MAJOR, 80),
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FH_SDBS = FHDEV (DEV_SD4_MAJOR, 96),
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FH_SDBT = FHDEV (DEV_SD4_MAJOR, 112),
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FH_SDBU = FHDEV (DEV_SD4_MAJOR, 128),
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FH_SDBV = FHDEV (DEV_SD4_MAJOR, 144),
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FH_SDBW = FHDEV (DEV_SD4_MAJOR, 160),
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FH_SDBX = FHDEV (DEV_SD4_MAJOR, 176),
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FH_SDBY = FHDEV (DEV_SD4_MAJOR, 192),
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FH_SDBZ = FHDEV (DEV_SD4_MAJOR, 208),
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FH_SDCA = FHDEV (DEV_SD4_MAJOR, 224),
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FH_SDCB = FHDEV (DEV_SD4_MAJOR, 240),
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FH_SDCC = FHDEV (DEV_SD5_MAJOR, 0),
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FH_SDCD = FHDEV (DEV_SD5_MAJOR, 16),
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FH_SDCE = FHDEV (DEV_SD5_MAJOR, 32),
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FH_SDCF = FHDEV (DEV_SD5_MAJOR, 48),
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FH_SDCG = FHDEV (DEV_SD5_MAJOR, 64),
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FH_SDCH = FHDEV (DEV_SD5_MAJOR, 80),
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FH_SDCI = FHDEV (DEV_SD5_MAJOR, 96),
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FH_SDCJ = FHDEV (DEV_SD5_MAJOR, 112),
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FH_SDCK = FHDEV (DEV_SD5_MAJOR, 128),
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FH_SDCL = FHDEV (DEV_SD5_MAJOR, 144),
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FH_SDCM = FHDEV (DEV_SD5_MAJOR, 160),
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FH_SDCN = FHDEV (DEV_SD5_MAJOR, 176),
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FH_SDCO = FHDEV (DEV_SD5_MAJOR, 192),
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FH_SDCP = FHDEV (DEV_SD5_MAJOR, 208),
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FH_SDCQ = FHDEV (DEV_SD5_MAJOR, 224),
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FH_SDCR = FHDEV (DEV_SD5_MAJOR, 240),
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FH_SDCS = FHDEV (DEV_SD6_MAJOR, 0),
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FH_SDCT = FHDEV (DEV_SD6_MAJOR, 16),
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FH_SDCU = FHDEV (DEV_SD6_MAJOR, 32),
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FH_SDCV = FHDEV (DEV_SD6_MAJOR, 48),
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FH_SDCW = FHDEV (DEV_SD6_MAJOR, 64),
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FH_SDCX = FHDEV (DEV_SD6_MAJOR, 80),
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FH_SDCY = FHDEV (DEV_SD6_MAJOR, 96),
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FH_SDCZ = FHDEV (DEV_SD6_MAJOR, 112),
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FH_SDDA = FHDEV (DEV_SD6_MAJOR, 128),
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FH_SDDB = FHDEV (DEV_SD6_MAJOR, 144),
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FH_SDDC = FHDEV (DEV_SD6_MAJOR, 160),
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FH_SDDD = FHDEV (DEV_SD6_MAJOR, 176),
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FH_SDDE = FHDEV (DEV_SD6_MAJOR, 192),
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FH_SDDF = FHDEV (DEV_SD6_MAJOR, 208),
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FH_SDDG = FHDEV (DEV_SD6_MAJOR, 224),
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FH_SDDH = FHDEV (DEV_SD6_MAJOR, 240),
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FH_SDDI = FHDEV (DEV_SD7_MAJOR, 0),
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FH_SDDJ = FHDEV (DEV_SD7_MAJOR, 16),
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FH_SDDK = FHDEV (DEV_SD7_MAJOR, 32),
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FH_SDDL = FHDEV (DEV_SD7_MAJOR, 48),
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FH_SDDM = FHDEV (DEV_SD7_MAJOR, 64),
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FH_SDDN = FHDEV (DEV_SD7_MAJOR, 80),
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FH_SDDO = FHDEV (DEV_SD7_MAJOR, 96),
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FH_SDDP = FHDEV (DEV_SD7_MAJOR, 112),
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FH_SDDQ = FHDEV (DEV_SD7_MAJOR, 128),
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FH_SDDR = FHDEV (DEV_SD7_MAJOR, 144),
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FH_SDDS = FHDEV (DEV_SD7_MAJOR, 160),
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FH_SDDT = FHDEV (DEV_SD7_MAJOR, 176),
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FH_SDDU = FHDEV (DEV_SD7_MAJOR, 192),
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FH_SDDV = FHDEV (DEV_SD7_MAJOR, 208),
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FH_SDDW = FHDEV (DEV_SD7_MAJOR, 224),
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FH_SDDX = FHDEV (DEV_SD7_MAJOR, 240),
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DEV_MEM_MAJOR = 1,
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FH_NULL = FHDEV (DEV_MEM_MAJOR, 3),
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FH_ZERO = FHDEV (DEV_MEM_MAJOR, 5),
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FH_FULL = FHDEV (DEV_MEM_MAJOR, 7),
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FH_RANDOM = FHDEV (DEV_MEM_MAJOR, 8),
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FH_URANDOM = FHDEV (DEV_MEM_MAJOR, 9),
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DEV_SOUND_MAJOR = 14,
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FH_OSS_MIXER = FHDEV (DEV_SOUND_MAJOR, 0),
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FH_OSS_DSP = FHDEV (DEV_SOUND_MAJOR, 3),
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DEV_SOCK_MAJOR = 30,
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FH_SOCKET = FHDEV (DEV_SOCK_MAJOR, 0),
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FH_INET = FHDEV (DEV_SOCK_MAJOR, 36),
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FH_UNIX = FHDEV (DEV_SOCK_MAJOR, 42),
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FH_LOCAL = FHDEV (DEV_SOCK_MAJOR, 120),
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FH_NADA = FHDEV (0, 0),
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FH_ERROR = FHDEV (255, 255) /* Set by fh constructor when error detected */
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};
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/* struct _device is required to allow the code in devices.cc autogenerated
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from devices.in continuing to work, even with a proper class device.
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We need to keep up with this as long as we use shilka to build a device
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table.
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Do not add members to device. Always add it to _device. */
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class device;
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struct _device
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{
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const char *_name;
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union __cygwin_dev
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{
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dev_t devn;
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fh_devices devn_fh_devices;
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struct
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{
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_minor_t minor;
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_major_t major;
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};
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} d;
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const char *_native;
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int (*exists_func) (const device&);
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__mode_t _mode;
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bool lives_in_dev;
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bool dev_on_fs;
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bool name_allocated;
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bool native_allocated;
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};
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class device : private _device
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{
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void parsedisk (int, int);
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void name (const char *n, bool a)
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{
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_name = (!(name_allocated = a)) ? n : cstrdup (n);
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}
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void native (const char *n, bool a)
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{
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_native = (!(native_allocated = a)) ? n : cstrdup (n);
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}
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public:
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device () { memset (this, 0, sizeof *this); }
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device (int drive, int part)
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{
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memset (this, 0, sizeof *this);
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parsedisk (drive, part);
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}
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~device ()
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{
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if (name_allocated)
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cfree ((void *) _name);
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if (native_allocated)
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cfree ((void *) _native);
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}
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const char *name () const { return _name; }
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const char *native () const { return _native; }
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__mode_t mode () const { return _mode; }
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void mode (__mode_t m) { _mode = m; }
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void name (const char *n) { name (n, false); }
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void native (const char *n) { native (n, false); }
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void dup ()
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{
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name (_name, name_allocated);
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native (_native, native_allocated);
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}
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void parse (const char *);
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void parse (_major_t major, _minor_t minor);
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void parse (dev_t dev);
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inline bool setunit (unsigned n)
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{
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d.minor = n;
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return true;
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}
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static void init ();
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static _major_t major (dev_t n)
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{
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__cygwin_dev d;
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d.devn = n;
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return d.major;
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}
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static _minor_t minor (dev_t n)
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{
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__cygwin_dev d;
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d.devn = n;
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return d.minor;
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}
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static _major_t major (int n) {return major ((dev_t) n);}
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static _minor_t minor (int n) {return minor ((dev_t) n);}
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bool is_device (dev_t n) const {return n == d.devn; }
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bool not_device (dev_t n) const {return d.devn && n != d.devn; }
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_minor_t get_minor () const {return d.minor;}
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_major_t get_major () const {return d.major;}
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dev_t get_device () const {return d.devn;}
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inline operator fh_devices () {return d.devn_fh_devices;}
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inline operator bool () {return !!d.devn;}
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inline operator dev_t& () {return d.devn;}
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device &operator = (_device _d)
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{
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memcpy (this, &_d, sizeof _d);
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dev_on_fs = name_allocated = native_allocated = false;
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return *this;
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}
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device &operator = (device &_d)
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{
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memcpy (this, &_d, sizeof _d);
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name (_d.name (), _d.name_allocated);
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native (_d.native (), _d.native_allocated);
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return *this;
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}
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fh_devices operator = (fh_devices n) {return d.devn_fh_devices = n;}
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inline void setfs (bool x) {dev_on_fs = x;}
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inline bool isfs () const {return dev_on_fs || d.devn == FH_FS;}
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inline bool is_fs_special () const {return dev_on_fs && d.devn != FH_FS;}
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inline bool is_dev_resident () const {return lives_in_dev;}
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inline int exists () const {return exists_func (*this);}
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unsigned char type () const
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{
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return IFTODT (_mode);
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}
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};
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extern const _device dev_storage[];
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extern const _device *dev_storage_end;
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extern const _device *console_dev;
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extern const _device *ptmx_dev;
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extern const _device *ptys_dev;
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extern const _device *urandom_dev;
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extern const _device dev_socket_storage;
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#define socket_dev ((device *) &dev_socket_storage)
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extern const _device dev_af_inet_storage;
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#define af_inet_dev ((device *) &dev_af_inet_storage)
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extern const _device dev_af_local_storage;
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#define af_local_dev ((device *) &dev_af_local_storage)
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extern const _device dev_af_unix_storage;
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#define af_unix_dev ((device *) &dev_af_unix_storage)
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extern const _device dev_signalfd_storage;
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#define signalfd_dev ((device *) &dev_signalfd_storage)
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extern const _device dev_timerfd_storage;
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#define timerfd_dev ((device *) &dev_timerfd_storage)
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extern const _device dev_mqueue_storage;
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#define mqueue_dev ((device *) &dev_mqueue_storage)
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extern const _device dev_piper_storage;
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#define piper_dev ((device *) &dev_piper_storage)
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extern const _device dev_pipew_storage;
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#define pipew_dev ((device *) &dev_pipew_storage)
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extern const _device dev_dev_disk_storage;
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#define dev_disk_dev ((device *) &dev_dev_disk_storage)
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extern const _device dev_proc_storage;
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#define proc_dev ((device *) &dev_proc_storage)
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extern const _device dev_dev_storage;
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#define dev_dev ((device *) &dev_dev_storage)
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extern const _device dev_netdrive_storage;
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#define netdrive_dev ((device *) &dev_netdrive_storage)
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extern const _device dev_cygdrive_storage;
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#define cygdrive_dev ((device *) &dev_cygdrive_storage)
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extern const _device dev_fh_storage;
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#define fh_dev ((device *) &dev_fh_storage)
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extern const _device dev_fs_storage;
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#define fs_dev ((device *) &dev_fs_storage)
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#define isproc_dev(devn) \
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(devn >= FH_PROC_MIN_MINOR && devn <= FH_PROC_MAX_MINOR)
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#define iscygdrive_dev(devn) (devn == FH_CYGDRIVE)
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#define isdev_dev(devn) (devn == FH_DEV)
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#define isdevfd_dev(devn) (devn == FH_DEV_FD)
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#define isprocsys_dev(devn) (devn == FH_PROCSYS)
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#define isvirtual_dev(devn) \
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(isproc_dev (devn) || devn == FH_CYGDRIVE || devn == FH_NETDRIVE \
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|| devn == FH_DEV_FD || devn == FH_DEV_DISK)
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#define iscons_dev(n) \
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((device::major ((dev_t) (n)) == DEV_CONS_MAJOR) \
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|| (((dev_t) n) == FH_CONSOLE) \
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|| (((dev_t) n) == FH_CONIN) \
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|| (((dev_t) n) == FH_CONOUT))
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#define istty_slave_dev(n) (device::major (n) == DEV_PTYS_MAJOR)
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