diff options
Diffstat (limited to 'winsup/cygwin/devices.h')
| -rw-r--r-- | winsup/cygwin/devices.h | 78 |
1 files changed, 64 insertions, 14 deletions
diff --git a/winsup/cygwin/devices.h b/winsup/cygwin/devices.h index 5c9909a5f..b03364494 100644 --- a/winsup/cygwin/devices.h +++ b/winsup/cygwin/devices.h @@ -8,6 +8,9 @@ This software is a copyrighted work licensed under the terms of the Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ +#ifndef _DEVICES_H +#define _DEVICES_H + typedef unsigned short _major_t; typedef unsigned short _minor_t; typedef mode_t _mode_t; @@ -17,6 +20,7 @@ typedef __dev32_t _dev_t; #define _minor(dev) ((dev) & ((1 << (sizeof (_minor_t) * 8)) - 1)) #define _major(dev) ((dev) >> (sizeof (_major_t) * 8)) +#define MAX_CONSOLES 31 enum fh_devices { FH_TTY = FHDEV (5, 0), @@ -25,6 +29,10 @@ enum fh_devices FH_CONIN = FHDEV (5, 255), FH_CONOUT = FHDEV (5, 254), + DEV_CONS_MAJOR = 3, + FH_CONS = FHDEV (DEV_CONS_MAJOR, 0), + FH_CONS_MAX = FHDEV (DEV_CONS_MAJOR, MAX_CONSOLES), + DEV_TTYM_MAJOR = 128, FH_TTYM = FHDEV (DEV_TTYM_MAJOR, 0), FH_TTYM_MAX= FHDEV (DEV_TTYM_MAJOR, 255), @@ -40,17 +48,17 @@ enum fh_devices FH_CLIPBOARD=FHDEV (13, 254), /* begin /proc directories */ - FH_PROC_MAX_MINOR = FHDEV (0, 255), - FH_PROC = FHDEV (0, 255), - FH_PROCESS = FHDEV (0, 254), - FH_REGISTRY= FHDEV (0, 253), - FH_PROCNET = FHDEV (0, 252), - FH_PROCESSFD = FHDEV (0, 251), - FH_PROCSYS = FHDEV (0, 250), + FH_PROC_MIN_MINOR = FHDEV (0, 200), FH_PROCSYSVIPC = FHDEV (0, 249), + FH_PROCSYS = FHDEV (0, 250), + FH_PROCESSFD = FHDEV (0, 251), + FH_PROCNET = FHDEV (0, 252), + FH_REGISTRY= FHDEV (0, 253), + FH_PROCESS = FHDEV (0, 254), + FH_PROC = FHDEV (0, 255), + FH_PROC_MAX_MINOR = FHDEV (0, 255), - FH_PROC_MIN_MINOR = FHDEV (0, 200), /* end /proc directories */ FH_PIPE = FHDEV (0, 199), @@ -245,15 +253,18 @@ enum fh_devices struct device { const char *name; - union + union __cygwin_dev { _dev_t devn; + DWORD devn_dword; + int devn_int; + fh_devices devn_fh_devices; struct { _minor_t minor; _major_t major; }; - }; + } d; const char *native; _mode_t mode; bool dev_on_fs; @@ -264,14 +275,40 @@ struct device void parsedisk (int, int); inline bool setunit (unsigned n) { - minor = n; + d.minor = n; return true; } static void init (); - inline operator int () const {return devn;} + + static _major_t major (_dev_t n) + { + __cygwin_dev d; + d.devn = n; + return d.major; + } + static _minor_t minor (_dev_t n) + { + __cygwin_dev d; + d.devn = n; + return d.minor; + } + static _major_t major (int n) {return major ((_dev_t) n);} + static _minor_t minor (int n) {return minor ((_dev_t) n);} + + bool is_device (_dev_t n) const {return n == d.devn; } + bool not_device (_dev_t n) const {return d.devn && n != d.devn; } + + _minor_t get_minor () const {return d.minor;} + _minor_t get_major () const {return d.major;} + + inline operator int () {return d.devn_int;} + inline operator fh_devices () {return d.devn_fh_devices;} + inline operator bool () {return !!d.devn_int;} + inline operator DWORD& () {return d.devn_dword;} + fh_devices operator = (fh_devices n) {return d.devn_fh_devices = n;} inline void setfs (bool x) {dev_on_fs = x;} - inline bool isfs () const {return dev_on_fs || devn == FH_FS;} - inline bool is_fs_special () const {return dev_on_fs && devn != FH_FS;} + inline bool isfs () const {return dev_on_fs || d.devn == FH_FS;} + inline bool is_fs_special () const {return dev_on_fs && d.devn != FH_FS;} }; extern const device *console_dev; @@ -302,3 +339,16 @@ extern const device dev_fh_storage; #define fh_dev (&dev_fh_storage) extern const device dev_fs_storage; #define fs_dev (&dev_fs_storage) + +#define isproc_dev(devn) \ + (devn >= FH_PROC_MIN_MINOR && devn <= FH_PROC_MAX_MINOR) + +#define isprocsys_dev(devn) (devn == FH_PROCSYS) + +#define isvirtual_dev(devn) \ + (isproc_dev (devn) || devn == FH_CYGDRIVE || devn == FH_NETDRIVE) + +#define iscons_dev(n) (device::major (n) == DEV_CONS_MAJOR) + +#define istty_slave_dev(n) (device::major (n) == DEV_TTYS_MAJOR) +#endif /*_DEVICES_H*/ |