|
|
1.1 ! root 1: /* (-lgl ! 2: * COHERENT Version 4.0 ! 3: * Copyright (c) 1982, 1992 by Mark Williams Company. ! 4: * All rights reserved. May not be copied without permission. ! 5: -lgl) */ ! 6: /* ! 7: * /usr/include/sys/inode.h ! 8: * Memory resident inodes. ! 9: */ ! 10: ! 11: #ifndef __SYS_INODE_H__ ! 12: #define __SYS_INODE_H__ ! 13: ! 14: #include <common/feature.h> ! 15: #include <sys/types.h> ! 16: #include <sys/ksynch.h> ! 17: #include <common/_time.h> ! 18: #include <poll.h> ! 19: ! 20: ! 21: /* ! 22: * Size of pipe buffer. ! 23: */ ! 24: #define PIPSIZE (ND*BSIZE) ! 25: ! 26: /* ! 27: * File inode. ! 28: */ ! 29: typedef struct inode { ! 30: dev_t i_dev; /* Device */ ! 31: ino_t i_ino; /* Inode index */ ! 32: int i_refc; /* Reference count */ ! 33: unsigned i_lrt; /* Last reference time */ ! 34: GATE i_gate; /* Gate */ ! 35: int i_flag; /* Flags */ ! 36: short i_mode; /* Mode and type */ ! 37: short i_nlink; /* Number of links */ ! 38: short i_uid; /* Owner's user id */ ! 39: short i_gid; /* Owner's group id */ ! 40: fsize_t i_size; /* Size of file in bytes */ ! 41: union ia_u { ! 42: daddr_t i_addr[13]; /* Disk addresses */ ! 43: dev_t i_rdev; /* Real device */ ! 44: struct ip_s { /* Pipes */ ! 45: daddr_t ip_pipe[10]; ! 46: short ip_pnc; /* Number Characters */ ! 47: short ip_prx; /* Reader Offset */ ! 48: short ip_pwx; /* Writer Offset */ ! 49: short ip_par; /* Number Awake Readers */ ! 50: short ip_paw; /* Number Awake Writers */ ! 51: short ip_psr; /* Number Sleeping Readers */ ! 52: short ip_psw; /* Number Sleeping Writers */ ! 53: event_t ip_iev; /* Polling Input Event */ ! 54: event_t ip_oev; /* Polling Output Event */ ! 55: } i_p; ! 56: } i_a; /* Addresses */ ! 57: time_t i_atime; /* Last access time */ ! 58: time_t i_mtime; /* Last modify time */ ! 59: time_t i_ctime; /* Creation time */ ! 60: #if _I386 ! 61: struct rlock *i_rl; /* List of record locks */ ! 62: daddr_t i_lastblock; /* for readahead */ ! 63: #endif ! 64: } INODE; ! 65: ! 66: /* ! 67: * Compatibility. ! 68: */ ! 69: #define i_pipe i_a.i_p.ip_pipe ! 70: #define i_pnc i_a.i_p.ip_pnc ! 71: #define i_prx i_a.i_p.ip_prx ! 72: #define i_pwx i_a.i_p.ip_pwx ! 73: #define i_par i_a.i_p.ip_par ! 74: #define i_paw i_a.i_p.ip_paw ! 75: #define i_psr i_a.i_p.ip_psr ! 76: #define i_psw i_a.i_p.ip_psw ! 77: #define i_iev i_a.i_p.ip_iev ! 78: #define i_oev i_a.i_p.ip_oev ! 79: ! 80: /* ! 81: * Flags. ! 82: */ ! 83: #define IFACC 0x1 /* File has been accessed */ ! 84: #define IFMOD 0x2 /* File has been modified */ ! 85: #define IFCRT 0x4 /* File has been created */ ! 86: #define IFMNT 0x8 /* Contains mounted file system */ ! 87: ! 88: #if _I386 ! 89: #define IFEXCL 0x80 /* Exclusive open */ ! 90: #endif /* _I386 */ ! 91: ! 92: /* ! 93: * This relates to a hack in the 16-bit system-call interface; this value is ! 94: * jammed into 16-bit file descriptors. If NOFILE ever gets bigger than this, ! 95: * 16-bit applications stand to lose big. ! 96: */ ! 97: #define DUP2 0x40 ! 98: ! 99: #if __KERNEL__ ! 100: ! 101: /* ! 102: * Macro functions. ! 103: */ ! 104: ! 105: #define ilock(ip) lock(ip->i_gate) ! 106: #define iunlock(ip) unlock(ip->i_gate) ! 107: #define ilocked(ip) __GATE_LOCKED (ip->i_gate) ! 108: ! 109: /* ! 110: * Functions to set modify time. ! 111: */ ! 112: #define iacc(ip) { \ ! 113: ip->i_flag |= IFACC; \ ! 114: ip->i_atime = timer.t_time; \ ! 115: } ! 116: ! 117: #define imod(ip) { \ ! 118: ip->i_flag |= IFMOD; \ ! 119: ip->i_mtime = timer.t_time; \ ! 120: } ! 121: ! 122: #define icrt(ip) { \ ! 123: ip->i_flag |= IFCRT; \ ! 124: ip->i_ctime = timer.t_time; \ ! 125: } ! 126: ! 127: #define iamc(ip) { \ ! 128: ip->i_flag |= IFACC|IFMOD|IFCRT; \ ! 129: ip->i_atime = timer.t_time; \ ! 130: ip->i_mtime = timer.t_time; \ ! 131: ip->i_ctime = timer.t_time; \ ! 132: } ! 133: ! 134: /* ! 135: * Functions. ! 136: */ ! 137: extern INODE *exlopen(); /* exec.c */ ! 138: extern INODE *ftoim(); /* fs1.c */ ! 139: extern INODE *imake(); /* fs1.c */ ! 140: extern INODE *iattach(); /* fs1.c */ ! 141: extern INODE *ialloc(); /* fs2.c */ ! 142: extern daddr_t balloc(); /* fs2.c */ ! 143: extern INODE *pmake(); /* pipe.c */ ! 144: ! 145: /* ! 146: * Global variables. ! 147: */ ! 148: extern int ronflag; /* Root is read only */ ! 149: extern INODE *inodep; /* Pointer to in core inodes */ ! 150: extern INODE *acctip; /* Accounting file pointer */ ! 151: ! 152: #endif /* __KERNEL__ */ ! 153: ! 154: #endif /* ! defined (__SYS_INODE_H__) */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.