projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 55492a25 C |
1 | /* user.h 6.1 83/07/29 */ |
| 2 | ||
| 3 | #ifdef KERNEL | |
| 4 | #include "../machine/pcb.h" | |
| 5 | #include "../h/dmap.h" | |
| 6 | #include "../h/time.h" | |
| 7 | #include "../h/resource.h" | |
| 8 | #else | |
| 9 | #include <machine/pcb.h> | |
| 10 | #include <sys/dmap.h> | |
| 11 | #include <sys/time.h> | |
| 12 | #include <sys/resource.h> | |
| 13 | #endif | |
| 14 | ||
| 15 | /* | |
| 16 | * Per process structure containing data that | |
| 17 | * isn't needed in core when the process is swapped out. | |
| 18 | */ | |
| 19 | ||
| 20 | #define SHSIZE 32 | |
| 21 | #define MAXCOMLEN 16 /* <= MAXNAMLEN, >= sizeof(a_comm) */ | |
| 22 | ||
| 23 | struct user { | |
| 24 | struct pcb u_pcb; | |
| 25 | struct proc *u_procp; /* pointer to proc structure */ | |
| 26 | int *u_ar0; /* address of users saved R0 */ | |
| 27 | char u_comm[MAXNAMLEN + 1]; | |
| 28 | ||
| 29 | /* syscall parameters, results and catches */ | |
| 30 | int u_arg[8]; /* arguments to current system call */ | |
| 31 | int *u_ap; /* pointer to arglist */ | |
| 32 | label_t u_qsave; /* for non-local gotos on interrupts */ | |
| 33 | char u_error; /* return error code */ | |
| 34 | union { /* syscall return values */ | |
| 35 | struct { | |
| 36 | int R_val1; | |
| 37 | int R_val2; | |
| 38 | } u_rv; | |
| 39 | #define r_val1 u_rv.R_val1 | |
| 40 | #define r_val2 u_rv.R_val2 | |
| 41 | off_t r_off; | |
| 42 | time_t r_time; | |
| 43 | } u_r; | |
| 44 | char u_eosys; /* special action on end of syscall */ | |
| 45 | ||
| 46 | /* 1.1 - processes and protection */ | |
| 47 | short u_uid; /* effective user id */ | |
| 48 | short u_gid; /* effective group id */ | |
| 49 | int u_groups[NGROUPS]; /* groups, 0 terminated */ | |
| 50 | short u_ruid; /* real user id */ | |
| 51 | short u_rgid; /* real group id */ | |
| 52 | ||
| 53 | /* 1.2 - memory management */ | |
| 54 | size_t u_tsize; /* text size (clicks) */ | |
| 55 | size_t u_dsize; /* data size (clicks) */ | |
| 56 | size_t u_ssize; /* stack size (clicks) */ | |
| 57 | struct dmap u_dmap; /* disk map for data segment */ | |
| 58 | struct dmap u_smap; /* disk map for stack segment */ | |
| 59 | struct dmap u_cdmap, u_csmap; /* shadows of u_dmap, u_smap, for | |
| 60 | use of parent during fork */ | |
| 61 | label_t u_ssave; /* label variable for swapping */ | |
| 62 | size_t u_odsize, u_ossize; /* for (clumsy) expansion swaps */ | |
| 63 | time_t u_outime; /* user time at last sample */ | |
| 64 | ||
| 65 | /* 1.3 - signal management */ | |
| 66 | int (*u_signal[NSIG])(); /* disposition of signals */ | |
| 67 | int u_sigmask[NSIG]; /* signals to be blocked */ | |
| 68 | int u_sigonstack; /* signals to take on sigstack */ | |
| 69 | int u_oldmask; /* saved mask from before sigpause */ | |
| 70 | int u_code; /* ``code'' to trap */ | |
| 71 | struct sigstack u_sigstack; /* sp & on stack state variable */ | |
| 72 | #define u_onstack u_sigstack.ss_onstack | |
| 73 | #define u_sigsp u_sigstack.ss_sp | |
| 74 | ||
| 75 | /* 1.4 - descriptor management */ | |
| 76 | struct file *u_ofile[NOFILE]; /* file structures for open files */ | |
| 77 | char u_pofile[NOFILE]; /* per-process flags of open files */ | |
| 78 | #define UF_EXCLOSE 0x1 /* auto-close on exec */ | |
| 79 | #define UF_MAPPED 0x2 /* mapped from device */ | |
| 80 | struct inode *u_cdir; /* current directory */ | |
| 81 | struct inode *u_rdir; /* root directory of current process */ | |
| 82 | struct tty *u_ttyp; /* controlling tty pointer */ | |
| 83 | dev_t u_ttyd; /* controlling tty dev */ | |
| 84 | short u_cmask; /* mask for file creation */ | |
| 85 | ||
| 86 | /* 1.5 - timing and statistics */ | |
| 87 | struct rusage u_ru; /* stats for this proc */ | |
| 88 | struct rusage u_cru; /* sum of stats for reaped children */ | |
| 89 | struct itimerval u_timer[3]; | |
| 90 | int u_XXX[3]; | |
| 91 | time_t u_start; | |
| 92 | short u_acflag; | |
| 93 | ||
| 94 | /* 1.6 - resource controls */ | |
| 95 | struct rlimit u_rlimit[RLIM_NLIMITS]; | |
| 96 | struct quota *u_quota; /* user's quota structure */ | |
| 97 | int u_qflags; /* per process quota flags */ | |
| 98 | ||
| 99 | /* BEGIN TRASH */ | |
| 100 | char u_segflg; /* 0:user D; 1:system; 2:user I */ | |
| 101 | caddr_t u_base; /* base address for IO */ | |
| 102 | unsigned int u_count; /* bytes remaining for IO */ | |
| 103 | off_t u_offset; /* offset in file for IO */ | |
| 104 | union { | |
| 105 | struct { /* header of executable file */ | |
| 106 | int Ux_mag; /* magic number */ | |
| 107 | unsigned Ux_tsize; /* text size */ | |
| 108 | unsigned Ux_dsize; /* data size */ | |
| 109 | unsigned Ux_bsize; /* bss size */ | |
| 110 | unsigned Ux_ssize; /* symbol table size */ | |
| 111 | unsigned Ux_entloc; /* entry location */ | |
| 112 | unsigned Ux_unused; | |
| 113 | unsigned Ux_relflg; | |
| 114 | } Ux_A; | |
| 115 | char ux_shell[SHSIZE]; /* #! and name of interpreter */ | |
| 116 | } u_exdata; | |
| 117 | #define ux_mag Ux_A.Ux_mag | |
| 118 | #define ux_tsize Ux_A.Ux_tsize | |
| 119 | #define ux_dsize Ux_A.Ux_dsize | |
| 120 | #define ux_bsize Ux_A.Ux_bsize | |
| 121 | #define ux_ssize Ux_A.Ux_ssize | |
| 122 | #define ux_entloc Ux_A.Ux_entloc | |
| 123 | #define ux_unused Ux_A.Ux_unused | |
| 124 | #define ux_relflg Ux_A.Ux_relflg | |
| 125 | caddr_t u_dirp; /* pathname pointer */ | |
| 126 | struct direct u_dent; /* current directory entry */ | |
| 127 | struct inode *u_pdir; /* inode of parent directory of dirp */ | |
| 128 | /* END TRASH */ | |
| 129 | struct uprof { /* profile arguments */ | |
| 130 | short *pr_base; /* buffer base */ | |
| 131 | unsigned pr_size; /* buffer size */ | |
| 132 | unsigned pr_off; /* pc offset */ | |
| 133 | unsigned pr_scale; /* pc scaling */ | |
| 134 | } u_prof; | |
| 135 | int u_stack[1]; | |
| 136 | }; | |
| 137 | ||
| 138 | /* u_eosys values */ | |
| 139 | #define JUSTRETURN 0 | |
| 140 | #define RESTARTSYS 1 | |
| 141 | #define SIMULATERTI 2 | |
| 142 | #define REALLYRETURN 3 | |
| 143 | ||
| 144 | /* u_error codes */ | |
| 145 | #include <errno.h> | |
| 146 | ||
| 147 | #ifdef KERNEL | |
| 148 | extern struct user u; | |
| 149 | extern struct user swaputl; | |
| 150 | extern struct user forkutl; | |
| 151 | extern struct user xswaputl; | |
| 152 | extern struct user xswap2utl; | |
| 153 | extern struct user pushutl; | |
| 154 | extern struct user vfutl; | |
| 155 | #endif |