50b06261b6
Implemented by changing write_map to accept a WMAP_FREE flag. In that case, it doesn't update the datablock (creating indirect zones as necessary) pointer, but it frees the datablock if present. Also it frees the single and double indirect blocks if unused. This makes the implementation of truncate_inode() simpler. truncate_inode() now accepts a truncation length which makes implementing truncate() and ftruncate() simple. This also allowed implementing the F_FREESP fcntl().
119 lines
3.2 KiB
C
119 lines
3.2 KiB
C
/* This file contains the table used to map system call numbers onto the
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* routines that perform them.
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*/
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#define _TABLE
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#include "fs.h"
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include "buf.h"
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#include "file.h"
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#include "fproc.h"
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#include "inode.h"
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#include "lock.h"
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#include "super.h"
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PUBLIC _PROTOTYPE (int (*call_vec[]), (void) ) = {
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no_sys, /* 0 = unused */
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do_exit, /* 1 = exit */
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do_fork, /* 2 = fork */
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do_read, /* 3 = read */
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do_write, /* 4 = write */
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do_open, /* 5 = open */
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do_close, /* 6 = close */
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no_sys, /* 7 = wait */
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do_creat, /* 8 = creat */
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do_link, /* 9 = link */
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do_unlink, /* 10 = unlink */
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no_sys, /* 11 = waitpid */
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do_chdir, /* 12 = chdir */
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no_sys, /* 13 = time */
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do_mknod, /* 14 = mknod */
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do_chmod, /* 15 = chmod */
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do_chown, /* 16 = chown */
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no_sys, /* 17 = break */
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do_stat, /* 18 = stat */
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do_lseek, /* 19 = lseek */
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no_sys, /* 20 = getpid */
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do_mount, /* 21 = mount */
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do_umount, /* 22 = umount */
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do_set, /* 23 = setuid */
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no_sys, /* 24 = getuid */
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do_stime, /* 25 = stime */
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no_sys, /* 26 = ptrace */
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no_sys, /* 27 = alarm */
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do_fstat, /* 28 = fstat */
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no_sys, /* 29 = pause */
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do_utime, /* 30 = utime */
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no_sys, /* 31 = (stty) */
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no_sys, /* 32 = (gtty) */
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do_access, /* 33 = access */
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no_sys, /* 34 = (nice) */
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no_sys, /* 35 = (ftime) */
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do_sync, /* 36 = sync */
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no_sys, /* 37 = kill */
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do_rename, /* 38 = rename */
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do_mkdir, /* 39 = mkdir */
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do_unlink, /* 40 = rmdir */
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do_dup, /* 41 = dup */
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do_pipe, /* 42 = pipe */
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no_sys, /* 43 = times */
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no_sys, /* 44 = (prof) */
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do_slink, /* 45 = symlink */
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do_set, /* 46 = setgid */
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no_sys, /* 47 = getgid */
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no_sys, /* 48 = (signal)*/
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do_rdlink, /* 49 = readlink*/
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do_lstat, /* 50 = lstat */
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no_sys, /* 51 = (acct) */
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no_sys, /* 52 = (phys) */
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no_sys, /* 53 = (lock) */
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do_ioctl, /* 54 = ioctl */
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do_fcntl, /* 55 = fcntl */
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no_sys, /* 56 = (mpx) */
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no_sys, /* 57 = unused */
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no_sys, /* 58 = unused */
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do_exec, /* 59 = execve */
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do_umask, /* 60 = umask */
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do_chroot, /* 61 = chroot */
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do_setsid, /* 62 = setsid */
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no_sys, /* 63 = getpgrp */
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no_sys, /* 64 = KSIG: signals originating in the kernel */
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do_unpause, /* 65 = UNPAUSE */
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no_sys, /* 66 = unused */
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do_revive, /* 67 = REVIVE */
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no_sys, /* 68 = TASK_REPLY */
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no_sys, /* 69 = unused */
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no_sys, /* 70 = unused */
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no_sys, /* 71 = si */
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no_sys, /* 72 = sigsuspend */
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no_sys, /* 73 = sigpending */
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no_sys, /* 74 = sigprocmask */
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no_sys, /* 75 = sigreturn */
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do_reboot, /* 76 = reboot */
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do_svrctl, /* 77 = svrctl */
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no_sys, /* 78 = unused */
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do_getsysinfo, /* 79 = getsysinfo */
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no_sys, /* 80 = unused */
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do_devctl, /* 81 = devctl */
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do_fstatfs, /* 82 = fstatfs */
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no_sys, /* 83 = memalloc */
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no_sys, /* 84 = memfree */
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do_select, /* 85 = select */
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do_fchdir, /* 86 = fchdir */
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do_fsync, /* 87 = fsync */
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no_sys, /* 88 = getpriority */
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no_sys, /* 89 = setpriority */
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no_sys, /* 90 = gettimeofday */
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no_sys, /* 91 = seteuid */
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no_sys, /* 92 = setegid */
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do_truncate, /* 93 = truncate */
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do_ftruncate, /* 94 = truncate */
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};
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/* This should not fail with "array size is negative": */
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extern int dummy[sizeof(call_vec) == NCALLS * sizeof(call_vec[0]) ? 1 : -1];
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