servers/devman/main.c

   1 #define _POSIX_SOURCE      1    /* tell headers to include POSIX stuff */
   2 #define _MINIX             1    /* tell headers to include MINIX stuff */
   3 #define _SYSTEM            1    /* tell headers that this is the kernel */
   4
   5 #include <minix/config.h>
   6 #include <errno.h>
   7 #include <unistd.h>
   8 #include <stdlib.h>
   9 #include <stdio.h>
  10 #include <string.h>
  11 #include <lib.h>
  12 #include <timers.h>
  13
  14 #include <minix/callnr.h>
  15 #include <minix/type.h>
  16 #include <minix/const.h>
  17 #include <minix/com.h>
  18 #include <minix/syslib.h>
  19 #include <minix/sysutil.h>
  20 #include <minix/vfsif.h>
  21 #include <minix/endpoint.h>
  22 #include <minix/sysinfo.h>
  23 #include <minix/u64.h>
  24 #include <minix/sysinfo.h>
  25 #include <minix/type.h>
  26 #include <minix/ipc.h>
  27
  28 #include <sys/time.h>
  29 #include <sys/times.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32
  33
  34 #include <minix/vtreefs.h>
  35 #include "devman.h"
  36 #include "proto.h"
  37
  38 static void init_hook(void) {
  39         static int first = 1;
  40
  41         if (first) {
  42                 devman_init_devices();
  43                 first = 0;
  44         }
  45 }
  46
  47
  48 static int message_hook (message *m)
  49 {
  50         switch (m->m_type) {
  51                 case DEVMAN_ADD_DEV:
  52                         return do_add_device(m);
  53                 case DEVMAN_DEL_DEV:
  54                         return do_del_device(m);
  55                 case DEVMAN_BIND:
  56                         return do_bind_device(m);
  57                 case DEVMAN_UNBIND:
  58                         return do_unbind_device(m);
  59                 default: return -1;
  60         }
  61 }
  62
  63 static int
  64 read_hook
  65 (struct inode *inode, off_t offset, char **ptr, size_t *len, cbdata_t cbdata)
  66 {
  67         struct devman_inode *d_inode = (struct devman_inode *) cbdata;
  68
  69         return d_inode->read_fn(ptr, len, offset, d_inode->data);
  70 }
  71
  72
  73 int main (int argc, char* argv[])
  74 {
  75
  76         struct fs_hooks hooks;
  77         struct inode_stat root_stat;
  78
  79         /* fill in the hooks */
  80         memset(&hooks, 0, sizeof(hooks));
  81         hooks.init_hook         = init_hook;
  82         hooks.read_hook         = read_hook; /* read will never be called */
  83         hooks.message_hook      = message_hook; /* handle the ds_update call */
  84
  85         root_stat.mode  = S_IFDIR | S_IRUSR | S_IRGRP | S_IROTH;
  86         root_stat.uid   = 0;
  87         root_stat.gid   = 0;
  88         root_stat.size  = 0;
  89         root_stat.dev   = NO_DEV;
  90
  91         /* limit the number of indexed entries */
  92         start_vtreefs(&hooks, 1024 , &root_stat, 0);
  93         return 0;
  94 }
  95