minix/servers/devman/main.c

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#define _POSIX_SOURCE 1 /* tell headers to include POSIX stuff */
#define _MINIX 1 /* tell headers to include MINIX stuff */
#define _SYSTEM 1 /* tell headers that this is the kernel */
#include <minix/config.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <lib.h>
#include <timers.h>
#include <minix/callnr.h>
#include <minix/type.h>
#include <minix/const.h>
#include <minix/com.h>
#include <minix/syslib.h>
#include <minix/sysutil.h>
#include <minix/vfsif.h>
#include <minix/endpoint.h>
#include <minix/sysinfo.h>
#include <minix/u64.h>
#include <minix/sysinfo.h>
#include <minix/type.h>
#include <minix/ipc.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <minix/vtreefs.h>
#include "devman.h"
#include "proto.h"
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static void init_hook(void) {
static int first = 1;
if (first) {
devman_init_devices();
first = 0;
}
}
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static int message_hook (message *m)
{
switch (m->m_type) {
case DEVMAN_ADD_DEV:
return do_add_device(m);
case DEVMAN_DEL_DEV:
return do_del_device(m);
case DEVMAN_BIND:
return do_bind_device(m);
case DEVMAN_UNBIND:
return do_unbind_device(m);
default: return -1;
}
}
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static int
read_hook
(struct inode *inode, off_t offset, char **ptr, size_t *len, cbdata_t cbdata)
{
struct devman_inode *d_inode = (struct devman_inode *) cbdata;
return d_inode->read_fn(ptr, len, offset, d_inode->data);
}
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int main (int argc, char* argv[])
{
struct fs_hooks hooks;
struct inode_stat root_stat;
/* fill in the hooks */
hooks.init_hook = &init_hook;
hooks.lookup_hook = NULL; /* use the default behavior of lookup */
hooks.getdents_hook = NULL; /* use the default behavior of getdents */
hooks.read_hook = read_hook; /* read hook will never be called */
hooks.rdlink_hook = NULL; /* there are no symbolic links in devfs */
hooks.message_hook = message_hook; /* handle the ds_update call */
root_stat.mode = S_IFDIR | S_IRUSR | S_IRGRP | S_IROTH;
root_stat.uid = 0;
root_stat.gid = 0;
root_stat.size = 0;
root_stat.dev = NO_DEV;
/* limit the number of indexed entries */
start_vtreefs(&hooks, 1024 , &root_stat, 0);
return 0;
}