xref: /minix3/minix/fs/mfs/main.c (revision 3f82ac6a4e188419336747098d0d6616cd2f3d3d)

#include "fs.h"
#include "buf.h"
#include "inode.h"


/* SEF functions and variables. */
static void sef_local_startup(void);
static int sef_cb_init_fresh(int type, sef_init_info_t *info);
static void sef_cb_signal_handler(int signo);

/*===========================================================================*
 *				main                                         *
 *===========================================================================*/
int main(int argc, char *argv[])
{
/* This is the main routine of this service. */

  /* SEF local startup. */
  env_setargs(argc, argv);
  sef_local_startup();

  /* The fsdriver library does the actual work here. */
  fsdriver_task(&mfs_table);

  return(0);
}

/*===========================================================================*
 *			       sef_local_startup			     *
 *===========================================================================*/
static void sef_local_startup()
{
  /* Register init callbacks. */
  sef_setcb_init_fresh(sef_cb_init_fresh);
  sef_setcb_init_restart(SEF_CB_INIT_RESTART_STATEFUL);

  /* Register signal callbacks. */
  sef_setcb_signal_handler(sef_cb_signal_handler);

  /* Let SEF perform startup. */
  sef_startup();
}

/*===========================================================================*
 *		            sef_cb_init_fresh                                *
 *===========================================================================*/
static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
{
/* Initialize the Minix file server. */
  int i;

  lmfs_may_use_vmcache(1);

  /* Init inode table */
  for (i = 0; i < NR_INODES; ++i) {
	inode[i].i_count = 0;
	cch[i] = 0;
  }

  init_inode_cache();

  lmfs_buf_pool(DEFAULT_NR_BUFS);

  return(OK);
}

/*===========================================================================*
 *		           sef_cb_signal_handler                             *
 *===========================================================================*/
static void sef_cb_signal_handler(int signo)
{
  /* Only check for termination signal, ignore anything else. */
  if (signo != SIGTERM) return;

  fs_sync();

  fsdriver_terminate();
}


#if 0
/*===========================================================================*
 *				cch_check				     *
 *===========================================================================*/
static void cch_check(void)
{
  int i;

  for (i = 0; i < NR_INODES; ++i) {
	if (inode[i].i_count != cch[i] && req_nr != REQ_GETNODE &&
	    req_nr != REQ_PUTNODE && req_nr != REQ_READSUPER &&
	    req_nr != REQ_MOUNTPOINT && req_nr != REQ_UNMOUNT &&
	    req_nr != REQ_SYNC && req_nr != REQ_LOOKUP) {
		printf("MFS(%d) inode(%lu) cc: %d req_nr: %d\n", sef_self(),
			inode[i].i_num, inode[i].i_count - cch[i], req_nr);
	}

	cch[i] = inode[i].i_count;
  }
}
#endif