minix/minix/fs/ext2/main.c
Cristiano Giuffrida 3f82ac6a4e services: Selectively enable stateful restart.
Change-Id: Ibf6afa3041013ca714e28b673abb1329cd72d2d5
2015-09-17 13:36:01 +00:00

112 lines
3.2 KiB
C

#include "fs.h"
#include "buf.h"
#include "inode.h"
#include <string.h>
#include <minix/optset.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);
EXTERN int env_argc;
EXTERN char **env_argv;
static struct optset optset_table[] = {
{ "sb", OPT_INT, &opt.block_with_super, 0 },
{ "orlov", OPT_BOOL, &opt.use_orlov, TRUE },
{ "oldalloc", OPT_BOOL, &opt.use_orlov, FALSE },
{ "mfsalloc", OPT_BOOL, &opt.mfsalloc, TRUE },
{ "reserved", OPT_BOOL, &opt.use_reserved_blocks, TRUE },
{ "prealloc", OPT_BOOL, &opt.use_prealloc, TRUE },
{ "noprealloc", OPT_BOOL, &opt.use_prealloc, FALSE },
{ NULL, 0, NULL, 0 }
};
/*===========================================================================*
* main *
*===========================================================================*/
int main(int argc, char *argv[])
{
/* This is the main routine of this service. */
unsigned short test_endian = 1;
/* SEF local startup. */
env_setargs(argc, argv);
sef_local_startup();
le_CPU = (*(unsigned char *) &test_endian == 0 ? 0 : 1);
/* Server isn't tested on big endian CPU */
ASSERT(le_CPU == 1);
/* The fsdriver library does the actual work here. */
fsdriver_task(&ext2_table);
return 0;
}
/*===========================================================================*
* sef_local_startup *
*===========================================================================*/
static void sef_local_startup()
{
/* Register init callbacks. */
sef_setcb_init_fresh(sef_cb_init_fresh);
/* 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;
/* Defaults */
opt.use_orlov = TRUE;
opt.mfsalloc = FALSE;
opt.use_reserved_blocks = FALSE;
opt.block_with_super = 0;
opt.use_prealloc = FALSE;
/* If we have been given an options string, parse options from there. */
for (i = 1; i < env_argc - 1; i++)
if (!strcmp(env_argv[i], "-o"))
optset_parse(optset_table, env_argv[++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();
/* just a small number before we find out the block size at mount time */
lmfs_buf_pool(10);
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();
}