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#include <u.h>
#include <libc.h>
#include <libsec.h>
#include <thread.h>
#include "dat.h"
#include "fns.h"
char Eio[] = "i/o error";
char Enotadir[] = "not a directory";
char Enoent[] = "not found";
char Einval[] = "invalid operation";
char Eperm[] = "permission denied";
char Eexists[] = "file exists";
char Elocked[] = "file locked";
void*
emalloc(int c)
{
void *v;
v = mallocz(c, 1);
if(v == 0)
sysfatal("malloc: %r");
setmalloctag(v, getcallerpc(&c));
return v;
}
ThrData *
getthrdata(void)
{
ThrData **v;
v = (ThrData **) threaddata();
if(*v == nil){
*v = emalloc(sizeof(**v));
(*v)->resp = chancreate(sizeof(void *), 0);
}
return *v;
}
Fs *fsmain;
int
dprint(char *fmt, ...)
{
va_list va;
int rc;
va_start(va, fmt);
rc = vfprint(2, fmt, va);
va_end(va);
return rc;
}
static void
syncproc(void *)
{
for(;;){
sync(0);
sleep(SYNCINTERVAL);
}
}
void
usage(void)
{
fprint(2, "usage: %s [-rsS] [-m mem] [-n service] -f dev\n", argv0);
exits("usage");
}
void
threadmain(int argc, char **argv)
{
Dev *d;
char *file, *service;
int doream, flags, stdio, nbuf;
doream = 0;
stdio = 0;
flags = FSNOAUTH;
service = "fs";
file = nil;
nbuf = 10;
ARGBEGIN {
case 'A': flags &= ~FSNOAUTH; break;
case 'r': doream++; break;
case 'S': flags |= FSNOPERM | FSCHOWN; break;
case 's': stdio++; break;
case 'f': file = strdup(EARGF(usage())); break;
case 'n': service = strdup(EARGF(usage())); break;
case 'm':
nbuf = muldiv(atoi(EARGF(usage())), 1048576, sizeof(Buf));
if(nbuf < 10)
nbuf = 10;
break;
default: usage();
} ARGEND;
rfork(RFNOTEG);
bufinit(nbuf);
if(file == nil)
sysfatal("no default file");
if(argc != 0)
usage();
d = newdev(file);
if(d == nil)
sysfatal("newdev: %r");
fsmain = initfs(d, doream, flags);
if(fsmain == nil)
sysfatal("fsinit: %r");
initcons(service);
proccreate(syncproc, nil, mainstacksize);
start9p(service, stdio);
threadexits(nil);
}
void
shutdown(void)
{
wlock(fsmain);
sync(1);
dprint("hjfs: ending\n");
sleep(1000);
sync(1);
threadexitsall(nil);
}
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