int vn_fromfd(int fd, char *path, int flags, struct vnode **vpp, boolean_t fromfd)
{
vnode_t *vp;
*vpp = vp = kmem_cache_alloc(vnode_cache, KM_SLEEP);
memset(vp, 0, sizeof(vnode_t));
if (fstat64(fd, &vp->v_stat) == -1) {
close(fd);
return (errno);
}
(void) fcntl(fd, F_SETFD, FD_CLOEXEC);
vp->v_fd = fd;
if(S_ISBLK(vp->v_stat.st_mode)) {
/* LINUX */
if(ioctl(fd, BLKGETSIZE64, &vp->v_size) != 0)
return errno;
} else
vp->v_size = vp->v_stat.st_size;
vp->v_path = strdup(path);
vp->v_type = VNON;
if(fromfd)
vn_setops(vp, fd_fvnodeops);
else
vn_setops(vp, root_fvnodeops);
if(S_ISREG(vp->v_stat.st_mode)) {
vp->v_type = VREG;
if (flags & FREAD)
atomic_add_32(&((*vpp)->v_rdcnt), 1);
if (flags & FWRITE)
atomic_add_32(&((*vpp)->v_wrcnt), 1);
} else if(S_ISDIR(vp->v_stat.st_mode))
vp->v_type = VDIR;
else if(S_ISCHR(vp->v_stat.st_mode))
vp->v_type = VCHR;
else if(S_ISBLK(vp->v_stat.st_mode))
vp->v_type = VBLK;
else if(S_ISFIFO(vp->v_stat.st_mode))
vp->v_type = VFIFO;
else if(S_ISLNK(vp->v_stat.st_mode))
vp->v_type = VLNK;
else if(S_ISSOCK(vp->v_stat.st_mode))
vp->v_type = VSOCK;
VERIFY(vp->v_type != VNON);
zmutex_init(&vp->v_lock);
rwst_init(&vp->v_vfsmhlock.ve_lock, NULL, RW_DEFAULT, NULL);
vp->v_count = 1;
vp->v_vfsp = rootvfs;
/*fprintf(stderr, "VNode %p created at vn_open (%s)\n", *vpp, path);*/
return (0);
}
void ztst_mutex(){
zmutex_t mtx;
zmutex_init(&mtx);
zmutex_lock(&mtx);
zmutex_unlock(&mtx);
zmutex_uninit(&mtx);
#ifdef ZSYS_POSIX
zmutex_lock(&mtx);
zmutex_unlock(&mtx);
#endif
}
struct sys_sem *
sys_sem_new_internal(XaxMachinery *xm, u8_t count)
{
struct sys_sem *sem;
sem = (struct sys_sem *) cheesy_malloc(&xm->arena, sizeof(struct sys_sem));
if (sem != NULL) {
sem->xm = xm;
sem->c = count;
zcond_init(&sem->zcond);
zmutex_init(&sem->zmutex);
sem->verbose = false; // default no debug msgs
}
return sem;
}
static int zthr_listpush(zthr_t* attr){
int ret = ZEOK;
if( NULL == zg_thr_head ){
// first thread not need lock, and init list
if( ZEOK != (ret = zmutex_init(&zg_thr_mtx)))return ret;
zg_thr_head = attr;
attr->next = NULL;
++zg_thr_name;
}else{
zmutex_lock(&zg_thr_mtx);
attr->next = zg_thr_head;
zg_thr_head = attr;
++zg_thr_name;
zmutex_unlock(&zg_thr_mtx);
}
return ret;
}