static int
do_cd(void)
{
int ret = -1;
char name[MAX_FILE_NAME_LENGTH + 1];
char *path;
struct directory *dir;
if (read_all(STDIN, name, MAX_FILE_NAME_LENGTH) != MAX_FILE_NAME_LENGTH)
return -1;
name[MAX_FILE_NAME_LENGTH] = '\0';
if ((path = get_path_from_dir(&vfs, pwd)) == NULL)
return -1;
if ((path = append_to_path(path, name)) == NULL)
goto free_path;
if ((dir = lookup_dir(&vfs, path, 1)) == NULL)
goto free_path;
pwd = dir;
ret = 0;
free_path:
free(path);
return ret;
}
void look_thread (int type)
{
int status;
/* Execute until cancelled. */
while ( 1 ) {
/* Lock the condition variable mutex. */
status = pthread_mutex_lock ( &name_mutex );
THRCHK ( status );
/* Flag that one access has been completed. */
name_ready_p--;
/* If all accesses have been completed, broadcast a signal. */
if ( name_ready_p == 0 ) {
status = pthread_cond_broadcast ( &name_ready );
THRCHK ( status );
}
/* Wait on condition variable until there is a new name. */
do {
status = pthread_cond_wait ( &name_ready, &name_mutex );
} while ( name_ready_p <= 1 );
/* Release the condition variable mutex. */
status = pthread_mutex_unlock ( &name_mutex );
THRCHK ( status );
if ( name_ready_p == APP_EXIT )
break;
/* Perform a lookup selecting the correct server through its handle. */
if (type == 1) {
lookup_dir ( phon_bh, name, phone );
} else {
lookup_dir ( addr_bh, name, address );
}
}
}
// TODO lock!
static
errno_t add_mount( const char* path, const char *name, uufs_t *fs )
{
if( *path == '/' ) path++;
// NB! path must finish with /
if( strlen( path ) >= FS_MAX_MOUNT_PATH-1 )
return E2BIG;
if( strlen( name ) >= FS_MAX_MOUNT_PATH-1 )
return E2BIG;
hal_mutex_lock( &mm );
int i;
for( i = 0; i < FS_MAX_MOUNT; i++ )
{
// unused
if( mount[i].fs != 0 )
continue;
goto found;
}
hal_mutex_unlock( &mm );
return ENFILE;
found:
mount[i].fs = fs;
strlcpy( mount[i].path, path, FS_MAX_MOUNT_PATH );
strlcpy( mount[i].name, name, FS_MAX_MOUNT_PATH );
//if( mount[i].path[strlen(mount[i].path) - 1] != '/' )
// strcat(mount[i].path, "/" );
// Kill final slash
int rlen = strlen(mount[i].path);
if( mount[i].path[rlen - 1] == '/' )
mount[i].path[rlen - 1] = 0;
lookup_dir( &root_root, mount[i].path, 1, create_dir );
hal_mutex_unlock( &mm );
return 0;
}
