Ejemplos de trunk_update_entry en C++ (Cpp)

Ejemplo n.º 1

Archivo: farm.c Proyecto: yaekumo/sheepdog

static int farm_write(uint64_t oid, struct siocb *iocb)
{
    ssize_t size = xpwrite(iocb->fd, iocb->buf, iocb->length, iocb->offset);

    if (size != iocb->length)
        return SD_RES_EIO;

    trunk_update_entry(oid);
    return SD_RES_SUCCESS;
}

Ejemplo n.º 2

Archivo: farm.c Proyecto: yamt/sheepdog

static int farm_write(uint64_t oid, struct siocb *iocb, int create)
{
	int flags = def_open_flags, fd, ret = SD_RES_SUCCESS;
	char path[PATH_MAX];
	ssize_t size;

	if (iocb->epoch < sys_epoch()) {
		dprintf("%"PRIu32" sys %"PRIu32"\n", iocb->epoch, sys_epoch());
		return SD_RES_OLD_NODE_VER;
	}
	if (!is_data_obj(oid))
		flags &= ~O_DIRECT;

	if (create)
		flags |= O_CREAT | O_TRUNC;

	sprintf(path, "%s%016"PRIx64, obj_path, oid);
	fd = open(path, flags, def_fmode);
	if (fd < 0)
		return err_to_sderr(oid, errno);

	if (flock(fd, LOCK_EX) < 0) {
		ret = SD_RES_EIO;
		eprintf("%m\n");
		goto out;
	}
	if (create && !(iocb->flags & SD_FLAG_CMD_COW)) {
		ret = prealloc(fd, get_objsize(oid));
		if (ret != SD_RES_SUCCESS) {
			if (flock(fd, LOCK_UN) < 0) {
				ret = SD_RES_EIO;
				eprintf("%m\n");
				goto out;
			}
			goto out;
		}
	}
	size = xpwrite(fd, iocb->buf, iocb->length, iocb->offset);
	if (flock(fd, LOCK_UN) < 0) {
		ret = SD_RES_EIO;
		eprintf("%m\n");
		goto out;
	}
	if (size != iocb->length) {
		eprintf("%m\n");
		ret = SD_RES_EIO;
		goto out;
	}

	trunk_update_entry(oid);
out:
	close(fd);
	return ret;
}