-
- simgrid::surf::Storage* st = nullptr;
- s_mount_t mnt;
- unsigned int cursor;
- size_t longest_prefix_length = 0;
- char* path = nullptr;
- char* file_mount_name = nullptr;
- char* mount_name = nullptr;
-
- XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, piface_->cname());
- xbt_dynar_foreach (storage_, cursor, mnt) {
- XBT_DEBUG("See '%s'", mnt.name);
- file_mount_name = (char*)xbt_malloc((strlen(mnt.name) + 1));
- strncpy(file_mount_name, fullpath, strlen(mnt.name) + 1);
- file_mount_name[strlen(mnt.name)] = '\0';
-
- if (!strcmp(file_mount_name, mnt.name) &&
- strlen(mnt.name) > longest_prefix_length) { /* The current mount name is found in the full path and is
- bigger than the previous*/
- longest_prefix_length = strlen(mnt.name);
- st = static_cast<simgrid::surf::Storage*>(mnt.storage);
- }
- free(file_mount_name);
- }
- if (longest_prefix_length > 0) { /* Mount point found, split fullpath into mount_name and path+filename*/
- path = (char*)xbt_malloc((strlen(fullpath) - longest_prefix_length + 1));
- mount_name = (char*)xbt_malloc((longest_prefix_length + 1));
- strncpy(mount_name, fullpath, longest_prefix_length + 1);
- strncpy(path, fullpath + longest_prefix_length, strlen(fullpath) - longest_prefix_length + 1);
- path[strlen(fullpath) - longest_prefix_length] = '\0';
- mount_name[longest_prefix_length] = '\0';
- } else
- xbt_die("Can't find mount point for '%s' on '%s'", fullpath, piface_->cname());
-
- XBT_DEBUG("OPEN %s on disk '%s'", path, st->cname());
- Action* action = st->open((const char*)mount_name, (const char*)path);
- free((char*)path);
- free((char*)mount_name);
- return action;
-}
-
-Action* HostImpl::close(surf_file_t fd)
-{
- simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
- XBT_DEBUG("CLOSE %s on disk '%s'", fd->name, st->cname());
- return st->close(fd);
-}
-
-Action* HostImpl::read(surf_file_t fd, sg_size_t size)
-{
- simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
- XBT_DEBUG("READ %s on disk '%s'", fd->name, st->cname());
- return st->read(fd, size);
-}
-
-Action* HostImpl::write(surf_file_t fd, sg_size_t size)
-{
- simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
- XBT_DEBUG("WRITE %s on disk '%s'", fd->name, st->cname());
- return st->write(fd, size);
-}
-
-int HostImpl::unlink(surf_file_t fd)
-{
- if (!fd) {
- XBT_WARN("No such file descriptor. Impossible to unlink");
- return -1;
- } else {
-
- simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
- /* Check if the file is on this storage */
- if (!xbt_dict_get_or_null(st->content_, fd->name)) {
- XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name, st->cname());
- return -1;
- } else {
- XBT_DEBUG("UNLINK %s on disk '%s'", fd->name, st->cname());
- st->usedSize_ -= fd->size;
-
- // Remove the file from storage
- xbt_dict_remove(st->content_, fd->name);
-
- xbt_free(fd->name);
- xbt_free(fd->mount);
- xbt_free(fd);
- return 0;
- }
- }
-}
-
-sg_size_t HostImpl::getSize(surf_file_t fd)
-{
- return fd->size;
-}
-
-xbt_dynar_t HostImpl::getInfo(surf_file_t fd)
-{
- simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
- sg_size_t* psize = xbt_new(sg_size_t, 1);
- *psize = fd->size;
- xbt_dynar_t info = xbt_dynar_new(sizeof(void*), nullptr);
- xbt_dynar_push_as(info, sg_size_t*, psize);
- xbt_dynar_push_as(info, void*, fd->mount);
- xbt_dynar_push_as(info, void*, (void*)st->cname());
- xbt_dynar_push_as(info, void*, st->typeId_);
- xbt_dynar_push_as(info, void*, st->contentType_);
-
- return info;
-}
-
-sg_size_t HostImpl::fileTell(surf_file_t fd)
-{
- return fd->current_position;
-}
-
-int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin)
-{
-
- switch (origin) {
- case SEEK_SET:
- fd->current_position = offset;
- return 0;
- case SEEK_CUR:
- fd->current_position += offset;
- return 0;
- case SEEK_END:
- fd->current_position = fd->size + offset;
- return 0;
- default:
- return -1;
- }
-}
-
-int HostImpl::fileMove(surf_file_t fd, const char* fullpath)
-{
- /* Check if the new full path is on the same mount point */
- if (!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
- sg_size_t* psize = (sg_size_t*)xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->content_, fd->name);
- if (psize) { // src file exists
- sg_size_t* new_psize = xbt_new(sg_size_t, 1);
- *new_psize = *psize;
- xbt_dict_remove(findStorageOnMountList(fd->mount)->content_, fd->name);
- char* path = (char*)xbt_malloc((strlen(fullpath) - strlen(fd->mount) + 1));
- strncpy(path, fullpath + strlen(fd->mount), strlen(fullpath) - strlen(fd->mount) + 1);
- xbt_dict_set(findStorageOnMountList(fd->mount)->content_, path, new_psize, nullptr);
- XBT_DEBUG("Move file from %s to %s, size '%llu'", fd->name, fullpath, *psize);
- free(path);
- return 0;
- } else {
- XBT_WARN("File %s doesn't exist", fd->name);
- return -1;
- }
- } else {
- XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.", fullpath, fd->mount);
- return -1;
- }