mirror of
https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
112 lines
2.7 KiB
C++
112 lines
2.7 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "cdc_fuse_fs/mock_libfuse.h"
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#include <cassert>
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#include <cstring>
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namespace cdc_ft {
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namespace {
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MockLibFuse* g_fuse;
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}
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MockLibFuse::MockLibFuse() {
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assert(!g_fuse);
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g_fuse = this;
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}
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MockLibFuse::~MockLibFuse() {
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assert(g_fuse == this);
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g_fuse = nullptr;
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}
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void MockLibFuse::SetUid(int uid) {
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assert(g_fuse == this);
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g_fuse->context.uid = uid;
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}
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void MockLibFuse::SetGid(int gid) {
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assert(g_fuse == this);
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g_fuse->context.gid = gid;
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}
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size_t fuse_add_direntry(fuse_req_t req, char* buf, size_t bufsize,
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const char* name, const struct stat* stbuf,
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off_t off) {
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assert(g_fuse);
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if (bufsize >= sizeof(MockLibFuse::DirEntry)) {
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assert(stbuf);
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auto* entry = reinterpret_cast<MockLibFuse::DirEntry*>(buf);
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strncpy(entry->name, name, sizeof(entry->name));
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entry->name[sizeof(entry->name) - 1] = 0;
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entry->ino = stbuf->st_ino;
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entry->mode = stbuf->st_mode;
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entry->off = off;
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}
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return sizeof(MockLibFuse::DirEntry);
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}
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int fuse_reply_attr(fuse_req_t req, const struct stat* attr,
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double attr_timeout) {
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assert(g_fuse);
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assert(attr);
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g_fuse->attrs.emplace_back(*attr, attr_timeout);
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return 0;
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}
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int fuse_reply_buf(fuse_req_t req, const char* buf, size_t size) {
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assert(g_fuse);
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std::vector<char> data;
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if (buf && size > 0) {
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data.insert(data.end(), buf, buf + size);
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}
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g_fuse->buffers.push_back(std::move(data));
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return 0;
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}
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int fuse_reply_entry(fuse_req_t req, const struct fuse_entry_param* e) {
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assert(g_fuse);
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assert(e);
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g_fuse->entries.push_back(*e);
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return 0;
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}
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int fuse_reply_err(fuse_req_t req, int err) {
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assert(g_fuse);
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g_fuse->errors.push_back(err);
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return 0;
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}
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int fuse_reply_open(fuse_req_t req, const struct fuse_file_info* fi) {
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assert(g_fuse);
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assert(fi);
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g_fuse->open_files.push_back(*fi);
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return 0;
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}
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void fuse_reply_none(fuse_req_t req) {
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assert(g_fuse);
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++g_fuse->none_counter;
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}
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int fuse_reply_statfs(fuse_req_t req, const struct statvfs* stbuf) { return 0; }
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struct fuse_context* fuse_get_context() {
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assert(g_fuse);
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return &g_fuse->context;
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}
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} // namespace cdc_ft
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