diff options
Diffstat (limited to 'source/Host/common/FileCache.cpp')
| -rw-r--r-- | source/Host/common/FileCache.cpp | 183 |
1 files changed, 84 insertions, 99 deletions
diff --git a/source/Host/common/FileCache.cpp b/source/Host/common/FileCache.cpp index 96b2a2ec02af..db71813e4ffb 100644 --- a/source/Host/common/FileCache.cpp +++ b/source/Host/common/FileCache.cpp @@ -16,112 +16,97 @@ using namespace lldb_private; FileCache *FileCache::m_instance = nullptr; -FileCache & -FileCache::GetInstance() -{ - if (m_instance == nullptr) - m_instance = new FileCache(); +FileCache &FileCache::GetInstance() { + if (m_instance == nullptr) + m_instance = new FileCache(); - return *m_instance; + return *m_instance; } -lldb::user_id_t -FileCache::OpenFile(const FileSpec &file_spec, uint32_t flags, uint32_t mode, Error &error) -{ - std::string path(file_spec.GetPath()); - if (path.empty()) - { - error.SetErrorString("empty path"); - return UINT64_MAX; - } - FileSP file_sp(new File()); - error = file_sp->Open(path.c_str(), flags, mode); - if (file_sp->IsValid() == false) - return UINT64_MAX; - lldb::user_id_t fd = file_sp->GetDescriptor(); - m_cache[fd] = file_sp; - return fd; +lldb::user_id_t FileCache::OpenFile(const FileSpec &file_spec, uint32_t flags, + uint32_t mode, Error &error) { + std::string path(file_spec.GetPath()); + if (path.empty()) { + error.SetErrorString("empty path"); + return UINT64_MAX; + } + FileSP file_sp(new File()); + error = file_sp->Open(path.c_str(), flags, mode); + if (file_sp->IsValid() == false) + return UINT64_MAX; + lldb::user_id_t fd = file_sp->GetDescriptor(); + m_cache[fd] = file_sp; + return fd; } -bool -FileCache::CloseFile(lldb::user_id_t fd, Error &error) -{ - if (fd == UINT64_MAX) - { - error.SetErrorString("invalid file descriptor"); - return false; - } - FDToFileMap::iterator pos = m_cache.find(fd); - if (pos == m_cache.end()) - { - error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); - return false; - } - FileSP file_sp = pos->second; - if (!file_sp) - { - error.SetErrorString("invalid host backing file"); - return false; - } - error = file_sp->Close(); - m_cache.erase(pos); - return error.Success(); +bool FileCache::CloseFile(lldb::user_id_t fd, Error &error) { + if (fd == UINT64_MAX) { + error.SetErrorString("invalid file descriptor"); + return false; + } + FDToFileMap::iterator pos = m_cache.find(fd); + if (pos == m_cache.end()) { + error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); + return false; + } + FileSP file_sp = pos->second; + if (!file_sp) { + error.SetErrorString("invalid host backing file"); + return false; + } + error = file_sp->Close(); + m_cache.erase(pos); + return error.Success(); } -uint64_t -FileCache::WriteFile(lldb::user_id_t fd, uint64_t offset, const void *src, uint64_t src_len, Error &error) -{ - if (fd == UINT64_MAX) - { - error.SetErrorString("invalid file descriptor"); - return UINT64_MAX; - } - FDToFileMap::iterator pos = m_cache.find(fd); - if (pos == m_cache.end()) - { - error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); - return false; - } - FileSP file_sp = pos->second; - if (!file_sp) - { - error.SetErrorString("invalid host backing file"); - return UINT64_MAX; - } - if (static_cast<uint64_t>(file_sp->SeekFromStart(offset, &error)) != offset || error.Fail()) - return UINT64_MAX; - size_t bytes_written = src_len; - error = file_sp->Write(src, bytes_written); - if (error.Fail()) - return UINT64_MAX; - return bytes_written; +uint64_t FileCache::WriteFile(lldb::user_id_t fd, uint64_t offset, + const void *src, uint64_t src_len, Error &error) { + if (fd == UINT64_MAX) { + error.SetErrorString("invalid file descriptor"); + return UINT64_MAX; + } + FDToFileMap::iterator pos = m_cache.find(fd); + if (pos == m_cache.end()) { + error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); + return false; + } + FileSP file_sp = pos->second; + if (!file_sp) { + error.SetErrorString("invalid host backing file"); + return UINT64_MAX; + } + if (static_cast<uint64_t>(file_sp->SeekFromStart(offset, &error)) != offset || + error.Fail()) + return UINT64_MAX; + size_t bytes_written = src_len; + error = file_sp->Write(src, bytes_written); + if (error.Fail()) + return UINT64_MAX; + return bytes_written; } -uint64_t -FileCache::ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst, uint64_t dst_len, Error &error) -{ - if (fd == UINT64_MAX) - { - error.SetErrorString("invalid file descriptor"); - return UINT64_MAX; - } - FDToFileMap::iterator pos = m_cache.find(fd); - if (pos == m_cache.end()) - { - error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); - return false; - } - FileSP file_sp = pos->second; - if (!file_sp) - { - error.SetErrorString("invalid host backing file"); - return UINT64_MAX; - } - if (static_cast<uint64_t>(file_sp->SeekFromStart(offset, &error)) != offset || error.Fail()) - return UINT64_MAX; - size_t bytes_read = dst_len; - error = file_sp->Read(dst, bytes_read); - if (error.Fail()) - return UINT64_MAX; - return bytes_read; +uint64_t FileCache::ReadFile(lldb::user_id_t fd, uint64_t offset, void *dst, + uint64_t dst_len, Error &error) { + if (fd == UINT64_MAX) { + error.SetErrorString("invalid file descriptor"); + return UINT64_MAX; + } + FDToFileMap::iterator pos = m_cache.find(fd); + if (pos == m_cache.end()) { + error.SetErrorStringWithFormat("invalid host file descriptor %" PRIu64, fd); + return false; + } + FileSP file_sp = pos->second; + if (!file_sp) { + error.SetErrorString("invalid host backing file"); + return UINT64_MAX; + } + if (static_cast<uint64_t>(file_sp->SeekFromStart(offset, &error)) != offset || + error.Fail()) + return UINT64_MAX; + size_t bytes_read = dst_len; + error = file_sp->Read(dst, bytes_read); + if (error.Fail()) + return UINT64_MAX; + return bytes_read; } |