lthn/blockchain
2
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

pod_array_file_container::clear() implemented

Browse source
This commit is contained in:
sowle 2025-07-03 15:17:12 +02:00
parent 187a830f58
commit d5890e3c7f
No known key found for this signature in database
GPG key ID: C07A24B2D89D49FC
1 changed files with 29 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
src/common/pod_array_file_container.h
View file

@ -67,6 +67,7 @@ namespace tools
*p_reason = std::string("file was corrupted, truncated: ") + epee::string_tools::num_to_string_fast(file_size) + " -> " + epee::string_tools::num_to_string_fast(corrected_size);
}
m_filename = filename;
return true;
}
@ -77,7 +78,7 @@ namespace tools
bool push_back(const pod_t& item)
{
if (!m_stream.is_open() || (m_stream.rdstate() != std::ios::goodbit && m_stream.rdstate() != std::ios::eofbit))
if (!is_opened_and_in_good_state())
return false;
m_stream.seekp(0, std::ios_base::end);
@ -93,7 +94,7 @@ namespace tools
bool get_item(size_t index, pod_t& result) const
{
if (!m_stream.is_open() || (m_stream.rdstate() != std::ios::goodbit && m_stream.rdstate() != std::ios::eofbit))
if (!is_opened_and_in_good_state())
return false;
size_t offset = index * sizeof result;
@ -108,20 +109,45 @@ namespace tools
size_t size_bytes() const
{
if (!m_stream.is_open() || (m_stream.rdstate() != std::ios::goodbit && m_stream.rdstate() != std::ios::eofbit))
if (!is_opened_and_in_good_state())
return 0;
m_stream.seekg(0, std::ios_base::end);
return m_stream.tellg();
}
bool is_opened_and_in_good_state() const
{
if (!m_stream.is_open())
return false;
if (m_stream.rdstate() != std::ios::goodbit && m_stream.rdstate() != std::ios::eofbit)
return false;
return true;
}
size_t size() const
{
return size_bytes() / sizeof(pod_t);
}
bool clear()
{
if (!is_opened_and_in_good_state())
return false;
// close and re-open stream with trunc bit
m_stream.close();
m_stream.open(m_filename, std::ios::binary | std::ios::trunc | std::ios::in);
if (m_stream.rdstate() != std::ios::eofbit)
return false;
return true;
}
private:
mutable boost::filesystem::fstream m_stream;
std::wstring m_filename;
};
} // namespace tools