Green-Sky/solanaceae_message3
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get file rw working

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Green Sky 2023-08-17 22:40:46 +02:00
parent c73e429df1
commit 53d65a0685
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1 changed files with 15 additions and 8 deletions
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23
solanaceae/message3/file_rw_file.hpp
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@ -8,13 +8,20 @@
struct FileRWFile : public FileI { struct FileRWFile : public FileI {
std::fstream _file; std::fstream _file;
//FileWFile(std::string_view file_path, uint64_t file_size) : _file(static_cast<std::string>(file_path), std::ios::binary) { // dont truncate by default
//_file_size = file_size; FileRWFile(std::string_view file_path, uint64_t file_size, bool trunc = false)
: _file(
static_cast<std::string>(file_path),
std::ios::in |
std::ios::out |
(trunc ? std::ios::trunc | std::ios::binary : std::ios::binary) // hacky but type safe
) {
_file_size = file_size;
//if (!_file.is_open()) { if (!_file.is_open()) {
//return; // TODO: error return; // TODO: error
//} }
//} }
virtual ~FileRWFile(void) {} virtual ~FileRWFile(void) {}
@ -28,7 +35,7 @@ struct FileRWFile : public FileI {
} }
// TODO: error check // TODO: error check
_file.seekg(pos); _file.seekg(pos, std::ios::beg);
#if 0 #if 0
std::vector<uint8_t> chunk; std::vector<uint8_t> chunk;
@ -59,7 +66,7 @@ struct FileRWFile : public FileI {
// if out-of-order, seek // if out-of-order, seek
if (_file.tellp() != int64_t(pos)) { if (_file.tellp() != int64_t(pos)) {
// TODO: error check // TODO: error check
_file.seekp(pos); _file.seekp(pos, std::ios::beg);
} }
_file.write(reinterpret_cast<const char*>(data.data()), data.size()); _file.write(reinterpret_cast<const char*>(data.data()), data.size());