binfmt

A header only framework for binary file formats

benchmarks

single insert (append EntryType)

Number	Time (s)
1k	1.35
10k	12.82
100k	128.65

vector insert (append std::vector)

Number	Time (ms)
1k	1
10k	1
100k	6
1M	40

read

Number	Time (ms)
1k	0
10k	0
100k	0
1M	8

Minimal example

#include <iostream>
#include <binfmt.h>

struct LogHeader : public BinaryFileHeaderBase {
  LogHeader(): BinaryFileHeaderBase(1, 88448844) {}
};

struct LogEntry {
  char message[128];
};

using LogEntryContainer = BinaryEntryContainer<LogEntry>;
using LogFile = BinaryFile<LogHeader, LogEntry, LogEntryContainer, 1000>;

int main() {
  LogFile log("mylog.bin");

  log.append(LogEntry{"This is a log message"});
  log.append(LogEntry{"Another message"});

  std::vector<LogEntryContainer> entries;
  if (log.getAllEntries(entries)) {
    for (auto e : entries) {
      if(e.isEntryValid()) {
        std::cout << e.entry.message << std::endl;
      }
    }
  }

  return 0;
}

$ /home/nbdy/CLionProjects/binfmt/cmake-build-debug/binfmt_ex_min
This is a log message
Another message