1 #include "file-io.hpp" 2 3 #include <fcntl.h> 4 #include <sys/file.h> 5 #include <unistd.h> 6 7 #include <stdplus/fd/atomic.hpp> 8 #include <stdplus/fd/create.hpp> 9 #include <stdplus/fd/fmt.hpp> 10 #include <stdplus/fd/managed.hpp> 11 #include <stdplus/fd/ops.hpp> 12 #include <stdplus/print.hpp> 13 14 #include <cerrno> 15 #include <fstream> 16 #include <iostream> 17 #include <string> 18 19 using ::stdplus::fd::ManagedFd; 20 using std::literals::string_view_literals::operator""sv; 21 22 // Function to read contents from a file (with locking) fileRead(const fs::path & filename)23 std::string fileRead(const fs::path& filename) 24 { 25 // Open the file in read mode 26 ManagedFd fd = stdplus::fd::open(std::string(filename).c_str(), 27 stdplus::fd::OpenAccess::ReadOnly); 28 return stdplus::fd::readAll<std::string>(fd); 29 } 30 31 // Function to write contents to a file atomically fileWrite(const fs::path & filename,const std::string & data)32 void fileWrite(const fs::path& filename, const std::string& data) 33 { 34 stdplus::fd::AtomicWriter writer(filename, 0644); 35 stdplus::fd::FormatBuffer out(writer); 36 out.appends(data); 37 out.flush(); 38 writer.commit(); 39 } 40