Host/common/File.cpp

106 Status File::Read(void *buf, size_t &num_bytes) {
109 Status File::Write(const void *buf, size_t &num_bytes) {
148 Status File::Read(void *dst, size_t &num_bytes, off_t &offset) {
152 Status File::Write(const void *src, size_t &num_bytes, off_t &offset) {
518 Status NativeFile::Read(void *buf, size_t &num_bytes) {
522   if (num_bytes > MAX_READ_SIZE) {
524     size_t bytes_left = num_bytes;
525     // Init the num_bytes read to zero
526     num_bytes = 0;
535       error = Read(p + num_bytes, curr_num_bytes);
538       num_bytes += curr_num_bytes;
554         llvm::sys::RetryAfterSignal(-1, ::read, m_descriptor, buf, num_bytes);
557       num_bytes = 0;
559       num_bytes = bytes_read;
564     bytes_read = ::fread(buf, 1, num_bytes, m_stream);
571       num_bytes = 0;
573       num_bytes = bytes_read;
577   num_bytes = 0;
582 Status NativeFile::Write(const void *buf, size_t &num_bytes) {
586   if (num_bytes > MAX_WRITE_SIZE) {
588     size_t bytes_left = num_bytes;
589     // Init the num_bytes written to zero
590     num_bytes = 0;
599       error = Write(p + num_bytes, curr_num_bytes);
602       num_bytes += curr_num_bytes;
618         llvm::sys::RetryAfterSignal(-1, ::write, m_descriptor, buf, num_bytes);
621       num_bytes = 0;
623       num_bytes = bytes_written;
628     bytes_written = ::fwrite(buf, 1, num_bytes, m_stream);
635       num_bytes = 0;
637       num_bytes = bytes_written;
641   num_bytes = 0;
646 Status NativeFile::Read(void *buf, size_t &num_bytes, off_t &offset) {
650   if (num_bytes > MAX_READ_SIZE) {
652     size_t bytes_left = num_bytes;
653     // Init the num_bytes read to zero
654     num_bytes = 0;
663       error = Read(p + num_bytes, curr_num_bytes, offset);
666       num_bytes += curr_num_bytes;
683         llvm::sys::RetryAfterSignal(-1, ::pread, fd, buf, num_bytes, offset);
685       num_bytes = 0;
689       num_bytes = bytes_read;
692     num_bytes = 0;
699   error = Read(buf, num_bytes);
706 Status NativeFile::Write(const void *buf, size_t &num_bytes, off_t &offset) {
710   if (num_bytes > MAX_WRITE_SIZE) {
712     size_t bytes_left = num_bytes;
713     // Init the num_bytes written to zero
714     num_bytes = 0;
723       error = Write(p + num_bytes, curr_num_bytes, offset);
726       num_bytes += curr_num_bytes;
743         llvm::sys::RetryAfterSignal(-1, ::pwrite, m_descriptor, buf, num_bytes, offset);
745       num_bytes = 0;
749       num_bytes = bytes_written;
755     error = Write(buf, num_bytes);
764     num_bytes = 0;