diff options
| -rw-r--r-- | fastos/src/vespa/fastos/linux_file.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fastos/src/vespa/fastos/linux_file.cpp b/fastos/src/vespa/fastos/linux_file.cpp index 27beb1242d1..f1936ede2da 100644 --- a/fastos/src/vespa/fastos/linux_file.cpp +++ b/fastos/src/vespa/fastos/linux_file.cpp @@ -37,7 +37,18 @@ FastOS_Linux_File::FastOS_Linux_File(const char *filename) ssize_t FastOS_Linux_File::readInternal(int fh, void *buffer, size_t length, int64_t readOffset) { - return File_RW_Ops::pread(fh, buffer, length, readOffset); + char * data = static_cast<char *>(buffer); + ssize_t read(0); + while (read < ssize_t(length)) { + size_t lenNow = std::min(getChunkSize(), length - read); + ssize_t readNow = File_RW_Ops::pread(fh, data + read, lenNow, readOffset + read); + if (readNow > 0) { + read += readNow; + } else { + return (read > 0) ? read : readNow; + } + } + return read; } |