diff options
Diffstat (limited to 'lib/pure/asyncfile.nim')
| -rw-r--r-- | lib/pure/asyncfile.nim | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/pure/asyncfile.nim b/lib/pure/asyncfile.nim index 97bec2815..37339d3d1 100644 --- a/lib/pure/asyncfile.nim +++ b/lib/pure/asyncfile.nim @@ -78,7 +78,10 @@ proc getFileSize*(f: AsyncFile): int64 = raiseOSError(osLastError()) result = (high shl 32) or low else: + let curPos = lseek(f.fd.cint, 0, SEEK_CUR) result = lseek(f.fd.cint, 0, SEEK_END) + f.offset = lseek(f.fd.cint, curPos, SEEK_SET) + assert(f.offset == curPos) proc newAsyncFile*(fd: AsyncFd): AsyncFile = ## Creates `AsyncFile` with a previously opened file descriptor `fd`. @@ -88,7 +91,7 @@ proc newAsyncFile*(fd: AsyncFd): AsyncFile = proc openAsync*(filename: string, mode = fmRead): AsyncFile = ## Opens a file specified by the path in ``filename`` using - ## the specified ``mode`` asynchronously. + ## the specified FileMode ``mode`` asynchronously. when defined(windows) or defined(nimdoc): let flags = FILE_FLAG_OVERLAPPED or FILE_ATTRIBUTE_NORMAL let desiredAccess = getDesiredAccess(mode) @@ -281,6 +284,7 @@ proc read*(f: AsyncFile, size: int): Future[string] = result = false # We still want this callback to be called. elif res == 0: # EOF + f.offset = lseek(fd.cint, 0, SEEK_CUR) retFuture.complete("") else: readBuffer.setLen(res) |