From 5e8581f15bc308454846cb79c772083dab66b04f Mon Sep 17 00:00:00 2001
From: root <root>
Date: Fri, 10 Jun 2011 06:50:42 +0000
Subject: *** empty log message ***
---
Changes | 3 +++
eio.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/Changes b/Changes
index 7449b04..4e0f88a 100644
--- a/Changes
+++ b/Changes
@@ -42,3 +42,6 @@ TODO: fadvise request
combination EIO_READDIR_STAT_ORDER | EIO_READDIR_DIRS_FIRST.
- port to openbsd (another blatantly broken non-UNIX/POSIX platform).
- fix eio_custom prototype.
+ - work around a Linux (and likely FreeBSD and other kernels) bug
+ where sendfile would not transfer all the requested bytes on
+ large transfers, using a heuristic.
diff --git a/eio.c b/eio.c
index a2bf4ec..f7a9666 100644
--- a/eio.c
+++ b/eio.c
@@ -1006,6 +1006,9 @@ eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self)
#elif defined (_WIN32)
/* does not work, just for documentation of what would need to be done */
+ /* actually, cannot be done like this, as TransmitFile changes the file offset, */
+ /* libeio guarantees that the file offset does not change, and windows */
+ /* has no way to get an independent handle to the same file description */
HANDLE h = TO_SOCKET (ifd);
SetFilePointer (h, offset, 0, FILE_BEGIN);
res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0);
--
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