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authorLukas Larsson <[email protected]>2011-11-29 11:05:37 +0100
committerLukas Larsson <[email protected]>2011-12-02 10:39:38 +0100
commit1bbf8cee44b8836d66d289cc0b5b314ed83de821 (patch)
tree6d7ab44fd0d11c33f885816ddb12dfbc785f4540 /lib/kernel/doc/src/file.xml
parent27faa34693f35b6aa41fa67cbfe365bd082a5757 (diff)
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Remove header/trailer support
Since the API for headers/trailers seem to be very awkward to work with when using non-blocking io the feature is dropped for now. See unix_efile.c for more details.
Diffstat (limited to 'lib/kernel/doc/src/file.xml')
-rw-r--r--lib/kernel/doc/src/file.xml25
1 files changed, 0 insertions, 25 deletions
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index 7fcc354176..c6a1f25dd9 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -1602,35 +1602,10 @@
using file:read and gen_tcp:send is used.</p>
<p>The option list can contain the following options:
<taglist>
- <tag><c>headers</c></tag>
- <item>A list containing data which is to be sent before
- the file is sent. If <c>headers</c> is used, <c>Bytes</c> specifies
- the total bytes in the header and/or file to be sent. If
- <c>Bytes</c> is set to 0, the all headers, the file and
- possible trailers will be sent. </item>
- <tag><c>trailers</c></tag>
- <item>A list containing data which is to be after before
- the file is sent. All the <c>trailers</c> will be sent after the
- file is sent, no matter what <c>Bytes</c> is set to. </item>
<tag><c>chunk_size</c></tag>
<item>The chunk size used by the erlang fallback to send
data. If using the fallback, this should be set to a value
which comfortably fits in the systems memory. Default is 20 MB.</item>
- <tag><c>sf_nodiskio</c></tag>
- <item>This flag causes any sendfile() call which would
- block on disk I/O to instead return EBUSY. Busy servers may bene-
- fit by transferring requests that would block to a separate I/O
- worker thread.</item>
- <tag><c>sf_mnowait</c></tag>
- <item>Do not wait for some kernel resource to become avail-
- able, in particular, mbuf and sf_buf. The flag does not make the
- sendfile() syscall truly non-blocking, since other resources are
- still allocated in a blocking fashion.</item>
- <tag><c>sf_sync</c></tag>
- <item>sendfile sleeps until the network stack no longer refer-
- ences the VM pages of the file, making subsequent modifications to
- it safe. Please note that this is not a guarantee that the data
- has actually been sent.</item>
</taglist>
</p>
<p>On operating systems with thread support, it is recommended to use