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e9dfa79a75
Polling flags were set for data and sock layer, but while this does make
sense for the ENA flag, it does not for the POL flag which translates the
detection of an EAGAIN condition. So now we remove the {DATA,SOCK}_POL*
flags and instead introduce two new layer-independant flags (WANT_RD and
WANT_WR). These flags are only set when an EAGAIN is encountered so that
polling can be enabled.
In order for these flags to have any meaning they are not persistent and
have to be cleared by the connection handler before calling the I/O and
data callbacks. For this reason, changes detection has been slightly
improved. Instead of comparing the WANT_* flags with CURR_*_POL, we only
check if the ENA status changes, or if the polling appears, since we don't
want to detect the useless poll to ena transition. Tests show that this
has eliminated one useless call to __fd_clr().
Finally the conn_set_polling() function which was becoming complex and
required complex operations from the caller was split in two and replaced
its two only callers (conn_update_data_polling and conn_update_sock_polling).
The two functions are now much smaller due to the less complex conditions.
Note that it would be possible to re-merge them and only pass a mask but
this does not appear much interesting.
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| .. | ||
| acl.h | ||
| arg.h | ||
| auth.h | ||
| backend.h | ||
| channel.h | ||
| checks.h | ||
| connection.h | ||
| cttproxy.h | ||
| dumpstats.h | ||
| fd.h | ||
| freq_ctr.h | ||
| frontend.h | ||
| hdr_idx.h | ||
| lb_chash.h | ||
| lb_fas.h | ||
| lb_fwlc.h | ||
| lb_fwrr.h | ||
| lb_map.h | ||
| log.h | ||
| peers.h | ||
| pipe.h | ||
| port_range.h | ||
| proto_http.h | ||
| proto_tcp.h | ||
| proto_uxst.h | ||
| protocols.h | ||
| proxy.h | ||
| queue.h | ||
| raw_sock.h | ||
| sample.h | ||
| server.h | ||
| session.h | ||
| signal.h | ||
| stick_table.h | ||
| stream_interface.h | ||
| task.h | ||
| template.h | ||