non-thread safe functions are used like rand(), strerror().
this patch replace them with thread safe one.
and also this patch contains a change to fix a memory leak problem.
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D7917
This changes a lot of things all across the EFL. Previously,
methods tagged @const had both their external prototype and
internal impl generated with const on object, while property
getters only had const on the external API. This is now changed
and it all has const everywhere.
Ref T6859.
If we can parse the IP using inet_pton() and the port, there is no
reason to call getaddrinfo() in a thread.
This is required since ecore_con_suite (for ecore_con-over-efl_net) will
assume the server is running as soon as it's created.
I just realized that if a client is not referenced it would leak in
the 'ssl' server as we must del it.
However, if we del the SSL socket, we're going to close the underlying
TCP. But we're from the TCP "client,add" callback and this causes
issues since "closed" will be emitted, our close callback will
unparent the client, which lead to it being deleted.
The proper solution is to only monitor "closed" if the client is
accepted. Otherwise we just check if it was closed, if we're the
parent, etc...
Fixing this in all servers were painful, we could share since most
inherit from Efl.Net.Server.Fd. Then add the "client_announce"
protected method to do it, and document how it should work.
windows is nasty and defines the value to be set or retrieved as
'char *', which triggers a warning when we use another kind of
pointer.
Partially addresses D4357.
On Windows SOCKET is unsigned, thus will cause sign errors when
formatting with "%d" or comparing with signed values.
On UNIX it was quiet and easy to miss, thus a new #define can be used
to check for those. It will use 'unsigned long' as SOCKET, thus will
complain out loud and not even work correctly when using pointers on
64bits UNIX on mistakes -- which should improve the situation.
This helped to fix lots of missing conversions, all fixed.
This partially addresses D4357.
This was a huge work, but now UDP is usable as seen in the examples.
Instead of relying on 'connect()', just do 'sendto()' and 'recvfrom()'
as they are universal. Multicast address can only be connected in
IPv4, IPv6 wasn't working and I'm not sure the IPv4 is portable to
other platforms.
Dialer will auto-join multicast groups is the dialed address is
one. Multicast properties such as time to live (hops) and loopback can
be configured. When joining multicast groups, the local
address/interface can be configured by 'IP@IFACE' format, with
'@IFACE' being optional.
Dialers will now auto-bind, so it can receive data as dialers are
expected to be bi-directional. One can manually specify the binding
address if there is such need.
Since datagrams must be read in their full size, otherwise the
remaining bits are dropped, expose next_datagram_size_query() in both
Efl.Net.Socket.Udp and Efl.Net.Server.Udp.Client.
To finalize UDP for real we need to introduce an 'Efl_Net_Ip_Address'
structure to serve as both IPv4 and IPv6 and expose 'sendto()' and
'recvfrom()'. These will come later as this commit is already too big.
Thanks to vtorri for poiting out about close() is not the correct
socket function, we should use closesocket() instead.
Also defined SOCKET to int on Linux so we can use the same 'type' and
avoid lots of ifdef in our code. On Windows it's unsigned, thus would
cause some warnings about incorrect signed comparison.
Defined INVALID_SOCKET=-1 and SOCKET_ERROR=-1 on non-Windows platforms
so we can keep the same construct 'function() == error' and it should
work on POSIX and windows.
I cannot test these on Windows, but the situation should be improved
with this commit.
if no hints were specified, getaddrinfo() will assume ai_flags as
AI_ADDRCONFIG | AI_V4MAPPED, which only reports useful results based
on what system supports. For instance AI_ADDRCONFIG will only return
IPv4 if IPv4 address exists, likewise IPv6 will only be returned if
IPv6 address is configured, avoiding these to be tried and error for
most local networks where such address could not be used. AI_V4MAPPED
will map IPv4 address over IPv6 if no IPv4 was found.
This is the initial UDP server that works similarly to the TCP one,
however under the hood it's widely different since the socket is
reused for all "clients", thus needs a new Efl.Net.Server.Udp.Client
(Efl.Net.Socket) as Efl.Net.Socket.Udp exposes the fd and options such
as 'cork', which would interfere in other clients.
The main socket will read the packets and find an existing client to
feed it. If no client exists, then it will create one if not overr
limit. Since there is no kernel-queuing as done by listen()/accept(),
the 'no reject' case will just accept the client anyway.
Next commits will improve UDP server handling with some advanced
features:
- join multicast groups
- bind to a specific interface (SO_BINDTODEVICE)
- block packets going out of local network (SO_DONTROUTE)
- specify priorities (SO_PRIORITY)
Vincent Torri
Mike Blumenkrantz
Wonki Kim
Cedric BAIL
Daniel Kolesa
Carsten Haitzler
Gustavo Sverzut Barbieri