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cpp-libs
Actor Framework
Commits
abbd084f
Commit
abbd084f
authored
Oct 22, 2016
by
Joseph Noir
Browse files
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Add datagram functionality to default multiplexer
parent
48b6303a
Changes
5
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Showing
5 changed files
with
254 additions
and
39 deletions
+254
-39
libcaf_io/caf/io/abstract_broker.hpp
libcaf_io/caf/io/abstract_broker.hpp
+2
-2
libcaf_io/caf/io/datagram_source.hpp
libcaf_io/caf/io/datagram_source.hpp
+1
-3
libcaf_io/caf/io/network/default_multiplexer.hpp
libcaf_io/caf/io/network/default_multiplexer.hpp
+22
-13
libcaf_io/src/abstract_broker.cpp
libcaf_io/src/abstract_broker.cpp
+46
-0
libcaf_io/src/default_multiplexer.cpp
libcaf_io/src/default_multiplexer.cpp
+183
-21
No files found.
libcaf_io/caf/io/abstract_broker.hpp
View file @
abbd084f
...
@@ -209,7 +209,7 @@ public:
...
@@ -209,7 +209,7 @@ public:
/// Assigns a detached `datagram_sink` instance identified by `hdl`
/// Assigns a detached `datagram_sink` instance identified by `hdl`
/// from the `multiplexer` to this broker.
/// from the `multiplexer` to this broker.
expected
<
void
>
assign_datagram_sink
(
connection
_handle
hdl
);
expected
<
void
>
assign_datagram_sink
(
datagram_sink
_handle
hdl
);
/// Creates and assigns a new `datagram_sink` from given native socked `fd`.
/// Creates and assigns a new `datagram_sink` from given native socked `fd`.
expected
<
datagram_sink_handle
>
add_datagram_sink
(
network
::
native_socket
fd
);
expected
<
datagram_sink_handle
>
add_datagram_sink
(
network
::
native_socket
fd
);
...
@@ -227,7 +227,7 @@ public:
...
@@ -227,7 +227,7 @@ public:
/// Assigns a detached `datagram_source` instance identified by `hdl`
/// Assigns a detached `datagram_source` instance identified by `hdl`
/// from the `multiplexer` to this broker.
/// from the `multiplexer` to this broker.
expected
<
void
>
assign_datagram_source
(
accept
_handle
hdl
);
expected
<
void
>
assign_datagram_source
(
datagram_source
_handle
hdl
);
/// Creates and assigns a new `datagram_source` from given native socked `fd`.
/// Creates and assigns a new `datagram_source` from given native socked `fd`.
expected
<
datagram_source_handle
>
expected
<
datagram_source_handle
>
...
...
libcaf_io/caf/io/datagram_source.hpp
View file @
abbd084f
...
@@ -44,10 +44,8 @@ public:
...
@@ -44,10 +44,8 @@ public:
~
datagram_source
();
~
datagram_source
();
/*
/// Implicitly starts the read loop on first call.
/// Implicitly starts the read loop on first call.
virtual void configure_read(receive_policy::config config) = 0;
virtual
void
configure_datagram_size
(
size_t
buf_size
)
=
0
;
*/
/// Returns the current input buffer.
/// Returns the current input buffer.
virtual
std
::
vector
<
char
>&
rd_buf
()
=
0
;
virtual
std
::
vector
<
char
>&
rd_buf
()
=
0
;
...
...
libcaf_io/caf/io/network/default_multiplexer.hpp
View file @
abbd084f
...
@@ -532,13 +532,6 @@ private:
...
@@ -532,13 +532,6 @@ private:
native_socket
sock_
;
native_socket
sock_
;
};
};
expected
<
native_socket
>
new_tcp_connection
(
const
std
::
string
&
host
,
uint16_t
port
,
optional
<
protocol
>
preferred
=
none
);
expected
<
std
::
pair
<
native_socket
,
uint16_t
>>
new_tcp_acceptor_impl
(
uint16_t
port
,
const
char
*
addr
,
bool
reuse_addr
);
/// A datagram_sender is responsible for sending datagrams to an endpoint.
/// A datagram_sender is responsible for sending datagrams to an endpoint.
class
datagram_sender
:
public
event_handler
{
class
datagram_sender
:
public
event_handler
{
public:
public:
...
@@ -591,8 +584,6 @@ private:
...
@@ -591,8 +584,6 @@ private:
manager_ptr
writer_
;
manager_ptr
writer_
;
bool
ack_writes_
;
bool
ack_writes_
;
bool
writing_
;
size_t
written_
;
buffer_type
wr_buf_
;
buffer_type
wr_buf_
;
buffer_type
wr_offline_buf_
;
buffer_type
wr_offline_buf_
;
};
};
...
@@ -612,6 +603,11 @@ public:
...
@@ -612,6 +603,11 @@ public:
datagram_receiver
(
default_multiplexer
&
backend_ref
,
native_socket
sockfd
);
datagram_receiver
(
default_multiplexer
&
backend_ref
,
native_socket
sockfd
);
/// Configures how much buffer will be provided for the next datagram.
/// @warning Must not be called outside the IO multiplexers event loop
/// once the stream has been started.
void
configure_datagram_size
(
size_t
buf_size
);
/// Returns the read buffer of this datagram receiver.
/// Returns the read buffer of this datagram receiver.
/// @warning Must not be modified outside the IO multiplexers event loop
/// @warning Must not be modified outside the IO multiplexers event loop
/// once the stream has been started.
/// once the stream has been started.
...
@@ -634,14 +630,27 @@ public:
...
@@ -634,14 +630,27 @@ public:
void
handle_event
(
operation
op
)
override
;
void
handle_event
(
operation
op
)
override
;
private:
private:
void
prepare_next_read
();
manager_ptr
reader_
;
manager_ptr
reader_
;
size_t
read_threshold_
;
size_t
buf_size_
;
size_t
collected_
;
size_t
packet_size_
;
size_t
max_
;
buffer_type
rd_buf_
;
buffer_type
rd_buf_
;
struct
sockaddr_storage
last_sender
;
socklen_t
sender_len
;
};
};
expected
<
native_socket
>
new_tcp_connection
(
const
std
::
string
&
host
,
uint16_t
port
,
optional
<
protocol
>
preferred
=
none
);
expected
<
std
::
pair
<
native_socket
,
uint16_t
>>
new_tcp_acceptor_impl
(
uint16_t
port
,
const
char
*
addr
,
bool
reuse_addr
);
expected
<
native_socket
>
new_datagram_sink_impl
(
const
std
::
string
&
host
,
uint16_t
port
,
optional
<
protocol
>
preferred
=
none
);
}
// namespace network
}
// namespace network
}
// namespace io
}
// namespace io
}
// namespace caf
}
// namespace caf
...
...
libcaf_io/src/abstract_broker.cpp
View file @
abbd084f
...
@@ -164,6 +164,52 @@ abstract_broker::add_tcp_doorman(network::native_socket fd) {
...
@@ -164,6 +164,52 @@ abstract_broker::add_tcp_doorman(network::native_socket fd) {
return
backend
().
add_tcp_doorman
(
this
,
fd
);
return
backend
().
add_tcp_doorman
(
this
,
fd
);
}
}
void
abstract_broker
::
add_datagram_sink
(
const
intrusive_ptr
<
datagram_sink
>&
ptr
)
{
datagram_sinks_
.
emplace
(
ptr
->
hdl
(),
ptr
);
}
expected
<
datagram_sink_handle
>
abstract_broker
::
add_datagram_sink
(
const
std
::
string
&
hostname
,
uint16_t
port
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
hostname
)
<<
CAF_ARG
(
port
));
return
backend
().
add_datagram_sink
(
this
,
hostname
,
port
);
}
expected
<
void
>
abstract_broker
::
assign_datagram_sink
(
datagram_sink_handle
hdl
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
hdl
));
return
backend
().
assign_datagram_sink
(
this
,
hdl
);
}
expected
<
datagram_sink_handle
>
abstract_broker
::
add_datagram_sink
(
network
::
native_socket
fd
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
fd
));
return
backend
().
add_datagram_sink
(
this
,
fd
);
}
void
abstract_broker
::
add_datagram_source
(
const
intrusive_ptr
<
datagram_source
>&
ptr
)
{
datagram_sources_
.
emplace
(
ptr
->
hdl
(),
ptr
);
// TODO: some launching of things?
}
expected
<
std
::
pair
<
datagram_source_handle
,
uint16_t
>>
abstract_broker
::
add_datagram_source
(
uint16_t
port
,
const
char
*
in
,
bool
reuse_addr
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
port
)
<<
CAF_ARG
(
in
)
<<
CAF_ARG
(
reuse_addr
));
return
backend
().
add_datagram_source
(
this
,
port
,
in
,
reuse_addr
);
}
expected
<
void
>
abstract_broker
::
assign_datagram_source
(
datagram_source_handle
hdl
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
hdl
));
return
backend
().
assign_datagram_source
(
this
,
hdl
);
}
expected
<
datagram_source_handle
>
abstract_broker
::
add_datagram_source
(
network
::
native_socket
fd
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
fd
));
return
backend
().
add_datagram_source
(
this
,
fd
);
}
std
::
string
abstract_broker
::
remote_addr
(
connection_handle
hdl
)
{
std
::
string
abstract_broker
::
remote_addr
(
connection_handle
hdl
)
{
auto
i
=
scribes_
.
find
(
hdl
);
auto
i
=
scribes_
.
find
(
hdl
);
return
i
!=
scribes_
.
end
()
?
i
->
second
->
addr
()
:
std
::
string
{};
return
i
!=
scribes_
.
end
()
?
i
->
second
->
addr
()
:
std
::
string
{};
...
...
libcaf_io/src/default_multiplexer.cpp
View file @
abbd084f
...
@@ -923,6 +923,10 @@ default_multiplexer::add_datagram_source(abstract_broker* self,
...
@@ -923,6 +923,10 @@ default_multiplexer::add_datagram_source(abstract_broker* self,
receiver_
(
mx
,
sockfd
)
{
receiver_
(
mx
,
sockfd
)
{
// nop
// nop
}
}
void
configure_datagram_size
(
size_t
buf_size
)
override
{
CAF_LOG_TRACE
(
""
);
receiver_
.
configure_datagram_size
(
buf_size
);
}
void
stop_reading
()
override
{
void
stop_reading
()
override
{
CAF_LOG_TRACE
(
""
);
CAF_LOG_TRACE
(
""
);
receiver_
.
stop_reading
();
receiver_
.
stop_reading
();
...
@@ -1023,6 +1027,7 @@ default_multiplexer::new_datagram_sink(const std::string& host, uint16_t port) {
...
@@ -1023,6 +1027,7 @@ default_multiplexer::new_datagram_sink(const std::string& host, uint16_t port) {
return
datagram_sink_handle
::
from_int
(
int64_from_native_socket
(
*
fd
));
return
datagram_sink_handle
::
from_int
(
int64_from_native_socket
(
*
fd
));
}
}
expected
<
void
>
default_multiplexer
::
assign_datagram_sink
(
abstract_broker
*
self
,
expected
<
void
>
default_multiplexer
::
assign_datagram_sink
(
abstract_broker
*
self
,
datagram_sink_handle
hdl
)
{
datagram_sink_handle
hdl
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
self
->
id
())
<<
CAF_ARG
(
hdl
));
CAF_LOG_TRACE
(
CAF_ARG
(
self
->
id
())
<<
CAF_ARG
(
hdl
));
...
@@ -1030,6 +1035,34 @@ expected<void> default_multiplexer::assign_datagram_sink(abstract_broker* self,
...
@@ -1030,6 +1035,34 @@ expected<void> default_multiplexer::assign_datagram_sink(abstract_broker* self,
return
unit
;
return
unit
;
}
}
expected
<
datagram_sink_handle
>
default_multiplexer
::
add_datagram_sink
(
abstract_broker
*
self
,
const
std
::
string
&
host
,
uint16_t
port
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
self
->
id
())
<<
CAF_ARG
(
host
)
<<
CAF_ARG
(
port
));
auto
fd
=
new_datagram_sink_impl
(
host
,
port
);
if
(
!
fd
)
return
std
::
move
(
fd
.
error
());
return
add_datagram_sink
(
self
,
*
fd
);
}
expected
<
std
::
pair
<
datagram_source_handle
,
uint16_t
>>
default_multiplexer
::
new_datagram_source
(
uint16_t
port
,
const
char
*
in
,
bool
reuse_addr
)
{
return
sec
::
bad_function_call
;
}
expected
<
void
>
default_multiplexer
::
assign_datagram_source
(
abstract_broker
*
self
,
datagram_source_handle
hdl
)
{
return
sec
::
bad_function_call
;
}
expected
<
std
::
pair
<
datagram_source_handle
,
uint16_t
>>
default_multiplexer
::
add_datagram_source
(
abstract_broker
*
self
,
uint16_t
port
,
const
char
*
in
,
bool
reuse_addr
)
{
return
sec
::
bad_function_call
;
}
/******************************************************************************
/******************************************************************************
* platform-independent implementations (finally) *
* platform-independent implementations (finally) *
******************************************************************************/
******************************************************************************/
...
@@ -1095,19 +1128,34 @@ bool try_accept(native_socket& result, native_socket fd) {
...
@@ -1095,19 +1128,34 @@ bool try_accept(native_socket& result, native_socket fd) {
return
true
;
return
true
;
}
}
bool
send_datagram
(
size_t
&
result
,
native_socket
,
void
*
,
size_t
)
{
bool
send_datagram
(
size_t
&
result
,
native_socket
fd
,
void
*
buf
,
size_t
len
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
fd
)
<<
CAF_ARG
(
len
));
CAF_LOG_TRACE
(
CAF_ARG
(
fd
)
<<
CAF_ARG
(
len
));
// TODO: Send datgrams! (requires acceess to sockaddr)
// TODO: Send datgrams! (requires acceess to sockaddr)
// ssize_t sendto(int sockfd, const void *buf, size_t len, int flags,
// ssize_t sendto(int sockfd, const void *buf, size_t len, int flags,
// const struct sockaddr *dest_addr, socklen_t addrlen);
// const struct sockaddr *dest_addr, socklen_t addrlen);
auto
sres
=
0
;
//::sendto(fd, reinterpret_cast<socket_send_ptr>(buf)
,
auto
sres
=
::
send
(
fd
,
reinterpret_cast
<
socket_send_ptr
>
(
buf
),
len
,
// len,
);
no_sigpipe_flag
);
if
(
is_error
(
sres
,
true
))
if
(
is_error
(
sres
,
true
))
return
false
;
return
false
;
result
=
(
sres
>
0
)
?
static_cast
<
size_t
>
(
sres
)
:
0
;
result
=
(
sres
>
0
)
?
static_cast
<
size_t
>
(
sres
)
:
0
;
return
true
;
return
true
;
}
}
bool
receive_datagram
(
size_t
&
result
,
native_socket
fd
,
void
*
buf
,
size_t
len
,
sockaddr_storage
&
sender_addr
,
socklen_t
&
sender_len
)
{
sender_len
=
sizeof
(
sender_addr
);
CAF_LOG_TRACE
(
CAF_ARG
(
fd
));
auto
sres
=
::
recvfrom
(
fd
,
buf
,
len
,
no_sigpipe_flag
,
reinterpret_cast
<
struct
sockaddr
*>
(
&
sender_addr
),
&
sender_len
);
if
(
is_error
(
sres
,
true
)
||
sres
==
0
)
{
// Nothing to receive
return
false
;
}
result
=
(
sres
>
0
)
?
static_cast
<
size_t
>
(
sres
)
:
0
;
return
true
;
}
event_handler
::
event_handler
(
default_multiplexer
&
dm
,
native_socket
sockfd
)
event_handler
::
event_handler
(
default_multiplexer
&
dm
,
native_socket
sockfd
)
:
eventbf_
(
0
),
:
eventbf_
(
0
),
fd_
(
sockfd
),
fd_
(
sockfd
),
...
@@ -1406,9 +1454,7 @@ void acceptor::removed_from_loop(operation op) {
...
@@ -1406,9 +1454,7 @@ void acceptor::removed_from_loop(operation op) {
datagram_sender
::
datagram_sender
(
default_multiplexer
&
backend_ref
,
datagram_sender
::
datagram_sender
(
default_multiplexer
&
backend_ref
,
native_socket
sockfd
)
native_socket
sockfd
)
:
event_handler
(
backend_ref
,
sockfd
),
:
event_handler
(
backend_ref
,
sockfd
),
ack_writes_
(
false
),
ack_writes_
(
false
)
{
writing_
(
false
),
written_
(
0
)
{
// nop
// nop
}
}
...
@@ -1426,10 +1472,9 @@ void datagram_sender::write(const void* buf, size_t num_bytes) {
...
@@ -1426,10 +1472,9 @@ void datagram_sender::write(const void* buf, size_t num_bytes) {
void
datagram_sender
::
flush
(
const
manager_ptr
&
mgr
)
{
void
datagram_sender
::
flush
(
const
manager_ptr
&
mgr
)
{
CAF_ASSERT
(
mgr
!=
nullptr
);
CAF_ASSERT
(
mgr
!=
nullptr
);
CAF_LOG_TRACE
(
CAF_ARG
(
wr_offline_buf_
.
size
()));
CAF_LOG_TRACE
(
CAF_ARG
(
wr_offline_buf_
.
size
()));
if
(
!
wr_offline_buf_
.
empty
()
&&
!
writing_
)
{
if
(
wr_offline_buf_
.
empty
()
)
{
backend
().
add
(
operation
::
write
,
fd
(),
this
);
backend
().
add
(
operation
::
write
,
fd
(),
this
);
writer_
=
mgr
;
writer_
=
mgr
;
writing_
=
true
;
prepare_next_write
();
prepare_next_write
();
}
}
}
}
...
@@ -1443,7 +1488,6 @@ void datagram_sender::activate(manager_type* mgr) {
...
@@ -1443,7 +1488,6 @@ void datagram_sender::activate(manager_type* mgr) {
if
(
!
writer_
)
{
if
(
!
writer_
)
{
writer_
.
reset
(
mgr
);
writer_
.
reset
(
mgr
);
event_handler
::
activate
();
event_handler
::
activate
();
// prepare_next_read();
}
}
}
}
...
@@ -1455,7 +1499,7 @@ void datagram_sender::stop_reading() {
...
@@ -1455,7 +1499,7 @@ void datagram_sender::stop_reading() {
void
datagram_sender
::
removed_from_loop
(
operation
op
)
{
void
datagram_sender
::
removed_from_loop
(
operation
op
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
fd
())
<<
CAF_ARG
(
op
));
CAF_LOG_TRACE
(
CAF_ARG
(
fd
())
<<
CAF_ARG
(
op
));
if
(
op
==
operation
::
read
)
if
(
op
==
operation
::
write
)
writer_
.
reset
();
writer_
.
reset
();
}
}
...
@@ -1468,20 +1512,21 @@ void datagram_sender::handle_event(operation op) {
...
@@ -1468,20 +1512,21 @@ void datagram_sender::handle_event(operation op) {
}
}
case
operation
:
:
write
:
{
case
operation
:
:
write
:
{
size_t
wb
;
// written bytes
size_t
wb
;
// written bytes
if
(
!
send_datagram
(
wb
,
fd
(),
if
(
!
send_datagram
(
wb
,
fd
(),
wr_buf_
.
data
(),
wr_buf_
.
size
()))
{
wr_buf_
.
data
()
+
written_
,
wr_buf_
.
size
()
-
written_
))
{
writer_
->
io_failure
(
&
backend
(),
operation
::
write
);
writer_
->
io_failure
(
&
backend
(),
operation
::
write
);
backend
().
del
(
operation
::
write
,
fd
(),
this
);
backend
().
del
(
operation
::
write
,
fd
(),
this
);
}
else
if
(
wb
>
0
)
{
}
else
if
(
wb
>
0
)
{
written_
+=
wb
;
CAF_ASSERT
(
wb
==
wr_buf_
.
size
());
CAF_ASSERT
(
written_
<=
wr_buf_
.
size
());
auto
remaining
=
wr_buf_
.
size
()
-
written_
;
if
(
ack_writes_
)
if
(
ack_writes_
)
writer_
->
datagram_sent
(
&
backend
(),
wb
);
writer_
->
datagram_sent
(
&
backend
(),
wb
);
// prepare next send (or stop sending)
if
(
remaining
==
0
)
prepare_next_write
();
prepare_next_write
();
}
else
{
// TODO: remove this if sure that datagrams are either written
// as a whole or not at all
std
::
cerr
<<
"Partial datagram wrtten: "
<<
wb
<<
" of "
<<
wr_buf_
.
size
()
<<
std
::
endl
;
if
(
writer_
)
writer_
->
io_failure
(
&
backend
(),
operation
::
write
);
}
}
break
;
break
;
}
}
...
@@ -1495,7 +1540,89 @@ void datagram_sender::handle_event(operation op) {
...
@@ -1495,7 +1540,89 @@ void datagram_sender::handle_event(operation op) {
}
}
void
datagram_sender
::
prepare_next_write
()
{
void
datagram_sender
::
prepare_next_write
()
{
CAF_LOG_TRACE
(
CAF_ARG
(
wr_buf_
.
size
())
<<
CAF_ARG
(
wr_offline_buf_
.
size
()));
wr_buf_
.
clear
();
if
(
wr_offline_buf_
.
empty
())
{
backend
().
del
(
operation
::
write
,
fd
(),
this
);
}
else
{
wr_buf_
.
swap
(
wr_offline_buf_
);
}
}
datagram_receiver
::
datagram_receiver
(
default_multiplexer
&
backend_ref
,
native_socket
sockfd
)
:
event_handler
(
backend_ref
,
sockfd
),
buf_size_
(
1500
)
{
// TODO: Set reasonable default for buffer size
// nop
}
void
datagram_receiver
::
configure_datagram_size
(
size_t
buf_size
)
{
buf_size_
=
buf_size
;
}
void
datagram_receiver
::
start
(
manager_type
*
mgr
)
{
CAF_ASSERT
(
mgr
!=
nullptr
);
activate
(
mgr
);
}
void
datagram_receiver
::
activate
(
manager_type
*
mgr
)
{
if
(
!
reader_
)
{
reader_
.
reset
(
mgr
);
event_handler
::
activate
();
}
}
void
datagram_receiver
::
stop_reading
()
{
CAF_LOG_TRACE
(
""
);
close_read_channel
();
passivate
();
}
void
datagram_receiver
::
removed_from_loop
(
operation
op
)
{
if
(
op
==
operation
::
read
)
reader_
.
reset
();
}
void
datagram_receiver
::
handle_event
(
operation
op
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
op
));
switch
(
op
)
{
case
operation
:
:
read
:
{
// loop until an error occurs or we have nothing more to read
// or until we have handled 50 reads
size_t
rb
;
if
(
!
receive_datagram
(
rb
,
fd
(),
rd_buf_
.
data
(),
rd_buf_
.
size
(),
last_sender
,
sender_len
))
{
reader_
->
io_failure
(
&
backend
(),
operation
::
read
);
passivate
();
return
;
}
if
(
rb
==
0
)
return
;
auto
res
=
reader_
->
consume
(
&
backend
(),
rd_buf_
.
data
(),
rb
);
packet_size_
=
rb
;
prepare_next_read
();
if
(
!
res
)
{
passivate
();
return
;
}
break
;
}
case
operation
:
:
write
:
{
// This should not happen ...
break
;
}
case
operation
:
:
propagate_error
:
if
(
reader_
)
reader_
->
io_failure
(
&
backend
(),
operation
::
read
);
// backend will delete this handler anyway,
// no need to call backend().del() here
break
;
}
}
void
datagram_receiver
::
prepare_next_read
()
{
rd_buf_
.
resize
(
buf_size_
);
}
}
class
socket_guard
{
class
socket_guard
{
...
@@ -1697,6 +1824,41 @@ new_tcp_acceptor_impl(uint16_t port, const char* addr, bool reuse_addr) {
...
@@ -1697,6 +1824,41 @@ new_tcp_acceptor_impl(uint16_t port, const char* addr, bool reuse_addr) {
return
std
::
make_pair
(
sguard
.
release
(),
*
p
);
return
std
::
make_pair
(
sguard
.
release
(),
*
p
);
}
}
expected
<
native_socket
>
new_datagram_sink_impl
(
const
std
::
string
&
host
,
uint16_t
port
,
optional
<
protocol
>
preferred
)
{
CAF_LOG_TRACE
(
CAF_ARG
(
host
)
<<
CAF_ARG
(
port
)
<<
CAF_ARG
(
preferred
));
CAF_LOG_INFO
(
"try to establish datagram sink to:"
<<
CAF_ARG
(
host
)
<<
CAF_ARG
(
port
));
auto
res
=
interfaces
::
native_address
(
host
,
preferred
);
if
(
!
res
)
{
CAF_LOG_INFO
(
"no such host"
);
return
make_error
(
sec
::
cannot_connect_to_node
,
"no such host"
,
host
,
port
);
}
auto
proto
=
res
->
second
;
CAF_ASSERT
(
proto
==
ipv4
||
proto
==
ipv6
);
CALL_CFUN
(
fd
,
cc_valid_socket
,
"socket"
,
socket
(
proto
==
ipv4
?
AF_INET
:
AF_INET6
,
SOCK_DGRAM
,
0
));
socket_guard
sguard
(
fd
);
if
(
proto
==
ipv6
)
{
if
(
ip_connect
<
AF_INET6
>
(
fd
,
res
->
first
,
port
))
{
CAF_LOG_INFO
(
"successfully connected to host via IPv6"
);
return
sguard
.
release
();
}
sguard
.
close
();
// IPv4 fallback
return
new_tcp_connection
(
host
,
port
,
ipv4
);
}
if
(
!
ip_connect
<
AF_INET
>
(
fd
,
res
->
first
,
port
))
{
CAF_LOG_INFO
(
"could not connect to:"
<<
CAF_ARG
(
host
)
<<
CAF_ARG
(
port
));
return
make_error
(
sec
::
cannot_connect_to_node
,
"ip_connect failed"
,
host
,
port
);
}
CAF_LOG_INFO
(
"successfully connected to host via IPv4"
);
return
sguard
.
release
();
}
expected
<
std
::
string
>
local_addr_of_fd
(
native_socket
fd
)
{
expected
<
std
::
string
>
local_addr_of_fd
(
native_socket
fd
)
{
sockaddr_storage
st
;
sockaddr_storage
st
;
socklen_t
st_len
=
sizeof
(
st
);
socklen_t
st_len
=
sizeof
(
st
);
...
...
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