efl.net: socket, server and dialer for TCP.
Efl.Net.Server defines how to accept new connections, doing the
bind(), listen() and accept() for protocols such as TCP.
Efl.Net.Dialer defines to to reach a server.
Both are based on Efl.Net.Socket as communication interface that is
based on Efl.Io.Reader, Efl.Io.Writer and Efl.Io.Closer, thus being
usable with code such as Efl.Io.Copier.
The Server will emit an event "client,add" with the established
Socket, which is a child and can be closed by both the server or the
user.
The Dialer extends the Socket and allows for creating one given an
address, that will be resolved and connected.
TCP is the initial implementation so we an validate the
interfaces. UDP, Unix-Local and SSL will come later as derivate
classes.
The examples are documented and should cover the basic principles:
- efl_io_copier_example can accept "tcp://IP:PORT" and will work as a
"netcat", can send data from socket, file or stdin to a socket,
file, stdout or stderr.
- efl_net_server_example listens for connections and can either reply
"Hello World!" and take some data or work as an echo-server,
looping back all received data to the user.
More complex interactions that require a "chat" between client and
server will be covered with new classes later, such as a queue that
empties itself once data is read.
2016-08-17 21:53:16 -07:00
|
|
|
#define EFL_NET_SOCKET_FD_PROTECTED 1
|
|
|
|
#define EFL_LOOP_FD_PROTECTED 1
|
|
|
|
#define EFL_IO_READER_FD_PROTECTED 1
|
|
|
|
#define EFL_IO_WRITER_FD_PROTECTED 1
|
|
|
|
#define EFL_IO_CLOSER_FD_PROTECTED 1
|
|
|
|
#define EFL_IO_READER_PROTECTED 1
|
|
|
|
#define EFL_IO_WRITER_PROTECTED 1
|
|
|
|
#define EFL_IO_CLOSER_PROTECTED 1
|
|
|
|
#define EFL_NET_SOCKET_PROTECTED 1
|
|
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
# include <config.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include "Ecore.h"
|
|
|
|
#include "Ecore_Con.h"
|
|
|
|
#include "ecore_con_private.h"
|
|
|
|
|
|
|
|
#include <fcntl.h>
|
|
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
|
|
# include <sys/socket.h>
|
|
|
|
#endif
|
|
|
|
#ifdef HAVE_EVIL
|
|
|
|
# include <Evil.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define MY_CLASS EFL_NET_SOCKET_FD_CLASS
|
|
|
|
|
|
|
|
typedef struct _Efl_Net_Socket_Fd_Data
|
|
|
|
{
|
|
|
|
Eina_Stringshare *address_local;
|
|
|
|
Eina_Stringshare *address_remote;
|
|
|
|
int family;
|
|
|
|
Eina_Bool close_on_exec;
|
|
|
|
} Efl_Net_Socket_Fd_Data;
|
|
|
|
|
|
|
|
static void
|
2016-08-30 05:34:10 -07:00
|
|
|
_efl_net_socket_fd_event_read(void *data EINA_UNUSED, const Efl_Event *event)
|
efl.net: socket, server and dialer for TCP.
Efl.Net.Server defines how to accept new connections, doing the
bind(), listen() and accept() for protocols such as TCP.
Efl.Net.Dialer defines to to reach a server.
Both are based on Efl.Net.Socket as communication interface that is
based on Efl.Io.Reader, Efl.Io.Writer and Efl.Io.Closer, thus being
usable with code such as Efl.Io.Copier.
The Server will emit an event "client,add" with the established
Socket, which is a child and can be closed by both the server or the
user.
The Dialer extends the Socket and allows for creating one given an
address, that will be resolved and connected.
TCP is the initial implementation so we an validate the
interfaces. UDP, Unix-Local and SSL will come later as derivate
classes.
The examples are documented and should cover the basic principles:
- efl_io_copier_example can accept "tcp://IP:PORT" and will work as a
"netcat", can send data from socket, file or stdin to a socket,
file, stdout or stderr.
- efl_net_server_example listens for connections and can either reply
"Hello World!" and take some data or work as an echo-server,
looping back all received data to the user.
More complex interactions that require a "chat" between client and
server will be covered with new classes later, such as a queue that
empties itself once data is read.
2016-08-17 21:53:16 -07:00
|
|
|
{
|
|
|
|
efl_io_reader_can_read_set(event->object, EINA_TRUE);
|
|
|
|
efl_io_reader_eos_set(event->object, EINA_FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2016-08-30 05:34:10 -07:00
|
|
|
_efl_net_socket_fd_event_write(void *data EINA_UNUSED, const Efl_Event *event)
|
efl.net: socket, server and dialer for TCP.
Efl.Net.Server defines how to accept new connections, doing the
bind(), listen() and accept() for protocols such as TCP.
Efl.Net.Dialer defines to to reach a server.
Both are based on Efl.Net.Socket as communication interface that is
based on Efl.Io.Reader, Efl.Io.Writer and Efl.Io.Closer, thus being
usable with code such as Efl.Io.Copier.
The Server will emit an event "client,add" with the established
Socket, which is a child and can be closed by both the server or the
user.
The Dialer extends the Socket and allows for creating one given an
address, that will be resolved and connected.
TCP is the initial implementation so we an validate the
interfaces. UDP, Unix-Local and SSL will come later as derivate
classes.
The examples are documented and should cover the basic principles:
- efl_io_copier_example can accept "tcp://IP:PORT" and will work as a
"netcat", can send data from socket, file or stdin to a socket,
file, stdout or stderr.
- efl_net_server_example listens for connections and can either reply
"Hello World!" and take some data or work as an echo-server,
looping back all received data to the user.
More complex interactions that require a "chat" between client and
server will be covered with new classes later, such as a queue that
empties itself once data is read.
2016-08-17 21:53:16 -07:00
|
|
|
{
|
|
|
|
efl_io_writer_can_write_set(event->object, EINA_TRUE);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2016-08-30 05:34:10 -07:00
|
|
|
_efl_net_socket_fd_event_error(void *data EINA_UNUSED, const Efl_Event *event)
|
efl.net: socket, server and dialer for TCP.
Efl.Net.Server defines how to accept new connections, doing the
bind(), listen() and accept() for protocols such as TCP.
Efl.Net.Dialer defines to to reach a server.
Both are based on Efl.Net.Socket as communication interface that is
based on Efl.Io.Reader, Efl.Io.Writer and Efl.Io.Closer, thus being
usable with code such as Efl.Io.Copier.
The Server will emit an event "client,add" with the established
Socket, which is a child and can be closed by both the server or the
user.
The Dialer extends the Socket and allows for creating one given an
address, that will be resolved and connected.
TCP is the initial implementation so we an validate the
interfaces. UDP, Unix-Local and SSL will come later as derivate
classes.
The examples are documented and should cover the basic principles:
- efl_io_copier_example can accept "tcp://IP:PORT" and will work as a
"netcat", can send data from socket, file or stdin to a socket,
file, stdout or stderr.
- efl_net_server_example listens for connections and can either reply
"Hello World!" and take some data or work as an echo-server,
looping back all received data to the user.
More complex interactions that require a "chat" between client and
server will be covered with new classes later, such as a queue that
empties itself once data is read.
2016-08-17 21:53:16 -07:00
|
|
|
{
|
|
|
|
efl_io_writer_can_write_set(event->object, EINA_FALSE);
|
|
|
|
efl_io_reader_can_read_set(event->object, EINA_FALSE);
|
|
|
|
efl_io_reader_eos_set(event->object, EINA_TRUE);
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Efl_Object *
|
|
|
|
_efl_net_socket_fd_efl_object_finalize(Eo *o, Efl_Net_Socket_Fd_Data *pd EINA_UNUSED)
|
|
|
|
{
|
|
|
|
o = efl_finalize(efl_super(o, MY_CLASS));
|
|
|
|
if (!o) return NULL;
|
|
|
|
|
|
|
|
// TODO: only register "read" if "can_read" is being monitored?
|
|
|
|
// TODO: only register "write" if "can_write" is being monitored?
|
|
|
|
efl_event_callback_add(o, EFL_LOOP_FD_EVENT_WRITE, _efl_net_socket_fd_event_write, NULL);
|
|
|
|
efl_event_callback_add(o, EFL_LOOP_FD_EVENT_READ, _efl_net_socket_fd_event_read, NULL);
|
|
|
|
efl_event_callback_add(o, EFL_LOOP_FD_EVENT_ERROR, _efl_net_socket_fd_event_error, NULL);
|
|
|
|
return o;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Efl_Object *
|
|
|
|
_efl_net_socket_fd_efl_object_constructor(Eo *o, Efl_Net_Socket_Fd_Data *pd EINA_UNUSED)
|
|
|
|
{
|
|
|
|
pd->family = AF_UNSPEC;
|
|
|
|
return efl_constructor(efl_super(o, MY_CLASS));
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static void
|
|
|
|
_efl_net_socket_fd_efl_object_destructor(Eo *o, Efl_Net_Socket_Fd_Data *pd)
|
|
|
|
{
|
|
|
|
efl_destructor(efl_super(o, MY_CLASS));
|
|
|
|
|
|
|
|
eina_stringshare_replace(&pd->address_local, NULL);
|
|
|
|
eina_stringshare_replace(&pd->address_remote, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
_efl_net_socket_fd_set(Eo *o, Efl_Net_Socket_Fd_Data *pd, int fd)
|
|
|
|
{
|
|
|
|
efl_io_reader_fd_reader_fd_set(o, fd);
|
|
|
|
efl_io_writer_fd_writer_fd_set(o, fd);
|
|
|
|
efl_io_closer_fd_closer_fd_set(o, fd);
|
|
|
|
|
|
|
|
/* apply postponed values */
|
|
|
|
efl_net_socket_fd_close_on_exec_set(o, pd->close_on_exec);
|
|
|
|
if (pd->family == AF_UNSPEC)
|
|
|
|
{
|
|
|
|
ERR("efl_loop_fd_set() must be called after efl_net_server_fd_family_set()");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
_efl_net_socket_fd_unset(Eo *o)
|
|
|
|
{
|
|
|
|
efl_io_reader_fd_reader_fd_set(o, -1);
|
|
|
|
efl_io_writer_fd_writer_fd_set(o, -1);
|
|
|
|
efl_io_closer_fd_closer_fd_set(o, -1);
|
|
|
|
|
|
|
|
efl_net_socket_address_local_set(o, NULL);
|
|
|
|
efl_net_socket_address_remote_set(o, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static void
|
|
|
|
_efl_net_socket_fd_efl_loop_fd_fd_set(Eo *o, Efl_Net_Socket_Fd_Data *pd, int fd)
|
|
|
|
{
|
|
|
|
if ((pd->family == AF_UNSPEC) && (fd >= 0))
|
|
|
|
{
|
|
|
|
struct sockaddr_storage addr;
|
|
|
|
socklen_t addrlen = sizeof(addr);
|
|
|
|
if (getsockname(fd, (struct sockaddr *)&addr, &addrlen) < 0)
|
|
|
|
ERR("getsockname(%d): %s", fd, strerror(errno));
|
|
|
|
else
|
|
|
|
efl_net_socket_fd_family_set(o, addr.ss_family);
|
|
|
|
}
|
|
|
|
|
|
|
|
efl_loop_fd_set(efl_super(o, MY_CLASS), fd);
|
|
|
|
|
|
|
|
if (fd >= 0) _efl_net_socket_fd_set(o, pd, fd);
|
|
|
|
else _efl_net_socket_fd_unset(o);
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Eina_Error
|
|
|
|
_efl_net_socket_fd_efl_io_closer_close(Eo *o, Efl_Net_Socket_Fd_Data *pd EINA_UNUSED)
|
|
|
|
{
|
|
|
|
Eina_Error ret;
|
|
|
|
|
|
|
|
efl_io_writer_can_write_set(o, EINA_FALSE);
|
|
|
|
efl_io_reader_can_read_set(o, EINA_FALSE);
|
|
|
|
efl_io_reader_eos_set(o, EINA_TRUE);
|
|
|
|
|
|
|
|
/* skip _efl_net_socket_fd_efl_loop_fd_fd_set() since we want to
|
|
|
|
* retain efl_io_closer_fd_closer_fd_get() so close(super()) works
|
|
|
|
* and we emit the events with proper addresses.
|
|
|
|
*/
|
|
|
|
efl_loop_fd_set(efl_super(o, MY_CLASS), -1);
|
|
|
|
|
|
|
|
ret = efl_io_closer_close(efl_super(o, MY_CLASS));
|
|
|
|
|
|
|
|
/* do the cleanup our _efl_net_socket_fd_efl_loop_fd_fd_set() would do */
|
|
|
|
_efl_net_socket_fd_unset(o);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Eina_Error
|
|
|
|
_efl_net_socket_fd_efl_io_reader_read(Eo *o, Efl_Net_Socket_Fd_Data *pd EINA_UNUSED, Eina_Rw_Slice *rw_slice)
|
|
|
|
{
|
|
|
|
Eina_Error ret;
|
|
|
|
|
|
|
|
ret = efl_io_reader_read(efl_super(o, MY_CLASS), rw_slice);
|
|
|
|
if (rw_slice && rw_slice->len > 0)
|
|
|
|
efl_io_reader_can_read_set(o, EINA_FALSE); /* wait Efl.Loop.Fd "read" */
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Eina_Error
|
|
|
|
_efl_net_socket_fd_efl_io_writer_write(Eo *o, Efl_Net_Socket_Fd_Data *pd EINA_UNUSED, Eina_Slice *ro_slice, Eina_Slice *remaining)
|
|
|
|
{
|
|
|
|
Eina_Error ret;
|
|
|
|
|
|
|
|
ret = efl_io_writer_write(efl_super(o, MY_CLASS), ro_slice, remaining);
|
|
|
|
if (ro_slice && ro_slice->len > 0)
|
|
|
|
efl_io_writer_can_write_set(o, EINA_FALSE); /* wait Efl.Loop.Fd "write" */
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static void
|
|
|
|
_efl_net_socket_fd_efl_net_socket_address_local_set(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd, const char *address)
|
|
|
|
{
|
|
|
|
eina_stringshare_replace(&pd->address_local, address);
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static const char *
|
|
|
|
_efl_net_socket_fd_efl_net_socket_address_local_get(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd)
|
|
|
|
{
|
|
|
|
return pd->address_local;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static void
|
|
|
|
_efl_net_socket_fd_efl_net_socket_address_remote_set(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd, const char *address)
|
|
|
|
{
|
|
|
|
eina_stringshare_replace(&pd->address_remote, address);
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static const char *
|
|
|
|
_efl_net_socket_fd_efl_net_socket_address_remote_get(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd)
|
|
|
|
{
|
|
|
|
return pd->address_remote;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Eina_Bool
|
|
|
|
_efl_net_socket_fd_close_on_exec_set(Eo *o, Efl_Net_Socket_Fd_Data *pd, Eina_Bool close_on_exec)
|
|
|
|
{
|
|
|
|
int flags, fd;
|
|
|
|
|
|
|
|
pd->close_on_exec = close_on_exec;
|
|
|
|
|
|
|
|
fd = efl_loop_fd_get(o);
|
|
|
|
if (fd < 0) return EINA_TRUE; /* postpone until fd_set() */
|
|
|
|
|
|
|
|
flags = fcntl(fd, F_GETFD);
|
|
|
|
if (flags < 0)
|
|
|
|
{
|
|
|
|
ERR("fcntl(%d, F_GETFD): %s", fd, strerror(errno));
|
|
|
|
return EINA_FALSE;
|
|
|
|
}
|
|
|
|
if (close_on_exec)
|
|
|
|
flags |= FD_CLOEXEC;
|
|
|
|
else
|
|
|
|
flags &= (~FD_CLOEXEC);
|
|
|
|
if (fcntl(fd, F_SETFD, flags) < 0)
|
|
|
|
{
|
|
|
|
ERR("fcntl(%d, F_SETFD, %#x): %s", fd, flags, strerror(errno));
|
|
|
|
return EINA_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return EINA_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static Eina_Bool
|
|
|
|
_efl_net_socket_fd_close_on_exec_get(Eo *o, Efl_Net_Socket_Fd_Data *pd)
|
|
|
|
{
|
|
|
|
int flags, fd;
|
|
|
|
|
|
|
|
fd = efl_loop_fd_get(o);
|
|
|
|
if (fd < 0) return pd->close_on_exec;
|
|
|
|
|
|
|
|
/* if there is a fd, always query it directly as it may be modified
|
|
|
|
* elsewhere by nasty users.
|
|
|
|
*/
|
|
|
|
flags = fcntl(fd, F_GETFD);
|
|
|
|
if (flags < 0)
|
|
|
|
{
|
|
|
|
ERR("fcntl(%d, F_GETFD): %s", fd, strerror(errno));
|
|
|
|
return EINA_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
pd->close_on_exec = !!(flags & FD_CLOEXEC); /* sync */
|
|
|
|
return pd->close_on_exec;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static void
|
|
|
|
_efl_net_socket_fd_family_set(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd, int family)
|
|
|
|
{
|
|
|
|
pd->family = family;
|
|
|
|
}
|
|
|
|
|
|
|
|
EOLIAN static int
|
|
|
|
_efl_net_socket_fd_family_get(Eo *o EINA_UNUSED, Efl_Net_Socket_Fd_Data *pd)
|
|
|
|
{
|
|
|
|
return pd->family;
|
|
|
|
}
|
|
|
|
|
|
|
|
#include "efl_net_socket_fd.eo.c"
|