Top |
Functions
Properties
gpointer | async-context | Read / Write / Construct Only |
gboolean | clean-dispose | Write / Construct Only |
gboolean | is-server | Read |
SoupAddress * | local-address | Read / Write / Construct Only |
gboolean | non-blocking | Read / Write |
GProxyResolver * | proxy-resolver | Read / Write / Construct Only |
SoupAddress * | remote-address | Read / Write / Construct Only |
gpointer | ssl-creds | Read / Write |
gboolean | ssl-fallback | Read / Write / Construct Only |
gboolean | ssl-strict | Read / Write / Construct Only |
guint | timeout | Read / Write |
GTlsCertificate * | tls-certificate | Read |
GTlsCertificateFlags | tls-errors | Read |
gboolean | trusted-certificate | Read |
gboolean | use-thread-context | Read / Write / Construct Only |
Signals
void | disconnected | Run Last |
void | event | Run Last |
void | new-connection | Run First |
void | readable | Run Last |
void | writable | Run Last |
Types and Values
SoupSocket | |
enum | SoupSocketIOStatus |
#define | SOUP_SOCKET_LOCAL_ADDRESS |
#define | SOUP_SOCKET_REMOTE_ADDRESS |
#define | SOUP_SOCKET_FLAG_NONBLOCKING |
#define | SOUP_SOCKET_IS_SERVER |
#define | SOUP_SOCKET_SSL_CREDENTIALS |
#define | SOUP_SOCKET_ASYNC_CONTEXT |
#define | SOUP_SOCKET_TIMEOUT |
#define | SOUP_SOCKET_SSL_FALLBACK |
#define | SOUP_SOCKET_SSL_STRICT |
#define | SOUP_SOCKET_TLS_CERTIFICATE |
#define | SOUP_SOCKET_TLS_ERRORS |
#define | SOUP_SOCKET_TRUSTED_CERTIFICATE |
#define | SOUP_SOCKET_USE_THREAD_CONTEXT |
Description
SoupSocket is libsoup's TCP socket type. While it is primarily
intended for internal use, SoupSockets are exposed in the
API in various places, and some of their methods (eg,
soup_socket_get_remote_address()
) may be useful to applications.
Functions
soup_socket_new ()
SoupSocket * soup_socket_new (const char *optname1
,...
);
Creates a new (disconnected) socket
Parameters
optname1 |
name of first property to set (or |
|
... |
value of |
SoupSocketCallback ()
void (*SoupSocketCallback) (SoupSocket *sock
,guint status
,gpointer user_data
);
The callback function passed to soup_socket_connect_async()
.
Parameters
sock |
the SoupSocket |
|
status |
an HTTP status code indicating success or failure |
|
user_data |
the data passed to |
soup_socket_connect_async ()
void soup_socket_connect_async (SoupSocket *sock
,GCancellable *cancellable
,SoupSocketCallback callback
,gpointer user_data
);
Begins asynchronously connecting to sock
's remote address. The
socket will call callback
when it succeeds or fails (but not
before returning from this function).
If cancellable
is non-NULL
, it can be used to cancel the
connection. callback
will still be invoked in this case, with a
status of SOUP_STATUS_CANCELLED
.
Parameters
sock |
a client SoupSocket (which must not already be connected) |
|
cancellable |
a GCancellable, or |
|
callback |
callback to call after connecting. |
[scope async] |
user_data |
data to pass to |
soup_socket_connect_sync ()
guint soup_socket_connect_sync (SoupSocket *sock
,GCancellable *cancellable
);
Attempt to synchronously connect sock
to its remote address.
If cancellable
is non-NULL
, it can be used to cancel the
connection, in which case soup_socket_connect_sync()
will return
SOUP_STATUS_CANCELLED
.
Parameters
sock |
a client SoupSocket (which must not already be connected) |
|
cancellable |
a GCancellable, or |
soup_socket_listen ()
gboolean
soup_socket_listen (SoupSocket *sock
);
Makes sock
start listening on its local address. When connections
come in, sock
will emit “new_connection”.
soup_socket_start_ssl ()
gboolean soup_socket_start_ssl (SoupSocket *sock
,GCancellable *cancellable
);
Starts using SSL on socket
.
soup_socket_start_proxy_ssl ()
gboolean soup_socket_start_proxy_ssl (SoupSocket *sock
,const char *ssl_host
,GCancellable *cancellable
);
Starts using SSL on socket
, expecting to find a host named
ssl_host
.
soup_socket_is_ssl ()
gboolean
soup_socket_is_ssl (SoupSocket *sock
);
Tests if sock
is doing (or has attempted to do) SSL.
soup_socket_disconnect ()
void
soup_socket_disconnect (SoupSocket *sock
);
Disconnects sock
. Any further read or write attempts on it will
fail.
soup_socket_is_connected ()
gboolean
soup_socket_is_connected (SoupSocket *sock
);
Tests if sock
is connected to another host
soup_socket_get_local_address ()
SoupAddress *
soup_socket_get_local_address (SoupSocket *sock
);
Returns the SoupAddress corresponding to the local end of sock
.
Calling this method on an unconnected socket is considered to be an error, and produces undefined results.
soup_socket_get_remote_address ()
SoupAddress *
soup_socket_get_remote_address (SoupSocket *sock
);
Returns the SoupAddress corresponding to the remote end of sock
.
Calling this method on an unconnected socket is considered to be an error, and produces undefined results.
soup_socket_get_fd ()
int
soup_socket_get_fd (SoupSocket *sock
);
Gets sock
's underlying file descriptor.
Note that fiddling with the file descriptor may break the SoupSocket.
soup_socket_read ()
SoupSocketIOStatus soup_socket_read (SoupSocket *sock
,gpointer buffer
,gsize len
,gsize *nread
,GCancellable *cancellable
,GError **error
);
Attempts to read up to len
bytes from sock
into buffer
. If some
data is successfully read, soup_socket_read()
will return
SOUP_SOCKET_OK
, and *nread
will contain the number of bytes
actually read (which may be less than len
).
If sock
is non-blocking, and no data is available, the return
value will be SOUP_SOCKET_WOULD_BLOCK
. In this case, the caller
can connect to the “readable” signal to know when there
is more data to read. (NB: You MUST read all available data off the
socket first. “readable” is only emitted after
soup_socket_read()
returns SOUP_SOCKET_WOULD_BLOCK
, and it is only
emitted once. See the documentation for “non-blocking”.)
Parameters
sock |
the socket |
|
buffer |
buffer to read into |
|
len |
size of |
|
nread |
on return, the number of bytes read into |
[out] |
cancellable |
a GCancellable, or |
|
error |
error pointer |
Returns
a SoupSocketIOStatus, as described above (or
SOUP_SOCKET_EOF
if the socket is no longer connected, or
SOUP_SOCKET_ERROR
on any other error, in which case error
will
also be set).
soup_socket_read_until ()
SoupSocketIOStatus soup_socket_read_until (SoupSocket *sock
,gpointer buffer
,gsize len
,gconstpointer boundary
,gsize boundary_len
,gsize *nread
,gboolean *got_boundary
,GCancellable *cancellable
,GError **error
);
Like soup_socket_read()
, but reads no further than the first
occurrence of boundary
. (If the boundary is found, it will be
included in the returned data, and *got_boundary
will be set to
TRUE
.) Any data after the boundary will returned in future reads.
soup_socket_read_until() will almost always return fewer than len
bytes: if the boundary is found, then it will only return the bytes
up until the end of the boundary, and if the boundary is not found,
then it will leave the last (boundary_len - 1)
bytes in its internal buffer, in case they form the start of the
boundary string. Thus, len
normally needs to be at least 1 byte
longer than boundary_len
if you want to make any progress at all.
Parameters
sock |
the socket |
|
buffer |
buffer to read into |
|
len |
size of |
|
boundary |
boundary to read until |
|
boundary_len |
length of |
|
nread |
on return, the number of bytes read into |
[out] |
got_boundary |
on return, whether or not the data in |
|
cancellable |
a GCancellable, or |
|
error |
error pointer |
soup_socket_write ()
SoupSocketIOStatus soup_socket_write (SoupSocket *sock
,gconstpointer buffer
,gsize len
,gsize *nwrote
,GCancellable *cancellable
,GError **error
);
Attempts to write len
bytes from buffer
to sock
. If some data is
successfully written, the return status will be SOUP_SOCKET_OK
,
and *nwrote
will contain the number of bytes actually written
(which may be less than len
).
If sock
is non-blocking, and no data could be written right away,
the return value will be SOUP_SOCKET_WOULD_BLOCK
. In this case,
the caller can connect to the “writable” signal to know
when more data can be written. (NB: “writable” is only
emitted after soup_socket_write()
returns SOUP_SOCKET_WOULD_BLOCK
,
and it is only emitted once. See the documentation for
“non-blocking”.)
Parameters
sock |
the socket |
|
buffer |
data to write |
|
len |
size of |
|
nwrote |
on return, number of bytes written. |
[out] |
cancellable |
a GCancellable, or |
|
error |
error pointer |
Returns
a SoupSocketIOStatus, as described above (or
SOUP_SOCKET_EOF
or SOUP_SOCKET_ERROR
. error
will be set if the
return value is SOUP_SOCKET_ERROR
.)
Types and Values
SOUP_SOCKET_LOCAL_ADDRESS
#define SOUP_SOCKET_LOCAL_ADDRESS "local-address"
Alias for the “local-address” property. (Address of local end of socket.)
SOUP_SOCKET_REMOTE_ADDRESS
#define SOUP_SOCKET_REMOTE_ADDRESS "remote-address"
Alias for the “remote-address” property. (Address of remote end of socket.)
SOUP_SOCKET_FLAG_NONBLOCKING
#define SOUP_SOCKET_FLAG_NONBLOCKING "non-blocking"
Alias for the “non-blocking” property. (Whether or not the socket uses non-blocking I/O.)
SOUP_SOCKET_IS_SERVER
#define SOUP_SOCKET_IS_SERVER "is-server"
Alias for the “is-server” property. (Whether or not the socket is a server socket.)
SOUP_SOCKET_SSL_CREDENTIALS
#define SOUP_SOCKET_SSL_CREDENTIALS "ssl-creds"
Alias for the “ssl-creds” property. (SSL credential information.)
SOUP_SOCKET_ASYNC_CONTEXT
#define SOUP_SOCKET_ASYNC_CONTEXT "async-context"
Alias for the “async-context” property. (The socket's GMainContext.)
SOUP_SOCKET_TIMEOUT
#define SOUP_SOCKET_TIMEOUT "timeout"
Alias for the “timeout” property. (The timeout in seconds for blocking socket I/O operations.)
SOUP_SOCKET_SSL_FALLBACK
#define SOUP_SOCKET_SSL_FALLBACK "ssl-fallback"
Alias for the “ssl-fallback” property.
SOUP_SOCKET_SSL_STRICT
#define SOUP_SOCKET_SSL_STRICT "ssl-strict"
Alias for the “ssl-strict” property.
SOUP_SOCKET_TLS_CERTIFICATE
#define SOUP_SOCKET_TLS_CERTIFICATE "tls-certificate"
Alias for the “tls-certificate” property. Note that this property's value is only useful if the socket is for a TLS connection, and only reliable after some data has been transferred to or from it.
Since 2.34
SOUP_SOCKET_TLS_ERRORS
#define SOUP_SOCKET_TLS_ERRORS "tls-errors"
Alias for the “tls-errors” property. Note that this property's value is only useful if the socket is for a TLS connection, and only reliable after some data has been transferred to or from it.
Since 2.34
SOUP_SOCKET_TRUSTED_CERTIFICATE
#define SOUP_SOCKET_TRUSTED_CERTIFICATE "trusted-certificate"
Alias for the “trusted-certificate” property.
SOUP_SOCKET_USE_THREAD_CONTEXT
#define SOUP_SOCKET_USE_THREAD_CONTEXT "use-thread-context"
Alias for the “use-thread-context” property. (Use
g_main_context_get_thread_default()
)
Since 2.38
Property Details
The “async-context”
property
“async-context” gpointer
The GMainContext to dispatch this socket's async I/O in.
Flags: Read / Write / Construct Only
The “clean-dispose”
property
“clean-dispose” gboolean
Warn on unclean dispose.
Flags: Write / Construct Only
Default value: FALSE
The “is-server”
property
“is-server” gboolean
Whether or not the socket is a server socket.
Flags: Read
Default value: FALSE
The “local-address”
property
“local-address” SoupAddress *
Address of local end of socket.
Flags: Read / Write / Construct Only
The “non-blocking”
property
“non-blocking” gboolean
Whether or not the socket uses non-blocking I/O.
SoupSocket's I/O methods are designed around the idea of
using a single codepath for both synchronous and
asynchronous I/O. If you want to read off a SoupSocket,
the "correct" way to do it is to call soup_socket_read()
or
soup_socket_read_until()
repeatedly until you have read
everything you want. If it returns SOUP_SOCKET_WOULD_BLOCK
at any point, stop reading and wait for it to emit the
“readable” signal. Then go back to the
reading-as-much-as-you-can loop. Likewise, for writing to a
SoupSocket, you should call soup_socket_write()
either
until you have written everything, or it returns
SOUP_SOCKET_WOULD_BLOCK
(in which case you wait for
“writable” and then go back into the loop).
Code written this way will work correctly with both
blocking and non-blocking sockets; blocking sockets will
simply never return SOUP_SOCKET_WOULD_BLOCK
, and so the
code that handles that case just won't get used for them.
Flags: Read / Write
Default value: TRUE
The “proxy-resolver”
property
“proxy-resolver” GProxyResolver *
GProxyResolver to use.
Flags: Read / Write / Construct Only
The “remote-address”
property
“remote-address” SoupAddress *
Address of remote end of socket.
Flags: Read / Write / Construct Only
The “ssl-creds”
property
“ssl-creds” gpointer
SSL credential information, passed from the session to the SSL implementation.
Flags: Read / Write
The “ssl-fallback”
property
“ssl-fallback” gboolean
Use SSLv3 instead of TLS (client-side only).
Flags: Read / Write / Construct Only
Default value: FALSE
The “ssl-strict”
property
“ssl-strict” gboolean
Whether certificate errors should be considered a connection error.
Flags: Read / Write / Construct Only
Default value: TRUE
The “timeout”
property
“timeout” guint
Value in seconds to timeout a blocking I/O.
Flags: Read / Write
Default value: 0
The “tls-certificate”
property
“tls-certificate” GTlsCertificate *
The peer's TLS certificate.
Flags: Read
The “tls-errors”
property
“tls-errors” GTlsCertificateFlags
Errors with the peer's TLS certificate.
Flags: Read
The “trusted-certificate”
property
“trusted-certificate” gboolean
Whether the server certificate is trusted, if this is an SSL socket.
Flags: Read
Default value: FALSE
The “use-thread-context”
property
“use-thread-context” gboolean
Use g_main_context_get_thread_default()
.
Flags: Read / Write / Construct Only
Default value: FALSE
Since 2.38
Signal Details
The “disconnected”
signal
void user_function (SoupSocket *sock, gpointer user_data)
Emitted when the socket is disconnected, for whatever reason.
Flags: Run Last
The “event”
signal
void user_function (SoupSocket *sock, GSocketClientEvent event, GIOStream *connection, gpointer user_data)
Emitted when a network-related event occurs. See “event” for more details.
Parameters
sock |
the socket |
|
event |
the event that occurred |
|
connection |
the current connection state |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
Since 2.38
The “new-connection”
signal
void user_function (SoupSocket *sock, SoupSocket *new, gpointer user_data)
Emitted when a listening socket (set up with
soup_socket_listen()
) receives a new connection.
You must ref the new
if you want to keep it; otherwise it
will be destroyed after the signal is emitted.
Parameters
sock |
the socket |
|
new |
the new socket |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
The “readable”
signal
void user_function (SoupSocket *sock, gpointer user_data)
Emitted when an async socket is readable. See
soup_socket_read()
, soup_socket_read_until()
and
“non-blocking”.
Flags: Run Last
The “writable”
signal
void user_function (SoupSocket *sock, gpointer user_data)
Emitted when an async socket is writable. See
soup_socket_write()
and “non-blocking”.
Flags: Run Last