![]() | ![]() | ![]() | GnomeVFS - Filesystem Abstraction library | ![]() |
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Unified network I/OUnified network I/O — Posix style network input/output functions. |
GnomeVFSResult (*GnomeVFSSocketReadFunc) (gpointer connection, gpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_read, GnomeVFSCancellation *cancellation); GnomeVFSResult (*GnomeVFSSocketWriteFunc) (gpointer connection, gconstpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_written, GnomeVFSCancellation *cancellation); void (*GnomeVFSSocketCloseFunc) (gpointer connection, GnomeVFSCancellation *cancellation); GnomeVFSSocketImpl; GnomeVFSSocket* gnome_vfs_socket_new (GnomeVFSSocketImpl *impl, void *connection); GnomeVFSResult gnome_vfs_socket_write (GnomeVFSSocket *socket, gconstpointer buffer, int bytes, GnomeVFSFileSize *bytes_written, GnomeVFSCancellation *cancellation); GnomeVFSResult gnome_vfs_socket_close (GnomeVFSSocket *socket, GnomeVFSCancellation *cancellation); GnomeVFSResult gnome_vfs_socket_read (GnomeVFSSocket *socket, gpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_read, GnomeVFSCancellation *cancellation); void gnome_vfs_socket_free (GnomeVFSSocket *socket); GnomeVFSResult gnome_vfs_socket_set_timeout (GnomeVFSSocket *socket, GTimeVal *timeout, GnomeVFSCancellation *cancellation);
The GnomeVFSSocket function family unifies network I/O through functions similar to the standard POSIX read/write functions. The main difference is that all operations are cancellable through the standard GnomeVFS cancellation mechanism and you can specify a maximum amount of time an operation may take through gnome_vfs_socket_set_timeout.
GnomeVFSResult (*GnomeVFSSocketReadFunc) (gpointer connection, gpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_read, GnomeVFSCancellation *cancellation);
connection : | |
buffer : | |
bytes : | |
bytes_read : | |
cancellation : | |
Returns : |
GnomeVFSResult (*GnomeVFSSocketWriteFunc) (gpointer connection, gconstpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_written, GnomeVFSCancellation *cancellation);
connection : | |
buffer : | |
bytes : | |
bytes_written : | |
cancellation : | |
Returns : |
void (*GnomeVFSSocketCloseFunc) (gpointer connection, GnomeVFSCancellation *cancellation);
connection : | |
cancellation : |
typedef struct { GnomeVFSSocketReadFunc read; GnomeVFSSocketWriteFunc write; GnomeVFSSocketCloseFunc close; GnomeVFSSocketSetTimeoutFunc set_timeout; } GnomeVFSSocketImpl;
GnomeVFSSocket* gnome_vfs_socket_new (GnomeVFSSocketImpl *impl, void *connection);
Creates a new GnomeVFS Socket using the specific implementation impl.
impl : | an implementation of a socket, e.g. GnomeVFSSSL |
connection : | pointer to a connection object used by impl to track state (the exact nature of connection varies from implementation to implementation) |
Returns : | a newly created socket |
GnomeVFSResult gnome_vfs_socket_write (GnomeVFSSocket *socket, gconstpointer buffer, int bytes, GnomeVFSFileSize *bytes_written, GnomeVFSCancellation *cancellation);
Write bytes bytes of data from buffer to socket.
socket : | socket to write data to |
buffer : | data to write to the socket |
bytes : | number of bytes from buffer to write to socket |
bytes_written : | pointer to a GnomeVFSFileSize, will contain the number of bytes actually written to the socket on return. |
cancellation : | optional cancellation object |
Returns : | GnomeVFSResult indicating the success of the operation |
GnomeVFSResult gnome_vfs_socket_close (GnomeVFSSocket *socket, GnomeVFSCancellation *cancellation);
Close socket, freeing any resources it may be using.
socket : | the socket to be closed |
cancellation : | optional cancellation object |
Returns : | GnomeVFSResult indicating the success of the operation |
GnomeVFSResult gnome_vfs_socket_read (GnomeVFSSocket *socket, gpointer buffer, GnomeVFSFileSize bytes, GnomeVFSFileSize *bytes_read, GnomeVFSCancellation *cancellation);
Read bytes bytes of data from the socket into buffer.
socket : | socket to read data from |
buffer : | allocated buffer of at least bytes bytes to be read into |
bytes : | number of bytes to read from socket into buffer |
bytes_read : | pointer to a GnomeVFSFileSize, will contain the number of bytes actually read from the socket on return. |
cancellation : | optional cancellation object |
Returns : | GnomeVFSResult indicating the success of the operation |
void gnome_vfs_socket_free (GnomeVFSSocket *socket);
Frees the memory allocated for socket, but does not call any GnomeVFSSocketImpl function.
socket : | The GnomeVFSSocket you want to free. |
Since 2.8
GnomeVFSResult gnome_vfs_socket_set_timeout (GnomeVFSSocket *socket, GTimeVal *timeout, GnomeVFSCancellation *cancellation);
Set a timeout of timeout. If timeout is NULL following operations will block indefinitely).
Note if you set timeout to 0 (means tv_sec and tv_usec are both 0) every following operation will return immediately. (This can be used for polling.)
socket : | socket to set the timeout of |
timeout : | the timeout |
cancellation : | optional cancellation object |
Returns : | GnomeVFSResult indicating the success of the operation |
Since 2.8
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