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diff --git a/docs/en/ranch/1.4/manual/ranch_transport/index.html b/docs/en/ranch/1.4/manual/ranch_transport/index.html index e0ee8844..5b275cda 100644 --- a/docs/en/ranch/1.4/manual/ranch_transport/index.html +++ b/docs/en/ranch/1.4/manual/ranch_transport/index.html @@ -62,494 +62,198 @@ <h1 class="lined-header"><span>ranch_transport(3)</span></h1> -<div class="sect1"> <h2 id="_name">Name</h2> -<div class="sectionbody"> -<div class="paragraph"><p>ranch_transport - behaviour for transport modules</p></div> -</div> -</div> -<div class="sect1"> +<p>ranch_transport - behaviour for transport modules</p> <h2 id="_description">Description</h2> -<div class="sectionbody"> -<div class="paragraph"><p>The <code>ranch_transport</code> behaviour defines the interface used -by Ranch transports.</p></div> -</div> -</div> -<div class="sect1"> +<p>The <code>ranch_transport</code> behaviour defines the interface used by Ranch transports.</p> <h2 id="_types">Types</h2> -<div class="sectionbody"> -<div class="sect2"> -<h3 id="_sendfile_opts_chunk_size_non_neg_integer">sendfile_opts() = [{chunk_size, non_neg_integer()}]</h3> -<div class="paragraph"><p>Options used by the sendfile function and callbacks.</p></div> -<div class="paragraph"><p>Allows configuring the chunk size, in bytes. Defaults to 8191 bytes.</p></div> -</div> -</div> -</div> -<div class="sect1"> +<h3 id="_sendfile_opts_______chunk_size__non_neg_integer">sendfile_opts() = [{chunk_size, non_neg_integer()}]</h3> +<p>Options used by the sendfile function and callbacks.</p> +<p>Allows configuring the chunk size, in bytes. Defaults to 8191 bytes.</p> <h2 id="_callbacks">Callbacks</h2> -<div class="sectionbody"> -<div class="sect2"> -<h3 id="_accept_lsocket_timeout_8594_ok_csocket_error_closed_timeout_atom">accept(LSocket, Timeout) → {ok, CSocket} | {error, closed | timeout | atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -LSocket = CSocket = any() -</dt> -<dd> -<p> -Listening socket. -</p> -</dd> -<dt class="hdlist1"> -Timeout = timeout() -</dt> -<dd> -<p> -Accept timeout. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Accept a connection on the given listening socket.</p></div> -<div class="paragraph"><p>The <code>accept_ack</code> callback will be used to initialize the socket -after accepting the connection. This is most useful when the -transport is not raw TCP, like with SSL for example.</p></div> -</div> -<div class="sect2"> -<h3 id="_accept_ack_csocket_timeout_8594_ok">accept_ack(CSocket, Timeout) → ok</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -Timeout = timeout() -</dt> -<dd> -<p> -Ack timeout. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Perform post-accept initialization of the connection.</p></div> -<div class="paragraph"><p>This function will be called by connection processes -before performing any socket operation. It allows -transports that require extra initialization to perform -their task and make the socket ready to use.</p></div> -</div> -<div class="sect2"> -<h3 id="_close_socket_8594_ok">close(Socket) → ok</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -Socket = any() -</dt> -<dd> -<p> -Socket opened with listen/1 or accept/2. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Close the given socket.</p></div> -</div> -<div class="sect2"> -<h3 id="_controlling_process_socket_pid_8594_ok_error_closed_not_owner_atom">controlling_process(Socket, Pid) → ok | {error, closed | not_owner | atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -Socket = any() -</dt> -<dd> -<p> -Socket opened with listen/1 or accept/2. -</p> -</dd> -<dt class="hdlist1"> -Pid = pid() -</dt> -<dd> -<p> -Pid of the new owner of the socket. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Change the controlling process for the given socket.</p></div> -<div class="paragraph"><p>The controlling process is the process that is allowed to -perform operations on the socket, and that will receive -messages from the socket when active mode is used. When -the controlling process dies, the socket is closed.</p></div> -</div> -<div class="sect2"> -<h3 id="_listen_transopts_8594_ok_lsocket_error_atom">listen(TransOpts) → {ok, LSocket} | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -TransOpts = any() -</dt> -<dd> -<p> -Transport options. -</p> -</dd> -<dt class="hdlist1"> -LSocket = any() -</dt> -<dd> -<p> -Listening socket. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Listen for connections on the given port.</p></div> -<div class="paragraph"><p>The port is given as part of the transport options under -the key <code>port</code>. Any other option is transport dependent.</p></div> -<div class="paragraph"><p>The socket returned by this call can then be used to -accept connections. It is not possible to send or receive -data from the listening socket.</p></div> -</div> -<div class="sect2"> -<h3 id="_messages_8594_ok_closed_error">messages() → {OK, Closed, Error}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -OK = Closed = Error = atom() -</dt> -<dd> -<p> -Tuple names. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Return the atoms used to identify messages sent in active mode.</p></div> -</div> -<div class="sect2"> -<h3 id="_name_8594_name">name() → Name</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -Name = atom() -</dt> -<dd> -<p> -Transport module name. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Return the name of the transport.</p></div> -</div> -<div class="sect2"> -<h3 id="_peername_csocket_8594_ok_ip_port_error_atom">peername(CSocket) → {ok, {IP, Port}} | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -IP = inet:ip_address() -</dt> -<dd> -<p> -IP of the remote endpoint. -</p> -</dd> -<dt class="hdlist1"> -Port = inet:port_number() -</dt> -<dd> -<p> -Port of the remote endpoint. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Return the IP and port of the remote endpoint.</p></div> -</div> -<div class="sect2"> -<h3 id="_recv_csocket_length_timeout_8594_ok_packet_error_closed_timeout_atom">recv(CSocket, Length, Timeout) → {ok, Packet} | {error, closed | timeout | atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -Length = non_neg_integer() -</dt> -<dd> -<p> -Requested length. -</p> -</dd> -<dt class="hdlist1"> -Timeout = timeout() -</dt> -<dd> -<p> -Receive timeout. -</p> -</dd> -<dt class="hdlist1"> -Packet = iodata() | any() -</dt> -<dd> -<p> -Data received. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Receive data from the given socket when in passive mode.</p></div> -<div class="paragraph"><p>Trying to receive data from a socket that is in active mode -will return an error.</p></div> -<div class="paragraph"><p>A length of 0 will return any data available on the socket.</p></div> -<div class="paragraph"><p>While it is possible to use the timeout value <code>infinity</code>, -this is highly discouraged as this could cause your process -to get stuck waiting for data that will never come. This may -happen when a socket becomes half-open due to a crash of the -remote endpoint. Wi-Fi going down is another common culprit -of this issue.</p></div> -</div> -<div class="sect2"> -<h3 id="_send_csocket_packet_8594_ok_error_atom">send(CSocket, Packet) → ok | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -Packet = iodata() -</dt> -<dd> -<p> -Data to be sent. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Send data to the given socket.</p></div> -</div> -<div class="sect2"> -<h3 id="_sendfile_csocket_file_8594_sendfile_csocket_file_0_0">sendfile(CSocket, File) → sendfile(CSocket, File, 0, 0, [])</h3> -<div class="paragraph"><p>Alias of <code>ranch_transport:sendfile/5</code>.</p></div> -</div> -<div class="sect2"> -<h3 id="_sendfile_csocket_file_offset_bytes_8594_sendfile_csocket_file_offset_bytes">sendfile(CSocket, File, Offset, Bytes) → sendfile(CSocket, File, Offset, Bytes, [])</h3> -<div class="paragraph"><p>Alias of <code>ranch_transport:sendfile/5</code>.</p></div> -</div> -<div class="sect2"> -<h3 id="_sendfile_csocket_file_offset_bytes_sfopts_8594_ok_sentbytes_error_atom">sendfile(CSocket, File, Offset, Bytes, SfOpts) → {ok, SentBytes} | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -File = file:filename_all() | file:fd() -</dt> -<dd> -<p> -Filename or file descriptor for the file to be sent. -</p> -</dd> -<dt class="hdlist1"> -Offset = non_neg_integer() -</dt> -<dd> -<p> -Begin sending at this position in the file. -</p> -</dd> -<dt class="hdlist1"> -Bytes = non_neg_integer() -</dt> -<dd> -<p> -Send this many bytes. -</p> -</dd> -<dt class="hdlist1"> -SentBytes = non_neg_integer() -</dt> -<dd> -<p> -This many bytes were sent. -</p> -</dd> -<dt class="hdlist1"> -SfOpts = sendfile_opts() -</dt> -<dd> -<p> -Sendfile options. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Send data from a file to the given socket.</p></div> -<div class="paragraph"><p>The file may be sent full or in parts, and may be specified -by its filename or by an already open file descriptor.</p></div> -<div class="paragraph"><p>Transports that manipulate TCP directly may use the -<code>file:sendfile/{2,4,5}</code> function, which calls the sendfile -syscall where applicable (on Linux, for example). Other -transports can use the <code>sendfile/6</code> function exported from -this module.</p></div> -</div> -<div class="sect2"> -<h3 id="_setopts_csocket_sockopts_8594_ok_error_atom">setopts(CSocket, SockOpts) → ok | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -SockOpts = any() -</dt> -<dd> -<p> -Socket options. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Change options for the given socket.</p></div> -<div class="paragraph"><p>This is mainly useful for switching to active or passive mode -or to set protocol-specific options.</p></div> -</div> -<div class="sect2"> -<h3 id="_shutdown_csocket_how_8594_ok_error_atom">shutdown(CSocket, How) → ok | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -How = read | write | read_write -</dt> -<dd> -<p> -Which side(s) of the socket to close. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Immediately close the socket in one or two directions.</p></div> -</div> -<div class="sect2"> -<h3 id="_sockname_socket_8594_ok_ip_port_error_atom">sockname(Socket) → {ok, {IP, Port}} | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -Socket = any() -</dt> -<dd> -<p> -Socket opened with listen/1 or accept/2. -</p> -</dd> -<dt class="hdlist1"> -IP = inet:ip_address() -</dt> -<dd> -<p> -IP of the local endpoint. -</p> -</dd> -<dt class="hdlist1"> -Port = inet:port_number() -</dt> -<dd> -<p> -Port of the local endpoint. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Return the IP and port of the local endpoint.</p></div> -</div> -</div> -</div> -<div class="sect1"> +<h3 id="_accept_lsocket__timeout______ok__csocket_____error__closed___timeout___atom">accept(LSocket, Timeout) -> {ok, CSocket} | {error, closed | timeout | atom()}</h3> +<dl><dt>LSocket = CSocket = any()</dt> +<dd><p>Listening socket.</p> +</dd> +<dt>Timeout = timeout()</dt> +<dd><p>Accept timeout.</p> +</dd> +</dl> +<p>Accept a connection on the given listening socket.</p> +<p>The <code>accept_ack</code> callback will be used to initialize the socket after accepting the connection. This is most useful when the transport is not raw TCP, like with SSL for example.</p> +<h3 id="_accept_ack_csocket__timeout_____ok">accept_ack(CSocket, Timeout) -> ok</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>Timeout = timeout()</dt> +<dd><p>Ack timeout.</p> +</dd> +</dl> +<p>Perform post-accept initialization of the connection.</p> +<p>This function will be called by connection processes before performing any socket operation. It allows transports that require extra initialization to perform their task and make the socket ready to use.</p> +<h3 id="_close_socket_____ok">close(Socket) -> ok</h3> +<dl><dt>Socket = any()</dt> +<dd><p>Socket opened with listen/1 or accept/2.</p> +</dd> +</dl> +<p>Close the given socket.</p> +<h3 id="_controlling_process_socket__pid_____ok____error__closed___not_owner___atom">controlling_process(Socket, Pid) -> ok | {error, closed | not_owner | atom()}</h3> +<dl><dt>Socket = any()</dt> +<dd><p>Socket opened with listen/1 or accept/2.</p> +</dd> +<dt>Pid = pid()</dt> +<dd><p>Pid of the new owner of the socket.</p> +</dd> +</dl> +<p>Change the controlling process for the given socket.</p> +<p>The controlling process is the process that is allowed to perform operations on the socket, and that will receive messages from the socket when active mode is used. When the controlling process dies, the socket is closed.</p> +<h3 id="_listen_transopts______ok__lsocket_____error__atom">listen(TransOpts) -> {ok, LSocket} | {error, atom()}</h3> +<dl><dt>TransOpts = any()</dt> +<dd><p>Transport options.</p> +</dd> +<dt>LSocket = any()</dt> +<dd><p>Listening socket.</p> +</dd> +</dl> +<p>Listen for connections on the given port.</p> +<p>The port is given as part of the transport options under the key <code>port</code>. Any other option is transport dependent.</p> +<p>The socket returned by this call can then be used to accept connections. It is not possible to send or receive data from the listening socket.</p> +<h3 id="_messages_______ok__closed__error">messages() -> {OK, Closed, Error}</h3> +<dl><dt>OK = Closed = Error = atom()</dt> +<dd><p>Tuple names.</p> +</dd> +</dl> +<p>Return the atoms used to identify messages sent in active mode.</p> +<h3 id="_name______name">name() -> Name</h3> +<dl><dt>Name = atom()</dt> +<dd><p>Transport module name.</p> +</dd> +</dl> +<p>Return the name of the transport.</p> +<h3 id="_peername_csocket______ok___ip__port______error__atom">peername(CSocket) -> {ok, {IP, Port}} | {error, atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>IP = inet:ip_address()</dt> +<dd><p>IP of the remote endpoint.</p> +</dd> +<dt>Port = inet:port_number()</dt> +<dd><p>Port of the remote endpoint.</p> +</dd> +</dl> +<p>Return the IP and port of the remote endpoint.</p> +<h3 id="_recv_csocket__length__timeout______ok__packet_____error__closed___timeout___atom">recv(CSocket, Length, Timeout) -> {ok, Packet} | {error, closed | timeout | atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>Length = non_neg_integer()</dt> +<dd><p>Requested length.</p> +</dd> +<dt>Timeout = timeout()</dt> +<dd><p>Receive timeout.</p> +</dd> +<dt>Packet = iodata() | any()</dt> +<dd><p>Data received.</p> +</dd> +</dl> +<p>Receive data from the given socket when in passive mode.</p> +<p>Trying to receive data from a socket that is in active mode will return an error.</p> +<p>A length of 0 will return any data available on the socket.</p> +<p>While it is possible to use the timeout value <code>infinity</code>, this is highly discouraged as this could cause your process to get stuck waiting for data that will never come. This may happen when a socket becomes half-open due to a crash of the remote endpoint. Wi-Fi going down is another common culprit of this issue.</p> +<h3 id="_send_csocket__packet_____ok____error__atom">send(CSocket, Packet) -> ok | {error, atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>Packet = iodata()</dt> +<dd><p>Data to be sent.</p> +</dd> +</dl> +<p>Send data to the given socket.</p> +<h3 id="_sendfile_csocket__file_____sendfile_csocket__file__0__0">sendfile(CSocket, File) -> sendfile(CSocket, File, 0, 0, [])</h3> +<p>Alias of <code>ranch_transport:sendfile/5</code>.</p> +<h3 id="_sendfile_csocket__file__offset__bytes_____sendfile_csocket__file__offset__bytes">sendfile(CSocket, File, Offset, Bytes) -> sendfile(CSocket, File, Offset, Bytes, [])</h3> +<p>Alias of <code>ranch_transport:sendfile/5</code>.</p> +<h3 id="_sendfile_csocket__file__offset__bytes__sfopts______ok__sentbytes_____error__atom">sendfile(CSocket, File, Offset, Bytes, SfOpts) -> {ok, SentBytes} | {error, atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>File = file:filename_all() | file:fd()</dt> +<dd><p>Filename or file descriptor for the file to be sent.</p> +</dd> +<dt>Offset = non_neg_integer()</dt> +<dd><p>Begin sending at this position in the file.</p> +</dd> +<dt>Bytes = non_neg_integer()</dt> +<dd><p>Send this many bytes.</p> +</dd> +<dt>SentBytes = non_neg_integer()</dt> +<dd><p>This many bytes were sent.</p> +</dd> +<dt>SfOpts = sendfile_opts()</dt> +<dd><p>Sendfile options.</p> +</dd> +</dl> +<p>Send data from a file to the given socket.</p> +<p>The file may be sent full or in parts, and may be specified by its filename or by an already open file descriptor.</p> +<p>Transports that manipulate TCP directly may use the <code>file:sendfile/{2,4,5}</code> function, which calls the sendfile syscall where applicable (on Linux, for example). Other transports can use the <code>sendfile/6</code> function exported from this module.</p> +<h3 id="_setopts_csocket__sockopts_____ok____error__atom">setopts(CSocket, SockOpts) -> ok | {error, atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>SockOpts = any()</dt> +<dd><p>Socket options.</p> +</dd> +</dl> +<p>Change options for the given socket.</p> +<p>This is mainly useful for switching to active or passive mode or to set protocol-specific options.</p> +<h3 id="_shutdown_csocket__how_____ok____error__atom">shutdown(CSocket, How) -> ok | {error, atom()}</h3> +<dl><dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>How = read | write | read_write</dt> +<dd><p>Which side(s) of the socket to close.</p> +</dd> +</dl> +<p>Immediately close the socket in one or two directions.</p> +<h3 id="_sockname_socket______ok___ip__port______error__atom">sockname(Socket) -> {ok, {IP, Port}} | {error, atom()}</h3> +<dl><dt>Socket = any()</dt> +<dd><p>Socket opened with listen/1 or accept/2.</p> +</dd> +<dt>IP = inet:ip_address()</dt> +<dd><p>IP of the local endpoint.</p> +</dd> +<dt>Port = inet:port_number()</dt> +<dd><p>Port of the local endpoint.</p> +</dd> +</dl> +<p>Return the IP and port of the local endpoint.</p> <h2 id="_exports">Exports</h2> -<div class="sectionbody"> -<div class="sect2"> -<h3 id="_sendfile_transport_csocket_file_offset_bytes_sfopts_8594_ok_sentbytes_error_atom">sendfile(Transport, CSocket, File, Offset, Bytes, SfOpts) → {ok, SentBytes} | {error, atom()}</h3> -<div class="dlist"><dl> -<dt class="hdlist1"> -Transport = module() -</dt> -<dd> -<p> -Transport module for this socket. -</p> -</dd> -<dt class="hdlist1"> -CSocket = any() -</dt> -<dd> -<p> -Socket for this connection. -</p> -</dd> -<dt class="hdlist1"> -File = file:filename_all() | file:fd() -</dt> -<dd> -<p> -Filename or file descriptor for the file to be sent. -</p> -</dd> -<dt class="hdlist1"> -Offset = non_neg_integer() -</dt> -<dd> -<p> -Begin sending at this position in the file. -</p> -</dd> -<dt class="hdlist1"> -Bytes = non_neg_integer() -</dt> -<dd> -<p> -Send this many bytes. -</p> -</dd> -<dt class="hdlist1"> -SentBytes = non_neg_integer() -</dt> -<dd> -<p> -This many bytes were sent. -</p> -</dd> -<dt class="hdlist1"> -SfOpts = sendfile_opts() -</dt> -<dd> -<p> -Sendfile options. -</p> -</dd> -</dl></div> -<div class="paragraph"><p>Send data from a file to the given socket.</p></div> -<div class="paragraph"><p>This function emulates the function <code>file:sendfile/{2,4,5}</code> -and may be used when transports are not manipulating TCP -directly.</p></div> -</div> -</div> -</div> +<h3 id="_sendfile_transport__csocket__file__offset__bytes__sfopts______ok__sentbytes_____error__atom">sendfile(Transport, CSocket, File, Offset, Bytes, SfOpts) -> {ok, SentBytes} | {error, atom()}</h3> +<dl><dt>Transport = module()</dt> +<dd><p>Transport module for this socket.</p> +</dd> +<dt>CSocket = any()</dt> +<dd><p>Socket for this connection.</p> +</dd> +<dt>File = file:filename_all() | file:fd()</dt> +<dd><p>Filename or file descriptor for the file to be sent.</p> +</dd> +<dt>Offset = non_neg_integer()</dt> +<dd><p>Begin sending at this position in the file.</p> +</dd> +<dt>Bytes = non_neg_integer()</dt> +<dd><p>Send this many bytes.</p> +</dd> +<dt>SentBytes = non_neg_integer()</dt> +<dd><p>This many bytes were sent.</p> +</dd> +<dt>SfOpts = sendfile_opts()</dt> +<dd><p>Sendfile options.</p> +</dd> +</dl> +<p>Send data from a file to the given socket.</p> +<p>This function emulates the function <code>file:sendfile/{2,4,5}</code> and may be used when transports are not manipulating TCP directly.</p> + @@ -584,6 +288,8 @@ directly.</p></div> + <li><a href="/docs/en/ranch/1.5/manual">1.5</a></li> + <li><a href="/docs/en/ranch/1.4/manual">1.4</a></li> <li><a href="/docs/en/ranch/1.3/manual">1.3</a></li> |