From c6f772a04eafccf03d20b0bbda08c399b4640f38 Mon Sep 17 00:00:00 2001 From: Hans Bolinder Date: Tue, 28 Jun 2011 14:00:10 +0200 Subject: Improve types and specifications of the inet modules --- lib/kernel/doc/src/gen_sctp.xml | 144 ++++++++++++++++----------------- lib/kernel/doc/src/gen_tcp.xml | 23 +++--- lib/kernel/doc/src/gen_udp.xml | 21 +---- lib/kernel/doc/src/inet.xml | 58 ++++---------- lib/kernel/src/gen_sctp.erl | 172 ++++++++++++++++++++++++---------------- lib/kernel/src/gen_tcp.erl | 118 ++++++++++++++++++++++----- lib/kernel/src/gen_udp.erl | 85 +++++++++++++++----- lib/kernel/src/inet.erl | 147 +++++++++------------------------- lib/kernel/src/inet_res.erl | 4 +- 9 files changed, 403 insertions(+), 369 deletions(-) (limited to 'lib') diff --git a/lib/kernel/doc/src/gen_sctp.xml b/lib/kernel/doc/src/gen_sctp.xml index b761b6bd83..c0126ed8c1 100644 --- a/lib/kernel/doc/src/gen_sctp.xml +++ b/lib/kernel/doc/src/gen_sctp.xml @@ -63,7 +63,6 @@ SCTP SOCKET OPTIONS SCTP EXAMPLES SEE ALSO - AUTHORS @@ -80,36 +79,18 @@ - - - - - -

Represents an address of an SCTP socket. - It is a tuple as explained in - inet(3).

- - - - - - - - -

See - inet(3); POSIX Error Codes.

- - - - +

One of the SCTP Socket Options.

- - + + + + + sctp_socket()

Socket identifier returned from open/*.

@@ -175,8 +156,8 @@ #sctp_assoc_change{ state = atom(), error = atom(), - outbound_streams = int(), - inbound_streams = int(), + outbound_streams = integer(), + inbound_streams = integer(), assoc_id = assoc_id() }

The number of outbound and inbound streams can be set by @@ -300,6 +281,19 @@ The default IP and Port are any and 0, meaning bind to all local addresses on any one free port.

+ +

Other options are:

+ + inet6 + +

Set up the socket for IPv6.

+ + inet + +

Set up the socket for IPv4. This is the default.

+ + +

A default set of socket options is used. In particular, the socket is opened in binary and @@ -350,7 +344,7 @@ #sctp_paddr_change{ addr = {ip_address(),port()}, state = atom(), - error = int(), + error = integer(), assoc_id = assoc_id() }

Indicates change of the status of the peer's IP address given by @@ -387,7 +381,7 @@ 

   #sctp_send_failed{
         flags     = true | false,
-        error     = int(),
+        error     = integer(),
         info      = #sctp_sndrcvinfo{},
         assoc_id  = assoc_id()
         data      = binary()
@@ -407,7 +401,7 @@
           
             
   #sctp_adaptation_event{
-        adaptation_ind = int(),
+        adaptation_ind = integer(),
         assoc_id       = assoc_id()
   }            

             
Delivered when a peer sends an Adaptation Layer Indication
@@ -505,7 +499,7 @@
         
         
       
-      {buffer, int()}
+      {buffer, integer()}
       
         
Determines the size of the user-level software buffer used by
           the SCTP driver. Not to be confused with sndbuf
@@ -515,7 +509,7 @@
           In fact, the val(buffer) is automatically set to
           the above maximum when sndbuf or recbuf values are set.

       
-      {tos, int()}
+      {tos, integer()}
       
         
Sets the Type-Of-Service field on the IP datagrams being sent,
           to the given value, which effectively determines a prioritization
@@ -523,7 +517,7 @@
           are system-dependent. TODO: we do not provide
           symbolic names for these values yet.

       
-      {priority, int()}
+      {priority, integer()}
       
         
A protocol-independent equivalent of tos above. Setting
           priority implies setting tos as well.

@@ -542,7 +536,7 @@
           required for high-throughput servers).

         
       
-      {linger, {true|false, int()}
+      {linger, {true|false, integer()}
       
         
Determines the timeout in seconds for flushing unsent data in the
           gen_sctp:close/1 socket call. If the 1st component of the value
@@ -552,14 +546,14 @@
           the flushing time-out in seconds.

         
       
-      {sndbuf, int()}
+      {sndbuf, integer()}
       
         
The size, in bytes, of the *kernel* send buffer for this socket.
           Sending errors would occur for datagrams larger than
           val(sndbuf). Setting this option also adjusts
           the size of the driver buffer (see buffer above).

       
-      {recbuf, int()}
+      {recbuf, integer()}
       
         
The size, in bytes, of the *kernel* recv buffer for this socket.
           Sending errors would occur for datagrams larger than
@@ -571,9 +565,9 @@
         
   #sctp_rtoinfo{
         assoc_id = assoc_id(),
-        initial  = int(),
-        max      = int(),
-        min      = int()
+        initial  = integer(),
+        max      = integer(),
+        min      = integer()
   }        

         
Determines re-transmission time-out parameters, in milliseconds,
           for the association(s) given by assoc_id. 
@@ -586,11 +580,11 @@
         
   #sctp_assocparams{
         assoc_id                 = assoc_id(),
-        asocmaxrxt               = int(),
-        number_peer_destinations = int(),
-        peer_rwnd                = int(),
-        local_rwnd               = int(),
-        cookie_life              = int()
+        asocmaxrxt               = integer(),
+        number_peer_destinations = integer(),
+        peer_rwnd                = integer(),
+        local_rwnd               = integer(),
+        cookie_life              = integer()
   }        

         
Determines association parameters for the association(s) given by
           assoc_id. assoc_id = 0 (default) indicates
@@ -601,10 +595,10 @@
       
         
   #sctp_initmsg{
-       num_ostreams   = int(),
-       max_instreams  = int(),
-       max_attempts   = int(),
-       max_init_timeo = int()
+       num_ostreams   = integer(),
+       max_instreams  = integer(),
+       max_attempts   = integer(),
+       max_init_timeo = integer()
   }        

         
Determines the default parameters which this socket attempts
           to negotiate with its peer while establishing an association with it.
@@ -630,10 +624,11 @@
         
         

       
-      {sctp_autoclose, int()|infinity}
+      {sctp_autoclose, integer() >= 0}
       
         
Determines the time (in seconds) after which an idle association is
-          automatically closed.

+          automatically closed. 0 means that the association is
+          never automatically closed.

       
       {sctp_nodelay, true|false}
       
@@ -655,7 +650,7 @@
         
Turns on|off automatic mapping of IPv4 addresses into IPv6 ones
           (if the socket address family is AF_INET6).

       
-      {sctp_maxseg, int()}
+      {sctp_maxseg, integer()}
       
         
Determines the maximum chunk size if message fragmentation is used.
           If 0, the chunk size is limited by the Path MTU only.

@@ -693,7 +688,7 @@
         
         
   #sctp_setadaptation{
-        adaptation_ind = int()
+        adaptation_ind = integer()
   }        

         
When set, requests that the local endpoint uses the value given by
           adaptation_ind as the Adaptation Indication parameter for
@@ -707,10 +702,10 @@
   #sctp_paddrparams{
         assoc_id   = assoc_id(),
         address    = {IP, Port},
-        hbinterval = int(),
-        pathmaxrxt = int(),
-        pathmtu    = int(),
-        sackdelay  = int(),
+        hbinterval = integer(),
+        pathmaxrxt = integer(),
+        pathmtu    = integer(),
+        sackdelay  = integer(),
         flags      = list()
   }
   IP = ip_address()
@@ -771,14 +766,14 @@
         
         
   #sctp_sndrcvinfo{
-        stream     = int(),
-        ssn        = int(),
+        stream     = integer(),
+        ssn        = integer(),
         flags      = list(),
-        ppid       = int(),
-        context    = int(),
-        timetolive = int(),
-        tsn        = int(),
-        cumtsn     = int(),
+        ppid       = integer(),
+        context    = integer(),
+        timetolive = integer(),
+        tsn        = integer(),
+        cumtsn     = integer(),
         assoc_id   = assoc_id()
   }        

         
#sctp_sndrcvinfo{} is used both in this socket option, and as
@@ -853,7 +848,7 @@
         
   #sctp_assoc_value{
         assoc_id    = assoc_id(),
-        assoc_value = int()
+        assoc_value = integer()
   }        

         
Rarely used. Determines the ACK time
           (given by assoc_value in milliseconds) for
@@ -866,12 +861,12 @@
   #sctp_status{
         assoc_id            = assoc_id(),
         state               = atom(),
-        rwnd                = int(),
-        unackdata           = int(),
-        penddata            = int(),
-        instrms             = int(),
-        outstrms            = int(),
-        fragmentation_point = int(),
+        rwnd                = integer(),
+        unackdata           = integer(),
+        penddata            = integer(),
+        instrms             = integer(),
+        outstrms            = integer(),
+        fragmentation_point = integer(),
         primary             = #sctp_paddrinfo{}
   }

This option is read-only. It determines the status of @@ -946,10 +941,10 @@ assoc_id = assoc_id(), address = {IP, Port}, state = inactive | active, - cwnd = int(), - srtt = int(), - rto = int(), - mtu = int() + cwnd = integer(), + srtt = integer(), + rto = integer(), + mtu = integer() } IP = ip_address() Port = port_number() @@ -1119,7 +1114,6 @@ client_loop(S, Peer1, Port1, AssocId1, Peer2, Port2, AssocId2) -> gen_udp(3), RFC2960 (Stream Control Transmission Protocol), Sockets API Extensions for SCTP.

- diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml index ebd822359a..8a5d40bb16 100644 --- a/lib/kernel/doc/src/gen_tcp.xml +++ b/lib/kernel/doc/src/gen_tcp.xml @@ -65,25 +65,16 @@ do_recv(Sock, Bs) -> - + - - -

Represents an address of a TCP socket. - It is a tuple as explained in - inet(3).

- + - + - - -

See - inet(3); POSIX Error Codes.

- + socket() @@ -122,7 +113,7 @@ do_recv(Sock, Bs) ->

Specify which local port number to use.

 - {fd, int()} + {fd, integer() >= 0}

If a socket has somehow been connected without using gen_tcp, use this option to pass the file @@ -196,6 +187,10 @@ do_recv(Sock, Bs) ->

If the host has several network interfaces, this option specifies which one to listen on.

 + {port, Port} + +

Specify which local port number to use.

+ {fd, Fd}

If a socket has somehow been connected without using diff --git a/lib/kernel/doc/src/gen_udp.xml b/lib/kernel/doc/src/gen_udp.xml index c0e783f508..daa9b7d887 100644 --- a/lib/kernel/doc/src/gen_udp.xml +++ b/lib/kernel/doc/src/gen_udp.xml @@ -36,25 +36,10 @@ - + - - -

Represents an address of a TCP socket. - It is a tuple as explained in - inet(3).

- - - - - - - - -

See - inet(3); POSIX Error Codes.

- + socket() @@ -87,7 +72,7 @@

If the host has several network interfaces, this option specifies which one to use.

- {fd, int()} + {fd, integer() >= 0}

If a socket has somehow been opened without using gen_udp, use this option to pass the file diff --git a/lib/kernel/doc/src/inet.xml b/lib/kernel/doc/src/inet.xml index fd843b00d9..b36c28e027 100644 --- a/lib/kernel/doc/src/inet.xml +++ b/lib/kernel/doc/src/inet.xml @@ -104,6 +104,9 @@ fe80::204:acff:fe17:bf38 + + +

An atom which is named from the Posix error codes @@ -119,7 +122,7 @@ fe80::204:acff:fe17:bf38 - + @@ -250,26 +253,15 @@ fe80::204:acff:fe17:bf38 - getopts(Socket, Options) -> {ok, OptionValues} | {error, posix()} + Get one or more options for a socket - - Socket = term() - Options = [Opt | RawOptReq] - Opt = atom() - RawOptReq = {raw, Protocol, OptionNum, ValueSpec} - Protocol = integer() - OptionNum = integer() - ValueSpec = ValueSize | ValueBin - ValueSize = integer() - ValueBin = binary() - OptionValues = [{Opt, Val} | {raw, Protocol, OptionNum, ValueBin}] - +

Gets one or more options for a socket. See setopts/2 for a list of available options.

-

The number of elements in the returned OptionValues +

The number of elements in the returned OptionValues list does not necessarily correspond to the number of options asked for. If the operating system fails to support an option, it is simply left out in the returned list. An error tuple is only @@ -277,12 +269,12 @@ fe80::204:acff:fe17:bf38 (i.e. the socket is closed or the buffer size in a raw request is too large). This behavior is kept for backward compatibility reasons.

-

A RawOptReq can be used to get information about +

A raw option request RawOptReq = {raw, Protocol, OptionNum, ValueSpec} can be used to get information about socket options not (explicitly) supported by the emulator. The use of raw socket options makes the code non portable, but allows the Erlang programmer to take advantage of unusual features present on the current platform.

-

The RawOptReq consists of the tag raw followed +

The RawOptReq consists of the tag raw followed by the protocol level, the option number and either a binary or the size, in bytes, of the buffer in which the option value is to be stored. A binary @@ -325,19 +317,14 @@ fe80::204:acff:fe17:bf38 - getstat(Socket) - getstat(Socket, Options) -> {ok, OptionValues} | {error, posix()} + + Get one or more statistic options for a socket - - Socket = term() - Options = [Opt] - OptionValues = [{Opt, Val}] -  Opt, Val -- see below - +

Gets one or more statistic options for a socket.

-

getstat(Socket) is equivalent to - getstat(Socket, [recv_avg, recv_cnt, recv_dvi, recv_max, recv_oct, send_avg, send_cnt, send_dvi, send_max, send_oct])

+

getstat(Socket) is equivalent to + getstat(Socket, [recv_avg, recv_cnt, recv_dvi, recv_max, recv_oct, send_avg, send_cnt, send_dvi, send_max, send_oct])

The following options are available:

recv_avg @@ -394,12 +381,8 @@ fe80::204:acff:fe17:bf38 - port(Socket) -> {ok, Port} | {error, any()} + Return the local port number for a socket - - Socket = socket() - Port = integer() -

Returns the local port number for a socket.

 @@ -412,16 +395,9 @@ fe80::204:acff:fe17:bf38 - setopts(Socket, Options) -> ok | {error, posix()} + Set one or more options for a socket - - Socket = term() - Options = [{Opt, Val} | {raw, Protocol, Option, ValueBin}] - Protocol = integer() - OptionNum = integer() - ValueBin = binary() -  Opt, Val -- see below - +

Sets one or more options for a socket. The following options are available:

diff --git a/lib/kernel/src/gen_sctp.erl b/lib/kernel/src/gen_sctp.erl index 004f03f231..c9a849eca7 100644 --- a/lib/kernel/src/gen_sctp.erl +++ b/lib/kernel/src/gen_sctp.erl @@ -34,54 +34,84 @@ -export([controlling_process/2]). -opaque assoc_id() :: term(). --type hostname() :: inet:hostname(). --type ip_address() :: inet:ip_address(). --type port_number() :: 0..65535. --type posix() :: inet:posix(). --type sctp_option() :: - {mode, list | binary} | list | binary - | {active, true | false | once} - | {buffer, non_neg_integer()} - | {tos, integer()} - | {priority, integer()} - | {dontroute, boolean()} - | {reuseaddr, boolean()} - | {linger, {boolean(), non_neg_integer()}} - | {sndbuf, non_neg_integer()} - | {recbuf, non_neg_integer()} - | {sctp_rtoinfo, #sctp_rtoinfo{}} - | {sctp_associnfo, #sctp_assocparams{}} - | {sctp_initmsg, #sctp_initmsg{}} - | {sctp_autoclose, timeout()} - | {sctp_nodelay, boolean()} - | {sctp_disable_fragments, boolean()} - | {sctp_i_want_mapped_v4_addr, boolean()} - | {sctp_maxseg, non_neg_integer()} - | {sctp_primary_addr, #sctp_prim{}} - | {sctp_set_peer_primary_addr, #sctp_setpeerprim{}} - | {sctp_adaptation_layer, #sctp_setadaptation{}} - | {sctp_peer_addr_params, #sctp_paddrparams{}} - | {sctp_default_send_param, #sctp_sndrcvinfo{}} - | {sctp_events, #sctp_event_subscribe{}} - | {sctp_delayed_ack_time, #sctp_assoc_value{}} - | {sctp_status, #sctp_status{}} - | {sctp_get_peer_addr_info, #sctp_paddrinfo{}}. --opaque sctp_socket() :: port(). - --spec open() -> {ok, Socket} | {error, posix()} when +-type option() :: + {active, true | false | once} | + {buffer, non_neg_integer()} | + {dontroute, boolean()} | + {linger, {boolean(), non_neg_integer()}} | + {mode, list | binary} | list | binary | + {priority, non_neg_integer()} | + {recbuf, non_neg_integer()} | + {reuseaddr, boolean()} | + {sctp_adaptation_layer, #sctp_setadaptation{}} | + {sctp_associnfo, #sctp_assocparams{}} | + {sctp_autoclose, non_neg_integer()} | + {sctp_default_send_param, #sctp_sndrcvinfo{}} | + {sctp_delayed_ack_time, #sctp_assoc_value{}} | + {sctp_disable_fragments, boolean()} | + {sctp_events, #sctp_event_subscribe{}} | + {sctp_get_peer_addr_info, #sctp_paddrinfo{}} | + {sctp_i_want_mapped_v4_addr, boolean()} | + {sctp_initmsg, #sctp_initmsg{}} | + {sctp_maxseg, non_neg_integer()} | + {sctp_nodelay, boolean()} | + {sctp_peer_addr_params, #sctp_paddrparams{}} | + {sctp_primary_addr, #sctp_prim{}} | + {sctp_rtoinfo, #sctp_rtoinfo{}} | + {sctp_set_peer_primary_addr, #sctp_setpeerprim{}} | + {sctp_status, #sctp_status{}} | + {sndbuf, non_neg_integer()} | + {tos, non_neg_integer()}. +-type option_name() :: + active | + buffer | + dontroute | + linger | + mode | + priority | + recbuf | + reuseaddr | + sctp_adaptation_layer | + sctp_associnfo | + sctp_autoclose | + sctp_default_send_param | + sctp_delayed_ack_time | + sctp_disable_fragments | + sctp_events | + sctp_get_peer_addr_info | + sctp_i_want_mapped_v4_addr | + sctp_initmsg | + sctp_maxseg | + sctp_nodelay | + sctp_peer_addr_params | + sctp_primary_addr | + sctp_rtoinfo | + sctp_set_peer_primary_addr | + sctp_status | + sndbuf | + tos. +-type sctp_socket() :: port(). + +-export_type([option/0, option_name/0]). + +-spec open() -> {ok, Socket} | {error, inet:posix()} when Socket :: sctp_socket(). open() -> open([]). --spec open(Port) -> {ok, Socket} | {error, posix()} when - Port :: port_number(), +-spec open(Port) -> {ok, Socket} | {error, inet:posix()} when + Port :: inet:port_number(), Socket :: sctp_socket(); - (Opts) -> {ok, Socket} | {error, posix()} when + (Opts) -> {ok, Socket} | {error, inet:posix()} when Opts :: [Opt], - Opt :: {ip,IP} | {ifaddr,IP} | {port,Port} | sctp_option(), - IP :: ip_address() | any | loopback, - Port :: port_number(), + Opt :: {ip,IP} + | {ifaddr,IP} + | inet:address_family() + | {port,Port} + | option(), + IP :: inet:ip_address() | any | loopback, + Port :: inet:port_number(), Socket :: sctp_socket(). open(Opts) when is_list(Opts) -> @@ -98,11 +128,15 @@ open(Port) when is_integer(Port) -> open(X) -> erlang:error(badarg, [X]). --spec open(Port, Opts) -> {ok, Socket} | {error, posix()} when +-spec open(Port, Opts) -> {ok, Socket} | {error, inet:posix()} when Opts :: [Opt], - Opt :: {ip,IP} | {ifaddr,IP} | {port,Port} | sctp_option(), - IP :: ip_address() | any | loopback, - Port :: port_number(), + Opt :: {ip,IP} + | {ifaddr,IP} + | inet:address_family() + | {port,Port} + | option(), + IP :: inet:ip_address() | any | loopback, + Port :: inet:port_number(), Socket :: sctp_socket(). open(Port, Opts) when is_integer(Port), is_list(Opts) -> @@ -110,7 +144,7 @@ open(Port, Opts) when is_integer(Port), is_list(Opts) -> open(Port, Opts) -> erlang:error(badarg, [Port,Opts]). --spec close(Socket) -> ok | {error, posix()} when +-spec close(Socket) -> ok | {error, inet:posix()} when Socket :: sctp_socket(). close(S) when is_port(S) -> @@ -138,22 +172,22 @@ listen(S, Flag) when is_port(S), is_boolean(Flag) -> listen(S, Flag) -> erlang:error(badarg, [S,Flag]). --spec connect(Socket, Addr, Port, Opts) -> {ok, Assoc} | {error, posix()} when +-spec connect(Socket, Addr, Port, Opts) -> {ok, Assoc} | {error, inet:posix()} when Socket :: sctp_socket(), - Addr :: ip_address() | hostname(), - Port :: port_number(), - Opts :: [Opt :: sctp_option()], + Addr :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Opts :: [Opt :: option()], Assoc :: #sctp_assoc_change{}. connect(S, Addr, Port, Opts) -> connect(S, Addr, Port, Opts, infinity). -spec connect(Socket, Addr, Port, Opts, Timeout) -> - {ok, Assoc} | {error, posix()} when + {ok, Assoc} | {error, inet:posix()} when Socket :: sctp_socket(), - Addr :: ip_address() | hostname(), - Port :: port_number(), - Opts :: [Opt :: sctp_option()], + Addr :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Opts :: [Opt :: option()], Timeout :: timeout(), Assoc :: #sctp_assoc_change{}. @@ -166,21 +200,21 @@ connect(S, Addr, Port, Opts, Timeout) -> end. -spec connect_init(Socket, Addr, Port, Opts) -> - ok | {error, posix()} when + ok | {error, inet:posix()} when Socket :: sctp_socket(), - Addr :: ip_address() | hostname(), - Port :: port_number(), - Opts :: [sctp_option()]. + Addr :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Opts :: [option()]. connect_init(S, Addr, Port, Opts) -> connect_init(S, Addr, Port, Opts, infinity). -spec connect_init(Socket, Addr, Port, Opts, Timeout) -> - ok | {error, posix()} when + ok | {error, inet:posix()} when Socket :: sctp_socket(), - Addr :: ip_address() | hostname(), - Port :: port_number(), - Opts :: [sctp_option()], + Addr :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Opts :: [option()], Timeout :: timeout(). connect_init(S, Addr, Port, Opts, Timeout) -> @@ -232,7 +266,7 @@ eof(S, #sctp_assoc_change{assoc_id=AssocId}) when is_port(S) -> eof(S, Assoc) -> erlang:error(badarg, [S,Assoc]). --spec abort(Socket, Assoc) -> ok | {error, posix()} when +-spec abort(Socket, Assoc) -> ok | {error, inet:posix()} when Socket :: sctp_socket(), Assoc :: #sctp_assoc_change{}. @@ -294,13 +328,13 @@ send(S, AssocChange, Stream, Data) -> -spec recv(Socket) -> {ok, {FromIP, FromPort, AncData, Data}} | {error, Reason} when Socket :: sctp_socket(), - FromIP :: ip_address(), - FromPort :: port_number(), + FromIP :: inet:ip_address(), + FromPort :: inet:port_number(), AncData :: [#sctp_sndrcvinfo{}], Data :: binary() | string() | #sctp_sndrcvinfo{} | #sctp_assoc_change{} | #sctp_paddr_change{} | #sctp_adaptation_event{}, - Reason :: posix() | #sctp_send_failed{} | #sctp_paddr_change{} + Reason :: inet:posix() | #sctp_send_failed{} | #sctp_paddr_change{} | #sctp_pdapi_event{} | #sctp_remote_error{} | #sctp_shutdown_event{}. @@ -311,13 +345,13 @@ recv(S) -> | {error, Reason} when Socket :: sctp_socket(), Timeout :: timeout(), - FromIP :: ip_address(), - FromPort :: port_number(), + FromIP :: inet:ip_address(), + FromPort :: inet:port_number(), AncData :: [#sctp_sndrcvinfo{}], Data :: binary() | string() | #sctp_sndrcvinfo{} | #sctp_assoc_change{} | #sctp_paddr_change{} | #sctp_adaptation_event{}, - Reason :: posix() | #sctp_send_failed{} | #sctp_paddr_change{} + Reason :: inet:posix() | #sctp_send_failed{} | #sctp_paddr_change{} | #sctp_pdapi_event{} | #sctp_remote_error{} | #sctp_shutdown_event{}. diff --git a/lib/kernel/src/gen_tcp.erl b/lib/kernel/src/gen_tcp.erl index bee61ca84a..df326b59d6 100644 --- a/lib/kernel/src/gen_tcp.erl +++ b/lib/kernel/src/gen_tcp.erl @@ -28,34 +28,108 @@ -include("inet_int.hrl"). --type hostname() :: inet:hostname(). --type ip_address() :: inet:ip_address(). --type port_number() :: 0..65535. --type posix() :: inet:posix(). +-type option() :: + {active, true | false | once} | + {bit8, clear | set | on | off} | + {buffer, non_neg_integer()} | + {delay_send, boolean()} | + {deliver, port | term} | + {dontroute, boolean()} | + {exit_on_close, boolean()} | + {header, non_neg_integer()} | + {high_watermark, non_neg_integer()} | + {keepalive, boolean()} | + {linger, {boolean(), non_neg_integer()}} | + {low_watermark, non_neg_integer()} | + {mode, list | binary} | list | binary | + {nodelay, boolean()} | + {packet, + 0 | 1 | 2 | 4 | raw | sunrm | asn1 | + cdr | fcgi | line | tpkt | http | httph | http_bin | httph_bin } | + {packet_size, non_neg_integer()} | + {priority, non_neg_integer()} | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueBin :: binary()} | + {recbuf, non_neg_integer()} | + {reuseaddr, boolean()} | + {send_timeout, non_neg_integer() | infinity} | + {send_timeout_close, boolean()} | + {sndbuf, non_neg_integer()} | + {tos, non_neg_integer()}. +-type option_name() :: + active | + bit8 | + buffer | + delay_send | + deliver | + dontroute | + exit_on_close | + header | + high_watermark | + keepalive | + linger | + low_watermark | + mode | + nodelay | + packet | + packet_size | + priority | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueSpec :: (ValueSize :: non_neg_integer()) | + (ValueBin :: binary())} | + recbuf | + reuseaddr | + send_timeout | + send_timeout_close | + sndbuf | + tos. +-type connect_option() :: + {ip, inet:ip_address()} | + {fd, Fd :: non_neg_integer()} | + {ifaddr, inet:ip_address()} | + inet:address_family() | + {port, inet:port_number()} | + {tcp_module, module()} | + option(). +-type listen_option() :: + {ip, inet:ip_address()} | + {fd, Fd :: non_neg_integer()} | + {ifaddr, inet:ip_address()} | + inet:address_family() | + {port, inet:port_number()} | + {backlog, B :: non_neg_integer()} | + {tcp_module, module()} | + option(). -type socket() :: port(). +-export_type([option/0, option_name/0, connect_option/0, listen_option/0]). + %% %% Connect a socket %% -spec connect(Address, Port, Options) -> {ok, Socket} | {error, Reason} when - Address :: ip_address() | hostname(), - Port :: port_number(), - Options :: [Opt :: term()], + Address :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Options :: [connect_option()], Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). connect(Address, Port, Opts) -> connect(Address,Port,Opts,infinity). -spec connect(Address, Port, Options, Timeout) -> {ok, Socket} | {error, Reason} when - Address :: ip_address() | hostname(), - Port :: port_number(), - Options :: [Opt :: term()], + Address :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), + Options :: [connect_option()], Timeout :: timeout(), Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). connect(Address, Port, Opts, Time) -> Timer = inet:start_timer(Time), @@ -97,10 +171,10 @@ try_connect([], _Port, _Opts, _Timer, _Mod, Err) -> %% -spec listen(Port, Options) -> {ok, ListenSocket} | {error, Reason} when - Port :: port_number(), - Options :: [Opt :: term()], + Port :: inet:port_number(), + Options :: [listen_option()], ListenSocket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). listen(Port, Opts) -> Mod = mod(Opts, undefined), @@ -119,7 +193,7 @@ listen(Port, Opts) -> -spec accept(ListenSocket) -> {ok, Socket} | {error, Reason} when ListenSocket :: socket(), Socket :: socket(), - Reason :: closed | timeout | posix(). + Reason :: closed | timeout | inet:posix(). accept(S) -> case inet_db:lookup_socket(S) of @@ -133,7 +207,7 @@ accept(S) -> ListenSocket :: socket(), Timeout :: timeout(), Socket :: socket(), - Reason :: closed | timeout | posix(). + Reason :: closed | timeout | inet:posix(). accept(S, Time) when is_port(S) -> case inet_db:lookup_socket(S) of @@ -150,7 +224,7 @@ accept(S, Time) when is_port(S) -> -spec shutdown(Socket, How) -> ok | {error, Reason} when Socket :: socket(), How :: read | write | read_write, - Reason :: posix(). + Reason :: inet:posix(). shutdown(S, How) when is_port(S) -> case inet_db:lookup_socket(S) of @@ -177,7 +251,7 @@ close(S) -> -spec send(Socket, Packet) -> ok | {error, Reason} when Socket :: socket(), Packet :: string() | binary(), - Reason :: posix(). + Reason :: inet:posix(). send(S, Packet) when is_port(S) -> case inet_db:lookup_socket(S) of @@ -195,7 +269,7 @@ send(S, Packet) when is_port(S) -> Socket :: socket(), Length :: non_neg_integer(), Packet :: string() | binary() | HttpPacket, - Reason :: closed | posix(), + Reason :: closed | inet:posix(), HttpPacket :: term(). recv(S, Length) when is_port(S) -> @@ -211,7 +285,7 @@ recv(S, Length) when is_port(S) -> Length :: non_neg_integer(), Timeout :: timeout(), Packet :: string() | binary() | HttpPacket, - Reason :: closed | posix(), + Reason :: closed | inet:posix(), HttpPacket :: term(). recv(S, Length, Time) when is_port(S) -> @@ -237,7 +311,7 @@ unrecv(S, Data) when is_port(S) -> -spec controlling_process(Socket, Pid) -> ok | {error, Reason} when Socket :: socket(), Pid :: pid(), - Reason :: closed | not_owner | posix(). + Reason :: closed | not_owner | inet:posix(). controlling_process(S, NewOwner) -> case inet_db:lookup_socket(S) of diff --git a/lib/kernel/src/gen_udp.erl b/lib/kernel/src/gen_udp.erl index 7d14615c04..554f4ece4a 100644 --- a/lib/kernel/src/gen_udp.erl +++ b/lib/kernel/src/gen_udp.erl @@ -25,25 +25,74 @@ -include("inet_int.hrl"). --type hostname() :: inet:hostname(). --type ip_address() :: inet:ip_address(). --type port_number() :: 0..65535. --type posix() :: inet:posix(). +-type option() :: + {active, true | false | once} | + {add_membership, {inet:ip_address(), inet:ip_address()}} | + {broadcast, boolean()} | + {buffer, non_neg_integer()} | + {deliver, port | term} | + {dontroute, boolean()} | + {drop_membership, {inet:ip_address(), inet:ip_address()}} | + {header, non_neg_integer()} | + {mode, list | binary} | list | binary | + {multicast_if, inet:ip_address()} | + {multicast_loop, boolean()} | + {multicast_ttl, non_neg_integer()} | + {priority, non_neg_integer()} | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueBin :: binary()} | + {read_packets, non_neg_integer()} | + {recbuf, non_neg_integer()} | + {reuseaddr, boolean()} | + {sndbuf, non_neg_integer()} | + {tos, non_neg_integer()}. +-type option_name() :: + active | + broadcast | + buffer | + deliver | + dontroute | + header | + mode | + multicast_if | + multicast_loop | + multicast_ttl | + priority | + {raw, + Protocol :: non_neg_integer(), + OptionNum :: non_neg_integer(), + ValueSpec :: (ValueSize :: non_neg_integer()) | + (ValueBin :: binary())} | + read_packets | + recbuf | + reuseaddr | + sndbuf | + tos. -type socket() :: port(). +-export_type([option/0, option_name/0]). + -spec open(Port) -> {ok, Socket} | {error, Reason} when - Port :: port_number(), + Port :: inet:port_number(), Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). open(Port) -> open(Port, []). -spec open(Port, Opts) -> {ok, Socket} | {error, Reason} when - Port :: port_number(), - Opts :: [Opt :: term()], + Port :: inet:port_number(), + Opts :: [Option], + Option :: {ip, inet:ip_address()} + | {fd, non_neg_integer()} + | {ifaddr, inet:ip_address()} + | inet:address_family() + | {port, inet:port_number()} + | option(), Socket :: socket(), - Reason :: posix(). + Reason :: inet:posix(). open(Port, Opts) -> Mod = mod(Opts, undefined), @@ -58,10 +107,10 @@ close(S) -> -spec send(Socket, Address, Port, Packet) -> ok | {error, Reason} when Socket :: socket(), - Address :: ip_address() | hostname(), - Port :: port_number(), + Address :: inet:ip_address() | inet:hostname(), + Port :: inet:port_number(), Packet :: string() | binary(), - Reason :: not_owner | posix(). + Reason :: not_owner | inet:posix(). send(S, Address, Port, Packet) when is_port(S) -> case inet_db:lookup_socket(S) of @@ -92,10 +141,10 @@ send(S, Packet) when is_port(S) -> {ok, {Address, Port, Packet}} | {error, Reason} when Socket :: socket(), Length :: non_neg_integer(), - Address :: ip_address(), - Port :: port_number(), + Address :: inet:ip_address(), + Port :: inet:port_number(), Packet :: string() | binary(), - Reason :: not_owner | posix(). + Reason :: not_owner | inet:posix(). recv(S,Len) when is_port(S), is_integer(Len) -> case inet_db:lookup_socket(S) of @@ -110,10 +159,10 @@ recv(S,Len) when is_port(S), is_integer(Len) -> Socket :: socket(), Length :: non_neg_integer(), Timeout :: timeout(), - Address :: ip_address(), - Port :: port_number(), + Address :: inet:ip_address(), + Port :: inet:port_number(), Packet :: string() | binary(), - Reason :: not_owner | posix(). + Reason :: not_owner | inet:posix(). recv(S,Len,Time) when is_port(S) -> case inet_db:lookup_socket(S) of diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl index 5649188c38..48a6f3db65 100644 --- a/lib/kernel/src/inet.erl +++ b/lib/kernel/src/inet.erl @@ -63,8 +63,9 @@ %% timer interface -export([start_timer/1, timeout/1, timeout/2, stop_timer/1]). --export_type([family_option/0, hostent/0, hostname/0, ip4_address/0, - ip6_address/0, ip_address/0, posix/0, socket/0]). +-export_type([address_family/0, hostent/0, hostname/0, ip4_address/0, + ip6_address/0, ip_address/0, posix/0, socket/0, + port_number/0]). %% imports -import(lists, [append/1, duplicate/2, filter/2, foldl/3]). @@ -87,98 +88,15 @@ -type ip6_address() :: {0..65535,0..65535,0..65535,0..65535, 0..65535,0..65535,0..65535,0..65535}. -type ip_address() :: ip4_address() | ip6_address(). --type ip_port() :: 0..65535. +-type port_number() :: 0..65535. -type posix() :: exbadport | exbadseq | file:posix(). -type socket() :: port(). -type socket_setopt() :: - {'raw', non_neg_integer(), non_neg_integer(), binary()} | - %% TCP/UDP options - {'reuseaddr', boolean()} | - {'keepalive', boolean()} | - {'dontroute', boolean()} | - {'linger', {boolean(), non_neg_integer()}} | - {'broadcast', boolean()} | - {'sndbuf', non_neg_integer()} | - {'recbuf', non_neg_integer()} | - {'priority', non_neg_integer()} | - {'tos', non_neg_integer()} | - {'nodelay', boolean()} | - {'multicast_ttl', non_neg_integer()} | - {'multicast_loop', boolean()} | - {'multicast_if', ip_address()} | - {'add_membership', {ip_address(), ip_address()}} | - {'drop_membership', {ip_address(), ip_address()}} | - {'header', non_neg_integer()} | - {'buffer', non_neg_integer()} | - {'active', boolean() | 'once'} | - {'packet', - 0 | 1 | 2 | 4 | 'raw' | 'sunrm' | 'asn1' | - 'cdr' | 'fcgi' | 'line' | 'tpkt' | 'http' | 'httph' | 'http_bin' | 'httph_bin' } | - {'mode', 'list' | 'binary'} | - {'port', 'port', 'term'} | - {'exit_on_close', boolean()} | - {'low_watermark', non_neg_integer()} | - {'high_watermark', non_neg_integer()} | - {'bit8', 'clear' | 'set' | 'on' | 'off'} | - {'send_timeout', non_neg_integer() | 'infinity'} | - {'send_timeout_close', boolean()} | - {'delay_send', boolean()} | - {'packet_size', non_neg_integer()} | - {'read_packets', non_neg_integer()} | - %% SCTP options - {'sctp_rtoinfo', #sctp_rtoinfo{}} | - {'sctp_associnfo', #sctp_assocparams{}} | - {'sctp_initmsg', #sctp_initmsg{}} | - {'sctp_nodelay', boolean()} | - {'sctp_autoclose', non_neg_integer()} | - {'sctp_disable_fragments', boolean()} | - {'sctp_i_want_mapped_v4_addr', boolean()} | - {'sctp_maxseg', non_neg_integer()} | - {'sctp_primary_addr', #sctp_prim{}} | - {'sctp_set_peer_primary_addr', #sctp_setpeerprim{}} | - {'sctp_adaptation_layer', #sctp_setadaptation{}} | - {'sctp_peer_addr_params', #sctp_paddrparams{}} | - {'sctp_default_send_param', #sctp_sndrcvinfo{}} | - {'sctp_events', #sctp_event_subscribe{}} | - {'sctp_delayed_ack_time', #sctp_assoc_value{}}. + gen_sctp:option() | gen_tcp:option() | gen_udp:option(). -type socket_getopt() :: - {'raw', - non_neg_integer(), non_neg_integer(), binary()|non_neg_integer()} | - %% TCP/UDP options - 'reuseaddr' | 'keepalive' | 'dontroute' | 'linger' | - 'broadcast' | 'sndbuf' | 'recbuf' | 'priority' | 'tos' | 'nodelay' | - 'multicast_ttl' | 'multicast_loop' | 'multicast_if' | - 'add_membership' | 'drop_membership' | - 'header' | 'buffer' | 'active' | 'packet' | 'mode' | 'port' | - 'exit_on_close' | 'low_watermark' | 'high_watermark' | 'bit8' | - 'send_timeout' | 'send_timeout_close' | - 'delay_send' | 'packet_size' | 'read_packets' | - %% SCTP options - {'sctp_status', #sctp_status{}} | - 'sctp_get_peer_addr_info' | - {'sctp_get_peer_addr_info', #sctp_status{}} | - 'sctp_rtoinfo' | - {'sctp_rtoinfo', #sctp_rtoinfo{}} | - 'sctp_associnfo' | - {'sctp_associnfo', #sctp_assocparams{}} | - 'sctp_initmsg' | - {'sctp_initmsg', #sctp_initmsg{}} | - 'sctp_nodelay' | 'sctp_autoclose' | 'sctp_disable_fragments' | - 'sctp_i_want_mapped_v4_addr' | 'sctp_maxseg' | - {'sctp_primary_addr', #sctp_prim{}} | - {'sctp_set_peer_primary_addr', #sctp_setpeerprim{}} | - 'sctp_adaptation_layer' | - {'sctp_adaptation_layer', #sctp_setadaptation{}} | - {'sctp_peer_addr_params', #sctp_paddrparams{}} | - 'sctp_default_send_param' | - {'sctp_default_send_param', #sctp_sndrcvinfo{}} | - 'sctp_events' | - {'sctp_events', #sctp_event_subscribe{}} | - 'sctp_delayed_ack_time' | - {'sctp_delayed_ack_time', #sctp_assoc_value{}}. - + gen_sctp:option_name() | gen_tcp:option_name() | gen_udp:option_name(). -type ether_address() :: [0..255]. -type if_setopt() :: @@ -196,7 +114,7 @@ 'addr' | 'broadaddr' | 'dstaddr' | 'mtu' | 'netmask' | 'flags' |'hwaddr'. --type family_option() :: 'inet' | 'inet6'. +-type address_family() :: 'inet' | 'inet6'. -type protocol_option() :: 'tcp' | 'udp' | 'sctp'. -type stat_option() :: 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | @@ -229,7 +147,7 @@ close(Socket) -> peername(Socket) -> prim_inet:peername(Socket). --spec setpeername(Socket :: socket(), Address :: {ip_address(), ip_port()}) -> +-spec setpeername(Socket :: socket(), Address :: {ip_address(), port_number()}) -> 'ok' | {'error', any()}. setpeername(Socket, {IP,Port}) -> @@ -246,7 +164,7 @@ setpeername(Socket, undefined) -> sockname(Socket) -> prim_inet:sockname(Socket). --spec setsockname(Socket :: socket(), Address :: {ip_address(), ip_port()}) -> +-spec setsockname(Socket :: socket(), Address :: {ip_address(), port_number()}) -> 'ok' | {'error', any()}. setsockname(Socket, {IP,Port}) -> @@ -254,7 +172,9 @@ setsockname(Socket, {IP,Port}) -> setsockname(Socket, undefined) -> prim_inet:setsockname(Socket, undefined). --spec port(Socket :: socket()) -> {'ok', ip_port()} | {'error', any()}. +-spec port(Socket) -> {'ok', Port} | {'error', any()} when + Socket :: socket(), + Port :: port_number(). port(Socket) -> case prim_inet:sockname(Socket) of @@ -268,16 +188,18 @@ port(Socket) -> send(Socket, Packet) -> prim_inet:send(Socket, Packet). --spec setopts(Socket :: socket(), Opts :: [socket_setopt()]) -> - 'ok' | {'error', posix()}. +-spec setopts(Socket, Options) -> ok | {error, posix()} when + Socket :: socket(), + Options :: [socket_setopt()]. setopts(Socket, Opts) -> prim_inet:setopts(Socket, Opts). -spec getopts(Socket, Options) -> - {'ok', [socket_setopt()]} | {'error', posix()} when + {'ok', OptionValues} | {'error', posix()} when Socket :: socket(), - Options :: [socket_getopt()]. + Options :: [socket_getopt()], + OptionValues :: [socket_setopt()]. getopts(Socket, Opts) -> prim_inet:getopts(Socket, Opts). @@ -419,14 +341,19 @@ gethostname() -> gethostname(Socket) -> prim_inet:gethostname(Socket). --spec getstat(Socket :: socket()) -> - {'ok', [{stat_option(), integer()}]} | {'error', posix()}. +-spec getstat(Socket) -> + {ok, OptionValues} | {error, posix()} when + Socket :: socket(), + OptionValues :: [{stat_option(), integer()}]. getstat(Socket) -> prim_inet:getstat(Socket, stats()). --spec getstat(Socket :: socket(), Statoptions :: [stat_option()]) -> - {'ok', [{stat_option(), integer()}]} | {'error', posix()}. +-spec getstat(Socket, Options) -> + {ok, OptionValues} | {error, posix()} when + Socket :: socket(), + Options :: [stat_option()], + OptionValues :: [{stat_option(), integer()}]. getstat(Socket,What) -> prim_inet:getstat(Socket, What). @@ -441,14 +368,14 @@ gethostbyname(Name) -> -spec gethostbyname(Hostname, Family) -> {ok, Hostent} | {error, posix()} when Hostname :: hostname(), - Family :: family_option(), + Family :: address_family(), Hostent :: hostent(). gethostbyname(Name,Family) -> gethostbyname_tm(Name, Family, false). -spec gethostbyname(Name :: hostname(), - Family :: family_option(), + Family :: address_family(), Timeout :: non_neg_integer() | 'infinity') -> {'ok', #hostent{}} | {'error', posix()}. @@ -527,14 +454,14 @@ getfd(Socket) -> -spec getaddr(Host, Family) -> {ok, Address} | {error, posix()} when Host :: ip_address() | hostname(), - Family :: family_option(), + Family :: address_family(), Address :: ip_address(). getaddr(Address, Family) -> getaddr(Address, Family, infinity). -spec getaddr(Host :: ip_address() | hostname(), - Family :: family_option(), + Family :: address_family(), Timeout :: non_neg_integer() | 'infinity') -> {'ok', ip_address()} | {'error', posix()}. @@ -553,14 +480,14 @@ getaddr_tm(Address, Family, Timer) -> -spec getaddrs(Host, Family) -> {ok, Addresses} | {error, posix()} when Host :: ip_address() | hostname(), - Family :: family_option(), + Family :: address_family(), Addresses :: [ip_address()]. getaddrs(Address, Family) -> getaddrs(Address, Family, infinity). -spec getaddrs(Host :: ip_address() | string() | atom(), - Family :: family_option(), + Family :: address_family(), Timeout :: non_neg_integer() | 'infinity') -> {'ok', [ip_address()]} | {'error', posix()}. @@ -570,7 +497,7 @@ getaddrs(Address, Family, Timeout) -> stop_timer(Timer), Res. --spec getservbyport(Port :: ip_port(), Protocol :: atom() | string()) -> +-spec getservbyport(Port :: port_number(), Protocol :: atom() | string()) -> {'ok', string()} | {'error', posix()}. getservbyport(Port, Proto) -> @@ -584,7 +511,7 @@ getservbyport(Port, Proto) -> -spec getservbyname(Name :: atom() | string(), Protocol :: atom() | string()) -> - {'ok', ip_port()} | {'error', posix()}. + {'ok', port_number()} | {'error', posix()}. getservbyname(Name, Protocol) when is_atom(Name) -> case inet_udp:open(0, []) of @@ -1067,7 +994,7 @@ gethostbyaddr_tm_native(Addr, Timer, Opts) -> -spec open(Fd :: integer(), Addr :: ip_address(), - Port :: ip_port(), + Port :: port_number(), Opts :: [socket_setopt()], Protocol :: protocol_option(), Family :: 'inet' | 'inet6', @@ -1108,7 +1035,7 @@ open(Fd, _Addr, _Port, Opts, Protocol, Family, Module) -> -spec fdopen(Fd :: non_neg_integer(), Opts :: [socket_setopt()], Protocol :: protocol_option(), - Family :: family_option(), + Family :: address_family(), Module :: atom()) -> {'ok', socket()} | {'error', posix()}. diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl index d1f5644ff7..59ba408d7a 100644 --- a/lib/kernel/src/inet_res.erl +++ b/lib/kernel/src/inet_res.erl @@ -407,7 +407,7 @@ gethostbyname(Name) -> -spec gethostbyname(Name, Family) -> {ok, Hostent} | {error, Reason} when Name :: dns_name(), Hostent :: inet:hostent(), - Family :: inet:family_option(), + Family :: inet:address_family(), Reason :: inet:posix() | res_error(). gethostbyname(Name,Family) -> @@ -418,7 +418,7 @@ gethostbyname(Name,Family) -> Name :: dns_name(), Hostent :: inet:hostent(), Timeout :: timeout(), - Family :: inet:family_option(), + Family :: inet:address_family(), Reason :: inet:posix() | res_error(). gethostbyname(Name,Family,Timeout) -> -- cgit v1.2.3