Sockets API
+<!-- ##### SECTION ./tmpl/comm_callbacks.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_callbacks.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_callbacks.sgml:Short_Description ##### -->
+
+
+
+<!-- ##### SECTION ./tmpl/comm_callbacks.sgml:Title ##### -->
+comm_callbacks
+
+
+<!-- ##### SECTION ./tmpl/comm_cb.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_cb.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_cb.sgml:Short_Description ##### -->
+
+
+
+<!-- ##### SECTION ./tmpl/comm_cb.sgml:Title ##### -->
+comm_cb
+
+
+<!-- ##### SECTION ./tmpl/comm_datadesc_expert.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_datadesc_expert.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/comm_datadesc_expert.sgml:Short_Description ##### -->
+Advanced ways to describe data (for experts)
+
+
+<!-- ##### SECTION ./tmpl/comm_datadesc_expert.sgml:Title ##### -->
+Advanced Data description
+
+
<!-- ##### SECTION ./tmpl/comm_dd_cbps.sgml:Long_Description ##### -->
<para>
Data description callbacks persistant state
+<!-- ##### SECTION ./tmpl/dd_internal.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/dd_internal.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/dd_internal.sgml:Short_Description ##### -->
+
+
+
+<!-- ##### SECTION ./tmpl/dd_internal.sgml:Title ##### -->
+Implementation of data description
+
+
<!-- ##### SECTION ./tmpl/dico.sgml:Long_Description ##### -->
<para>
gras
+<!-- ##### SECTION ./tmpl/gras_private.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/gras_private.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/gras_private.sgml:Short_Description ##### -->
+
+
+
+<!-- ##### SECTION ./tmpl/gras_private.sgml:Title ##### -->
+gras_private
+
+
+<!-- ##### SECTION ./tmpl/gras_rl.sgml:Long_Description ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/gras_rl.sgml:See_Also ##### -->
+<para>
+
+</para>
+
+
+<!-- ##### SECTION ./tmpl/gras_rl.sgml:Short_Description ##### -->
+Implementation of GRAS suited for real life.
+
+
+<!-- ##### SECTION ./tmpl/gras_rl.sgml:Title ##### -->
+RL
+
+
+<!-- ##### SECTION ./tmpl/gras_sg.sgml:Long_Description ##### -->
+<para>
+ SimGrid was designed to ease the comparison of algorithms and
+ heuristics. That way, a lot of complicated notion from the system layer
+ were volontary left off. For example, migrating a process from an host to
+ another is as easy as: MSG_process_change_host(process, new_host).
+</para>
+
+<para>
+ No need to tell that performing this operation on real platform is really
+ harder. This simplification is a very good thing when you want to rapidly
+ prototype code, but makes things somehow more complicated in GRAS since
+ we want to have a realistic API, since it have to be implemented in
+ reality also.
+</para>
+
+<para>
+ The best example of complexity in GRAS_SG induced by simplicity in
+ SimGrid is the sockets handling. There is no "socket" in SG, but only
+ m_channel_t. In contrary to sockets from RL, no special treatment is
+ needed for a process before writing or reading on/from a channel. So, a
+ given channel can be pooled by more than one process. Likewise, you can
+ send data to a channel that nobody is actually listening to.
+</para>
+
+<para>
+ The SG implementation of GRAS repport as an error the fact that nobody is
+ listening to the socket when trying to open a socket, or send stuff using
+ a previously openned socket. That way, the SG version can be used to
+ debug all syncronization issues. For that, we store mainly the PID of
+ both the sender and the receiver in the socket structure, and then
+ resolve PID->process at the lastest moment. This search is a bit
+ expensive, but as long as there is no real garbage collection in SG, with
+ the information "dead process" within the structure, it's the only
+ solution to make sure that we won't dereference pointers to an old freed
+ structure when the process on the other side of the structure did finish
+ since the creation of the socket.
+</para>
+
+<para>
+ As said in the overview, the processes can declare to hear on several
+ sockets, but all incoming messages are handled by the same loop. So, we
+ can use only one channel per process, and use a table on each host to
+ determine to which process a message should be delivered depending on the
+ socket number provided by the sender.
+</para>
+
+
+<!-- ##### SECTION ./tmpl/gras_sg.sgml:See_Also ##### -->
+<para>
+RL, the implementation suited for real life.
+</para>
+
+<!--
+Local variables:
+sgml-parent-document:\.\./gras-docs\.sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-namecase-general:t
+sgml-general-insert-case:lower
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:2
+sgml-indent-data:nil
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+-->
+
+
+<!-- ##### SECTION ./tmpl/gras_sg.sgml:Short_Description ##### -->
+Implementation of GRAS on top of the simulator.
+
+
+<!-- ##### SECTION ./tmpl/gras_sg.sgml:Title ##### -->
+SG
+
+
<!-- ##### SECTION ./tmpl/nws_comm.sgml:Long_Description ##### -->
<para>
@a4:
@a5:
+<!-- ##### MACRO CWARNING6 ##### -->
+<para>
+
+</para>
+
+@c:
+@f:
+@a1:
+@a2:
+@a3:
+@a4:
+@a5:
+@a6:
+
<!-- ##### FUNCTION CallAddr ##### -->
<para>
@waitForPeer:
@Returns:
+<!-- ##### FUNCTION ConvertData ##### -->
+<para>
+
+</para>
+
+@destination:
+@source:
+@description:
+@length:
+@sourceFormat:
+
<!-- ##### FUNCTION CreateLocalChild ##### -->
<para>
@STRUCT_TYPE:
@LAST_TYPE:
+<!-- ##### FUNCTION DifferentFormat ##### -->
+<para>
+
+</para>
+
+@whatType:
+@Returns:
+
+<!-- ##### FUNCTION DifferentOrder ##### -->
+<para>
+
+</para>
+
+@Returns:
+
+<!-- ##### FUNCTION DifferentSize ##### -->
+<para>
+
+</para>
+
+@whatType:
+@Returns:
+
<!-- ##### MACRO END_DECL ##### -->
<para>
</para>
+<!-- ##### FUNCTION HomogenousConvertData ##### -->
+<para>
+
+</para>
+
+@destination:
+@source:
+@whatType:
+@repetitions:
+@sourceFormat:
+
+<!-- ##### FUNCTION HomogenousDataSize ##### -->
+<para>
+
+</para>
+
+@whatType:
+@repetitions:
+@format:
+@Returns:
+
<!-- ##### TYPEDEF IPAddress ##### -->
<para>
@sd:
@Returns:
+<!-- ##### FUNCTION ReverseData ##### -->
+<para>
+
+</para>
+
+@destination:
+@source:
+@whatType:
+@repetitions:
+@format:
+
<!-- ##### MACRO SIMPLE_DATA ##### -->
<para>
@repetitions:
@offset:
+<!-- ##### MACRO SIMPLE_TYPE_COUNT ##### -->
+<para>
+
+</para>
+
+
<!-- ##### MACRO STDC_HEADERS ##### -->
<para>
</para>
+<!-- ##### MACRO WARNING6 ##### -->
+<para>
+
+</para>
+
+@f:
+@a1:
+@a2:
+@a3:
+@a4:
+@a5:
+@a6:
+
<!-- ##### USER_FUNCTION grasCallbackFunction ##### -->
<para>
@Varargs:
@Returns:
+<!-- ##### FUNCTION grasMsgRecv ##### -->
+<para>
+
+</para>
+
+@msg:
+@timeout:
+@Returns:
+@sd:
+
<!-- ##### FUNCTION grasMsgRegister ##### -->
<para>
@c:
@data:
+<!-- ##### MACRO gras_datadesc_declare_array ##### -->
+<para>
+
+</para>
+
+@name:
+@elm_type:
+@size:
+@code:
+
+<!-- ##### FUNCTION gras_datadesc_declare_array_cb ##### -->
+<para>
+
+</para>
+
+@name:
+@element_type:
+@fixed_size:
+@dynamic_size:
+@post:
+@code:
+@Returns:
+
+<!-- ##### FUNCTION gras_datadesc_declare_ref_cb ##### -->
+<para>
+
+</para>
+
+@name:
+@referenced_type:
+@discriminant:
+@post:
+@code:
+@Returns:
+
+<!-- ##### MACRO gras_datadesc_declare_ref_disc ##### -->
+<para>
+
+</para>
+
+@name:
+@discriminant:
+@code:
+
+<!-- ##### MACRO gras_datadesc_declare_struct_add_code ##### -->
+<para>
+
+</para>
+
+@struct_code:
+@field_name:
+@field_type_code:
+
+<!-- ##### FUNCTION gras_datadesc_declare_struct_add_code_cb ##### -->
+<para>
+
+</para>
+
+@struct_code:
+@field_name:
+@field_code:
+@pre_cb:
+@post_cb:
+@Returns:
+
+<!-- ##### MACRO gras_datadesc_declare_struct_add_name ##### -->
+<para>
+
+</para>
+
+@struct_code:
+@field_name:
+@field_type_name:
+
+<!-- ##### FUNCTION gras_datadesc_declare_struct_add_name_cb ##### -->
+<para>
+
+</para>
+
+@struct_code:
+@field_name:
+@field_type_name:
+@pre_cb:
+@post_cb:
+@Returns:
+
+<!-- ##### FUNCTION gras_datadesc_declare_struct_cb ##### -->
+<para>
+
+</para>
+
+@name:
+@pre_cb:
+@post_cb:
+@code:
+@Returns:
+
+<!-- ##### MACRO gras_datadesc_declare_union_add_code ##### -->
+<para>
+
+</para>
+
+@union_code:
+@field_name:
+@field_type_code:
+
+<!-- ##### FUNCTION gras_datadesc_declare_union_add_code_cb ##### -->
+<para>
+
+</para>
+
+@union_code:
+@field_name:
+@field_code:
+@pre_cb:
+@post_cb:
+@Returns:
+
+<!-- ##### MACRO gras_datadesc_declare_union_add_name ##### -->
+<para>
+
+</para>
+
+@union_code:
+@field_name:
+@field_type_name:
+
+<!-- ##### FUNCTION gras_datadesc_declare_union_add_name_cb ##### -->
+<para>
+
+</para>
+
+@union_code:
+@field_name:
+@field_type_name:
+@pre_cb:
+@post_cb:
+@Returns:
+
+<!-- ##### FUNCTION gras_datadesc_declare_union_cb ##### -->
+<para>
+
+</para>
+
+@name:
+@field_count:
+@post:
+@code:
+@Returns:
+
+<!-- ##### FUNCTION gras_datadesc_from_nws ##### -->
+<para>
+
+</para>
+
+@name:
+@desc:
+@howmany:
+@code:
+@Returns:
+@dst:
+
+<!-- ##### FUNCTION gras_datadesc_parse ##### -->
+<para>
+
+</para>
+
+@name:
+@Cdefinition:
+@dst:
+@Returns:
+@code:
+@def:
+
+<!-- ##### FUNCTION gras_ddt_free ##### -->
+<para>
+
+</para>
+
+@type:
+
+<!-- ##### FUNCTION gras_ddt_get_by_code ##### -->
+<para>
+
+</para>
+
+@code:
+@type:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_get_by_name ##### -->
+<para>
+
+</para>
+
+@name:
+@type:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_array ##### -->
+<para>
+
+</para>
+
+@name:
+@element_type:
+@fixed_size:
+@dynamic_size:
+@post:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_from_nws ##### -->
+<para>
+
+</para>
+
+@name:
+@desc:
+@howmany:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_ignored ##### -->
+<para>
+
+</para>
+
+@name:
+@default_value:
+@free_func:
+@size:
+@alignment:
+@post:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_parse ##### -->
+<para>
+
+</para>
+
+@name:
+@C_definition:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_ref ##### -->
+<para>
+
+</para>
+
+@name:
+@referenced_type:
+@discriminant:
+@post:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_scalar ##### -->
+<para>
+
+</para>
+
+@name:
+@type:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_struct ##### -->
+<para>
+
+</para>
+
+@name:
+@pre:
+@post:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_struct_append ##### -->
+<para>
+
+</para>
+
+@struct_type:
+@name:
+@field_type:
+@pre:
+@post:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_union ##### -->
+<para>
+
+</para>
+
+@name:
+@field_count:
+@post:
+@dst:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_new_union_append ##### -->
+<para>
+
+</para>
+
+@union_type:
+@name:
+@field_type:
+@pre:
+@post:
+@Returns:
+
+<!-- ##### FUNCTION gras_ddt_register ##### -->
+<para>
+
+</para>
+
+@type:
+@Returns:
+
<!-- ##### FUNCTION gras_dict_cursor_next ##### -->
<para>
@cat:
@thresholdPriority:
+<!-- ##### FUNCTION gras_msg_discard ##### -->
+<para>
+
+</para>
+
+@sd:
+@size:
+
+<!-- ##### FUNCTION gras_msg_free ##### -->
+<para>
+
+</para>
+
+@msg:
+
+<!-- ##### FUNCTION gras_msg_new ##### -->
+<para>
+
+</para>
+
+@msgId:
+@free_data_on_free:
+@seqCount:
+@Varargs:
+@Returns:
+
+<!-- ##### FUNCTION gras_msgtype_register ##### -->
+<para>
+
+</para>
+
+@msgId:
+@name:
+@sequence_count:
+@Varargs:
+@Returns:
+
<!-- ##### FUNCTION gras_sock_client_open ##### -->
<para>
@sock:
@Returns:
-<!-- ##### FUNCTION gras_socket_peer_name ##### -->
-<para>
-
-</para>
-
-@sd:
-@Returns:
-
<!-- ##### FUNCTION gras_unlock ##### -->
<para>
