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<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2007</year><year>2016</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
</legalnotice>
<title>inets</title>
<prepared>Ingela Anderton Andin</prepared>
<responsible></responsible>
<docno></docno>
<date></date>
<rev></rev>
</header>
<module>inets</module>
<modulesummary>The Inets services API.</modulesummary>
<description>
<p>This module provides the most basic API to the
clients and servers that are part of the <c>Inets</c> application,
such as start and stop.</p>
<marker id="common_data_types"></marker>
</description>
<section>
<title>DATA TYPES</title>
<p>Type definitions that are used more than once in
this module:</p>
<p><c>service() = ftpc | tftp | httpc | httpd</c></p>
<p><c>property() = atom()</c></p>
<marker id="functions"></marker>
<marker id="services"></marker>
</section>
<funcs>
<func>
<name>services() -> [{Service, Pid}]</name>
<fsummary>Returns a list of currently running services.</fsummary>
<type>
<v>Service = service()</v>
<v>Pid = pid()</v>
</type>
<desc>
<p>Returns a list of currently running services.</p>
<note>
<p>Services started as <c>stand_alone</c> are not listed.</p>
</note>
<marker id="services_info"></marker>
</desc>
</func>
<func>
<name>services_info() -> [{Service, Pid, Info}]</name>
<fsummary>Returns a list of currently running services where
each service is described by an <c>[{Option, Value}]</c>
list.</fsummary>
<type>
<v>Service = service()</v>
<v>Pid = pid()</v>
<v>Info = [{Option, Value}]</v>
<v>Option = property()</v>
<v>Value = term()</v>
</type>
<desc>
<p>Returns a list of currently running services where each
service is described by an <c>[{Option, Value}]</c> list. The
information in the list is specific for each service
and each service has probably its own info
function that gives more details about the service.</p>
<marker id="service_names"></marker>
</desc>
</func>
<func>
<name>service_names() -> [Service] </name>
<fsummary>Returns a list of available service names.</fsummary>
<type>
<v>Service = service()</v>
</type>
<desc>
<p>Returns a list of available service names.</p>
<marker id="start"></marker>
</desc>
</func>
<func>
<name>start() -> </name>
<name>start(Type) -> ok | {error, Reason}</name>
<fsummary>Starts the <c>Inets</c> application.</fsummary>
<type>
<v>Type = permanent | transient | temporary</v>
</type>
<desc>
<p>Starts the <c>Inets</c> application. Default type
is <c>temporary</c>. See also
<seealso marker="kernel:application">application(3)</seealso>.</p>
<marker id="stop"></marker>
</desc>
</func>
<func>
<name>start(Service, ServiceConfig) -> {ok, Pid} | {error, Reason}</name>
<name>start(Service, ServiceConfig, How) -> {ok, Pid} | {error, Reason}</name>
<fsummary>Dynamically starts an <c>Inets</c>
service after the <c>Inets</c> application has been started.</fsummary>
<type>
<v>Service = service()</v>
<v>ServiceConfig = [{Option, Value}]</v>
<v>Option = property()</v>
<v>Value = term()</v>
<v>How = inets | stand_alone - default is inets.</v>
</type>
<desc>
<p>Dynamically starts an <c>Inets</c> service after the <c>Inets</c>
application has been started.</p>
<note>
<p>Dynamically started services are not handled by
application takeover and failover behavior when <c>Inets</c> is
run as a distributed application. Nor are they
automatically restarted when the <c>Inets</c> application is
restarted. As long as the <c>Inets</c> application is operational,
they are supervised and can be soft code upgraded.</p>
<p>A service started as <c>stand_alone</c>, that is, the service
is not started as part of the <c>Inets</c> application,
lose all OTP application benefits, such as soft upgrade.
The <c>stand_alone</c>-service is linked to
the process that started it. Usually some
supervision functionality is still in place and in
some sense the calling process becomes the top
supervisor.</p>
</note>
<marker id="stop2"></marker>
</desc>
</func>
<func>
<name>stop() -> ok </name>
<fsummary>Stops the <c>Inets</c> application.</fsummary>
<desc>
<p>Stops the <c>Inets</c> application. See also
<seealso marker="kernel:application">application(3)</seealso>.</p>
<marker id="start2"></marker>
</desc>
</func>
<func>
<name>stop(Service, Reference) -> ok | {error, Reason} </name>
<fsummary>Stops a started service of the <c>Inets</c> application or takes
down a <c>stand_alone </c>service gracefully.</fsummary>
<type>
<v>Service = service() | stand_alone</v>
<v>Reference = pid() | term() - service-specified reference</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Stops a started service of the <c>Inets</c> application or takes
down a <c>stand_alone</c>-service gracefully. When option
<c>stand_alone</c> is used in start,
only the pid is a valid argument to stop.</p>
<marker id="see_also"></marker>
</desc>
</func>
</funcs>
<section>
<title>SEE ALSO</title>
<p><seealso marker="httpc">httpc(3)</seealso>,
<seealso marker="httpd">httpd(3)</seealso>
</p>
</section>
</erlref>
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