STDLIB(7) Erlang Application Definition STDLIB(7)NAME
STDLIB - The STDLIB Application
DESCRIPTION
The STDLIB is mandatory in the sense that the minimal system based on Erlang/OTP consists of Kernel and STDLIB. The STDLIB application con-
tains no services.
CONFIGURATION
The following configuration parameters are defined for the STDLIB application. See app(5) for more information about configuration parame-
ters.
shell_esc = icl | abort :
This parameter can be used to alter the behaviour of the Erlang shell when ^G is pressed.
restricted_shell = module() :
This parameter can be used to run the Erlang shell in restricted mode.
shell_catch_exception = bool() :
This parameter can be used to set the exception handling of the Erlang shell's evaluator process.
shell_history_length = integer() >= 0 :
This parameter can be used to determine how many commands are saved by the Erlang shell.
shell_prompt_func = {Mod, Func} | default :
where
* Mod = atom()
* Func = atom()
This parameter can be used to set a customized Erlang shell prompt function.
shell_saved_results = integer() >= 0 :
This parameter can be used to determine how many results are saved by the Erlang shell.
SEE ALSO app(5) , application(3erl) , shell(3erl) ,
Ericsson AB stdlib 1.17.3 STDLIB(7)
Check Out this Related Man Page
webtool(3erl) Erlang Module Definition webtool(3erl)NAME
webtool - WebTool is a tool used to simplify the implementation of web based tools with Erlang/OTP.
DESCRIPTION
WebTool makes it easy to use web based tools with Erlang/OTP. WebTool configures and starts the webserver httpd.
EXPORTS
start()-> {ok,Pid}| {stop,Reason}
Start WebTool with default data, i.e. port 8888, ip-number 127.0.0.1, and server-name localhost . If port 8888 is in use, port 8889
is tried instead. If 8889 is also in use, 8890 is tried and so on. Max number of ports tried is 256.
The mime.types file and WebTool's own HTML files are assumed to be in the directory webtool-<vsn>/priv/root/conf .
start(Path,Data)->{ok,Pid}|{stop,Reason}
Types Path = string() | standard_path
Data = [Port,Address,Name] | PortNumber | standard_data
Port = {port,PortNumber}
Address = {bind_address,IpNumber}
Name = {server_name,ServerName}
PortNumber = integer()
IpNumber = tuple(), e.g. {127,0,0,1}
ServerName = string()
Pid = pid()
Use this function to start WebTool if the default port, ip-number,servername or path can not be used.
Path is the directory where the mime.types file and WebTool's own HTML files are located. By default this is webtool-<vsn>/priv ,
and in most cases there is no need to change this. If Path is set to standard_path the default will be used.
If Data is set to PortNumber , the default data will be used for ip-number ( 127.0.0.1 ) and server name ( localhost ).
stop()->void
Stop WebTool and the tools started by WebTool.
debug_app(Module)->void
Types Module = atom()
Debug a WebTool application by tracing all functions in the given module which are called from WebTool.
stop_debug()->void
Stop the tracing started by debug_app/1 , and format the trace log.
CALLBACK FUNCTIONS
The following callback function must be implemented by each web based tool that will be used via WebTool. When started, WebTool searches
the Erlang code path for *.tool files to locate all web based tools and their callback functions. See the WebTool User's Guide for more
information about the *.tool files.
EXPORTS
Module:Func(Data)-> {Name,WebData}|error
Types Data = term()
Name = atom()
WebData = [WebOptions]
WebOptions = LinkData | Alias | Start
LinkData = {web_data,{ToolName,Url}}
Alias = {alias,{VirtualPath,RealPath}} | {alias,{erl_alias,Path,[Modules]}
Start = {start,StartData}
ToolName = Url = VirtualPath = RealPath = Path = string()
Modules = atom()
StartData = AppData | ChildSpec | Func
AppData = {app,AppName}
ChildSpec = {child,child_spec()}
See the Reference Manual for the module supervisor in the STDLIB application for details about child_spec().
Func = {func,{StartMod,StartFunc,StartArg}, {StopMod,StopFunc,StopArg}}
AppName = StartMod = StartFunc = StopMod = StopFunc =atom()
StartArg = StopArg = [term()]
This is the configuration function ( config_func ) which must be stated in the *.tool file.
The function is called by WebTool at startup to retrieve the data needed to start and configure the tool. LinkData is used by
WebTool to create the link to the tool. Alias is used to create the aliases needed by the webserver. Start is used to start and stop
the tool.
SEE ALSO start_webtool(1) , WebTool User's Guide
Ericsson AB webtool 0.8.7 webtool(3erl)