<?xml version="1.0" encoding="latin1" ?> <!DOCTYPE erlref SYSTEM "erlref.dtd"> <erlref> <header> <copyright> <year>1998</year><year>2009</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> The contents of this file are subject to the Erlang Public License, Version 1.1, (the "License"); you may not use this file except in compliance with the License. You should have received a copy of the Erlang Public License along with this software. If not, it can be retrieved online at http://www.erlang.org/. Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. </legalnotice> <title>i</title> <prepared></prepared> <docno></docno> <date></date> <rev></rev> </header> <module>i</module> <modulesummary>Debugger/Interpreter Interface</modulesummary> <description> <p>The module <c>i</c> provides short forms for some of the functions used by the graphical Debugger and some of the functions in the <c>int</c> module, the Erlang interpreter. </p> <p>This module also provides facilities for displaying status information about interpreted processes and break points.</p> <p>It is possible to attach to interpreted processes by giving the corresponding process identity only. By default, an attachment window pops up. Processes at other Erlang nodes can be attached manually or automatically.</p> <p>By preference, these functions can be included in the module <c>shell_default</c>. By default, they are.</p> </description> <funcs> <func> <name>im() -> pid()</name> <fsummary>Start a graphical monitor</fsummary> <desc> <p>Starts a new graphical monitor. This is the Monitor window, the main window of the Debugger. All of the Debugger and interpreter functionality is accessed from the Monitor window. The Monitor window displays the status of all processes that have been/are executing interpreted modules.</p> </desc> </func> <func> <name>ii(AbsModules) -> ok</name> <name>ii(AbsModule) -> {module, Module} | error</name> <name>ini(AbsModules) -> ok</name> <name>ini(AbsModule) -> {module, Module} | error</name> <fsummary>Interpret a module</fsummary> <type> <v>AbsModules = [AbsModule]</v> <v>AbsModule = Module | File</v> <v> Module = atom()</v> <v> File = string()</v> </type> <desc> <p>Interprets the specified module(s). <c>ii/1</c> interprets the module(s) only at the current node, see <seealso marker="int#i/1">int:i/1</seealso>. <c>ini/1</c> interprets the module(s) at all known nodes, see <seealso marker="int#ni/1">int:ni/1</seealso>.</p> </desc> </func> <func> <name>iq(AbsModule) -> ok</name> <name>inq(AbsModule) -> ok</name> <fsummary>Stop interpreting a module</fsummary> <type> <v>AbsModule = Module | File</v> <v> Module = atom()</v> <v> File = string()</v> </type> <desc> <p>Stops interpreting the specified module. <c>iq/1</c> stops interpreting the module only at the current node. <c>inq/1</c> stops interpreting the module at all known nodes.</p> </desc> </func> <func> <name>il() -> ok</name> <fsummary>Make a printout of all interpreted modules</fsummary> <desc> <p>Makes a printout of all interpreted modules. Modules are printed together with the full path name of the corresponding source code file.</p> </desc> </func> <func> <name>ip() -> ok</name> <fsummary>Make a printout of the current status of all interpreted processes</fsummary> <desc> <p>Makes a printout of the current status of all interpreted processes.</p> </desc> </func> <func> <name>ic() -> ok</name> <fsummary>Clear information about processes executing interpreted code</fsummary> <desc> <p>Clears information about processes executing interpreted code byt removing all information about terminated processes.</p> </desc> </func> <func> <name>iaa(Flags) -> true</name> <name>iaa(Flags, Function) -> true</name> <fsummary>Set when and how to attach to a process</fsummary> <type> <v>Flags = [init | break | exit]</v> <v>Function = {Module,Name,Args}</v> <v> Module = Name = atom()</v> <v> Args = [term()]</v> </type> <desc> <p>Sets when and how to automatically attach to a debugged process, see <seealso marker="int#auto_attach/0">int:auto_attach/2</seealso>. <c>Function</c> defaults to the standard function used by the Debugger.</p> </desc> </func> <func> <name>ist(Flag) -> true</name> <fsummary>Set how to save call frames</fsummary> <type> <v>Flag = all | no_tail | false</v> </type> <desc> <p>Sets how to save call frames in the stack, see <seealso marker="int#stack_trace/0">int:stack_trace/1</seealso>. </p> </desc> </func> <func> <name>ia(Pid) -> ok | no_proc</name> <fsummary>Attach to a process</fsummary> <type> <v>Pid = pid()</v> </type> <desc> <p>Attaches to the debugged process <c>Pid</c>. A Debugger Attach Process window is opened for the process.</p> </desc> </func> <func> <name>ia(X,Y,Z) -> ok | no_proc</name> <fsummary>Attach to a process</fsummary> <type> <v>X = Y = Z = int()</v> </type> <desc> <p>Same as <c>ia(Pid)</c>, where <c>Pid</c> is the result of calling the shell function <c>pid(X,Y,Z)</c>.</p> </desc> </func> <func> <name>ia(Pid, Function) -> ok | no_proc</name> <fsummary>Attach to a process</fsummary> <type> <v>Pid = pid()</v> <v>Function = {Module,Name}</v> <v> Module = Name = atom()</v> </type> <desc> <p>Attaches to the debugged process <c>Pid</c>. The interpreter will call <c>spawn(Module, Name, [Pid])</c> (and ignore the result).</p> </desc> </func> <func> <name>ia(X,Y,Z, Function) -> ok | no_proc</name> <fsummary>Attach to a process</fsummary> <type> <v>X = Y = Z = int()</v> <v>Function = {Module,Name}</v> <v> Module = Name = atom()</v> </type> <desc> <p>Same as <c>ia(Pid, Function)</c>, where <c>Pid</c> is the result of calling the shell function <c>pid(X,Y,Z)</c>. An attached process is expected to call the unofficial <c>int:attached(Pid)</c> function and to be able to handle messages from the interpreter, see <c>dbg_ui_trace.erl</c> for an example.</p> </desc> </func> <func> <name>ib(Module, Line) -> ok | {error, break_exists}</name> <fsummary>Create a breakpoint</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> </type> <desc> <p>Creates a breakpoint at <c>Line</c> in <c>Module</c>.</p> </desc> </func> <func> <name>ib(Module, Name, Arity) -> ok | {error, function_not_found} </name> <fsummary>Create breakpoints in the specified function</fsummary> <type> <v>Module = Name = atom()</v> <v>Arity = int()</v> </type> <desc> <p>Creates breakpoints at the first line of every clause of the <c>Module:Name/Arity</c> function.</p> </desc> </func> <func> <name>ir() -> ok</name> <fsummary>Delete all breakpoints</fsummary> <desc> <p>Deletes all breakpoints.</p> </desc> </func> <func> <name>ir(Module) -> ok</name> <fsummary>Delete all breakpoints in a module</fsummary> <type> <v>Module = atom()</v> </type> <desc> <p>Deletes all breakpoints in <c>Module</c>.</p> </desc> </func> <func> <name>ir(Module, Line) -> ok</name> <fsummary>Delete a breakpoint</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> </type> <desc> <p>Deletes the breakpoint located at <c>Line</c> in <c>Module</c>.</p> </desc> </func> <func> <name>ir(Module, Name, Arity) -> ok | {error, function_not_found} </name> <fsummary>Delete breakpoints from the specified function </fsummary> <type> <v>Module = Name = atom()</v> <v>Arity = int()</v> </type> <desc> <p>Deletes the breakpoints at the first line of every clause of the <c>Module:Name/Arity</c> function.</p> </desc> </func> <func> <name>ibd(Module, Line) -> ok</name> <fsummary>Make a breakpoint inactive</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> </type> <desc> <p>Makes the breakpoint at <c>Line</c> in <c>Module</c> inactive.</p> </desc> </func> <func> <name>ibe(Module, Line) -> ok</name> <fsummary>Make a breakpoint active</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> </type> <desc> <p>Makes the breakpoint at <c>Line</c> in <c>Module</c> active. </p> </desc> </func> <func> <name>iba(Module, Line, Action) -> ok</name> <fsummary>Set the trigger action of a breakpoint</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> <v>Action = enable | disable | delete</v> </type> <desc> <p>Sets the trigger action of the breakpoint at <c>Line</c> in <c>Module</c> to <c>Action</c>.</p> </desc> </func> <func> <name>ibc(Module, Line, Function) -> ok</name> <fsummary>Set the conditional test of a breakpoint</fsummary> <type> <v>Module = atom()</v> <v>Line = int()</v> <v>Function = {Module,Name}</v> <v> Name = atom()</v> </type> <desc> <p>Sets the conditional test of the breakpoint at <c>Line</c> in <c>Module</c> to <c>Function</c>.</p> <p>The conditional test is performed by calling <c>Module:Name(Bindings)</c>, where <c>Bindings</c> is the current variable bindings. The function must return <c>true</c> (break) or <c>false</c> (do not break). Use <c>int:get_binding(Var, Bindings)</c> to retrieve the value of a variable <c>Var</c>.</p> </desc> </func> <func> <name>ipb() -> ok</name> <fsummary>Make a printout of all existing breakpoints</fsummary> <desc> <p>Makes a printout of all existing breakpoints.</p> </desc> </func> <func> <name>ipb(Module) -> ok</name> <fsummary>Make a printout of all breakpoints in a module </fsummary> <type> <v>Module = atom()</v> </type> <desc> <p>Makes a printout of all existing breakpoints in <c>Module</c>.</p> </desc> </func> <func> <name>iv() -> atom()</name> <fsummary>Current version number of the interpreter</fsummary> <desc> <p>Returns the current version number of the interpreter. The same as the version number of the Debugger application. </p> </desc> </func> <func> <name>help() -> ok</name> <fsummary>Print help text</fsummary> <desc> <p>Prints help text.</p> </desc> </func> </funcs> <section> <title>Usage</title> <p>Refer to the Debugger User's Guide for information about the Debugger.</p> </section> <section> <title>See Also</title> <p><c>int(3)</c></p> </section> </erlref>