View Source i (debugger v5.4)
Debugger/Interpreter Interface.
The i
module provides short forms for some of the functions used by the
graphical Debugger and some of the functions in module int
, the Erlang
interpreter.
This module also provides facilities for displaying status information about interpreted processes and break points.
It is possible to attach to interpreted processes by only giving the corresponding process identity. By default, an attachment window is displayed. Processes at other Erlang nodes can be attached manually or automatically.
The functions in this module are defined in the Erlang shell. That is,
they can be called without the i:
prefix. For example:
1> ii(t).
{module,t}
2> iaa([init]).
true
Summary
Functions
Prints help for using the functions in this module.
Attaches to the debugged process Pid
.
Attaches to the debugged process Pid
.
Equivalent to ia(Pid)
, where Pid
is the result of calling the shell
function pid(X, Y, Z)
.
Equivalent to ia(Pid, Function)
, where Pid
is the result of calling the
shell function pid(X, Y, Z)
.
Sets when to attach to a debugged process automatically.
Sets when and how to attach to a debugged process automatically.
Creates a breakpoint at Line
in Module
.
Creates breakpoints at the first line of every clause of function
Module:Name/Arity
.
Sets the trigger action of the breakpoint at Line
in Module
to Action
.
Sets the conditional test of the breakpoint at Line
in Module
to Function
.
Makes the breakpoint at Line
in Module
inactive.
Makes the breakpoint at Line
in Module
active.
Clears information about processes executing interpreted code by removing all information about terminated processes.
Interprets the specified module(s) on the local node.
Makes a printout of all interpreted modules.
Starts a new graphical Monitor window.
Interprets the specified module(s) on all known nodes.
Stops interpreting the specified module on all known nodes.
Prints the current status of all interpreted processes.
Prints all existing breakpoints.
Prints all existing breakpoints in Module
.
Stops interpreting the specified module on the local node.
Deletes all breakpoints in all interpreted modules.
Deletes all breakpoints in Module
.
Deletes the breakpoint at Line
in Module
.
Deletes the breakpoints at the first line of every clause of function
Module:Name/Arity
.
Sets how to save call frames in the stack.
Returns the current version of the interpreter (Debugger).
Functions
-spec help() -> ok.
Prints help for using the functions in this module.
-spec ia(Pid) -> ok | no_proc when Pid :: pid().
Attaches to the debugged process Pid
.
An "Attach Process" window is opened for the process.
-spec ia(Pid, Function) -> ok | no_proc when Pid :: pid(), Function :: {Module, Name}, Module :: module(), Name :: atom().
Attaches to the debugged process Pid
.
The interpreter calls spawn(Module, Name, [Pid])
(and
ignores the result).
Equivalent to ia(Pid)
, where Pid
is the result of calling the shell
function pid(X, Y, Z)
.
-spec ia(X, Y, Z, Function) -> ok | no_proc when X :: integer(), Y :: integer(), Z :: integer(), Function :: {Module, Name}, Module :: module(), Name :: atom().
Equivalent to ia(Pid, Function)
, where Pid
is the result of calling the
shell function pid(X, Y, Z)
.
An attached process is expected to call the unofficial function
int:attached(Pid)
and to be able to handle messages from the
interpreter. For an example, see dbg_wx_trace.erl
.
-spec iaa(Flags) -> true when Flags :: [init | break | exit].
Sets when to attach to a debugged process automatically.
Debugger supplies a function that opens "Attach Process" window for the process.
See int:auto_attach/2 for more information.
-spec iaa(Flags, Function) -> true when Flags :: [init | break | exit], Function :: {Module, Name, Args}, Module :: module(), Name :: atom(), Args :: [term()].
Sets when and how to attach to a debugged process automatically.
See int:auto_attach/2 for more information.
Creates a breakpoint at Line
in Module
.
-spec ib(Module, Name, Arity) -> ok | {error, function_not_found} when Module :: module(), Name :: atom(), Arity :: integer().
Creates breakpoints at the first line of every clause of function
Module:Name/Arity
.
-spec iba(Module, Line, Action) -> ok when Module :: module(), Line :: integer(), Action :: enable | disable | delete.
Sets the trigger action of the breakpoint at Line
in Module
to Action
.
-spec ibc(Module, Line, Function) -> ok when Module :: module(), Line :: integer(), Function :: {Module, Name}, Name :: atom().
Sets the conditional test of the breakpoint at Line
in Module
to Function
.
The conditional test is performed by calling Module:Name(Bindings)
, where
Bindings
is the current variable bindings. The function must return true
(break) or false
(do not break). To retrieve the value of a variable Var
use int:get_binding(Var, Bindings).
Makes the breakpoint at Line
in Module
inactive.
Makes the breakpoint at Line
in Module
active.
-spec ic() -> ok.
Clears information about processes executing interpreted code by removing all information about terminated processes.
-spec ii(AbsModule) -> {module, Module} | error when AbsModule :: Module | File, Module :: module(), File :: file:name_all(); (AbsModules) -> ok when AbsModules :: [AbsModule], AbsModule :: Module | File, Module :: module(), File :: file:name_all().
Interprets the specified module(s) on the local node.
See int:i/1
for more information.
-spec il() -> ok.
Makes a printout of all interpreted modules.
Modules are printed together with the full path name of the corresponding source code file.
-spec im() -> pid().
Starts a new graphical Monitor window.
This is the Monitor window, the main window of Debugger. All the Debugger and interpreter functionality is accessed from the Monitor window. This window displays the status of all processes that have been or are executing interpreted modules.
-spec ini(AbsModules) -> ok when AbsModules :: [AbsModule], AbsModule :: Module | File, Module :: module(), File :: file:name_all(); (AbsModule) -> {module, Module} | error when AbsModule :: Module | File, Module :: module(), File :: file:name_all().
Interprets the specified module(s) on all known nodes.
See int:ni/1
for more information.
-spec inq(AbsModule) -> ok when AbsModule :: Module | File, Module :: module(), File :: file:name_all().
Stops interpreting the specified module on all known nodes.
-spec ip() -> ok.
Prints the current status of all interpreted processes.
-spec ipb() -> ok.
Prints all existing breakpoints.
-spec ipb(Module) -> ok when Module :: module().
Prints all existing breakpoints in Module
.
-spec iq(AbsModule) -> ok when AbsModule :: Module | File, Module :: module(), File :: file:name_all().
Stops interpreting the specified module on the local node.
-spec ir() -> ok.
Deletes all breakpoints in all interpreted modules.
-spec ir(Module) -> ok when Module :: module().
Deletes all breakpoints in Module
.
Deletes the breakpoint at Line
in Module
.
-spec ir(Module, Name, Arity) -> ok | {error, function_not_found} when Module :: module(), Name :: atom(), Arity :: integer().
Deletes the breakpoints at the first line of every clause of function
Module:Name/Arity
.
-spec ist(Flag) -> true when Flag :: all | no_tail | false.
Sets how to save call frames in the stack.
See int:stack_trace/1 for more information.
-spec iv() -> atom().
Returns the current version of the interpreter (Debugger).