ides_static (ides v0.4.0)

Summary

Types

intensity_info()

kill_source()

static_error()

static_process()

static_warning()

supervisor_process()

t()

worker_process()

Functions

ancestors/2

Return the ancestor supervisor chain for a module, from root to direct parent.

find_process_by_name/2

Look up a module by its registered process name in the tree.

format/2

Render the supervision tree as indented ASCII, marking the target with *.

intensity_info/2

Return restart intensity policy for a supervisor module.

kill_graph/2

Return all modules that could cause the target module's process to be killed.

print(Module, Trees)

Like format/2 but writes to stdout.

siblings/2

Return sibling modules (other children of the same parent supervisor).

supervisor_tree(BeamPaths)

Build the static supervision tree from BEAM files.Returns tree roots and any warnings (unresolvable modules, dynamic children).

Types

intensity_info()

-type intensity_info() :: #{max_restarts := non_neg_integer(), max_period := non_neg_integer()}.

kill_source()

-type kill_source() :: {ancestor, module()} | {sibling, module()}.

static_error()

-type static_error() ::
          {missing_beam, module()} |
          {no_debug_info, module()} |
          {not_a_supervisor, module()} |
          {dynamic_child_spec, module()} |
          {unresolvable_module, module()}.

static_process()

-type static_process() :: supervisor_process() | worker_process().

static_warning()

-type static_warning() ::
          {unresolvable_module, module()} |
          {dynamic_child_spec, module()} |
          {missing_behaviour, module()}.

supervisor_process()

-type supervisor_process() ::
          #{name := string(),
            module := module(),
            parent := module() | undefined,
            type := supervisor,
            strategy := ides:supervisor_strategy(),
            restart_type => ides:child_restart_type(),
            children := [static_process()],
            intensity := intensity_info()}.

t()

-type t() :: #{tree := [static_process()], warnings := [static_warning()]}.

worker_process()

-type worker_process() ::
          #{name := string(),
            module := module(),
            parent := module() | undefined,
            type := worker,
            restart_type := ides:child_restart_type()}.

Functions

ancestors/2

-spec ancestors(module(), t()) -> {ok, [module()]} | {error, not_found}.

Return the ancestor supervisor chain for a module, from root to direct parent.

find_process_by_name/2

-spec find_process_by_name(string(), t()) -> {ok, module()} | {error, not_found}.

Look up a module by its registered process name in the tree.

format/2

-spec format(module(), t()) -> iolist().

Render the supervision tree as indented ASCII, marking the target with *.

intensity_info/2

-spec intensity_info(module(), t()) -> {ok, intensity_info()} | {error, not_found}.

Return restart intensity policy for a supervisor module.

kill_graph/2

-spec kill_graph(module(), t()) -> {ok, [module()]} | {error, not_found}.

Return all modules that could cause the target module's process to be killed.

print(Module, Trees)

-spec print(module(), t()) -> ok.

Like format/2 but writes to stdout.

siblings/2

-spec siblings(module(), t()) -> {ok, [module()]} | {error, not_found}.

Return sibling modules (other children of the same parent supervisor).

supervisor_tree(BeamPaths)

-spec supervisor_tree([file:filename()]) ->
                         {ok, #{tree := [static_process()], warnings := [static_warning()]}} |
                         {error, static_error()}.

Build the static supervision tree from BEAM files.Returns tree roots and any warnings (unresolvable modules, dynamic children).