module memory_logger

nitc :: memory_logger

Extension to inject memory-tracing instrumentation in code generated by nitc.

Redefined classes

redef abstract class AbstractCompiler

nitc :: memory_logger $ AbstractCompiler

Singleton that store the knowledge about the compilation process
redef abstract class AbstractCompilerVisitor

nitc :: memory_logger $ AbstractCompilerVisitor

A visitor on the AST of property definition that generate the C code.
redef class ToolContext

nitc :: memory_logger $ ToolContext

Global context for tools

All class definitions

redef abstract class AbstractCompiler

nitc :: memory_logger $ AbstractCompiler

Singleton that store the knowledge about the compilation process
redef abstract class AbstractCompilerVisitor

nitc :: memory_logger $ AbstractCompilerVisitor

A visitor on the AST of property definition that generate the C code.
redef class ToolContext

nitc :: memory_logger $ ToolContext

Global context for tools
package_diagram nitc::memory_logger memory_logger nitc::abstract_compiler abstract_compiler nitc::memory_logger->nitc::abstract_compiler nitc\>platform\> platform nitc::abstract_compiler->nitc\>platform\> nitc::mixin mixin nitc::abstract_compiler->nitc::mixin counter counter nitc::abstract_compiler->counter nitc::pkgconfig pkgconfig nitc::abstract_compiler->nitc::pkgconfig ...nitc\>platform\> ... ...nitc\>platform\>->nitc\>platform\> ...nitc::mixin ... ...nitc::mixin->nitc::mixin ...counter ... ...counter->counter ...nitc::pkgconfig ... ...nitc::pkgconfig->nitc::pkgconfig nitc::compiler compiler nitc::compiler->nitc::memory_logger nitc::nitc nitc nitc::nitc->nitc::compiler nitc::nitc... ... nitc::nitc...->nitc::nitc

Ancestors

module abstract_collection

core :: abstract_collection

Abstract collection classes and services.
module abstract_text

core :: abstract_text

Abstract class for manipulation of sequences of characters
module annotation

nitc :: annotation

Management and utilities on annotations
module array

core :: array

This module introduces the standard array structure.
module auto_super_init

nitc :: auto_super_init

Computing of super-constructors that must be implicitly called at the begin of constructors.
module bitset

core :: bitset

Services to handle BitSet
module bytes

core :: bytes

Services for byte streams and arrays
module c

nitc :: c

Support for nesting C code within a Nit program using its FFI
module c_tools

nitc :: c_tools

provides tools to write C .c and .h files
module caching

serialization :: caching

Services for caching serialization engines
module circular_array

core :: circular_array

Efficient data structure to access both end of the sequence.
module codec_base

core :: codec_base

Base for codecs to use with streams
module codecs

core :: codecs

Group module for all codec-related manipulations
module collection

core :: collection

This module define several collection classes.
module console

console :: console

Defines some ANSI Terminal Control Escape Sequences.
module core

core :: core

Standard classes and methods used by default by Nit programs and libraries.
module counter

counter :: counter

Simple numerical statistical analysis and presentation
module csv

csv :: csv

CSV document handling.
module digraph

graph :: digraph

Implementation of directed graphs, also called digraphs.
module engine_tools

serialization :: engine_tools

Advanced services for serialization engines
module environ

core :: environ

Access to the environment variables of the process
module error

core :: error

Standard error-management infrastructure.
module exec

core :: exec

Invocation and management of operating system sub-processes.
module explain_assert_api

nitc :: explain_assert_api

Explain failed assert to the console (service declaration only)
module ffi_base

nitc :: ffi_base

Tools and utilities for implement FFI with different languages
module file

core :: file

File manipulations (create, read, write, etc.)
module fixed_ints

core :: fixed_ints

Basic integers of fixed-precision
module fixed_ints_text

core :: fixed_ints_text

Text services to complement fixed_ints
module flat

core :: flat

All the array-based text representations
module flow

nitc :: flow

Intraprocedural static flow.
module gc

core :: gc

Access to the Nit internal garbage collection mechanism
module hash_collection

core :: hash_collection

Introduce HashMap and HashSet.
module ini

ini :: ini

Read and write INI configuration files
module inspect

serialization :: inspect

Refine Serializable::inspect to show more useful information
module iso8859_1

core :: iso8859_1

Codec for ISO8859-1 I/O
module kernel

core :: kernel

Most basic classes and methods.
module lexer

nitc :: lexer

Lexer and its tokens.
module lexer_work

nitc :: lexer_work

Internal algorithm and data structures for the Nit lexer
module light_c

nitc :: light_c

Support for nesting C code within a Nit program using its FFI
module light_ffi_base

nitc :: light_ffi_base

Tools and utilities for implement FFI with different languages
module list

core :: list

This module handle double linked lists
module literal

nitc :: literal

Parsing of literal values in the abstract syntax tree.
module loader

nitc :: loader

Loading of Nit source files
module local_var_init

nitc :: local_var_init

Verify that local variables are initialized before their usage
module location

nitc :: location

Nit source-file and locations in source-file
module math

core :: math

Mathematical operations
module mdoc

nitc :: mdoc

Documentation of model entities
module meta

meta :: meta

Simple user-defined meta-level to manipulate types of instances as object.
module mixin

nitc :: mixin

Loading and additional module refinements at link-time.
module mmodule

nitc :: mmodule

modules and module hierarchies in the metamodel
module mmodule_data

nitc :: mmodule_data

Define and retrieve data in modules
module model

nitc :: model

Classes, types and properties
module model_base

nitc :: model_base

The abstract concept of model and related common things
module modelbuilder_base

nitc :: modelbuilder_base

Load nit source files and build the associated model
module modelize

nitc :: modelize

Create a model from nit source files
module modelize_class

nitc :: modelize_class

Analysis and verification of class definitions to instantiate model element
module modelize_property

nitc :: modelize_property

Analysis and verification of property definitions to instantiate model element
module more_collections

more_collections :: more_collections

Highly specific, but useful, collections-related classes.
module mpackage

nitc :: mpackage

Modelisation of a Nit package
module native

core :: native

Native structures for text and bytes
module nitni

nitc :: nitni

Native interface related services (used underneath the FFI)
module nitni_base

nitc :: nitni_base

Native interface related services (used underneath the FFI)
module nitni_callbacks

nitc :: nitni_callbacks

nitni services related to callbacks (used underneath the FFI)
module nitpm_shared

nitc :: nitpm_shared

Services related to the Nit package manager
module numeric

core :: numeric

Advanced services for Numeric types
module opts

opts :: opts

Management of options on the command line
module ordered_tree

ordered_tree :: ordered_tree

Manipulation and presentation of ordered trees.
module parser

nitc :: parser

Parser.
module parser_nodes

nitc :: parser_nodes

AST nodes of the Nit language
module parser_prod

nitc :: parser_prod

Production AST nodes full definition.
module parser_util

nitc :: parser_util

Utils and tools related to parsers and AST
module parser_work

nitc :: parser_work

Internal algorithm and data structures for the Nit parser
module phase

nitc :: phase

Phases of the processing of nit programs
module pkgconfig

nitc :: pkgconfig

Offers the PkgconfigPhase to use the external program "pkg-config" in order
module platform

nitc :: platform

Platform system, used to customize the behavior of the compiler.
module poset

poset :: poset

Pre order sets and partial order set (ie hierarchies)
module protocol

core :: protocol

module queue

core :: queue

Queuing data structures and wrappers
module range

core :: range

Module for range of discrete objects.
module rapid_type_analysis

nitc :: rapid_type_analysis

Rapid type analysis on the AST
module re

core :: re

Regular expression support for all services based on Pattern
module ropes

core :: ropes

Tree-based representation of a String.
module scope

nitc :: scope

Identification and scoping of local variables and labels.
module semantize

nitc :: semantize

Process bodies of methods in regard with the model.
module serialization

serialization :: serialization

General serialization services
module serialization_core

serialization :: serialization_core

Abstract services to serialize Nit objects to different formats
module sorter

core :: sorter

This module contains classes used to compare things and sorts arrays.
module stream

core :: stream

Input and output streams of characters
module tables

nitc :: tables

Module that interfaces the parsing tables.
module template

template :: template

Basic template system
module text

core :: text

All the classes and methods related to the manipulation of text entities
module time

core :: time

Management of time and dates
module toolcontext

nitc :: toolcontext

Common command-line tool infrastructure than handle options and error messages
module typing

nitc :: typing

Intraprocedural resolution of static types and OO-services
module union_find

core :: union_find

union–find algorithm using an efficient disjoint-set data structure
module utf8

core :: utf8

Codec for UTF-8 I/O
module version

nitc :: version

This file was generated by git-gen-version.sh

Parents

module abstract_compiler

nitc :: abstract_compiler

Abstract compiler

Children

module compiler

nitc :: compiler

Compilation to C

Descendants

module a_star-m

a_star-m

module nitc

nitc :: nitc

A Nit compiler 
# Extension to inject memory-tracing instrumentation in code generated by `nitc`.
module memory_logger

import abstract_compiler

redef class ToolContext
	# --trace-memory
	var opt_trace_memory = new OptionBool("Enable dynamic measure of memory usage", "--trace-memory")

	init do
		self.option_context.add_option opt_trace_memory
	end
end

redef class AbstractCompiler
	redef fun compile_before_main(v)
	do
		super

		if not modelbuilder.toolcontext.opt_trace_memory.value then return

		header.add_decl("#include <time.h>")
		header.add_decl("extern FILE *mlog;")
		header.add_decl("extern struct timespec mlog_last;")
		header.add_decl("extern struct timespec mlog_time0;")
		v.add_decl("FILE *mlog;")
		v.add_decl("struct timespec mlog_last;")
		v.add_decl("struct timespec mlog_time0;")
	end

	redef fun compile_begin_main(v)
	do
		super

		if not modelbuilder.toolcontext.opt_trace_memory.value then return

		v.add("mlog = fopen(\"memory.log\", \"w\");")
		v.add("clock_gettime(CLOCK_MONOTONIC, &mlog_time0);")
	end
end

redef class AbstractCompilerVisitor
	redef fun nit_alloc(size, tag)
	do
		if not compiler.modelbuilder.toolcontext.opt_trace_memory.value then return super

		# Log time each 10ms (ie 1e7ns)
		var tw = get_name("mtw")
		add_decl("struct timespec {tw};")
		add("clock_gettime(CLOCK_MONOTONIC, &{tw});")
		add("if(mlog_last.tv_sec < {tw}.tv_sec || mlog_last.tv_nsec + 1e7 < {tw}.tv_nsec) \{")
		add("mlog_last = {tw};")
		add("fprintf(mlog, \"# %f\\n\", 1000.0*{tw}.tv_sec + 1e-6*{tw}.tv_nsec - (1000.0*mlog_time0.tv_sec + 1e-6*mlog_time0.tv_nsec));")
		add("\}")

		# Print size and tag the mlog
		var str = "\"+\\t%d\\t%s\\n\", {size}, \"{tag or else "?"}\""
		add("fprintf(mlog, {str});")

		return super
	end
end
src/compiler/memory_logger.nit:15,1--76,3
Nit tools. Version v0.8-3595-g3f58b4f.