ホーム › System.Js › JsGetRuntimeMemoryUsage

JsGetRuntimeMemoryUsage

関数

ランタイムの現在のメモリ使用量を取得する。

DLLchakra.dll呼出規約winapi

シグネチャ

// chakra.dll
#include <windows.h>

JsErrorCode JsGetRuntimeMemoryUsage(
    void* runtime,
    UINT_PTR* memoryUsage
);

パラメーター

名前	型	方向
runtime	void*	in
memoryUsage	UINT_PTR*	out

戻り値の型: JsErrorCode

各言語での呼び出し定義

// chakra.dll
#include <windows.h>

JsErrorCode JsGetRuntimeMemoryUsage(
    void* runtime,
    UINT_PTR* memoryUsage
);

[DllImport("chakra.dll", ExactSpelling = true)]
static extern uint JsGetRuntimeMemoryUsage(
    IntPtr runtime,   // void*
    out UIntPtr memoryUsage   // UINT_PTR* out
);

<DllImport("chakra.dll", ExactSpelling:=True)>
Public Shared Function JsGetRuntimeMemoryUsage(
    runtime As IntPtr,   ' void*
    <Out> ByRef memoryUsage As UIntPtr   ' UINT_PTR* out
) As UInteger
End Function

' runtime : void*
' memoryUsage : UINT_PTR* out
Declare PtrSafe Function JsGetRuntimeMemoryUsage Lib "chakra" ( _
    ByVal runtime As LongPtr, _
    ByRef memoryUsage As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JsGetRuntimeMemoryUsage = ctypes.windll.chakra.JsGetRuntimeMemoryUsage
JsGetRuntimeMemoryUsage.restype = wintypes.DWORD
JsGetRuntimeMemoryUsage.argtypes = [
    ctypes.POINTER(None),  # runtime : void*
    ctypes.POINTER(ctypes.c_size_t),  # memoryUsage : UINT_PTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('chakra.dll')
JsGetRuntimeMemoryUsage = Fiddle::Function.new(
  lib['JsGetRuntimeMemoryUsage'],
  [
    Fiddle::TYPE_VOIDP,  # runtime : void*
    Fiddle::TYPE_VOIDP,  # memoryUsage : UINT_PTR* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "chakra")]
extern "system" {
    fn JsGetRuntimeMemoryUsage(
        runtime: *mut (),  // void*
        memoryUsage: *mut usize  // UINT_PTR* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("chakra.dll")]
public static extern uint JsGetRuntimeMemoryUsage(IntPtr runtime, out UIntPtr memoryUsage);
"@
$api = Add-Type -MemberDefinition $sig -Name 'chakra_JsGetRuntimeMemoryUsage' -Namespace Win32 -PassThru
# $api::JsGetRuntimeMemoryUsage(runtime, memoryUsage)

#uselib "chakra.dll"
#func global JsGetRuntimeMemoryUsage "JsGetRuntimeMemoryUsage" sptr, sptr
; JsGetRuntimeMemoryUsage runtime, varptr(memoryUsage)   ; 戻り値は stat
; runtime : void* -> "sptr"
; memoryUsage : UINT_PTR* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "chakra.dll"
#cfunc global JsGetRuntimeMemoryUsage "JsGetRuntimeMemoryUsage" sptr, var
; res = JsGetRuntimeMemoryUsage(runtime, memoryUsage)
; runtime : void* -> "sptr"
; memoryUsage : UINT_PTR* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "chakra.dll"
#cfunc global JsGetRuntimeMemoryUsage "JsGetRuntimeMemoryUsage" sptr, sptr
; res = JsGetRuntimeMemoryUsage(runtime, varptr(memoryUsage))
; runtime : void* -> "sptr"
; memoryUsage : UINT_PTR* out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; JsErrorCode JsGetRuntimeMemoryUsage(void* runtime, UINT_PTR* memoryUsage)
#uselib "chakra.dll"
#cfunc global JsGetRuntimeMemoryUsage "JsGetRuntimeMemoryUsage" intptr, var
; res = JsGetRuntimeMemoryUsage(runtime, memoryUsage)
; runtime : void* -> "intptr"
; memoryUsage : UINT_PTR* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; JsErrorCode JsGetRuntimeMemoryUsage(void* runtime, UINT_PTR* memoryUsage)
#uselib "chakra.dll"
#cfunc global JsGetRuntimeMemoryUsage "JsGetRuntimeMemoryUsage" intptr, intptr
; res = JsGetRuntimeMemoryUsage(runtime, varptr(memoryUsage))
; runtime : void* -> "intptr"
; memoryUsage : UINT_PTR* out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	chakra = windows.NewLazySystemDLL("chakra.dll")
	procJsGetRuntimeMemoryUsage = chakra.NewProc("JsGetRuntimeMemoryUsage")
)

// runtime (void*), memoryUsage (UINT_PTR* out)
r1, _, err := procJsGetRuntimeMemoryUsage.Call(
	uintptr(runtime),
	uintptr(memoryUsage),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // JsErrorCode

function JsGetRuntimeMemoryUsage(
  runtime: Pointer;   // void*
  memoryUsage: Pointer   // UINT_PTR* out
): DWORD; stdcall;
  external 'chakra.dll' name 'JsGetRuntimeMemoryUsage';

result := DllCall("chakra\JsGetRuntimeMemoryUsage"
    , "Ptr", runtime   ; void*
    , "Ptr", memoryUsage   ; UINT_PTR* out
    , "UInt")   ; return: JsErrorCode

●JsGetRuntimeMemoryUsage(runtime, memoryUsage) = DLL("chakra.dll", "dword JsGetRuntimeMemoryUsage(void*, void*)")
# 呼び出し: JsGetRuntimeMemoryUsage(runtime, memoryUsage)
# runtime : void* -> "void*"
# memoryUsage : UINT_PTR* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。