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J'essaie d'utiliser l'une des nouvelles fonctionnalités - bibliothèque d'agents asynchrones. Je viens d'ajouter ununbounded_buffer, _CrtSetDbgFlag et les fuites de mémoire
unbounded_buffer m_myDataBuffer; à ma classe C++, rien de plus - aucun agent en cours d'exécution.
Pour activer la détection des fuites de mémoire dans mon application, je me sers:
#ifdef _DEBUG
_CrtSetDbgFlag (_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif
Mais après avoir fermé ma fenêtre d'application (je me sers application simple GUI Win 32) Visual Studio montre un tas de fuites de mémoire:
Detected memory leaks!
Dumping objects ->
{261} normal block at 0x007C4EB8, 288 bytes long.
Data: < 5 > 00 00 02 00 02 00 00 00 10 02 00 00 10 B1 35 00
{260} normal block at 0x007C4E70, 12 bytes long.
Data: < HM| > 00 00 00 00 00 02 00 00 48 4D 7C 00
{259} normal block at 0x007C4E18, 28 bytes long.
Data: < > 00 00 00 00 CD CD CD CD 00 00 00 00 00 00 00 00
{258} normal block at 0x0035AEF0, 28 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{257} normal block at 0x007C4D48, 144 bytes long.
Data: < U > A4 C2 F4 55 CD CD CD CD 00 00 00 00 00 00 00 00
{255} normal block at 0x007C0AB8, 16388 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{254} normal block at 0x0035CF30, 12 bytes long.
Data: < | > 01 10 00 00 01 00 00 00 B8 0A 7C 00
{253} normal block at 0x007C0978, 256 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{252} normal block at 0x007C08A8, 148 bytes long.
Data: < ! U > 8C 21 F5 55 01 00 00 00 00 00 00 00 00 00 00 00
{251} normal block at 0x0035FEB8, 256 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{250} normal block at 0x0035FDE8, 148 bytes long.
Data: < ! U > 8C 21 F5 55 01 00 00 00 00 00 00 00 00 00 00 00
{249} normal block at 0x007C0068, 2048 bytes long.
Data: < 5 > A0 FD 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{248} normal block at 0x0035FDA0, 12 bytes long.
Data: <` 5 > 60 F9 35 00 00 00 00 00 FF FF FF FF
{247} normal block at 0x0035F960, 1024 bytes long.
Data: < 5 | > E8 FD 35 00 A8 08 7C 00 00 00 00 00 00 00 00 00
{246} normal block at 0x0035F8B8, 104 bytes long.
Data: < 5 5 > 10 B1 35 00 98 D0 35 00 02 00 00 00 02 00 00 00
{245} normal block at 0x0035F078, 2048 bytes long.
Data: <0 5 > 30 F0 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{244} normal block at 0x0035F030, 12 bytes long.
Data: < 5 > F0 EB 35 00 00 00 00 00 FF FF FF FF
{243} normal block at 0x0035EBF0, 1024 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{242} normal block at 0x0035E3B0, 2048 bytes long.
Data: <h 5 > 68 E3 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{241} normal block at 0x0035E368, 12 bytes long.
Data: <(5 > 28 DF 35 00 00 00 00 00 FF FF FF FF
{240} normal block at 0x0035DF28, 1024 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{239} normal block at 0x0035DE08, 224 bytes long.
Data: < U 5 > 98 13 F5 55 00 00 00 00 0C DE 35 00 00 00 00 00
{238} normal block at 0x0035D5C8, 2048 bytes long.
Data: < 5 > 80 D5 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{237} normal block at 0x0035D580, 12 bytes long.
Data: <@ 5 > 40 D1 35 00 00 00 00 00 FF FF FF FF
{236} normal block at 0x0035D140, 1024 bytes long.
Data: < 5 > 08 DE 35 00 00 00 00 00 00 00 00 00 00 00 00 00
{235} normal block at 0x0035D098, 104 bytes long.
Data: < 5 5 5 > 10 B1 35 00 B8 F8 35 00 08 DE 35 00 CD CD CD CD
{234} normal block at 0x0035D008, 80 bytes long.
Data: <, U\ U > 2C C4 F4 55 5C C1 F4 55 00 00 00 00 00 00 00 00
{233} normal block at 0x0035CF78, 80 bytes long.
Data: <, U\ U > 2C C4 F4 55 5C C1 F4 55 00 00 00 00 00 00 00 00
{231} normal block at 0x0035CEF0, 4 bytes long.
Data: < > 00 00 00 00
{230} normal block at 0x0035CE58, 88 bytes long.
Data: < | 5 > 01 00 00 00 00 00 00 00 01 00 00 00 7C CF 35 00
{229} normal block at 0x0035C300, 44 bytes long.
Data: < > 03 00 00 00 02 00 00 00 02 00 00 00 00 00 00 00
{228} normal block at 0x0035C5E0, 2104 bytes long.
Data: < > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
{227} normal block at 0x0035C4D0, 208 bytes long.
Data: <l U 5 0 5 > 6C 0A F5 55 00 00 00 00 E8 C0 35 00 30 C1 35 00
{225} normal block at 0x0035C2C0, 4 bytes long.
Data: <5> B8 F8 35 00
{224} normal block at 0x0035C280, 4 bytes long.
Data: <5> 98 D0 35 00
{223} normal block at 0x0035C200, 64 bytes long.
Data: < 5 > 10 C5 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{222} normal block at 0x0035C488, 8 bytes long.
Data: < > 00 00 00 00 01 00 00 00
{221} normal block at 0x0035C418, 48 bytes long.
Data: < > 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
{220} normal block at 0x0035C3D8, 4 bytes long.
Data: < > 00 00 00 00
{219} normal block at 0x0035C378, 36 bytes long.
Data: < > 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00
{217} normal block at 0x0035C130, 148 bytes long.
Data: <l U > 6C D7 F4 55 02 00 00 00 01 00 00 00 10 00 00 00
{216} normal block at 0x0035C0E8, 8 bytes long.
Data: < U 5 > C0 11 F5 55 10 B1 35 00
{215} normal block at 0x0035B8A8, 2048 bytes long.
Data: < 5 > 00 AE 35 00 CD CD CD CD CD CD CD CD CD CD CD CD
{214} normal block at 0x0035AE00, 12 bytes long.
Data: <h 5 > 68 B4 35 00 00 00 00 00 FF FF FF FF
{213} normal block at 0x0035B468, 1024 bytes long.
Data: < N| > 18 4E 7C 00 00 00 00 00 00 00 00 00 00 00 00 00
{212} normal block at 0x0035AF50, 36 bytes long.
Data: < > 00 00 00 00 02 00 00 00 01 00 00 00 01 00 00 00
{211} normal block at 0x0035B110, 368 bytes long.
Data: < UP 5 > CC 1D F5 55 50 AF 35 00 00 00 00 00 00 00 00 00
Object dump complete.
Fuites disparaissent juste après que je commente le
unbounded_buffer<int> m_myDataBuffer;
ou après avoir en commentaire
_CrtSetDbgFlag (_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
Y at-il unbounded_buffer de spécial que je dois faire pour le libérer même si elle n'est pas utilisé? Ou dois-je définir _CrtSetDbgFlag d'une manière spéciale? Est-ce que _CrtSetDbgFlag est la cause des fuites de mémoire ou est-ce que cela crée d'une manière ou d'une autre de fausses détections dans ce cas et il n'y a pas de véritables fuites de mémoire? Qu'est-ce que j'oublie ici?
Je suis sûr à 100% que ces fuites ne viennent pas de mon code, car j'ai aussi
#ifdef _DEBUG
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#define new new(_NORMAL_BLOCK,__FILE__, __LINE__)
dans mon stdafx.h si les fuites de mémoire de mon code ont des noms de fichiers et des lignes. Mais ceux de unbounded_buffer n'ont pas cette information, donc je suppose que cela signifie qu'ils proviennent de la bibliothèque des agents.