C++ (Cpp) dlmalloc_inspect_all Examples

Example #1

File: DdmHeap.cpp Project: SAOSP/platform_dalvik

static void walkHeap(bool merge, bool native)
{
    HeapChunkContext ctx;

    memset(&ctx, 0, sizeof(ctx));
    ctx.bufLen = HPSx_CHUNK_SIZE;
    ctx.buf = (u1 *)malloc(ctx.bufLen);
    if (ctx.buf == NULL) {
        return;
    }

    ctx.merge = merge;
    if (native) {
        ctx.type = CHUNK_TYPE("NHSG");
    } else {
        if (ctx.merge) {
            ctx.type = CHUNK_TYPE("HPSG");
        } else {
            ctx.type = CHUNK_TYPE("HPSO");
        }
    }

    ctx.p = ctx.buf;
    ctx.needHeader = true;
    if (native) {
#ifdef USE_DLMALLOC
        dlmalloc_inspect_all(heap_chunk_callback, (void*)&ctx);
#endif
    } else {
        dvmHeapSourceWalk(heap_chunk_callback, (void *)&ctx);
    }
    if (ctx.p > ctx.buf) {
        flush_hpsg_chunk(&ctx);
    }

    free(ctx.buf);
}

Example #2

File: HeapSource.cpp Project: sawrus/dalvik

/*
 * Return unused memory to the system if possible.
 */
static void trimHeaps()
{
    HS_BOILERPLATE();

    HeapSource *hs = gHs;
    size_t heapBytes = 0;
    for (size_t i = 0; i < hs->numHeaps; i++) {
        Heap *heap = &hs->heaps[i];

        /* Return the wilderness chunk to the system. */
        mspace_trim(heap->msp, 0);

        /* Return any whole free pages to the system. */
        mspace_inspect_all(heap->msp, releasePagesInRange, &heapBytes);
    }

    /* Same for the native heap. */
    dlmalloc_trim(0);
    size_t nativeBytes = 0;
    dlmalloc_inspect_all(releasePagesInRange, &nativeBytes);

    LOGD_HEAP("madvised %zd (GC) + %zd (native) = %zd total bytes",
              heapBytes, nativeBytes, heapBytes + nativeBytes);
}