Examples with HANDLE com.oracle.svm.core.windows.headers.WinBase.HANDLE used on opensource projects

Example 1 with HANDLE

use of com.oracle.svm.core.windows.headers.WinBase.HANDLE in project graal by oracle.

the class WindowsImageHeapProvider method createImageHeapFileMapping.

/**
 * Returns a handle to the image heap file mapping or the null pointer in case of an error.
 */
@Uninterruptible(reason = "Called during isolate initialization.", mayBeInlined = true)
private static HANDLE createImageHeapFileMapping() {
    /* Get the path of the file that contains the image heap. */
    WCharPointer filePath = StackValue.get(WinBase.MAX_PATH, WCharPointer.class);
    int length = LibLoaderAPI.GetModuleFileNameW((HMODULE) IMAGE_BASE.get(), filePath, WinBase.MAX_PATH);
    if (length == 0 || length == WinBase.MAX_PATH) {
        return WordFactory.nullPointer();
    }
    /* Open the file for mapping. */
    HANDLE fileHandle = FileAPI.CreateFileW(filePath, FileAPI.GENERIC_READ(), FileAPI.FILE_SHARE_READ() | FileAPI.FILE_SHARE_DELETE(), WordFactory.nullPointer(), FileAPI.OPEN_EXISTING(), 0, WordFactory.nullPointer());
    if (fileHandle.equal(WinBase.INVALID_HANDLE_VALUE())) {
        return WordFactory.nullPointer();
    }
    /* Create the mapping and close the file. */
    HANDLE fileMapping = MemoryAPI.CreateFileMappingW(fileHandle, WordFactory.nullPointer(), MemoryAPI.PAGE_READONLY(), 0, 0, WordFactory.nullPointer());
    WinBase.CloseHandle(fileHandle);
    return fileMapping;
}

Example 2 with HANDLE

use of com.oracle.svm.core.windows.headers.WinBase.HANDLE in project graal by oracle.

the class WindowsImageHeapProvider method getImageHeapFileMapping.

@Uninterruptible(reason = "Called during isolate initialization.", mayBeInlined = true)
private static HANDLE getImageHeapFileMapping() {
    HANDLE value = IMAGE_HEAP_FILE_MAPPING.get().read();
    if (value.equal(WindowsUtils.UNINITIALIZED_HANDLE)) {
        HANDLE fileMapping = createImageHeapFileMapping();
        HANDLE existingMapping = (HANDLE) ((Pointer) IMAGE_HEAP_FILE_MAPPING.get()).compareAndSwapWord(0, WindowsUtils.UNINITIALIZED_HANDLE, fileMapping, LocationIdentity.ANY_LOCATION);
        if (existingMapping.equal(WindowsUtils.UNINITIALIZED_HANDLE)) {
            value = fileMapping;
        } else {
            /* Another thread has already created the mapping, so use that. */
            value = existingMapping;
            WinBase.CloseHandle(fileMapping);
        }
    }
    return value;
}

Example 3 with HANDLE

use of com.oracle.svm.core.windows.headers.WinBase.HANDLE in project graal by oracle.

the class WindowsProcessPropertiesSupport method destroyForcibly.

@Override
public boolean destroyForcibly(long processID) {
    HANDLE handle = Process.NoTransitions.OpenProcess(Process.PROCESS_TERMINATE(), 0, (int) processID);
    if (handle.isNull()) {
        return false;
    }
    boolean result = Process.NoTransitions.TerminateProcess(handle, 1) != 0;
    WinBase.CloseHandle(handle);
    return result;
}