Class Loader.Helper

java.lang.Object
org.bytedeco.javacpp.Loader.Helper
Enclosing class:
Loader
public static class Loader.Helper extends Object

  • Constructor Summary

    Constructors
    Constructor
    Description
    Helper()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static Object
    accessGlobalRef(Pointer globalRef)
    Returns an Object from the JNI global reference stored in the Pointer.
    static Pointer
    addressof(String symbol)
    Returns the address found under the given name in the "dynamic symbol tables" (Linux, Mac OS X, etc) or the "export tables" (Windows) of all libraries loaded, or null if not found.
    static void
    deleteGlobalRef(Pointer globalRef)
    Deletes the JNI global reference stored in the Pointer.
    static Pointer
    getJavaVM()
    Returns the JavaVM JNI object, as required by some APIs for initialization.
    static void
    loadGlobal(String filename)
    Loads all symbols from a library globally, that is dlopen(filename, RTLD_LAZY | RTLD_GLOBAL), or simply by default with LoadLibrary(filename) on Windows.
    static Pointer
    newGlobalRef(Object object)
    Returns a JNI global reference stored in a Pointer for the given Object.
    static int
    totalChips()
    Returns the number of CPU chips installed according to the operating system, or 0 if unknown.
    static int
    totalCores()
    Returns the number of CPU cores usable according to the operating system, or 0 if unknown.
    static int
    totalProcessors()
    Returns the number of processors configured according to the operating system, or 0 if unknown.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Helper

      public Helper()

  • Method Details

    • totalProcessors

      @Name("JavaCPP_totalProcessors") public static int totalProcessors()
      Returns the number of processors configured according to the operating system, or 0 if unknown. This value can be greater than Runtime.availableProcessors() and totalCores().

    • totalCores

      @Name("JavaCPP_totalCores") public static int totalCores()
      Returns the number of CPU cores usable according to the operating system, or 0 if unknown. For SMT-capable systems, this value may be less than totalProcessors().

    • totalChips

      @Name("JavaCPP_totalChips") public static int totalChips()
      Returns the number of CPU chips installed according to the operating system, or 0 if unknown. For multi-core processors, this value may be less than totalCores().

    • addressof

      @Name("JavaCPP_addressof") public static Pointer addressof(String symbol)
      Returns the address found under the given name in the "dynamic symbol tables" (Linux, Mac OS X, etc) or the "export tables" (Windows) of all libraries loaded, or null if not found.

    • loadGlobal

      @Name("JavaCPP_loadGlobal") @Raw(withEnv=true) public static void loadGlobal(String filename)
      Loads all symbols from a library globally, that is dlopen(filename, RTLD_LAZY | RTLD_GLOBAL), or simply by default with LoadLibrary(filename) on Windows. If the library name passed to one of the other load functions in this class ends with "!", this function will get called on them.

    • getJavaVM

      @Name("JavaCPP_getJavaVM") @Cast("JavaVM*") public static Pointer getJavaVM()
      Returns the JavaVM JNI object, as required by some APIs for initialization.

    • newGlobalRef

      @Name("JavaCPP_newGlobalRef") @Cast("jobject") public static Pointer newGlobalRef(@Raw(withEnv=true) Object object)
      Returns a JNI global reference stored in a Pointer for the given Object.

    • accessGlobalRef

      @Name("JavaCPP_accessGlobalRef") @Raw(withEnv=true) public static Object accessGlobalRef(@Cast("jobject") Pointer globalRef)
      Returns an Object from the JNI global reference stored in the Pointer.

    • deleteGlobalRef

      @Name("JavaCPP_deleteGlobalRef") @Raw(withEnv=true) public static void deleteGlobalRef(@Cast("jobject") Pointer globalRef)
      Deletes the JNI global reference stored in the Pointer.