Package org.apache.tomcat.jni

Class Buffer

java.lang.Object
org.apache.tomcat.jni.Buffer
public class Buffer extends Object
Provides utilities related to the use of directly allocated ByteBuffer instances with native code.

  • Constructor Details

    • Buffer

      public Buffer()

  • Method Details

    • malloc

      @Deprecated public static ByteBuffer malloc(int size)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Allocate a new ByteBuffer from memory
      Parameters:
      size - The amount of memory to allocate
      Returns:
      The ByteBuffer with allocated memory

    • calloc

      @Deprecated public static ByteBuffer calloc(int num, int size)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Allocate a new ByteBuffer from memory and set all of the memory to 0
      Parameters:
      num - Number of elements.
      size - Length in bytes of each element.
      Returns:
      The ByteBuffer with allocated memory

    • palloc

      @Deprecated public static ByteBuffer palloc(long p, int size)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Allocate a new ByteBuffer from a pool
      Parameters:
      p - The pool to allocate from
      size - The amount of memory to allocate
      Returns:
      The ByteBuffer with allocated memory

    • pcalloc

      @Deprecated public static ByteBuffer pcalloc(long p, int size)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Allocate a new ByteBuffer from a pool and set all of the memory to 0
      Parameters:
      p - The pool to allocate from
      size - The amount of memory to allocate
      Returns:
      The ByteBuffer with allocated memory

    • create

      @Deprecated public static ByteBuffer create(long mem, int size)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Allocate a new ByteBuffer from already allocated memory.
      Allocated memory must be provided from call to the Stdlib.alloc or Stdlib.calloc methods.
      Parameters:
      mem - The memory to use
      size - The amount of memory to use
      Returns:
      The ByteBuffer with attached memory

    • free

      @Deprecated public static void free(ByteBuffer buf)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Deallocates or frees a memory block used by ByteBuffer
      Warning : Call this method only on ByteBuffers that were created by calling Buffer.alloc or Buffer.calloc.
      Parameters:
      buf - Previously allocated ByteBuffer to be freed.

    • address

      public static long address(ByteBuffer buf)
      Returns the memory address of the ByteBuffer.
      Parameters:
      buf - Previously allocated ByteBuffer.
      Returns:
      the memory address

    • size

      @Deprecated public static long size(ByteBuffer buf)
      Deprecated.
      Unused. Will be removed in Tomcat 10.1
      Returns the allocated memory size of the ByteBuffer.
      Parameters:
      buf - Previously allocated ByteBuffer.
      Returns:
      the size