Stdlib (Apache Tomcat 7.0.109 API Documentation)

java.lang.Object
- org.apache.tomcat.jni.Stdlib

```
public class Stdlib
extends Object
```
Stdlib

Author:

Mladen Turk

Constructor Summary

Constructors
Constructor and Description

Stdlib()

Constructors
Constructor and Description
`Stdlib()`

Method Summary

Methods
Modifier and Type	Method and Description
`static long`	`calloc(int num, int sz)` Allocates an array in memory with elements initialized to 0.
`static void`	`free(long mem)` Deallocates or frees a memory block.
`static int`	`getpid()` Get current process pid.
`static int`	`getppid()` Get current process parent pid.
`static long`	`malloc(int sz)` Allocates memory blocks.
`static boolean`	`memread(byte[] dst, long src, int sz)` Read from plain memory
`static boolean`	`memset(long dst, int c, int sz)` Sets buffers to a specified character
`static boolean`	`memwrite(long dst, byte[] src, int sz)` Write to plain memory
`static long`	`realloc(long mem, int sz)` Reallocate memory blocks.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Stdlib
```
public Stdlib()
```
- Method Detail
  - memread
```
public static boolean memread(byte[] dst,
              long src,
              int sz)
```
    Read from plain memory
    
    Parameters:
    dst - Destination byte array
    src - Source memory address
    sz - Number of bytes to copy.
    
    Returns:
    true if the operation was successful
  - memwrite
```
public static boolean memwrite(long dst,
               byte[] src,
               int sz)
```
    Write to plain memory
    
    Parameters:
    dst - Destination memory address
    src - Source byte array
    sz - Number of bytes to copy.
    
    Returns:
    true if the operation was successful
  - memset
```
public static boolean memset(long dst,
             int c,
             int sz)
```
    Sets buffers to a specified character
    
    Parameters:
    dst - Destination memory address
    c - Character to set.
    sz - Number of characters.
    
    Returns:
    true if the operation was successful
  - malloc
```
public static long malloc(int sz)
```
    Allocates memory blocks.
    
    Parameters:
    sz - Bytes to allocate.
    
    Returns:
    a pointer
  - realloc
```
public static long realloc(long mem,
           int sz)
```
    Reallocate memory blocks.
    
    Parameters:
    mem - Pointer to previously allocated memory block.
    sz - New size in bytes.
    
    Returns:
    a pointer
  - calloc
```
public static long calloc(int num,
          int sz)
```
    Allocates an array in memory with elements initialized to 0.
    
    Parameters:
    num - Number of elements.
    sz - Length in bytes of each element.
    
    Returns:
    a pointer
  - free
```
public static void free(long mem)
```
    Deallocates or frees a memory block.
    
    Parameters:
    mem - Previously allocated memory block to be freed.
  - getpid
```
public static int getpid()
```
    Get current process pid.
    
    Returns:
    current pid or < 1 in case of error.
  - getppid
```
public static int getppid()
```
    Get current process parent pid.
    
    Returns:
    parent pid or < 1 in case of error.

Class Stdlib

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Stdlib

Method Detail

memread

memwrite

memset

malloc

realloc

calloc

free

getpid

getppid