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java.lang.Objectorg.apache.tomcat.jni.Pool
public class Pool
Pool
| Constructor Summary | |
|---|---|
| Pool() | |
| Method Summary | |
|---|---|
| static java.nio.ByteBuffer | alloc(long p,
      int size)Allocate a block of memory from a pool | 
| static java.nio.ByteBuffer | calloc(long p,
       int size)Allocate a block of memory from a pool and set all of the memory to 0 | 
| static void | cleanupForExec()Run all of the child_cleanups, so that any unnecessary files are closed because we are about to exec a new program | 
| static void | cleanupKill(long pool,
            long data)Remove a previously registered cleanup function | 
| static long | cleanupRegister(long pool,
                java.lang.Object o)Register a function to be called when a pool is cleared or destroyed | 
| static void | clear(long pool)Clear all memory in the pool and run all the cleanups. | 
| static long | create(long parent)Create a new pool. | 
| static java.lang.Object | dataGet(long pool,
        java.lang.String key)Return the data associated with the current pool. | 
| static int | dataSet(long pool,
        java.lang.String key,
        java.lang.Object data)Set the data associated with the current pool | 
| static void | destroy(long pool)Destroy the pool. | 
| static boolean | isAncestor(long a,
           long b)Determine if pool a is an ancestor of pool b | 
| static void | noteSubprocess(long a,
               long proc,
               int how)Register a process to be killed when a pool dies. | 
| static long | parentGet(long pool)Get the parent pool of the specified pool. | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Constructor Detail | 
|---|
public Pool()
| Method Detail | 
|---|
public static long create(long parent)
parent - The parent pool.  If this is 0, the new pool is a root
 pool.  If it is non-zero, the new pool will inherit all
 of its parent pool's attributes, except the apr_pool_t will
 be a sub-pool.
public static void clear(long pool)
pool - The pool to clear
 This does not actually free the memory, it just allows the pool
         to re-use this memory for the next allocation.public static void destroy(long pool)
pool - The pool to destroypublic static long parentGet(long pool)
pool - The pool for retrieving the parent pool.
public static boolean isAncestor(long a,
                                 long b)
a - The pool to searchb - The pool to search for
public static long cleanupRegister(long pool,
                                   java.lang.Object o)
pool - The pool register the cleanup witho - The object to call when the pool is cleared
                      or destroyed
public static void cleanupKill(long pool,
                               long data)
pool - The pool remove the cleanup fromdata - The cleanup handler to remove from cleanup
public static void noteSubprocess(long a,
                                  long proc,
                                  int how)
a - The pool to use to define the processes lifetimeproc - The process to registerhow - How to kill the process, one of:
 APR_KILL_NEVER -- process is never sent any signals APR_KILL_ALWAYS -- process is sent SIGKILL on apr_pool_t cleanup APR_KILL_AFTER_TIMEOUT -- SIGTERM, wait 3 seconds, SIGKILL APR_JUST_WAIT -- wait forever for the process to complete APR_KILL_ONLY_ONCE -- send SIGTERM and then wait
public static java.nio.ByteBuffer alloc(long p,
                                        int size)
p - The pool to allocate fromsize - The amount of memory to allocate
public static java.nio.ByteBuffer calloc(long p,
                                         int size)
p - The pool to allocate fromsize - The amount of memory to allocate
public static int dataSet(long pool,
                          java.lang.String key,
                          java.lang.Object data)
data - The user data associated with the pool.key - The key to use for associationpool - The current pool
 
public static java.lang.Object dataGet(long pool,
                                       java.lang.String key)
key - The key for the data to retrievepool - The current pool.public static void cleanupForExec()
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