jk_pool_apr.c

Tomcat 4.1与WebServer集成组件的源代码包.

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 *                 The Apache Software License,  Version 1.1                 *
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 * 4. The names  "The  Jakarta  Project",  "Jk",  and  "Apache  Software     *
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/**
 * Pool using APR.
 *
 * @author Costin Manolache
 */

#ifdef HAS_APR

#include "apr_pools.h"
#include "apr_strings.h"
#include "apr_network_io.h"
#include "apr_errno.h"
#include "apr_general.h"

#include "jk_global.h"
#include "jk_pool.h"
#include "jk_env.h"

/* 
   JK_APR_POOL_DEBUG will enable verbose messages on allocation.

   What's important is to see 'reset' after each request.
*/


/** Nothing - apache will take care ??
 */
static void jk2_pool_apr_close(jk_env_t *env, jk_pool_t *p)
{
#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_close %#lx\n", p);
#endif
}

/** Nothing - apache will take care.
    XXX with jk pools we can implement 'recycling',
    not sure what's the equivalent for apache
*/
static void jk2_pool_apr_reset(jk_env_t *env, jk_pool_t *p)
{
#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_reset %#lx\n", p);
#endif
    apr_pool_clear(p->_private);
}

static void *jk2_pool_apr_calloc(jk_env_t *env, jk_pool_t *p, 
                                 size_t size)
{
#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_calloc %#lx %d\n", p, size);
#endif
    /* assert( p->_private != NULL ) */
    return apr_pcalloc( (apr_pool_t *)p->_private, (apr_size_t)size);
}

static void *jk2_pool_apr_alloc(jk_env_t *env, jk_pool_t *p, 
                                size_t size)
{
#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_alloc %#lx %d\n", p, size);
#endif

    return apr_palloc( (apr_pool_t *)p->_private, (apr_size_t)size);
}

static void *jk2_pool_apr_realloc(jk_env_t *env, jk_pool_t *p, 
                                  size_t sz,
                                  const void *old,
                                  size_t old_sz)
{
    void *rc;

#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_realloc %#lx %d\n", p, sz);
#endif
    if(!p || (!old && old_sz)) {
        return NULL;
    }

    rc = jk2_pool_apr_alloc(env, p, sz);
    if(rc) {
        memcpy(rc, old, old_sz);
    }

    return rc;
}

static void *jk2_pool_apr_strdup(jk_env_t *env, jk_pool_t *p, 
                                 const char *s)
{
#ifdef JK_APR_POOL_DEBUG
    fprintf(stderr, "apr_strdup %#lx %d\n", p, ((s==NULL)?-1: (int)strlen(s)));
#endif
    return apr_pstrdup( (apr_pool_t *)p->_private, s);
}

static void jk2_pool_apr_initMethods(jk_env_t *env,  jk_pool_t *_this );

static jk_pool_t *jk2_pool_apr_createChild( jk_env_t *env, jk_pool_t *_this,
                                           int sizeHint ) {
    apr_pool_t *parentAprPool=_this->_private;
    apr_pool_t *childAprPool;
    jk_pool_t *newPool;

    apr_pool_create( &childAprPool, parentAprPool );

    newPool=(jk_pool_t *)apr_palloc(parentAprPool, sizeof( jk_pool_t ));
    
    jk2_pool_apr_initMethods( env, newPool );
    newPool->_private=childAprPool;
    
    return newPool;
}


int JK_METHOD jk2_pool_apr_create( jk_env_t *env, jk_pool_t **newPool, jk_pool_t *parent,
                                   void *aprPoolV)
{
    jk_pool_t *_this;
    apr_pool_t *aprPool=(apr_pool_t *)aprPoolV;

    _this=(jk_pool_t *)apr_palloc(aprPool, sizeof( jk_pool_t ));
    *newPool = _this;

    _this->_private=aprPool;
    jk2_pool_apr_initMethods( env, _this );
    return JK_OK;
}

static void jk2_pool_apr_initMethods(jk_env_t *env,  jk_pool_t *_this )
{
    /* methods */
    _this->create=jk2_pool_apr_createChild;
    _this->close=jk2_pool_apr_close;
    _this->reset=jk2_pool_apr_reset;
    _this->alloc=jk2_pool_apr_alloc;
    _this->calloc=jk2_pool_apr_calloc;
    _this->pstrdup=jk2_pool_apr_strdup;
    _this->realloc=jk2_pool_apr_realloc;
}


/* Not used yet */
int  jk2_pool_apr_factory(jk_env_t *env, jk_pool_t *pool,
                          jk_bean_t *result,
                          char *type, char *name)
{
    jk_pool_t *_this=(jk_pool_t *)calloc( 1, sizeof(jk_pool_t));

    result->object=_this;
    
    return JK_OK;
}


#endif