jk_mutex.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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 *    must include the following acknowlegement:                             *
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 * 4. The names  "The  Jakarta  Project",  "Jk",  and  "Apache  Software     *
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/**
 * Mutex support.
 * 
 * @author Costin Manolache
 */

#include "jk_global.h"
#include "jk_map.h"
#include "jk_pool.h"
#include "jk_mutex.h"

/* ==================== Dispatch messages from java ==================== */
    
/** Called by java. Will call the right mutex method.
 */
int JK_METHOD jk2_mutex_invoke(jk_env_t *env, jk_bean_t *bean, jk_endpoint_t *ep, int code,
                               jk_msg_t *msg, int raw)
{
    jk_mutex_t *mutex=(jk_mutex_t *)bean->object;
    int rc=JK_OK;

    if( mutex->mbean->debug > 0 )
        env->l->jkLog(env, env->l, JK_LOG_DEBUG, 
                      "mutex.%d() \n", code);
    
    switch( code ) {
    case MUTEX_LOCK: {
        if( mutex->mbean->debug > 0 )
            env->l->jkLog(env, env->l, JK_LOG_DEBUG, "mutex.open()\n");
        return mutex->lock(env, mutex);
    }
    case MUTEX_TRYLOCK: {
        if( mutex->mbean->debug > 0 )
            env->l->jkLog(env, env->l, JK_LOG_DEBUG, "mutex.close()\n");
        return mutex->tryLock(env, mutex);
    }
    case MUTEX_UNLOCK: {
        if( mutex->mbean->debug > 0 )
            env->l->jkLog(env, env->l, JK_LOG_DEBUG, "mutex.recv()\n");
        return mutex->unLock(env, mutex);
    }
    }/* switch */
    return JK_ERR;
}