module_priv.h

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#pragma once
/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software Foundation,
 *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
 
/**
 * $Id: 38c3aa94b815e6e61164f9e2d09456b7c3a3bf71 $
 *
 * @file unlang/module_priv.h
 * @brief Declarations for the unlang module interface
 *
 * @copyright 2006-2019 The FreeRADIUS server project
 */
#include "unlang_priv.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/** A call to a module method
 *
 */
typedef struct {
        unlang_t                        self;                   //!< Common fields in all #unlang_t tree nodes.
        call_env_t const                *call_env;              //!< The per call parsed call environment.
        module_method_call_t            mmc;                    //!< Everything needed to call a module method.
} unlang_module_t;
 
/** A module stack entry
 *
 * Represents a single module call on the unlang stack.
 */
typedef struct {
        char const                      *previous_module;       //!< old request->module
        module_thread_instance_t        *thread;                //!< thread-local data for this module.
                                                                ///< Caching is necessary in the frame state
                                                                ///< structure because the #unlang_t tree is
                                                                ///< shared between all threads, so we can't
                                                                ///< cache thread-specific data in the #unlang_t.
        call_env_result_t               env_result;             //!< Result of the previous call environment expansion.
        void                            *env_data;              //!< Expanded per call "call environment" tmpls.
 
#ifndef NDEBUG
        int                             unlang_indent;          //!< Record what this was when we entered the module.
#endif
        /** @} */
 
        /** @name Resumption and signalling
         * @{
         */
        void                            *rctx;                  //!< for resume / signal
        module_method_t                 resume;                 //!< resumption handler
        unlang_module_signal_t          signal;                 //!< for signal handlers
        fr_signal_t                     sigmask;                //!< Signals to block.
 
        /** @} */
 
        /** @name Retry handlers.
         * @{
         */
        module_method_t                 retry_resume;           //!< which stops retries on resume
        unlang_module_retry_t           retry_cb;               //!< callback to run on timeout
        void                            *timeout_rctx;          //!< rctx data to pass to timeout callback
        module_instance_t const         *mi;                    //!< Module instance to pass to callbacks.
        request_t                       *request;
 
        fr_timer_t                      *ev;                    //!< retry timer just for this module.
        fr_retry_t                      retry;                  //!< retry timers, etc.
 
        /** @} */
 
} unlang_frame_state_module_t;
 
static inline unlang_module_t *unlang_generic_to_module(unlang_t const *p)
{
        fr_assert(p->type == UNLANG_TYPE_MODULE);
        return UNCONST(unlang_module_t *, talloc_get_type_abort_const(p, unlang_module_t));
}
 
static inline unlang_t *unlang_module_to_generic(unlang_module_t *p)
{
        return (unlang_t *)p;
}
 
#ifdef __cplusplus
}
#endif