amxd_parameter_action.c

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#include <stdlib.h>
 
#include <amxc/amxc.h>
#include <amxp/amxp_signal.h>
 
#include <amxd/amxd_types.h>
#include <amxd/amxd_object.h>
#include <amxd/amxd_parameter.h>
 
#include "amxd_priv.h"
#include "amxd_assert.h"
 
amxd_status_t amxd_param_add_action_cb(amxd_param_t* const param,
                                       const amxd_action_t reason,
                                       amxd_action_fn_t fn,
                                       void* priv) {
    amxd_status_t status = amxd_status_unknown_error;
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
    if((cb != NULL) && (cb->priv == priv)) {
        goto exit;
    }
 
    cb = (amxd_dm_cb_t*) calloc(1, sizeof(amxd_dm_cb_t));
    when_null(cb, exit);
 
    cb->fn = fn;
    cb->reason = reason;
    cb->priv = priv;
    cb->enable = true;
 
    amxc_llist_append(&param->cb_fns, &cb->it);
    status = amxd_status_ok;
 
exit:
    return status;
}
 
amxd_status_t amxd_param_remove_action_cb(amxd_param_t* const param,
                                          const amxd_action_t reason,
                                          amxd_action_fn_t fn) {
    amxd_status_t status = amxd_status_unknown_error;
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
    when_null(cb, exit);
 
    amxc_llist_it_take(&cb->it);
    free(cb);
 
    status = amxd_status_ok;
 
exit:
    return status;
}
 
 
void amxd_param_enable_action_cb(const amxd_param_t* const param,
                                 const amxd_action_t reason,
                                 amxd_action_fn_t fn,
                                 bool enable) {
 
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
    when_null(cb, exit);
 
    cb->enable = enable;
 
exit:
    return;
}
 
bool amxd_param_has_action_cb(amxd_param_t* const param,
                              const amxd_action_t reason,
                              amxd_action_fn_t fn) {
    bool has_cb = false;
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
    when_null(cb, exit);
 
    has_cb = true;
 
exit:
    return has_cb;
}
 
bool amxd_param_has_action(amxd_param_t* const param, const amxd_action_t reason) {
    bool has_cb = false;
    amxd_dm_cb_t* cb = NULL;
    amxd_object_t* super = NULL;
    amxd_param_t* current = NULL;
    when_null(param, exit);
 
    current = param;
    super = amxd_param_get_owner(current);
    while(current != NULL && super != NULL) {
        cb = amxd_get_action(&current->cb_fns, reason, NULL);
        if(cb != NULL) {
            has_cb = true;
            break;
        }
 
        if(amxd_object_get_type(super) == amxd_object_instance) {
            super = amxd_object_get_parent(super);
        } else {
            super = (super->derived_from.llist == NULL) ?
                NULL :
                amxc_container_of(super->derived_from.llist,
                                  amxd_object_t,
                                  derived_objects);
        }
 
        current = amxd_object_get_param_def(super, amxd_param_get_name(param));
    }
 
exit:
    return has_cb;
}
 
void* amxd_param_get_action_cb_data(amxd_param_t* const param,
                                    const amxd_action_t reason,
                                    amxd_action_fn_t fn) {
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
 
exit:
    if(cb != NULL) {
        return cb->priv;
    } else {
        return NULL;
    }
}
 
void amxd_param_set_action_cb_data(amxd_param_t* const param,
                                   const amxd_action_t reason,
                                   amxd_action_fn_t fn,
                                   void* data) {
    amxd_dm_cb_t* cb = NULL;
    when_null(param, exit);
    when_null(fn, exit);
 
    cb = amxd_get_action(&param->cb_fns, reason, fn);
    if(cb != NULL) {
        cb->priv = data;
    }
 
exit:
    return;
}