eccodes/src/action_class_set.cc

/*
 * (C) Copyright 2005- ECMWF.
 *
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
 */

#include "grib_api_internal.h"
/*
   This is used by make_class.pl

   START_CLASS_DEF
   CLASS      = action
   IMPLEMENTS = dump
   IMPLEMENTS = destroy;execute
   MEMBERS    = grib_expression *expression
   MEMBERS    = char *name
   MEMBERS    = int nofail
   END_CLASS_DEF

 */

/* START_CLASS_IMP */

/*

Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
Instead edit values between START_CLASS_DEF and END_CLASS_DEF
or edit "action.class" and rerun ./make_class.pl

*/

static void init_class      (grib_action_class*);
static void dump            (grib_action* d, FILE*,int);
static void destroy         (grib_context*,grib_action*);
static int execute(grib_action* a,grib_handle* h);


typedef struct grib_action_set {
    grib_action          act;
    /* Members defined in set */
    grib_expression *expression;
    char *name;
    int nofail;
} grib_action_set;


static grib_action_class _grib_action_class_set = {
    0,                              /* super                     */
    "action_class_set",                              /* name                      */
    sizeof(grib_action_set),            /* size                      */
    0,                                   /* inited */
    &init_class,                         /* init_class */
    0,                               /* init                      */
    &destroy,                            /* destroy */

    &dump,                               /* dump                      */
    0,                               /* xref                      */

    0,             /* create_accessor*/

    0,                            /* notify_change */
    0,                            /* reparse */
    &execute,                            /* execute */
};

grib_action_class* grib_action_class_set = &_grib_action_class_set;

static void init_class(grib_action_class* c)
{
}
/* END_CLASS_IMP */

grib_action* grib_action_create_set(grib_context* context,
                                    const char* name, grib_expression* expression, int nofail)
{
    char buf[1024];
    grib_action_set* a;
    grib_action_class* c = grib_action_class_set;
    grib_action* act     = (grib_action*)grib_context_malloc_clear_persistent(context, c->size);
    act->op              = grib_context_strdup_persistent(context, "section");

    act->cclass  = c;
    a            = (grib_action_set*)act;
    act->context = context;

    a->expression = expression;
    a->name       = grib_context_strdup_persistent(context, name);
    a->nofail     = nofail;

    snprintf(buf, 1024, "set%p", (void*)expression);

    act->name = grib_context_strdup_persistent(context, buf);

    return act;
}

static int execute(grib_action* a, grib_handle* h)
{
    int ret               = 0;
    grib_action_set* self = (grib_action_set*)a;
    ret                   = grib_set_expression(h, self->name, self->expression);
    if (self->nofail)
        return 0;
    if (ret != GRIB_SUCCESS) {
        grib_context_log(h->context, GRIB_LOG_ERROR, "Error while setting key '%s' (%s)",
                         self->name, grib_get_error_message(ret));
    }
    return ret;
}

static void dump(grib_action* act, FILE* f, int lvl)
{
    int i = 0;
    const grib_action_set* self = (grib_action_set*)act;
    for (i = 0; i < lvl; i++)
        grib_context_print(act->context, f, "     ");
    grib_context_print(act->context, f, self->name);
    printf("\n");
}

static void destroy(grib_context* context, grib_action* act)
{
    grib_action_set* a = (grib_action_set*)act;

    grib_context_free_persistent(context, a->name);
    grib_expression_free(context, a->expression);
    grib_context_free_persistent(context, act->name);
    grib_context_free_persistent(context, act->op);
}