eccodes/src/grib_vsarray.c

101 lines
2.8 KiB
C

/*
* Copyright 2005-2018 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.
*/
/***************************************************************************
*
* Enrico Fucile
*
***************************************************************************/
#include "grib_api_internal.h"
grib_vsarray* grib_vsarray_new(grib_context* c,size_t size,size_t incsize)
{
grib_vsarray* v=NULL;
if (!c) c=grib_context_get_default();
v=(grib_vsarray*)grib_context_malloc_clear(c,sizeof(grib_vsarray));
if (!v) {
grib_context_log(c,GRIB_LOG_ERROR,
"grib_vsarray_new unable to allocate %d bytes\n",sizeof(grib_vsarray));
return NULL;
}
v->size=size;
v->n=0;
v->incsize=incsize;
v->v=(grib_sarray**)grib_context_malloc_clear(c,sizeof(grib_sarray*)*size);
if (!v->v) {
grib_context_log(c,GRIB_LOG_ERROR,
"grib_vsarray_new unable to allocate %d bytes\n",sizeof(grib_sarray*)*size);
return NULL;
}
return v;
}
grib_vsarray* grib_vsarray_resize(grib_context* c,grib_vsarray* v)
{
int newsize=v->incsize+v->size;
if (!c) c=grib_context_get_default();
v->v=(grib_sarray**)grib_context_realloc(c,v->v,newsize*sizeof(grib_sarray*));
v->size=newsize;
if (!v->v) {
grib_context_log(c,GRIB_LOG_ERROR,
"grib_vsarray_resize unable to allocate %d bytes\n",sizeof(grib_sarray*)*newsize);
return NULL;
}
return v;
}
grib_vsarray* grib_vsarray_push(grib_context* c,grib_vsarray* v,grib_sarray* val)
{
size_t start_size=100;
size_t start_incsize=100;
if (!v) v=grib_vsarray_new(c,start_size,start_incsize);
if (v->n >= v->size) v=grib_vsarray_resize(c,v);
v->v[v->n]=val;
v->n++;
return v;
}
void grib_vsarray_delete(grib_context* c,grib_vsarray* v)
{
if (!v) return;
if (!c) grib_context_get_default();
if (v->v) grib_context_free(c,v->v);
grib_context_free(c,v);
}
void grib_vsarray_delete_content(grib_context* c,grib_vsarray* v)
{
int i;
if (!v || !v->v) return;
if (!c) grib_context_get_default();
for (i=0;i<v->n;i++) {
grib_sarray_delete_content(c,v->v[i]);
grib_sarray_delete(c,v->v[i]);
v->v[i]=0;
}
v->n=0;
}
grib_sarray** grib_vsarray_get_array(grib_context* c,grib_vsarray* v)
{
grib_sarray** ret;
int i;
if (!v) return NULL;
ret=(grib_sarray**)grib_context_malloc_clear(c,sizeof(grib_sarray*)*v->n);
for (i=0;i<v->n;i++) ret[i]=v->v[i];
return ret;
}
size_t grib_vsarray_used_size(grib_vsarray* v) { return v->n;}