1 /*
2 * (C) Copyright 2005- ECMWF.
3 *
4 * This software is licensed under the terms of the Apache Licence Version 2.0
5 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
6 *
7 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
8 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
9 */
10
11 /***************************************************************************
12 *
13 * Enrico Fucile
14 *
15 ***************************************************************************/
16
17 #include "grib_api_internal.h"
18
grib_vsarray_new(grib_context * c,size_t size,size_t incsize)19 grib_vsarray* grib_vsarray_new(grib_context* c, size_t size, size_t incsize)
20 {
21 grib_vsarray* v = NULL;
22 if (!c)
23 c = grib_context_get_default();
24 v = (grib_vsarray*)grib_context_malloc_clear(c, sizeof(grib_vsarray));
25 if (!v) {
26 grib_context_log(c, GRIB_LOG_ERROR,
27 "grib_vsarray_new unable to allocate %ld bytes\n", sizeof(grib_vsarray));
28 return NULL;
29 }
30 v->size = size;
31 v->n = 0;
32 v->incsize = incsize;
33 v->context = c;
34 v->v = (grib_sarray**)grib_context_malloc_clear(c, sizeof(grib_sarray*) * size);
35 if (!v->v) {
36 grib_context_log(c, GRIB_LOG_ERROR,
37 "grib_vsarray_new unable to allocate %ld bytes\n", sizeof(grib_sarray*) * size);
38 return NULL;
39 }
40 return v;
41 }
42
grib_vsarray_resize(grib_vsarray * v)43 static grib_vsarray* grib_vsarray_resize(grib_vsarray* v)
44 {
45 const size_t newsize = v->incsize + v->size;
46 grib_context* c = v->context;
47 if (!c)
48 c = grib_context_get_default();
49
50 v->v = (grib_sarray**)grib_context_realloc(c, v->v, newsize * sizeof(grib_sarray*));
51 v->size = newsize;
52 if (!v->v) {
53 grib_context_log(c, GRIB_LOG_ERROR,
54 "grib_vsarray_resize unable to allocate %ld bytes\n", sizeof(grib_sarray*) * newsize);
55 return NULL;
56 }
57 return v;
58 }
59
grib_vsarray_push(grib_context * c,grib_vsarray * v,grib_sarray * val)60 grib_vsarray* grib_vsarray_push(grib_context* c, grib_vsarray* v, grib_sarray* val)
61 {
62 size_t start_size = 100;
63 size_t start_incsize = 100;
64 if (!v)
65 v = grib_vsarray_new(c, start_size, start_incsize);
66
67 if (v->n >= v->size)
68 v = grib_vsarray_resize(v);
69 v->v[v->n] = val;
70 v->n++;
71 return v;
72 }
73
grib_vsarray_delete(grib_context * c,grib_vsarray * v)74 void grib_vsarray_delete(grib_context* c, grib_vsarray* v)
75 {
76 if (!v)
77 return;
78 if (!c)
79 c = grib_context_get_default();
80 if (v->v)
81 grib_context_free(c, v->v);
82 grib_context_free(c, v);
83 }
84
grib_vsarray_delete_content(grib_context * c,grib_vsarray * v)85 void grib_vsarray_delete_content(grib_context* c, grib_vsarray* v)
86 {
87 int i;
88 if (!v || !v->v)
89 return;
90 if (!c)
91 c = grib_context_get_default();
92 for (i = 0; i < v->n; i++) {
93 grib_sarray_delete_content(c, v->v[i]);
94 grib_sarray_delete(c, v->v[i]);
95 v->v[i] = 0;
96 }
97 v->n = 0;
98 }
99
grib_vsarray_get_array(grib_context * c,grib_vsarray * v)100 grib_sarray** grib_vsarray_get_array(grib_context* c, grib_vsarray* v)
101 {
102 grib_sarray** ret;
103 int i;
104 if (!v)
105 return NULL;
106 ret = (grib_sarray**)grib_context_malloc_clear(c, sizeof(grib_sarray*) * v->n);
107 for (i = 0; i < v->n; i++)
108 ret[i] = v->v[i];
109 return ret;
110 }
111
grib_vsarray_used_size(grib_vsarray * v)112 size_t grib_vsarray_used_size(grib_vsarray* v)
113 {
114 return v->n;
115 }
116