Annotation of rpl/src/instructions_c9.c, revision 1.26
1.1 bertrand 1: /*
2: ================================================================================
1.25 bertrand 3: RPL/2 (R) version 4.1.32
1.26 ! bertrand 4: Copyright (C) 1989-2020 Dr. BERTRAND Joël
1.1 bertrand 5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
23: #include "rpl-conv.h"
24:
25:
26: /*
27: ================================================================================
28: Fonction 'compress'
29: ================================================================================
30: Entrées :
31: --------------------------------------------------------------------------------
32: Sorties :
33: --------------------------------------------------------------------------------
34: Effets de bord : néant
35: ================================================================================
36: */
37:
38: void
39: instruction_compress(struct_processus *s_etat_processus)
40: {
41: struct_liste_chainee *l_element_courant;
42:
43: struct_objet *s_objet_argument;
44: struct_objet *s_objet_resultat;
45:
46: uLong longueur_initiale;
47: uLong longueur_compression;
48: uLong longueur_max_compression;
49:
50: unsigned char *tampon;
51:
52: if ((*s_etat_processus).affichage_arguments == 'Y')
53: {
54: printf("\n COMPRESS ");
55:
56: if ((*s_etat_processus).langue == 'F')
57: {
58: printf("(compression de données)\n\n");
59: }
60: else
61: {
62: printf("(data compression)\n\n");
63: }
64:
65: printf(" 1: %s\n", d_CHN);
66: printf("-> 1: %s\n", d_LST);
67:
68: return;
69: }
70: else if ((*s_etat_processus).test_instruction == 'Y')
71: {
72: (*s_etat_processus).nombre_arguments = -1;
73: return;
74: }
75:
76: if (test_cfsf(s_etat_processus, 31) == d_vrai)
77: {
78: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
79: {
80: return;
81: }
82: }
83:
84: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
85: &s_objet_argument) == d_erreur)
86: {
87: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
88: return;
89: }
90:
91: if ((*s_objet_argument).type == CHN)
92: {
93: longueur_initiale = (uLong) strlen((unsigned char*)
94: (*s_objet_argument).objet);
95: longueur_max_compression = compressBound(longueur_initiale);
96:
97: if ((tampon = malloc(((size_t) longueur_max_compression) *
98: sizeof(unsigned char))) == NULL)
99: {
100: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
101: return;
102: }
103:
104: longueur_compression = longueur_max_compression;
105:
106: if (compress2(tampon, &longueur_compression,
1.2 bertrand 107: (unsigned char *) (*s_objet_argument).objet,
1.1 bertrand 108: longueur_initiale, 9) != Z_OK)
109: {
110: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
111: return;
112: }
113:
114: liberation(s_etat_processus, s_objet_argument);
115:
116: if ((s_objet_resultat = allocation(s_etat_processus, LST)) == NULL)
117: {
118: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
119: return;
120: }
121:
122: if (((*s_objet_resultat).objet = allocation_maillon(s_etat_processus))
123: == NULL)
124: {
125: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
126: return;
127: }
128:
129: l_element_courant = (*s_objet_resultat).objet;
130:
131: if (((*l_element_courant).donnee = allocation(s_etat_processus, INT))
132: == NULL)
133: {
134: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
135: return;
136: }
137:
138: (*((integer8 *) (*(*l_element_courant).donnee).objet)) =
139: (integer8) longueur_initiale;
140:
141: if (((*l_element_courant).suivant = allocation_maillon(
142: s_etat_processus)) == NULL)
143: {
144: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
145: return;
146: }
147:
148: l_element_courant = (*l_element_courant).suivant;
149: (*l_element_courant).suivant = NULL;
150:
151: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
152: == NULL)
153: {
154: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
155: return;
156: }
157:
158: if (((*(*l_element_courant).donnee).objet = analyse_flux(
159: s_etat_processus, tampon, (integer8) longueur_compression))
160: == NULL)
161: {
162: liberation(s_etat_processus, s_objet_resultat);
163: free(tampon);
164: return;
165: }
166:
167: free(tampon);
168:
169: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
170: s_objet_resultat) == d_erreur)
171: {
172: return;
173: }
174: }
175: else
176: {
177: liberation(s_etat_processus, s_objet_argument);
178:
179: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
180: return;
181: }
182:
183: return;
184: }
185:
186: // vim: ts=4
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