summaryrefslogtreecommitdiff
path: root/Build/source/texk/ps2pk/util.c
blob: 3c7b82ca9d8972ab9a476b241f47fc2070b20e9f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
/* $XConsortium: util.c,v 1.6 92/03/26 16:42:26 eswu Exp $ */
/* Copyright International Business Machines,Corp. 1991
 * All Rights Reserved
 *
 * License to use, copy, modify, and distribute this software
 * and its documentation for any purpose and without fee is
 * hereby granted, provided that the above copyright notice
 * appear in all copies and that both that copyright notice and
 * this permission notice appear in supporting documentation,
 * and that the name of IBM not be used in advertising or
 * publicity pertaining to distribution of the software without
 * specific, written prior permission.
 *
 * IBM PROVIDES THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES
 * OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
 * LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF
 * THIRD PARTY RIGHTS.  THE ENTIRE RISK AS TO THE QUALITY AND
 * PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT
 * OR MAINTAIN, BELONGS TO THE LICENSEE.  SHOULD ANY PORTION OF
 * THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM) ASSUMES
 * THE ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION.  IN
 * NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */
/* Author: Katherine A. Hitchcock    IBM Almaden Research Laboratory */
 
#include "types.h"
#include <stdio.h>
#include "util.h"
#include "fontmisc.h"

static char *vm_base = NULL;     /* Start of virtual memory area */
       char *vm_next = NULL;     /* Pointer to first free byte */
       int32_t  vm_free = 0;     /* Count of free bytes */
       int32_t  vm_size = 0;     /* Total size of memory */

/*
 * Initialize memory.
 */

boolean vm_init(void)
{
  vm_next = vm_base = (char *) Xalloc(MAX_STRING_LEN);
 
  if (vm_base != NULL) {
    vm_free = MAX_STRING_LEN;
    vm_size = MAX_STRING_LEN;
    tokenMaxP = vm_next_byte() + MAX_STRING_LEN;
    return(TRUE);
  }
  else
    return(FALSE);
}
 
char *vm_alloc(unsigned int bytes)
{
  char *answer;
 
  /* Align returned bytes to 64-bit boundary */
  bytes = (bytes + 7) & ~7;
 
  /* take space from what is left otherwise allocate another CHUNK */
  if (bytes > vm_free)
    if (!vm_init()) return NULL;
  if (bytes <= vm_free) {
    answer = vm_next;
    vm_free -= bytes;
    vm_next += bytes;
    return answer;
  }
  else {
    printf("Trying to allocate %d bytes (%d maximum)\n", bytes, MAX_STRING_LEN);
    return NULL; 
  }
}

/*
 * Format an Integer object
 */
void objFormatInteger(psobj *objP, int value)
{
  if (objP != NULL) {
    objP->type         = OBJ_INTEGER;
    objP->len          = 0;
    objP->data.integer = value;
  }
}
 
/*
 * Format a Real object
 */
void objFormatReal(psobj *objP, float value)
{
  if (objP != NULL) {
    objP->type       = OBJ_REAL;
    objP->len        = 0;
    objP->data.real  = value;
  }
}
 
/*
 * Format a Boolean object
 */
void objFormatBoolean(psobj *objP, boolean value)
{
  if (objP != NULL) {
    objP->type         = OBJ_BOOLEAN;
    objP->len          = 0;
    objP->data.boolean = value;
  }
}
 
/*
 * Format an Encoding object
 */
void objFormatEncoding(psobj *objP, int length, psobj *valueP)
{
  if (objP != NULL) {
    objP->type        = OBJ_ENCODING;
    objP->len         = length;
    objP->data.arrayP = valueP;
  }
}
 
/*
 * Format an Array object
 */
void objFormatArray(psobj *objP, int length, psobj *valueP)
{
  if (objP != NULL) {
    objP->type        = OBJ_ARRAY;
    objP->len         = length;
    objP->data.arrayP = valueP;
  }
}
 
 
/*
 * Format a String object
 */
void objFormatString(psobj *objP, int length, char *valueP)
{
  if (objP != NULL) {
    objP->type         = OBJ_STRING;
    objP->len          = length;
    objP->data.valueP  = valueP;
  }
}
 
/*
 * Format a Name object
 */
void objFormatName(psobj *objP, int length, const char *valueP)
{
  if (objP != NULL) {
    objP->type         = OBJ_NAME;
    objP->len          = length;
    objP->data.nameP   = valueP;
  }
}
 
/*
 * Format a File object
 */
void objFormatFile(psobj *objP, FILE *valueP)
{
  if (objP != NULL) {
    objP->type         = OBJ_FILE;
    objP->len          = 0;
    objP->data.fileP   = valueP;
  }
}