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16ea9620 MV |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef SCM_INLINE_H | |
4 | #define SCM_INLINE_H | |
5 | ||
6 | /* Copyright (C) 2001 Free Software Foundation, Inc. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this software; see the file COPYING. If not, write to | |
20 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
21 | * Boston, MA 02111-1307 USA | |
22 | * | |
23 | * As a special exception, the Free Software Foundation gives permission | |
24 | * for additional uses of the text contained in its release of GUILE. | |
25 | * | |
26 | * The exception is that, if you link the GUILE library with other files | |
27 | * to produce an executable, this does not by itself cause the | |
28 | * resulting executable to be covered by the GNU General Public License. | |
29 | * Your use of that executable is in no way restricted on account of | |
30 | * linking the GUILE library code into it. | |
31 | * | |
32 | * This exception does not however invalidate any other reasons why | |
33 | * the executable file might be covered by the GNU General Public License. | |
34 | * | |
35 | * This exception applies only to the code released by the | |
36 | * Free Software Foundation under the name GUILE. If you copy | |
37 | * code from other Free Software Foundation releases into a copy of | |
38 | * GUILE, as the General Public License permits, the exception does | |
39 | * not apply to the code that you add in this way. To avoid misleading | |
40 | * anyone as to the status of such modified files, you must delete | |
41 | * this exception notice from them. | |
42 | * | |
43 | * If you write modifications of your own for GUILE, it is your choice | |
44 | * whether to permit this exception to apply to your modifications. | |
45 | * If you do not wish that, delete this exception notice. */ | |
46 | ||
47 | /* This file is for inline functions. On platforms that don't support | |
48 | inlining functions, they are turned into ordinary functions. See | |
49 | "inline.c". | |
50 | */ | |
51 | ||
52 | #include "libguile/pairs.h" | |
53 | #include "libguile/gc.h" | |
54 | ||
55 | #ifdef HAVE_INLINE | |
56 | ||
57 | static inline SCM | |
58 | scm_alloc_cell (scm_t_bits car, scm_t_bits cdr) | |
59 | { | |
60 | SCM z; | |
61 | ||
62 | #ifdef GUILE_DEBUG_FREELIST | |
63 | scm_newcell_count++; | |
64 | if (scm_debug_check_freelist) | |
65 | { | |
66 | scm_check_freelist (scm_freelist); | |
67 | scm_gc(); | |
68 | } | |
69 | #endif | |
70 | ||
71 | if (SCM_NULLP (scm_freelist)) | |
72 | { | |
73 | z = scm_gc_for_newcell (&scm_master_freelist, &scm_freelist); | |
74 | } | |
75 | else | |
76 | { | |
77 | z = scm_freelist; | |
78 | scm_freelist = SCM_FREE_CELL_CDR (scm_freelist); | |
79 | } | |
80 | ||
81 | /* Initialize the type slot last so that the cell is ignored by the | |
82 | GC until it is completely initialized. This is only relevant | |
83 | when the GC can actually run during this code, which it can't for | |
84 | cooperating threads, but it might be important when we get true | |
85 | preemptive threads. | |
86 | */ | |
87 | SCM_SET_CELL_WORD_1 (z, cdr); | |
88 | SCM_SET_CELL_WORD_0 (z, car); | |
89 | ||
90 | #ifdef USE_THREADS | |
91 | #ifndef USE_COOP_THREADS | |
92 | /* When we are using non-cooperating threads, we might need to make | |
93 | sure that the initial values for the slots are protected until | |
94 | the cell is completely initialized. | |
95 | */ | |
96 | #error review me | |
97 | scm_remember_upto_here_1 (SCM_PACK (cdr)); | |
98 | #endif | |
99 | #endif | |
100 | ||
101 | return z; | |
102 | } | |
103 | ||
104 | static inline SCM | |
105 | scm_alloc_double_cell (scm_t_bits car, scm_t_bits cbr, | |
106 | scm_t_bits ccr, scm_t_bits cdr) | |
107 | { | |
108 | SCM z; | |
109 | ||
110 | #ifdef GUILE_DEBUG_FREELIST | |
111 | scm_newcell2_count++; | |
112 | if (scm_debug_check_freelist) | |
113 | { | |
114 | scm_check_freelist (scm_freelist2); | |
115 | scm_gc(); | |
116 | } | |
117 | #endif | |
118 | ||
119 | if (SCM_NULLP (scm_freelist2)) | |
120 | { | |
121 | z = scm_gc_for_newcell (&scm_master_freelist2, &scm_freelist2); | |
122 | } | |
123 | else | |
124 | { | |
125 | z = scm_freelist2; | |
126 | scm_freelist2 = SCM_FREE_CELL_CDR (scm_freelist2); | |
127 | } | |
128 | ||
129 | /* Initialize the type slot last so that the cell is ignored by the | |
130 | GC until it is completely initialized. This is only relevant | |
131 | when the GC can actually run during this code, which it can't for | |
132 | cooperating threads, but it might be important when we get true | |
133 | preemptive threads. | |
134 | */ | |
135 | SCM_SET_CELL_WORD_1 (z, cbr); | |
136 | SCM_SET_CELL_WORD_2 (z, ccr); | |
137 | SCM_SET_CELL_WORD_3 (z, cdr); | |
138 | SCM_SET_CELL_WORD_0 (z, car); | |
139 | ||
140 | #ifdef USE_THREADS | |
141 | #ifndef USE_COOP_THREADS | |
142 | /* When we are using non-cooperating threads, we might need to make | |
143 | sure that the initial values for the slots are protected until | |
144 | the cell is completely initialized. | |
145 | */ | |
146 | #error review me | |
147 | scm_remember_upto_here_3 (SCM_PACK (cbr), SCM_PACK (ccr), SCM_PACK (cdr)); | |
148 | #endif | |
149 | #endif | |
150 | ||
151 | return z; | |
152 | } | |
153 | ||
154 | #endif | |
155 | ||
156 | #endif |