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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2012-2013. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
#ifndef ERL_UTILS_H__
#define ERL_UTILS_H__
#include "sys.h"
#include "erl_smp.h"
#include "erl_printf.h"
struct process;
typedef struct {
#ifdef DEBUG
int smp_api;
#endif
union {
Uint64 not_atomic;
#ifdef ARCH_64
erts_atomic_t atomic;
#else
erts_dw_atomic_t atomic;
#endif
} counter;
} erts_interval_t;
void erts_interval_init(erts_interval_t *);
void erts_smp_interval_init(erts_interval_t *);
Uint64 erts_step_interval_nob(erts_interval_t *);
Uint64 erts_step_interval_relb(erts_interval_t *);
Uint64 erts_smp_step_interval_nob(erts_interval_t *);
Uint64 erts_smp_step_interval_relb(erts_interval_t *);
Uint64 erts_ensure_later_interval_nob(erts_interval_t *, Uint64);
Uint64 erts_ensure_later_interval_acqb(erts_interval_t *, Uint64);
Uint64 erts_smp_ensure_later_interval_nob(erts_interval_t *, Uint64);
Uint64 erts_smp_ensure_later_interval_acqb(erts_interval_t *, Uint64);
#ifdef ARCH_32
ERTS_GLB_INLINE Uint64 erts_interval_dw_aint_to_val__(erts_dw_aint_t *);
#endif
ERTS_GLB_INLINE Uint64 erts_current_interval_nob__(erts_interval_t *);
ERTS_GLB_INLINE Uint64 erts_current_interval_acqb__(erts_interval_t *);
ERTS_GLB_INLINE Uint64 erts_current_interval_nob(erts_interval_t *);
ERTS_GLB_INLINE Uint64 erts_current_interval_acqb(erts_interval_t *);
ERTS_GLB_INLINE Uint64 erts_smp_current_interval_nob(erts_interval_t *);
ERTS_GLB_INLINE Uint64 erts_smp_current_interval_acqb(erts_interval_t *);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
#ifdef ARCH_32
ERTS_GLB_INLINE Uint64
erts_interval_dw_aint_to_val__(erts_dw_aint_t *dw)
{
#ifdef ETHR_SU_DW_NAINT_T__
return (Uint64) dw->dw_sint;
#else
Uint64 res;
res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]);
res <<= 32;
res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]);
return res;
#endif
}
#endif
ERTS_GLB_INLINE Uint64
erts_current_interval_nob__(erts_interval_t *icp)
{
#ifdef ARCH_64
return (Uint64) erts_atomic_read_nob(&icp->counter.atomic);
#else
erts_dw_aint_t dw;
erts_dw_atomic_read_nob(&icp->counter.atomic, &dw);
return erts_interval_dw_aint_to_val__(&dw);
#endif
}
ERTS_GLB_INLINE Uint64
erts_current_interval_acqb__(erts_interval_t *icp)
{
#ifdef ARCH_64
return (Uint64) erts_atomic_read_acqb(&icp->counter.atomic);
#else
erts_dw_aint_t dw;
erts_dw_atomic_read_acqb(&icp->counter.atomic, &dw);
return erts_interval_dw_aint_to_val__(&dw);
#endif
}
ERTS_GLB_INLINE Uint64
erts_current_interval_nob(erts_interval_t *icp)
{
ASSERT(!icp->smp_api);
return erts_current_interval_nob__(icp);
}
ERTS_GLB_INLINE Uint64
erts_current_interval_acqb(erts_interval_t *icp)
{
ASSERT(!icp->smp_api);
return erts_current_interval_acqb__(icp);
}
ERTS_GLB_INLINE Uint64
erts_smp_current_interval_nob(erts_interval_t *icp)
{
ASSERT(icp->smp_api);
#ifdef ERTS_SMP
return erts_current_interval_nob__(icp);
#else
return icp->counter.not_atomic;
#endif
}
ERTS_GLB_INLINE Uint64
erts_smp_current_interval_acqb(erts_interval_t *icp)
{
ASSERT(icp->smp_api);
#ifdef ERTS_SMP
return erts_current_interval_acqb__(icp);
#else
return icp->counter.not_atomic;
#endif
}
#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
/*
* To be used to silence unused result warnings, but do not abuse it.
*/
void erts_silence_warn_unused_result(long unused);
int erts_fit_in_bits_int64(Sint64);
int erts_fit_in_bits_int32(Sint32);
int list_length(Eterm);
int erts_is_builtin(Eterm, Eterm, int);
Uint32 make_broken_hash(Eterm);
Uint32 block_hash(byte *, unsigned, Uint32);
Uint32 make_hash2(Eterm);
Uint32 make_hash(Eterm);
void erts_save_emu_args(int argc, char **argv);
Eterm erts_get_emu_args(struct process *c_p);
Eterm erts_get_ethread_info(struct process * c_p);
Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str);
Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui);
Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw);
Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64);
Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64);
Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr);
Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...);
Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]);
Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len);
#define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str))
Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]);
Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp,
Sint length, Eterm terms1[], Uint terms2[]);
Eterm
erts_bld_atom_uword_2tup_list(Uint **hpp, Uint *szp,
Sint length, Eterm atoms[], UWord uints[]);
Eterm
erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length,
Eterm atoms[], Uint uints1[], Uint uints2[]);
void erts_init_utils(void);
void erts_init_utils_mem(void);
erts_dsprintf_buf_t *erts_create_tmp_dsbuf(Uint);
void erts_destroy_tmp_dsbuf(erts_dsprintf_buf_t *);
#if HALFWORD_HEAP
int eq_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base);
# define eq(A,B) eq_rel(A,NULL,B,NULL)
#else
int eq(Eterm, Eterm);
# define eq_rel(A,A_BASE,B,B_BASE) eq(A,B)
#endif
#define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y))))
#if HALFWORD_HEAP
Sint cmp_rel(Eterm, Eterm*, Eterm, Eterm*);
#define CMP(A,B) cmp_rel(A,NULL,B,NULL)
#else
Sint cmp(Eterm, Eterm);
#define cmp_rel(A,A_BASE,B,B_BASE) cmp(A,B)
#define CMP(A,B) cmp(A,B)
#endif
#define cmp_lt(a,b) (CMP((a),(b)) < 0)
#define cmp_le(a,b) (CMP((a),(b)) <= 0)
#define cmp_eq(a,b) (CMP((a),(b)) == 0)
#define cmp_ne(a,b) (CMP((a),(b)) != 0)
#define cmp_ge(a,b) (CMP((a),(b)) >= 0)
#define cmp_gt(a,b) (CMP((a),(b)) > 0)
#define CMP_LT(a,b) ((a) != (b) && cmp_lt((a),(b)))
#define CMP_GE(a,b) ((a) == (b) || cmp_ge((a),(b)))
#define CMP_EQ(a,b) ((a) == (b) || cmp_eq((a),(b)))
#define CMP_NE(a,b) ((a) != (b) && cmp_ne((a),(b)))
#endif
|
