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
|
#pragma once
// ------------------------------------------------------------------------
// Standard library
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <ctype.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
// ----------------------------------------------------------------------------
// Dynamic array.
typedef struct bufHdr
{
vlong len;
vlong cap;
byte buf[];
} bufHdr;
#define _bufHdr(s) ((bufHdr*)((uint8*)(s)-offsetof(bufHdr, buf)))
#define buflen(s) ((s) ? (_bufHdr(s)->len) : 0)
#define bufcap(s) ((s) ? (_bufHdr(s)->cap) : 0)
#define bufend(s) ((s) + buflen(s))
#define bufsize(s) ((s) ? (buflen(s) * sizeof((s)[0])) : 0)
#define buffree(s) ((s) ? (free(_bufHdr(s)), (s) = nil) : 0)
#define buffit(s, n) ((n) <= bufcap(s) ? 0 : ((s) = bufgrow((s), (n), sizeof(*(s)))))
#define bufresize(s, n) \
do { \
(buffit(s, n)); \
((_bufHdr(s)->len) = (n)); \
} while (0)
#define bufpush(s, ...) (buffit((s), 1 + buflen(s)), (s)[_bufHdr(s)->len++] = (__VA_ARGS__))
#define bufpop(s, i) (_bufpop((s), (i), sizeof(*(s))), (s)[_bufHdr(s)->len])
void* bufgrow(void*, vlong, vlong);
void _bufpop(void*, int, vlong);
// -----------------------------------------------------------------------------
// Memory allocation
typedef struct mem·Allocator {
void *(*alloc)(ulong size);
void *(*realloc)(void *ptr, ulong size);
void (*free)(void *ptr);
} mem·Allocator;
static mem·Allocator mem·sys = { .alloc = &malloc, .realloc = &realloc, .free = &free };
typedef struct mem·Arena mem·Arena;
mem·Arena *mem·newarena(mem·Allocator from);
void *mem·arenaalloc(mem·Arena *A, ulong size);
void mem·freearena(mem·Arena *A);
// -----------------------------------------------------------------------------
// Co-routines
typedef struct Coro Coro;
Coro* coro·new(uintptr stk, uintptr (*func)(Coro*, uintptr));
uintptr coro·yield(Coro *c, uintptr arg);
error coro·free(Coro *c);
// -----------------------------------------------------------------------------
// Strings
// TODO(nnoll): Move here?
#include ".include/str.h"
// -----------------------------------------------------------------------------
// Maps or dictionaries
#include ".include/map.h"
// -----------------------------------------------------------------------------
// I/O
typedef FILE Stream;
enum SeekPos
{
seek·CUR = SEEK_CUR,
seek·SET = SEEK_SET,
seek·END = SEEK_END
};
Stream *io·open(byte *name, byte *mode);
error io·close(Stream *s);
byte io·getbyte(Stream *s);
error io·ungetbyte(Stream *s, byte c);
vlong io·read(Stream *s, int sz, int n, void *buf);
int io·readln(Stream *s, int n, byte* buf);
error io·putbyte(Stream *s, byte c);
int io·putstring(Stream *s, string str);
vlong io·write(Stream *s, int sz, int n, void *buf);
int io·flush(Stream *s);
int io·seek(Stream *s, long off, enum SeekPos origin);
/* Generic I/O interfaces */
typedef struct io·Reader
{
int (*read)(int n, void *buf);
} io·Reader;
typedef struct io·Peeker
{
byte (*get)(void);
error (*unget)(byte);
} io·Peeker;
typedef struct io·FullReader
{
io·Reader;
io·Peeker;
} io·FullReader;
typedef struct io·Writer
{
int (*write)(int n, void *buf);
} io·Writer;
typedef struct io·Putter
{
error (*put)(byte);
int (*putstr)(string);
} io·Putter;
typedef struct io·FullWriter
{
io·Writer;
io·Putter;
} io·FullWriter;
typedef struct io·ReadWriter
{
io·Reader;
io·Writer;
} io·ReadWriter;
// -----------------------------------------------------------------------------
// Buffered I/O
// -----------------------------------------------------------------------------
// Error handling functions.
void errorf(const byte* fmt, ...);
#define panicf(...) (errorf(__VA_ARGS__), assert(0))
|