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
|
#ifndef GU_OUT_H_
#define GU_OUT_H_
#include <gu/defs.h>
#include <gu/assert.h>
#include <gu/exn.h>
typedef struct GuOut GuOut;
typedef struct GuOutStream GuOutStream;
struct GuOutStream {
uint8_t* (*begin_buf)(GuOutStream* self, size_t req, size_t* sz_out,
GuExn* err);
void (*end_buf)(GuOutStream* self, size_t span, GuExn* err);
size_t (*output)(GuOutStream* self, const uint8_t* buf, size_t size,
GuExn* err);
void (*flush)(GuOutStream* self, GuExn* err);
};
struct GuOut {
uint8_t* restrict buf_end;
ptrdiff_t buf_curr;
size_t buf_size;
GuOutStream* stream;
GuFinalizer fini;
};
GuOut
gu_init_out(GuOutStream* stream);
GuOut*
gu_new_out(GuOutStream* stream, GuPool* pool);
inline bool
gu_out_is_buffered(GuOut* out)
{
return !!out->stream->begin_buf;
}
GuOutStream*
gu_out_proxy_stream(GuOut* out, GuPool* pool);
GuOut*
gu_new_buffered_out(GuOut* out, size_t buf_sz, GuPool* pool);
GuOut*
gu_out_buffered(GuOut* out, GuPool* pool);
uint8_t*
gu_out_begin_span(GuOut* out, size_t req, size_t* sz_out, GuExn* err);
uint8_t*
gu_out_force_span(GuOut* out, size_t min, size_t max, size_t* sz_out,
GuExn* err);
void
gu_out_end_span(GuOut* out, size_t sz);
size_t
gu_out_bytes_(GuOut* restrict out, const uint8_t* restrict src,
size_t len, GuExn* err);
inline bool
gu_out_try_buf_(GuOut* restrict out, const uint8_t* restrict src, size_t len)
{
gu_require(len <= PTRDIFF_MAX);
ptrdiff_t curr = out->buf_curr;
ptrdiff_t new_curr = curr + (ptrdiff_t) len;
if (GU_UNLIKELY(new_curr > 0)) {
return false;
}
memcpy(&out->buf_end[curr], src, len);
out->buf_curr = new_curr;
return true;
}
inline size_t
gu_out_bytes(GuOut* restrict out, const uint8_t* restrict src, size_t len,
GuExn* err)
{
if (GU_LIKELY(gu_out_try_buf_(out, src, len))) {
return len;
}
return gu_out_bytes_(out, src, len, err);
}
void
gu_out_flush(GuOut* out, GuExn* err);
inline bool
gu_out_try_u8_(GuOut* restrict out, uint8_t u)
{
ptrdiff_t curr = out->buf_curr;
ptrdiff_t new_curr = curr + 1;
if (GU_UNLIKELY(new_curr > 0)) {
return false;
}
out->buf_end[curr] = u;
out->buf_curr = new_curr;
return true;
}
inline void
gu_out_u8(GuOut* restrict out, uint8_t u, GuExn* err)
{
if (GU_UNLIKELY(!gu_out_try_u8_(out, u))) {
extern void gu_out_u8_(GuOut* restrict out, uint8_t u,
GuExn* err);
gu_out_u8_(out, u, err);
}
}
inline void
gu_out_s8(GuOut* restrict out, int8_t i, GuExn* err)
{
gu_out_u8(out, (uint8_t) i, err);
}
void
gu_out_u16le(GuOut* out, uint16_t u, GuExn* err);
void
gu_out_u16be(GuOut* out, uint16_t u, GuExn* err);
void
gu_out_s16le(GuOut* out, int16_t u, GuExn* err);
void
gu_out_s16be(GuOut* out, int16_t u, GuExn* err);
void
gu_out_u32le(GuOut* out, uint32_t u, GuExn* err);
void
gu_out_u32be(GuOut* out, uint32_t u, GuExn* err);
void
gu_out_s32le(GuOut* out, int32_t u, GuExn* err);
void
gu_out_s32be(GuOut* out, int32_t u, GuExn* err);
void
gu_out_u64le(GuOut* out, uint64_t u, GuExn* err);
void
gu_out_u64be(GuOut* out, uint64_t u, GuExn* err);
void
gu_out_s64le(GuOut* out, int64_t u, GuExn* err);
void
gu_out_s64be(GuOut* out, int64_t u, GuExn* err);
void
gu_out_f64le(GuOut* out, double d, GuExn* err);
void
gu_out_f64be(GuOut* out, double d, GuExn* err);
#endif // GU_OUT_H_
|
