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
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* $Rev$ $Date$ */
#ifndef tuscany_stream_hpp
#define tuscany_stream_hpp
/**
* Basic stream type and functions.
*/
#include <stdarg.h>
#include "config.hpp"
#include "gc.hpp"
#include "string.hpp"
namespace tuscany {
/**
* Base output stream.
*/
class ostream {
public:
virtual ostream& vprintf(const char* fmt, ...) = 0;
virtual ostream& write(const string& s) = 0;
virtual ostream& flush() = 0;
};
/**
* Flush a stream.
*/
ostream& flush(ostream& os) {
return os.flush();
}
/**
* Write simple values to a stream.
*/
ostream& operator<<(ostream& os, const char* v) {
return os.vprintf("%s", v);
}
ostream& operator<<(ostream& os, const unsigned char* v) {
return os.vprintf("%s", v);
}
ostream& operator<<(ostream& os, const char v) {
return os.vprintf("%c", v);
}
ostream& operator<<(ostream& os, const int v) {
return os.vprintf("%d", v);
}
ostream& operator<<(ostream& os, const unsigned int v) {
return os.vprintf("%u", v);
}
ostream& operator<<(ostream& os, const long int v) {
return os.vprintf("%ld", v);
}
ostream& operator<<(ostream& os, const long unsigned int v) {
return os.vprintf("%lu", v);
}
ostream& operator<<(ostream& os, const double v) {
return os.vprintf("%g", v);
}
ostream& operator<<(ostream& os, const void* v) {
return os.vprintf("%p", v);
}
ostream& operator<<(ostream& os, const string& v) {
return os.write(v);
}
class stream_endl {
} endl;
ostream& operator<<(ostream& os, unused const stream_endl e) {
os.write("\n");
return os.flush();
}
/*
* Input stream.
*/
class istream {
public:
virtual const int read(void* buf, int size) = 0;
virtual const bool eof() = 0;
virtual const bool fail() = 0;
virtual const int get() = 0;
virtual const int peek() = 0;
};
/**
* Read from an input stream.
*/
const int read(istream& is, void * buf, int size) {
return is.read(buf, size);
}
/**
* Return true if the end of an input stream has been reached.
*/
const bool eof(istream& is) {
return is.eof();
}
/**
* Return true if an input stream can't be accessed.
*/
const bool fail(istream& is) {
return is.fail();
}
/**
* Read a character from a stream.
*/
const int get(istream& is) {
return is.get();
}
/**
* Peek a character from a stream.
*/
const int peek(istream& is) {
return is.peek();
}
template<typename T> ostream& operator<<(ostream& out, const gc_ptr<T>& p) {
return out << p.ptr;
}
#ifdef WANT_MAINTAINER_MODE
/**
* Debug stream implementation with no dependencies on anything else.
*/
class odebugstream : public ostream {
public:
odebugstream() {
}
odebugstream& vprintf(const char* fmt, ...) {
va_list args;
va_start (args, fmt);
string s;
s.len = vsnprintf(NULL, 0, fmt, args);
s.buf = gc_cnew(s.len + 1);
vsnprintf(s.buf, s.len + 1, fmt, args);
buf = buf + s;
va_end (args);
return *this;
}
odebugstream& write(const string& s) {
buf = buf + s;
return *this;
}
odebugstream& flush() {
return *this;
}
private:
friend const string str(odebugstream& os);
string buf;
};
const string str(odebugstream& os) {
return os.buf;
}
#endif
}
#endif /* tuscany_stream_hpp */
|
