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
|
#define _CRT_SECURE_NO_WARNINGS
#include "slang-writer.h"
#include "slang-platform.h"
#include "slang-string-util.h"
// Includes to allow us to control console
// output when writing assembly dumps.
#include <fcntl.h>
#ifdef _WIN32
# include <io.h>
#else
# include <unistd.h>
#endif
#include <stdarg.h>
namespace Slang
{
/* !!!!!!!!!!!!!!!!!!!!!!!!! WriterHelper !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SlangResult WriterHelper::print(const char* format, ...)
{
va_list args;
va_start(args, format);
SlangResult res = SLANG_OK;
// numChars is the amount of characters needed *not* including terminating 0
size_t numChars;
{
// Create a copy of args, as will be consumed by calcFormattedSize
va_list argsCopy;
va_copy(argsCopy, args);
numChars = StringUtil::calcFormattedSize(format, argsCopy);
va_end(argsCopy);
}
if (numChars > 0)
{
// We need to add 1 here, because calcFormatted, *requires* space for terminating 0
char* appendBuffer = m_writer->beginAppendBuffer(numChars + 1);
StringUtil::calcFormatted(format, args, numChars, appendBuffer);
res = m_writer->endAppendBuffer(appendBuffer, numChars);
}
va_end(args);
return res;
}
SlangResult WriterHelper::put(const char* text)
{
return m_writer->write(text, ::strlen(text));
}
SlangResult WriterHelper::put(const UnownedStringSlice& text)
{
return m_writer->write(text.begin(), text.getLength());
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! BaseWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
ISlangUnknown* BaseWriter::getInterface(const Guid& guid)
{
return (guid == ISlangUnknown::getTypeGuid() || guid == ISlangWriter::getTypeGuid()) ? static_cast<ISlangWriter*>(this) : nullptr;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! AppendBufferWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SLANG_NO_THROW char* SLANG_MCALL AppendBufferWriter::beginAppendBuffer(size_t maxNumChars)
{
mutex.lock();
m_appendBuffer.setCount(maxNumChars);
return m_appendBuffer.getBuffer();
}
SLANG_NO_THROW SlangResult SLANG_MCALL AppendBufferWriter::endAppendBuffer(char* buffer, size_t numChars)
{
SLANG_ASSERT(m_appendBuffer.getBuffer() == buffer && buffer + numChars <= m_appendBuffer.end());
// Do the actual write
SlangResult res = write(buffer, numChars);
// Clear so that buffer can't be written from again without assert
m_appendBuffer.clear();
mutex.unlock();
return res;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! CallbackWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SLANG_NO_THROW char* SLANG_MCALL CallbackWriter::beginAppendBuffer(size_t maxNumChars)
{
// Add one so there is always space for end termination, we need for the callback.
m_appendBuffer.setCount(maxNumChars + 1);
return m_appendBuffer.getBuffer();
}
SlangResult CallbackWriter::write(const char* chars, size_t numChars)
{
if (numChars > 0)
{
char* appendBuffer = m_appendBuffer.getBuffer();
// See if it's from an append buffer
if (chars >= appendBuffer && (chars + numChars) < (appendBuffer + m_appendBuffer.getCount()))
{
// Set terminating 0
appendBuffer[(chars + numChars) - appendBuffer] = 0;
m_callback(chars, (void*)m_data);
}
else
{
// Use the append buffer to add the terminating 0
m_appendBuffer.setCount(numChars + 1);
::memcpy(m_appendBuffer.getBuffer(), chars, numChars);
m_appendBuffer[numChars] = 0;
m_callback(m_appendBuffer.getBuffer(), (void*)m_data);
}
}
return SLANG_OK;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! FileWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
FileWriter::~FileWriter()
{
if (m_file)
{
::fflush(m_file);
if ((m_flags & WriterFlag::IsUnowned) == 0)
{
::fclose(m_file);
}
}
}
SlangResult FileWriter::write(const char* text, size_t numChars)
{
const size_t numWritten = ::fwrite(text, sizeof(char), numChars, m_file);
if (m_flags & WriterFlag::AutoFlush)
{
::fflush(m_file);
}
return numChars == numWritten ? SLANG_OK : SLANG_FAIL;
}
void FileWriter::flush()
{
::fflush(m_file);
}
/* static */bool FileWriter::isConsole(FILE* file)
{
const int stdoutFileDesc = _fileno(file);
return _isatty(stdoutFileDesc) != 0;
}
SlangResult FileWriter::setMode(SlangWriterMode mode)
{
switch (mode)
{
case SLANG_WRITER_MODE_BINARY:
{
#ifdef _WIN32
int stdoutFileDesc = _fileno(m_file);
_setmode(stdoutFileDesc, _O_BINARY);
return SLANG_OK;
#else
break;
#endif
}
default: break;
}
return SLANG_FAIL;
}
/* static */SlangResult FileWriter::create(const char* filePath, const char* writeOptions, WriterFlags flags, ComPtr<ISlangWriter>& outWriter)
{
flags &= ~WriterFlag::IsUnowned;
FILE* file = fopen(filePath, writeOptions);
if (!file)
{
return SLANG_E_CANNOT_OPEN;
}
outWriter = new FileWriter(file, flags);
return SLANG_OK;
}
/* !!!!!!!!!!!!!!!!!!!!!!!!! StringWriter !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
SLANG_NO_THROW char* SLANG_MCALL StringWriter::beginAppendBuffer(size_t maxNumChars)
{
return m_builder->prepareForAppend(maxNumChars);
}
SLANG_NO_THROW SlangResult SLANG_MCALL StringWriter::endAppendBuffer(char* buffer, size_t numChars)
{
m_builder->appendInPlace(buffer, numChars);
return SLANG_OK;
}
SlangResult StringWriter::write(const char* chars, size_t numChars)
{
if (numChars > 0)
{
m_builder->Append(chars, numChars);
}
return SLANG_OK;
}
}
|
