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1 | 0f923be2 | Michael Roth | #
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2 | 0f923be2 | Michael Roth | # QAPI helper library
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3 | 0f923be2 | Michael Roth | #
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4 | 0f923be2 | Michael Roth | # Copyright IBM, Corp. 2011
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5 | 0f923be2 | Michael Roth | #
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6 | 0f923be2 | Michael Roth | # Authors:
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7 | 0f923be2 | Michael Roth | # Anthony Liguori <aliguori@us.ibm.com>
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8 | 0f923be2 | Michael Roth | #
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9 | 0f923be2 | Michael Roth | # This work is licensed under the terms of the GNU GPLv2.
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10 | 0f923be2 | Michael Roth | # See the COPYING.LIB file in the top-level directory.
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11 | 0f923be2 | Michael Roth | |
12 | 0f923be2 | Michael Roth | from ordereddict import OrderedDict |
13 | 0f923be2 | Michael Roth | |
14 | c0afa9c5 | Michael Roth | builtin_types = [ |
15 | c0afa9c5 | Michael Roth | 'str', 'int', 'number', 'bool', |
16 | c0afa9c5 | Michael Roth | 'int8', 'int16', 'int32', 'int64', |
17 | c0afa9c5 | Michael Roth | 'uint8', 'uint16', 'uint32', 'uint64' |
18 | c0afa9c5 | Michael Roth | ] |
19 | c0afa9c5 | Michael Roth | |
20 | 0f923be2 | Michael Roth | def tokenize(data): |
21 | 0f923be2 | Michael Roth | while len(data): |
22 | e0d45df7 | Luiz Capitulino | ch = data[0]
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23 | e0d45df7 | Luiz Capitulino | data = data[1:]
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24 | e0d45df7 | Luiz Capitulino | if ch in ['{', '}', ':', ',', '[', ']']: |
25 | e0d45df7 | Luiz Capitulino | yield ch
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26 | e0d45df7 | Luiz Capitulino | elif ch in ' \n': |
27 | e0d45df7 | Luiz Capitulino | None
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28 | e0d45df7 | Luiz Capitulino | elif ch == "'": |
29 | 0f923be2 | Michael Roth | string = ''
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30 | e0d45df7 | Luiz Capitulino | esc = False
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31 | e0d45df7 | Luiz Capitulino | while True: |
32 | e0d45df7 | Luiz Capitulino | if (data == ''): |
33 | e0d45df7 | Luiz Capitulino | raise Exception("Mismatched quotes") |
34 | e0d45df7 | Luiz Capitulino | ch = data[0]
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35 | 0f923be2 | Michael Roth | data = data[1:]
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36 | e0d45df7 | Luiz Capitulino | if esc:
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37 | e0d45df7 | Luiz Capitulino | string += ch |
38 | e0d45df7 | Luiz Capitulino | esc = False
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39 | e0d45df7 | Luiz Capitulino | elif ch == "\\": |
40 | e0d45df7 | Luiz Capitulino | esc = True
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41 | e0d45df7 | Luiz Capitulino | elif ch == "'": |
42 | e0d45df7 | Luiz Capitulino | break
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43 | e0d45df7 | Luiz Capitulino | else:
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44 | e0d45df7 | Luiz Capitulino | string += ch |
45 | 0f923be2 | Michael Roth | yield string
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46 | 0f923be2 | Michael Roth | |
47 | 0f923be2 | Michael Roth | def parse(tokens): |
48 | 0f923be2 | Michael Roth | if tokens[0] == '{': |
49 | 0f923be2 | Michael Roth | ret = OrderedDict() |
50 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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51 | 0f923be2 | Michael Roth | while tokens[0] != '}': |
52 | 0f923be2 | Michael Roth | key = tokens[0]
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53 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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54 | 0f923be2 | Michael Roth | |
55 | 0f923be2 | Michael Roth | tokens = tokens[1:] # : |
56 | 0f923be2 | Michael Roth | |
57 | 0f923be2 | Michael Roth | value, tokens = parse(tokens) |
58 | 0f923be2 | Michael Roth | |
59 | 0f923be2 | Michael Roth | if tokens[0] == ',': |
60 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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61 | 0f923be2 | Michael Roth | |
62 | 0f923be2 | Michael Roth | ret[key] = value |
63 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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64 | 0f923be2 | Michael Roth | return ret, tokens
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65 | 0f923be2 | Michael Roth | elif tokens[0] == '[': |
66 | 0f923be2 | Michael Roth | ret = [] |
67 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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68 | 0f923be2 | Michael Roth | while tokens[0] != ']': |
69 | 0f923be2 | Michael Roth | value, tokens = parse(tokens) |
70 | 0f923be2 | Michael Roth | if tokens[0] == ',': |
71 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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72 | 0f923be2 | Michael Roth | ret.append(value) |
73 | 0f923be2 | Michael Roth | tokens = tokens[1:]
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74 | 0f923be2 | Michael Roth | return ret, tokens
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75 | 0f923be2 | Michael Roth | else:
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76 | 0f923be2 | Michael Roth | return tokens[0], tokens[1:] |
77 | 0f923be2 | Michael Roth | |
78 | 0f923be2 | Michael Roth | def evaluate(string): |
79 | 0f923be2 | Michael Roth | return parse(map(lambda x: x, tokenize(string)))[0] |
80 | 0f923be2 | Michael Roth | |
81 | 0f923be2 | Michael Roth | def parse_schema(fp): |
82 | 0f923be2 | Michael Roth | exprs = [] |
83 | 0f923be2 | Michael Roth | expr = ''
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84 | 0f923be2 | Michael Roth | expr_eval = None
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85 | 0f923be2 | Michael Roth | |
86 | 0f923be2 | Michael Roth | for line in fp: |
87 | 0f923be2 | Michael Roth | if line.startswith('#') or line == '\n': |
88 | 0f923be2 | Michael Roth | continue
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89 | 0f923be2 | Michael Roth | |
90 | 0f923be2 | Michael Roth | if line.startswith(' '): |
91 | 0f923be2 | Michael Roth | expr += line |
92 | 0f923be2 | Michael Roth | elif expr:
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93 | 0f923be2 | Michael Roth | expr_eval = evaluate(expr) |
94 | 0f923be2 | Michael Roth | if expr_eval.has_key('enum'): |
95 | 0f923be2 | Michael Roth | add_enum(expr_eval['enum'])
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96 | 0f923be2 | Michael Roth | elif expr_eval.has_key('union'): |
97 | 0f923be2 | Michael Roth | add_enum('%sKind' % expr_eval['union']) |
98 | 0f923be2 | Michael Roth | exprs.append(expr_eval) |
99 | 0f923be2 | Michael Roth | expr = line |
100 | 0f923be2 | Michael Roth | else:
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101 | 0f923be2 | Michael Roth | expr += line |
102 | 0f923be2 | Michael Roth | |
103 | 0f923be2 | Michael Roth | if expr:
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104 | 0f923be2 | Michael Roth | expr_eval = evaluate(expr) |
105 | 0f923be2 | Michael Roth | if expr_eval.has_key('enum'): |
106 | 0f923be2 | Michael Roth | add_enum(expr_eval['enum'])
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107 | 0f923be2 | Michael Roth | elif expr_eval.has_key('union'): |
108 | 0f923be2 | Michael Roth | add_enum('%sKind' % expr_eval['union']) |
109 | 0f923be2 | Michael Roth | exprs.append(expr_eval) |
110 | 0f923be2 | Michael Roth | |
111 | 0f923be2 | Michael Roth | return exprs
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112 | 0f923be2 | Michael Roth | |
113 | 0f923be2 | Michael Roth | def parse_args(typeinfo): |
114 | 0f923be2 | Michael Roth | for member in typeinfo: |
115 | 0f923be2 | Michael Roth | argname = member |
116 | 0f923be2 | Michael Roth | argentry = typeinfo[member] |
117 | 0f923be2 | Michael Roth | optional = False
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118 | 0f923be2 | Michael Roth | structured = False
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119 | 0f923be2 | Michael Roth | if member.startswith('*'): |
120 | 0f923be2 | Michael Roth | argname = member[1:]
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121 | 0f923be2 | Michael Roth | optional = True
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122 | 0f923be2 | Michael Roth | if isinstance(argentry, OrderedDict): |
123 | 0f923be2 | Michael Roth | structured = True
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124 | 0f923be2 | Michael Roth | yield (argname, argentry, optional, structured)
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125 | 0f923be2 | Michael Roth | |
126 | 0f923be2 | Michael Roth | def de_camel_case(name): |
127 | 0f923be2 | Michael Roth | new_name = ''
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128 | 0f923be2 | Michael Roth | for ch in name: |
129 | 0f923be2 | Michael Roth | if ch.isupper() and new_name: |
130 | 0f923be2 | Michael Roth | new_name += '_'
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131 | 0f923be2 | Michael Roth | if ch == '-': |
132 | 0f923be2 | Michael Roth | new_name += '_'
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133 | 0f923be2 | Michael Roth | else:
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134 | 0f923be2 | Michael Roth | new_name += ch.lower() |
135 | 0f923be2 | Michael Roth | return new_name
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136 | 0f923be2 | Michael Roth | |
137 | 0f923be2 | Michael Roth | def camel_case(name): |
138 | 0f923be2 | Michael Roth | new_name = ''
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139 | 0f923be2 | Michael Roth | first = True
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140 | 0f923be2 | Michael Roth | for ch in name: |
141 | 0f923be2 | Michael Roth | if ch in ['_', '-']: |
142 | 0f923be2 | Michael Roth | first = True
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143 | 0f923be2 | Michael Roth | elif first:
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144 | 0f923be2 | Michael Roth | new_name += ch.upper() |
145 | 0f923be2 | Michael Roth | first = False
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146 | 0f923be2 | Michael Roth | else:
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147 | 0f923be2 | Michael Roth | new_name += ch.lower() |
148 | 0f923be2 | Michael Roth | return new_name
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149 | 0f923be2 | Michael Roth | |
150 | eda50a65 | Paolo Bonzini | def c_var(name, protect=True): |
151 | 427a1a2c | Blue Swirl | # ANSI X3J11/88-090, 3.1.1
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152 | 427a1a2c | Blue Swirl | c89_words = set(['auto', 'break', 'case', 'char', 'const', 'continue', |
153 | 427a1a2c | Blue Swirl | 'default', 'do', 'double', 'else', 'enum', 'extern', 'float', |
154 | 427a1a2c | Blue Swirl | 'for', 'goto', 'if', 'int', 'long', 'register', 'return', |
155 | 427a1a2c | Blue Swirl | 'short', 'signed', 'sizeof', 'static', 'struct', 'switch', |
156 | 427a1a2c | Blue Swirl | 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while']) |
157 | 427a1a2c | Blue Swirl | # ISO/IEC 9899:1999, 6.4.1
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158 | 427a1a2c | Blue Swirl | c99_words = set(['inline', 'restrict', '_Bool', '_Complex', '_Imaginary']) |
159 | 427a1a2c | Blue Swirl | # ISO/IEC 9899:2011, 6.4.1
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160 | 427a1a2c | Blue Swirl | c11_words = set(['_Alignas', '_Alignof', '_Atomic', '_Generic', '_Noreturn', |
161 | 427a1a2c | Blue Swirl | '_Static_assert', '_Thread_local']) |
162 | 427a1a2c | Blue Swirl | # GCC http://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/C-Extensions.html
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163 | 427a1a2c | Blue Swirl | # excluding _.*
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164 | 427a1a2c | Blue Swirl | gcc_words = set(['asm', 'typeof']) |
165 | 1057725f | Paolo Bonzini | # namespace pollution:
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166 | 1057725f | Paolo Bonzini | polluted_words = set(['unix']) |
167 | 1057725f | Paolo Bonzini | if protect and (name in c89_words | c99_words | c11_words | gcc_words | polluted_words): |
168 | 427a1a2c | Blue Swirl | return "q_" + name |
169 | c9da228b | Federico Simoncelli | return name.replace('-', '_').lstrip("*") |
170 | c9da228b | Federico Simoncelli | |
171 | eda50a65 | Paolo Bonzini | def c_fun(name, protect=True): |
172 | eda50a65 | Paolo Bonzini | return c_var(name, protect).replace('.', '_') |
173 | 0f923be2 | Michael Roth | |
174 | 0f923be2 | Michael Roth | def c_list_type(name): |
175 | 0f923be2 | Michael Roth | return '%sList' % name |
176 | 0f923be2 | Michael Roth | |
177 | 0f923be2 | Michael Roth | def type_name(name): |
178 | 0f923be2 | Michael Roth | if type(name) == list: |
179 | 0f923be2 | Michael Roth | return c_list_type(name[0]) |
180 | 0f923be2 | Michael Roth | return name
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181 | 0f923be2 | Michael Roth | |
182 | 0f923be2 | Michael Roth | enum_types = [] |
183 | 0f923be2 | Michael Roth | |
184 | 0f923be2 | Michael Roth | def add_enum(name): |
185 | 0f923be2 | Michael Roth | global enum_types
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186 | 0f923be2 | Michael Roth | enum_types.append(name) |
187 | 0f923be2 | Michael Roth | |
188 | 0f923be2 | Michael Roth | def is_enum(name): |
189 | 0f923be2 | Michael Roth | global enum_types
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190 | 0f923be2 | Michael Roth | return (name in enum_types) |
191 | 0f923be2 | Michael Roth | |
192 | 0f923be2 | Michael Roth | def c_type(name): |
193 | 0f923be2 | Michael Roth | if name == 'str': |
194 | 0f923be2 | Michael Roth | return 'char *' |
195 | 0f923be2 | Michael Roth | elif name == 'int': |
196 | 0f923be2 | Michael Roth | return 'int64_t' |
197 | c46f18ce | Laszlo Ersek | elif (name == 'int8' or name == 'int16' or name == 'int32' or |
198 | c46f18ce | Laszlo Ersek | name == 'int64' or name == 'uint8' or name == 'uint16' or |
199 | c46f18ce | Laszlo Ersek | name == 'uint32' or name == 'uint64'): |
200 | c46f18ce | Laszlo Ersek | return name + '_t' |
201 | 092705d4 | Laszlo Ersek | elif name == 'size': |
202 | 092705d4 | Laszlo Ersek | return 'uint64_t' |
203 | 0f923be2 | Michael Roth | elif name == 'bool': |
204 | 0f923be2 | Michael Roth | return 'bool' |
205 | 0f923be2 | Michael Roth | elif name == 'number': |
206 | 0f923be2 | Michael Roth | return 'double' |
207 | 0f923be2 | Michael Roth | elif type(name) == list: |
208 | 0f923be2 | Michael Roth | return '%s *' % c_list_type(name[0]) |
209 | 0f923be2 | Michael Roth | elif is_enum(name):
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210 | 0f923be2 | Michael Roth | return name
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211 | 0f923be2 | Michael Roth | elif name == None or len(name) == 0: |
212 | 0f923be2 | Michael Roth | return 'void' |
213 | 0f923be2 | Michael Roth | elif name == name.upper():
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214 | 0f923be2 | Michael Roth | return '%sEvent *' % camel_case(name) |
215 | 0f923be2 | Michael Roth | else:
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216 | 0f923be2 | Michael Roth | return '%s *' % name |
217 | 0f923be2 | Michael Roth | |
218 | 0f923be2 | Michael Roth | def genindent(count): |
219 | 0f923be2 | Michael Roth | ret = ""
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220 | 0f923be2 | Michael Roth | for i in range(count): |
221 | 0f923be2 | Michael Roth | ret += " "
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222 | 0f923be2 | Michael Roth | return ret
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223 | 0f923be2 | Michael Roth | |
224 | 0f923be2 | Michael Roth | indent_level = 0
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225 | 0f923be2 | Michael Roth | |
226 | 0f923be2 | Michael Roth | def push_indent(indent_amount=4): |
227 | 0f923be2 | Michael Roth | global indent_level
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228 | 0f923be2 | Michael Roth | indent_level += indent_amount |
229 | 0f923be2 | Michael Roth | |
230 | 0f923be2 | Michael Roth | def pop_indent(indent_amount=4): |
231 | 0f923be2 | Michael Roth | global indent_level
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232 | 0f923be2 | Michael Roth | indent_level -= indent_amount |
233 | 0f923be2 | Michael Roth | |
234 | 0f923be2 | Michael Roth | def cgen(code, **kwds): |
235 | 0f923be2 | Michael Roth | indent = genindent(indent_level) |
236 | 0f923be2 | Michael Roth | lines = code.split('\n')
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237 | 0f923be2 | Michael Roth | lines = map(lambda x: indent + x, lines) |
238 | 0f923be2 | Michael Roth | return '\n'.join(lines) % kwds + '\n' |
239 | 0f923be2 | Michael Roth | |
240 | 0f923be2 | Michael Roth | def mcgen(code, **kwds): |
241 | 0f923be2 | Michael Roth | return cgen('\n'.join(code.split('\n')[1:-1]), **kwds) |
242 | 0f923be2 | Michael Roth | |
243 | 0f923be2 | Michael Roth | def basename(filename): |
244 | 0f923be2 | Michael Roth | return filename.split("/")[-1] |
245 | 0f923be2 | Michael Roth | |
246 | 0f923be2 | Michael Roth | def guardname(filename): |
247 | d8e1f214 | Michael Roth | guard = basename(filename).rsplit(".", 1)[0] |
248 | d8e1f214 | Michael Roth | for substr in [".", " ", "-"]: |
249 | d8e1f214 | Michael Roth | guard = guard.replace(substr, "_")
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250 | d8e1f214 | Michael Roth | return guard.upper() + '_H' |
251 | c0afa9c5 | Michael Roth | |
252 | c0afa9c5 | Michael Roth | def guardstart(name): |
253 | c0afa9c5 | Michael Roth | return mcgen(''' |
254 | c0afa9c5 | Michael Roth |
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255 | c0afa9c5 | Michael Roth | #ifndef %(name)s
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256 | c0afa9c5 | Michael Roth | #define %(name)s
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257 | c0afa9c5 | Michael Roth |
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258 | c0afa9c5 | Michael Roth | ''',
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259 | c0afa9c5 | Michael Roth | name=guardname(name)) |
260 | c0afa9c5 | Michael Roth | |
261 | c0afa9c5 | Michael Roth | def guardend(name): |
262 | c0afa9c5 | Michael Roth | return mcgen(''' |
263 | c0afa9c5 | Michael Roth |
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264 | c0afa9c5 | Michael Roth | #endif /* %(name)s */
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265 | c0afa9c5 | Michael Roth |
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266 | c0afa9c5 | Michael Roth | ''',
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267 | c0afa9c5 | Michael Roth | name=guardname(name)) |