media/mtransport/runnable_utils.py@97036ab72558
media/mtransport/runnable_utils.py
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 # This Source Code Form is subject to the terms of the Mozilla Public
2 # License, v. 2.0. If a copy of the MPL was not distributed with this
3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
4 MAX_ARGS = 15
6 boilerplate = "/* This Source Code Form is subject to the terms of the Mozilla Public\n\
7 * License, v. 2.0. If a copy of the MPL was not distributed with this\n\
8 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */\n"
10 def gen_args_type(args, member):
11 if member:
12 ret = ["C o"]
13 else:
14 ret = []
15 ret.append("M m")
16 for arg in range(0, args):
17 ret.append("A%d a%d"%(arg, arg))
18 return ", ".join(ret)
20 def gen_args(args, member):
21 if member:
22 ret = ["o"]
23 else:
24 ret = []
25 ret.append("m")
26 for arg in range(0, args):
27 ret.append("a%d"%(arg))
28 return ", ".join(ret)
30 def gen_args_(args):
31 ret = []
32 for arg in range(0, args):
33 ret.append("a%d_"%(arg))
34 return ", ".join(ret)
36 def gen_init(args, r = False, member = False):
37 if member:
38 ret = ["o_(o)"]
39 else:
40 ret = []
41 ret.append("m_(m)")
43 if r:
44 ret.append("r_(r)")
46 for arg in range(0, args):
47 ret.append("a%d_(a%d)"%(arg, arg))
48 return ", ".join(ret)
50 def gen_typenames(args, member):
51 if member:
52 ret = ["typename C"]
53 else:
54 ret = []
55 ret.append("typename M")
57 for arg in range(0, args):
58 ret.append("typename A%d"%(arg))
59 return ", ".join(ret)
61 def gen_types(args, member):
62 if member:
63 ret = ["C"]
64 else:
65 ret = []
66 ret.append("M")
67 for arg in range(0, args):
68 ret.append("A%d"%(arg))
69 return ", ".join(ret)
72 def generate_class_template(args, ret = False, member = True):
73 print "// %d arguments --"%args
74 if member:
75 nm = "m"
76 else:
77 nm = "nm"
79 if not ret:
80 print "template<"+ gen_typenames(args, member) + "> class runnable_args_%s_%d : public runnable_args_base {"%(nm, args)
81 else:
82 print "template<"+ gen_typenames(args, member) + ", typename R> class runnable_args_%s_%d_ret : public runnable_args_base {"%(nm, args)
84 print " public:"
86 if not ret:
87 print " runnable_args_%s_%d("%(nm, args) + gen_args_type(args, member) + ") :"
88 print " " + gen_init(args, False, member) + " {}"
89 else:
90 print " runnable_args_%s_%d_ret("%(nm, args) + gen_args_type(args, member) + ", R *r) :"
91 print " " + gen_init(args, True, member) + " {}"
92 print " virtual bool returns_value() const { return true; }"
93 print
94 print " NS_IMETHOD Run() {"
95 if ret:
96 print " *r_ =",
97 else:
98 print " ",
99 if member:
100 print "((*o_).*m_)(" + gen_args_(args) + ");"
101 else:
102 print "m_(" + gen_args_(args) + ");"
104 print " return NS_OK;"
105 print " }"
106 print
107 print " private:"
108 if member:
109 print " C o_;"
110 print " M m_;"
111 if ret:
112 print " R* r_;"
113 for arg in range(0, args):
114 print " A%d a%d_;"%(arg, arg)
115 print "};"
116 print
117 print
118 print
120 def generate_function_template(args, member):
121 if member:
122 nm = "m"
123 NM = "";
124 else:
125 nm = "nm"
126 NM = "NM";
128 print "// %d arguments --"%args
129 print "template<" + gen_typenames(args, member) + ">"
130 print "runnable_args_%s_%d<"%(nm, args) + gen_types(args, member) + ">* WrapRunnable%s("%NM + gen_args_type(args, member) + ") {"
131 print " return new runnable_args_%s_%d<"%(nm, args) + gen_types(args, member) + ">"
132 print " (" + gen_args(args, member) + ");"
133 print "}"
134 print
136 def generate_function_template_ret(args, member):
137 if member:
138 nm = "m"
139 NM = "";
140 else:
141 nm = "nm"
142 NM = "NM";
143 print "// %d arguments --"%args
144 print "template<" + gen_typenames(args, member) + ", typename R>"
145 print "runnable_args_%s_%d_ret<"%(nm, args) + gen_types(args, member) + ", R>* WrapRunnable%sRet("%NM + gen_args_type(args, member) + ", R* r) {"
146 print " return new runnable_args_%s_%d_ret<"%(nm, args) + gen_types(args, member) + ", R>"
147 print " (" + gen_args(args, member) + ", r);"
148 print "}"
149 print
152 print boilerplate
153 print
155 for num_args in range (0, MAX_ARGS):
156 generate_class_template(num_args, False, False)
157 generate_class_template(num_args, True, False)
158 generate_class_template(num_args, False, True)
159 generate_class_template(num_args, True, True)
162 print
163 print
164 print
166 for num_args in range(0, MAX_ARGS):
167 generate_function_template(num_args, False)
168 generate_function_template_ret(num_args, False)
169 generate_function_template(num_args, True)
170 generate_function_template_ret(num_args, True)
