2 # -*- coding: utf-8 -*-
4 # Copyright (c) 2014. The SimGrid Team. All rights reserved.
6 # This program is free software; you can redistribute it and/or modify it
7 # under the terms of the license (GNU LGPL) which comes with this package.
11 types = [('TCHAR', 'char', 'c')
12 ,('TSTRING', 'const char*', 'cc')
14 ,('TLONG', 'long', 'l')
15 ,('TUCHAR', 'unsigned char', 'uc')
16 ,('TUSHORT', 'unsigned short', 'us')
17 ,('TUINT', 'unsigned int', 'ui')
18 ,('TULONG', 'unsigned long', 'ul')
19 ,('TFLOAT', 'float', 'f')
20 ,('TDOUBLE', 'double', 'd')
21 ,('TDPTR', 'void*', 'dp')
22 ,('TFPTR', 'FPtr', 'fp')
23 ,('TCPTR', 'const void*', 'cp')
24 ,('TSIZE', 'size_t', 'sz')
25 ,('TSGSIZE', 'sg_size_t', 'sgsz')
26 ,('TSGOFF', 'sg_offset_t', 'sgoff')
27 ,('TVOID', 'void', '')
28 ,('TDSPEC', 'void*', 'dp')
29 ,('TFSPEC', 'FPtr', 'fp')]
32 simcall_types = {k:v for _,k,v in types}
33 def __init__(self, name, type, casted=None):
37 assert type in self.simcall_types, '%s not in (%s)'%(type, ', '.join(self.simcall_types.keys()))
40 return self.simcall_types[self.type]
43 return '%s'%self.casted if self.casted else self.type
46 return '(%s)'%self.casted if self.casted else ''
48 class Simcall(object):
51 def __init__(self, name, res, args, has_answer=True):
55 self.has_answer = has_answer
58 # libsmx.c simcall_BODY_
59 if self.simcalls_BODY is None:
61 self.simcalls_BODY = set(re.findall('simcall_BODY_(.*?)\(', f.read()))
63 if self.name not in self.simcalls_BODY:
64 print '# ERROR: No function calling simcall_BODY_%s'%self.name
65 print '# Add something like this to libsmx.c:'
66 print '%s simcall_%s(%s) {'%(self.res.ret() ,self.name ,', '.join('%s %s'%(arg.ret(), arg.name) for arg in self.args))
67 print ' return simcall_BODY_%s(%s);'%(self.name)
71 # smx_*.c void simcall_HANDLER_host_on(smx_simcall_t simcall, smx_host_t h)
72 if self.simcalls_PRE is None:
73 self.simcalls_PRE = set()
74 for fn in glob.glob('smx_*') + glob.glob('../mc/*'):
76 self.simcalls_PRE |= set(re.findall('simcall_HANDLER_(.*?)\(', f.read()))
78 if self.name not in self.simcalls_PRE:
79 print '# ERROR: No function called simcall_HANDLER_%s'%self.name
80 print '# Add something like this to the relevant C file (like smx_io.c if it\'s an IO call):'
81 print '%s simcall_HANDLER_%s(smx_simcall_t simcall%s) {'%(self.res.ret()
83 ,''.join(', %s %s'%(arg.ret(), arg.name)
84 for arg in self.args))
85 print ' // Your code handling the simcall'
91 return ' SIMCALL_%s,'%(self.name.upper())
94 return '[SIMCALL_%s] = "SIMCALL_%s",'%(self.name.upper(), self.name.upper())
98 for i in range(len(self.args)):
99 res.append(self.arg_getter(i))
100 res.append(self.arg_setter(i))
101 if self.res.type != 'void':
102 res.append('static inline %s simcall_%s__get__result(smx_simcall_t simcall){'%(self.res.ret(), self.name))
103 res.append(' return %s simcall->result.%s;'%(self.res.cast(), self.res.field()))
105 res.append('static inline void simcall_%s__set__result(smx_simcall_t simcall, %s result){'%(self.name, self.res.type,))
106 res.append(' simcall->result.%s = result;'%(self.res.field()))
108 return '\n'.join(res)
110 def arg_getter(self, i):
113 static inline %s simcall_%s__get__%s(smx_simcall_t simcall){
114 return %s simcall->args[%i].%s;
115 }'''%(arg.ret(), self.name, arg.name, arg.cast(), i, arg.field())
117 def arg_setter(self, i):
120 static inline void simcall_%s__set__%s(smx_simcall_t simcall, %s arg){
121 simcall->args[%i].%s = arg;
122 }'''%(self.name, arg.name, arg.type, i, arg.field())
125 return '''case SIMCALL_%s:
126 %ssimcall_HANDLER_%s(simcall %s);
128 '''%(self.name.upper(),
129 'simcall->result.%s = '%self.res.field() if self.res.type != 'void' and self.has_answer else ' ',
131 ''.join(', %s simcall->args[%d].%s'%(arg.cast(), i, arg.field())
132 for i, arg in enumerate(self.args)),
133 'SIMIX_simcall_answer(simcall);\n ' if self.has_answer else ' ')
137 inline static %s simcall_BODY_%s(%s) {
138 smx_process_t self = SIMIX_process_self();
140 /* Go to that function to follow the code flow through the simcall barrier */
141 if (0) simcall_HANDLER_%s(%s);
142 /* end of the guide intended to the poor programmer wanting to go from MSG to Surf */
144 self->simcall.call = SIMCALL_%s;
145 memset(&self->simcall.result, 0, sizeof(self->simcall.result));
146 memset(self->simcall.args, 0, sizeof(self->simcall.args));
148 if (self != simix_global->maestro_process) {
149 XBT_DEBUG("Yield process '%%s' on simcall %%s (%%d)", self->name,
150 SIMIX_simcall_name(self->simcall.call), (int)self->simcall.call);
151 SIMIX_process_yield(self);
153 SIMIX_simcall_handle(&self->simcall, 0);
158 ,', '.join('%s %s'%(arg.ret(), arg.name)
159 for arg in self.args)
161 ,', '.join(["&self->simcall"]+ [arg.name for arg in self.args])
163 ,'\n'.join(' self->simcall.args[%d].%s = (%s) %s;'%(i, arg.field(), arg.type, arg.name)
164 for i, arg in enumerate(self.args))
165 ,'' if self.res.type == 'void' else 'return self->simcall.result.%s;'%self.res.field())
170 simcalls_guarded = {}
171 for line in open(fn).read().split('\n'):
172 if line.startswith('##'):
174 simcalls_guarded[re.search(r'## *(.*)', line).group(1)] = resdi
175 if line.startswith('#') or not line:
177 match = re.match(r'(\S*?) *(\S*?) *\((.*?)(?:, *(.*?))?\) *(.*)', line)
179 name, ans, rest, resc, args = match.groups()
181 for n,t,c in re.findall(r'\((.*?), *(.*?)(?:, *(.*?))?\)', args):
182 sargs.append(Arg(n,t,c))
183 sim = Simcall(name, Arg('result', rest, resc), sargs, ans == 'True')
188 return simcalls, simcalls_guarded
192 fd.write('/**********************************************************************/\n')
193 fd.write('/* File generated by src/simix/simcalls.py from src/simix/simcalls.in */\n')
195 fd.write('/* DO NOT EVER CHANGE THIS FILE */\n')
197 fd.write('/* change simcalls specification in src/simix/simcalls.in */\n')
198 fd.write('/**********************************************************************/\n\n')
200 fd.write(' * Note that the name comes from http://en.wikipedia.org/wiki/Popping\n')
201 fd.write(' * Indeed, the control flow is doing a strange dance in there.\n')
203 fd.write(' * That\'s not about http://en.wikipedia.org/wiki/Poop, despite the odor :)\n')
207 def handle(fd,func, simcalls, guarded_simcalls):
208 fd.write('\n'.join(func(simcall) for simcall in simcalls))
209 for guard, list in guarded_simcalls.items():
210 fd.write('\n#ifdef %s\n'%(guard))
211 fd.write('\n'.join(func(simcall) for simcall in list))
212 fd.write('\n#endif\n')
214 if __name__=='__main__':
216 simcalls, simcalls_dict = parse('simcalls.in')
219 ok &= all(map(Simcall.check, simcalls))
220 for k,v in simcalls_dict.items():
221 ok &= all(map(Simcall.check, v))
222 # FIXME: we should not hide it
224 # print ("Some checks fail!")
228 ### smx_popping_accessors.c
230 fd = header('popping_accessors.h')
231 handle(fd, Simcall.accessors, simcalls, simcalls_dict)
235 ### smx_popping_enum.c
237 fd = header("popping_enum.h")
239 fd.write(' * @brief All possible simcalls.\n')
241 fd.write('typedef enum {\n')
242 fd.write(' SIMCALL_NONE,\n')
244 handle(fd, Simcall.enum, simcalls, simcalls_dict)
246 fd.write(' NUM_SIMCALLS\n')
247 fd.write('} e_smx_simcall_t;\n')
251 ### smx_popping_generated.c
254 fd = header("popping_generated.c")
256 fd.write('#include "smx_private.h"\n');
257 fd.write('#ifdef HAVE_MC\n');
258 fd.write('#include "mc/mc_private.h"\n');
259 fd.write('#endif\n');
261 fd.write('XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_popping);\n\n');
263 fd.write('/** @brief Simcalls\' names (generated from src/simix/simcalls.in) */\n')
264 fd.write('const char* simcall_names[] = {\n')
266 handle(fd, Simcall.string, simcalls, simcalls_dict)
268 fd.write('[SIMCALL_NONE] = "NONE"\n')
273 fd.write(' * @brief (in kernel mode) unpack the simcall and activate the handler\n');
275 fd.write(' * This function is generated from src/simix/simcalls.in\n')
277 fd.write('void SIMIX_simcall_handle(smx_simcall_t simcall, int value) {\n');
278 fd.write(' XBT_DEBUG("Handling simcall %p: %s", simcall, SIMIX_simcall_name(simcall->call));\n');
279 fd.write(' SIMCALL_SET_MC_VALUE(simcall, value);\n');
280 fd.write(' if (simcall->issuer->context->iwannadie && simcall->call != SIMCALL_PROCESS_CLEANUP)\n');
281 fd.write(' return;\n');
282 fd.write(' switch (simcall->call) {\n');
284 handle(fd, Simcall.case, simcalls, simcalls_dict)
286 fd.write(' case NUM_SIMCALLS:\n');
287 fd.write(' break;\n');
288 fd.write(' case SIMCALL_NONE:\n');
289 fd.write(' THROWF(arg_error,0,"Asked to do the noop syscall on %s@%s",\n');
290 fd.write(' SIMIX_process_get_name(simcall->issuer),\n');
291 fd.write(' SIMIX_host_get_name(SIMIX_process_get_host(simcall->issuer))\n');
293 fd.write(' break;\n');
301 ### smx_popping_bodies.c
303 fd = header('popping_bodies.c')
304 fd.write('#include "smx_private.h"\n')
305 fd.write('#include "mc/mc_interface.h"\n')
306 fd.write('#include "xbt/ex.h"\n')
307 handle(fd, Simcall.body, simcalls, simcalls_dict)