class Simcall:
- simcalls_body = None
simcalls_pre = None
def __init__(self, name, handler, res, args, call_kind):
self.call_kind = call_kind
def check(self):
- # libsmx.c simcall_BODY_
- if self.simcalls_body is None:
- f = open('libsmx.cpp')
- self.simcalls_body = set(re.findall(r'simcall_BODY_(.*?)\(', f.read()))
- f.close()
- if self.name not in self.simcalls_body:
- print('# ERROR: No function calling simcall_BODY_%s' % self.name)
- print('# Add something like this to libsmx.c:')
- print('%s simcall_%s(%s)' % (self.res.rettype(), self.name, ', '.
- join('%s %s' % (arg.rettype(), arg.name) for arg in self.args)))
- print('{')
- print(' return simcall_BODY_%s(%s);' % (self.name, "..."))
- print('}')
- return False
-
# smx_*.c void simcall_HANDLER_host_on(smx_simcall_t simcall,
# smx_host_t h)
if self.simcalls_pre is None:
return False
return True
- def enum(self):
- return ' %s,' % (self.name.upper())
-
def string(self):
return ' "Simcall::%s",' % self.name.upper()
def case(self):
res = []
indent = ' '
- args = ["simgrid::simix::unmarshal<%s>(simcall_.args_[%d])" % (arg.rettype(), i)
- for i, arg in enumerate(self.args)]
+ args = ["simcall_.code_"]
res.append(indent + 'case Simcall::%s:' % (self.name.upper()))
if self.need_handler:
call = "simcall_HANDLER_%s(&simcall_%s%s)" % (self.name,
', '.join(args))
else:
call = "SIMIX_%s(%s)" % (self.name, ', '.join(args))
- if self.call_kind == 'Func':
- res.append(indent + " simgrid::simix::marshal<%s>(simcall_.result_, %s);" % (self.res.rettype(), call))
- else:
- res.append(indent + " " + call + ";")
+ res.append(indent + " " + call + ";")
if self.call_kind != 'Blck':
res.append(indent + ' simcall_answer();')
res.append(indent + ' break;')
res.append('')
return '\n'.join(res)
- def body(self):
- res = ['']
- res.append(
- 'inline static %s simcall_BODY_%s(%s)' % (self.res.rettype(),
- self.name,
- ', '.join('%s %s' % (arg.rettype(), arg.name) for arg in self.args)))
- res.append('{')
- res.append(' if (false) /* Go to that function to follow the code flow through the simcall barrier */')
- if self.need_handler:
- res.append(' simcall_HANDLER_%s(%s);' % (self.name,
- ', '.join(["&simgrid::kernel::actor::ActorImpl::self()->simcall_"] + [arg.name for arg in self.args])))
- else:
- res.append(' SIMIX_%s(%s);' % (self.name,
- ', '.join(arg.name for arg in self.args)))
- res.append(' return simcall<%s%s>(Simcall::%s%s);' % (
- self.res.rettype(),
- "".join([", " + arg.rettype() for i, arg in enumerate(self.args)]),
- self.name.upper(),
- "".join([", " + arg.name for i, arg in enumerate(self.args)])
- ))
- res.append('}')
- return '\n'.join(res)
-
def handler_prototype(self):
if self.need_handler:
- return "XBT_PRIVATE %s simcall_HANDLER_%s(smx_simcall_t simcall%s);" % (self.res.rettype() if self.call_kind == 'Func' else 'void',
- self.name,
+ return "XBT_PRIVATE void simcall_HANDLER_%s(smx_simcall_t simcall%s);" % (self.name,
''.join(', %s %s' % (arg.rettype(), arg.name)
for i, arg in enumerate(self.args)))
return ""
t = t.strip()
n = n.strip()
sargs.append(Arg(n, t))
- if ret == "void":
- ans = "Proc"
- else:
- ans = "Func"
+ if ret != "void":
+ raise Exception ("Func simcalls (ie, returning a value) not supported anymore")
+ ans = 'Proc'
handler = True
if attrs:
attrs = attrs[2:-2]
print("Some checks fail!")
sys.exit(1)
- #
- # popping_enum.hpp
- #
- fd = header("popping_enum.hpp")
- fd.write('namespace simgrid {\n')
- fd.write('namespace simix {\n')
- fd.write('/**\n')
- fd.write(' * @brief All possible simcalls.\n')
- fd.write(' */\n')
- fd.write('enum class Simcall {\n')
- fd.write(' NONE,\n')
-
- handle(fd, Simcall.enum, simcalls, simcalls_dict)
-
- fd.write('};\n')
- fd.write('\n')
- fd.write('constexpr int NUM_SIMCALLS = ' + str(1 + len(simcalls)) + ';\n')
- fd.write('} // namespace simix\n')
- fd.write('} // namespace simgrid\n')
- fd.close()
-
- #
- # popping_generated.cpp
- #
-
- fd = header("popping_generated.cpp")
-
- fd.write('#include <simgrid/config.h>\n')
- fd.write('#include <simgrid/host.h>\n')
- fd.write('#include <xbt/base.h>\n')
- fd.write('#if SIMGRID_HAVE_MC\n')
- fd.write('#include "src/mc/mc_forward.hpp"\n')
- fd.write('#endif\n')
- fd.write('#include "src/kernel/activity/ConditionVariableImpl.hpp"\n')
- fd.write('#include "src/kernel/actor/SimcallObserver.hpp"\n')
- fd.write('#include "src/kernel/context/Context.hpp"\n')
-
- fd.write('\n')
- fd.write('XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix);\n\n')
-
- fd.write('using simgrid::simix::Simcall;')
- fd.write('\n')
- fd.write('/** @brief Simcalls\' names (generated from src/simix/simcalls.in) */\n')
- fd.write('constexpr std::array<const char*, simgrid::simix::NUM_SIMCALLS> simcall_names{{\n')
-
- fd.write(' "Simcall::NONE",\n')
- handle(fd, Simcall.string, simcalls, simcalls_dict)
-
- fd.write('}};\n\n')
-
- fd.write('/** @private\n')
- fd.write(' * @brief (in kernel mode) unpack the simcall and activate the handler\n')
- fd.write(' *\n')
- fd.write(' * This function is generated from src/simix/simcalls.in\n')
- fd.write(' */\n')
- fd.write('void simgrid::kernel::actor::ActorImpl::simcall_handle(int times_considered)\n')
- fd.write('{\n')
- fd.write(' XBT_DEBUG("Handling simcall %p: %s", &simcall_, SIMIX_simcall_name(simcall_));\n')
- fd.write(' if (simcall_.observer_ != nullptr)\n')
- fd.write(' simcall_.observer_->prepare(times_considered);\n')
-
- fd.write(' if (context_->wannadie())\n')
- fd.write(' return;\n')
- fd.write(' switch (simcall_.call_) {\n')
-
- handle(fd, Simcall.case, simcalls, simcalls_dict)
-
- fd.write(' case Simcall::NONE:\n')
- fd.write(' throw std::invalid_argument(simgrid::xbt::string_printf("Asked to do the noop syscall on %s@%s",\n')
- fd.write(' get_cname(),\n')
- fd.write(' sg_host_get_name(get_host())));\n')
- fd.write(' default:\n')
- fd.write(' THROW_IMPOSSIBLE;\n')
- fd.write(' }\n')
- fd.write('}\n')
-
- fd.close()
-
- #
- # popping_bodies.cpp
- #
- fd = header('popping_bodies.cpp')
- fd.write('#include "src/kernel/EngineImpl.hpp"\n')
- fd.write('#include "src/kernel/actor/ActorImpl.hpp"\n')
- fd.write('#include "src/mc/mc_forward.hpp"\n')
- fd.write('#include "xbt/ex.h"\n')
- fd.write('#include <functional>\n')
- fd.write('#include <simgrid/simix.hpp>\n')
- fd.write('#include <xbt/log.h>\n')
-
- fd.write("/** @cond */ // Please Doxygen, don't look at this\n")
- fd.write('''
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix);
-
-using simgrid::simix::Simcall;
-
-template<class R, class... T>
-inline static R simcall(Simcall call, T const&... t)
-{
- auto self = simgrid::kernel::actor::ActorImpl::self();
- simgrid::simix::marshal(&self->simcall_, call, t...);
- if (not simgrid::kernel::EngineImpl::get_instance()->is_maestro(self)) {
- XBT_DEBUG("Yield process '%s' on simcall %s", self->get_cname(), SIMIX_simcall_name(self->simcall_));
- self->yield();
- } else {
- self->simcall_handle(0);
- }
- return simgrid::simix::unmarshal<R>(self->simcall_.result_);
-}
-''')
- handle(fd, Simcall.body, simcalls, simcalls_dict)
- fd.write("/** @endcond */\n")
- fd.close()
if __name__ == '__main__':
main()
