return "Wrap" + interface.expr
+
+class ExpanderMixin:
+ '''Mixin class that provides a bunch of methods to expand C expressions
+ from the specifications.'''
+
+ __structs = None
+ __indices = None
+
+ def expand(self, expr):
+ # Expand a C expression, replacing certain variables
+ if not isinstance(expr, basestring):
+ return expr
+ variables = {}
+
+ if self.__structs is not None:
+ variables['self'] = '(%s)' % self.__structs[0]
+ if self.__indices is not None:
+ variables['i'] = self.__indices[0]
+
+ expandedExpr = expr.format(**variables)
+ if expandedExpr != expr and 0:
+ sys.stderr.write(" %r -> %r\n" % (expr, expandedExpr))
+ return expandedExpr
+
+ def visitMember(self, structInstance, member_type, *args, **kwargs):
+ self.__structs = (structInstance, self.__structs)
+ try:
+ return self.visit(member_type, *args, **kwargs)
+ finally:
+ _, self.__structs = self.__structs
+
+ def visitElement(self, element_index, element_type, *args, **kwargs):
+ self.__indices = (element_index, self.__indices)
+ try:
+ return self.visit(element_type, *args, **kwargs)
+ finally:
+ _, self.__indices = self.__indices
+
+
class ComplexValueSerializer(stdapi.OnceVisitor):
'''Type visitors which generates serialization functions for
complex types.
self.visit(const.type)
def visitStruct(self, struct):
- for type, name in struct.members:
- self.visit(type)
- print 'static void _write__%s(const %s &value) {' % (struct.tag, struct.expr)
- print ' static const char * members[%u] = {' % (len(struct.members),)
+ print 'static const char * _struct%s_members[%u] = {' % (struct.tag, len(struct.members))
for type, name, in struct.members:
- print ' "%s",' % (name,)
- print ' };'
- print ' static const trace::StructSig sig = {'
- print ' %u, "%s", %u, members' % (struct.id, struct.name, len(struct.members))
- print ' };'
- print ' trace::localWriter.beginStruct(&sig);'
- for type, name in struct.members:
- self.serializer.visit(type, 'value.%s' % (name,))
- print ' trace::localWriter.endStruct();'
- print '}'
+ print ' "%s",' % (name,)
+ print '};'
+ print 'static const trace::StructSig _struct%s_sig = {' % (struct.tag,)
+ print ' %u, "%s", %u, _struct%s_members' % (struct.id, struct.name, len(struct.members), struct.tag)
+ print '};'
print
def visitArray(self, array):
print
-class ValueSerializer(stdapi.Visitor):
+class ValueSerializer(stdapi.Visitor, ExpanderMixin):
'''Visitor which generates code to serialize any type.
Simple types are serialized inline here, whereas the serialization of
ComplexValueSerializer visitor above.
'''
+ def __init__(self):
+ #stdapi.Visitor.__init__(self)
+ self.indices = []
+ self.instances = []
+
def visitLiteral(self, literal, instance):
print ' trace::localWriter.write%s(%s);' % (literal.kind, instance)
def visitString(self, string, instance):
- if string.kind == 'String':
+ if not string.wide:
cast = 'const char *'
- elif string.kind == 'WString':
- cast = 'const wchar_t *'
+ suffix = 'String'
else:
- assert False
+ cast = 'const wchar_t *'
+ suffix = 'WString'
if cast != string.expr:
# reinterpret_cast is necessary for GLubyte * <=> char *
instance = 'reinterpret_cast<%s>(%s)' % (cast, instance)
length = ', %s' % string.length
else:
length = ''
- print ' trace::localWriter.write%s(%s%s);' % (string.kind, instance, length)
+ print ' trace::localWriter.write%s(%s%s);' % (suffix, instance, length)
def visitConst(self, const, instance):
self.visit(const.type, instance)
def visitStruct(self, struct, instance):
- print ' _write__%s(%s);' % (struct.tag, instance)
+ print ' trace::localWriter.beginStruct(&_struct%s_sig);' % (struct.tag,)
+ for type, name in struct.members:
+ self.visitMember(instance, type, '(%s).%s' % (instance, name,))
+ print ' trace::localWriter.endStruct();'
def visitArray(self, array, instance):
length = '_c' + array.type.tag
index = '_i' + array.type.tag
+ array_length = self.expand(array.length)
print ' if (%s) {' % instance
- print ' size_t %s = %s;' % (length, array.length)
+ print ' size_t %s = %s > 0 ? %s : 0;' % (length, array_length, array_length)
print ' trace::localWriter.beginArray(%s);' % length
print ' for (size_t %s = 0; %s < %s; ++%s) {' % (index, index, length, index)
print ' trace::localWriter.beginElement();'
- self.visit(array.type, '(%s)[%s]' % (instance, index))
+ self.visitElement(index, array.type, '(%s)[%s]' % (instance, index))
print ' trace::localWriter.endElement();'
print ' }'
print ' trace::localWriter.endArray();'
print ' }'
def visitBlob(self, blob, instance):
- print ' trace::localWriter.writeBlob(%s, %s);' % (instance, blob.size)
+ print ' trace::localWriter.writeBlob(%s, %s);' % (instance, self.expand(blob.size))
def visitEnum(self, enum, instance):
print ' trace::localWriter.writeEnum(&_enum%s_sig, %s);' % (enum.tag, instance)
self.needsWrapping = True
-class ValueWrapper(stdapi.Traverser):
+class ValueWrapper(stdapi.Traverser, ExpanderMixin):
'''Type visitor which will generate the code to wrap an instance.
Wrapping is necessary mostly for interfaces, however interface pointers can
def visitStruct(self, struct, instance):
for type, name in struct.members:
- self.visit(type, "(%s).%s" % (instance, name))
+ self.visitMember(instance, type, "(%s).%s" % (instance, name))
def visitArray(self, array, instance):
+ array_length = self.expand(array.length)
print " if (%s) {" % instance
- print " for (size_t _i = 0, _s = %s; _i < _s; ++_i) {" % array.length
- self.visit(array.type, instance + "[_i]")
+ print " for (size_t _i = 0, _s = %s; _i < _s; ++_i) {" % array_length
+ self.visitElement('_i', array.type, instance + "[_i]")
print " }"
print " }"
if isinstance(elem_type, stdapi.Interface):
self.visitInterfacePointer(elem_type, instance)
else:
- self.visitPointer(self, pointer, instance)
+ self.visitPointer(pointer, instance)
def visitInterface(self, interface, instance):
raise NotImplementedError
def visitArray(self, array, instance):
if self.allocated or isinstance(instance, stdapi.Interface):
return ValueWrapper.visitArray(self, array, instance)
+ array_length = self.expand(array.length)
elem_type = array.type.mutable()
- print " if (%s && %s) {" % (instance, array.length)
- print " %s * _t = static_cast<%s *>(alloca(%s * sizeof *_t));" % (elem_type, elem_type, array.length)
- print " for (size_t _i = 0, _s = %s; _i < _s; ++_i) {" % array.length
+ print " if (%s && %s) {" % (instance, array_length)
+ print " %s * _t = static_cast<%s *>(alloca(%s * sizeof *_t));" % (elem_type, elem_type, array_length)
+ print " for (size_t _i = 0, _s = %s; _i < _s; ++_i) {" % array_length
print " _t[_i] = %s[_i];" % instance
self.allocated = True
self.visit(array.type, "_t[_i]")
self.footer(api)
def header(self, api):
- pass
+ print '#ifdef _WIN32'
+ print '# include <malloc.h> // alloca'
+ print '# ifndef alloca'
+ print '# define alloca _alloca'
+ print '# endif'
+ print '#else'
+ print '# include <alloca.h> // alloca'
+ print '#endif'
+ print
+ print '#include "trace.hpp"'
+ print
def footer(self, api):
pass
def traceFunctionDecl(self, function):
# Per-function declarations
- if function.args:
- print 'static const char * _%s_args[%u] = {%s};' % (function.name, len(function.args), ', '.join(['"%s"' % arg.name for arg in function.args]))
- else:
- print 'static const char ** _%s_args = NULL;' % (function.name,)
- print 'static const trace::FunctionSig _%s_sig = {%u, "%s", %u, _%s_args};' % (function.name, function.id, function.name, len(function.args), function.name)
- print
+ if not function.internal:
+ if function.args:
+ print 'static const char * _%s_args[%u] = {%s};' % (function.name, len(function.args), ', '.join(['"%s"' % arg.name for arg in function.args]))
+ else:
+ print 'static const char ** _%s_args = NULL;' % (function.name,)
+ print 'static const trace::FunctionSig _%s_sig = {%u, "%s", %u, _%s_args};' % (function.name, function.id, function.name, len(function.args), function.name)
+ print
def isFunctionPublic(self, function):
return True
print function.prototype() + ' {'
if function.type is not stdapi.Void:
print ' %s _result;' % function.type
+
+ # No-op if tracing is disabled
+ print ' if (!trace::isTracingEnabled()) {'
+ Tracer.invokeFunction(self, function)
+ if function.type is not stdapi.Void:
+ print ' return _result;'
+ else:
+ print ' return;'
+ print ' }'
+
self.traceFunctionImplBody(function)
if function.type is not stdapi.Void:
- self.wrapRet(function, "_result")
print ' return _result;'
print '}'
print
def traceFunctionImplBody(self, function):
- print ' unsigned _call = trace::localWriter.beginEnter(&_%s_sig);' % (function.name,)
- for arg in function.args:
- if not arg.output:
- self.unwrapArg(function, arg)
- self.serializeArg(function, arg)
- print ' trace::localWriter.endEnter();'
+ if not function.internal:
+ print ' unsigned _call = trace::localWriter.beginEnter(&_%s_sig);' % (function.name,)
+ for arg in function.args:
+ if not arg.output:
+ self.unwrapArg(function, arg)
+ self.serializeArg(function, arg)
+ print ' trace::localWriter.endEnter();'
self.invokeFunction(function)
- print ' trace::localWriter.beginLeave(_call);'
- for arg in function.args:
- if arg.output:
- self.serializeArg(function, arg)
- self.wrapArg(function, arg)
- if function.type is not stdapi.Void:
- self.serializeRet(function, "_result")
- print ' trace::localWriter.endLeave();'
+ if not function.internal:
+ print ' trace::localWriter.beginLeave(_call);'
+ for arg in function.args:
+ if arg.output:
+ self.serializeArg(function, arg)
+ self.wrapArg(function, arg)
+ if function.type is not stdapi.Void:
+ self.serializeRet(function, "_result")
+ print ' trace::localWriter.endLeave();'
+ if function.type is not stdapi.Void:
+ self.wrapRet(function, "_result")
def invokeFunction(self, function, prefix='_', suffix=''):
if function.type is stdapi.Void:
for other_arg in function.args:
if not other_arg.output and other_arg.type is REFIID:
riid = other_arg
- if riid is not None and isinstance(arg.type, stdapi.Pointer):
- assert isinstance(arg.type.type, stdapi.ObjPointer)
- obj_type = arg.type.type.type
- assert obj_type is stdapi.Void
+ if riid is not None \
+ and isinstance(arg.type, stdapi.Pointer) \
+ and isinstance(arg.type.type, stdapi.ObjPointer):
self.wrapIid(function, riid, arg)
return
for method in interface.iterMethods():
print " " + method.prototype() + ";"
print
- self.declareWrapperInterfaceVariables(interface)
+ #print "private:"
+ for type, name, value in self.enumWrapperInterfaceVariables(interface):
+ print ' %s %s;' % (type, name)
print "};"
print
- def declareWrapperInterfaceVariables(self, interface):
- #print "private:"
- print " DWORD m_dwMagic;"
- print " %s * m_pInstance;" % (interface.name,)
+ def enumWrapperInterfaceVariables(self, interface):
+ return [
+ ("DWORD", "m_dwMagic", "0xd8365d6c"),
+ ("%s *" % interface.name, "m_pInstance", "pInstance"),
+ ]
def implementWrapperInterface(self, interface):
self.interface = interface
print '%s::%s(%s * pInstance) {' % (getWrapperInterfaceName(interface), getWrapperInterfaceName(interface), interface.name)
- print ' m_dwMagic = 0xd8365d6c;'
- print ' m_pInstance = pInstance;'
+ for type, name, value in self.enumWrapperInterfaceVariables(interface):
+ print ' %s = %s;' % (name, value)
print '}'
print
print '%s::~%s() {' % (getWrapperInterfaceName(interface), getWrapperInterfaceName(interface))
print
def implementWrapperInterfaceMethodBody(self, interface, base, method):
+ assert not method.internal
+
print ' static const char * _args[%u] = {%s};' % (len(method.args) + 1, ', '.join(['"this"'] + ['"%s"' % arg.name for arg in method.args]))
print ' static const trace::FunctionSig _sig = {%u, "%s", %u, _args};' % (method.id, interface.name + '::' + method.name, len(method.args) + 1)
+
+ print ' %s *_this = static_cast<%s *>(m_pInstance);' % (base, base)
+
print ' unsigned _call = trace::localWriter.beginEnter(&_sig);'
print ' trace::localWriter.beginArg(0);'
print ' trace::localWriter.writePointer((uintptr_t)m_pInstance);'
self.wrapArg(method, arg)
if method.type is not stdapi.Void:
- print ' trace::localWriter.beginReturn();'
- self.serializeValue(method.type, "_result")
- print ' trace::localWriter.endReturn();'
- self.wrapValue(method.type, '_result')
+ self.serializeRet(method, '_result')
print ' trace::localWriter.endLeave();'
+ if method.type is not stdapi.Void:
+ self.wrapRet(method, '_result')
+
if method.name == 'Release':
assert method.type is not stdapi.Void
print ' if (!_result)'
print
def wrapIid(self, function, riid, out):
+ # Cast output arg to `void **` if necessary
+ out_name = out.name
+ obj_type = out.type.type.type
+ if not obj_type is stdapi.Void:
+ assert isinstance(obj_type, stdapi.Interface)
+ out_name = 'reinterpret_cast<void * *>(%s)' % out_name
+
print r' if (%s && *%s) {' % (out.name, out.name)
functionName = function.name
else_ = ''
if self.interface is not None:
functionName = self.interface.name + '::' + functionName
- print r' if (*%s == m_pInstance &&' % (out.name,)
+ print r' if (*%s == m_pInstance &&' % (out_name,)
print r' (%s)) {' % ' || '.join('%s == IID_%s' % (riid.name, iface.name) for iface in self.interface.iterBases())
- print r' *%s = this;' % (out.name,)
+ print r' *%s = this;' % (out_name,)
print r' }'
else_ = 'else '
print r' %s{' % else_
- print r' wrapIID("%s", %s, %s);' % (functionName, riid.name, out.name)
+ print r' wrapIID("%s", %s, %s);' % (functionName, riid.name, out_name)
print r' }'
print r' }'
result = ''
else:
result = '_result = '
- print ' %sstatic_cast<%s *>(m_pInstance)->%s(%s);' % (result, base, method.name, ', '.join([str(arg.name) for arg in method.args]))
+ print ' %s_this->%s(%s);' % (result, method.name, ', '.join([str(arg.name) for arg in method.args]))
def emit_memcpy(self, dest, src, length):
print ' unsigned _call = trace::localWriter.beginEnter(&trace::memcpy_sig);'
print ' trace::localWriter.endEnter();'
print ' trace::localWriter.beginLeave(_call);'
print ' trace::localWriter.endLeave();'
+
+ def fake_call(self, function, args):
+ print ' unsigned _fake_call = trace::localWriter.beginEnter(&_%s_sig);' % (function.name,)
+ for arg, instance in zip(function.args, args):
+ assert not arg.output
+ print ' trace::localWriter.beginArg(%u);' % (arg.index,)
+ self.serializeValue(arg.type, instance)
+ print ' trace::localWriter.endArg();'
+ print ' trace::localWriter.endEnter();'
+ print ' trace::localWriter.beginLeave(_fake_call);'
+ print ' trace::localWriter.endLeave();'
projects / apitrace / blobdiff