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allow implementations to be notified when a dtor message is received

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This commit is contained in:
Chris Jones 2009-08-14 16:46:49 -05:00
parent f55e41544a
commit 77d8bb116e
1 changed files with 36 additions and 22 deletions
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58
ipc/ipdl/ipdl/lower.py
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@ -605,16 +605,27 @@ class GenerateProtocolActorHeader(Visitor):
if md.decl.type.isCtor():
meth.ret = objtype
else:
meth.params.insert(0, cxx.Decl(objtype, '__a'))
actordecl = cxx.Decl(objtype, '__a')
meth.params.insert(0, actordecl)
cls.addstmt(cxx.StmtDecl(meth))
elif self.receivesMessage(md):
if self.receivesMessage(md) and not md.decl.type.isCtor():
if md.decl.type.isRpc(): pfx = 'Answer'
else: pfx = 'Recv'
meth = deepcopy(md._cxx.method);
meth.pure = True
meth = deepcopy(md._cxx.method)
meth.name = pfx + meth.name
cls.addstmt(cxx.StmtDecl(meth))
if md.decl.type.isDtor():
# allow implementations to receive a notification
# of "RecvDtor()" if they override this do-nothing
# virtual method
meth.params.insert(0, actordecl)
meth.virtual = True
dummyimpl = cxx.MethodDefn(meth)
dummyimpl.addstmt(cxx.StmtReturn(cxx.ExprVar('NS_OK')))
cls.addstmt(dummyimpl)
else:
meth.pure = True
cls.addstmt(cxx.StmtDecl(meth))
cls.addstmt(cxx.Whitespace.NL)
cls.addstmt(cxx.Label('private'))
@ -1178,27 +1189,15 @@ class GenerateProtocolActorHeader(Visitor):
failif.ifb.addstmt(cxx.StmtReturn(cxx.ExprVar('MsgValueError')))
block.addstmt(failif)
calldtor = cxx.ExprCall(
cxx.ExprVar(md._cxx.method.name),
([ objvar ]
+ [ cxx.ExprVar(p.name) for p in md._cxx.params ]
+ [ cxx.ExprAddrOf(cxx.ExprVar(r.name)) for
r in md._cxx.returns ]))
failif = cxx.StmtIf(cxx.ExprCall(
cxx.ExprVar('NS_FAILED'), [ calldtor ]))
failif.ifb.addstmt(cxx.StmtReturn(cxx.ExprVar('MsgValueError')))
block.addstmt(failif)
block.addstmt(cxx.StmtExpr(
cxx.ExprCall(cxx.ExprVar('Unregister'), [ routevar ])))
block.addstmt(cxx.StmtExpr(
cxx.ExprAssn(routevar, cxx.ExprLiteral.ZERO)))
else:
# call the C++ handler hook for messages other than ctors
if not md.decl.type.isCtor():
callimpl = cxx.ExprCall(
cxx.ExprVar(pfx + md.decl.progname), [ ])
if md.decl.type.isDtor():
callimpl.args += [ objvar ]
callimpl.args += [ cxx.ExprVar(p.name) for p in md._cxx.params ]
callimpl.args += [ cxx.ExprAddrOf(cxx.ExprVar(r.name))
for r in md._cxx.returns ]
for r in md._cxx.returns ]
errhandle = cxx.StmtIf(cxx.ExprCall(
cxx.ExprVar('NS_FAILED'), [ callimpl ]))
errhandle.ifb.addstmt(cxx.StmtReturn(
@ -1224,6 +1223,21 @@ class GenerateProtocolActorHeader(Visitor):
cxx.ExprSelect(objvar, '->', 'mChannel'),
channelvar)))
block.addstmt(cxx.Whitespace.NL)
elif md.decl.type.isDtor():
calldtor = cxx.ExprCall(
cxx.ExprVar(md._cxx.method.name),
([ objvar ]
+ [ cxx.ExprVar(p.name) for p in md._cxx.params ]
+ [ cxx.ExprAddrOf(cxx.ExprVar(r.name)) for
r in md._cxx.returns ]))
failif = cxx.StmtIf(cxx.ExprCall(
cxx.ExprVar('NS_FAILED'), [ calldtor ]))
failif.ifb.addstmt(cxx.StmtReturn(cxx.ExprVar('MsgValueError')))
block.addstmt(failif)
block.addstmt(cxx.StmtExpr(
cxx.ExprCall(cxx.ExprVar('Unregister'), [ routevar ])))
block.addstmt(cxx.StmtExpr(
cxx.ExprAssn(routevar, cxx.ExprLiteral.ZERO)))
if md.decl.type.hasReply():
if not md.decl.type.hasReply():