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base: count caps replied by a rpc function

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Issue #905
This commit is contained in:
Alexander Boettcher 2013-09-16 10:50:15 +02:00 committed by Norman Feske
parent 772616bf38
commit a6af6c80ab
11 changed files with 49 additions and 19 deletions
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4
base-codezero/src/base/ipc/ipc.cc
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@ -115,8 +115,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ } { }

2
base-fiasco/src/base/ipc/ipc.cc
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@ -152,7 +152,7 @@ void Ipc_client::_call()
Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *rcv_msg): Msgbuf_base *rcv_msg, unsigned short):
Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ } { }

4
base-foc/src/base/ipc/ipc.cc
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@ -291,8 +291,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { } : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { }

4
base-host/src/base/ipc/ipc.cc
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@ -52,8 +52,8 @@ Ipc_istream::~Ipc_istream() { }
void Ipc_client::_call() { } void Ipc_client::_call() { }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ } { }

4
base-hw/src/base/ipc.cc
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@ -134,8 +134,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { } : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { }

4
base-linux/src/base/ipc/ipc.cc
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@ -546,8 +546,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ {
_prepare_next_call(); _prepare_next_call();

4
base-nova/src/base/ipc/ipc.cc
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@ -183,8 +183,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short const rcv_caps)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ } { }

4
base-okl4/src/base/ipc/ipc.cc
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@ -203,8 +203,8 @@ void Ipc_client::_call()
} }
Ipc_client::Ipc_client(Native_capability const &srv, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *snd_msg, Msgbuf_base *rcv_msg) Msgbuf_base *rcv_msg, unsigned short)
: Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { } : Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) { }

2
base-pistachio/src/base/ipc/ipc.cc
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@ -219,7 +219,7 @@ void Ipc_client::_call()
Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg, Ipc_client::Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *rcv_msg) : Msgbuf_base *rcv_msg, unsigned short) :
Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0) Ipc_istream(rcv_msg), Ipc_ostream(srv, snd_msg), _result(0)
{ {
IPCDEBUG("Ipc_client constructed.\n"); IPCDEBUG("Ipc_client constructed.\n");

2
base/include/base/ipc.h
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@ -435,7 +435,7 @@ namespace Genode {
* Constructor * Constructor
*/ */
Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg, Ipc_client(Native_capability const &srv, Msgbuf_base *snd_msg,
Msgbuf_base *rcv_msg); Msgbuf_base *rcv_msg, unsigned short rcv_caps = ~0);
/** /**
* Operator that issues an IPC call * Operator that issues an IPC call

34
base/include/base/rpc_client.h
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@ -38,6 +38,35 @@ namespace Genode {
: Capability<RPC_INTERFACE>(cap) { } : Capability<RPC_INTERFACE>(cap) { }
}; };
/**
* Count capabilities of a RPC_FUNCTION which are out parameters.
*/
template <typename T> struct Cap_para_out { enum { Value = 0 }; };
template <typename T> struct Cap_para_out<Capability<T> *> { enum { Value = 1 }; };
template <typename T> struct Cap_para_out<Capability<T> &> { enum { Value = 1 }; };
template <> struct Cap_para_out<Native_capability *> { enum { Value = 1 }; };
template <> struct Cap_para_out<Native_capability &> { enum { Value = 1 }; };
template <typename T> struct Cap_return { enum { Value = 0 }; };
template <typename T> struct Cap_return<Capability<T> > { enum { Value = 1 }; };
template <typename T> struct Cap_return<Capability<T> *> { enum { Value = 1 }; };
template <typename T> struct Cap_return<Capability<T> &> { enum { Value = 1 }; };
template <> struct Cap_return<Native_capability> { enum { Value = 1 }; };
template <> struct Cap_return<Native_capability *> { enum { Value = 1 }; };
template <> struct Cap_return<Native_capability &> { enum { Value = 1 }; };
template <typename ARGS>
struct Rpc_caps_out {
enum { Value = Cap_para_out<typename ARGS::Head>::Value
+ Rpc_caps_out<typename ARGS::Tail>::Value }; };
template <>
struct Rpc_caps_out<Meta::Empty> { enum { Value = 0 }; };
template <typename RPC_FUNCTION>
struct Rpc_function_caps_out {
enum { Value = Rpc_caps_out<typename RPC_FUNCTION::Server_args>::Value +
Cap_return <typename RPC_FUNCTION::Ret_type>::Value}; };
/********************************************************* /*********************************************************
** Implementation of 'Capability:call' functions ** ** Implementation of 'Capability:call' functions **
@ -106,12 +135,13 @@ namespace Genode {
*/ */
enum { PROTOCOL_OVERHEAD = 4*sizeof(long), enum { PROTOCOL_OVERHEAD = 4*sizeof(long),
CALL_MSG_SIZE = Rpc_function_msg_size<IF, RPC_CALL>::Value, CALL_MSG_SIZE = Rpc_function_msg_size<IF, RPC_CALL>::Value,
REPLY_MSG_SIZE = Rpc_function_msg_size<IF, RPC_REPLY>::Value }; REPLY_MSG_SIZE = Rpc_function_msg_size<IF, RPC_REPLY>::Value,
CAP_BY_VALUE = Rpc_function_caps_out<IF>::Value };
Msgbuf<CALL_MSG_SIZE + PROTOCOL_OVERHEAD> call_buf; Msgbuf<CALL_MSG_SIZE + PROTOCOL_OVERHEAD> call_buf;
Msgbuf<REPLY_MSG_SIZE + PROTOCOL_OVERHEAD> reply_buf; Msgbuf<REPLY_MSG_SIZE + PROTOCOL_OVERHEAD> reply_buf;
Ipc_client ipc_client(*this, &call_buf, &reply_buf); Ipc_client ipc_client(*this, &call_buf, &reply_buf, CAP_BY_VALUE);
/* determine opcode of RPC function */ /* determine opcode of RPC function */
typedef typename RPC_INTERFACE::Rpc_functions Rpc_functions; typedef typename RPC_INTERFACE::Rpc_functions Rpc_functions;