#include "thr_pool.h"
#include "marshall.h"
+#include "marshall_wrap.h"
#include "connection.h"
+namespace rpc {
+ static constexpr milliseconds to_max{12000};
+ static constexpr milliseconds to_min{100};
+}
+
class rpc_const {
public:
static const unsigned int bind = 1; // handler number reserved for bind
// manages a xid space per destination socket
// threaded: multiple threads can be sending RPCs,
class rpcc : public chanmgr {
-
private:
//manages per rpc info
struct caller {
- caller(int _xid, unmarshall *_un) : xid(_xid), un(_un) {}
+ caller(int _xid, string *_rep) : xid(_xid), rep(_rep) {}
int xid;
- unmarshall *un;
+ string *rep;
int intret;
bool done = false;
mutex m;
list<int> xid_rep_window_;
struct request {
- request() { clear(); }
void clear() { buf.clear(); xid = -1; }
bool isvalid() { return xid != -1; }
string buf;
- int xid;
+ int xid = -1;
};
- struct request dup_req_;
+ request dup_req_;
int xid_rep_done_;
+
+ int call1(proc_t proc, marshall &req, string &rep, milliseconds to);
+
+ template<class R>
+ int call_m(proc_t proc, marshall &req, R & r, milliseconds to);
public:
rpcc(const string & d, bool retrans=true);
~rpcc();
- struct TO {
- int to;
- };
- static const TO to_max;
- static const TO to_min;
- static TO to(int x) { TO t; t.to = x; return t;}
-
unsigned int id() { return clt_nonce_; }
- int bind(TO to = to_max);
+ int bind(milliseconds to = rpc::to_max);
void set_reachable(bool r) { reachable_ = r; }
void cancel();
- int islossy() { return lossytest_ > 0; }
-
- int call1(proc_t proc,
- marshall &req, unmarshall &rep, TO to);
-
- bool got_pdu(connection *c, char *b, size_t sz);
-
- template<class R>
- int call_m(proc_t proc, marshall &req, R & r, TO to);
+ bool got_pdu(connection *c, const string & b);
template<class R, typename ...Args>
inline int call(proc_t proc, R & r, const Args&... args);
template<class R, typename ...Args>
- inline int call_timeout(proc_t proc, TO to, R & r, const Args&... args);
+ inline int call_timeout(proc_t proc, milliseconds to, R & r, const Args&... args);
};
template<class R> int
-rpcc::call_m(proc_t proc, marshall &req, R & r, TO to)
+rpcc::call_m(proc_t proc, marshall &req, R & r, milliseconds to)
{
- unmarshall u;
- int intret = call1(proc, req, u, to);
+ string rep;
+ int intret = call1(proc, req, rep, to);
+ unmarshall u(rep, true);
if (intret < 0) return intret;
u >> r;
if (u.okdone() != true) {
template<class R, typename... Args> inline int
rpcc::call(proc_t proc, R & r, const Args&... args)
{
- return call_timeout(proc, rpcc::to_max, r, args...);
+ return call_timeout(proc, rpc::to_max, r, args...);
}
template<class R, typename... Args> inline int
-rpcc::call_timeout(proc_t proc, const rpcc::TO to, R & r, const Args&... args)
+rpcc::call_timeout(proc_t proc, const milliseconds to, R & r, const Args&... args)
{
marshall m{args...};
return call_m(proc, m, r, to);
}
-bool operator<(const sockaddr_in &a, const sockaddr_in &b);
-
// rpc server endpoint.
class rpcs : public chanmgr {
// has been sent; in that case buf points to a copy of the reply,
// and sz holds the size of the reply.
struct reply_t {
- reply_t (int _xid) {
- xid = _xid;
- cb_present = false;
- buf = NULL;
- sz = 0;
- }
- reply_t (int _xid, char *_buf, size_t _sz) {
- xid = _xid;
- cb_present = true;
- buf = _buf;
- sz = _sz;
- }
+ reply_t (int _xid) : xid(_xid), cb_present(false) {}
+ reply_t (int _xid, const string & _buf) : xid(_xid), cb_present(true), buf(_buf) {}
int xid;
bool cb_present; // whether the reply buffer is valid
- char *buf; // the reply buffer
- size_t sz; // the size of reply buffer
+ string buf; // the reply buffer
};
- unsigned int port_;
+ in_port_t port_;
unsigned int nonce_;
// provide at most once semantics by maintaining a window of replies
map<unsigned int, list<reply_t> > reply_window_;
void free_reply_window(void);
- void add_reply(unsigned int clt_nonce, int xid, char *b, size_t sz);
+ void add_reply(unsigned int clt_nonce, int xid, const string & b);
rpcstate_t checkduplicate_and_update(unsigned int clt_nonce,
- int xid, int rep_xid,
- char **b, size_t *sz);
+ int xid, int rep_xid, string & b);
void updatestat(proc_t proc);
size_t curr_counts_;
map<proc_t, size_t> counts_;
- int lossytest_;
bool reachable_;
// map proc # to function
mutex procs_m_; // protect insert/delete to procs[]
mutex count_m_; //protect modification of counts
mutex reply_window_m_; // protect reply window et al
- mutex conss_m_; // protect conns_
+ mutex conns_m_; // protect conns_
protected:
struct djob_t {
- djob_t (connection *c, char *b, size_t bsz):buf(b),sz(bsz),conn(c) {}
- char *buf;
- size_t sz;
connection *conn;
+ string buf;
};
void dispatch(djob_t *);
void reg1(proc_t proc, handler *);
ThrPool* dispatchpool_;
- tcpsconn* listener_;
+ tcpsconn *listener_;
public:
- rpcs(unsigned int port, size_t counts=0);
+ rpcs(in_port_t port, size_t counts=0);
~rpcs();
- inline unsigned int port() { return listener_->port(); }
+ inline in_port_t port() { return listener_->port(); }
//RPC handler for clients binding
int rpcbind(unsigned int &r, int a);
void set_reachable(bool r) { reachable_ = r; }
- bool got_pdu(connection *c, char *b, size_t sz);
+ bool got_pdu(connection *c, const string & b);
- template<class F, class C=void> void reg(proc_t proc, F f, C *c=nullptr);
-};
+ struct ReturnOnFailure {
+ static inline int unmarshall_args_failure() {
+ return rpc_const::unmarshal_args_failure;
+ }
+ };
-struct ReturnOnFailure {
- static inline int unmarshall_args_failure() {
- return rpc_const::unmarshal_args_failure;
+ template<class F, class C=void> void reg(proc_t proc, F f, C *c=nullptr) {
+ reg1(proc, marshalled_func<F, ReturnOnFailure>::wrap(f, c));
}
};
-template<class F, class C> void rpcs::reg(proc_t proc, F f, C *c) {
- reg1(proc, marshalled_func<F, ReturnOnFailure>::wrap(f, c));
-}
-
-sockaddr_in make_sockaddr(const string &hostandport);
-sockaddr_in make_sockaddr(const string &host, const string &port);
-
#endif
projects / invirt/third/libt4.git / blobdiff