From cb6e8a6831613006603c14337291174fa29d2f57 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期四, 16 十二月 2021 15:50:41 +0800
Subject: [PATCH] add interface
---
src/nng_wrap.cpp | 585 +++++++++------------------------------------------------
1 files changed, 99 insertions(+), 486 deletions(-)
diff --git a/src/nng_wrap.cpp b/src/nng_wrap.cpp
index 85c555e..1972e07 100644
--- a/src/nng_wrap.cpp
+++ b/src/nng_wrap.cpp
@@ -2,54 +2,15 @@
#include <string.h>
-#include <random>
#include <vector>
-#include <unordered_map>
-#include <unordered_set>
-#include <thread>
-#include <atomic>
-#include <deque>
-#include <mutex>
-#include <condition_variable>
-#include <functional>
-#include <chrono>
-#include <future>
+#include "common.h"
using namespace std;
-#include <unistd.h>
-
-#include <nng/nng.h>
-#include <nng/protocol/reqrep0/rep.h>
-#include <nng/supplemental/util/platform.h>
-
-#include "nng/compat/nanomsg/nn.h"
#include "nng/compat/nanomsg/reqrep.h"
#include "nng/compat/nanomsg/pubsub.h"
#include "nng/compat/nanomsg/survey.h"
namespace nng_wrap {
-
-// common function
-static int client_socket(const string& url, const int protocol, int family=AF_SP){
- int sock = nn_socket(family, protocol);
- if (sock < 0) return sock;
- int rc = nn_connect(sock, url.c_str());
- if (rc < 0) {
- nn_close(sock);
- return rc;
- }
- return sock;
-}
-
-static void remove_exist(const string& url){
- if (url.find("ipc://") == 0){
- string address(url);
- address = address.substr(6);
- if (access(address.c_str(), F_OK) == 0){
- remove(address.c_str());
- }
- }
-}
// static int server_socket(const string& url, const int protocol, int family=AF_SP){
// int sock = nn_socket(family, protocol);
@@ -62,6 +23,17 @@
// }
// return sock;
// }
+
+static int client_socket(const string& url, const int protocol, int family=AF_SP){
+ int sock = nn_socket(family, protocol);
+ if (sock < 0) return sock;
+ int rc = nn_connect(sock, url.c_str());
+ if (rc < 0) {
+ nn_close(sock);
+ return rc;
+ }
+ return sock;
+}
static void set_socket_timeout(int sock, const int to_ms){
nn_setsockopt(sock, NN_SOL_SOCKET, NN_SNDTIMEO, &to_ms, sizeof(to_ms));
@@ -106,17 +78,6 @@
*dest_len = src_len;
}
-static thread_local string verbose_info{};
-#ifndef PRNTVITAG
-#define TAG do{ verbose_info.clear(); \
- verbose_info=string("function [")+__FUNCTION__+string("]"); \
- }while(0)
-#define PRNTVITAG(msg) do{ \
- verbose_info+=string("-> (") + msg + string(")"); \
- }while(0)
-// #define TAG
-// #define PRNTVITAG(args)
-#endif
void get_last_error(int* ec, void** emsg, int* emsg_len){
*emsg = NULL;
*emsg_len = 0;
@@ -132,7 +93,6 @@
///////////////////////////////////////////////////////
// simple request waiting reply
-static constexpr int timeout_req_rep = 5162;
int simple_request(const std::string& url,
const void* in, const int in_len,
void** out, int *out_len, const int to_ms){
@@ -160,55 +120,12 @@
return true;
}
-///////////////////////////////////////////////////////////
-// base class
-#define DISABLE_COPY_AND_ASSIGN(className) \
- className(const className&)=delete; \
- className(className&&)=delete; \
- className& operator=(const className&)=delete; \
- className& operator=(className&&)=delete
-
-class _nn{
-public:
- DISABLE_COPY_AND_ASSIGN(_nn);
- _nn()=default;
- virtual ~_nn(){ if (socket_ > 0) nn_close(socket_); }
- int socket_{-1};
- string url_{};
-};
-
-///////////////////////////////////////////////
+/////////////////////////////////////////////////////
// publish
-class _ps : public _nn{
-public:
- struct psmsg{
- DISABLE_COPY_AND_ASSIGN(psmsg);
- psmsg()=delete;
- psmsg(const std::string& t, std::string&& m)
- :topic_(t),data_(std::move(m)){}
- std::string topic_{};
- std::string data_{};
- };
-public:
- DISABLE_COPY_AND_ASSIGN(_ps);
- _ps()=default;
- virtual ~_ps(){
- t_quit_.store(true, memory_order_relaxed);
- if (t_.joinable()) t_.join();
- }
-
- thread t_;
- atomic_bool t_quit_{false};
- deque<psmsg> msg_{};
- mutex mtx_msg_{};
- condition_variable cv_msg_{};
-};
-
-static _ps pub_;
-static int connect_to_center(const string& topic){
- if (pub_.socket_ > 0) return pub_.socket_;
- pub_.url_ = topic;
+static int pub_connect_to_center(const string& topic, _ps* pub){
+ if (pub->socket_ > 0) return pub->socket_;
+ pub->url_ = topic;
TAG;
int sock = client_socket(topic, NN_REQ);
@@ -217,29 +134,29 @@
return -1;
}
set_socket_timeout(sock, timeout_req_rep);
- pub_.socket_ = sock;
- pub_.t_ = thread([]{
- while (!pub_.t_quit_.load()) {
+ pub->socket_ = sock;
+ pub->t_ = thread([pub]{
+ while (!pub->t_quit_.load()) {
_ps::psmsg *msg{NULL};
{
- unique_lock<mutex> l{pub_.mtx_msg_};
- pub_.cv_msg_.wait(l, []{
- return !pub_.msg_.empty() || pub_.t_quit_.load();
+ unique_lock<mutex> l{pub->mtx_msg_};
+ pub->cv_msg_.wait(l, [pub]{
+ return !pub->msg_.empty() || pub->t_quit_.load();
});
- if(pub_.t_quit_.load()) break;
- msg = &pub_.msg_.front();
- if (msg->topic_.empty()) {pub_.msg_.pop_front(); continue;}
+ if(pub->t_quit_.load()) break;
+ msg = &pub->msg_.front();
+ if (msg->topic_.empty()) {pub->msg_.pop_front(); continue;}
}
string sndmsg(msg->topic_ + msg->data_);
- int rc = nn_send(pub_.socket_, sndmsg.data(), sndmsg.size(), 0);
+ int rc = nn_send(pub->socket_, sndmsg.data(), sndmsg.size(), 0);
if (rc == (int)sndmsg.size()){
char* tmp{};
- rc = nn_recv(pub_.socket_, &tmp, NN_MSG, 0);
+ rc = nn_recv(pub->socket_, &tmp, NN_MSG, 0);
if (rc > 0){
nn_freemsg(tmp);
printf("======>> publish topic %s data length %lu\n", msg->topic_.c_str(), msg->data_.size());
- lock_guard<mutex> l{pub_.mtx_msg_};
- pub_.msg_.pop_front();
+ lock_guard<mutex> l{pub->mtx_msg_};
+ pub->msg_.pop_front();
continue;
}else{
PRNTVITAG("publish req-rep thread nn_recv faild");
@@ -253,44 +170,38 @@
return sock;
}
-int publish(const std::string& topic, const void* data, const int data_len){
+int publish(const std::string& topic, const void* data, const int data_len, void* arg/*=NULL*/){
+ _ps* pub = (_ps*)arg;
+ if (!pub) pub = singleton<_ps>();
+
if (!data && data_len == 0){
// printf("======>> publish start url %s\n", topic.c_str());
- return connect_to_center(topic);
+ return pub_connect_to_center(topic, pub);
}
- if (pub_.socket_ < 0){
- connect_to_center(pub_.url_);
+ if (pub->socket_ < 0){
+ pub_connect_to_center(pub->url_, pub);
}
- if(pub_.socket_ < 0) {
+ if(pub->socket_ < 0) {
PRNTVITAG("publish socket_ < 0");
return -1;
}
// printf("======>> publish topic %s\n", topic.c_str());
- lock_guard<mutex> l{pub_.mtx_msg_};
- pub_.msg_.emplace_back(topic, string{(const char*)data, (const size_t)data_len});
- pub_.cv_msg_.notify_one();
- return pub_.msg_.size();
+ lock_guard<mutex> l{pub->mtx_msg_};
+ pub->msg_.emplace_back(topic, string{(const char*)data, (const size_t)data_len});
+ pub->cv_msg_.notify_one();
+ return pub->msg_.size();
}
///////////////////////////////////////////////
// subscribe
-class _ps_sub : public _ps{
-public:
- DISABLE_COPY_AND_ASSIGN(_ps_sub);
- _ps_sub()=default;
- ~_ps_sub()=default;
- unordered_set<string> topics_{};
- mutex mtx_topics_{};
- unordered_set<string> failed_topics_{};
- mutex mtx_failed_topics_{};
-};
+int subscribe_center(const std::string& url, void* arg/*=NULL*/){
+ _ps_sub* sub = (_ps_sub*)arg;
+ if (!sub) sub = singleton<_ps_sub>();
-static _ps_sub sub_;
-int subscribe_center(const std::string& url){
- if (sub_.socket_ > 0) return 0;
- sub_.url_ = url;
+ if (sub->socket_ > 0) return 0;
+ sub->url_ = url;
TAG;
int sock = client_socket(url, NN_SUB);
@@ -299,18 +210,18 @@
return -1;
}
// set_socket_timeout(sock, timeout_req_rep);
- sub_.socket_ = sock;
- sub_.t_ = thread([]{
- while (!sub_.t_quit_.load()) {
+ sub->socket_ = sock;
+ sub->t_ = thread([sub]{
+ while (!sub->t_quit_.load()) {
char* m;
- int m_len = nn_recv(sub_.socket_, &m, NN_MSG, NN_DONTWAIT);
+ int m_len = nn_recv(sub->socket_, &m, NN_MSG, NN_DONTWAIT);
if (m_len > 0){
string tmp_msg{m, (size_t)m_len};
nn_freemsg(m);
string topic{}, msg{};
{
- lock_guard<mutex> l{sub_.mtx_topics_};
- for(auto && i : sub_.topics_){
+ lock_guard<mutex> l{sub->mtx_topics_};
+ for(auto && i : sub->topics_){
if (tmp_msg.size() < i.size()) continue;
topic = tmp_msg.substr(0, i.size());
if (topic == i){
@@ -321,18 +232,18 @@
}
printf("======>> subscribe recv topic %s msg length %lu\n", topic.c_str(), msg.length());
if (!msg.empty()){
- lock_guard<mutex> l(sub_.mtx_msg_);
- sub_.msg_.emplace_back(topic, move(msg));
- sub_.cv_msg_.notify_all();
+ lock_guard<mutex> l(sub->mtx_msg_);
+ sub->msg_.emplace_back(topic, move(msg));
+ sub->cv_msg_.notify_all();
}
}else {
{
- lock_guard<mutex> l{sub_.mtx_failed_topics_};
- if (!sub_.failed_topics_.empty()){
- for(auto iter = sub_.failed_topics_.begin(); iter != sub_.failed_topics_.end();){
- if (nn_setsockopt(sub_.socket_, NN_SUB, NN_SUB_UNSUBSCRIBE, iter->c_str(), iter->length()) >= 0){
- iter = sub_.failed_topics_.erase(iter);
+ lock_guard<mutex> l{sub->mtx_failed_topics_};
+ if (!sub->failed_topics_.empty()){
+ for(auto iter = sub->failed_topics_.begin(); iter != sub->failed_topics_.end();){
+ if (nn_setsockopt(sub->socket_, NN_SUB, NN_SUB_UNSUBSCRIBE, iter->c_str(), iter->length()) >= 0){
+ iter = sub->failed_topics_.erase(iter);
}else{
iter++;
}
@@ -347,58 +258,66 @@
return 0;
}
-int subscribe_topic(const std::string& topic){
+int subscribe_topic(const std::string& topic, void* arg/*=NULL*/){
+ _ps_sub* sub = (_ps_sub*)arg;
+ if (!sub) sub = singleton<_ps_sub>();
+
TAG;
- if (sub_.socket_ < 0){
- subscribe_center(sub_.url_);
+ if (sub->socket_ < 0){
+ subscribe_center(sub->url_, sub);
}
- if (sub_.socket_ < 0) {
+ if (sub->socket_ < 0) {
PRNTVITAG("socket_ < 0");
return -1;
}
- auto ret = nn_setsockopt(sub_.socket_, NN_SUB, NN_SUB_SUBSCRIBE, topic.c_str(), topic.length());
+ auto ret = nn_setsockopt(sub->socket_, NN_SUB, NN_SUB_SUBSCRIBE, topic.c_str(), topic.length());
// printf("set NN_SUB_SUBSCRIBE topic %s ret %d\n", topic.c_str(), ret);
if (ret < 0){
PRNTVITAG("nn_setsockopt failed");
- lock_guard<mutex> l{sub_.mtx_failed_topics_};
- sub_.failed_topics_.insert(topic);
+ lock_guard<mutex> l{sub->mtx_failed_topics_};
+ sub->failed_topics_.insert(topic);
}
- lock_guard<mutex> l{sub_.mtx_topics_};
- sub_.topics_.insert(topic);
+ lock_guard<mutex> l{sub->mtx_topics_};
+ sub->topics_.insert(topic);
return 0;
}
-int unsubscribe_topic(const std::string& topic){
- lock_guard<mutex> l(sub_.mtx_topics_);
- auto iter = sub_.topics_.find(topic);
- if (iter != sub_.topics_.end()){
- nn_setsockopt(sub_.socket_, NN_SUB, NN_SUB_UNSUBSCRIBE, topic.c_str(), topic.length());
- sub_.topics_.erase(iter);
+int unsubscribe_topic(const std::string& topic, void* arg/*=NULL*/){
+ _ps_sub* sub = (_ps_sub*)arg;
+ if (!sub) sub = singleton<_ps_sub>();
+
+ lock_guard<mutex> l(sub->mtx_topics_);
+ auto iter = sub->topics_.find(topic);
+ if (iter != sub->topics_.end()){
+ nn_setsockopt(sub->socket_, NN_SUB, NN_SUB_UNSUBSCRIBE, topic.c_str(), topic.length());
+ sub->topics_.erase(iter);
}
return 0;
}
-int subscribe_read(std::string* topic, std::string* msg, const int to_ms){
+int subscribe_read(std::string* topic, std::string* msg, const int to_ms, void* arg/*=NULL*/){
+ _ps_sub* sub = (_ps_sub*)arg;
+ if (!sub) sub = singleton<_ps_sub>();
TAG;
int tm = to_ms > 0 ? to_ms : 30;
- unique_lock<mutex> l(sub_.mtx_msg_);
- auto status = sub_.cv_msg_.wait_for(l, chrono::milliseconds{tm}, []{
- return !sub_.msg_.empty();
+ unique_lock<mutex> l(sub->mtx_msg_);
+ auto status = sub->cv_msg_.wait_for(l, chrono::milliseconds{tm}, [sub]{
+ return !sub->msg_.empty();
});
if (!status){
PRNTVITAG("subscribe_read timeout");
return -1;
}
- const auto& tmp = sub_.msg_.front();
+ const auto& tmp = sub->msg_.front();
*topic = tmp.topic_;
*msg = tmp.data_;
- sub_.msg_.pop_front();
+ sub->msg_.pop_front();
return 0;
}
@@ -406,33 +325,21 @@
///////////////////////////////////////////////////////////
// survey respondent for heartbeat
-class _sv : public _nn{
-public:
- DISABLE_COPY_AND_ASSIGN(_sv);
- _sv()=default;
- ~_sv(){
- t_quit_.store(true, memory_order_relaxed);
- if (t_.joinable()) t_.join();
- }
+int respond_survey(const std::string& url, std::string&& fixed_msg, void* arg/*=NULL*/){
+ _sv* sv = (_sv*)arg;
+ if (!sv) sv = singleton<_sv>();
- thread t_;
- atomic_bool t_quit_{false};
- string fixed_msg_{};
-};
-
-static _sv survey_;
-int respond_survey(const std::string& url, std::string&& fixed_msg){
- survey_.url_ = url;
- survey_.fixed_msg_ = move(fixed_msg);
- survey_.t_ = thread([]{
+ sv->url_ = url;
+ sv->fixed_msg_ = move(fixed_msg);
+ sv->t_ = thread([sv]{
TAG;
- int& sock = survey_.socket_;
- const auto& msg = survey_.fixed_msg_;
- while (!survey_.t_quit_.load()) {
+ int& sock = sv->socket_;
+ const auto& msg = sv->fixed_msg_;
+ while (!sv->t_quit_.load()) {
if (sock < 0){
- sock = client_socket(survey_.url_, NN_RESPONDENT);
+ sock = client_socket(sv->url_, NN_RESPONDENT);
if (sock > 0) set_socket_timeout(sock, 126);
}
if (sock < 0) continue;
@@ -452,299 +359,5 @@
return 0;
}
-
-//////////////////////////////////////////////
-// reply for request
-
-enum { INIT, RECV, WAIT, SEND };
-struct work {
- int state{-1};
- nng_aio *aio{};
- nng_msg *msg{};
- nng_ctx ctx;
- void(*cb_recv)(work*){};
-};
-
-class _rr : public _nn{
-public:
- DISABLE_COPY_AND_ASSIGN(_rr);
- _rr()=default;
- ~_rr(){
- if(sock_local_.id > 0) nng_close(sock_local_);
- if(sock_remote_.id > 0) nng_close(sock_remote_);
- t_quit_.store(true, memory_order_relaxed);
- if (t_unblock_&&t_unblock_->joinable()) t_unblock_->join();
- }
-
- const string unblocking_msg_{"~!@#$%^&*()-=<<UNBLOCKING>>=-()*&^%$#@!~"};
-
- unique_ptr<thread> t_unblock_{nullptr};
- atomic_bool t_quit_{false};
-
- nng_socket sock_local_{0};
- nng_socket sock_remote_{0};
- int port_{-1};
-
- unordered_map<uint64_t, string> msg_{};
- class worker{
- worker& in_op(const worker& w){if(&w!=this){w_=w.w_;life_=w.life_;}return *this;};
- public:
- worker()=default;
- ~worker()=default;
- worker(struct work* w):w_(w),life_(0){}
- worker(const worker& w):w_(w.w_),life_(w.life_){}
- worker(worker&& w):w_(w.w_),life_(w.life_){}
- worker& operator=(const worker& w){return in_op(w);}
- worker& operator=(worker&& w){return in_op(w);}
- operator struct work*() const{return w_;}
- operator int&() {return life_;}
- struct work* w_{};
- int life_{};
- };
- unordered_map<uint64_t, worker> works_{};
- uint64_t work_index_{0};
- mutex mtx_msg_{};
- condition_variable cv_msg_{};
-
-};
-
-static _rr reply_;
-
-int request2(const std::string &ipc, const void* r, const int r_len,
- void** reply, int* reply_len, const int to_ms)
-{
- const auto suc = simple_request(ipc, r, r_len, reply, reply_len, to_ms);
- if (suc){
- const size_t sl = reply_.unblocking_msg_.size();
- const size_t rl = *reply_len;
- if (sl != rl) return true;
-
- const auto& s = reply_.unblocking_msg_;
- auto r = (const char*)(*reply);
- if (s.compare(0, sl, r, rl) == 0){
- free(*reply);
- *reply = NULL;
- *reply_len = 0;
- return false;
- }
- }
- return suc;
-}
-
-static void server_cb(void *arg)
-{
- if (!arg) return;
-
- struct work *work = (struct work*)arg;
- nng_msg * msg;
- int rv;
- // uint32_t when{0};
-
- switch (work->state) {
- case INIT:
- work->state = RECV;
- nng_ctx_recv(work->ctx, work->aio);
- break;
- case RECV:
- if ((rv = nng_aio_result(work->aio)) != 0) {
- break;
- }
- msg = nng_aio_get_msg(work->aio);
-
- work->msg = msg;
- work->state = WAIT;
- if (work->cb_recv) work->cb_recv(work);
- // nng_sleep_aio(when, work->aio);
- break;
- case WAIT:
- // We could add more data to the message here.
- nng_aio_set_msg(work->aio, work->msg);
- work->msg = NULL;
- work->state = SEND;
- nng_ctx_send(work->ctx, work->aio);
- break;
- case SEND:
- if ((rv = nng_aio_result(work->aio)) != 0) {
- nng_msg_free(work->msg);
- }
- work->state = RECV;
- nng_ctx_recv(work->ctx, work->aio);
- break;
- default:
- break;
- }
-}
-
-static void cb_recv_for_aio(work* w){
- nng_msg *om = w->msg;
- if (!om) return;
-
- string msg{(const char*)nng_msg_body(om), nng_msg_len(om)};
- nng_msg_free(om);
-
- lock_guard<mutex> l{reply_.mtx_msg_};
- reply_.works_.emplace(reply_.work_index_, w);
- reply_.msg_.emplace(reply_.work_index_, move(msg));
- // reply_.works_.insert({reply_.work_index_, w});
- // reply_.msg_.insert({reply_.work_index_, msg});
- // reply_.works_[reply_.work_index_] = w;
- // reply_.msg_[reply_.work_index_] = msg;
- reply_.work_index_++;
- reply_.cv_msg_.notify_all();
-}
-
-static struct work *alloc_work(nng_socket sock)
-{
- struct work *w;
- int rv;
-
- if ((w = (struct work*)nng_alloc(sizeof(*w))) == NULL) {
- return NULL;;
- }
- w->cb_recv = cb_recv_for_aio;
-
- if ((rv = nng_aio_alloc(&w->aio, server_cb, w)) != 0) {
- return NULL;
- }
- if ((rv = nng_ctx_open(&w->ctx, sock)) != 0) {
- return NULL;
- }
- w->state = INIT;
- return (w);
-}
-
-static int create_server(nng_socket* sock, const string& url, const int count){
- TAG;
- if (sock->id > 0) return 0;
-
- int rv = nng_rep0_open(sock);
- if (rv < 0){
- PRNTVITAG("create_server nng_rep0_open faild");
- PRNTVITAG(url);
- return rv;
- }
-
- work** works = (work**)malloc(sizeof(work*) * count);
- for (int i = 0; i < count; i++) {
- works[i] = alloc_work(*sock);
- }
-
- remove_exist(url);
- rv = nng_listen(*sock, url.c_str(), NULL, 0);
- if (rv < 0){
- free(works);
- PRNTVITAG("create_server nng_listen failed");
- PRNTVITAG(url);
- return rv;
- }
-
- for (int i = 0; i < count; i++) {
- server_cb(works[i]); // this starts them going (INIT state)
- }
-
- free(works);
- return 0;
-}
-
-static void aio_unblock(work* w, const void* msg, const int msg_len){
- nng_msg_alloc(&w->msg, 0);
- nng_msg_append(w->msg, msg, msg_len);
-
- nng_sleep_aio(0, w->aio);
-}
-
-int start_reply(const std::string& url, const int port){
-
- string ipc = "ipc:///tmp/" + url;
- if (url.find("ipc://") == 0){
- ipc = url;
- }
- reply_.url_ = ipc;
- if(create_server(&reply_.sock_local_, ipc, 62) != 0) return -1;
-
- if (port > 0){
- reply_.port_ = port;
- ipc = "tcp://0.0.0.0:" + to_string(port);
- if(create_server(&reply_.sock_remote_, ipc, 62) != 0) return -1;
- }else {
- reply_.sock_remote_.id = numeric_limits<int32_t>::max();
- }
-
- if (!reply_.t_unblock_){
- reply_.t_unblock_.reset(new thread([]{
- constexpr int idle = 10;
- const auto data = reply_.unblocking_msg_.data();
- const auto data_size = reply_.unblocking_msg_.size();
- while (!reply_.t_quit_.load()) {
- this_thread::sleep_for(chrono::milliseconds{10});
- vector<struct work*> tmp{};
- {
- lock_guard<mutex> l{reply_.mtx_msg_};
- for(auto iter = reply_.works_.begin(); iter != reply_.works_.end();){
- if ((iter->second+=idle) > timeout_req_rep){
- tmp.push_back(iter->second.w_);
- iter = reply_.works_.erase(iter);
- }else {
- ++iter;
- }
- }
- }
- for(auto && w : tmp){
- aio_unblock(w, data, data_size);
- }
- }
- }));
- }
-
- return 0;
-}
-
-int read_request(void** src, std::string* msg, const int to_ms){
-
- if (reply_.sock_local_.id == 0 || reply_.sock_remote_.id == 0)
- if (start_reply(reply_.url_, reply_.port_) != 0)
- return -1;
-
- int tm = to_ms > 0 ? to_ms : 30;
-
- uint64_t key{};
- {
- unique_lock<mutex> l(reply_.mtx_msg_);
- auto status = reply_.cv_msg_.wait_for(l, chrono::milliseconds{tm}, []{
- return !reply_.msg_.empty();
- });
- if (!status){
- PRNTVITAG("subscribe_read timeout");
- return -1;
- }
- auto iter = reply_.msg_.begin();
- key = iter->first;
- *msg = move(iter->second);
- reply_.msg_.erase(iter);
- }
-
- *src = malloc(sizeof(uint64_t));
- *(uint64_t*)(*src) = key;
-
- return 0;
-}
-
-int send_reply(const void* src, const void* msg, const int msg_len){
- struct work* w{};
- {
- auto key = *(static_cast<uint64_t*>(const_cast<void*>(src)));
-
- lock_guard<mutex> l{reply_.mtx_msg_};
- auto iter = reply_.works_.find(key);
- if (iter == reply_.works_.end()) return -1;
- w = iter->second;
- reply_.works_.erase(iter);
- }
-
- aio_unblock(w, msg, msg_len);
-
- return 0;
-}
-
}
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