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authorDeterminant <[email protected]>2019-10-13 14:05:29 -0400
committerDeterminant <[email protected]>2019-10-13 14:05:29 -0400
commit3505e9d33eab6d341185773c1da315b2dc833a21 (patch)
treea67629fea47ee83f5c05d781198469f135882eeb /test/test_bounded_recv_buffer.cpp
parent8270af53b2e4741fcacab49a21823597cc31d88c (diff)
WIP: bounded recv buffer
Diffstat (limited to 'test/test_bounded_recv_buffer.cpp')
-rw-r--r--test/test_bounded_recv_buffer.cpp192
1 files changed, 192 insertions, 0 deletions
diff --git a/test/test_bounded_recv_buffer.cpp b/test/test_bounded_recv_buffer.cpp
new file mode 100644
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+++ b/test/test_bounded_recv_buffer.cpp
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+/**
+ * Copyright (c) 2018 Cornell University.
+ *
+ * Author: Ted Yin <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <cstdio>
+#include <string>
+#include <functional>
+#include <thread>
+#include <signal.h>
+
+/* disable SHA256 checksum */
+#define SALTICIDAE_NOCHECKSUM
+
+#include "salticidae/msg.h"
+#include "salticidae/event.h"
+#include "salticidae/network.h"
+#include "salticidae/stream.h"
+
+using salticidae::NetAddr;
+using salticidae::DataStream;
+using salticidae::MsgNetwork;
+using salticidae::htole;
+using salticidae::letoh;
+using salticidae::bytearray_t;
+using salticidae::TimerEvent;
+using salticidae::ThreadCall;
+using std::placeholders::_1;
+using std::placeholders::_2;
+using opcode_t = uint8_t;
+
+struct MsgBytes {
+ static const opcode_t opcode = 0xa;
+ DataStream serialized;
+ bytearray_t bytes;
+ MsgBytes(size_t size) {
+ bytes.resize(size);
+ serialized << htole((uint32_t)size) << bytes;
+ }
+ MsgBytes(DataStream &&s) {
+ uint32_t len;
+ s >> len;
+ len = letoh(len);
+ auto base = s.get_data_inplace(len);
+ bytes = bytearray_t(base, base + len);
+ }
+};
+
+const opcode_t MsgBytes::opcode;
+
+using MsgNetworkByteOp = MsgNetwork<opcode_t>;
+
+struct MyNet: public MsgNetworkByteOp {
+ const std::string name;
+ TimerEvent ev_period_stat;
+ ThreadCall tcall;
+ size_t nrecv;
+ std::function<void(ThreadCall::Handle &)> trigger;
+ std::atomic<bool> stopped;
+
+ MyNet(const salticidae::EventContext &ec,
+ const std::string name,
+ double stat_timeout = -1):
+ MsgNetworkByteOp(ec, MsgNetworkByteOp::Config(
+ ConnPool::Config()
+ .max_recv_buff_size(10)
+ .queue_capacity(10)
+ ).burst_size(10)),
+ name(name),
+ ev_period_stat(ec, [this, stat_timeout](TimerEvent &) {
+ SALTICIDAE_LOG_INFO("%.2f mps", nrecv / (double)stat_timeout);
+ fflush(stderr);
+ nrecv = 0;
+ ev_period_stat.add(stat_timeout);
+ }),
+ tcall(ec),
+ nrecv(0), stopped(false) {
+ /* message handler could be a bound method */
+ reg_handler(salticidae::generic_bind(&MyNet::on_receive_bytes, this, _1, _2));
+ if (stat_timeout > 0)
+ ev_period_stat.add(0);
+ reg_conn_handler([this, ec](const ConnPool::conn_t &conn, bool connected) {
+ if (connected)
+ {
+ if (conn->get_mode() == MyNet::Conn::ACTIVE)
+ {
+ printf("[%s] connected, sending bytes.\n", this->name.c_str());
+ /* send the first message through this connection */
+ trigger = [this, conn](ThreadCall::Handle &) {
+ while (!send_msg(MsgBytes(256), salticidae::static_pointer_cast<Conn>(conn)))
+ {
+ if (stopped)
+ {
+ stop();
+ return;
+ }
+ fprintf(stderr, "cannot send message, retrying\n");
+ sleep(1);
+ }
+ if (!conn->is_terminated())
+ tcall.async_call(trigger);
+ };
+ tcall.async_call(trigger);
+ }
+ else
+ printf("[%s] passively connected, waiting for bytes.\n", this->name.c_str());
+ }
+ else
+ {
+ printf("[%s] disconnected, retrying.\n", this->name.c_str());
+ /* try to reconnect to the same address */
+ connect(conn->get_addr());
+ }
+ return true;
+ });
+ }
+
+ void on_receive_bytes(MsgBytes &&msg, const conn_t &conn) {
+ if (stopped)
+ {
+ conn->get_pool()->stop();
+ return;
+ }
+ sleep(1);
+ nrecv++;
+ }
+};
+
+salticidae::EventContext aec, bec, ec;
+NetAddr alice_addr("127.0.0.1:1234");
+NetAddr bob_addr("127.0.0.1:1235");
+
+void masksigs() {
+ sigset_t mask;
+ sigemptyset(&mask);
+ sigfillset(&mask);
+ pthread_sigmask(SIG_BLOCK, &mask, NULL);
+}
+
+int main() {
+ MyNet alice(aec, "Alice", 10), bob(bec, "Bob");
+ std::thread alice_thread([&]() {
+ masksigs();
+ alice.start();
+ alice.listen(alice_addr);
+ aec.dispatch();
+ });
+ std::thread bob_thread([&]() {
+ masksigs();
+ bob.start();
+ bob.connect(alice_addr);
+ bec.dispatch();
+ });
+ auto shutdown = [&](int) {
+ bob.stopped = true;
+ bob.tcall.async_call([&](salticidae::ThreadCall::Handle &) {
+ bec.stop();
+ });
+ bob_thread.join();
+ alice.stopped = true;
+ alice.tcall.async_call([&](salticidae::ThreadCall::Handle &) {
+ aec.stop();
+ });
+ alice_thread.join();
+ ec.stop();
+ };
+ salticidae::SigEvent ev_sigint(ec, shutdown);
+ salticidae::SigEvent ev_sigterm(ec, shutdown);
+ ev_sigint.add(SIGINT);
+ ev_sigterm.add(SIGTERM);
+ ec.dispatch();
+ return 0;
+}