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* @build: make examples

* @server bin/httpd -s restart -d

* @client bin/curl -v http://127.0.0.1:8080/

* @usage: bin/wrk -c 1000 -d 10 -t 4 http://127.0.0.1:8080/

#include <vector>

#include <algorithm>

#include "hv.h"

#include "hmain.h" // import parse_opt

#include "hloop.h"

#include "EventLoopThreadPool.h"

#include "HttpMessage.h"

#include "HttpParser.h"

using namespace hv;

static const char options[] = "hvc:d:t:b:i:";

static const char detail_options[] = R"(

-h Print help infomation

-v Show verbose infomation

-c <connections> Number of connections, default: 1000

-d <duration> Duration of test, default: 10s

-t <threads> Number of threads, default: 4

-b <bytes> Content-Length, default: 0

-i <interval> Interval of timer, default: 0ms

)";

static int connections = 1000;

static int duration = 10; // s

static int threads = 4;

static int bytes = 0; // byte

static int interval = 0; // ms

static bool verbose = false;

static const char* url = NULL;

static bool https = false;

static char ip[64] = "127.0.0.1";

static int port = 80;

static bool stop = false;

static HttpRequestPtr request;

static std::string request_msg;

typedef struct connection_s {

hio_t* io;

HttpParserPtr parser;

HttpResponsePtr response;

uint64_t request_cnt;

uint64_t response_cnt;

uint64_t ok_cnt;

uint64_t readbytes;

uint64_t start_time;

std::vector<int> delays;

connection_s()

: parser(HttpParser::New(HTTP_CLIENT, HTTP_V1))

, response(std::make_shared<HttpResponse>())

, request_cnt(0)

, response_cnt(0)

, ok_cnt(0)

, readbytes(0)

{

response->http_cb = [](HttpMessage* res, http_parser_state state, const char* data, size_t size) {

// wrk no need to save data to body

};

}

void SendRequest() {

start_time = hloop_now_ms(hevent_loop(io));

hio_write(io, request_msg.data(), request_msg.size());

++request_cnt;

parser->InitResponse(response.get());

}

bool RecvResponse(const char* data, int size) {

readbytes += size;

int nparse = parser->FeedRecvData(data, size);

if (nparse != size) {

fprintf(stderr, "http parse error!\n");

hio_close(io);

return false;

}

if (parser->IsComplete()) {

int delay = hloop_now_ms(hevent_loop(io)) - start_time;

delays.push_back(delay);

++response_cnt;

if (response->status_code == HTTP_STATUS_OK) {

++ok_cnt;

}

return true;

}

return false;

}

} connection_t;

static connection_t** conns = NULL;

static std::atomic<int> connected_num(0);

static std::atomic<int> disconnected_num(0);

static unsigned int connect_start_time = 0;

static void print_help() {

printf("Usage: wrk [%s] <url>\n", options);

printf("Options:\n%s\n", detail_options);

}

static void print_cmd() {

printf("Running %ds test @ %s\n", duration, url);

printf("%d threads and %d connections\n", threads, connections);

}

static void print_result() {

uint64_t total_request_cnt = 0;

uint64_t total_response_cnt = 0;

uint64_t total_ok_cnt = 0;

uint64_t total_readbytes = 0;

uint64_t total_delay = 0;

std::vector<int> delays;

connection_t* conn = NULL;

for (int i = 0; i < connections; ++i) {

conn = conns[i];

total_request_cnt += conn->request_cnt;

total_response_cnt += conn->response_cnt;

total_ok_cnt += conn->ok_cnt;

total_readbytes += conn->readbytes;

delays.insert(delays.end(), conn->delays.begin(), conn->delays.end());

}

std::sort(delays.begin(), delays.end());

for (int i = 0; i < delays.size(); ++i) {

total_delay += delays[i];

}

printf("%llu requests, %llu OK, %lluMB read in %ds\n",

LLU(total_request_cnt),

LLU(total_ok_cnt),

LLU(total_readbytes >> 20),

duration);

printf("Requests/sec: %8llu\n", LLU(total_response_cnt / duration));

printf("Transfer/sec: %8lluMB\n", LLU((total_readbytes / duration) >> 20));

printf("Latency avg: %8llums\n", LLU(total_delay / delays.size()));

printf("Percentage of the requests served within a certain time (ms)\n");

printf(" 50%% %d\n", delays[delays.size() * 0.5]);

printf(" 60%% %d\n", delays[delays.size() * 0.6]);

printf(" 70%% %d\n", delays[delays.size() * 0.7]);

printf(" 80%% %d\n", delays[delays.size() * 0.8]);

printf(" 90%% %d\n", delays[delays.size() * 0.9]);

printf(" 95%% %d\n", delays[delays.size() * 0.95]);

printf(" 96%% %d\n", delays[delays.size() * 0.96]);

printf(" 97%% %d\n", delays[delays.size() * 0.97]);

printf(" 98%% %d\n", delays[delays.size() * 0.98]);

printf(" 99%% %d\n", delays[delays.size() * 0.99]);

printf(" 100%% %d (longest delay)\n", delays.back());

}

static void start_reconnect(hio_t* io);

static void on_close(hio_t* io) {

if (++disconnected_num == connections) {

if (verbose) {

printf("all disconnected\n");

}

if (!stop) {

// NOTE: nginx keepalive_requests = 100

start_reconnect(io);

}

static void on_recv(hio_t* io, void* buf, int readbytes) {

connection_t* conn = (connection_t*)hevent_userdata(io);

if (conn->RecvResponse((const char*)buf, readbytes)) {

if (interval == 0) {

conn->SendRequest();

}

static void send_heartbeat(hio_t* io) {

connection_t* conn = (connection_t*)hevent_userdata(io);

conn->SendRequest();

}

static void on_connect(hio_t* io) {

if (++connected_num == connections) {

if (verbose) {

printf("all connected in %ums\n", gettick_ms() - connect_start_time);

}

connection_t* conn = (connection_t*)hevent_userdata(io);

if (interval == 0) {

conn->SendRequest();

} else {

hio_set_heartbeat(io, interval, send_heartbeat);

}

hio_setcb_read(io, on_recv);

hio_read(io);

}

static void start_connect(hloop_t* loop, connection_t* conn) {

hio_t* io = hio_create_socket(loop, ip, port, HIO_TYPE_TCP, HIO_CLIENT_SIDE);

if (io == NULL) {

perror("socket");

exit(1);

}

conn->io = io;

hevent_set_userdata(io, conn);

if (https) {

hio_enable_ssl(io);

}

tcp_nodelay(hio_fd(io), 1);

hio_setcb_connect(io, on_connect);

hio_setcb_close(io, on_close);

hio_connect(io);

}

static void start_reconnect(hio_t* io) {

hloop_t* loop = hevent_loop(io);

connection_t* conn = (connection_t*)hevent_userdata(io);

start_connect(loop, conn);

}

int main(int argc, char** argv) {

// parse cmdline

main_ctx_init(argc, argv);

int ret = parse_opt(argc, argv, options);

if (ret != 0) {

print_help();

exit(ret);

}

if (get_arg("h") || g_main_ctx.arg_list_size != 1) {

print_help();

exit(0);

}

url = g_main_ctx.arg_list[0];

if (get_arg("v")) {

verbose = true;

}

const char* strConnections = get_arg("c");

const char* strDuration = get_arg("d");

const char* strThreads = get_arg("t");

const char* strBytes = get_arg("b");

const char* strInterval = get_arg("i");

if (strConnections) connections = atoi(strConnections);

if (strDuration) duration = atoi(strDuration);

if (strThreads) threads = atoi(strThreads);

if (strBytes) bytes = atoi(strBytes);

if (strInterval) interval = atoi(strInterval);

print_cmd();

// ParseUrl

request = std::make_shared<HttpRequest>();

request->url = url;

request->ParseUrl();

https = request->scheme == "https";

const char* host = request->host.c_str();

port = request->port;

// ResolveAddr

if (is_ipaddr(host)) {

strcpy(ip, host);

} else {

sockaddr_u addr;

if (ResolveAddr(host, &addr) != 0) {

fprintf(stderr, "Could not resolve host: %s\n", host);

exit(1);

}

sockaddr_ip(&addr, ip, sizeof(ip));

}

// Test connect

printf("Connect to %s:%d ...\n", ip, port);

int connfd = ConnectTimeout(ip, port);

if (connfd < 0) {

fprintf(stderr, "Could not connect to %s:%d\n", ip, port);

exit(1);

} else {

closesocket(connfd);

}

// Dump request

request->headers["User-Agent"] = std::string("libhv/") + hv_version();

request->headers["Connection"] = "keep-alive";

if (bytes > 0) {

request->method = HTTP_POST;

request->body = std::string(bytes, 'a');

}

request_msg = request->Dump(true, true);

printf("%.*s", int(request_msg.size() - request->body.size()), request_msg.c_str());

// EventLoopThreadPool

EventLoopThreadPool loop_threads(threads);

loop_threads.start(true);

// connections

connect_start_time = gettick_ms();

conns = (connection_t**)malloc(sizeof(connection_t*) * connections);

for (int i = 0; i < connections; ++i) {

conns[i] = new connection_t;

EventLoopPtr loop = loop_threads.nextLoop();

hloop_t* hloop = loop->loop();

loop->runInLoop(std::bind(start_connect, loop->loop(), conns[i]));

}

// stop after duration

loop_threads.loop()->setTimeout(duration * 1000, [&loop_threads](TimerID timerID){

stop = true;

loop_threads.stop(false);

});

// wait loop_threads exit

loop_threads.join();

print_result();

return 0;

}