Squashed 'third_party/libevent/' content from commit d8ceae8
Change-Id: I84e1b23561eb225b9f288717b028e6bc9e5a27e1
git-subtree-dir: third_party/libevent
git-subtree-split: d8ceae81b83f3d0a56e2f41d4c429b2702a8e302
diff --git a/test/bench_httpclient.c b/test/bench_httpclient.c
new file mode 100644
index 0000000..581b23d
--- /dev/null
+++ b/test/bench_httpclient.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright 2009-2012 Niels Provos and Nick Mathewson
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/types.h>
+#ifdef WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+# ifdef _XOPEN_SOURCE_EXTENDED
+# include <arpa/inet.h>
+# endif
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "event2/event.h"
+#include "event2/bufferevent.h"
+#include "event2/buffer.h"
+#include "event2/util.h"
+
+/* for EVUTIL_ERR_CONNECT_RETRIABLE macro */
+#include "util-internal.h"
+
+const char *resource = NULL;
+struct event_base *base = NULL;
+
+int total_n_handled = 0;
+int total_n_errors = 0;
+int total_n_launched = 0;
+size_t total_n_bytes = 0;
+struct timeval total_time = {0,0};
+int n_errors = 0;
+
+const int PARALLELISM = 200;
+const int N_REQUESTS = 20000;
+
+struct request_info {
+ size_t n_read;
+ struct timeval started;
+};
+
+static int launch_request(void);
+static void readcb(struct bufferevent *b, void *arg);
+static void errorcb(struct bufferevent *b, short what, void *arg);
+
+static void
+readcb(struct bufferevent *b, void *arg)
+{
+ struct request_info *ri = arg;
+ struct evbuffer *input = bufferevent_get_input(b);
+ size_t n = evbuffer_get_length(input);
+
+ ri->n_read += n;
+ evbuffer_drain(input, n);
+}
+
+static void
+errorcb(struct bufferevent *b, short what, void *arg)
+{
+ struct request_info *ri = arg;
+ struct timeval now, diff;
+ if (what & BEV_EVENT_EOF) {
+ ++total_n_handled;
+ total_n_bytes += ri->n_read;
+ evutil_gettimeofday(&now, NULL);
+ evutil_timersub(&now, &ri->started, &diff);
+ evutil_timeradd(&diff, &total_time, &total_time);
+
+ if (total_n_handled && (total_n_handled%1000)==0)
+ printf("%d requests done\n",total_n_handled);
+
+ if (total_n_launched < N_REQUESTS) {
+ if (launch_request() < 0)
+ perror("Can't launch");
+ }
+ } else {
+ ++total_n_errors;
+ perror("Unexpected error");
+ }
+
+ bufferevent_setcb(b, NULL, NULL, NULL, NULL);
+ free(ri);
+ bufferevent_disable(b, EV_READ|EV_WRITE);
+ bufferevent_free(b);
+}
+
+static void
+frob_socket(evutil_socket_t sock)
+{
+ struct linger l;
+ int one = 1;
+ if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&one, sizeof(one))<0)
+ perror("setsockopt(SO_REUSEADDR)");
+ l.l_onoff = 1;
+ l.l_linger = 0;
+ if (setsockopt(sock, SOL_SOCKET, SO_LINGER, (void*)&l, sizeof(l))<0)
+ perror("setsockopt(SO_LINGER)");
+}
+
+static int
+launch_request(void)
+{
+ evutil_socket_t sock;
+ struct sockaddr_in sin;
+ struct bufferevent *b;
+
+ struct request_info *ri;
+
+ memset(&sin, 0, sizeof(sin));
+
+ ++total_n_launched;
+
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = htonl(0x7f000001);
+ sin.sin_port = htons(8080);
+ if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+ return -1;
+ if (evutil_make_socket_nonblocking(sock) < 0)
+ return -1;
+ frob_socket(sock);
+ if (connect(sock, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
+ int e = errno;
+ if (! EVUTIL_ERR_CONNECT_RETRIABLE(e)) {
+ return -1;
+ }
+ }
+
+ ri = malloc(sizeof(*ri));
+ ri->n_read = 0;
+ evutil_gettimeofday(&ri->started, NULL);
+
+ b = bufferevent_socket_new(base, sock, BEV_OPT_CLOSE_ON_FREE);
+
+ bufferevent_setcb(b, readcb, NULL, errorcb, ri);
+ bufferevent_enable(b, EV_READ|EV_WRITE);
+
+ evbuffer_add_printf(bufferevent_get_output(b),
+ "GET %s HTTP/1.0\r\n\r\n", resource);
+
+ return 0;
+}
+
+
+int
+main(int argc, char **argv)
+{
+ int i;
+ struct timeval start, end, total;
+ long long usec;
+ double throughput;
+ resource = "/ref";
+
+ setvbuf(stdout, NULL, _IONBF, 0);
+
+ base = event_base_new();
+
+ for (i=0; i < PARALLELISM; ++i) {
+ if (launch_request() < 0)
+ perror("launch");
+ }
+
+ evutil_gettimeofday(&start, NULL);
+
+ event_base_dispatch(base);
+
+ evutil_gettimeofday(&end, NULL);
+ evutil_timersub(&end, &start, &total);
+ usec = total_time.tv_sec * 1000000 + total_time.tv_usec;
+
+ if (!total_n_handled) {
+ puts("Nothing worked. You probably did something dumb.");
+ return 0;
+ }
+
+
+ throughput = total_n_handled /
+ (total.tv_sec+ ((double)total.tv_usec)/1000000.0);
+
+#ifdef WIN32
+#define I64_FMT "%I64d"
+#define I64_TYP __int64
+#else
+#define I64_FMT "%lld"
+#define I64_TYP long long int
+#endif
+
+ printf("\n%d requests in %d.%06d sec. (%.2f throughput)\n"
+ "Each took about %.02f msec latency\n"
+ I64_FMT "bytes read. %d errors.\n",
+ total_n_handled,
+ (int)total.tv_sec, (int)total.tv_usec,
+ throughput,
+ (double)(usec/1000) / total_n_handled,
+ (I64_TYP)total_n_bytes, n_errors);
+
+ return 0;
+}