xref: /libuv/test/benchmark-tcp-write-batch.c (revision 011a1ac1)
1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to
5  * deal in the Software without restriction, including without limitation the
6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7  * sell copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19  * IN THE SOFTWARE.
20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 
25 #include <stdio.h>
26 #include <stdlib.h>
27 
28 #define WRITE_REQ_DATA  "Hello, world."
29 #define NUM_WRITE_REQS  (1000 * 1000)
30 
31 typedef struct {
32   uv_write_t req;
33   uv_buf_t buf;
34 } write_req;
35 
36 
37 static write_req* write_reqs;
38 static uv_tcp_t tcp_client;
39 static uv_connect_t connect_req;
40 static uv_shutdown_t shutdown_req;
41 
42 static int shutdown_cb_called = 0;
43 static int connect_cb_called = 0;
44 static int write_cb_called = 0;
45 static int close_cb_called = 0;
46 
47 static void connect_cb(uv_connect_t* req, int status);
48 static void write_cb(uv_write_t* req, int status);
49 static void shutdown_cb(uv_shutdown_t* req, int status);
50 static void close_cb(uv_handle_t* handle);
51 
52 
connect_cb(uv_connect_t * req,int status)53 static void connect_cb(uv_connect_t* req, int status) {
54   write_req* w;
55   int i;
56   int r;
57 
58   ASSERT_PTR_EQ(req->handle, (uv_stream_t*)&tcp_client);
59 
60   for (i = 0; i < NUM_WRITE_REQS; i++) {
61     w = &write_reqs[i];
62     r = uv_write(&w->req, req->handle, &w->buf, 1, write_cb);
63     ASSERT_OK(r);
64   }
65 
66   r = uv_shutdown(&shutdown_req, req->handle, shutdown_cb);
67   ASSERT_OK(r);
68 
69   connect_cb_called++;
70 }
71 
72 
write_cb(uv_write_t * req,int status)73 static void write_cb(uv_write_t* req, int status) {
74   ASSERT_NOT_NULL(req);
75   ASSERT_OK(status);
76   write_cb_called++;
77 }
78 
79 
shutdown_cb(uv_shutdown_t * req,int status)80 static void shutdown_cb(uv_shutdown_t* req, int status) {
81   ASSERT_PTR_EQ(req->handle, (uv_stream_t*)&tcp_client);
82   ASSERT_OK(req->handle->write_queue_size);
83 
84   uv_close((uv_handle_t*)req->handle, close_cb);
85   free(write_reqs);
86 
87   shutdown_cb_called++;
88 }
89 
90 
close_cb(uv_handle_t * handle)91 static void close_cb(uv_handle_t* handle) {
92   ASSERT_PTR_EQ(handle, (uv_handle_t*)&tcp_client);
93   close_cb_called++;
94 }
95 
96 
BENCHMARK_IMPL(tcp_write_batch)97 BENCHMARK_IMPL(tcp_write_batch) {
98   struct sockaddr_in addr;
99   uv_loop_t* loop;
100   uint64_t start;
101   uint64_t stop;
102   int i;
103   int r;
104 
105   write_reqs = malloc(sizeof(*write_reqs) * NUM_WRITE_REQS);
106   ASSERT_NOT_NULL(write_reqs);
107 
108   /* Prepare the data to write out. */
109   for (i = 0; i < NUM_WRITE_REQS; i++) {
110     write_reqs[i].buf = uv_buf_init(WRITE_REQ_DATA,
111                                     sizeof(WRITE_REQ_DATA) - 1);
112   }
113 
114   loop = uv_default_loop();
115   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
116 
117   r = uv_tcp_init(loop, &tcp_client);
118   ASSERT_OK(r);
119 
120   r = uv_tcp_connect(&connect_req,
121                      &tcp_client,
122                      (const struct sockaddr*) &addr,
123                      connect_cb);
124   ASSERT_OK(r);
125 
126   start = uv_hrtime();
127 
128   r = uv_run(loop, UV_RUN_DEFAULT);
129   ASSERT_OK(r);
130 
131   stop = uv_hrtime();
132 
133   ASSERT_EQ(1, connect_cb_called);
134   ASSERT_EQ(write_cb_called, NUM_WRITE_REQS);
135   ASSERT_EQ(1, shutdown_cb_called);
136   ASSERT_EQ(1, close_cb_called);
137 
138   printf("%ld write requests in %.2fs.\n",
139          (long)NUM_WRITE_REQS,
140          (stop - start) / 1e9);
141 
142   MAKE_VALGRIND_HAPPY(loop);
143   return 0;
144 }
145