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      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 #include <stdio.h>
     25 #include <stdlib.h>
     26 
     27 
     28 #define WRITES            3
     29 #if defined(__arm__) /* Decrease the chunks so the test passes on arm CI bots */
     30 #define CHUNKS_PER_WRITE  2048
     31 #else
     32 #define CHUNKS_PER_WRITE  4096
     33 #endif
     34 #define CHUNK_SIZE        10024 /* 10 kb */
     35 
     36 #define TOTAL_BYTES       (WRITES * CHUNKS_PER_WRITE * CHUNK_SIZE)
     37 
     38 static char* send_buffer;
     39 
     40 static int shutdown_cb_called = 0;
     41 static int connect_cb_called = 0;
     42 static int write_cb_called = 0;
     43 static int close_cb_called = 0;
     44 static size_t bytes_sent = 0;
     45 static size_t bytes_sent_done = 0;
     46 static size_t bytes_received_done = 0;
     47 
     48 static uv_connect_t connect_req;
     49 static uv_shutdown_t shutdown_req;
     50 static uv_write_t write_reqs[WRITES];
     51 
     52 
     53 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
     54   buf->base = malloc(size);
     55   buf->len = size;
     56 }
     57 
     58 
     59 static void close_cb(uv_handle_t* handle) {
     60   ASSERT_NOT_NULL(handle);
     61   close_cb_called++;
     62 }
     63 
     64 
     65 static void shutdown_cb(uv_shutdown_t* req, int status) {
     66   uv_tcp_t* tcp;
     67 
     68   ASSERT_PTR_EQ(req, &shutdown_req);
     69   ASSERT_OK(status);
     70 
     71   tcp = (uv_tcp_t*)(req->handle);
     72 
     73   /* The write buffer should be empty by now. */
     74   ASSERT_OK(tcp->write_queue_size);
     75 
     76   /* Now we wait for the EOF */
     77   shutdown_cb_called++;
     78 
     79   /* We should have had all the writes called already. */
     80   ASSERT_EQ(write_cb_called, WRITES);
     81 }
     82 
     83 
     84 static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
     85   ASSERT_NOT_NULL(tcp);
     86 
     87   if (nread >= 0) {
     88     bytes_received_done += nread;
     89   }
     90   else {
     91     ASSERT_EQ(nread, UV_EOF);
     92     printf("GOT EOF\n");
     93     uv_close((uv_handle_t*)tcp, close_cb);
     94   }
     95 
     96   free(buf->base);
     97 }
     98 
     99 
    100 static void write_cb(uv_write_t* req, int status) {
    101   ASSERT_NOT_NULL(req);
    102 
    103   if (status) {
    104     fprintf(stderr, "uv_write error: %s\n", uv_strerror(status));
    105     ASSERT(0);
    106   }
    107 
    108   bytes_sent_done += CHUNKS_PER_WRITE * CHUNK_SIZE;
    109   write_cb_called++;
    110 }
    111 
    112 
    113 static void connect_cb(uv_connect_t* req, int status) {
    114   uv_buf_t send_bufs[CHUNKS_PER_WRITE];
    115   uv_stream_t* stream;
    116   int i, j, r;
    117 
    118   ASSERT_PTR_EQ(req, &connect_req);
    119   ASSERT_OK(status);
    120 
    121   stream = req->handle;
    122   connect_cb_called++;
    123 
    124   /* Write a lot of data */
    125   for (i = 0; i < WRITES; i++) {
    126     uv_write_t* write_req = write_reqs + i;
    127 
    128     for (j = 0; j < CHUNKS_PER_WRITE; j++) {
    129       send_bufs[j] = uv_buf_init(send_buffer + bytes_sent, CHUNK_SIZE);
    130       bytes_sent += CHUNK_SIZE;
    131     }
    132 
    133     r = uv_write(write_req, stream, send_bufs, CHUNKS_PER_WRITE, write_cb);
    134     ASSERT_OK(r);
    135   }
    136 
    137   /* Shutdown on drain. */
    138   r = uv_shutdown(&shutdown_req, stream, shutdown_cb);
    139   ASSERT_OK(r);
    140 
    141   /* Start reading */
    142   r = uv_read_start(stream, alloc_cb, read_cb);
    143   ASSERT_OK(r);
    144 }
    145 
    146 
    147 TEST_IMPL(tcp_writealot) {
    148   struct sockaddr_in addr;
    149   uv_tcp_t client;
    150   int r;
    151 
    152 #if defined(__MSAN__) || defined(__TSAN__)
    153   RETURN_SKIP("Test is too slow to run under "
    154               "MemorySanitizer or ThreadSanitizer");
    155 #endif
    156 
    157   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
    158 
    159   send_buffer = calloc(1, TOTAL_BYTES);
    160   ASSERT_NOT_NULL(send_buffer);
    161 
    162   r = uv_tcp_init(uv_default_loop(), &client);
    163   ASSERT_OK(r);
    164 
    165   r = uv_tcp_connect(&connect_req,
    166                      &client,
    167                      (const struct sockaddr*) &addr,
    168                      connect_cb);
    169   ASSERT_OK(r);
    170 
    171   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
    172 
    173   ASSERT_EQ(1, shutdown_cb_called);
    174   ASSERT_EQ(1, connect_cb_called);
    175   ASSERT_EQ(write_cb_called, WRITES);
    176   ASSERT_EQ(1, close_cb_called);
    177   ASSERT_EQ(bytes_sent, TOTAL_BYTES);
    178   ASSERT_EQ(bytes_sent_done, TOTAL_BYTES);
    179   ASSERT_EQ(bytes_received_done, TOTAL_BYTES);
    180 
    181   free(send_buffer);
    182 
    183   MAKE_VALGRIND_HAPPY(uv_default_loop());
    184   return 0;
    185 }
    186