test-tcp-writealot.c

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 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
 
 
#define WRITES            3
#if defined(__arm__) /* Decrease the chunks so the test passes on arm CI bots */
#define CHUNKS_PER_WRITE  2048
#else
#define CHUNKS_PER_WRITE  4096
#endif
#define CHUNK_SIZE        10024 /* 10 kb */
 
#define TOTAL_BYTES       (WRITES * CHUNKS_PER_WRITE * CHUNK_SIZE)
 
static char* send_buffer;
 
static int shutdown_cb_called = 0;
static int connect_cb_called = 0;
static int write_cb_called = 0;
static int close_cb_called = 0;
static size_t bytes_sent = 0;
static size_t bytes_sent_done = 0;
static size_t bytes_received_done = 0;
 
static uv_connect_t connect_req;
static uv_shutdown_t shutdown_req;
static uv_write_t write_reqs[WRITES];
 
 
static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
  buf->base = malloc(size);
  buf->len = size;
}
 
 
static void close_cb(uv_handle_t* handle) {
  ASSERT(handle != NULL);
  close_cb_called++;
}
 
 
static void shutdown_cb(uv_shutdown_t* req, int status) {
  uv_tcp_t* tcp;
 
  ASSERT(req == &shutdown_req);
  ASSERT(status == 0);
 
  tcp = (uv_tcp_t*)(req->handle);
 
  /* The write buffer should be empty by now. */
  ASSERT(tcp->write_queue_size == 0);
 
  /* Now we wait for the EOF */
  shutdown_cb_called++;
 
  /* We should have had all the writes called already. */
  ASSERT(write_cb_called == WRITES);
}
 
 
static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
  ASSERT(tcp != NULL);
 
  if (nread >= 0) {
    bytes_received_done += nread;
  }
  else {
    ASSERT(nread == UV_EOF);
    printf("GOT EOF\n");
    uv_close((uv_handle_t*)tcp, close_cb);
  }
 
  free(buf->base);
}
 
 
static void write_cb(uv_write_t* req, int status) {
  ASSERT(req != NULL);
 
  if (status) {
    fprintf(stderr, "uv_write error: %s\n", uv_strerror(status));
    ASSERT(0);
  }
 
  bytes_sent_done += CHUNKS_PER_WRITE * CHUNK_SIZE;
  write_cb_called++;
}
 
 
static void connect_cb(uv_connect_t* req, int status) {
  uv_buf_t send_bufs[CHUNKS_PER_WRITE];
  uv_stream_t* stream;
  int i, j, r;
 
  ASSERT(req == &connect_req);
  ASSERT(status == 0);
 
  stream = req->handle;
  connect_cb_called++;
 
  /* Write a lot of data */
  for (i = 0; i < WRITES; i++) {
    uv_write_t* write_req = write_reqs + i;
 
    for (j = 0; j < CHUNKS_PER_WRITE; j++) {
      send_bufs[j] = uv_buf_init(send_buffer + bytes_sent, CHUNK_SIZE);
      bytes_sent += CHUNK_SIZE;
    }
 
    r = uv_write(write_req, stream, send_bufs, CHUNKS_PER_WRITE, write_cb);
    ASSERT(r == 0);
  }
 
  /* Shutdown on drain. */
  r = uv_shutdown(&shutdown_req, stream, shutdown_cb);
  ASSERT(r == 0);
 
  /* Start reading */
  r = uv_read_start(stream, alloc_cb, read_cb);
  ASSERT(r == 0);
}
 
 
TEST_IMPL(tcp_writealot) {
  struct sockaddr_in addr;
  uv_tcp_t client;
  int r;
 
  ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
 
  send_buffer = calloc(1, TOTAL_BYTES);
  ASSERT(send_buffer != NULL);
 
  r = uv_tcp_init(uv_default_loop(), &client);
  ASSERT(r == 0);
 
  r = uv_tcp_connect(&connect_req,
                     &client,
                     (const struct sockaddr*) &addr,
                     connect_cb);
  ASSERT(r == 0);
 
  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
 
  ASSERT(shutdown_cb_called == 1);
  ASSERT(connect_cb_called == 1);
  ASSERT(write_cb_called == WRITES);
  ASSERT(close_cb_called == 1);
  ASSERT(bytes_sent == TOTAL_BYTES);
  ASSERT(bytes_sent_done == TOTAL_BYTES);
  ASSERT(bytes_received_done == TOTAL_BYTES);
 
  free(send_buffer);
 
  MAKE_VALGRIND_HAPPY();
  return 0;
}