libuv-svace-build

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/* Copyright libuv project contributors. All rights reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to
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 * deal in the Software without restriction, including without limitation the
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 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 * sell copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 */
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#if defined(_WIN32) && !defined(USING_UV_SHARED)
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#include "uv.h"
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#include "task.h"
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#include "../src/win/fs-fd-hash-inl.h"
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#define HASH_MAX 1000000000
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#define HASH_INC (1000 * UV__FD_HASH_SIZE + 2)
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#define BUCKET_MAX (UV__FD_HASH_SIZE * UV__FD_HASH_GROUP_SIZE * 10)
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#define BUCKET_INC UV__FD_HASH_SIZE
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#define FD_DIFF 9
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void assert_nonexistent(int fd) {
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  struct uv__fd_info_s info = { 0 };
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  ASSERT(!uv__fd_hash_get(fd, &info));
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  ASSERT(!uv__fd_hash_remove(fd, &info));
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}
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void assert_existent(int fd) {
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  struct uv__fd_info_s info = { 0 };
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  ASSERT(uv__fd_hash_get(fd, &info));
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  ASSERT_EQ(info.flags, fd + FD_DIFF);
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}
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void assert_insertion(int fd) {
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  struct uv__fd_info_s info = { 0 };
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  assert_nonexistent(fd);
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  info.flags = fd + FD_DIFF;
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  uv__fd_hash_add(fd, &info);
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  assert_existent(fd);
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}
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void assert_removal(int fd) {
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  struct uv__fd_info_s info = { 0 };
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  assert_existent(fd);
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  uv__fd_hash_remove(fd, &info);
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  ASSERT_EQ(info.flags, fd + FD_DIFF);
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  assert_nonexistent(fd);
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}
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/* Run a function for a set of values up to a very high number */
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#define RUN_HASH(function)                                                   \
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  do {                                                                       \
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    for (fd = 0; fd < HASH_MAX; fd += HASH_INC) {                            \
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      function(fd);                                                          \
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    }                                                                        \
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  } while (0)
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/* Run a function for a set of values that will cause many collisions */
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#define RUN_COLLISIONS(function)                                             \
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  do {                                                                       \
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    for (fd = 1; fd < BUCKET_MAX; fd += BUCKET_INC) {                        \
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      function(fd);                                                          \
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    }                                                                        \
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  } while (0)
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TEST_IMPL(fs_fd_hash) {
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  int fd;
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  uv__fd_hash_init();
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  /* Empty table */
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  RUN_HASH(assert_nonexistent);
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  RUN_COLLISIONS(assert_nonexistent);
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  /* Fill up */
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  RUN_HASH(assert_insertion);
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  RUN_COLLISIONS(assert_insertion);
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  /* Full */
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  RUN_HASH(assert_existent);
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  RUN_COLLISIONS(assert_existent);
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  /* Update */
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  {
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    struct uv__fd_info_s info = { 0 };
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    info.flags = FD_DIFF + FD_DIFF;
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    uv__fd_hash_add(0, &info);
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  }
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  {
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    struct uv__fd_info_s info = { 0 };
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    ASSERT(uv__fd_hash_get(0, &info));
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    ASSERT_EQ(info.flags, FD_DIFF + FD_DIFF);
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  }
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  {
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    /* Leave as it was, will be again tested below */
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    struct uv__fd_info_s info = { 0 };
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    info.flags = FD_DIFF;
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    uv__fd_hash_add(0, &info);
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  }
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  /* Remove all */
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  RUN_HASH(assert_removal);
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  RUN_COLLISIONS(assert_removal);
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  /* Empty table */
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  RUN_HASH(assert_nonexistent);
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  RUN_COLLISIONS(assert_nonexistent);
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  return 0;
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}
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#else
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typedef int file_has_no_tests;  /* ISO C forbids an empty translation unit. */
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#endif  /* ifndef _WIN32 */
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