libuv-svace-build

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/* Copyright libuv 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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#include "uv.h"
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#include "task.h"
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TEST_IMPL(process_priority) {
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  int priority;
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  int r;
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  int i;
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#if defined(__MVS__)
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  if (uv_os_setpriority(0, 0) == UV_ENOSYS)
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    RETURN_SKIP("functionality not supported on zOS");
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#endif
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  /* Verify that passing a NULL pointer returns UV_EINVAL. */
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  r = uv_os_getpriority(0, NULL);
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  ASSERT_EQ(r, UV_EINVAL);
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  /* Verify that all valid values work. */
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  for (i = UV_PRIORITY_HIGHEST; i <= UV_PRIORITY_LOW; i++) {
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    r = uv_os_setpriority(0, i);
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    /* If UV_EACCES is returned, the current user doesn't have permission to
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       set this specific priority. */
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    if (r == UV_EACCES)
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      continue;
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    ASSERT_OK(r);
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    ASSERT_OK(uv_os_getpriority(0, &priority));
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    /* Verify that the priority values match on Unix, and are range mapped
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       on Windows. */
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#ifndef _WIN32
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    ASSERT_EQ(priority, i);
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#else
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    /* On Windows, only elevated users can set UV_PRIORITY_HIGHEST. Other
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       users will silently be set to UV_PRIORITY_HIGH. */
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    if (i < UV_PRIORITY_HIGH)
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      ASSERT(priority == UV_PRIORITY_HIGHEST || priority == UV_PRIORITY_HIGH);
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    else if (i < UV_PRIORITY_ABOVE_NORMAL)
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      ASSERT_EQ(priority, UV_PRIORITY_HIGH);
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    else if (i < UV_PRIORITY_NORMAL)
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      ASSERT_EQ(priority, UV_PRIORITY_ABOVE_NORMAL);
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    else if (i < UV_PRIORITY_BELOW_NORMAL)
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      ASSERT_EQ(priority, UV_PRIORITY_NORMAL);
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    else if (i < UV_PRIORITY_LOW)
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      ASSERT_EQ(priority, UV_PRIORITY_BELOW_NORMAL);
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    else
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      ASSERT_EQ(priority, UV_PRIORITY_LOW);
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#endif
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    /* Verify that the current PID and 0 are equivalent. */
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    ASSERT_OK(uv_os_getpriority(uv_os_getpid(), &r));
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    ASSERT_EQ(priority, r);
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  }
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  /* Verify that invalid priorities return UV_EINVAL. */
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  ASSERT_EQ(uv_os_setpriority(0, UV_PRIORITY_HIGHEST - 1), UV_EINVAL);
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  ASSERT_EQ(uv_os_setpriority(0, UV_PRIORITY_LOW + 1), UV_EINVAL);
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  return 0;
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}
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