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       1                 :            : /*
       2                 :            :  * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
       3                 :            :  *
       4                 :            :  * Licensed under the Apache License, Version 2.0 (the "License").
       5                 :            :  * You may not use this file except in compliance with the License.
       6                 :            :  * A copy of the License is located at
       7                 :            :  *
       8                 :            :  *  http://aws.amazon.com/apache2.0
       9                 :            :  *
      10                 :            :  * or in the "license" file accompanying this file. This file is distributed
      11                 :            :  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
      12                 :            :  * express or implied. See the License for the specific language governing
      13                 :            :  * permissions and limitations under the License.
      14                 :            :  */
      15                 :            : #pragma once
      16                 :            : 
      17                 :            : #include "utils/s2n_result.h"
      18                 :            : 
      19                 :            : /* While we shouldn't need to reset errno before executing `action`,
      20                 :            :  * we do so just in case action doesn't set errno properly on failure.
      21                 :            :  */
      22                 :            : #define S2N_IO_RETRY_EINTR(result, action) \
      23                 :    1487540 :     do {                                   \
      24                 :    1487540 :         errno = 0;                         \
      25                 :    1487540 :         result = action;                   \
      26                 :    1487540 :     } while (result < 0 && errno == EINTR)
      27                 :            : 
      28                 :            : S2N_RESULT s2n_io_check_write_result(ssize_t result);
      29                 :            : S2N_RESULT s2n_io_check_read_result(ssize_t result);