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72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
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// Copyright 2014 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CRASHPAD_UTIL_TEST_ERRORS_H_
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#define CRASHPAD_UTIL_TEST_ERRORS_H_
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#include <string>
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namespace crashpad {
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namespace test {
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// These functions format messages in a similar way to the PLOG and PCHECK
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// family of logging macros in base/logging.h. They exist to interoperate with
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// gtest assertions, which don’t interoperate with logging but can be streamed
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// to.
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//
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// Where non-test code could do:
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// PCHECK(rv == 0) << "close";
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// gtest-based test code can do:
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// EXPECT_EQ(0, rv) << ErrnoMessage("close");
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//! \brief Formats an error message using an `errno` value.
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//!
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//! The returned string will combine the \a base string, if supplied, with a
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//! a textual and numeric description of the error.
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//!
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//! The message is formatted using `strerror()`. \a err may be `0` or outside of
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//! the range of known error codes, and the message returned will contain the
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//! string that `strerror()` uses in these cases.
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//!
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//! \param[in] err The error code, usable as an `errno` value.
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//! \param[in] base A string to prepend to the error description.
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//!
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//! \return A string of the format `"Operation not permitted (1)"` if \a err has
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//! the value `EPERM` on a system where this is defined to be `1`. If \a
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//! base is not empty, it will be prepended to this string, separated by a
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//! colon.
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std::string ErrnoMessage(int err, const std::string& base = std::string());
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//! \brief Formats an error message using `errno`.
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//!
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//! The returned string will combine the \a base string, if supplied, with a
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//! a textual and numeric description of the error.
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//!
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//! The message is formatted using `strerror()`. `errno` may be `0` or outside
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//! of the range of known error codes, and the message returned will contain the
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//! string that `strerror()` uses in these cases.
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//!
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//! \param[in] base A string to prepend to the error description.
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//!
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//! \return A string of the format `"Operation not permitted (1)"` if `errno`
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//! has the value `EPERM` on a system where this is defined to be `1`. If
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//! \a base is not empty, it will be prepended to this string, separated by
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//! a colon.
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std::string ErrnoMessage(const std::string& base = std::string());
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} // namespace test
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_TEST_ERRORS_H_
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