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https://github.com/morgan9e/systemd
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180341e732
Following the recent witch hunt done to static inline functions I figure we should at least give the compiler some more hint on optimizations.
43 lines
1.9 KiB
C
43 lines
1.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "forward.h"
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#include "static-destruct.h"
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void main_prepare(int argc, char *argv[]);
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void main_finalize(int r, int exit_status);
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#define _DEFINE_MAIN_FUNCTION(intro, impl, result_to_exit_status, result_to_return_value) \
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int main(int argc, char *argv[]) { \
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int r; \
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main_prepare(argc, argv); \
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intro; \
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r = impl; \
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main_finalize(r, result_to_exit_status(r)); \
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static_destruct(); \
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return result_to_return_value(r); \
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}
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int exit_failure_if_negative(int result) _const_;
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/* Negative return values from impl are mapped to EXIT_FAILURE, and
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* everything else means success! */
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#define DEFINE_MAIN_FUNCTION(impl) \
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_DEFINE_MAIN_FUNCTION(,impl(argc, argv), exit_failure_if_negative, exit_failure_if_negative)
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int exit_failure_if_nonzero(int result) _const_;
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/* Zero is mapped to EXIT_SUCCESS, negative values are mapped to EXIT_FAILURE,
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* and positive values are propagated.
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* Note: "true" means failure! */
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#define DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(impl) \
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_DEFINE_MAIN_FUNCTION(,impl(argc, argv), exit_failure_if_nonzero, exit_failure_if_nonzero)
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int raise_or_exit_status(int ret);
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/* Negative return values from impl are mapped to EXIT_FAILURE, zero is mapped to EXIT_SUCCESS,
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* and raise if a positive signal is returned from impl. */
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#define DEFINE_MAIN_FUNCTION_WITH_POSITIVE_SIGNAL(impl) \
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_DEFINE_MAIN_FUNCTION(,impl(argc, argv), exit_failure_if_negative, raise_or_exit_status)
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