330793c91d
Towards the goal of getting `ninja libc-lint` back to green, fix the numerous
instances of:
warning: header guard does not follow preferred style [llvm-header-guard]
This is because many of our header guards start with `__LLVM` rather than
`LLVM`.
To filter just these warnings:
$ ninja -k2000 libc-lint 2>&1 | grep llvm-header-guard
To automatically apply fixits:
$ find libc/src libc/include libc/test -name \*.h | \
xargs -n1 -I {} clang-tidy {} -p build/compile_commands.json \
-checks='-*,llvm-header-guard' --fix --quiet
Some manual cleanup is still necessary as headers that were missing header
guards outright will have them inserted before the license block (we prefer
them after).
54 lines
3.0 KiB
C
54 lines
3.0 KiB
C
//===-- Definition of macros from sys/time.h ------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_MACROS_LINUX_SYS_TIME_MACROS_H
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#define LLVM_LIBC_MACROS_LINUX_SYS_TIME_MACROS_H
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// Add two timevals and put the result in timeval_ptr_result. If the resulting
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// usec value is greater than 999,999 then the microseconds are turned into full
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// seconds (1,000,000 is subtracted from usec and 1 is added to sec).
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#define timeradd(timeval_ptr_a, timeval_ptr_b, timeval_ptr_result) \
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(timeval_ptr_result)->tv_sec = \
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(timeval_ptr_a)->tv_sec + (timeval_ptr_b)->tv_sec + \
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(((timeval_ptr_a)->tv_usec + (timeval_ptr_b)->tv_usec) >= 1000000 ? 1 \
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: 0); \
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(timeval_ptr_result)->tv_usec = \
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(timeval_ptr_a)->tv_usec + (timeval_ptr_b)->tv_usec - \
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(((timeval_ptr_a)->tv_usec + (timeval_ptr_b)->tv_usec) >= 1000000 \
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? 1000000 \
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: 0);
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// Subtract two timevals and put the result in timeval_ptr_result. If the
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// resulting usec value is less than 0 then 1,000,000 is added to usec and 1 is
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// subtracted from sec.
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#define timersub(timeval_ptr_a, timeval_ptr_b, timeval_ptr_result) \
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(timeval_ptr_result)->tv_sec = \
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(timeval_ptr_a)->tv_sec - (timeval_ptr_b)->tv_sec - \
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(((timeval_ptr_a)->tv_usec - (timeval_ptr_b)->tv_usec) < 0 ? 1 : 0); \
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(timeval_ptr_result)->tv_usec = \
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(timeval_ptr_a)->tv_usec - (timeval_ptr_b)->tv_usec + \
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(((timeval_ptr_a)->tv_usec - (timeval_ptr_b)->tv_usec) < 0 ? 1000000 \
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: 0);
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// Reset a timeval to the epoch.
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#define timerclear(timeval_ptr) \
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(timeval_ptr)->tv_sec = 0; \
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(timeval_ptr)->tv_usec = 0;
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// Determine if a timeval is set to the epoch.
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#define timerisset(timeval_ptr) \
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(timeval_ptr)->tv_sec != 0 || (timeval_ptr)->tv_usec != 0;
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// Compare two timevals using CMP.
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#define timercmp(timeval_ptr_a, timeval_ptr_b, CMP) \
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(((timeval_ptr_a)->tv_sec == (timeval_ptr_b)->tv_sec) \
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? ((timeval_ptr_a)->tv_usec CMP(timeval_ptr_b)->tv_usec) \
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: ((timeval_ptr_a)->tv_sec CMP(timeval_ptr_b)->tv_sec))
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#endif // LLVM_LIBC_MACROS_LINUX_SYS_TIME_MACROS_H
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