mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-27 19:50:08 +01:00
f307e12080
Clang 14 has a new warning "-Wbitwise-instead-of-logical", and it warns
about our usage with NM_IN_SET_SE()/NM_IN_STRSET_SE(). It complains that we
are using '|' with boolean operands. Which is true (and intended), as we bitwise-or
the result of the '==' comparisons.
Work around the warning by casting the operands to "int". Note that
in C, the comparison operators have already a type "int", so this cast
should not result in any changes in the compiled code.
../src/libnm-core-impl/tests/test-general.c:9415:17: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
_ASSERT(2, !NM_IN_SET_SE(-1, G(1), G(2)));
~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/libnm-std-aux/nm-std-aux.h:800:30: note: expanded from macro 'NM_IN_SET_SE'
#define NM_IN_SET_SE(x, ...) _NM_IN_SET(|, typeof(x), x, __VA_ARGS__)
^
../src/libnm-std-aux/nm-std-aux.h:789:39: note: expanded from macro '_NM_IN_SET'
!!(NM_VA_ARGS_FOREACH(, , op, _NM_IN_SET_OP, __VA_ARGS__)); \
^
../src/libnm-std-aux/nm-std-aux.h:772:20: note: expanded from macro 'NM_VA_ARGS_FOREACH'
op, \
^
note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
../src/libnm-glib-aux/nm-macros-internal.h:1603:47: note: expanded from macro '_G_BOOLEAN_EXPR'
#define _G_BOOLEAN_EXPR(expr) NM_BOOLEAN_EXPR(expr)
~~~~~~~~~~~~~~~~^~~~~
../src/libnm-std-aux/nm-std-aux.h:167:62: note: expanded from macro 'NM_BOOLEAN_EXPR'
#define NM_BOOLEAN_EXPR(expr) _NM_BOOLEAN_EXPR_IMPL(NM_UNIQ, expr)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
../src/libnm-std-aux/nm-std-aux.h:161:13: note: expanded from macro '_NM_BOOLEAN_EXPR_IMPL'
if (expr) \
^~~~
../src/libnm-core-impl/tests/test-general.c:9415:17: note: cast one or both operands to int to silence this warning
../src/libnm-std-aux/nm-std-aux.h:800:30: note: expanded from macro 'NM_IN_SET_SE'
#define NM_IN_SET_SE(x, ...) _NM_IN_SET(|, typeof(x), x, __VA_ARGS__)
^
../src/libnm-std-aux/nm-std-aux.h:789:39: note: expanded from macro '_NM_IN_SET'
!!(NM_VA_ARGS_FOREACH(, , op, _NM_IN_SET_OP, __VA_ARGS__)); \
^
1292 lines
68 KiB
C
1292 lines
68 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#ifndef __NM_STD_AUX_H__
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#define __NM_STD_AUX_H__
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#include <assert.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stddef.h>
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/*****************************************************************************/
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#define _nm_packed __attribute__((__packed__))
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#define _nm_unused __attribute__((__unused__))
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#define _nm_used __attribute__((__used__))
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#define _nm_pure __attribute__((__pure__))
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#define _nm_const __attribute__((__const__))
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#define _nm_warn_unused_result __attribute__((__warn_unused_result__))
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#define _nm_printf(a, b) __attribute__((__format__(__printf__, a, b)))
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#define _nm_align(s) __attribute__((__aligned__(s)))
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#define _nm_section(s) __attribute__((__section__(s)))
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#define _nm_alignof(type) __alignof(type)
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#define _nm_alignas(type) _nm_align(_nm_alignof(type))
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#define _nm_deprecated(msg) __attribute__((__deprecated__(msg)))
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#define _nm_retain
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#if defined(__clang__) && defined(__has_attribute)
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#if __has_attribute(__retain__)
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/* __attribute__((__retain__)) is supported in clang 13+, but is warned about
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* as an unknown attribute in older versions. We assume older versions are used
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* together with linkers that do not require the attribute.
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*
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* Ideally __has_attribute(__retain__) would be checked in other compilers as
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* well, but it is broken in GCC (bug 99587). Limit it to clang for now, as it
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* is only known to be needed for linking lld. */
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#undef _nm_retain
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#define _nm_retain __attribute__((__retain__))
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#endif
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#endif
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#if defined(__clang__) && __clang_major__ == 13
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/* Clang 13 can emit -Wunused-but-set-variable warning for cleanup variables
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* that are only assigned (never used otherwise). Hack around */
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#define _nm_auto_extra _nm_unused
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#else
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#define _nm_auto_extra
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#endif
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#define nm_auto(fcn) _nm_auto_extra __attribute__((__cleanup__(fcn)))
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#define _nm_nil
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/* This is required to make LTO working.
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*
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* See https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/76#note_112694
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* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48200#c28
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*/
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#ifndef __clang__
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#define _nm_externally_visible __attribute__((__externally_visible__))
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#else
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#define _nm_externally_visible
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#endif
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#if __GNUC__ >= 7
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#define _nm_fallthrough __attribute__((__fallthrough__))
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#else
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#define _nm_fallthrough
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#endif
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/*****************************************************************************/
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#ifndef _NM_CC_SUPPORT_AUTO_TYPE
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#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)))
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#define _NM_CC_SUPPORT_AUTO_TYPE 1
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#else
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#define _NM_CC_SUPPORT_AUTO_TYPE 0
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#endif
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#endif
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#if _NM_CC_SUPPORT_AUTO_TYPE
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#define _nm_auto_type __auto_type
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#endif
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#ifndef _NM_CC_SUPPORT_GENERIC
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/* In the meantime, NetworkManager requires C11 and _Generic() should always be available.
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* However, shared/nm-utils may also be used in VPN/applet, which possibly did not yet
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* bump the C standard requirement. Leave this for the moment, but eventually we can
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* drop it.
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*
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* Technically, gcc 4.9 already has some support for _Generic(). But there seems
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* to be issues with propagating "const char *[5]" to "const char **". Only assume
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* we have _Generic() since gcc 5. */
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#if (defined(__GNUC__) && __GNUC__ >= 5) || (defined(__clang__))
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#define _NM_CC_SUPPORT_GENERIC 1
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#else
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#define _NM_CC_SUPPORT_GENERIC 0
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#endif
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#endif
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/*****************************************************************************/
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#ifdef __CHECKER__
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#define _nm_bitwise __attribute__((__bitwise__))
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#define _nm_force __attribute__((__force__))
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#else
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#define _nm_bitwise
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#define _nm_force
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#endif
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typedef uint16_t _nm_bitwise nm_le16_t;
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typedef uint16_t _nm_bitwise nm_be16_t;
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typedef uint32_t _nm_bitwise nm_le32_t;
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typedef uint32_t _nm_bitwise nm_be32_t;
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typedef uint64_t _nm_bitwise nm_le64_t;
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typedef uint64_t _nm_bitwise nm_be64_t;
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/*****************************************************************************/
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#ifdef thread_local
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#define _nm_thread_local thread_local
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/*
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* Don't break on glibc < 2.16 that doesn't define __STDC_NO_THREADS__
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* see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769
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*/
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#elif __STDC_VERSION__ >= 201112L \
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&& !(defined(__STDC_NO_THREADS__) \
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|| (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16))
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#define _nm_thread_local _Thread_local
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#else
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#define _nm_thread_local __thread
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#endif
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/*****************************************************************************/
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#define _NM_DUMMY_STRUCT_FOR_TRAILING_SEMICOLON struct _nm_dummy_struct_for_trailing_semicolon
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/*****************************************************************************/
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#define NM_BIT(n) (1ull << (n))
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/*****************************************************************************/
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#define NM_PASTE_ARGS(identifier1, identifier2) identifier1##identifier2
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#define NM_PASTE(identifier1, identifier2) NM_PASTE_ARGS(identifier1, identifier2)
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/* Taken from systemd's UNIQ_T and UNIQ macros. */
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#define NM_UNIQ_T(x, uniq) NM_PASTE(__unique_prefix_, NM_PASTE(x, uniq))
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#define NM_UNIQ __COUNTER__
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/*****************************************************************************/
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#define _NM_BOOLEAN_EXPR_IMPL(v, expr) \
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({ \
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int NM_UNIQ_T(V, v); \
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\
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if (expr) \
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NM_UNIQ_T(V, v) = 1; \
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else \
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NM_UNIQ_T(V, v) = 0; \
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NM_UNIQ_T(V, v); \
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})
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#define NM_BOOLEAN_EXPR(expr) _NM_BOOLEAN_EXPR_IMPL(NM_UNIQ, expr)
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#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
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#define NM_LIKELY(expr) (__builtin_expect(NM_BOOLEAN_EXPR(expr), 1))
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#define NM_UNLIKELY(expr) (__builtin_expect(NM_BOOLEAN_EXPR(expr), 0))
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#else
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#define NM_LIKELY(expr) NM_BOOLEAN_EXPR(expr)
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#define NM_UNLIKELY(expr) NM_BOOLEAN_EXPR(expr)
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#endif
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/*****************************************************************************/
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/* glib/C provides the following kind of assertions:
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* - assert() -- disable with NDEBUG
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* - g_return_if_fail() -- disable with G_DISABLE_CHECKS
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* - g_assert() -- disable with G_DISABLE_ASSERT
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* but they are all enabled by default and usually even production builds have
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* these kind of assertions enabled. It also means, that disabling assertions
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* is an untested configuration, and might have bugs.
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*
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* Add our own assertion macro nm_assert(), which is disabled by default and must
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* be explicitly enabled. They are useful for more expensive checks or checks that
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* depend less on runtime conditions (that is, are generally expected to be true). */
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#ifndef NM_MORE_ASSERTS
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#define NM_MORE_ASSERTS 0
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#endif
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#ifndef _nm_assert_call
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#define _nm_assert_call(cond) assert(cond)
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#define _nm_assert_call_not_reached() assert(0)
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#endif
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#if NM_MORE_ASSERTS
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#define nm_assert(cond) \
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({ \
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_nm_assert_call(cond); \
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1; \
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})
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#define nm_assert_se(cond) \
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({ \
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if (NM_LIKELY(cond)) { \
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; \
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} else { \
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_nm_assert_call(0 && (cond)); \
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} \
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1; \
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})
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#define nm_assert_not_reached() \
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({ \
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_nm_assert_call_not_reached(); \
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1; \
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})
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#else
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#define nm_assert(cond) \
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({ \
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if (0) { \
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if (cond) {} \
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} \
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1; \
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})
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#define nm_assert_se(cond) \
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({ \
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if (NM_LIKELY(cond)) { \
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; \
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} \
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1; \
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})
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#define nm_assert_not_reached() ({ 1; })
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#endif
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/* This is similar nm_assert_not_reached(), but it's supposed to be used only during
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* development. Like _XXX_ comments, they can be used as a marker that something still
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* needs to be done. */
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#define XXX(msg) \
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nm_assert(!"X" \
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"XX error: " msg "")
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#define nm_assert_unreachable_val(val) \
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({ \
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nm_assert_not_reached(); \
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(val); \
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})
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#define NM_STATIC_ASSERT(cond) static_assert(cond, "")
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#define NM_STATIC_ASSERT_EXPR_1(cond) \
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(sizeof(struct { char __static_assert_expr_1[(cond) ? 1 : -1]; }) == 1)
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#define NM_STATIC_ASSERT_EXPR_VOID(cond) \
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((void) (sizeof(struct { char __static_assert_expr_void[(cond) ? 1 : -1]; }) == 1))
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/*****************************************************************************/
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#define NM_N_ELEMENTS(arr) (sizeof(arr) / sizeof((arr)[0]))
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/*****************************************************************************/
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#define nm_offsetof(t, m) offsetof(t, m)
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#define nm_offsetofend(t, m) (nm_offsetof(t, m) + sizeof(((t *) NULL)->m))
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/*****************************************************************************/
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/* This does a compile time check that "type" is a suitable C type. It either
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* returns a compile time constant of 1 or it fails compilation. The point
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* is only in macros to check that a macro parameter (what we might pass to
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* sizeof() is really a type, and not a variable. */
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#define NM_ENSURE_IS_TYPE(type) (sizeof(void (*)(type[])) == sizeof(void (*)(void *)))
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/*****************************************************************************/
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#if _NM_CC_SUPPORT_GENERIC
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/* returns @value, if the type of @value matches @type.
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* This requires support for C11 _Generic(). If no support is
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* present, this returns @value directly.
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*
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* It's useful to check the let the compiler ensure that @value is
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* of a certain type. */
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#define _NM_ENSURE_TYPE(type, value) (_Generic((value), type : (value)))
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#define _NM_ENSURE_TYPE_CONST(type, value) \
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(_Generic((value), const type \
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: ((const type)(value)), const type const \
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: ((const type)(value)), type \
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: ((const type)(value)), type const \
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: ((const type)(value))))
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#else
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#define _NM_ENSURE_TYPE(type, value) (value)
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#define _NM_ENSURE_TYPE_CONST(type, value) ((const type)(value))
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#endif
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/* returns void, but does a compile time check that the argument is a pointer
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* (that is, can be converted to (const void *)). It does not actually evaluate
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* (value). That means, it's also safe to call _NM_ENSURE_POINTER(array[0]) if
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* array might be NULL. It's also safe to call on a macro argument that is
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* supposed to be evaluate at most once (this macro will not "execute" the
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* argument). */
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#define _NM_ENSURE_POINTER(value) \
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do { \
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_nm_unused const void *const _unused_for_type_check = 0 ? (value) : NULL; \
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} while (0)
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#if _NM_CC_SUPPORT_GENERIC && (!defined(__clang__) || __clang_major__ > 3)
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#define NM_STRUCT_OFFSET_ENSURE_TYPE(type, container, field) \
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(_Generic((&(((container *) NULL)->field))[0], type : nm_offsetof(container, field)))
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#else
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#define NM_STRUCT_OFFSET_ENSURE_TYPE(type, container, field) nm_offsetof(container, field)
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#endif
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/*****************************************************************************/
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static inline uint32_t
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nm_add_clamped_u32(uint32_t a, uint32_t b)
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{
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uint32_t c;
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/* returns a+b, or UINT32_MAX if the result would overflow. */
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c = a + b;
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if (c < a)
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return UINT32_MAX;
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return c;
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}
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static inline unsigned
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nm_mult_clamped_u(unsigned a, unsigned b)
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{
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unsigned c;
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/* returns a*b, or UINT_MAX if the result would overflow. */
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if (b == 0)
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return 0;
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c = a * b;
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if (c / b != a)
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return (unsigned) -1;
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return c;
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}
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/* glib's MIN()/MAX() macros don't have function-like behavior, in that they evaluate
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* the argument possibly twice.
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*
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* Taken from systemd's MIN()/MAX() macros. */
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#define NM_MIN(a, b) __NM_MIN(NM_UNIQ, a, NM_UNIQ, b)
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#define __NM_MIN(aq, a, bq, b) \
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({ \
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typeof(a) NM_UNIQ_T(A, aq) = (a); \
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typeof(b) NM_UNIQ_T(B, bq) = (b); \
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((NM_UNIQ_T(A, aq) < NM_UNIQ_T(B, bq)) ? NM_UNIQ_T(A, aq) : NM_UNIQ_T(B, bq)); \
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})
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#define NM_MAX(a, b) __NM_MAX(NM_UNIQ, a, NM_UNIQ, b)
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#define __NM_MAX(aq, a, bq, b) \
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({ \
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typeof(a) NM_UNIQ_T(A, aq) = (a); \
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typeof(b) NM_UNIQ_T(B, bq) = (b); \
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((NM_UNIQ_T(A, aq) > NM_UNIQ_T(B, bq)) ? NM_UNIQ_T(A, aq) : NM_UNIQ_T(B, bq)); \
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})
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#define NM_CLAMP(x, low, high) __NM_CLAMP(NM_UNIQ, x, NM_UNIQ, low, NM_UNIQ, high)
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#define __NM_CLAMP(xq, x, lowq, low, highq, high) \
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({ \
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typeof(x) NM_UNIQ_T(X, xq) = (x); \
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typeof(low) NM_UNIQ_T(LOW, lowq) = (low); \
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typeof(high) NM_UNIQ_T(HIGH, highq) = (high); \
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\
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((NM_UNIQ_T(X, xq) > NM_UNIQ_T(HIGH, highq)) ? NM_UNIQ_T(HIGH, highq) \
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: (NM_UNIQ_T(X, xq) < NM_UNIQ_T(LOW, lowq)) ? NM_UNIQ_T(LOW, lowq) \
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: NM_UNIQ_T(X, xq)); \
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})
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#define NM_MAX_WITH_CMP(cmp, a, b) \
|
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({ \
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typeof(a) _a = (a); \
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typeof(b) _b = (b); \
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\
|
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(((cmp(_a, _b)) >= 0) ? _a : _b); \
|
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})
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/* evaluates to (void) if _A or _B are not constant or of different types */
|
|
#define NM_CONST_MAX(_A, _B) \
|
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(__builtin_choose_expr((__builtin_constant_p(_A) && __builtin_constant_p(_B) \
|
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&& __builtin_types_compatible_p(typeof(_A), typeof(_B))), \
|
|
((_A) > (_B)) ? (_A) : (_B), \
|
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((void) 0)))
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|
|
/* Determine whether @x is a power of two (@x being an integer type).
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|
* Basically, this returns TRUE, if @x has exactly one bit set.
|
|
* For negative values and zero, this always returns FALSE. */
|
|
#define nm_utils_is_power_of_two(x) \
|
|
({ \
|
|
typeof(x) _x2 = (x); \
|
|
const typeof(_x2) _X_0 = ((typeof(_x2)) 0); \
|
|
const typeof(_x2) _X_1 = ((typeof(_x2)) 1); \
|
|
\
|
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((_x2 > _X_0) && ((_x2 & (_x2 - _X_1)) == _X_0)); \
|
|
})
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|
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#define nm_utils_is_power_of_two_or_zero(x) \
|
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({ \
|
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typeof(x) _x1 = (x); \
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\
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((_x1 == 0) || nm_utils_is_power_of_two(_x1)); \
|
|
})
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_SWAP(p_a, p_b) \
|
|
do { \
|
|
typeof(*(p_a)) *const _p_a = (p_a); \
|
|
typeof(*(p_a)) *const _p_b = (p_b); \
|
|
typeof(*(p_a)) _tmp; \
|
|
\
|
|
_tmp = *_p_a; \
|
|
*_p_a = *_p_b; \
|
|
*_p_b = _tmp; \
|
|
} while (0)
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* macro to return strlen() of a compile time string. */
|
|
#define NM_STRLEN(str) (sizeof("" str "") - 1u)
|
|
|
|
static inline size_t
|
|
_nm_ptrarray_len_impl(const void *const *array)
|
|
{
|
|
size_t n = 0;
|
|
|
|
if (array) {
|
|
while (array[n])
|
|
n++;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
/* returns the length of a NULL terminated array of pointers,
|
|
* like g_strv_length() does. The difference is:
|
|
* - it operates on arrays of pointers (of any kind, requiring no cast).
|
|
* - it accepts NULL to return zero. */
|
|
#define NM_PTRARRAY_LEN(array) \
|
|
({ \
|
|
_NM_ENSURE_POINTER((array)[0]); \
|
|
_nm_ptrarray_len_impl((const void *const *) (array)); \
|
|
})
|
|
|
|
/*****************************************************************************/
|
|
|
|
static inline int
|
|
nm_strcmp0(const char *s1, const char *s2)
|
|
{
|
|
int c;
|
|
|
|
/* like g_strcmp0(), but this is inlinable.
|
|
*
|
|
* Also, it is guaranteed to return either -1, 0, or 1. */
|
|
if (s1 == s2)
|
|
return 0;
|
|
if (!s1)
|
|
return -1;
|
|
if (!s2)
|
|
return 1;
|
|
c = strcmp(s1, s2);
|
|
if (c < 0)
|
|
return -1;
|
|
if (c > 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
nm_streq(const char *s1, const char *s2)
|
|
{
|
|
return strcmp(s1, s2) == 0;
|
|
}
|
|
|
|
static inline int
|
|
nm_streq0(const char *s1, const char *s2)
|
|
{
|
|
return (s1 == s2) || (s1 && s2 && strcmp(s1, s2) == 0);
|
|
}
|
|
|
|
/*
|
|
* Very similar to g_str_has_prefix() with the obvious meaning.
|
|
* Differences:
|
|
* 1) suffix is enforced to be a C string literal
|
|
* (it is thus more restricted, but you'll know it at compile time).
|
|
* 2) it accepts str==NULL
|
|
* (it is thus more forgiving than g_str_has_prefix())
|
|
* 3) it can get the job done with one strncmp() (with
|
|
* the length argument being a compile time constant, and compiler optimizing
|
|
* strncmp() call).
|
|
* Compare to g_str_has_prefix() which requires one call into glib, then
|
|
* one strlen() and one strncmp() call.
|
|
*
|
|
* If it compiles (re:1), NM_STR_HAS_PREFIX() can fully replace g_str_has_prefix().
|
|
* The other way is not necessarily possible due to 2).
|
|
*/
|
|
#define NM_STR_HAS_PREFIX(str, prefix) \
|
|
({ \
|
|
const char *const _str_has_prefix = (str); \
|
|
\
|
|
nm_assert(strlen(prefix) == NM_STRLEN(prefix)); \
|
|
\
|
|
_str_has_prefix && (strncmp(_str_has_prefix, "" prefix "", NM_STRLEN(prefix)) == 0); \
|
|
})
|
|
|
|
/*
|
|
* Very similar to g_str_has_suffix() with the obvious meaning.
|
|
* Differences:
|
|
* 1) suffix is enforced to be a C string literal
|
|
* (it is thus more restricted, but you'll know it at compile time).
|
|
* 2) it accepts str==NULL
|
|
* (it is thus more forgiving than g_str_has_suffix())
|
|
* 3) it can get the job done with one strlen() and one memcpy() call (with
|
|
* the length argument being a compile time constant, and compiler optimizing
|
|
* memcpy() call).
|
|
* Compare to g_str_has_suffix() which requires one call into glib, then
|
|
* two strlen() and one strcmp() call.
|
|
*
|
|
* If it compiles (re:1), NM_STR_HAS_SUFFIX() can fully replace g_str_has_suffix().
|
|
* The other way is not necessarily possible due to 2).
|
|
*/
|
|
#define NM_STR_HAS_SUFFIX(str, suffix) \
|
|
({ \
|
|
const char *const _str_has_suffix = (str); \
|
|
size_t _l; \
|
|
\
|
|
nm_assert(strlen(suffix) == NM_STRLEN(suffix)); \
|
|
\
|
|
(_str_has_suffix && ((_l = strlen(_str_has_suffix)) >= NM_STRLEN(suffix)) \
|
|
&& (memcmp(&_str_has_suffix[_l - NM_STRLEN(suffix)], "" suffix "", NM_STRLEN(suffix)) \
|
|
== 0)); \
|
|
})
|
|
|
|
/* whether @str starts with the string literal @prefix and is followed by
|
|
* some other text. It is like NM_STR_HAS_PREFIX() && !nm_streq() together. */
|
|
#define NM_STR_HAS_PREFIX_WITH_MORE(str, prefix) \
|
|
({ \
|
|
const char *const _str_has_prefix_with_more = (str); \
|
|
\
|
|
NM_STR_HAS_PREFIX(_str_has_prefix_with_more, "" prefix "") \
|
|
&&_str_has_prefix_with_more[NM_STRLEN(prefix)] != '\0'; \
|
|
})
|
|
|
|
#define NM_STR_HAS_SUFFIX_WITH_MORE(str, suffix) \
|
|
({ \
|
|
const char *const _str_has_suffix = (str); \
|
|
size_t _l; \
|
|
\
|
|
nm_assert(strlen(suffix) == NM_STRLEN(suffix)); \
|
|
\
|
|
(_str_has_suffix && ((_l = strlen(_str_has_suffix)) > NM_STRLEN(suffix)) \
|
|
&& (memcmp(&_str_has_suffix[_l - NM_STRLEN(suffix)], "" suffix "", NM_STRLEN(suffix)) \
|
|
== 0)); \
|
|
})
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* clang-format off */
|
|
#define _NM_MACRO_SELECT_ARG_120(_empty, \
|
|
_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, \
|
|
_11, _12, _13, _14, _15, _16, _17, _18, _19, _20, \
|
|
_21, _22, _23, _24, _25, _26, _27, _28, _29, _30, \
|
|
_31, _32, _33, _34, _35, _36, _37, _38, _39, _40, \
|
|
_41, _42, _43, _44, _45, _46, _47, _48, _49, _50, \
|
|
_51, _52, _53, _54, _55, _56, _57, _58, _59, _60, \
|
|
_61, _62, _63, _64, _65, _66, _67, _68, _69, _70, \
|
|
_71, _72, _73, _74, _75, _76, _77, _78, _79, _80, \
|
|
_81, _82, _83, _84, _85, _86, _87, _88, _89, _90, \
|
|
_91, _92, _93, _94, _95, _96, _97, _98, _99, _100, \
|
|
_101, _102, _103, _104, _105, _106, _107, _108, _109, _110, \
|
|
_111, _112, _113, _114, _115, _116, _117, _118, _119, _120, \
|
|
N, \
|
|
...) \
|
|
N
|
|
|
|
#define NM_NARG(...) \
|
|
_NM_MACRO_SELECT_ARG_120(, ##__VA_ARGS__, \
|
|
120, \
|
|
119, 118, 117, 116, 115, 114, 113, 112, 111, 110, \
|
|
109, 108, 107, 106, 105, 104, 103, 102, 101, 100, \
|
|
99, 98, 97, 96, 95, 94, 93, 92, 91, 90, \
|
|
89, 88, 87, 86, 85, 84, 83, 82, 81, 80, \
|
|
79, 78, 77, 76, 75, 74, 73, 72, 71, 70, \
|
|
69, 68, 67, 66, 65, 64, 63, 62, 61, 60, \
|
|
59, 58, 57, 56, 55, 54, 53, 52, 51, 50, \
|
|
49, 48, 47, 46, 45, 44, 43, 42, 41, 40, \
|
|
39, 38, 37, 36, 35, 34, 33, 32, 31, 30, \
|
|
29, 28, 27, 26, 25, 24, 23, 22, 21, 20, \
|
|
19, 18, 17, 16, 15, 14, 13, 12, 11, 10, \
|
|
9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
|
|
#define NM_NARG_MAX1(...) \
|
|
_NM_MACRO_SELECT_ARG_120(, ##__VA_ARGS__, \
|
|
1, \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 110 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 100 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 90 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 80 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 70 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 60 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 50 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 40 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 30 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 20 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 10 */ \
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 0)
|
|
#define NM_NARG_MAX2(...) \
|
|
_NM_MACRO_SELECT_ARG_120(, ##__VA_ARGS__, \
|
|
2, \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 110 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 100 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 90 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 80 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 70 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 60 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 50 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 40 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 30 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 20 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 10 */ \
|
|
2, 2, 2, 2, 2, 2, 2, 2, 1, 0)
|
|
/* clang-format on */
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define _NM_MACRO_IDENTITY(...) __VA_ARGS__
|
|
|
|
#define _NM_MACRO_SELECT_FIRST(...) _NM_MACRO_SELECT_FIRST_IMPL(__VA_ARGS__, throwaway)
|
|
#define _NM_MACRO_SELECT_FIRST_IMPL(first, ...) first
|
|
|
|
#define _NM_MACRO_CALL(macro, ...) macro(__VA_ARGS__)
|
|
#define _NM_MACRO_CALL2(macro, ...) macro(__VA_ARGS__)
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* clang-format off */
|
|
#define _NM_VA_ARGS_FOREACH_0(prefix, postfix, sep, op)
|
|
#define _NM_VA_ARGS_FOREACH_1(prefix, postfix, sep, op, x) prefix _NM_MACRO_CALL2(op, x, 0 ) postfix
|
|
#define _NM_VA_ARGS_FOREACH_2(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 1 ) postfix sep _NM_VA_ARGS_FOREACH_1(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_3(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 2 ) postfix sep _NM_VA_ARGS_FOREACH_2(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_4(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 3 ) postfix sep _NM_VA_ARGS_FOREACH_3(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_5(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 4 ) postfix sep _NM_VA_ARGS_FOREACH_4(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_6(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 5 ) postfix sep _NM_VA_ARGS_FOREACH_5(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_7(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 6 ) postfix sep _NM_VA_ARGS_FOREACH_6(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_8(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 7 ) postfix sep _NM_VA_ARGS_FOREACH_7(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_9(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 8 ) postfix sep _NM_VA_ARGS_FOREACH_8(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_10(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 9 ) postfix sep _NM_VA_ARGS_FOREACH_9(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_11(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 10 ) postfix sep _NM_VA_ARGS_FOREACH_10(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_12(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 11 ) postfix sep _NM_VA_ARGS_FOREACH_11(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_13(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 12 ) postfix sep _NM_VA_ARGS_FOREACH_12(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_14(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 13 ) postfix sep _NM_VA_ARGS_FOREACH_13(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_15(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 14 ) postfix sep _NM_VA_ARGS_FOREACH_14(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_16(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 15 ) postfix sep _NM_VA_ARGS_FOREACH_15(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_17(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 16 ) postfix sep _NM_VA_ARGS_FOREACH_16(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_18(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 17 ) postfix sep _NM_VA_ARGS_FOREACH_17(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_19(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 18 ) postfix sep _NM_VA_ARGS_FOREACH_18(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_20(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 19 ) postfix sep _NM_VA_ARGS_FOREACH_19(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_21(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 20 ) postfix sep _NM_VA_ARGS_FOREACH_20(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_22(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 21 ) postfix sep _NM_VA_ARGS_FOREACH_21(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_23(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 22 ) postfix sep _NM_VA_ARGS_FOREACH_22(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_24(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 23 ) postfix sep _NM_VA_ARGS_FOREACH_23(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_25(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 24 ) postfix sep _NM_VA_ARGS_FOREACH_24(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_26(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 25 ) postfix sep _NM_VA_ARGS_FOREACH_25(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_27(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 26 ) postfix sep _NM_VA_ARGS_FOREACH_26(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_28(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 27 ) postfix sep _NM_VA_ARGS_FOREACH_27(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_29(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 28 ) postfix sep _NM_VA_ARGS_FOREACH_28(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_30(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 29 ) postfix sep _NM_VA_ARGS_FOREACH_29(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_31(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 30 ) postfix sep _NM_VA_ARGS_FOREACH_30(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_32(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 31 ) postfix sep _NM_VA_ARGS_FOREACH_31(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_33(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 32 ) postfix sep _NM_VA_ARGS_FOREACH_32(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_34(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 33 ) postfix sep _NM_VA_ARGS_FOREACH_33(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_35(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 34 ) postfix sep _NM_VA_ARGS_FOREACH_34(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_36(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 35 ) postfix sep _NM_VA_ARGS_FOREACH_35(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_37(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 36 ) postfix sep _NM_VA_ARGS_FOREACH_36(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_38(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 37 ) postfix sep _NM_VA_ARGS_FOREACH_37(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_39(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 38 ) postfix sep _NM_VA_ARGS_FOREACH_38(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_40(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 39 ) postfix sep _NM_VA_ARGS_FOREACH_39(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_41(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 40 ) postfix sep _NM_VA_ARGS_FOREACH_40(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_42(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 41 ) postfix sep _NM_VA_ARGS_FOREACH_41(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_43(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 42 ) postfix sep _NM_VA_ARGS_FOREACH_42(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_44(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 43 ) postfix sep _NM_VA_ARGS_FOREACH_43(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_45(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 44 ) postfix sep _NM_VA_ARGS_FOREACH_44(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_46(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 45 ) postfix sep _NM_VA_ARGS_FOREACH_45(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_47(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 46 ) postfix sep _NM_VA_ARGS_FOREACH_46(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_48(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 47 ) postfix sep _NM_VA_ARGS_FOREACH_47(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_49(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 48 ) postfix sep _NM_VA_ARGS_FOREACH_48(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_50(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 49 ) postfix sep _NM_VA_ARGS_FOREACH_49(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_51(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 50 ) postfix sep _NM_VA_ARGS_FOREACH_50(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_52(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 51 ) postfix sep _NM_VA_ARGS_FOREACH_51(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_53(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 52 ) postfix sep _NM_VA_ARGS_FOREACH_52(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_54(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 53 ) postfix sep _NM_VA_ARGS_FOREACH_53(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_55(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 54 ) postfix sep _NM_VA_ARGS_FOREACH_54(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_56(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 55 ) postfix sep _NM_VA_ARGS_FOREACH_55(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_57(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 56 ) postfix sep _NM_VA_ARGS_FOREACH_56(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_58(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 57 ) postfix sep _NM_VA_ARGS_FOREACH_57(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_59(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 58 ) postfix sep _NM_VA_ARGS_FOREACH_58(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_60(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 59 ) postfix sep _NM_VA_ARGS_FOREACH_59(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_61(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 10 ) postfix sep _NM_VA_ARGS_FOREACH_60(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_62(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 61 ) postfix sep _NM_VA_ARGS_FOREACH_61(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_63(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 62 ) postfix sep _NM_VA_ARGS_FOREACH_62(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_64(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 63 ) postfix sep _NM_VA_ARGS_FOREACH_63(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_65(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 64 ) postfix sep _NM_VA_ARGS_FOREACH_64(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_66(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 65 ) postfix sep _NM_VA_ARGS_FOREACH_65(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_67(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 66 ) postfix sep _NM_VA_ARGS_FOREACH_66(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_68(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 67 ) postfix sep _NM_VA_ARGS_FOREACH_67(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_69(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 68 ) postfix sep _NM_VA_ARGS_FOREACH_68(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_70(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 69 ) postfix sep _NM_VA_ARGS_FOREACH_69(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_71(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 70 ) postfix sep _NM_VA_ARGS_FOREACH_70(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_72(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 71 ) postfix sep _NM_VA_ARGS_FOREACH_71(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_73(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 72 ) postfix sep _NM_VA_ARGS_FOREACH_72(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_74(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 73 ) postfix sep _NM_VA_ARGS_FOREACH_73(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_75(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 74 ) postfix sep _NM_VA_ARGS_FOREACH_74(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_76(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 75 ) postfix sep _NM_VA_ARGS_FOREACH_75(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_77(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 76 ) postfix sep _NM_VA_ARGS_FOREACH_76(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_78(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 77 ) postfix sep _NM_VA_ARGS_FOREACH_77(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_79(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 78 ) postfix sep _NM_VA_ARGS_FOREACH_78(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_80(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 79 ) postfix sep _NM_VA_ARGS_FOREACH_79(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_81(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 80 ) postfix sep _NM_VA_ARGS_FOREACH_80(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_82(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 81 ) postfix sep _NM_VA_ARGS_FOREACH_81(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_83(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 82 ) postfix sep _NM_VA_ARGS_FOREACH_82(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_84(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 83 ) postfix sep _NM_VA_ARGS_FOREACH_83(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_85(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 84 ) postfix sep _NM_VA_ARGS_FOREACH_84(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_86(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 85 ) postfix sep _NM_VA_ARGS_FOREACH_85(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_87(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 86 ) postfix sep _NM_VA_ARGS_FOREACH_86(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_88(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 87 ) postfix sep _NM_VA_ARGS_FOREACH_87(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_89(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 88 ) postfix sep _NM_VA_ARGS_FOREACH_88(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_90(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 89 ) postfix sep _NM_VA_ARGS_FOREACH_89(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_91(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 90 ) postfix sep _NM_VA_ARGS_FOREACH_90(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_92(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 91 ) postfix sep _NM_VA_ARGS_FOREACH_91(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_93(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 92 ) postfix sep _NM_VA_ARGS_FOREACH_92(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_94(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 93 ) postfix sep _NM_VA_ARGS_FOREACH_93(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_95(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 94 ) postfix sep _NM_VA_ARGS_FOREACH_94(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_96(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 95 ) postfix sep _NM_VA_ARGS_FOREACH_95(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_97(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 96 ) postfix sep _NM_VA_ARGS_FOREACH_96(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_98(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 97 ) postfix sep _NM_VA_ARGS_FOREACH_97(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_99(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 98 ) postfix sep _NM_VA_ARGS_FOREACH_98(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_100(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 99 ) postfix sep _NM_VA_ARGS_FOREACH_99(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_101(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 100) postfix sep _NM_VA_ARGS_FOREACH_100(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_102(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 101) postfix sep _NM_VA_ARGS_FOREACH_101(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_103(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 102) postfix sep _NM_VA_ARGS_FOREACH_102(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_104(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 103) postfix sep _NM_VA_ARGS_FOREACH_103(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_105(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 104) postfix sep _NM_VA_ARGS_FOREACH_104(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_106(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 105) postfix sep _NM_VA_ARGS_FOREACH_105(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_107(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 106) postfix sep _NM_VA_ARGS_FOREACH_106(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_108(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 107) postfix sep _NM_VA_ARGS_FOREACH_107(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_109(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 108) postfix sep _NM_VA_ARGS_FOREACH_108(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_110(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 109) postfix sep _NM_VA_ARGS_FOREACH_109(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_111(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 100) postfix sep _NM_VA_ARGS_FOREACH_110(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_112(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 111) postfix sep _NM_VA_ARGS_FOREACH_111(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_113(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 112) postfix sep _NM_VA_ARGS_FOREACH_112(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_114(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 113) postfix sep _NM_VA_ARGS_FOREACH_113(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_115(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 114) postfix sep _NM_VA_ARGS_FOREACH_114(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_116(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 115) postfix sep _NM_VA_ARGS_FOREACH_115(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_117(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 116) postfix sep _NM_VA_ARGS_FOREACH_116(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_118(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 117) postfix sep _NM_VA_ARGS_FOREACH_117(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_119(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 118) postfix sep _NM_VA_ARGS_FOREACH_118(prefix, postfix, sep, op, __VA_ARGS__)
|
|
#define _NM_VA_ARGS_FOREACH_120(prefix, postfix, sep, op, x, ...) prefix _NM_MACRO_CALL2(op, x, 119) postfix sep _NM_VA_ARGS_FOREACH_119(prefix, postfix, sep, op, __VA_ARGS__)
|
|
/* clang-format on */
|
|
#define NM_VA_ARGS_FOREACH(prefix, postfix, sep, op, ...) \
|
|
_NM_MACRO_CALL(NM_PASTE(_NM_VA_ARGS_FOREACH_, NM_NARG(__VA_ARGS__)), \
|
|
prefix, \
|
|
postfix, \
|
|
sep, \
|
|
op, \
|
|
##__VA_ARGS__)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_VA_ARGS_JOIN(sep, ...) NM_VA_ARGS_FOREACH(, , sep, _NM_MACRO_SELECT_FIRST, __VA_ARGS__)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define _NM_IN_SET_OP(x, idx) ((int) (_x == (x)))
|
|
#define _NM_IN_SET(op, type, x, ...) \
|
|
({ \
|
|
type _x = (x); \
|
|
\
|
|
/* trigger a -Wenum-compare warning */ \
|
|
nm_assert(true || _x == (x)); \
|
|
\
|
|
!!(NM_VA_ARGS_FOREACH(, , op, _NM_IN_SET_OP, __VA_ARGS__)); \
|
|
})
|
|
|
|
/* Beware that this does short-circuit evaluation (use "||" instead of "|")
|
|
* which has a possibly unexpected non-function-like behavior.
|
|
* Use NM_IN_SET_SE if you need all arguments to be evaluated. */
|
|
#define NM_IN_SET(x, ...) _NM_IN_SET(||, typeof(x), x, __VA_ARGS__)
|
|
|
|
/* "SE" stands for "side-effect". Contrary to NM_IN_SET(), this does not do
|
|
* short-circuit evaluation, which can make a difference if the arguments have
|
|
* side-effects. */
|
|
#define NM_IN_SET_SE(x, ...) _NM_IN_SET(|, typeof(x), x, __VA_ARGS__)
|
|
|
|
/* the *_TYPED forms allow to explicitly select the type of "x". This is useful
|
|
* if "x" doesn't support typeof (bitfields) or you want to gracefully convert
|
|
* a type using automatic type conversion rules (but not forcing the conversion
|
|
* with a cast). */
|
|
#define NM_IN_SET_TYPED(type, x, ...) _NM_IN_SET(||, type, x, __VA_ARGS__)
|
|
#define NM_IN_SET_SE_TYPED(type, x, ...) _NM_IN_SET(|, type, x, __VA_ARGS__)
|
|
|
|
/*****************************************************************************/
|
|
|
|
static inline int
|
|
_NM_IN_STRSET_EVAL_op_streq(const char *x1, const char *x)
|
|
{
|
|
return x && nm_streq(x1, x);
|
|
}
|
|
|
|
#define _NM_IN_STRSET_EVAL_OP_NULL(x, idx) ((int) (((const char *) NULL) == (x)))
|
|
#define _NM_IN_STRSET_EVAL_OP_STREQ(x, idx) _NM_IN_STRSET_EVAL_op_streq(_x1, x)
|
|
#define _NM_IN_STRSET_EVAL(op, eval_op, x1, ...) \
|
|
({ \
|
|
const char *const _x1 = (x1); \
|
|
\
|
|
!!(_x1 ? (NM_VA_ARGS_FOREACH(, , op, eval_op, __VA_ARGS__)) \
|
|
: (NM_VA_ARGS_FOREACH(, , op, _NM_IN_STRSET_EVAL_OP_NULL, __VA_ARGS__))); \
|
|
})
|
|
|
|
/* Beware that this does short-circuit evaluation (use "||" instead of "|")
|
|
* which has a possibly unexpected non-function-like behavior.
|
|
* Use NM_IN_STRSET_SE if you need all arguments to be evaluated. */
|
|
#define NM_IN_STRSET(x1, ...) _NM_IN_STRSET_EVAL(||, _NM_IN_STRSET_EVAL_OP_STREQ, x1, __VA_ARGS__)
|
|
|
|
/* "SE" stands for "side-effect". Contrary to NM_IN_STRSET(), this does not do
|
|
* short-circuit evaluation, which can make a difference if the arguments have
|
|
* side-effects. */
|
|
#define NM_IN_STRSET_SE(x1, ...) _NM_IN_STRSET_EVAL(|, _NM_IN_STRSET_EVAL_OP_STREQ, x1, __VA_ARGS__)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_STRCHAR_ALL(str, ch_iter, predicate) \
|
|
({ \
|
|
int _val = true; \
|
|
const char *_str = (str); \
|
|
\
|
|
if (_str) { \
|
|
for (;;) { \
|
|
const char ch_iter = _str[0]; \
|
|
\
|
|
if (ch_iter != '\0') { \
|
|
if (predicate) { \
|
|
_str++; \
|
|
continue; \
|
|
} \
|
|
_val = false; \
|
|
} \
|
|
break; \
|
|
} \
|
|
} \
|
|
_val; \
|
|
})
|
|
|
|
#define NM_STRCHAR_ANY(str, ch_iter, predicate) \
|
|
({ \
|
|
int _val = false; \
|
|
const char *_str = (str); \
|
|
\
|
|
if (_str) { \
|
|
for (;;) { \
|
|
const char ch_iter = _str[0]; \
|
|
\
|
|
if (ch_iter != '\0') { \
|
|
if (predicate) { \
|
|
; \
|
|
} else { \
|
|
_str++; \
|
|
continue; \
|
|
} \
|
|
_val = true; \
|
|
} \
|
|
break; \
|
|
} \
|
|
} \
|
|
_val; \
|
|
})
|
|
|
|
/*****************************************************************************/
|
|
|
|
/**
|
|
* nm_close:
|
|
*
|
|
* Like close() but throws an assertion if the input fd is
|
|
* invalid. Closing an invalid fd is a programming error, so
|
|
* it's better to catch it early.
|
|
*/
|
|
static inline int
|
|
nm_close(int fd)
|
|
{
|
|
int r;
|
|
|
|
r = close(fd);
|
|
nm_assert(r != -1 || fd < 0 || errno != EBADF);
|
|
return r;
|
|
}
|
|
|
|
static inline bool
|
|
nm_clear_fd(int *p_fd)
|
|
{
|
|
int fd;
|
|
|
|
if (!p_fd || (fd = *p_fd) < 0)
|
|
return false;
|
|
|
|
*p_fd = -1;
|
|
nm_close(fd);
|
|
return true;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
|
|
/* Note: @value is only evaluated when *out_val is present.
|
|
* Thus,
|
|
* NM_SET_OUT (out_str, g_strdup ("hallo"));
|
|
* does the right thing.
|
|
*/
|
|
#define NM_SET_OUT(out_val, value) \
|
|
({ \
|
|
typeof(*(out_val)) *_out_val = (out_val); \
|
|
\
|
|
if (_out_val) { \
|
|
*_out_val = (value); \
|
|
} \
|
|
\
|
|
(!!_out_val); \
|
|
})
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_AUTO_DEFINE_FCN_VOID(CastType, name, func) \
|
|
static inline void name(void *v) \
|
|
{ \
|
|
func(*((CastType *) v)); \
|
|
} \
|
|
_NM_DUMMY_STRUCT_FOR_TRAILING_SEMICOLON
|
|
|
|
#define NM_AUTO_DEFINE_FCN_VOID0(CastType, name, func) \
|
|
static inline void name(void *v) \
|
|
{ \
|
|
if (*((CastType *) v)) \
|
|
func(*((CastType *) v)); \
|
|
} \
|
|
_NM_DUMMY_STRUCT_FOR_TRAILING_SEMICOLON
|
|
|
|
#define NM_AUTO_DEFINE_FCN(Type, name, func) \
|
|
static inline void name(Type *v) \
|
|
{ \
|
|
func(*v); \
|
|
} \
|
|
_NM_DUMMY_STRUCT_FOR_TRAILING_SEMICOLON
|
|
|
|
#define NM_AUTO_DEFINE_FCN0(Type, name, func) \
|
|
static inline void name(Type *v) \
|
|
{ \
|
|
if (*v) \
|
|
func(*v); \
|
|
} \
|
|
_NM_DUMMY_STRUCT_FOR_TRAILING_SEMICOLON
|
|
|
|
/*****************************************************************************/
|
|
|
|
/**
|
|
* nm_auto_free:
|
|
*
|
|
* Call free() on a variable location when it goes out of scope.
|
|
* This is for pointers that are allocated with malloc() instead of
|
|
* g_malloc().
|
|
*
|
|
* In practice, since glib 2.45, g_malloc()/g_free() always wraps malloc()/free().
|
|
* See bgo#751592. In that case, it would be safe to free pointers allocated with
|
|
* malloc() with gs_free or g_free().
|
|
*
|
|
* However, let's never mix them. To free malloc'ed memory, always use
|
|
* free() or nm_auto_free.
|
|
*/
|
|
NM_AUTO_DEFINE_FCN_VOID0(void *, _nm_auto_free_impl, free);
|
|
#define nm_auto_free nm_auto(_nm_auto_free_impl)
|
|
|
|
static inline void
|
|
_nm_auto_protect_errno(const int *p_saved_errno)
|
|
{
|
|
errno = *p_saved_errno;
|
|
}
|
|
#define NM_AUTO_PROTECT_ERRNO(errsv_saved) \
|
|
nm_auto(_nm_auto_protect_errno) _nm_unused const int errsv_saved = (errno)
|
|
|
|
/*****************************************************************************/
|
|
|
|
static inline void
|
|
_nm_auto_close(int *pfd)
|
|
{
|
|
if (*pfd >= 0) {
|
|
NM_AUTO_PROTECT_ERRNO(errsv);
|
|
(void) nm_close(*pfd);
|
|
}
|
|
}
|
|
#define nm_auto_close nm_auto(_nm_auto_close)
|
|
|
|
static inline void
|
|
_nm_auto_fclose(FILE **pfd)
|
|
{
|
|
if (*pfd) {
|
|
NM_AUTO_PROTECT_ERRNO(errsv);
|
|
(void) fclose(*pfd);
|
|
}
|
|
}
|
|
#define nm_auto_fclose nm_auto(_nm_auto_fclose)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define nm_clear_pointer(pp, destroy) \
|
|
({ \
|
|
typeof(*(pp)) *_pp = (pp); \
|
|
typeof(*_pp) _p; \
|
|
int _changed = false; \
|
|
\
|
|
if (_pp && (_p = *_pp)) { \
|
|
_NM_ENSURE_POINTER(_p); \
|
|
\
|
|
*_pp = NULL; \
|
|
\
|
|
/* g_clear_pointer() assigns @destroy first to a local variable, so that
|
|
* you can call "g_clear_pointer (pp, (GDestroyNotify) destroy);" without
|
|
* gcc emitting a warning. We don't do that, hence, you cannot cast
|
|
* "destroy" first.
|
|
*
|
|
* On the upside: you are not supposed to cast fcn, because the pointer
|
|
* types are preserved. If you really need a cast, you should cast @pp.
|
|
* But that is hardly ever necessary. */ \
|
|
(destroy)(_p); \
|
|
\
|
|
_changed = true; \
|
|
} \
|
|
_changed; \
|
|
})
|
|
|
|
#define nm_clear_free(pp) nm_clear_pointer(pp, free)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define nm_steal_pointer(pp) \
|
|
({ \
|
|
typeof(*(pp)) *const _pp = (pp); \
|
|
typeof(*_pp) _p = *_pp; \
|
|
\
|
|
_NM_ENSURE_POINTER(_p); \
|
|
\
|
|
*_pp = NULL; \
|
|
_p; \
|
|
})
|
|
|
|
/**
|
|
* nm_steal_int:
|
|
* @p_val: pointer to an int type.
|
|
*
|
|
* Returns: *p_val and sets *p_val to zero the same time.
|
|
* Accepts %NULL, in which case also numeric 0 will be returned.
|
|
*/
|
|
#define nm_steal_int(p_val) \
|
|
({ \
|
|
typeof(p_val) const _p_val = (p_val); \
|
|
typeof(*_p_val) _val = 0; \
|
|
\
|
|
if (_p_val && ((_val = *_p_val) != 0)) { \
|
|
*_p_val = 0; \
|
|
} \
|
|
_val; \
|
|
})
|
|
|
|
static inline int
|
|
nm_steal_fd(int *p_fd)
|
|
{
|
|
int fd;
|
|
|
|
if (p_fd && ((fd = *p_fd) >= 0)) {
|
|
*p_fd = -1;
|
|
return fd;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
|
|
static inline uintptr_t
|
|
nm_ptr_to_uintptr(const void *p)
|
|
{
|
|
/* in C, pointers can only be compared (with less-than or greater-than) under certain
|
|
* circumstances. Since uintptr_t is supposed to be able to represent the pointer
|
|
* as a plain integer and also support to convert the integer back to the pointer,
|
|
* it should be safer to compare the pointers directly.
|
|
*
|
|
* Of course, this function isn't very useful beyond that its use makes it clear
|
|
* that we want to compare pointers by value, which otherwise may not be valid. */
|
|
return (uintptr_t) p;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_CMP_RETURN(c) \
|
|
do { \
|
|
const int _cc = (c); \
|
|
if (_cc) \
|
|
return _cc < 0 ? -1 : 1; \
|
|
} while (0)
|
|
|
|
#define NM_CMP_RETURN_DIRECT(c) \
|
|
do { \
|
|
const int _cc = (c); \
|
|
if (_cc) \
|
|
return _cc; \
|
|
} while (0)
|
|
|
|
#define NM_CMP_SELF(a, b) \
|
|
do { \
|
|
typeof(a) _a = (a); \
|
|
typeof(b) _b = (b); \
|
|
\
|
|
if (_a == _b) \
|
|
return 0; \
|
|
if (!_a) \
|
|
return -1; \
|
|
if (!_b) \
|
|
return 1; \
|
|
} while (0)
|
|
|
|
#define NM_CMP_DIRECT(a, b) \
|
|
do { \
|
|
typeof(a) _a = (a); \
|
|
typeof(b) _b = (b); \
|
|
\
|
|
if (_a != _b) \
|
|
return (_a < _b) ? -1 : 1; \
|
|
} while (0)
|
|
|
|
#define NM_CMP_DIRECT_UNSAFE(a, b) \
|
|
do { \
|
|
if ((a) != (b)) \
|
|
return ((a) < (b)) ? -1 : 1; \
|
|
} while (0)
|
|
|
|
/* In the general case, direct pointer comparison is undefined behavior in C.
|
|
* Avoid that by casting pointers to void* and then to uintptr_t. This comparison
|
|
* is not really meaningful, except that it provides some kind of stable sort order
|
|
* between pointers (that can otherwise not be compared). */
|
|
#define NM_CMP_DIRECT_PTR(a, b) NM_CMP_DIRECT(nm_ptr_to_uintptr(a), nm_ptr_to_uintptr(b))
|
|
|
|
#define NM_CMP_DIRECT_MEMCMP(a, b, size) NM_CMP_RETURN(memcmp((a), (b), (size)))
|
|
|
|
#define NM_CMP_DIRECT_STRCMP(a, b) NM_CMP_RETURN_DIRECT(strcmp((a), (b)))
|
|
|
|
#define NM_CMP_DIRECT_STRCMP0(a, b) NM_CMP_RETURN_DIRECT(nm_strcmp0((a), (b)))
|
|
|
|
#define NM_CMP_DIRECT_IN6ADDR(a, b) \
|
|
do { \
|
|
const struct in6_addr *const _a = (a); \
|
|
const struct in6_addr *const _b = (b); \
|
|
NM_CMP_RETURN(memcmp(_a, _b, sizeof(struct in6_addr))); \
|
|
} while (0)
|
|
|
|
#define NM_CMP_FIELD(a, b, field) NM_CMP_DIRECT(((a)->field), ((b)->field))
|
|
|
|
#define NM_CMP_FIELD_UNSAFE(a, b, field) \
|
|
do { \
|
|
/* it's unsafe, because it evaluates the arguments more then once.
|
|
* This is necessary for bitfields, for which typeof() doesn't work. */ \
|
|
if (((a)->field) != ((b)->field)) \
|
|
return ((a)->field < ((b)->field)) ? -1 : 1; \
|
|
} while (0)
|
|
|
|
#define NM_CMP_FIELD_BOOL(a, b, field) NM_CMP_DIRECT(!!((a)->field), !!((b)->field))
|
|
|
|
#define NM_CMP_FIELD_STR(a, b, field) NM_CMP_RETURN(strcmp(((a)->field), ((b)->field)))
|
|
|
|
#define NM_CMP_FIELD_STR_INTERNED(a, b, field) \
|
|
do { \
|
|
const char *_a = ((a)->field); \
|
|
const char *_b = ((b)->field); \
|
|
\
|
|
if (_a != _b) { \
|
|
NM_CMP_RETURN_DIRECT(nm_strcmp0(_a, _b)); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define NM_CMP_FIELD_STR0(a, b, field) NM_CMP_RETURN_DIRECT(nm_strcmp0(((a)->field), ((b)->field)))
|
|
|
|
#define NM_CMP_FIELD_MEMCMP_LEN(a, b, field, len) \
|
|
NM_CMP_RETURN(memcmp(&((a)->field), &((b)->field), NM_MIN(len, sizeof((a)->field))))
|
|
|
|
#define NM_CMP_FIELD_MEMCMP(a, b, field) \
|
|
NM_CMP_RETURN(memcmp(&((a)->field), &((b)->field), sizeof((a)->field)))
|
|
|
|
#define NM_CMP_FIELD_IN6ADDR(a, b, field) \
|
|
do { \
|
|
const struct in6_addr *const _a = &((a)->field); \
|
|
const struct in6_addr *const _b = &((b)->field); \
|
|
NM_CMP_RETURN(memcmp(_a, _b, sizeof(struct in6_addr))); \
|
|
} while (0)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#define NM_AF_UNSPEC 0 /* AF_UNSPEC */
|
|
#define NM_AF_INET 2 /* AF_INET */
|
|
#define NM_AF_INET6 10 /* AF_INET6 */
|
|
|
|
#define NM_AF_INET_SIZE 4 /* sizeof (in_addr_t) */
|
|
#define NM_AF_INET6_SIZE 16 /* sizeof (stuct in6_addr) */
|
|
|
|
static inline const char *
|
|
nm_utils_addr_family_to_str(int addr_family)
|
|
{
|
|
switch (addr_family) {
|
|
case NM_AF_UNSPEC:
|
|
return "";
|
|
case NM_AF_INET:
|
|
return "4";
|
|
case NM_AF_INET6:
|
|
return "6";
|
|
}
|
|
nm_assert_not_reached();
|
|
return "?";
|
|
}
|
|
|
|
static inline char
|
|
nm_utils_addr_family_to_char(int addr_family)
|
|
{
|
|
switch (addr_family) {
|
|
case NM_AF_UNSPEC:
|
|
return 'X';
|
|
case NM_AF_INET:
|
|
return '4';
|
|
case NM_AF_INET6:
|
|
return '6';
|
|
}
|
|
nm_assert_not_reached();
|
|
return '?';
|
|
}
|
|
|
|
#define nm_assert_addr_family(addr_family) \
|
|
nm_assert(NM_IN_SET((addr_family), NM_AF_INET, NM_AF_INET6))
|
|
|
|
#define nm_assert_addr_family_or_unspec(addr_family) \
|
|
nm_assert(NM_IN_SET((addr_family), NM_AF_UNSPEC, NM_AF_INET, NM_AF_INET6))
|
|
|
|
#define _NM_IS_IPv4(uniq, addr_family) \
|
|
({ \
|
|
const int NM_UNIQ_T(_addr_family, uniq) = (addr_family); \
|
|
\
|
|
nm_assert_addr_family(NM_UNIQ_T(_addr_family, uniq)); \
|
|
\
|
|
(NM_UNIQ_T(_addr_family, uniq) == NM_AF_INET); \
|
|
})
|
|
|
|
#define NM_IS_IPv4(addr_family) _NM_IS_IPv4(NM_UNIQ, addr_family)
|
|
|
|
static inline int
|
|
nm_utils_addr_family_other(int addr_family)
|
|
{
|
|
return NM_IS_IPv4(addr_family) ? NM_AF_INET6 : NM_AF_INET;
|
|
}
|
|
|
|
static inline size_t
|
|
nm_utils_addr_family_to_size(int addr_family)
|
|
{
|
|
switch (addr_family) {
|
|
case NM_AF_INET:
|
|
return NM_AF_INET_SIZE;
|
|
case NM_AF_INET6:
|
|
return NM_AF_INET6_SIZE;
|
|
}
|
|
return nm_assert_unreachable_val(0);
|
|
}
|
|
|
|
static inline int
|
|
nm_utils_addr_family_from_size(size_t len)
|
|
{
|
|
switch (len) {
|
|
case NM_AF_INET_SIZE:
|
|
return NM_AF_INET;
|
|
case NM_AF_INET6_SIZE:
|
|
return NM_AF_INET6;
|
|
}
|
|
return NM_AF_UNSPEC;
|
|
}
|
|
|
|
#endif /* __NM_STD_AUX_H__ */
|