External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2025-01-03 11:35:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

util: atomic: use #pragma once

Browse Source 
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jonathon Jongsma 2019-06-18 11:12:46 -05:00 committed by Ján Tomko
parent a6d438a9a3
commit 54416b6a59
1 changed files with 44 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

91
src/util/viratomic.h
View File

@ -23,16 +23,15 @@
* *
*/ */
#ifndef LIBVIRT_VIRATOMIC_H #pragma once
# define LIBVIRT_VIRATOMIC_H
# include "internal.h" #include "internal.h"
# ifdef VIR_ATOMIC_OPS_GCC #ifdef VIR_ATOMIC_OPS_GCC
# define VIR_STATIC /* Nothing; we just never define the functions */ # define VIR_STATIC /* Nothing; we just never define the functions */
# else #else
# define VIR_STATIC static # define VIR_STATIC static
# endif #endif
/** /**
* virAtomicIntGet: * virAtomicIntGet:
@ -152,62 +151,62 @@ VIR_STATIC unsigned int virAtomicIntXor(volatile unsigned int *atomic,
unsigned int val) unsigned int val)
ATTRIBUTE_NONNULL(1); ATTRIBUTE_NONNULL(1);
# undef VIR_STATIC #undef VIR_STATIC
# ifdef VIR_ATOMIC_OPS_GCC #ifdef VIR_ATOMIC_OPS_GCC
# define virAtomicIntGet(atomic) \ # define virAtomicIntGet(atomic) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ *(atomic) : 0); \ (void)(0 ? *(atomic) ^ *(atomic) : 0); \
__sync_synchronize(); \ __sync_synchronize(); \
(int)*(atomic); \ (int)*(atomic); \
})) }))
# define virAtomicIntSet(atomic, newval) \ # define virAtomicIntSet(atomic, newval) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ (newval) : 0); \ (void)(0 ? *(atomic) ^ (newval) : 0); \
*(atomic) = (newval); \ *(atomic) = (newval); \
__sync_synchronize(); \ __sync_synchronize(); \
})) }))
# define virAtomicIntInc(atomic) \ # define virAtomicIntInc(atomic) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ *(atomic) : 0); \ (void)(0 ? *(atomic) ^ *(atomic) : 0); \
__sync_add_and_fetch((atomic), 1); \ __sync_add_and_fetch((atomic), 1); \
})) }))
# define virAtomicIntDecAndTest(atomic) \ # define virAtomicIntDecAndTest(atomic) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ *(atomic) : 0); \ (void)(0 ? *(atomic) ^ *(atomic) : 0); \
__sync_fetch_and_sub((atomic), 1) == 1; \ __sync_fetch_and_sub((atomic), 1) == 1; \
})) }))
# define virAtomicIntCompareExchange(atomic, oldval, newval) \ # define virAtomicIntCompareExchange(atomic, oldval, newval) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ (newval) ^ (oldval) : 0); \ (void)(0 ? *(atomic) ^ (newval) ^ (oldval) : 0); \
(bool)__sync_bool_compare_and_swap((atomic), \ (bool)__sync_bool_compare_and_swap((atomic), \
(oldval), (newval)); \ (oldval), (newval)); \
})) }))
# define virAtomicIntAdd(atomic, val) \ # define virAtomicIntAdd(atomic, val) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void)(0 ? *(atomic) ^ (val) : 0); \ (void)(0 ? *(atomic) ^ (val) : 0); \
(int) __sync_fetch_and_add((atomic), (val)); \ (int) __sync_fetch_and_add((atomic), (val)); \
})) }))
# define virAtomicIntAnd(atomic, val) \ # define virAtomicIntAnd(atomic, val) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void) (0 ? *(atomic) ^ (val) : 0); \ (void) (0 ? *(atomic) ^ (val) : 0); \
(unsigned int) __sync_fetch_and_and((atomic), (val)); \ (unsigned int) __sync_fetch_and_and((atomic), (val)); \
})) }))
# define virAtomicIntOr(atomic, val) \ # define virAtomicIntOr(atomic, val) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void) (0 ? *(atomic) ^ (val) : 0); \ (void) (0 ? *(atomic) ^ (val) : 0); \
(unsigned int) __sync_fetch_and_or((atomic), (val)); \ (unsigned int) __sync_fetch_and_or((atomic), (val)); \
})) }))
# define virAtomicIntXor(atomic, val) \ # define virAtomicIntXor(atomic, val) \
(__extension__ ({ \ (__extension__ ({ \
(void)verify_true(sizeof(*(atomic)) == sizeof(int)); \ (void)verify_true(sizeof(*(atomic)) == sizeof(int)); \
(void) (0 ? *(atomic) ^ (val) : 0); \ (void) (0 ? *(atomic) ^ (val) : 0); \
@ -215,18 +214,18 @@ VIR_STATIC unsigned int virAtomicIntXor(volatile unsigned int *atomic,
})) }))
# else #else
# ifdef VIR_ATOMIC_OPS_WIN32 # ifdef VIR_ATOMIC_OPS_WIN32
# include <winsock2.h> # include <winsock2.h>
# include <windows.h> # include <windows.h>
# include <intrin.h> # include <intrin.h>
# if !defined(_M_AMD64) && !defined (_M_IA64) && !defined(_M_X64) # if !defined(_M_AMD64) && !defined (_M_IA64) && !defined(_M_X64)
# define InterlockedAnd _InterlockedAnd # define InterlockedAnd _InterlockedAnd
# define InterlockedOr _InterlockedOr # define InterlockedOr _InterlockedOr
# define InterlockedXor _InterlockedXor # define InterlockedXor _InterlockedXor
# endif # endif
/* /*
* http://msdn.microsoft.com/en-us/library/ms684122(v=vs.85).aspx * http://msdn.microsoft.com/en-us/library/ms684122(v=vs.85).aspx
@ -295,9 +294,9 @@ virAtomicIntXor(volatile unsigned int *atomic,
} }
# else # else
# ifdef VIR_ATOMIC_OPS_PTHREAD # ifdef VIR_ATOMIC_OPS_PTHREAD
# include <pthread.h> # include <pthread.h>
extern pthread_mutex_t virAtomicLock; extern pthread_mutex_t virAtomicLock;
@ -420,35 +419,33 @@ virAtomicIntXor(volatile unsigned int *atomic,
} }
# else # else
# error "No atomic integer impl for this platform" # error "No atomic integer impl for this platform"
# endif
# endif # endif
# endif
/* The int/unsigned int casts here ensure that you can /* The int/unsigned int casts here ensure that you can
* pass either an int or unsigned int to all atomic op * pass either an int or unsigned int to all atomic op
* functions, in the same way that we can with GCC * functions, in the same way that we can with GCC
* atomic op helpers. * atomic op helpers.
*/ */
# define virAtomicIntGet(atomic) \ # define virAtomicIntGet(atomic) \
virAtomicIntGet((int *)atomic) virAtomicIntGet((int *)atomic)
# define virAtomicIntSet(atomic, val) \ # define virAtomicIntSet(atomic, val) \
virAtomicIntSet((int *)atomic, val) virAtomicIntSet((int *)atomic, val)
# define virAtomicIntInc(atomic) \ # define virAtomicIntInc(atomic) \
virAtomicIntInc((int *)atomic) virAtomicIntInc((int *)atomic)
# define virAtomicIntDecAndTest(atomic) \ # define virAtomicIntDecAndTest(atomic) \
virAtomicIntDecAndTest((int *)atomic) virAtomicIntDecAndTest((int *)atomic)
# define virAtomicIntCompareExchange(atomic, oldval, newval) \ # define virAtomicIntCompareExchange(atomic, oldval, newval) \
virAtomicIntCompareExchange((int *)atomic, oldval, newval) virAtomicIntCompareExchange((int *)atomic, oldval, newval)
# define virAtomicIntAdd(atomic, val) \ # define virAtomicIntAdd(atomic, val) \
virAtomicIntAdd((int *)atomic, val) virAtomicIntAdd((int *)atomic, val)
# define virAtomicIntAnd(atomic, val) \ # define virAtomicIntAnd(atomic, val) \
virAtomicIntAnd((unsigned int *)atomic, val) virAtomicIntAnd((unsigned int *)atomic, val)
# define virAtomicIntOr(atomic, val) \ # define virAtomicIntOr(atomic, val) \
virAtomicIntOr((unsigned int *)atomic, val) virAtomicIntOr((unsigned int *)atomic, val)
# define virAtomicIntXor(atomic, val) \ # define virAtomicIntXor(atomic, val) \
virAtomicIntXor((unsigned int *)atomic, val) virAtomicIntXor((unsigned int *)atomic, val)
# endif #endif
#endif /* LIBVIRT_VIRATOMIC_H */