Re: [libvirt] [PATCH 03/13] Rewrite virAtomic APIs using GLib's atomic ops code

+ +# define virAtomicIntGet(atomic) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ *(atomic) : 0); \ + __sync_synchronize (); \ + (int) *(atomic); \ + })) +# define virAtomicIntSet(atomic, newval) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ (newval) : 0); \ + *(atomic) = (newval); \ + __sync_synchronize (); \ + })) +# define virAtomicIntInc(atomic) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ *(atomic) : 0); \ + (void) __sync_fetch_and_add ((atomic), 1); \ + })) +# define virAtomicIntDecAndTest(atomic) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ *(atomic) : 0); \ + __sync_fetch_and_sub ((atomic), 1) == 1; \ + })) +# define virAtomicIntCompareExchange(atomic, oldval, newval) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ (newval) ^ (oldval) : 0); \ + (bool) __sync_bool_compare_and_swap ((atomic), (oldval), (newval)); \ + })) +# define virAtomicIntAdd(atomic, val) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ (val) : 0); \ + (int) __sync_fetch_and_add ((atomic), (val)); \ + })) +# define virAtomicIntAnd(atomic, val) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ (val) : 0); \ + (unsigned int) __sync_fetch_and_and ((atomic), (val)); \ + })) +# define virAtomicIntOr(atomic, val) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \ + (void) (0 ? *(atomic) ^ (val) : 0); \ + (unsigned int) __sync_fetch_and_or ((atomic), (val)); \ + })) +# define virAtomicIntXor(atomic, val) \ + (__extension__ ({ \ + verify (sizeof(*(atomic)) == sizeof(int)); \

+ (void) (0 ? *(atomic) ^ (val) : 0); \ + (unsigned int) __sync_fetch_and_xor ((atomic), (val)); \ + })) +