diff options
| author | Ralf Habacker <ralf.habacker@freenet.de> | 2007-01-01 21:29:59 +0000 |
|---|---|---|
| committer | Ralf Habacker <ralf.habacker@freenet.de> | 2007-01-01 21:29:59 +0000 |
| commit | d45c4a1f40c80d203b6ca8efc338a61d9232846e (patch) | |
| tree | b28750f47ad06ad097cec22cd86f3c15872fc836 /dbus/dbus-sysdeps-unix.c | |
| parent | 3a33c8e294bf1b4338fc81bcd9b0889de3c0e0f0 (diff) | |
* dbus/dbus-sysdeps-unix.c: unix compile fix, moved
atomic_exchange_and_add() from dbus/dbus-sysdeps.c
to here, it's used by _dbus_atomic_inc() and _dbus_atomic_dec().
Diffstat (limited to 'dbus/dbus-sysdeps-unix.c')
| -rw-r--r-- | dbus/dbus-sysdeps-unix.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c index 9b6457b2..26fa5f94 100644 --- a/dbus/dbus-sysdeps-unix.c +++ b/dbus/dbus-sysdeps-unix.c @@ -1428,6 +1428,24 @@ _dbus_getuid (void) return getuid (); } +_DBUS_DEFINE_GLOBAL_LOCK (atomic); + +#ifdef DBUS_USE_ATOMIC_INT_486 +/* Taken from CVS version 1.7 of glibc's sysdeps/i386/i486/atomicity.h */ +/* Since the asm stuff here is gcc-specific we go ahead and use "inline" also */ +static inline dbus_int32_t +atomic_exchange_and_add (DBusAtomic *atomic, + volatile dbus_int32_t val) +{ + register dbus_int32_t result; + + __asm__ __volatile__ ("lock; xaddl %0,%1" + : "=r" (result), "=m" (atomic->value) + : "0" (val), "m" (atomic->value)); + return result; +} +#endif + /** * Atomically increments an integer * |