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gbitlock: factor out bit_lock_contended_class() to avoid duplicated code

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This commit is contained in:
Thomas Haller 2024-01-11 09:15:27 +01:00
parent 5e1875dbdc
commit a9ed0e2491
1 changed files with 13 additions and 6 deletions
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19
glib/gbitlock.c
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@ -174,6 +174,12 @@ g_futex_wake (const gint *address)
#define CONTENTION_CLASSES 11
static gint g_bit_lock_contended[CONTENTION_CLASSES]; /* (atomic) */
G_ALWAYS_INLINE static inline guint
bit_lock_contended_class (gpointer address)
{
return ((gsize) address) % G_N_ELEMENTS (g_bit_lock_contended);
}
#if (defined (i386) || defined (__amd64__))
#if G_GNUC_CHECK_VERSION(4, 5)
#define USE_ASM_GOTO 1
@ -226,7 +232,7 @@ g_bit_lock (volatile gint *address,
v = (guint) g_atomic_int_get (address_nonvolatile);
if (v & mask)
{
guint class = ((gsize) address_nonvolatile) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address_nonvolatile);
g_atomic_int_add (&g_bit_lock_contended[class], +1);
g_futex_wait (address_nonvolatile, v);
@ -243,7 +249,7 @@ g_bit_lock (volatile gint *address,
if (v & mask)
/* already locked */
{
guint class = ((gsize) address_nonvolatile) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address_nonvolatile);
g_atomic_int_add (&g_bit_lock_contended[class], +1);
g_futex_wait (address_nonvolatile, v);
@ -337,7 +343,7 @@ g_bit_unlock (volatile gint *address,
#endif
{
guint class = ((gsize) address_nonvolatile) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address_nonvolatile);
if (g_atomic_int_get (&g_bit_lock_contended[class]))
g_futex_wake (address_nonvolatile);
@ -434,7 +440,7 @@ void
guint lock_bit,
guintptr *out_ptr)
{
guint class = ((gsize) address) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address);
guintptr mask;
guintptr v;
@ -594,7 +600,8 @@ void
#endif
{
guint class = ((gsize) address_nonvolatile) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address_nonvolatile);
if (g_atomic_int_get (&g_bit_lock_contended[class]))
g_futex_wake (g_futex_int_address (address_nonvolatile));
}
@ -657,7 +664,7 @@ void (g_pointer_bit_unlock_and_set) (void *address,
guintptr preserve_mask)
{
gpointer *pointer_address = address;
guint class = ((guintptr) address) % G_N_ELEMENTS (g_bit_lock_contended);
guint class = bit_lock_contended_class (address);
gpointer ptr2;
g_return_if_fail (lock_bit < 32u);