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authorRickard Green <[email protected]>2013-02-18 00:28:12 +0100
committerRickard Green <[email protected]>2013-02-18 00:28:12 +0100
commit4f6a7255afbd5b296139e073d66564976d80cc06 (patch)
tree0b7039aa2dacb00c8424abf401a01db10552e7eb /erts/emulator
parent1cbd897c43f0dab1275392a3736e4629c1f80243 (diff)
downloadotp-4f6a7255afbd5b296139e073d66564976d80cc06.tar.gz
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Add atomic dirty read and dirty set operations
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/erl_smp.h18
-rw-r--r--erts/emulator/beam/erl_threads.h78
2 files changed, 96 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_smp.h b/erts/emulator/beam/erl_smp.h
index a32e9d9d7c..d9ab6bb5e5 100644
--- a/erts/emulator/beam/erl_smp.h
+++ b/erts/emulator/beam/erl_smp.h
@@ -259,6 +259,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_dw_atomic_read_wb erts_dw_atomic_read_wb
#define erts_smp_dw_atomic_cmpxchg_wb erts_dw_atomic_cmpxchg_wb
+#define erts_smp_dw_atomic_set_dirty erts_dw_atomic_set_dirty
+#define erts_smp_dw_atomic_read_dirty erts_dw_atomic_read_dirty
+
/* Word size atomics */
#define erts_smp_atomic_init_nob erts_atomic_init_nob
@@ -359,6 +362,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_xchg_wb erts_atomic_xchg_wb
#define erts_smp_atomic_cmpxchg_wb erts_atomic_cmpxchg_wb
+#define erts_smp_atomic_set_dirty erts_atomic_set_dirty
+#define erts_smp_atomic_read_dirty erts_atomic_read_dirty
+
/* 32-bit atomics */
#define erts_smp_atomic32_init_nob erts_atomic32_init_nob
@@ -459,6 +465,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_xchg_wb erts_atomic32_xchg_wb
#define erts_smp_atomic32_cmpxchg_wb erts_atomic32_cmpxchg_wb
+#define erts_smp_atomic32_set_dirty erts_atomic32_set_dirty
+#define erts_smp_atomic32_read_dirty erts_atomic32_read_dirty
+
#else /* !ERTS_SMP */
/* Double word size atomics */
@@ -498,6 +507,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_dw_atomic_read_wb erts_no_dw_atomic_read
#define erts_smp_dw_atomic_cmpxchg_wb erts_no_dw_atomic_cmpxchg
+#define erts_smp_dw_atomic_set_dirty erts_no_dw_atomic_set
+#define erts_smp_dw_atomic_read_dirty erts_no_dw_atomic_read
+
/* Word size atomics */
#define erts_smp_atomic_init_nob erts_no_atomic_set
@@ -598,6 +610,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_xchg_wb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_wb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_set_dirty erts_no_atomic_set
+#define erts_smp_atomic_read_dirty erts_no_atomic_read
+
/* 32-bit atomics */
#define erts_smp_atomic32_init_nob erts_no_atomic32_set
@@ -698,6 +713,9 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_xchg_wb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_set_dirty erts_no_atomic32_set
+#define erts_smp_atomic32_read_dirty erts_no_atomic32_read
+
#endif /* !ERTS_SMP */
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index ee47c98009..5e853bd8f6 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -601,6 +601,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#ifdef USE_THREADS
+ERTS_GLB_INLINE void
+erts_dw_atomic_set_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val);
+ERTS_GLB_INLINE void
+erts_dw_atomic_read_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val);
+ERTS_GLB_INLINE void
+erts_atomic_set_dirty(erts_atomic_t *var, erts_aint_t val);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_dirty(erts_atomic_t *var);
+ERTS_GLB_INLINE void
+erts_atomic32_set_dirty(erts_atomic32_t *var, erts_aint32_t val);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_dirty(erts_atomic32_t *var);
+
/*
* See "Documentation of atomics and memory barriers" at the top
* of this file for info on atomics.
@@ -643,6 +656,26 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_dw_atomic_read_wb ethr_dw_atomic_read_wb
#define erts_dw_atomic_cmpxchg_wb ethr_dw_atomic_cmpxchg_wb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_dw_atomic_set_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val)
+{
+ ethr_sint_t *sint = ethr_dw_atomic_addr(var);
+ sint[0] = val->sint[0];
+ sint[1] = val->sint[1];
+}
+
+ERTS_GLB_INLINE void
+erts_dw_atomic_read_dirty(erts_dw_atomic_t *var, erts_dw_aint_t *val)
+{
+ ethr_sint_t *sint = ethr_dw_atomic_addr(var);
+ val->sint[0] = sint[0];
+ val->sint[1] = sint[1];
+}
+
+#endif
+
/* Word size atomics */
#define erts_atomic_init_nob ethr_atomic_init
@@ -743,6 +776,24 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_wb ethr_atomic_xchg_wb
#define erts_atomic_cmpxchg_wb ethr_atomic_cmpxchg_wb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_atomic_set_dirty(erts_atomic_t *var, erts_aint_t val)
+{
+ ethr_sint_t *sint = ethr_atomic_addr(var);
+ *sint = val;
+}
+
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_dirty(erts_atomic_t *var)
+{
+ ethr_sint_t *sint = ethr_atomic_addr(var);
+ return *sint;
+}
+
+#endif
+
/* 32-bit atomics */
#define erts_atomic32_init_nob ethr_atomic32_init
@@ -843,6 +894,24 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_wb ethr_atomic32_xchg_wb
#define erts_atomic32_cmpxchg_wb ethr_atomic32_cmpxchg_wb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_atomic32_set_dirty(erts_atomic32_t *var, erts_aint32_t val)
+{
+ ethr_sint32_t *sint = ethr_atomic32_addr(var);
+ *sint = val;
+}
+
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_dirty(erts_atomic32_t *var)
+{
+ ethr_sint32_t *sint = ethr_atomic32_addr(var);
+ return *sint;
+}
+
+#endif
+
#else /* !USE_THREADS */
/* Double word size atomics */
@@ -882,6 +951,9 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_dw_atomic_read_wb erts_no_dw_atomic_read
#define erts_dw_atomic_cmpxchg_wb erts_no_dw_atomic_cmpxchg
+#define erts_dw_atomic_set_dirty erts_no_dw_atomic_set
+#define erts_dw_atomic_read_dirty erts_no_dw_atomic_read
+
/* Word size atomics */
#define erts_atomic_init_nob erts_no_atomic_set
@@ -982,6 +1054,9 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_wb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_wb erts_no_atomic_cmpxchg
+#define erts_atomic_set_dirty erts_no_atomic_set
+#define erts_atomic_read_dirty erts_no_atomic_read
+
/* 32-bit atomics */
#define erts_atomic32_init_nob erts_no_atomic32_set
@@ -1082,6 +1157,9 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_wb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg
+#define erts_atomic32_set_dirty erts_no_atomic32_set
+#define erts_atomic32_read_dirty erts_no_atomic32_read
+
#endif /* !USE_THREADS */
#if ERTS_GLB_INLINE_INCL_FUNC_DEF