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authorRickard Green <rickard@erlang.org>2013-09-11 21:49:32 +0200
committerRickard Green <rickard@erlang.org>2013-09-25 16:24:31 +0200
commitcabfe2cdc0b8d879431f81233addd2a43ff1f742 (patch)
tree8971e09324be75eefaa259acdf7cfcc91d9bf280 /erts/emulator/beam/erl_alloc.h
parentf083e4298d751bb564915b03f0c32114d533d086 (diff)
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Implement platform specific aligned sys_alloc and use when supported
erts_sys_aligned_alloc() is currently implemented using posix_memalign if it exist, or using _aligned_malloc on Windows. If erts_sys_aligned_alloc() exist allocators will create sys_alloc carriers similar to how this was done pre-R16.
Diffstat (limited to 'erts/emulator/beam/erl_alloc.h')
-rw-r--r--erts/emulator/beam/erl_alloc.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h
index ba5ec9c367..7168241f76 100644
--- a/erts/emulator/beam/erl_alloc.h
+++ b/erts/emulator/beam/erl_alloc.h
@@ -54,6 +54,16 @@ void erts_sys_alloc_init(void);
void *erts_sys_alloc(ErtsAlcType_t, void *, Uint);
void *erts_sys_realloc(ErtsAlcType_t, void *, void *, Uint);
void erts_sys_free(ErtsAlcType_t, void *, void *);
+#if ERTS_HAVE_ERTS_SYS_ALIGNED_ALLOC
+/*
+ * Note 'alignment' must remain the same in calls to
+ * 'erts_sys_aligned_realloc()' and 'erts_sys_aligned_free()'
+ * as in the initial call to 'erts_sys_aligned_alloc()'.
+ */
+void *erts_sys_aligned_alloc(UWord alignment, UWord size);
+void *erts_sys_aligned_realloc(UWord alignment, void *ptr, UWord size, UWord old_size);
+void erts_sys_aligned_free(UWord alignment, void *ptr);
+#endif
Eterm erts_memory(int *, void *, void *, Eterm);
Eterm erts_allocated_areas(int *, void *, void *);