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TSD: Pull name mangling into a macro.

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David Goldblatt 2018-05-11 15:18:52 -07:00 committed by David Goldblatt
parent 39d6420c0c
commit feff510b9f
1 changed files with 9 additions and 2 deletions
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11
include/jemalloc/internal/tsd.h
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@ -107,6 +107,13 @@ enum {
tsd_state_uninitialized = 5 tsd_state_uninitialized = 5
}; };
/*
* Some TSD accesses can only be done in a nominal state. To enforce this, we
* wrap TSD member access in a function that asserts on TSD state, and mangle
* field names to prevent touching them accidentally.
*/
#define TSD_MANGLE(n) cant_access_tsd_items_directly_use_a_getter_or_setter_##n
/* The actual tsd. */ /* The actual tsd. */
struct tsd_s { struct tsd_s {
/* /*
@ -118,7 +125,7 @@ struct tsd_s {
/* We manually limit the state to just a single byte. */ /* We manually limit the state to just a single byte. */
atomic_u8_t state; atomic_u8_t state;
#define O(n, t, nt) \ #define O(n, t, nt) \
t use_a_getter_or_setter_instead_##n; t TSD_MANGLE(n);
MALLOC_TSD MALLOC_TSD
#undef O #undef O
}; };
@ -197,7 +204,7 @@ void tsd_slow_update(tsd_t *tsd);
#define O(n, t, nt) \ #define O(n, t, nt) \
JEMALLOC_ALWAYS_INLINE t * \ JEMALLOC_ALWAYS_INLINE t * \
tsd_##n##p_get_unsafe(tsd_t *tsd) { \ tsd_##n##p_get_unsafe(tsd_t *tsd) { \
return &tsd->use_a_getter_or_setter_instead_##n; \ return &tsd->TSD_MANGLE(n); \
} }
MALLOC_TSD MALLOC_TSD
#undef O #undef O