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Check isc_mutex_{lock,unlock}() return values in mutexatomic.h shim

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This commit is contained in:
Ondřej Surý
2019-07-15 12:57:43 +02:00
parent 7300866778
commit aea3631fd5
1 changed files with 68 additions and 21 deletions
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89
lib/isc/include/isc/mutexatomic.h
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@@ -100,23 +100,66 @@ typedef struct atomic_bool_s {
} atomic_bool;
#define atomic_init(obj, desired) \
{ isc_mutex_init(&(obj)->m); isc_mutex_lock(&(obj)->m); (obj)->v = desired; isc_mutex_unlock(&(obj)->m); }
#define atomic_load_explicit(obj, order) \
({ typeof((obj)->v) __v; isc_mutex_lock(&(obj)->m); __v= (obj)->v; isc_mutex_unlock(&(obj)->m); __v;} )
#define atomic_store_explicit(obj, desired, order) \
{isc_mutex_lock(&(obj)->m); (obj)->v = desired; isc_mutex_unlock(&(obj)->m); }
#define atomic_fetch_add_explicit(obj, arg, order) \
({ typeof((obj)->v) __v; isc_mutex_lock(&(obj)->m); __v= (obj)->v; (obj)->v += arg; isc_mutex_unlock(&(obj)->m); __v;} )
#define atomic_fetch_sub_explicit(obj, arg, order) \
({ typeof((obj)->v) __v; isc_mutex_lock(&(obj)->m); __v= (obj)->v; (obj)->v -= arg; isc_mutex_unlock(&(obj)->m); __v;} )
#define atomic_compare_exchange_strong_explicit(obj, expected, desired, succ, fail) \
({ bool __v; isc_mutex_lock(&(obj)->m); __v = ((obj)->v == *expected); *expected = (obj)->v; (obj)->v = __v ? desired : (obj)->v; isc_mutex_unlock(&(obj)->m); __v;} )
#define atomic_compare_exchange_weak_explicit(obj, expected, desired, succ, fail) \
({ bool __v; isc_mutex_lock(&(obj)->m); __v = ((obj)->v == *expected); *expected = (obj)->v; (obj)->v = __v ? desired : (obj)->v; isc_mutex_unlock(&(obj)->m); __v;} )
#define atomic_init(obj, desired) \
{ \
isc_mutex_init(&(obj)->m); \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
(obj)->v = desired; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
}
#define atomic_load_explicit(obj, order) \
({ \
typeof((obj)->v) ___v; \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
___v= (obj)->v; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
___v; \
})
#define atomic_store_explicit(obj, desired, order) \
{ \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
(obj)->v = desired; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
}
#define atomic_fetch_add_explicit(obj, arg, order) \
({ \
typeof((obj)->v) ___v; \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
___v= (obj)->v; \
(obj)->v += arg; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
___v;\
})
#define atomic_fetch_sub_explicit(obj, arg, order) \
({ typeof((obj)->v) ___v; \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
___v= (obj)->v; \
(obj)->v -= arg; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
___v;\
})
#define atomic_compare_exchange_strong_explicit(obj, expected, desired, \
succ, fail) \
({ \
bool ___v; \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
___v = ((obj)->v == *expected); \
*expected = (obj)->v; \
(obj)->v = ___v ? desired : (obj)->v; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
___v; \
})
#define atomic_compare_exchange_weak_explicit(obj, expected, desired, \
succ, fail) \
({ \
bool ___v; \
REQUIRE(isc_mutex_lock(&(obj)->m) == ISC_R_SUCCESS); \
___v = ((obj)->v == *expected); \
*expected = (obj)->v; \
(obj)->v = ___v ? desired : (obj)->v; \
REQUIRE(isc_mutex_unlock(&(obj)->m) == ISC_R_SUCCESS); \
___v; \
})
#define atomic_load(obj) \
atomic_load_explicit(obj, memory_order_seq_cst)
@@ -126,7 +169,11 @@ typedef struct atomic_bool_s {
atomic_fetch_add_explicit(obj, arg, memory_order_seq_cst)
#define atomic_fetch_sub(obj, arg) \
atomic_fetch_sub_explicit(obj, arg, memory_order_seq_cst)
#define atomic_compare_exchange_strong(obj, expected, desired) \
atomic_compare_exchange_strong_explicit(obj, expected, desired, memory_order_seq_cst, memory_order_seq_cst)
#define atomic_compare_exchange_weak(obj, expected, desired) \
atomic_compare_exchange_weak_explicit(obj, expected, desired, memory_order_seq_cst, memory_order_seq_cst)
#define atomic_compare_exchange_strong(obj, expected, desired) \
atomic_compare_exchange_strong_explicit(obj, expected, desired, \
memory_order_seq_cst, \
memory_order_seq_cst)
#define atomic_compare_exchange_weak(obj, expected, desired) \
atomic_compare_exchange_weak_explicit(obj, expected, desired, \
memory_order_seq_cst, \
memory_order_seq_cst)