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Add more validation of oplists before expanding data

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Patrick Pelissier committed 2020-05-10 11:16:46 +02:00
1 parent 7d17223332
commit 45d2a529b5
5 files changed
+99 -19
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m-snapshot.h
+33 -6
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@@ -36,6 +36,7 @@
((name, __VA_ARGS__, M_GLOBAL_OPLIST_OR_DEF(__VA_ARGS__)() ), \
(name, __VA_ARGS__ )))
/* Define a Single Producer Multiple Consummer snapshot and its functions
USAGE: SNAPSHOT_SPMC_DEF(name, type[, oplist]) */
#define SNAPSHOT_SPMC_DEF(name, ...) \
@@ -43,6 +44,7 @@
((name, __VA_ARGS__, M_GLOBAL_OPLIST_OR_DEF(__VA_ARGS__)() ), \
(name, __VA_ARGS__ )))
/* Define a Multiple Producer Multiple Consummer snapshot and its functions
USAGE: SNAPSHOT_MPMC_DEF(name, type[, oplist]) */
#define SNAPSHOT_MPMC_DEF(name, ...) \
@@ -50,6 +52,7 @@
((name, __VA_ARGS__, M_GLOBAL_OPLIST_OR_DEF(__VA_ARGS__)() ), \
(name, __VA_ARGS__ )))
/* Define the oplist of a snapshot (SPSC, SPMC or MPMC).
USAGE: SNAPSHOT_OPLIST(name[, oplist]) */
#define SNAPSHOT_OPLIST(...) \
@@ -109,14 +112,22 @@
SNAPSHOTI_SPSC_FLAGS_CONTRACT(f); \
} while (0)
// Defered evaluation of the arguments.
#define SNAPSHOTI_SPSC_DEF_P1(arg) SNAPSHOTI_SPSC_DEF_P2 arg
// A snapshot is basically an atomic triple buffer (Lock Free)
// between a single producer thread and a single consummer thread.
#define SNAPSHOTI_SPSC_MAX_BUFFER 3
#define SNAPSHOTI_SPSC_DEF_P2(name, type, oplist) \
// Defered evaluation of the arguments.
#define SNAPSHOTI_SPSC_DEF_P1(arg) SNAPSHOTI_SPSC_DEF_P2 arg
/* Validate the oplist before going further */
#define SNAPSHOTI_SPSC_DEF_P2(name, type, oplist) \
M_IF_OPLIST(oplist)(SNAPSHOTI_SPSC_DEF_P3, SNAPSHOTI_SPSC_DEF_FAILURE)(name, type, oplist)
/* Stop processing with a compilation failure */
#define SNAPSHOTI_SPSC_DEF_FAILURE(name, type, oplist) \
M_STATIC_FAILURE(M_LIB_NOT_AN_OPLIST, "(SNAPSHOT_SPSC_DEF): the given argument is not a valid oplist: " #oplist)
#define SNAPSHOTI_SPSC_DEF_P3(name, type, oplist) \
\
/* Create an aligned type to avoid false sharing between threads */ \
typedef struct M_C(name, _aligned_type_s) { \
@@ -490,7 +501,15 @@ static inline void snapshot_mrsw_int_read_end(snapshot_mrsw_int_t s, unsigned in
// Defered evaluation
#define SNAPSHOTI_SPMC_DEF_P1(arg) SNAPSHOTI_SPMC_DEF_P2 arg
#define SNAPSHOTI_SPMC_DEF_P2(name, type, oplist) \
/* Validate the oplist before going further */
#define SNAPSHOTI_SPMC_DEF_P2(name, type, oplist) \
M_IF_OPLIST(oplist)(SNAPSHOTI_SPMC_DEF_P3, SNAPSHOTI_SPMC_DEF_FAILURE)(name, type, oplist)
/* Stop processing with a compilation failure */
#define SNAPSHOTI_SPMC_DEF_FAILURE(name, type, oplist) \
M_STATIC_FAILURE(M_LIB_NOT_AN_OPLIST, "(SNAPSHOT_SPMC_DEF): the given argument is not a valid oplist: " #oplist)
#define SNAPSHOTI_SPMC_DEF_P3(name, type, oplist) \
\
/* Create an aligned type to avoid false sharing between threads */ \
typedef struct M_C(name, _aligned_type_s) { \
@@ -579,7 +598,15 @@ static inline void snapshot_mrsw_int_read_end(snapshot_mrsw_int_t s, unsigned in
// Defered evaluation
#define SNAPSHOTI_MPMC_DEF_P1(arg) SNAPSHOTI_MPMC_DEF_P2 arg
#define SNAPSHOTI_MPMC_DEF_P2(name, type, oplist) \
/* Validate the oplist before going further */
#define SNAPSHOTI_MPMC_DEF_P2(name, type, oplist) \
M_IF_OPLIST(oplist)(SNAPSHOTI_MPMC_DEF_P3, SNAPSHOTI_MPMC_DEF_FAILURE)(name, type, oplist)
/* Stop processing with a compilation failure */
#define SNAPSHOTI_MPMC_DEF_FAILURE(name, type, oplist) \
M_STATIC_FAILURE(M_LIB_NOT_AN_OPLIST, "(SNAPSHOT_MPMC_DEF): the given argument is not a valid oplist: " #oplist)
#define SNAPSHOTI_MPMC_DEF_P3(name, type, oplist) \
\
SNAPSHOTI_SPMC_DEF_P1((M_C(name, _mrsw), type, oplist)) \
\