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Add JSON_HAVE_SYNC_BUILTINS and JSON_HAVE_ATOMIC_BUILTINS for autoheader

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Added JSON_HAVE_SYNC_BUILTINS and JSON_HAVE_ATOMIC_BUILTINS defines to
jansson_config.h.cmake as well as in the autoheader for autoconf.
This commit is contained in:
Maxim Zhukov 2018-03-21 10:45:30 +03:00
parent b23025d72b
commit 50f29f9b1a
2 changed files with 19 additions and 1 deletions
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12
CMakeLists.txt
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@ -306,6 +306,18 @@ endif()
check_c_source_compiles ("int main() { unsigned long val; __sync_bool_compare_and_swap(&val, 0, 1); __sync_add_and_fetch(&val, 1); __sync_sub_and_fetch(&val, 1); return 0; } " HAVE_SYNC_BUILTINS)
check_c_source_compiles ("int main() { char l; unsigned long v; __atomic_test_and_set(&l, __ATOMIC_RELAXED); __atomic_store_n(&v, 1, __ATOMIC_RELEASE); __atomic_load_n(&v, __ATOMIC_ACQUIRE); __atomic_add_fetch(&v, 1, __ATOMIC_ACQUIRE); __atomic_sub_fetch(&v, 1, __ATOMIC_RELEASE); return 0; }" HAVE_ATOMIC_BUILTINS)
if (HAVE_SYNC_BUILTINS)
set(JSON_HAVE_SYNC_BUILTINS 1)
else()
set(JSON_HAVE_SYNC_BUILTINS 0)
endif()
if (HAVE_ATOMIC_BUILTINS)
set(JSON_HAVE_ATOMIC_BUILTINS 1)
else()
set(JSON_HAVE_ATOMIC_BUILTINS 0)
endif()
set (JANSSON_INITIAL_HASHTABLE_ORDER 3 CACHE STRING "Number of buckets new object hashtables contain is 2 raised to this power. The default is 3, so empty hashtables contain 2^3 = 8 buckets.")
# configure the public config file

8
cmake/jansson_config.h.cmake
View File

@ -59,10 +59,16 @@
/* If locale.h and localeconv() are available, define to 1, otherwise to 0. */
#define JSON_HAVE_LOCALECONV @JSON_HAVE_LOCALECONV@
/* If __atomic builtins are available they will be used to manage
reference counts of json_t. */
#define JSON_HAVE_ATOMIC_BUILTINS @JSON_HAVE_ATOMIC_BUILTINS@
/* If __atomic builtins are not available we try using __sync builtins
to manage reference counts of json_t. */
#define JSON_HAVE_SYNC_BUILTINS @JSON_HAVE_SYNC_BUILTINS@
/* Maximum recursion depth for parsing JSON input.
This limits the depth of e.g. array-within-array constructions. */
#define JSON_PARSER_MAX_DEPTH 2048
#endif