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base: Add atomic CAS macros/functions

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This commit is contained in:
Nicolas Williams
2023-01-09 11:26:21 -06:00
parent 33f90a6604
commit 08c48c10c8
2 changed files with 182 additions and 1 deletions
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80
lib/base/test_base.c
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@@ -64,6 +64,7 @@
#include <fcntl.h>
#include "baselocl.h"
#include "heimbase-atomics.h"
static void HEIM_CALLCONV
memory_free(heim_object_t obj)
@@ -1273,6 +1274,84 @@ test_array()
return 0;
}
/* This function tests only that heimbase-atomics.h compiles */
static int
test_atomics(void)
{
heim_base_atomic(void *) tptr;
heim_base_atomic(uint32_t) tu32;
heim_base_atomic(uint64_t) tu64;
heim_base_atomic_init(&tptr, NULL);
heim_base_atomic_init(&tu32, 0);
heim_base_atomic_init(&tu64, 0);
if (heim_base_atomic_load(&tptr))
return 1;
if (heim_base_atomic_load(&tu32))
return 1;
if (heim_base_atomic_load(&tu64))
return 1;
heim_base_atomic_store(&tptr, &tptr);
heim_base_atomic_store(&tu32, 1);
heim_base_atomic_store(&tu64, 1);
if (heim_base_atomic_load(&tptr) != &tptr)
return 1;
if (heim_base_atomic_load(&tu32) != 1)
return 1;
if (heim_base_atomic_load(&tu64) != 1)
return 1;
if (heim_base_atomic_inc_32(&tu32) != 2 ||
heim_base_atomic_load(&tu32) != 2)
return 1;
if (heim_base_atomic_inc_64(&tu64) != 2 ||
heim_base_atomic_load(&tu64) != 2)
return 1;
if (heim_base_atomic_dec_32(&tu32) != 1 ||
heim_base_atomic_load(&tu32) != 1)
return 1;
if (heim_base_atomic_dec_64(&tu64) != 1 ||
heim_base_atomic_load(&tu64) != 1)
return 1;
heim_base_exchange_pointer(&tptr, (void *)&tu32);
if (heim_base_atomic_load(&tptr) != &tu32)
return 1;
heim_base_exchange_32(&tu32, 32);
if (heim_base_atomic_load(&tu32) != 32)
return 1;
heim_base_exchange_64(&tu64, 64);
if (heim_base_atomic_load(&tu64) != 64)
return 1;
if (heim_base_cas_pointer(&tptr, (void *)&tu32, (void *)&tu64) != &tu32)
return 1;
if (heim_base_cas_pointer(&tptr, (void *)&tu32, (void *)&tptr) != &tu64)
return 1;
if (heim_base_atomic_load(&tptr) != (void *)&tu64)
return 1;
if (heim_base_cas_32(&tu32, 32, 4) != 32)
return 1;
if (heim_base_cas_32(&tu32, 32, 4) != 4)
return 1;
if (heim_base_atomic_load(&tu32) != 4)
return 1;
if (heim_base_cas_64(&tu64, 64, 4) != 64)
return 1;
if (heim_base_cas_64(&tu64, 64, 4) != 4)
return 1;
if (heim_base_atomic_load(&tu64) != 4)
return 1;
return 0;
}
int
main(int argc, char **argv)
{
@@ -1295,6 +1374,7 @@ main(int argc, char **argv)
res |= test_db(NULL, NULL);
res |= test_db("json", argc > 1 ? argv[1] : "test_db.json");
res |= test_array();
res |= test_atomics();
return res ? 1 : 0;
}