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protect ossl cleanup from multithreading errors #1472

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merged 1 commit into from
May 18, 2023
Merged

protect ossl cleanup from multithreading errors #1472

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3 changes: 2 additions & 1 deletion src/common/common.c
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
#if defined(OQS_USE_OPENSSL)
#include <openssl/evp.h>
#include "ossl_helpers.h"
CRYPTO_ONCE OQS_ONCE_STATIC_FREE;
#endif

/* Identifying the CPU is expensive so we cache the results in cpu_ext_data */
Expand Down Expand Up @@ -216,7 +217,7 @@ OQS_API const char *OQS_version(void) {

OQS_API void OQS_destroy(void) {
#if defined(OQS_USE_OPENSSL)
oqs_free_ossl_objects();
CRYPTO_THREAD_run_once(&OQS_ONCE_STATIC_FREE, oqs_free_ossl_objects);
#endif
return;
}
Expand Down