diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/bls_c.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/bls_c.cpp b/src/bls_c.cpp index ccdc909..563ecc9 100644 --- a/src/bls_c.cpp +++ b/src/bls_c.cpp @@ -36,6 +36,23 @@ int blsInit(int curve, int maxUnitSize) return -1; } +#if CYBOZU_CPP_VERSION >= CYBOZU_CPP_VERSION_CPP11 +#include <mutex> +static std::mutex g_mutex; +static int g_curve = -1; + +int blsInitThreadSafe(int curve, int maxUnitSize) +{ + int ret = 0; + std::lock_guard<std::mutex> lock(g_mutex); + if (g_curve != curve) { + ret = blsInit(curve, maxUnitSize); + g_curve = curve; + } + return ret; +} +#endif + static inline const mclBnG1 *cast(const G1* x) { return (const mclBnG1*)x; } static inline const mclBnG2 *cast(const G2* x) { return (const mclBnG2*)x; } |