修复静态链接 OpenSSL 导致的崩溃

[lanthora]

编译纯静态二进制后运行时大概率出错，怀疑是 musl 多线程同时加密解密时出现问题。尝试过每次使用 ctx 时 new, 并在使用后 free, 问题就会出现在 EVP_CIPHER_CTX_free。修改为全局锁后这个问题没有再出现。

coredumpctl info

Module /usr/bin/candy-service without build-id.
Stack trace of thread 1930:
#0  0x0000000000b7ab36 __restore_sigs (/usr/bin/candy-service + 0x77ab36)
#1  0x00000000005d6173 evp_cipher_free_int (/usr/bin/candy-service + 0x1d6173)
#2  0x00000000005d61f7 EVP_CIPHER_free (/usr/bin/candy-service + 0x1d61f7)
#3  0x00000000005d05f8 EVP_CIPHER_CTX_reset (/usr/bin/candy-service + 0x1d05f8)
#4  0x00000000005bfa86 _ZN5candy4Peer7encryptERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE (/usr/bin/candy-service + 0x1bfa86)
#5  0x00000000005c0415 _ZN5candy4Peer20sendHeartbeatMessageEv (/usr/bin/candy-service + 0x1c0415)
#6  0x00000000005c162f _ZN5candy4Peer4tickEv (/usr/bin/candy-service + 0x1c162f)
#7  0x00000000005bbc59 _ZN5candy11PeerManager4tickEv (/usr/bin/candy-service + 0x1bbc59)
#8  0x00000000005bbe09 _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN5candy11PeerManager15startTickThreadEvEUlvE_EEEEE6_M_runEv (/usr/bin/candy-service + 0x1bbe09)
#9  0x0000000000b5326d execute_native_thread_routine (/usr/bin/candy-service + 0x75326d)
#10 0x0000000000b81599 start (/usr/bin/candy-service + 0x781599)
ELF object binary architecture: AMD x86-64