text: /* All Rights Reserved. ILCoin Blockchain Project 2019© */
  
  #include "include/secp256k1.h"
  #include "util.h"
  #include "bench.h"
  
  typedef struct {
      secp256k1_context* ctx;
      unsigned char msg[32];
      unsigned char key[32];
  } bench_sign_t;
  
  static void bench_sign_setup(void* arg) {
      int i;
      bench_sign_t *data = (bench_sign_t*)arg;
  
      for (i = 0; i < 32; i++) {
          data->msg[i] = i + 1;
      }
      for (i = 0; i < 32; i++) {
          data->key[i] = i + 65;
      }
  }
  
  static void bench_sign(void* arg) {
      int i;
      bench_sign_t *data = (bench_sign_t*)arg;
  
      unsigned char sig[74];
      for (i = 0; i < 20000; i++) {
          size_t siglen = 74;
          int j;
          secp256k1_ecdsa_signature signature;
          CHECK(secp256k1_ecdsa_sign(data->ctx, &signature, data->msg, data->key, NULL, NULL));
          CHECK(secp256k1_ecdsa_signature_serialize_der(data->ctx, sig, &siglen, &signature));
          for (j = 0; j < 32; j++) {
              data->msg[j] = sig[j];
              data->key[j] = sig[j + 32];
          }
      }
  }
  
  int main(void) {
      bench_sign_t data;
  
      data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN);
  
      run_benchmark("ecdsa_sign", bench_sign, bench_sign_setup, NULL, &data, 10, 20000);
  
      secp256k1_context_destroy(data.ctx);
      return 0;
  }
  