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evmc
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example: return error code on failure 

Co-authored-by: Paweł Bylica <chfast@gmail.com>
This commit is contained in:
Alex Beregszaszi 2019-07-23 13:00:20 +01:00 committed by Paweł Bylica
parent df5afabf33
commit c7999062c5
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1 changed files with 7 additions and 4 deletions
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11
examples/example.c
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@ -15,10 +15,11 @@ int main()
{
struct evmc_instance* vm = evmc_create_example_vm();
if (!evmc_is_abi_compatible(vm))
return 1;
return -1;
// EVM bytecode goes here. This is one of the examples.
const uint8_t code[] = "\x30\x60\x00\x52\x59\x60\x00\xf3";
const size_t code_size = sizeof(code);
const size_t code_size = sizeof(code) - 1;
const uint8_t input[] = "Hello World!";
const evmc_uint256be value = {{1, 0}};
const evmc_address addr = {{0, 1, 2}};
@ -34,9 +35,11 @@ int main()
msg.depth = 0;
struct evmc_result result = evmc_execute(vm, ctx, EVMC_HOMESTEAD, &msg, code, code_size);
printf("Execution result:\n");
int exit_code = 0;
if (result.status_code != EVMC_SUCCESS)
{
printf(" EVM execution failure: %d\n", result.status_code);
exit_code = result.status_code;
}
else
{
@ -46,11 +49,11 @@ int main()
printf(" Output: ");
size_t i = 0;
for (i = 0; i < result.output_size; i++)
printf("%02x ", result.output_data[i]);
printf("%02x", result.output_data[i]);
printf("\n");
}
evmc_release_result(&result);
example_host_destroy_context(ctx);
evmc_destroy(vm);
return 0;
return exit_code;
}