wasmer-c-api-5.c

    // Create module name for our imports
    // represented in bytes for UTF-8 compatability
    char *module_name = "env";
    wasmer_byte_array module_name_bytes;
    module_name_bytes.bytes = module_name;
    module_name_bytes.bytes_len = strlen(module_name);

    // Define a function import
    char *import_name = "_print_str";
    wasmer_byte_array import_name_bytes;
    import_name_bytes.bytes = import_name;
    import_name_bytes.bytes_len = strlen(import_name);
    wasmer_import_t func_import;
    func_import.module_name = module_name_bytes;
    func_import.import_name = import_name_bytes;
    func_import.tag = WASM_FUNCTION;
    func_import.value.func = func;

    // Define a memory import
    char *import_memory_name = "memory";
    wasmer_byte_array import_memory_name_bytes;
    import_memory_name_bytes.bytes = import_memory_name;
    import_memory_name_bytes.bytes_len = strlen(import_memory_name);
    wasmer_import_t memory_import;
    memory_import.module_name = module_name_bytes;
    memory_import.import_name = import_memory_name_bytes;
    memory_import.tag = WASM_MEMORY;
    wasmer_memory_t *memory = NULL;
    wasmer_limits_t descriptor;
    descriptor.min = 256;
    wasmer_limit_option_t max;
    max.has_some = true;
    max.some = 256;
    descriptor.max = max;
    wasmer_result_t memory_result = wasmer_memory_new(&memory, descriptor);
    if (memory_result != WASMER_OK)
    {
        print_wasmer_error();
    }
    memory_import.value.memory = memory;

    // Define a global import
    char *import_global_name = "__memory_base";
    wasmer_byte_array import_global_name_bytes;
    import_global_name_bytes.bytes = import_global_name;
    import_global_name_bytes.bytes_len = strlen(import_global_name);
    wasmer_import_t global_import;
    global_import.module_name = module_name_bytes;
    global_import.import_name = import_global_name_bytes;
    global_import.tag = WASM_GLOBAL;
    wasmer_value_t val;
    val.tag = WASM_I32;
    val.value.I32 = 1024;
    wasmer_global_t *global = wasmer_global_new(val, false);
    global_import.value.global = global;

    // Define an array containing our imports
    wasmer_import_t imports[] = {func_import, global_import, memory_import};