mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 22:25:40 +00:00
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
#include <stdio.h>
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#include "../wasmer.h"
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#include <assert.h>
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#include <stdint.h>
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int main()
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{
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// Read the wasm file bytes
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FILE *file = fopen("assets/sum.wasm", "r");
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fseek(file, 0, SEEK_END);
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long len = ftell(file);
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uint8_t *bytes = malloc(len);
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fseek(file, 0, SEEK_SET);
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fread(bytes, 1, len, file);
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fclose(file);
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wasmer_module_t *module_one = NULL;
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wasmer_result_t compile_result = wasmer_compile(&module_one, bytes, len);
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printf("Compile result: %d\n", compile_result);
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assert(compile_result == WASMER_OK);
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wasmer_serialized_module_t *serialized_module = NULL;
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wasmer_result_t serialize_result = wasmer_module_serialize(&serialized_module, module_one);
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printf("Serialize result: %d\n", serialize_result);
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assert(serialize_result == WASMER_OK);
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wasmer_byte_array serialized_module_bytes = wasmer_serialized_module_bytes(serialized_module);
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printf("Serialized module pointer: %p\n", serialized_module_bytes.bytes);
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printf("Serialized module length: %d\n", serialized_module_bytes.bytes_len);
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assert(serialized_module_bytes.bytes != NULL);
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assert(serialized_module_bytes.bytes_len > 8);
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assert(serialized_module_bytes.bytes[0] == 'W');
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assert(serialized_module_bytes.bytes[1] == 'A');
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assert(serialized_module_bytes.bytes[2] == 'S');
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assert(serialized_module_bytes.bytes[3] == 'M');
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assert(serialized_module_bytes.bytes[4] == 'E');
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assert(serialized_module_bytes.bytes[5] == 'R');
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wasmer_module_t *module_two = NULL;
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wasmer_result_t unserialize_result = wasmer_module_deserialize(&module_two, serialized_module);
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assert(unserialize_result == WASMER_OK);
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wasmer_import_t imports[] = {};
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wasmer_instance_t *instance = NULL;
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wasmer_result_t instantiate_result = wasmer_module_instantiate(module_two, &instance, imports, 0);
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printf("Instantiate result: %d\n", compile_result);
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assert(instantiate_result == WASMER_OK);
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wasmer_value_t param_one;
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param_one.tag = WASM_I32;
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param_one.value.I32 = 7;
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wasmer_value_t param_two;
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param_two.tag = WASM_I32;
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param_two.value.I32 = 8;
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wasmer_value_t params[] = {param_one, param_two};
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wasmer_value_t result_one;
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wasmer_value_t results[] = {result_one};
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wasmer_result_t call_result = wasmer_instance_call(instance, "sum", params, 2, results, 1);
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printf("Call result: %d\n", call_result);
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printf("Result: %d\n", results[0].value.I32);
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assert(results[0].value.I32 == 15);
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assert(call_result == WASMER_OK);
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wasmer_serialized_module_t *serialized_module_two = NULL;
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wasmer_result_t serialized_module_from_bytes_result = wasmer_serialized_module_from_bytes(
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&serialized_module_two,
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serialized_module_bytes.bytes,
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serialized_module_bytes.bytes_len
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);
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assert(serialized_module_from_bytes_result == WASMER_OK);
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wasmer_module_t *module_three = NULL;
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wasmer_result_t unserialized_result_two = wasmer_module_deserialize(&module_three, serialized_module_two);
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assert(unserialized_result_two == WASMER_OK);
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wasmer_instance_t *instance_two = NULL;
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wasmer_result_t instantiate_result_two = wasmer_module_instantiate(module_three, &instance, imports, 0);
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assert(instantiate_result_two == WASMER_OK);
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printf("Destroy the serialized module\n");
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wasmer_serialized_module_destroy(serialized_module);
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wasmer_serialized_module_destroy(serialized_module_two);
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printf("Destroy instance\n");
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wasmer_instance_destroy(instance);
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printf("Destroy modules\n");
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wasmer_module_destroy(module_one);
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wasmer_module_destroy(module_two);
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return 0;
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}
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