v8/third_party/wasm-api/example/finalize.cc
Jakob Kummerow 912b3912b4 [wasm-c-api] Add upstream examples as tests
Plus a script to compile/link/run them.

Change-Id: Iac8ffcda3a73902261c07a7b4e5d967a19414c75
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1564058
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60911}
2019-04-17 18:04:16 +00:00

71 lines
1.7 KiB
C++

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <cinttypes>
#include "wasm.hh"
const int iterations = 100000;
void finalize(void* data) {
intptr_t i = reinterpret_cast<intptr_t>(data);
if (i % (iterations / 10) == 0) {
std::cout << "Finalizing #" << i << "..." << std::endl;
}
}
void run() {
// Initialize.
std::cout << "Initializing..." << std::endl;
auto engine = wasm::Engine::make();
auto store_ = wasm::Store::make(engine.get());
auto store = store_.get();
// Load binary.
std::cout << "Loading binary..." << std::endl;
std::ifstream file("finalize.wasm");
file.seekg(0, std::ios_base::end);
auto file_size = file.tellg();
file.seekg(0);
auto binary = wasm::vec<byte_t>::make_uninitialized(file_size);
file.read(binary.get(), file_size);
file.close();
if (file.fail()) {
std::cout << "> Error loading module!" << std::endl;
return;
}
// Compile.
std::cout << "Compiling module..." << std::endl;
auto module = wasm::Module::make(store, binary);
if (!module) {
std::cout << "> Error compiling module!" << std::endl;
return;
}
// Instantiate.
std::cout << "Instantiating modules..." << std::endl;
for (int i = 0; i <= iterations; ++i) {
if (i % (iterations / 10) == 0) std::cout << i << std::endl;
auto instance = wasm::Instance::make(store, module.get(), nullptr);
if (!instance) {
std::cout << "> Error instantiating module " << i << "!" << std::endl;
return;
}
instance->set_host_info(reinterpret_cast<void*>(i), &finalize);
}
// Shut down.
std::cout << "Shutting down..." << std::endl;
}
int main(int argc, const char* argv[]) {
run();
std::cout << "Done." << std::endl;
return 0;
}