interp.cpp

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#include <sysio/vm/backend.hpp>
#include <sysio/vm/error_codes.hpp>
#include <sysio/vm/watchdog.hpp>
 
#include <iostream>
 
using namespace sysio;
using namespace sysio::vm;
 
int main(int argc, char** argv) {
   // Thread specific `allocator` used for wasm linear memory.
   wasm_allocator wa;
 
   if (argc < 2) {
      std::cerr << "Error, no wasm file provided\n";
      return -1;
   }
 
   std::string filename = argv[1];
 
   watchdog wd{std::chrono::seconds(3)};
 
   try {
      // Read the wasm into memory.
      auto code = read_wasm( filename );
 
      // Instaniate a new backend using the wasm provided.
      backend<std::nullptr_t, interpreter, default_options> bkend( code, &wa );
 
      // Execute any exported functions provided by the wasm.
      bkend.execute_all(wd);
 
   } catch ( const sysio::vm::exception& ex ) {
      std::cerr << "sys-vm interpreter error\n";
      std::cerr << ex.what() << " : " << ex.detail() << "\n";
   }
   return 0;
}