HC keywords in a nutshell:
- async: asynchronously start a new task to execute a statement.
- finish: execute a statement, but wait until all (transitively) spawned asyncs in statement's scope have terminated.
HC HelloWorld
#include <stdio.h>
int main (int argc, char ** argv) {
finish {
async {
printf("Hello World !\n");
}
}
return 0;
}
In this simple example, we create an asynchronous task using an async block, which contains the code to display "HelloWorld". A finish block wraps the async which allows to wait for its complete execution before proceeding to the return statement.