Android NDK Beginner's Guide - Second Edition

Time for action – running and synchronizing a thread

Let's create a native thread using the POSIX PThread API and attach it to the VM:

1. In Store.cpp, include unistd.h, which gives access to the sleep() function:

   #include "Store.h"
   #include <cstdlib>
   #include <cstring>
   #include <unistd.h>
   ...

   Implement startWatcher(). This method is executed from the UI thread. To do so, first instantiate and initialize a StoreWatcher structure.

2. Then, initialize and launch a native thread with the pthread POSIX API:

   StoreWatcher* startWatcher(JavaVM* pJavaVM, Store* pStore,
           jobject pLock) {
       StoreWatcher* watcher = new StoreWatcher();
       watcher->mJavaVM = pJavaVM;
       watcher->mStore = pStore;
       watcher->mLock = pLock;
       watcher->mRunning = true;
   ...

   Then, initialize and launch ...