Create worker thread pool with pthread c

#Create worker thread pool with pthread c how to#

Each thread requires the allocation of memory in both the kernel memory space and your programвЂ™s memory space. Threading has a real cost to your program (and the system) in terms of memory use and performance. Note:В For a historical look at the threading architecture of Mac OS, and for additional background information on threads, see Technical Note TN2028, вЂњThreading ArchitecturesвЂќ.

#Create worker thread pool with pthread c how to#

This chapter provides an overview of the thread technologies available in OS X and iOS along with examples of how to use those technologies in your applications.

Because they are inside the same process space, however, all threads in a single application share the same virtual memory space and have the same access rights as the process itself. A thread can communicate with other threads and other processes, perform I/O operations, and do anything else you might need it to do. Each thread has its own execution stack and is scheduled for runtime separately by the kernel. When an application spawns a new thread, that thread becomes an independent entity inside of the application's process space.

Applications can spawn additional threads, each of which executes the code of a specific function. Every application starts with a single thread, which runs the application's main function. Each process (application) in OS X or iOS is made up of one or more threads, each of which represents a single path of execution through the application's code.