process - Process abstraction
A zircon process is an instance of a program in the traditional sense: a set of instructions that will be executed by one or more threads, along with a collection of resources.
The process object is a container of the following resources:
In general, it is associated with code, which it is executing until it is forcefully terminated or the program exits.
Processes are owned by jobs and allow an application that is composed by more than one process to be treated as a single entity, from the perspective of resource and permission limits, as well as lifetime control.
A process is created via zx_process_create()
and its execution begins with zx_process_start()
.
The process stops execution when:
zx_process_exit()
The call to zx_process_start()
cannot be issued twice. New threads cannot be added to a process that was started and then its last thread has exited.
zx_process_create()
- create a new process within a jobzx_process_read_memory()
- read from a process's address spacezx_process_start()
- cause a new process to start executingzx_process_write_memory()
- write to a process's address spacezx_process_exit()
- exit the current processzx_job_create()
- create a new job within a parent jobzx_task_create_exception_channel()
- listen for task exceptionszx_vmar_map()
- Map memory into an address space rangezx_vmar_protect()
- Change permissions on an address space rangezx_vmar_unmap()
- Unmap memory from an address space range