process Struct Reference

A single process. More...

#include <process.h>

Data Fields
char	name [PROCESS_NAME_MAX_LEN]
pid_t	pid
struct address_space *	as
llist_t	threads
size_t	refcount
struct file *	files [PROCESS_FD_COUNT]
	Open file descriptors table. More...
spinlock_t	files_lock
spinlock_t	lock
	Transmitted to the parent process during wait()

Detailed Description

The struct contains information about the process, including its name, unique ID and resources context (address space, file descriptors, ...). It also contains a list of all the process's active threads.

Field Documentation

as

struct address_space* process::as

The process's address space

files

struct file* process::files[PROCESS_FD_COUNT]

This table is lock protected by files_lock, one must always take this lock when accessing a process' open files (read AND write).

files_lock

spinlock_t process::files_lock

Lock for open_files

name

char process::name[PROCESS_NAME_MAX_LEN]

The thread's name

pid

pid_t process::pid

Process' unique ID

refcount

size_t process::refcount

Reference count to this process. We only kill a process once all of its threads have been released.

threads

llist_t process::threads

Linked list of the process' active threads

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The documentation for this struct was generated from the following file:

• include/kernel/process.h