task.h File Reference

#include <stdint.h>
#include <interrupts/isr.h>
#include <mem/vmm.h>

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Data Structures
struct	task_t
	internal representation of a task More...

Macros
#define	_4KB   0x1000
	4KB are 4096 bytes, often used for stacks

Typedefs
typedef uint8_t	task_stack_t
	stacks are measured in bytes
typedef uint32_t	task_pid_t
	unique process ID

Enumerations
enum	task_state_t { TASK_STOPPED, TASK_RUNNING }
	state of a task

Functions
task_pid_t	task_add (task_t *task)
	Adds a new task to the task list and associates a PID. More...
task_pid_t	task_create_kernel (void *entry_point, page_directory_t *page_directory, size_t kernel_stack_len)
	Creates a kernel task. More...
task_pid_t	task_create_user (void *entry_point, page_directory_t *page_directory, size_t kernel_stack_len, size_t user_stack_len, void *elf)
	Creates a user task. More...
void	task_stop (task_pid_t pid)
	Stops a task. More...
void	task_destroy (task_pid_t pid)
	Destroys a task. More...
task_pid_t	task_get_next_task (task_pid_t pid)
	Returns the next task from the task list. More...
task_pid_t	task_get_next_task_with_state (task_pid_t pid, task_state_t state)
	Returns the next task from the task list with a specified state. More...
task_state_t	task_get_ticks (task_pid_t pid)
	Returns a task's number of remaining ticks. More...
uint32_t	task_set_ticks (task_pid_t pid, uint32_t ticks)
	Sets a task's number of remaining ticks. More...
cpu_state_t *	task_get_cpu (task_pid_t pid)
	Returns a task's CPU state. More...
void	task_set_cpu (task_pid_t pid, cpu_state_t *cpu)
	Sets a task's CPU state. More...
page_directory_t *	task_get_page_directory (task_pid_t pid)
	Returns a task's page directory. More...
uint8_t	task_get_vm86 (task_pid_t pid)
	Returns whether a task is a VM86 task. More...
void *	task_get_elf (task_pid_t pid)
	Returns a task's ELF file. More...
void	task_dump ()
	Dumps the task list. More...