process.cpp File Reference

#include <drivers/graphics/vbe/vbe_graphics.hpp>
#include "process.h"
#include "memory/memory.h"
#include "memory/heap/kheap.h"
#include "memory/paging/paging.h"
#include "fs/file.h"
#include "common/status.h"
#include "task.h"
#include "common/string.h"
#include "kernel.h"
#include "formats/elf/ELFFile.hpp"

Functions
struct process *	process_current ()
struct process *	process_get (int process_id)
int	process_switch (struct process *process)
int	elf_load (const char *filename, ELFFile **elf_file)
int	process_map_memory (struct process *process)
int	process_get_free_slot ()
int	process_load_switch (const char *filename, struct process *process)
int	process_get_next_allocation_index (struct process *process)
int	process_load_for_slot (const char *filename, struct process *process, int process_slot)
int	process_load (const char *filename, struct process *process)
void	process_pushkey (struct process *process, char c)
char	process_popkey (struct process *process)
void *	process_malloc (struct process *process, size_t size)
void *	process_malloc_flags (struct process *process, size_t size, int flags)
void	process_free (struct process *process, void *address)
void	process_terminate (struct process *process)
struct process **	process_get_list ()

Variables
struct process *	current_process = 0

Function Documentation

elf_load()

int elf_load	(	const char *	filename,
		ELFFile **	elf_file
	)

References data, fclose(), filename, file_stat::filesize, fopen(), fread(), fstat(), and kzalloc().

process_current()

struct process * process_current

(

)

References current_process.

process_free()

void process_free	(	struct process *	process,
		void *	address
	)

References process::allocations, kfree(), and PROCESS_MAX_ALLOCATIONS.

process_get()

struct process * process_get

(

int

process_id

)

References MAX_PROCESSES.

process_get_free_slot()

int process_get_free_slot

(

)

References EISTKN, and MAX_PROCESSES.

process_get_list()

struct process ** process_get_list

(

)

process_get_next_allocation_index()

int process_get_next_allocation_index

(

struct process *

process

)

References process::allocations, ENOMEM, and PROCESS_MAX_ALLOCATIONS.

process_load()

int process_load	(	const char *	filename,
		struct process *	process
	)

References EISTKN, filename, process_get_free_slot(), and process_load_for_slot().

process_load_for_slot()

int process_load_for_slot	(	const char *	filename,
		struct process *	process,
		int	process_slot
	)

References process::bss, EISTKN, process::elf, ENOMEM, ERROR_I, filename, process::filename, process::framebuffer, process::id, ISERR, kfree(), kzalloc(), task::process, process_free(), process_get(), process_malloc(), process_map_memory(), PROGRAM_VIRTUAL_STACK_SIZE, process::stack, strncpy(), process::task, task_free(), task_new(), and VBEGraphics::the().

process_load_switch()

int process_load_switch	(	const char *	filename,
		struct process *	process
	)

References filename, process_load(), and process_switch().

process_malloc()

void * process_malloc	(	struct process *	process,
		size_t	size
	)

References PAGING_ACCESS_FROM_ALL, PAGING_IS_PRESENT, PAGING_IS_WRITEABLE, process_malloc_flags(), and size.

process_malloc_flags()

void * process_malloc_flags	(	struct process *	process,
		size_t	size,
		int	flags
	)

References process::allocations, ENOMEM, flags, kfree(), kmalloc(), task::page_directory, paging_align_address(), paging_map_to(), process_get_next_allocation_index(), size, and process::task.

process_map_memory()

int process_map_memory

(

struct process *

process

)

References process::elf, ELFFile::get_header(), ELFFile::get_program_header(), memcpy(), task::page_directory, PAGING_ACCESS_FROM_ALL, paging_align_address(), paging_align_address_to_lower_page(), PAGING_IS_PRESENT, PAGING_IS_WRITEABLE, paging_map_to(), ELFFile::PF_W, process_malloc_flags(), PROGRAM_VIRTUAL_STACK_ADDRESS_END, PROGRAM_VIRTUAL_STACK_SIZE, process::stack, and process::task.

process_popkey()

char process_popkey

(

struct process *

process

)

References process::keyboard_buffer::buffer, process::keyboard_buffer::head, process::keyboard, and task_current().

process_pushkey()

void process_pushkey	(	struct process *	process,
		char	c
	)

References process::keyboard_buffer::buffer, process::keyboard, and process::keyboard_buffer::tail.

process_switch()

int process_switch

(

struct process *

process

)

References current_process.

process_terminate()

void process_terminate

(

struct process *

process

)

References process::allocations, process::bss, current_process, process::elf, kernel_panic(), kfree(), MAX_PROCESSES, task::process, PROCESS_MAX_ALLOCATIONS, process_switch(), process::stack, process::task, and task_free().

Variable Documentation

current_process

struct process* current_process = 0