proc.h File Reference

#include <stdatomic.h>
#include <stdint.h>
#include <stdio.h>
#include "_libstd/ERR.h"
#include "_libstd/NULL.h"
#include "_libstd/PAGE_SIZE.h"
#include "_libstd/clock_t.h"
#include "_libstd/config.h"
#include "_libstd/fd_t.h"
#include "_libstd/pid_t.h"
#include "_libstd/tid_t.h"

Include dependency graph for proc.h:

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Data Structures
struct	sync_t
	Synchronization object. More...

Macros
#define	PRIORITY_MAX   63
	The maximum priority value, inclusive.
#define	PRIORITY_MAX_USER   31
	The maximum priority user space is allowed to specify, inclusive.
#define	PRIORITY_MIN   0
	The minimum priority value.
#define	BYTES_TO_PAGES(amount)   (((amount) + PAGE_SIZE - 1) / PAGE_SIZE)
	Convert a size in bytes to pages.
#define	PAGE_SIZE_OF(object)   BYTES_TO_PAGES(sizeof(object))
	Size of an object in pages.
#define	FUTEX_ALL   UINT64_MAX
	Futex wake all constant.

Typedefs
typedef uint8_t	priority_t
	Priority type.
typedef void(*	note_func_t) (char *note)
	Note handler function type.
typedef uint64_t(*	atnotify_func_t) (char *note)
	User space atnotify() handler function type.

Enumerations
enum	spawn_flags_t {   SPAWN_DEFAULT = 0 , SPAWN_SUSPEND = 1 << 0 , SPAWN_EMPTY_FDS = 1 << 1 , SPAWN_STDIO_FDS = 1 << 2 ,   SPAWN_EMPTY_ENV = 1 << 3 , SPAWN_EMPTY_CWD = 1 << 4 , SPAWN_EMPTY_GROUP = 1 << 5 , SPAWN_COPY_NS = 1 << 6 ,   SPAWN_EMPTY_NS , SPAWN_EMPTY_ALL }
	Spawn behaviour flags. More...
enum	prot_t { PROT_NONE = 0 , PROT_READ = (1 << 0) , PROT_WRITE = (1 << 1) , PROT_EXECUTE = (1 << 2) }
	Memory protection flags. More...
enum	futex_op_t { FUTEX_WAIT , FUTEX_WAKE }
	Futex operation enum. More...
enum	atnotify_t { ATNOTIFY_ADD = 0 , ATNOTIFY_REMOVE = 1 }
	Action type for atnotify(). More...
enum	arch_prctl_t { ARCH_GET_FS = 0 , ARCH_SET_FS = 1 }
	Architecture specific thread data codes. More...

Functions
pid_t	spawn (const char **argv, spawn_flags_t flags)
	System call for spawning new processes.
pid_t	getpid (void)
	System call to retrieve the current pid.
tid_t	gettid (void)
	System call to retrieve the current tid.
void *	mmap (fd_t fd, void *address, size_t length, prot_t prot)
	System call to map memory from a file.
void *	munmap (void *address, size_t length)
	System call to unmap mapped memory.
void *	mprotect (void *address, size_t length, prot_t prot)
	System call to change the protection flags of memory.
uint64_t	futex (atomic_uint64_t *addr, uint64_t val, futex_op_t op, clock_t timeout)
	System call for fast user space mutual exclusion.
clock_t	uptime (void)
	System call for retreving the time since boot.
uint64_t	nanosleep (clock_t timeout)
	System call for sleeping.
uint64_t	notify (note_func_t handler)
	System call that sets the handler to be called when a note is received.
_NORETURN void	noted (void)
	System call that notifies the kernel that the current note has been handled.
int64_t	wordcmp (const char *string, const char *word)
	Helper for comparing the first word of a string.
uint64_t	atnotify (atnotify_func_t handler, atnotify_t action)
	Adds or removes a handler to be called in user space when a note is received.
_NORETURN void	exits (const char *status)
	System call that handles pending notes for the current thread.
uint64_t	kill (pid_t pid)
	Helper for sending the "kill" command to a process.
uint64_t	arch_prctl (arch_prctl_t op, uintptr_t addr)
	System call for setting architecture specific thread data.