process.cpp File Reference

#include "mos/tasks/process.hpp"
#include "mos/filesystem/sysfs/sysfs.hpp"
#include "mos/filesystem/sysfs/sysfs_autoinit.hpp"
#include "mos/io/io.hpp"
#include "mos/mm/mm.hpp"
#include "mos/tasks/signal.hpp"
#include <abi-bits/wait.h>
#include <errno.h>
#include <limits.h>
#include <mos/filesystem/dentry.hpp>
#include <mos/filesystem/fs_types.h>
#include <mos/filesystem/vfs.hpp>
#include <mos/hashmap.hpp>
#include <mos/lib/structures/hashmap.hpp>
#include <mos/lib/structures/hashmap_common.hpp>
#include <mos/lib/structures/list.hpp>
#include <mos/lib/sync/spinlock.hpp>
#include <mos/misc/panic.hpp>
#include <mos/mm/cow.hpp>
#include <mos/mm/paging/paging.hpp>
#include <mos/platform/platform.hpp>
#include <mos/syslog/printk.hpp>
#include <mos/tasks/schedule.hpp>
#include <mos/tasks/task_types.hpp>
#include <mos/tasks/thread.hpp>
#include <mos/tasks/wait.hpp>
#include <mos/type_utils.hpp>
#include <mos_stdio.hpp>
#include <mos_stdlib.hpp>
#include <mos_string.hpp>

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Macros
#define	do_print(fmt, name, item)
#define	stat_line(fmt)

Functions
const char *	get_vmap_content_str (vmap_content_t content)
const char *	get_vmap_type_str (vmap_type_t type)
static pid_t	new_process_id (void)
void	process_destroy (Process *process)
Process *	process_new (Process *parent, mos::string_view name, const stdio_t *ios)
std::optional< Process * >	process_get (pid_t pid)
fd_t	process_attach_ref_fd (Process *process, io_t *file, fd_flags_t flags)
io_t *	process_get_fd (Process *process, fd_t fd)
bool	process_detach_fd (Process *process, fd_t fd)
pid_t	process_wait_for_pid (pid_t pid, u32 *exit_code, u32 flags)
void	process_exit (Process *&&process, u8 exit_code, signal_t signal)
void	process_dump_mmaps (const Process *process)
bool	process_register_signal_handler (Process *process, signal_t sig, const sigaction_t *sigaction)
static bool	process_sysfs_process_stat (sysfs_file_t *f)
static bool	process_sysfs_thread_stat (sysfs_file_t *f)
static bool	process_sysfs_vmap_stat (sysfs_file_t *f)
	SYSFS_AUTOREGISTER (current, process_sysfs_items)

Variables
mos::HashMap< pid_t, Process * >	ProcessTable
static sysfs_item_t	process_sysfs_items []

Macro Definition Documentation

do_print

#define do_print	(		fmt,
			name,
			item )

Value:

sysfs_printf(f, "%-10s: " fmt "\n", name, item);

Definition at line 397 of file process.cpp.

Referenced by process_sysfs_process_stat(), and process_sysfs_thread_stat().

stat_line

#define stat_line

(

fmt

)

Value:

"   %9s: " fmt "\n"

Referenced by process_sysfs_vmap_stat().

Function Documentation

get_vmap_content_str()

const char * get_vmap_content_str

(

vmap_content_t

content

)

Definition at line 38 of file process.cpp.

Referenced by process_dump_mmaps(), and process_sysfs_vmap_stat().

get_vmap_type_str()

const char * get_vmap_type_str

(

vmap_type_t

type

)

Definition at line 51 of file process.cpp.

Referenced by process_do_fork(), process_dump_mmaps(), and process_sysfs_vmap_stat().

new_process_id()

static pid_t new_process_id ( void )

static

Definition at line 61 of file process.cpp.

Referenced by Process::Process().

process_destroy()

void process_destroy

(

Process *

process

)

Definition at line 106 of file process.cpp.

Referenced by process_new(), and process_wait_for_pid().

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process_new()

Process * process_new	(	Process *	parent,
		mos::string_view	name,
		const stdio_t *	ios )

Definition at line 137 of file process.cpp.

Referenced by elf_create_process().

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process_get()

std::optional< Process * > process_get

(

pid_t

pid

)

Definition at line 161 of file process.cpp.

Referenced by mmstat_sysfs_pagetable_show(), mmstat_sysfs_vmaps_show(), MOS_STATIC_ASSERT(), and process_wait_for_pid().

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process_attach_ref_fd()

fd_t process_attach_ref_fd	(	Process *	process,
		io_t *	file,
		fd_flags_t	flags )

Definition at line 172 of file process.cpp.

Referenced by fd_manipulate(), io_dup(), ipc_accept(), ipc_connect(), ipc_create(), memfd_create(), MOS_STATIC_ASSERT(), MOS_STATIC_ASSERT(), process_new(), and vfs_ipc_file_read().

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process_get_fd()

io_t * process_get_fd	(	Process *	process,
		fd_t	fd )

Definition at line 193 of file process.cpp.

Referenced by dentry_from_fd(), io_dup(), io_pread(), io_read(), io_readv(), io_seek(), io_tell(), io_write(), ipc_accept(), mmap_file(), MOS_STATIC_ASSERT(), MOS_STATIC_ASSERT(), and vfs_fstatat().

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process_detach_fd()

bool process_detach_fd	(	Process *	process,
		fd_t	fd )

Definition at line 201 of file process.cpp.

Referenced by io_close(), io_dup2(), and process_do_execveat().

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process_wait_for_pid()

pid_t process_wait_for_pid	(	pid_t	pid,
		u32 *	exit_code,
		u32	flags )

Definition at line 216 of file process.cpp.

Referenced by MOS_STATIC_ASSERT().

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process_exit()

void process_exit	(	Process *&&	process,
		u8	exit_code,
		signal_t	signal )

Definition at line 284 of file process.cpp.

Referenced by elf_create_process(), exit(), process_do_execveat(), signal_do_coredump(), and signal_do_terminate().

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process_dump_mmaps()

void process_dump_mmaps

(

const Process *

process

)

Definition at line 368 of file process.cpp.

Referenced by dump_process(), and invalid_page_fault().

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process_register_signal_handler()

bool process_register_signal_handler	(	Process *	process,
		signal_t	sig,
		const sigaction_t *	sigaction )

Definition at line 383 of file process.cpp.

Referenced by MOS_STATIC_ASSERT().

process_sysfs_process_stat()

static bool process_sysfs_process_stat ( sysfs_file_t * f )

static

Definition at line 399 of file process.cpp.

process_sysfs_thread_stat()

static bool process_sysfs_thread_stat ( sysfs_file_t * f )

static

Definition at line 413 of file process.cpp.

process_sysfs_vmap_stat()

static bool process_sysfs_vmap_stat ( sysfs_file_t * f )

static

Definition at line 420 of file process.cpp.

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SYSFS_AUTOREGISTER()

SYSFS_AUTOREGISTER	(	current	,
		process_sysfs_items	)

Variable Documentation

ProcessTable

mos::HashMap<pid_t, Process *> ProcessTable

Definition at line 36 of file process.cpp.

Referenced by kthread_init(), process_destroy(), process_do_fork(), process_get(), process_new(), and tasks_sysfs_process_list().

process_sysfs_items

sysfs_item_t process_sysfs_items[]

static

Initial value:

= {
    SYSFS_RO_ITEM("process", process_sysfs_process_stat),
    SYSFS_RO_ITEM("thread", process_sysfs_thread_stat),
    SYSFS_RO_ITEM("vmaps", process_sysfs_vmap_stat),
}

Definition at line 450 of file process.cpp.

Referenced by SYSFS_AUTOREGISTER().