process.c File Reference

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

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

Functions
static pid_t	new_process_id (void)
process_t *	process_allocate (process_t *parent, const char *name)
void	process_destroy (process_t *process)
process_t *	process_new (process_t *parent, const char *name, const stdio_t *ios)
process_t *	process_get (pid_t pid)
fd_t	process_attach_ref_fd (process_t *process, io_t *file, fd_flags_t flags)
io_t *	process_get_fd (process_t *process, fd_t fd)
bool	process_detach_fd (process_t *process, fd_t fd)
pid_t	process_wait_for_pid (pid_t pid, u32 *exit_code, u32 flags)
void	process_exit (process_t *process, u8 exit_code, signal_t signal)
void	process_dump_mmaps (const process_t *process)
bool	process_register_signal_handler (process_t *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
hashmap_t	process_table = { 0 }
static const char *	vmap_content_str []
const char *	vmap_type_str []
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 394 of file process.c.

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

new_process_id()

static pid_t new_process_id ( void )

static

Definition at line 49 of file process.c.

Referenced by process_allocate().

process_allocate()

process_t * process_allocate	(	process_t *	parent,
		const char *	name )

Definition at line 55 of file process.c.

Referenced by kthread_init(), process_do_fork(), and process_new().

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process_destroy()

void process_destroy

(

process_t *

process

)

Definition at line 107 of file process.c.

Referenced by process_wait_for_pid().

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process_new()

process_t * process_new	(	process_t *	parent,
		const char *	name,
		const stdio_t *	ios )

Definition at line 143 of file process.c.

Referenced by elf_create_process().

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process_get()

process_t * process_get

(

pid_t

pid

)

Definition at line 162 of file process.c.

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_t *	process,
		io_t *	file,
		fd_flags_t	flags )

Definition at line 171 of file process.c.

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_t *	process,
		fd_t	fd )

Definition at line 192 of file process.c.

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_t *	process,
		fd_t	fd )

Definition at line 200 of file process.c.

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 215 of file process.c.

Referenced by MOS_STATIC_ASSERT().

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process_exit()

void process_exit	(	process_t *	process,
		u8	exit_code,
		signal_t	signal )

Definition at line 281 of file process.c.

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_t *

process

)

Definition at line 365 of file process.c.

Referenced by dump_process(), and invalid_page_fault().

process_register_signal_handler()

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

Definition at line 380 of file process.c.

Referenced by MOS_STATIC_ASSERT().

process_sysfs_process_stat()

static bool process_sysfs_process_stat ( sysfs_file_t * f )

static

Definition at line 396 of file process.c.

process_sysfs_thread_stat()

static bool process_sysfs_thread_stat ( sysfs_file_t * f )

static

Definition at line 410 of file process.c.

process_sysfs_vmap_stat()

static bool process_sysfs_vmap_stat ( sysfs_file_t * f )

static

Definition at line 417 of file process.c.

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SYSFS_AUTOREGISTER()

SYSFS_AUTOREGISTER	(	current	,
		process_sysfs_items	)

Variable Documentation

process_table

hashmap_t process_table = { 0 }

Definition at line 34 of file process.c.

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

vmap_content_str

const char* vmap_content_str[]

static

Initial value:

= {
    [VMAP_UNKNOWN] = "unknown", 
    [VMAP_STACK] = "stack",     
    [VMAP_FILE] = "file",       
    [VMAP_MMAP] = "mmap",       
    [VMAP_DMA] = "DMA",         
}

Definition at line 36 of file process.c.

Referenced by process_dump_mmaps(), and process_sysfs_vmap_stat().

vmap_type_str

const char* vmap_type_str[]

Initial value:

= {
    [VMAP_TYPE_SHARED] = "shared",
    [VMAP_TYPE_PRIVATE] = "private",
}

Definition at line 44 of file process.c.

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

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 447 of file process.c.