process.c File Reference

#include <errno.h>
#include <kernel/sched/process.h>
#include <kernel/cpu/cpu.h>
#include <kernel/cpu/gdt.h>
#include <kernel/fs/file.h>
#include <kernel/fs/path.h>
#include <kernel/fs/sysfs.h>
#include <kernel/fs/vfs.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/vmm.h>
#include <kernel/sched/sys_time.h>
#include <kernel/sched/thread.h>
#include <kernel/sched/timer.h>
#include <kernel/sched/wait.h>
#include <kernel/sync/lock.h>
#include <kernel/sync/rwlock.h>
#include <kernel/fs/ctl.h>
#include <assert.h>
#include <stdatomic.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/io.h>
#include <sys/list.h>
#include <sys/math.h>
#include <sys/proc.h>

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Functions
static	_Atomic (pid_t)
static uint64_t	process_prio_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_prio_write (file_t *file, const void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_cwd_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_cwd_write (file_t *file, const void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_cmdline_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_note_write (file_t *file, const void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_wait_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static wait_queue_t *	process_wait_poll (file_t *file, poll_events_t *revents)
static uint64_t	process_stat_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_ctl_close (file_t *file, uint64_t argc, const char **argv)
static uint64_t	process_ctl_dup2 (file_t *file, uint64_t argc, const char **argv)
static uint64_t	process_ctl_start (file_t *file, uint64_t argc, const char **argv)
static uint64_t	process_ctl_kill (file_t *file, uint64_t argc, const char **argv)
	CTL_STANDARD_OPS_DEFINE (ctlOps, { {"close", process_ctl_close, 2, 3}, {"dup2", process_ctl_dup2, 3, 3}, {"start", process_ctl_start, 1, 1}, {"kill", process_ctl_kill, 1, 1}, {0} })
static uint64_t	process_env_write (file_t *file, const void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	process_env_create (inode_t *dir, dentry_t *target, mode_t mode)
static uint64_t	process_env_remove (inode_t *parent, dentry_t *target, mode_t mode)
static void	process_env_cleanup (inode_t *inode)
static void	process_cleanup (inode_t *inode)
static void	process_free (process_t *process)
static uint64_t	process_dir_init (process_t *process)
process_t *	process_new (priority_t priority)
	Allocates and initializes a new process.
void	process_kill (process_t *process, int32_t status)
	Kills a process.
uint64_t	process_copy_env (process_t *dest, process_t *src)
	Copies the environment variables from one process to another.
uint64_t	process_set_cmdline (process_t *process, char **argv, uint64_t argc)
	Sets the command line arguments for a process.
bool	process_has_thread (process_t *process, tid_t tid)
	Checks if a process has a thread with the specified thread ID.
process_t *	process_get_kernel (void)
	Gets the kernel process.
void	process_procfs_init (void)
	Initializes the /proc directory.
static void	process_reaper (void *arg)
void	process_reaper_init (void)
	Initializes the process reaper.
	SYSCALL_DEFINE (SYS_GETPID, pid_t)

Variables
static process_t *	kernelProcess = NULL
static file_ops_t	prioOps
static file_ops_t	cwdOps
static file_ops_t	cmdlineOps
static file_ops_t	noteOps
static file_ops_t	waitOps
static file_ops_t	statOps
static file_ops_t	envFileOps
static inode_ops_t	envInodeOps
static inode_ops_t	inodeOps

Function Documentation

_Atomic()

static _Atomic ( pid_t  )

staticnew

Definition at line 33 of file process.c.

process_prio_read()

static uint64_t process_prio_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 61 of file process.c.

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process_prio_write()

static uint64_t process_prio_write ( file_t *  file, const void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 76 of file process.c.

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process_cwd_read()

static uint64_t process_cwd_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 117 of file process.c.

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process_cwd_write()

static uint64_t process_cwd_write ( file_t *  file, const void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 138 of file process.c.

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process_cmdline_read()

static uint64_t process_cmdline_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 187 of file process.c.

process_note_write()

static uint64_t process_note_write ( file_t *  file, const void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 207 of file process.c.

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process_wait_read()

static uint64_t process_wait_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 243 of file process.c.

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process_wait_poll()

static wait_queue_t * process_wait_poll ( file_t *  file, poll_events_t *  revents  )

static

Definition at line 263 of file process.c.

process_stat_read()

static uint64_t process_stat_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 285 of file process.c.

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process_ctl_close()

static uint64_t process_ctl_close ( file_t *  file, uint64_t  argc, const char **  argv  )

static

Definition at line 320 of file process.c.

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process_ctl_dup2()

static uint64_t process_ctl_dup2 ( file_t *  file, uint64_t  argc, const char **  argv  )

static

Definition at line 373 of file process.c.

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process_ctl_start()

static uint64_t process_ctl_start ( file_t *  file, uint64_t  argc, const char **  argv  )

static

Definition at line 409 of file process.c.

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process_ctl_kill()

static uint64_t process_ctl_kill ( file_t *  file, uint64_t  argc, const char **  argv  )

static

Definition at line 431 of file process.c.

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CTL_STANDARD_OPS_DEFINE()

CTL_STANDARD_OPS_DEFINE	(	ctlOps	,
		{ {"close", process_ctl_close, 2, 3}, {"dup2", process_ctl_dup2, 3, 3}, {"start", process_ctl_start, 1, 1}, {"kill", process_ctl_kill, 1, 1}, {0} }
	)

Definition at line 452 of file process.c.

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process_env_write()

static uint64_t process_env_write ( file_t *  file, const void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 472 of file process.c.

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process_env_create()

static uint64_t process_env_create ( inode_t *  dir, dentry_t *  target, mode_t  mode  )

static

Definition at line 508 of file process.c.

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process_env_remove()

static uint64_t process_env_remove ( inode_t *  parent, dentry_t *  target, mode_t  mode  )

static

Definition at line 541 of file process.c.

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process_env_cleanup()

static void process_env_cleanup ( inode_t *  inode )

static

Definition at line 562 of file process.c.

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process_cleanup()

static void process_cleanup ( inode_t *  inode )

static

Definition at line 572 of file process.c.

process_free()

static void process_free ( process_t *  process )

static

Definition at line 582 of file process.c.

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process_dir_init()

static uint64_t process_dir_init ( process_t *  process )

static

Definition at line 615 of file process.c.

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process_reaper()

static void process_reaper ( void *  arg )

static

Definition at line 982 of file process.c.

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SYSCALL_DEFINE()

SYSCALL_DEFINE	(	SYS_GETPID	,
		pid_t
	)

Definition at line 1040 of file process.c.

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Variable Documentation

kernelProcess

process_t* kernelProcess = NULL

static

Definition at line 31 of file process.c.

prioOps

file_ops_t prioOps

static

Initial value:

= {
    .read = process_prio_read,
    .write = process_prio_write,
}

Definition at line 112 of file process.c.

cwdOps

file_ops_t cwdOps

static

Initial value:

= {
    .read = process_cwd_read,
    .write = process_cwd_write,
}

Definition at line 182 of file process.c.

cmdlineOps

file_ops_t cmdlineOps

static

Initial value:

= {
    .read = process_cmdline_read,
}

Definition at line 203 of file process.c.

noteOps

file_ops_t noteOps

static

Initial value:

= {
    .write = process_note_write,
}

Definition at line 239 of file process.c.

waitOps

file_ops_t waitOps

static

Initial value:

= {
    .read = process_wait_read,
    .poll = process_wait_poll,
}

Definition at line 280 of file process.c.

statOps

file_ops_t statOps

static

Initial value:

= {
    .read = process_stat_read,
}

Definition at line 316 of file process.c.

envFileOps

file_ops_t envFileOps

static

Initial value:

= {
    .read = process_env_read,
    .write = process_env_write,
    .seek = file_generic_seek,
}

Definition at line 492 of file process.c.

envInodeOps

inode_ops_t envInodeOps

static

Initial value:

= {
    .create = process_env_create,
    .remove = process_env_remove,
    .cleanup = process_env_cleanup,
}

Definition at line 502 of file process.c.

inodeOps

inode_ops_t inodeOps

static

Initial value:

= {
    .cleanup = process_cleanup,
}

Definition at line 578 of file process.c.