POSIX
That is not part of POSIX, those are only present as you listed on linux systems - some other systems have a /proc with different things in it (sometimes stuff that's symbolic links on linux will be hardlinks, textfiles on linux will be binary, or different files with different information) or none at all
POSIX Functions
See Also
The section about Process Control Functions maybe of interest for you.
Table of Contents
- posix_access — Determine accessibility of a file
- posix_ctermid — Get path name of controlling terminal
- posix_get_last_error — Retrieve the error number set by the last posix function that failed
- posix_getcwd — Pathname of current directory
- posix_getegid — Return the effective group ID of the current process
- posix_geteuid — Return the effective user ID of the current process
- posix_getgid — Return the real group ID of the current process
- posix_getgrgid — Return info about a group by group id
- posix_getgrnam — Return info about a group by name
- posix_getgroups — Return the group set of the current process
- posix_getlogin — Return login name
- posix_getpgid — Get process group id for job control
- posix_getpgrp — Return the current process group identifier
- posix_getpid — Return the current process identifier
- posix_getppid — Return the parent process identifier
- posix_getpwnam — Return info about a user by username
- posix_getpwuid — Return info about a user by user id
- posix_getrlimit — Return info about system resource limits
- posix_getsid — Get the current sid of the process
- posix_getuid — Return the real user ID of the current process
- posix_initgroups — Calculate the group access list
- posix_isatty — Determine if a file descriptor is an interactive terminal
- posix_kill — Send a signal to a process
- posix_mkfifo — Create a fifo special file (a named pipe)
- posix_mknod — Create a special or ordinary file (POSIX.1)
- posix_setegid — Set the effective GID of the current process
- posix_seteuid — Set the effective UID of the current process
- posix_setgid — Set the GID of the current process
- posix_setpgid — Set process group id for job control
- posix_setsid — Make the current process a session leader
- posix_setuid — Set the UID of the current process
- posix_strerror — Retrieve the system error message associated with the given errno
- posix_times — Get process times
- posix_ttyname — Determine terminal device name
- posix_uname — Get system name
add a note
User Contributed NotesPOSIX Functions
random832 at fastmail dot fm
13-Jun-2007 12:04
13-Jun-2007 12:04
roberto at spadim dot com dot br
03-Oct-2006 12:36
03-Oct-2006 12:36
don't forget that in posix systems you can use /proc/$process_id/
files:
auxv
cmdline
cwd
environ
exe
fd
maps
mem
mounts
root
stat
statm
status
task
wchan
with it you can make somethings like:
$PPID=getmypid();
$pid=pcntl_fork();
if ($pid==0){
while(1){
if (strpos(file_get_contents("/proc/$PPID/cmdline"),'php')===false) echo "parent pid die";
}
}else{
// forked
}
with this you can use some libs that block signal or some bad signal handling or zombies process or anything you can think :)