thread_safety man page on HP-UX

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thread_safety(5)					      thread_safety(5)

       thread_safety  -	 list  of  libc, libpthread and libgen interfaces that
       are: Not Thread-Safe, Cancellation Points, Cancel  Safe,	 Async	Signal
       Safe, or Async Cancel Safe

       Refer to this manpage when writing thread-safe applications using libc,
       libpthread and libgen interfaces.  This manpage gives the list of libc,
       libpthread  and	libgen interfaces that are: Not Thread-Safe, Cancella‐
       tion Points, Cancel Safe, Async Signal Safe, or Async Cancel Safe.

   Interfaces That Are Not Thread-Safe
       All the interfaces are thread-safe except:

       bgets()		    bufsplit()		 copylist()
       dbmclose()	    dbminit()		 delete()
       endmntent()	    fattach()		 fdetach()
       fetch()		    firstkey()		 getc_unlocked()
       getchar_unlocked()   getcontext()	 getopt()
       inet_ntop()	    inet_pton()		 isastream()
       makecontext()	    memcntl()		 nextkey()
       putc_unlocked()	    putchar_unlocked()	 setcontext()
       setmntent()	    store()		 strord()
       strtold()	    system()		 swapcontext()

       NOTE: If an interface has a counterpart, then the interface is  thread-
       safe, and the non-is not thread-safe.

   Cancellation Points
       Cancellation Points can occur when a thread is executing in the follow‐
       ing interfaces:

       _pututline()	    accept()		       aio_suspend()
       bgets()		    bwtmpname()		       catclose()
       catgets()	    catopen()		       close()
       closedir()	    closelog()		       confstr()
       connect()	    copylist()		       creat()
       ctermid()	    cuserid()		       dbm_close()
       dbm_delete()	    dbm_fetch()		       dbm_firstkey()
       dbm_nextkey()	    dbm_open()		       dbm_store()
       devnm()		    dial()		       endbwent()
       endgrent()	    endpwent()		       endusershell()
       endutent()	    endutsent()		       endutxent()
       fclose()		    fcntl()		       fdatasync()
       fdopen()		    fflush()		       fgetc()
       fgetpos()	    fgetpwent()		       fgets()
       fgetwc()		    fgetws()		       flock()
       fopen()		    fprintf()		       fputc()
       fputs()		    fputwc()		       fputws()
       fread()		    freopen()		       fscanf()
       fseek()		    fseeko()		       fsetpos()
       fstatvfsdev()	    fsync()		       ftell()
       ftello()		    ftw()		       fwprintf()
       fwrite()		    fwscanf()		       getbwent()
       getc()		    getc_unlocked()	       getchar()
       getchar_unlocked()   getcwd()		       getdate()
       getgrent()	    getgrgid()		       getgrgid_r()
       getgrnam()	    getgrnam_r()	       getlogin()
       getlogin_r()	    getmsg()		       getpmsg()
       getpwent()	    getpwnam()		       getpwnam_r()
       getpwuid()	    getpwuid_r()	       gets()

       gettxt()		    getusershell()	       getutent()
       getutid()	    getutline()		       getutxent()
       getutsent()	    getutsid()		       getutsline()
       getutspid()	    getutxid()		       getutxline()
       getw()		    getwc()		       getwchar()
       getwd()		    glob()		       globfree()
       iconv()		    iconv_close()	       iconv_open()
       initgroups()	    insque()		       ioctl()
       isastream()	    lckpwdf()		       lockf()
       lockf64()	    lseek()		       lseek64()
       mkstemp()	    msgrcv()		       msgsnd()
       msync()		    nanosleep()		       nftw()
       nftw2()		    open()		       opendir()
       openlog()	    pause()		       pclose()
       perror()		    pfmt()		       poll()
       popen()		    pread()		       printf()
       pselect()	    pthread_cond_timedwait()   pthread_cond_wait()
       pthread_join()	    pthread_testcancel()       putc()
       putc_unlocked()	    putchar()		       putchar_unlocked()
       putmsg()		    putpmsg()		       putpwent()
       puts()		    pututline()		       pututsline()
       pututxline()	    putw()		       putwc()
       putwchar()	    putws()		       pwrite()
       read()		    readdir()		       readdir_r()
       readv()		    recv()		       recvfrom()
       recvmsg()	    remove()		       remque()
       rename()		    rewind()		       rewinddir()
       scandir()	    scanf()		       seekdir()
       select()		    semop()		       send()
       sendmsg()	    sendto()		       sendfile()
       setbwent()	    setgrent()		       setpwent()
       setusershell()	    setutent()		       setutsent()
       setutxent()	    sigpause()		       sigsuspend()
       sigtimedwait()	    sigwait()		       sigwaitinfo()
       sleep()		    socket()		       socketpair()
       statvfsdev()	    strerror()		       syslog()
       system()		    t_accept()		       t_alloc()
       t_bind()		    t_close()		       t_connect()
       t_error()	    t_getinfo()		       t_getprotaddr()
       t_getstate()	    t_listen()		       t_look()
       t_open()		    t_optmgmt()		       t_rcv()
       t_rcvconnect()	    t_rcvdis()		       t_rcvrel()
       t_rcvudata()	    t_rcvuderr()	       t_snd()
       t_snddis()	    t_sndrel()		       t_sndudata()
       t_strerror()	    t_sync()		       t_unbind()
       tcdrain()	    tmpfile()		       tmpnam()
       ttyname()	    ttyname_r()		       ttyslot()
       ulckpwdf()	    undial()		       ungetc()
       ungetwc()	    unlink()		       updatebwdb()
       usleep()		    utmpname()		       vfprintf()
       vfscanf()	    vfwprintf()		       vpfmt()
       vprintf()	    vscanf()		       vwprintf()
       wait()		    wait3()		       waitid()
       waitpid()	    wordexp()		       wordfree()
       wprintf()	    write()		       writev()

       NOTE: A cancellation point WILL NOT occur when a thread is executing in
       in a UNIX 2003 conformant application.

   Cancel Safe
       All the following interfaces are Cancel Safe:

       accept()		    bind()	     connect()	       dn_comp()
       dn_expand()	    endhostent()     endnetent()       endprotoent()

       endservent()	    get_resfield()   gethostbyaddr()   gethostbyname()
       gethostent()	    getmsg()	     getnetbyaddr()    getnetbyname()
       getnetent()	    getpeername()    getpmsg()	       getprotobyname()
       getprotobynumber()   getprotoent()    getservbyname()   getservbyport()
       getservent()	    getsockname()    getsockopt()      herror()
       inet_addr()	    inet_lnaof()     inet_makeaddr()   inet_netof()
       inet_network()	    inet_ntoa()	     isastream()       listen()
       msync()		    net_aton()	     net_ntoa()	       poll()
       putmsg()		    putpmsg()	     rcmd()	       recv()
       recvfrom()	    recvmsg()	     res_init()	       res_mkquery()
       res_query()	    res_search()     res_send()	       rexec()
       rresvport()	    ruserok()	     sbrk()	       send()
       sendfile()	    sendmsg()	     sendto()	       set_resfield()
       sethostent()	    setnetent()	     setprotoent()     setservent()
       setsockopt()	    shutdown()	     socket()	       socketpair()

   Async Signal Safe
       All the following interfaces are Async Signal Safe:

       _exit()	       accept()	       access()	       alarm()
       bind()	       cfgetispeed()   cfgetospeed()   cfsetispeed()
       cfsetospeed()   chdir()	       chmod()	       chown()
       close()	       connect()       creat()	       dup()
       dup2()	       execle()	       execve()	       fcntl()
       flock()	       fpathconf()     fstat()	       getegid()
       geteuid()       getgid()	       getgroups()     getmsg()
       getpeername()   getpgrp()       getpid()	       getpmsg()
       getppid()       getsockname()   getsockopt()    getuid()
       isastream()     kill()	       link()	       listen()
       lseek()	       memset()	       mkdir()	       mkfifo()
       msync()	       net_aton()      net_ntoa()      open()
       pathconf()      pause()	       pipe()	       poll()
       putmsg()	       putpmsg()       raise()	       read()
       recv()	       recvfrom()      recvmsg()       rename()
       rmdir()	       send()	       sendfile()      sendmsg()
       sendto()	       setgid()	       setpgid()       setsid()
       setsockopt()    setuid()	       shutdown()      sigaction()
       sigaddset()     sigdelset()     sigemptyset()   sigfillset()
       sigismember()   signal()	       sigpending()    sigprocmask()
       sigqueue()      sigsuspend()    sleep()	       socket()
       socketpair()    stat()	       sysconf()       tcdrain()
       tcflow()	       tcflush()       tcgetattr()     tcgetpgrp()
       tcsendbreak()   tcsetattr()     tcsetpgrp()     time()
       times()	       umask()	       uname()	       unlink()
       utime()	       wait()	       waitpid()       write()

       NOTE: is not Async Signal Safe in a UNIX 2003 conformant application.

   Async Cancel Safe
       All the following interfaces are Async Cancel Safe:

       a64l()		  abs()			     accept()
       addmntent()	  atof()		     atoi()
       atol()		  bcmp()		     bcopy()
       bind()		  bsearch()		     bzero()
       cfgetispeed()	  cfgetospeed()		     cfsetispeed()
       cfsetospeed()	  connect()		     div()
       execv()		  execve()		     ffs()
       fnmatch()	  fsetaclentry()	     ftok()
       getclock()	  getmsg()		     getpeername()
       getpmsg()	  getrlimit()		     getsockname()
       getsockopt()	  getsubopt()		     index()
       insque()		  isalnum()		     isalpha()
       isascii()	  isastream()		     iscntrl()
       isdigit()	  isgraph()		     islower()

       isprint()	  ispunct()		     isspace()
       isupper()	  iswalnum()		     iswalpha()
       iswcntrl()	  iswctype()		     iswdigit()
       iswgraph()	  iswlower()		     iswprint()
       iswpunct()	  iswspace()		     iswupper()
       iswxdigit()	  isxdigit()		     l3tol()
       labs()		  ldiv()		     lfind()
       listen()		  lsearch()		     ltol3()
       mblen()		  mbstowcs()		     mbtowc()
       memccpy()	  memchr()		     memcmp()
       memcpy()		  memmove()		     memset()
       mkfifo()		  mktemp()		     msem_init()
       msem_lock()	  msgrcv()		     msgsnd()
       msync()		  nanosleep()		     net_aton()
       net_ntoa()	  pathfind()		     pause()
       poll()		  pstat()		     pstat_getlwp()
       pthread_cancel()	  pthread_setcancelstate()   pthread_setcanceltype()
       putmsg()		  putpmsg()		     recv()
       recvfrom()	  recvmsg()		     remque()
       rindex()		  rmdirp()		     sbrk()
       semop()		  send()		     sendfile()
       sendmsg()	  sendto()		     setaclentry()
       setcat()		  setclock()		     setrlimit()
       setsockopt()	  shutdown()		     sigsuspend()
       socket()		  socketpair()		     strcasecmp()
       strcat()		  strchr()		     strcmp()
       strcoll()	  strcpy()		     strcspn()
       strdup()		  strlen()		     strncasecmp()
       strncat()	  strncmp()		     strncpy()
       strord()		  strpbrk()		     strrchr()
       strrstr()	  strspn()		     strstr()
       strtod()		  strtok_r()		     strtol()
       strtold()	  strtoul()		     strxfrm()
       swab()		  tcdrain()		     tcflow()
       tcflush()	  tcgetattr()		     tcgetpgrp()
       tcgetsid()	  tcsendbreak()		     tcsetattr()
       tcsetpgrp()	  toascii()		     tolower()
       toupper()	  towlower()		     towupper()
       ulimit()		  wait()		     wait3()
       waitid()		  wcscat()		     wcschr()
       wcscmp()		  wcscpy()		     wcscspn()
       wcslen()		  wcsncat()		     wcsncmp()
       wcsncpy()	  wcspbrk()		     wcsrchr()
       wcsspn()		  wcsstr()		     wcstod()
       wcstok()		  wcstol()		     wcstombs()
       wcstoul()	  wcswcs()		     wctomb()

       intro(3C), pthread(3T), signal(5).

       Refer to the threads white papers at the and web sites.


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