#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: man-pages-l10n VERSION\n"
"POT-Creation-Date: 2014-07-17 17:57+0900\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"

#. type: TH
#: man-pages/man7/pthreads.7:26
#, no-wrap
msgid "PTHREADS"
msgstr ""

#. type: TH
#: man-pages/man7/pthreads.7:26
#, no-wrap
msgid "2014-05-21"
msgstr ""

#. type: TH
#: man-pages/man7/pthreads.7:26
#, no-wrap
msgid "Linux"
msgstr ""

#. type: TH
#: man-pages/man7/pthreads.7:26
#, no-wrap
msgid "Linux Programmer's Manual"
msgstr ""

#. type: SH
#: man-pages/man7/pthreads.7:27
#, no-wrap
msgid "NAME"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:29
msgid "pthreads - POSIX threads"
msgstr ""

#. type: SH
#: man-pages/man7/pthreads.7:29
#, no-wrap
msgid "DESCRIPTION"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:36
msgid ""
"POSIX.1 specifies a set of interfaces (functions, header files) for threaded "
"programming commonly known as POSIX threads, or Pthreads.  A single process "
"can contain multiple threads, all of which are executing the same program.  "
"These threads share the same global memory (data and heap segments), but "
"each thread has its own stack (automatic variables)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:39
msgid ""
"POSIX.1 also requires that threads share a range of other attributes (i.e., "
"these attributes are process-wide rather than per-thread):"
msgstr ""

#. type: IP
#: man-pages/man7/pthreads.7:39 man-pages/man7/pthreads.7:41 man-pages/man7/pthreads.7:43 man-pages/man7/pthreads.7:45 man-pages/man7/pthreads.7:47 man-pages/man7/pthreads.7:49 man-pages/man7/pthreads.7:51 man-pages/man7/pthreads.7:54 man-pages/man7/pthreads.7:56 man-pages/man7/pthreads.7:59 man-pages/man7/pthreads.7:65 man-pages/man7/pthreads.7:70 man-pages/man7/pthreads.7:73 man-pages/man7/pthreads.7:76 man-pages/man7/pthreads.7:84 man-pages/man7/pthreads.7:88 man-pages/man7/pthreads.7:91 man-pages/man7/pthreads.7:95 man-pages/man7/pthreads.7:98 man-pages/man7/pthreads.7:103 man-pages/man7/pthreads.7:106 man-pages/man7/pthreads.7:683 man-pages/man7/pthreads.7:690 man-pages/man7/pthreads.7:702 man-pages/man7/pthreads.7:712 man-pages/man7/pthreads.7:716 man-pages/man7/pthreads.7:725 man-pages/man7/pthreads.7:735 man-pages/man7/pthreads.7:742 man-pages/man7/pthreads.7:749 man-pages/man7/pthreads.7:751 man-pages/man7/pthreads.7:754 man-pages/man7/pthreads.7:760 man-pages/man7/pthreads.7:763 man-pages/man7/pthreads.7:765 man-pages/man7/pthreads.7:767 man-pages/man7/pthreads.7:777 man-pages/man7/pthreads.7:797 man-pages/man7/pthreads.7:806 man-pages/man7/pthreads.7:812 man-pages/man7/pthreads.7:814 man-pages/man7/pthreads.7:816 man-pages/man7/pthreads.7:820 man-pages/man7/pthreads.7:825 man-pages/man7/pthreads.7:833
#, no-wrap
msgid "-"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:41
msgid "process ID"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:43
msgid "parent process ID"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:45
msgid "process group ID and session ID"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:47
msgid "controlling terminal"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:49
msgid "user and group IDs"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:51
msgid "open file descriptors"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:54
msgid "record locks (see B<fcntl>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:56
msgid "signal dispositions"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:59
msgid "file mode creation mask (B<umask>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:65
msgid "current directory (B<chdir>(2))  and root directory (B<chroot>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:70
msgid ""
"interval timers (B<setitimer>(2))  and POSIX timers (B<timer_create>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:73
msgid "nice value (B<setpriority>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:76
msgid "resource limits (B<setrlimit>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:81
msgid ""
"measurements of the consumption of CPU time (B<times>(2))  and resources "
"(B<getrusage>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:84
msgid ""
"As well as the stack, POSIX.1 specifies that various other attributes are "
"distinct for each thread, including:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:88
msgid "thread ID (the I<pthread_t> data type)"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:91
msgid "signal mask (B<pthread_sigmask>(3))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:95
msgid "the I<errno> variable"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:98
msgid "alternate signal stack (B<sigaltstack>(2))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:101
msgid "real-time scheduling policy and priority (B<sched>(7))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:103
msgid "The following Linux-specific features are also per-thread:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:106
msgid "capabilities (see B<capabilities>(7))"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:109
msgid "CPU affinity (B<sched_setaffinity>(2))"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:109
#, no-wrap
msgid "Pthreads function return values"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:116
msgid ""
"Most pthreads functions return 0 on success, and an error number of failure. "
" Note that the pthreads functions do not set I<errno>.  For each of the "
"pthreads functions that can return an error, POSIX.1-2001 specifies that the "
"function can never fail with the error B<EINTR>."
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:116
#, no-wrap
msgid "Thread IDs"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:130
msgid ""
"Each of the threads in a process has a unique thread identifier (stored in "
"the type I<pthread_t>).  This identifier is returned to the caller of "
"B<pthread_create>(3), and a thread can obtain its own thread identifier "
"using B<pthread_self>(3).  Thread IDs are guaranteed to be unique only "
"within a process.  A thread ID may be reused after a terminated thread has "
"been joined, or a detached thread has terminated.  In all pthreads functions "
"that accept a thread ID as an argument, that ID by definition refers to a "
"thread in the same process as the caller."
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:130
#, no-wrap
msgid "Thread-safe functions"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:134
msgid ""
"A thread-safe function is one that can be safely (i.e., it will deliver the "
"same results regardless of whether it is)  called from multiple threads at "
"the same time."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:138
msgid ""
"POSIX.1-2001 and POSIX.1-2008 require that all functions specified in the "
"standard shall be thread-safe, except for the following functions:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:232
#, no-wrap
msgid ""
"asctime()\n"
"basename()\n"
"catgets()\n"
"crypt()\n"
"ctermid() if passed a non-NULL argument\n"
"ctime()\n"
"dbm_clearerr()\n"
"dbm_close()\n"
"dbm_delete()\n"
"dbm_error()\n"
"dbm_fetch()\n"
"dbm_firstkey()\n"
"dbm_nextkey()\n"
"dbm_open()\n"
"dbm_store()\n"
"dirname()\n"
"dlerror()\n"
"drand48()\n"
"ecvt() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"encrypt()\n"
"endgrent()\n"
"endpwent()\n"
"endutxent()\n"
"fcvt() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"ftw()\n"
"gcvt() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"getc_unlocked()\n"
"getchar_unlocked()\n"
"getdate()\n"
"getenv()\n"
"getgrent()\n"
"getgrgid()\n"
"getgrnam()\n"
"gethostbyaddr() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"gethostbyname() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"gethostent()\n"
"getlogin()\n"
"getnetbyaddr()\n"
"getnetbyname()\n"
"getnetent()\n"
"getopt()\n"
"getprotobyname()\n"
"getprotobynumber()\n"
"getprotoent()\n"
"getpwent()\n"
"getpwnam()\n"
"getpwuid()\n"
"getservbyname()\n"
"getservbyport()\n"
"getservent()\n"
"getutxent()\n"
"getutxid()\n"
"getutxline()\n"
"gmtime()\n"
"hcreate()\n"
"hdestroy()\n"
"hsearch()\n"
"inet_ntoa()\n"
"l64a()\n"
"lgamma()\n"
"lgammaf()\n"
"lgammal()\n"
"localeconv()\n"
"localtime()\n"
"lrand48()\n"
"mrand48()\n"
"nftw()\n"
"nl_langinfo()\n"
"ptsname()\n"
"putc_unlocked()\n"
"putchar_unlocked()\n"
"putenv()\n"
"pututxline()\n"
"rand()\n"
"readdir()\n"
"setenv()\n"
"setgrent()\n"
"setkey()\n"
"setpwent()\n"
"setutxent()\n"
"strerror()\n"
"strsignal() [Added in POSIX.1-2008]\n"
"strtok()\n"
"system() [Added in POSIX.1-2008]\n"
"tmpnam() if passed a non-NULL argument\n"
"ttyname()\n"
"unsetenv()\n"
"wcrtomb() if its final argument is NULL\n"
"wcsrtombs() if its final argument is NULL\n"
"wcstombs()\n"
"wctomb()\n"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:234
#, no-wrap
msgid "Async-cancel-safe functions"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:238
msgid ""
"An async-cancel-safe function is one that can be safely called in an "
"application where asynchronous cancelability is enabled (see "
"B<pthread_setcancelstate>(3))."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:241
msgid ""
"Only the following functions are required to be async-cancel-safe by POSIX.1-"
"2001 and POSIX.1-2008:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:247
#, no-wrap
msgid "pthread_cancel()\n"
"pthread_setcancelstate()\n"
"pthread_setcanceltype()\n"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:249
#, no-wrap
msgid "Cancellation points"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:256
msgid ""
"POSIX.1 specifies that certain functions must, and certain other functions "
"may, be cancellation points.  If a thread is cancelable, its cancelability "
"type is deferred, and a cancellation request is pending for the thread, then "
"the thread is canceled when it calls a function that is a cancellation point."
""
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:259
msgid ""
"The following functions are required to be cancellation points by POSIX.1-"
"2001 and/or POSIX.1-2008:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:322
#, no-wrap
msgid ""
"accept()\n"
"aio_suspend()\n"
"clock_nanosleep()\n"
"close()\n"
"connect()\n"
"creat()\n"
"fcntl() F_SETLKW\n"
"fdatasync()\n"
"fsync()\n"
"getmsg()\n"
"getpmsg()\n"
"lockf() F_LOCK\n"
"mq_receive()\n"
"mq_send()\n"
"mq_timedreceive()\n"
"mq_timedsend()\n"
"msgrcv()\n"
"msgsnd()\n"
"msync()\n"
"nanosleep()\n"
"open()\n"
"openat() [Added in POSIX.1-2008]\n"
"pause()\n"
"poll()\n"
"pread()\n"
"pselect()\n"
"pthread_cond_timedwait()\n"
"pthread_cond_wait()\n"
"pthread_join()\n"
"pthread_testcancel()\n"
"putmsg()\n"
"putpmsg()\n"
"pwrite()\n"
"read()\n"
"readv()\n"
"recv()\n"
"recvfrom()\n"
"recvmsg()\n"
"select()\n"
"sem_timedwait()\n"
"sem_wait()\n"
"send()\n"
"sendmsg()\n"
"sendto()\n"
"sigpause() [POSIX.1-2001 only (moves to \"may\" list in POSIX.1-2008)]\n"
"sigsuspend()\n"
"sigtimedwait()\n"
"sigwait()\n"
"sigwaitinfo()\n"
"sleep()\n"
"system()\n"
"tcdrain()\n"
"usleep() [POSIX.1-2001 only (function removed in POSIX.1-2008)]\n"
"wait()\n"
"waitid()\n"
"waitpid()\n"
"write()\n"
"writev()\n"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:327
msgid ""
"The following functions may be cancellation points according to POSIX.1-2001 "
"and/or POSIX.1-2008:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:555
#, no-wrap
msgid ""
"access()\n"
"asctime()\n"
"asctime_r()\n"
"catclose()\n"
"catgets()\n"
"catopen()\n"
"chmod() [Added in POSIX.1-2008]\n"
"chown() [Added in POSIX.1-2008]\n"
"closedir()\n"
"closelog()\n"
"ctermid()\n"
"ctime()\n"
"ctime_r()\n"
"dbm_close()\n"
"dbm_delete()\n"
"dbm_fetch()\n"
"dbm_nextkey()\n"
"dbm_open()\n"
"dbm_store()\n"
"dlclose()\n"
"dlopen()\n"
"dprintf() [Added in POSIX.1-2008]\n"
"endgrent()\n"
"endhostent()\n"
"endnetent()\n"
"endprotoent()\n"
"endpwent()\n"
"endservent()\n"
"endutxent()\n"
"faccessat() [Added in POSIX.1-2008]\n"
"fchmod() [Added in POSIX.1-2008]\n"
"fchmodat() [Added in POSIX.1-2008]\n"
"fchown() [Added in POSIX.1-2008]\n"
"fchownat() [Added in POSIX.1-2008]\n"
"fclose()\n"
"fcntl() (for any value of cmd argument)\n"
"fflush()\n"
"fgetc()\n"
"fgetpos()\n"
"fgets()\n"
"fgetwc()\n"
"fgetws()\n"
"fmtmsg()\n"
"fopen()\n"
"fpathconf()\n"
"fprintf()\n"
"fputc()\n"
"fputs()\n"
"fputwc()\n"
"fputws()\n"
"fread()\n"
"freopen()\n"
"fscanf()\n"
"fseek()\n"
"fseeko()\n"
"fsetpos()\n"
"fstat()\n"
"fstatat() [Added in POSIX.1-2008]\n"
"ftell()\n"
"ftello()\n"
"ftw()\n"
"futimens() [Added in POSIX.1-2008]\n"
"fwprintf()\n"
"fwrite()\n"
"fwscanf()\n"
"getaddrinfo()\n"
"getc()\n"
"getc_unlocked()\n"
"getchar()\n"
"getchar_unlocked()\n"
"getcwd()\n"
"getdate()\n"
"getdelim() [Added in POSIX.1-2008]\n"
"getgrent()\n"
"getgrgid()\n"
"getgrgid_r()\n"
"getgrnam()\n"
"getgrnam_r()\n"
"gethostbyaddr() [SUSv3 only (function removed in POSIX.1-2008)]\n"
"gethostbyname() [SUSv3 only (function removed in POSIX.1-2008)]\n"
"gethostent()\n"
"gethostid()\n"
"gethostname()\n"
"getline() [Added in POSIX.1-2008]\n"
"getlogin()\n"
"getlogin_r()\n"
"getnameinfo()\n"
"getnetbyaddr()\n"
"getnetbyname()\n"
"getnetent()\n"
"getopt() (if opterr is nonzero)\n"
"getprotobyname()\n"
"getprotobynumber()\n"
"getprotoent()\n"
"getpwent()\n"
"getpwnam()\n"
"getpwnam_r()\n"
"getpwuid()\n"
"getpwuid_r()\n"
"gets()\n"
"getservbyname()\n"
"getservbyport()\n"
"getservent()\n"
"getutxent()\n"
"getutxid()\n"
"getutxline()\n"
"getwc()\n"
"getwchar()\n"
"getwd() [SUSv3 only (function removed in POSIX.1-2008)]\n"
"glob()\n"
"iconv_close()\n"
"iconv_open()\n"
"ioctl()\n"
"link()\n"
"linkat() [Added in POSIX.1-2008]\n"
"lio_listio() [Added in POSIX.1-2008]\n"
"localtime()\n"
"localtime_r()\n"
"lockf() [Added in POSIX.1-2008]\n"
"lseek()\n"
"lstat()\n"
"mkdir() [Added in POSIX.1-2008]\n"
"mkdirat() [Added in POSIX.1-2008]\n"
"mkdtemp() [Added in POSIX.1-2008]\n"
"mkfifo() [Added in POSIX.1-2008]\n"
"mkfifoat() [Added in POSIX.1-2008]\n"
"mknod() [Added in POSIX.1-2008]\n"
"mknodat() [Added in POSIX.1-2008]\n"
"mkstemp()\n"
"mktime()\n"
"nftw()\n"
"opendir()\n"
"openlog()\n"
"pathconf()\n"
"pclose()\n"
"perror()\n"
"popen()\n"
"posix_fadvise()\n"
"posix_fallocate()\n"
"posix_madvise()\n"
"posix_openpt()\n"
"posix_spawn()\n"
"posix_spawnp()\n"
"posix_trace_clear()\n"
"posix_trace_close()\n"
"posix_trace_create()\n"
"posix_trace_create_withlog()\n"
"posix_trace_eventtypelist_getnext_id()\n"
"posix_trace_eventtypelist_rewind()\n"
"posix_trace_flush()\n"
"posix_trace_get_attr()\n"
"posix_trace_get_filter()\n"
"posix_trace_get_status()\n"
"posix_trace_getnext_event()\n"
"posix_trace_open()\n"
"posix_trace_rewind()\n"
"posix_trace_set_filter()\n"
"posix_trace_shutdown()\n"
"posix_trace_timedgetnext_event()\n"
"posix_typed_mem_open()\n"
"printf()\n"
"psiginfo() [Added in POSIX.1-2008]\n"
"psignal() [Added in POSIX.1-2008]\n"
"pthread_rwlock_rdlock()\n"
"pthread_rwlock_timedrdlock()\n"
"pthread_rwlock_timedwrlock()\n"
"pthread_rwlock_wrlock()\n"
"putc()\n"
"putc_unlocked()\n"
"putchar()\n"
"putchar_unlocked()\n"
"puts()\n"
"pututxline()\n"
"putwc()\n"
"putwchar()\n"
"readdir()\n"
"readdir_r()\n"
"readlink() [Added in POSIX.1-2008]\n"
"readlinkat() [Added in POSIX.1-2008]\n"
"remove()\n"
"rename()\n"
"renameat() [Added in POSIX.1-2008]\n"
"rewind()\n"
"rewinddir()\n"
"scandir() [Added in POSIX.1-2008]\n"
"scanf()\n"
"seekdir()\n"
"semop()\n"
"setgrent()\n"
"sethostent()\n"
"setnetent()\n"
"setprotoent()\n"
"setpwent()\n"
"setservent()\n"
"setutxent()\n"
"sigpause() [Added in POSIX.1-2008]\n"
"stat()\n"
"strerror()\n"
"strerror_r()\n"
"strftime()\n"
"symlink()\n"
"symlinkat() [Added in POSIX.1-2008]\n"
"sync()\n"
"syslog()\n"
"tmpfile()\n"
"tmpnam()\n"
"ttyname()\n"
"ttyname_r()\n"
"tzset()\n"
"ungetc()\n"
"ungetwc()\n"
"unlink()\n"
"unlinkat() [Added in POSIX.1-2008]\n"
"utime() [Added in POSIX.1-2008]\n"
"utimensat() [Added in POSIX.1-2008]\n"
"utimes() [Added in POSIX.1-2008]\n"
"vdprintf() [Added in POSIX.1-2008]\n"
"vfprintf()\n"
"vfwprintf()\n"
"vprintf()\n"
"vwprintf()\n"
"wcsftime()\n"
"wordexp()\n"
"wprintf()\n"
"wscanf()\n"
msgstr ""

#.  So, scanning "cancellation point" comments in the glibc 2.8 header
#.  files, it looks as though at least the following nonstandard
#.  functions are cancellation points:
#.  endnetgrent
#.  endspent
#.  epoll_pwait
#.  epoll_wait
#.  fcloseall
#.  fdopendir
#.  fflush_unlocked
#.  fgetc_unlocked
#.  fgetgrent
#.  fgetgrent_r
#.  fgetpwent
#.  fgetpwent_r
#.  fgets_unlocked
#.  fgetspent
#.  fgetspent_r
#.  fgetwc_unlocked
#.  fgetws_unlocked
#.  fputc_unlocked
#.  fputs_unlocked
#.  fputwc_unlocked
#.  fputws_unlocked
#.  fread_unlocked
#.  fwrite_unlocked
#.  gai_suspend
#.  getaddrinfo_a
#.  getdate_r
#.  getgrent_r
#.  getgrouplist
#.  gethostbyaddr_r
#.  gethostbyname2
#.  gethostbyname2_r
#.  gethostbyname_r
#.  gethostent_r
#.  getnetbyaddr_r
#.  getnetbyname_r
#.  getnetent_r
#.  getnetgrent
#.  getnetgrent_r
#.  getprotobyname_r
#.  getprotobynumber_r
#.  getprotoent_r
#.  getpw
#.  getpwent_r
#.  getservbyname_r
#.  getservbyport_r
#.  getservent_r
#.  getspent
#.  getspent_r
#.  getspnam
#.  getspnam_r
#.  getutmp
#.  getutmpx
#.  getw
#.  getwc_unlocked
#.  getwchar_unlocked
#.  initgroups
#.  innetgr
#.  mkostemp
#.  mkostemp64
#.  mkstemp64
#.  ppoll
#.  pthread_timedjoin_np
#.  putgrent
#.  putpwent
#.  putspent
#.  putw
#.  putwc_unlocked
#.  putwchar_unlocked
#.  rcmd
#.  rcmd_af
#.  rexec
#.  rexec_af
#.  rresvport
#.  rresvport_af
#.  ruserok
#.  ruserok_af
#.  setnetgrent
#.  setspent
#.  sgetspent
#.  sgetspent_r
#.  updwtmpx
#.  utmpxname
#.  vfscanf
#.  vfwscanf
#.  vscanf
#.  vsyslog
#.  vwscanf
#. type: Plain text
#: man-pages/man7/pthreads.7:653
msgid ""
"An implementation may also mark other functions not specified in the "
"standard as cancellation points.  In particular, an implementation is likely "
"to mark any nonstandard function that may block as a cancellation point.  "
"(This includes most functions that can touch files.)"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:653
#, no-wrap
msgid "Compiling on Linux"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:656
msgid ""
"On Linux, programs that use the Pthreads API should be compiled using I<cc -"
"pthread>."
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:656
#, no-wrap
msgid "Linux implementations of POSIX threads"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:659
msgid ""
"Over time, two threading implementations have been provided by the GNU C "
"library on Linux:"
msgstr ""

#. type: TP
#: man-pages/man7/pthreads.7:659
#, no-wrap
msgid "B<LinuxThreads>"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:663
msgid ""
"This is the original Pthreads implementation.  Since glibc 2.4, this "
"implementation is no longer supported."
msgstr ""

#. type: TP
#: man-pages/man7/pthreads.7:663
#, no-wrap
msgid "B<NPTL> (Native POSIX Threads Library)"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:671
msgid ""
"This is the modern Pthreads implementation.  By comparison with "
"LinuxThreads, NPTL provides closer conformance to the requirements of the "
"POSIX.1 specification and better performance when creating large numbers of "
"threads.  NPTL is available since glibc 2.3.2, and requires features that "
"are present in the Linux 2.6 kernel."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:681
msgid ""
"Both of these are so-called 1:1 implementations, meaning that each thread "
"maps to a kernel scheduling entity.  Both threading implementations employ "
"the Linux B<clone>(2)  system call.  In NPTL, thread synchronization "
"primitives (mutexes, thread joining, and so on) are implemented using the "
"Linux B<futex>(2)  system call."
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:681
#, no-wrap
msgid "LinuxThreads"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:683
msgid "The notable features of this implementation are the following:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:690
msgid ""
"In addition to the main (initial) thread, and the threads that the program "
"creates using B<pthread_create>(3), the implementation creates a \"manager\" "
"thread.  This thread handles thread creation and termination.  (Problems can "
"result if this thread is inadvertently killed.)"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:702
msgid ""
"Signals are used internally by the implementation.  On Linux 2.2 and later, "
"the first three real-time signals are used (see also B<signal>(7)).  On "
"older Linux kernels, B<SIGUSR1> and B<SIGUSR2> are used.  Applications must "
"avoid the use of whichever set of signals is employed by the implementation."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:709
msgid ""
"Threads do not share process IDs.  (In effect, LinuxThreads threads are "
"implemented as processes which share more information than usual, but which "
"do not share a common process ID.)  LinuxThreads threads (including the "
"manager thread)  are visible as separate processes using B<ps>(1)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:712
msgid ""
"The LinuxThreads implementation deviates from the POSIX.1 specification in a "
"number of ways, including the following:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:716
msgid "Calls to B<getpid>(2)  return a different value in each thread."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:725
msgid ""
"Calls to B<getppid>(2)  in threads other than the main thread return the "
"process ID of the manager thread; instead B<getppid>(2)  in these threads "
"should return the same value as B<getppid>(2)  in the main thread."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:735
msgid ""
"When one thread creates a new child process using B<fork>(2), any thread "
"should be able to B<wait>(2)  on the child.  However, the implementation "
"only allows the thread that created the child to B<wait>(2)  on it."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:742
msgid ""
"When a thread calls B<execve>(2), all other threads are terminated (as "
"required by POSIX.1).  However, the resulting process has the same PID as "
"the thread that called B<execve>(2): it should have the same PID as the main "
"thread."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:749
msgid ""
"Threads do not share user and group IDs.  This can cause complications with "
"set-user-ID programs and can cause failures in Pthreads functions if an "
"application changes its credentials using B<seteuid>(2)  or similar."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:751
msgid "Threads do not share a common session ID and process group ID."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:754
msgid "Threads do not share record locks created using B<fcntl>(2)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:760
msgid ""
"The information returned by B<times>(2)  and B<getrusage>(2)  is per-thread "
"rather than process-wide."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:763
msgid "Threads do not share semaphore undo values (see B<semop>(2))."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:765
msgid "Threads do not share interval timers."
msgstr ""

#.  FIXME . bug report filed for NPTL nice nonconformance
#.  http://bugzilla.kernel.org/show_bug.cgi?id=6258
#.  Sep 08: there is a patch by Denys Vlasenko to address this
#.  "make setpriority POSIX compliant; introduce PRIO_THREAD extension"
#.  Monitor this to see if it makes it into mainline.
#. type: Plain text
#: man-pages/man7/pthreads.7:767 man-pages/man7/pthreads.7:804
msgid "Threads do not share a common nice value."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:777
msgid ""
"POSIX.1 distinguishes the notions of signals that are directed to the "
"process as a whole and signals that are directed to individual threads.  "
"According to POSIX.1, a process-directed signal (sent using B<kill>(2), for "
"example) should be handled by a single, arbitrarily selected thread within "
"the process.  LinuxThreads does not support the notion of process-directed "
"signals: signals may be sent only to specific threads."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:786
msgid ""
"Threads have distinct alternate signal stack settings.  However, a new "
"thread's alternate signal stack settings are copied from the thread that "
"created it, so that the threads initially share an alternate signal stack.  "
"(A new thread should start with no alternate signal stack defined.  If two "
"threads handle signals on their shared alternate signal stack at the same "
"time, unpredictable program failures are likely to occur.)"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:786
#, no-wrap
msgid "NPTL"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:795
msgid ""
"With NPTL, all of the threads in a process are placed in the same thread "
"group; all members of a thread group share the same PID.  NPTL does not "
"employ a manager thread.  NPTL makes internal use of the first two real-time "
"signals (see also B<signal>(7)); these signals cannot be used in "
"applications."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:797
msgid "NPTL still has at least one nonconformance with POSIX.1:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:806
msgid "Some NPTL nonconformances occur only with older kernels:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:812
msgid ""
"The information returned by B<times>(2)  and B<getrusage>(2)  is per-thread "
"rather than process-wide (fixed in kernel 2.6.9)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:814
msgid "Threads do not share resource limits (fixed in kernel 2.6.10)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:816
msgid "Threads do not share interval timers (fixed in kernel 2.6.12)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:820
msgid ""
"Only the main thread is permitted to start a new session using B<setsid>(2)  "
"(fixed in kernel 2.6.16)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:825
msgid ""
"Only the main thread is permitted to make the process into a process group "
"leader using B<setpgid>(2)  (fixed in kernel 2.6.16)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:831
msgid ""
"Threads have distinct alternate signal stack settings.  However, a new "
"thread's alternate signal stack settings are copied from the thread that "
"created it, so that the threads initially share an alternate signal stack "
"(fixed in kernel 2.6.16)."
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:833
msgid "Note the following further points about the NPTL implementation:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:847
msgid ""
"If the stack size soft resource limit (see the description of "
"B<RLIMIT_STACK> in B<setrlimit>(2))  is set to a value other than "
"I<unlimited>, then this value defines the default stack size for new threads."
"  To be effective, this limit must be set before the program is executed, "
"perhaps using the I<ulimit -s> shell built-in command (I<limit stacksize> in "
"the C shell)."
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:847
#, no-wrap
msgid "Determining the threading implementation"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:852
msgid ""
"Since glibc 2.3.2, the B<getconf>(1)  command can be used to determine the "
"system's threading implementation, for example:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:857
#, no-wrap
msgid "bash$ getconf GNU_LIBPTHREAD_VERSION\n"
"NPTL 2.3.4\n"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:862
msgid ""
"With older glibc versions, a command such as the following should be "
"sufficient to determine the default threading implementation:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:868
#, no-wrap
msgid ""
"bash$ $( ldd /bin/ls | grep libc.so | awk \\(aq{print $3}\\(aq ) | \\e\n"
"                egrep -i \\(aqthreads|nptl\\(aq\n"
"        Native POSIX Threads Library by Ulrich Drepper et al\n"
msgstr ""

#. type: SS
#: man-pages/man7/pthreads.7:870
#, no-wrap
msgid "Selecting the threading implementation: LD_ASSUME_KERNEL"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:885
msgid ""
"On systems with a glibc that supports both LinuxThreads and NPTL (i.e., "
"glibc 2.3.I<x>), the B<LD_ASSUME_KERNEL> environment variable can be used to "
"override the dynamic linker's default choice of threading implementation.  "
"This variable tells the dynamic linker to assume that it is running on top "
"of a particular kernel version.  By specifying a kernel version that does "
"not provide the support required by NPTL, we can force the use of "
"LinuxThreads.  (The most likely reason for doing this is to run a (broken) "
"application that depends on some nonconformant behavior in LinuxThreads.)  "
"For example:"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:891
#, no-wrap
msgid ""
"bash$ $( LD_ASSUME_KERNEL=2.2.5 ldd /bin/ls | grep libc.so | \\e\n"
"                awk \\(aq{print $3}\\(aq ) | egrep -i \\(aqthreads|ntpl\\(aq\n"
"        linuxthreads-0.10 by Xavier Leroy\n"
msgstr ""

#. type: SH
#: man-pages/man7/pthreads.7:893
#, no-wrap
msgid "SEE ALSO"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:903
msgid ""
"B<clone>(2), B<futex>(2), B<gettid>(2), B<proc>(5), B<futex>(7), "
"B<sigevent>(7), B<signal>(7),"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:927
msgid ""
"Various Pthreads manual pages, for example: B<pthread_attr_init>(3), "
"B<pthread_atfork>(3), B<pthread_cancel>(3), B<pthread_cleanup_push>(3), "
"B<pthread_cond_signal>(3), B<pthread_cond_wait>(3), B<pthread_create>(3), "
"B<pthread_detach>(3), B<pthread_equal>(3), B<pthread_exit>(3), "
"B<pthread_key_create>(3), B<pthread_kill>(3), B<pthread_mutex_lock>(3), "
"B<pthread_mutex_unlock>(3), B<pthread_once>(3), "
"B<pthread_setcancelstate>(3), B<pthread_setcanceltype>(3), "
"B<pthread_setspecific>(3), B<pthread_sigmask>(3), B<pthread_sigqueue>(3), "
"and B<pthread_testcancel>(3)"
msgstr ""

#. type: SH
#: man-pages/man7/pthreads.7:927
#, no-wrap
msgid "COLOPHON"
msgstr ""

#. type: Plain text
#: man-pages/man7/pthreads.7:935
msgid ""
"This page is part of release 3.70 of the Linux I<man-pages> project.  A "
"description of the project, information about reporting bugs, and the latest "
"version of this page, can be found at \\%http://www.kernel.org/doc/man-pages/"
"."
msgstr ""