tep_strerror(3) — Справочная страница Linux

LIBTRACEEVENT(3)          libtraceevent Manual          LIBTRACEEVENT(3)

ИМЯ

       tep_strerror - Returns a string describing regular errno and tep
       error number.

СИНТАКСИС

       #include <event-parse.h>

       int tep_strerror(struct tep_handle *tep, enum tep_errno errnum, char *buf, size_t buflen);

ОПИСАНИЕ

       The tep_strerror() function converts tep error number into a
       human readable string. The tep argument is trace event parser
       context. The errnum is a regular errno, defined in errno.h, or a
       tep error number. The string, describing this error number is
       copied in the buf argument. The buflen argument is the size of
       the buf.

       It as a thread safe wrapper around strerror_r(). The library
       function has two different behaviors - POSIX and GNU specific.
       The tep_strerror() API always behaves as the POSIX version - the
       error string is copied in the user supplied buffer.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       The tep_strerror() function returns 0, if a valid errnum is
       passed and the string is copied into buf. If errnum is not a
       valid error number, -1 is returned and buf is not modified.

ПРИМЕР

           #include <event-parse.h>
           ...
           struct tep_handle *tep = tep_alloc();
           ...
           char buf[32];
           char *pool = calloc(1, 128);
           if (tep == NULL) {
                   tep_strerror(tep, TEP_ERRNO__MEM_ALLOC_FAILED, buf, 32);
                   printf ("The pool is not initialized, %s", buf);
           }
           ...

ФАЙЛЫ

           event-parse.h
                   Header file to include in order to have access to the library APIs.
           -ltraceevent
                   Linker switch to add when building a program that uses the library.

СМОТРИТЕ ТАКЖЕ

       libtraceevent(3), trace-cmd(1)

АВТОР

           Steven Rostedt <rostedt@goodmis.org[1]>, author of libtraceevent.
           Tzvetomir Stoyanov <tz.stoyanov@gmail.com[2]>, author of this man page.

СООБЩЕНИЕ ОБ ОШИБКАХ

       Report bugs to <linux-trace-devel@vger.kernel.org[3]>

ЛИЦЕНЗИЯ

       libtraceevent is Free Software licensed under the GNU LGPL 2.1

РЕСУРСЫ

       https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ 

ПРИМЕЧАНИЯ

        1. rostedt@goodmis.org
           mailto:rostedt@goodmis.org

        2. tz.stoyanov@gmail.com
           mailto:tz.stoyanov@gmail.com

        3. linux-trace-devel@vger.kernel.org
           mailto:linux-trace-devel@vger.kernel.org

КОЛОФОН

       This page is part of the libtraceevent (Linux kernel trace event
       library) project.  Information about the project can be found at
       ⟨https://www.trace-cmd.org/⟩.  If you have a bug report for this
       manual page, see ⟨https://www.trace-cmd.org/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git⟩
       on 2024-06-14.  (At that time, the date of the most recent commit
       that was found in the repository was 2024-05-17.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

libtraceevent 1.7.3            09/24/2023               LIBTRACEEVENT(3)