LIBTRACEEVENT(3)             libtraceevent Manual             LIBTRACEEVENT(3)

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

SYNOPSIS
       #include <event-parse.h>

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

DESCRIPTION
       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.

RETURN VALUE
       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.

EXAMPLE
           #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);
           }
           ...

FILES
           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.

SEE ALSO
       libtraceevent(3), trace-cmd(1)

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

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

LICENSE
       libtraceevent is Free Software licensed under the GNU LGPL 2.1

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

NOTES
        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

libtraceevent                     01/13/2024                  LIBTRACEEVENT(3)