tep_strerror - Man Page

#include <event-parse​.h>

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

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​.

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​.

#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);
}
​.​.​.

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​.

libtraceevent(3), trace-cmd(1)

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

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

libtraceevent is Free Software licensed under the GNU LGPL 2​.1

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

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