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>, author of libtraceevent. Tzvetomir Stoyanov <tz.stoyanov@gmail.com>, author of this man page.
REPORTING BUGS
Report bugs to <linux-trace-devel@vger.kernel.org>
LICENSE
libtraceevent is Free Software licensed under the GNU LGPL 2.1