tep_read_number_field - Reads a number from raw data.

StevenRostedt <rostedt@goodmis.org[1]>, author of libtraceevent.
           TzvetomirStoyanov <tz.stoyanov@gmail.com[2]>, author of this man page.

       The tep_read_number_field() function reads the value of the field from the raw data and stores it in the
       value. The function sets the value according to the endianness of the raw data and the current machine
       and stores it in value.

           #include <event-parse.h>
           ...
           struct tep_handle *tep = tep_alloc();
           ...
           struct tep_event *event = tep_find_event_by_name(tep, "timer", "hrtimer_start");
           ...
           void process_record(struct tep_record *record)
           {
                   unsigned long long pid;
                   struct tep_format_field *field_pid = tep_find_common_field(event, "common_pid");

                   if (tep_read_number_field(field_pid, record->data, &pid) != 0) {
                           /* Failed to get "common_pid" value */
                   }
           }
           ...

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 is Free Software licensed under the GNU LGPL 2.1

       tep_read_number_field - Reads a number from raw data.

        1. rostedt@goodmis.orgmailto:rostedt@goodmis.org

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

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

libtraceevent 1.8.4                                12/24/2024                                   LIBTRACEEVENT(3)

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

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

       The tep_read_number_field() function retunrs 0 in case of success, or -1 in case of an error.

libtraceevent(3), trace-cmd(1)

#include<event-parse.h>

       int tep_read_number_field(struct tep_format_field *field, const void *data, unsigned long long *value);