NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | FILES | SEE ALSO | AUTHOR | REPORTING BUGS | LICENSE | RESOURCES | NOTES | COLOPHON |
|
|
LIBTRACEEVENT(3) libtraceevent Manual LIBTRACEEVENT(3)
tep_read_number - Reads a number from raw data.
#include <event-parse.h> unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size);
The tep_read_number() function reads an integer from raw data, taking into account the endianness of the raw data and the current host. The tep argument is the trace event parser context. The ptr is a pointer to the raw data, where the integer is, and the size is the size of the integer.
The tep_read_number() function returns the integer in the byte order of the current host. In case of an error, 0 is returned.
#include <event-parse.h> ... struct tep_handle *tep = tep_alloc(); ... void process_record(struct tep_record *record) { int offset = 24; int data = tep_read_number(tep, record->data + offset, 4); /* Read the 4 bytes at the offset 24 of data as an integer */ } ...
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 <[email protected][1]>, author of libtraceevent. Tzvetomir Stoyanov <[email protected][2]>, author of this man page.
Report bugs to <[email protected][3]>
libtraceevent is Free Software licensed under the GNU LGPL 2.1
https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/
1. [email protected] mailto:[email protected] 2. [email protected] mailto:[email protected] 3. [email protected] mailto:[email protected]
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 [email protected]
libtraceevent 1.7.3 09/24/2023 LIBTRACEEVENT(3)