libtraceevent-cpus.txt (1729B)
1libtraceevent(3) 2================ 3 4NAME 5---- 6tep_get_cpus, tep_set_cpus - Get / set the number of CPUs, which have a tracing 7buffer representing it. Note, the buffer may be empty. 8 9SYNOPSIS 10-------- 11[verse] 12-- 13*#include <event-parse.h>* 14 15int *tep_get_cpus*(struct tep_handle pass:[*]_tep_); 16void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_); 17-- 18 19DESCRIPTION 20----------- 21The _tep_get_cpus()_ function gets the number of CPUs, which have a tracing 22buffer representing it. The _tep_ argument is trace event parser context. 23 24The _tep_set_cpus()_ function sets the number of CPUs, which have a tracing 25buffer representing it. The _tep_ argument is trace event parser context. 26The _cpu_ argument is the number of CPUs with tracing data. 27 28RETURN VALUE 29------------ 30The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing 31data recorded. 32 33EXAMPLE 34------- 35[source,c] 36-- 37#include <event-parse.h> 38... 39struct tep_handle *tep = tep_alloc(); 40... 41 tep_set_cpus(tep, 5); 42... 43 printf("We have tracing data for %d CPUs", tep_get_cpus(tep)); 44-- 45 46FILES 47----- 48[verse] 49-- 50*event-parse.h* 51 Header file to include in order to have access to the library APIs. 52*-ltraceevent* 53 Linker switch to add when building a program that uses the library. 54-- 55 56SEE ALSO 57-------- 58_libtraceevent(3)_, _trace-cmd(1)_ 59 60AUTHOR 61------ 62[verse] 63-- 64*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*. 65*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page. 66-- 67REPORTING BUGS 68-------------- 69Report bugs to <linux-trace-devel@vger.kernel.org> 70 71LICENSE 72------- 73libtraceevent is Free Software licensed under the GNU LGPL 2.1 74 75RESOURCES 76--------- 77https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git