#include "thread_map.h"
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
+#define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0))
int __perf_evsel__sample_size(u64 sample_type)
{
}
static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
- struct thread_map *threads, bool group)
+ struct thread_map *threads, bool group,
+ struct xyarray *group_fds)
{
int cpu, thread;
unsigned long flags = 0;
- int pid = -1;
+ int pid = -1, err;
if (evsel->fd == NULL &&
perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0)
- return -1;
+ return -ENOMEM;
if (evsel->cgrp) {
flags = PERF_FLAG_PID_CGROUP;
}
for (cpu = 0; cpu < cpus->nr; cpu++) {
- int group_fd = -1;
+ int group_fd = group_fds ? GROUP_FD(group_fds, cpu) : -1;
for (thread = 0; thread < threads->nr; thread++) {
pid,
cpus->map[cpu],
group_fd, flags);
- if (FD(evsel, cpu, thread) < 0)
+ if (FD(evsel, cpu, thread) < 0) {
+ err = -errno;
goto out_close;
+ }
if (group && group_fd == -1)
group_fd = FD(evsel, cpu, thread);
}
thread = threads->nr;
} while (--cpu >= 0);
- return -1;
+ return err;
+}
+
+void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads)
+{
+ if (evsel->fd == NULL)
+ return;
+
+ perf_evsel__close_fd(evsel, ncpus, nthreads);
+ perf_evsel__free_fd(evsel);
+ evsel->fd = NULL;
}
static struct {
};
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
- struct thread_map *threads, bool group)
+ struct thread_map *threads, bool group,
+ struct xyarray *group_fd)
{
if (cpus == NULL) {
/* Work around old compiler warnings about strict aliasing */
if (threads == NULL)
threads = &empty_thread_map.map;
- return __perf_evsel__open(evsel, cpus, threads, group);
+ return __perf_evsel__open(evsel, cpus, threads, group, group_fd);
}
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
- struct cpu_map *cpus, bool group)
+ struct cpu_map *cpus, bool group,
+ struct xyarray *group_fd)
{
- return __perf_evsel__open(evsel, cpus, &empty_thread_map.map, group);
+ return __perf_evsel__open(evsel, cpus, &empty_thread_map.map, group,
+ group_fd);
}
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
- struct thread_map *threads, bool group)
+ struct thread_map *threads, bool group,
+ struct xyarray *group_fd)
{
- return __perf_evsel__open(evsel, &empty_cpu_map.map, threads, group);
+ return __perf_evsel__open(evsel, &empty_cpu_map.map, threads, group,
+ group_fd);
}
static int perf_event__parse_id_sample(const union perf_event *event, u64 type,