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Initial support for fork/exit events

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This commit is contained in:
Søren Sandmann Pedersen
2009-09-08 02:26:04 -04:00
parent 6e1e43ff3b
commit e277712037
4 changed files with 161 additions and 7 deletions
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47
collector.c
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@ -44,6 +44,8 @@ typedef struct counter_t counter_t;
typedef struct sample_event_t sample_event_t;
typedef struct mmap_event_t mmap_event_t;
typedef struct comm_event_t comm_event_t;
typedef struct exit_event_t exit_event_t;
typedef struct fork_event_t fork_event_t;
typedef union counter_event_t counter_event_t;
static void process_event (Collector *collector, counter_event_t *event);
@ -89,12 +91,30 @@ struct mmap_event_t
char filename[1];
};
struct fork_event_t
{
struct perf_event_header header;
uint32_t pid, ppid;
uint32_t tid, ptid;
};
struct exit_event_t
{
struct perf_event_header header;
uint32_t pid, ppid;
uint32_t tid, ptid;
};
union counter_event_t
{
struct perf_event_header header;
mmap_event_t mmap;
comm_event_t comm;
sample_event_t sample;
fork_event_t fork;
exit_event_t exit;
};
struct Collector
@ -312,8 +332,13 @@ counter_new (Collector *collector,
attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_CALLCHAIN;
attr.wakeup_events = 100000;
attr.disabled = TRUE;
attr.mmap = TRUE;
attr.comm = TRUE;
if (cpu == 0)
{
attr.mmap = 1;
attr.comm = 1;
attr.task = 1;
}
fd = sysprof_perf_counter_open (&attr, -1, cpu, -1, 0);
@ -429,11 +454,27 @@ process_mmap (Collector *collector, mmap_event_t *mmap)
static void
process_comm (Collector *collector, comm_event_t *comm)
{
g_print ("comm: pid: %d\n", comm->pid);
tracker_add_process (collector->tracker,
comm->pid,
comm->comm);
}
static void
process_fork (Collector *collector, fork_event_t *fork)
{
g_print ("fork: ppid: %d pid: %d\n", fork->ppid, fork->pid);
tracker_add_fork (collector->tracker, fork->ppid, fork->pid);
}
static void
process_exit (Collector *collector, exit_event_t *exit)
{
tracker_add_exit (collector->tracker, exit->pid);
}
static void
process_sample (Collector *collector,
sample_event_t *sample)
@ -473,6 +514,7 @@ process_event (Collector *collector,
break;
case PERF_EVENT_EXIT:
process_exit (collector, &event->exit);
break;
case PERF_EVENT_THROTTLE:
@ -482,6 +524,7 @@ process_event (Collector *collector,
break;
case PERF_EVENT_FORK:
process_fork (collector, &event->fork);
break;
case PERF_EVENT_READ: