/**
* mono_process_get_data:
* @pid: pid of the process
* @data: description of data to return
*
* Return a data item of a process like user time, memory use etc,
* according to the @data argumet.
*/
gint64
mono_process_get_data_with_error (gpointer pid, MonoProcessData data, MonoProcessError *error)
{
gint64 val;
int rpid = GPOINTER_TO_INT (pid);
if (error)
*error = MONO_PROCESS_ERROR_OTHER;
switch (data) {
case MONO_PROCESS_NUM_THREADS:
return get_pid_status_item (rpid, "Threads", error, 1);
case MONO_PROCESS_USER_TIME:
return get_process_stat_time (rpid, 10, FALSE, error);
case MONO_PROCESS_SYSTEM_TIME:
return get_process_stat_time (rpid, 11, FALSE, error);
case MONO_PROCESS_TOTAL_TIME:
return get_process_stat_time (rpid, 10, TRUE, error);
case MONO_PROCESS_WORKING_SET:
return get_pid_status_item (rpid, "VmRSS", error, 1024);
case MONO_PROCESS_WORKING_SET_PEAK:
val = get_pid_status_item (rpid, "VmHWM", error, 1024);
if (val == 0)
val = get_pid_status_item (rpid, "VmRSS", error, 1024);
return val;
case MONO_PROCESS_PRIVATE_BYTES:
return get_pid_status_item (rpid, "VmData", error, 1024);
case MONO_PROCESS_VIRTUAL_BYTES:
return get_pid_status_item (rpid, "VmSize", error, 1024);
case MONO_PROCESS_VIRTUAL_BYTES_PEAK:
val = get_pid_status_item (rpid, "VmPeak", error, 1024);
if (val == 0)
val = get_pid_status_item (rpid, "VmSize", error, 1024);
return val;
case MONO_PROCESS_FAULTS:
return get_process_stat_item (rpid, 6, TRUE, error);
case MONO_PROCESS_ELAPSED:
return get_process_stat_item (rpid, 18, FALSE, error) / get_user_hz ();
case MONO_PROCESS_PPID:
return get_process_stat_time (rpid, 0, FALSE, error);
case MONO_PROCESS_PAGED_BYTES:
return get_pid_status_item (rpid, "VmSwap", error, 1024);
/* Nothing yet */
case MONO_PROCESS_END:
return 0;
}
return 0;
}
static gint64
get_process_stat_time (int pid, int pos, int sum, MonoProcessError *error)
{
gint64 val = get_process_stat_item (pid, pos, sum, error);
#if defined(__APPLE__)
return val;
#else
/* return 100ns ticks */
return (val * 10000000) / get_user_hz ();
#endif
}