task_impl::task_impl( std::uintmax_t stamp, timeval elapsed,
const kinfo_proc &proc, logger_ptr logger )
: m_proc( proc ), m_log( logger ), m_stamp( stamp )
{
assert( m_log.get() != nullptr );
m_pid = m_proc.kp_proc.p_pid;
read_task_info( elapsed, true );
}
/// Iterate all tasks and update/create their information.
/// @return The call returns -1 on error, 0 indicate successful completion.
static int read_tasks_table(void)
{
kern_return_t kr;
processor_set_t pset;
task_array_t tasks;
processor_set_name_array_t psets;
mach_msg_type_number_t i, j, pcnt, tcnt;
kr = host_processor_sets(task_manager_port, &psets, &pcnt);
if (kr != KERN_SUCCESS)
{
syslog(LOG_ERR, "error in host_processor_sets(): %s", mach_error_string(kr));
return -1;
}
for (i = 0; i < pcnt; i++)
{
kr = host_processor_set_priv(task_manager_port, psets[i], &pset);
if (kr != KERN_SUCCESS)
{
syslog(LOG_ERR, "error in host_processor_set_priv(): %s", mach_error_string(kr));
return -1;
}
kr = processor_set_tasks(pset, &tasks, &tcnt);
if (kr != KERN_SUCCESS)
{
syslog(LOG_ERR, "error in processor_set_tasks(): %s", mach_error_string(kr));
return -1;
}
for (j = 0; j < tcnt; j++)
{
read_task_info(tasks[j]);
kr = mach_port_deallocate(mach_task_self(), tasks[j]);
if (kr != KERN_SUCCESS)
{
syslog(LOG_WARNING, "%s, error in mach_port_deallocate(): %s", __FUNCTION__, mach_error_string(kr));
}
}
kr = vm_deallocate(mach_task_self(), (vm_address_t)tasks, tcnt * sizeof(processor_set_t));
kr = mach_port_deallocate(mach_task_self(), pset);
kr = mach_port_deallocate(mach_task_self(), psets[i]);
}
kr = vm_deallocate(mach_task_self(), (vm_address_t)psets, pcnt * sizeof(processor_set_t));
return 0;
}
