| 1 | -module(beam_stats_process). |
| 2 | |
| 3 | -include("include/beam_stats_process.hrl"). |
| 4 | |
| 5 | -export_type( |
| 6 | [ t/0 |
| 7 | , status/0 |
| 8 | ]). |
| 9 | |
| 10 | -export( |
| 11 | [ of_pid/1 |
| 12 | ]). |
| 13 | |
| 14 | -type status() :: |
| 15 | exiting |
| 16 | | garbage_collecting |
| 17 | | runnable |
| 18 | | running |
| 19 | | suspended |
| 20 | | waiting |
| 21 | . |
| 22 | |
| 23 | -define(T, #?MODULE). |
| 24 | |
| 25 | -type t() :: |
| 26 | ?T{}. |
| 27 | |
| 28 | -spec of_pid(pid()) -> |
| 29 | t(). |
| 30 | of_pid(Pid) -> |
| 31 | Dict = pid_info_exn(Pid, dictionary), |
| 32 | ?T |
| 33 | { pid = Pid |
| 34 | , registered_name = pid_info_opt(Pid, registered_name) |
| 35 | , raw_initial_call = pid_info_exn(Pid, initial_call) |
| 36 | , otp_initial_call = hope_kv_list:get(Dict, '$initial_call') |
| 37 | , otp_ancestors = hope_kv_list:get(Dict, '$ancestors') |
| 38 | , status = pid_info_exn(Pid, status) |
| 39 | , memory = pid_info_exn(Pid, memory) |
| 40 | , total_heap_size = pid_info_exn(Pid, total_heap_size) |
| 41 | , stack_size = pid_info_exn(Pid, stack_size) |
| 42 | , message_queue_len = pid_info_exn(Pid, message_queue_len) |
| 43 | }. |
| 44 | |
| 45 | pid_info_exn(Pid, Key) -> |
| 46 | {some, Value} = pid_info_opt(Pid, Key), |
| 47 | Value. |
| 48 | |
| 49 | pid_info_opt(Pid, Key) -> |
| 50 | case {Key, erlang:process_info(Pid, Key)} |
| 51 | of {registered_name, []} -> none |
| 52 | ; {_ , {Key, Value}} -> {some, Value} |
| 53 | end. |