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authorBjörn-Egil Dahlberg <[email protected]>2016-05-13 13:27:18 +0200
committerBjörn-Egil Dahlberg <[email protected]>2016-05-13 13:27:18 +0200
commit9addbee447442a08430557c20d24c961df224926 (patch)
tree7264efe3d313246b035bdd7f8353529382fa0645
parentd9facba40a015ce90cea300e7387cce02c978e47 (diff)
parent72edb4e6d3ae5ea0fb356597a4f446178aee41ab (diff)
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Merge branch 'egil/os_mon/fix-unmatched_return/OTP-13595'
* egil/os_mon/fix-unmatched_return/OTP-13595: os_mon: Fix unmatched return warnings
-rw-r--r--lib/os_mon/src/cpu_sup.erl10
-rw-r--r--lib/os_mon/src/disksup.erl2
-rw-r--r--lib/os_mon/src/memsup.erl56
3 files changed, 34 insertions, 34 deletions
diff --git a/lib/os_mon/src/cpu_sup.erl b/lib/os_mon/src/cpu_sup.erl
index 5664615230..5eb067a5a3 100644
--- a/lib/os_mon/src/cpu_sup.erl
+++ b/lib/os_mon/src/cpu_sup.erl
@@ -531,11 +531,11 @@ measurement_server_loop(State) ->
measurement_server_loop(State)
end;
{Pid, Request} ->
- try get_uint32_measurement(Request, State) of
- Result -> Pid ! {data, Result}
- catch
- Error -> Pid ! {error, Error}
- end,
+ _ = try get_uint32_measurement(Request, State) of
+ Result -> Pid ! {data, Result}
+ catch
+ Error -> Pid ! {error, Error}
+ end,
measurement_server_loop(State);
{'EXIT', OldPid, _n} when State#internal.port == OldPid ->
{ok, NewPid} = port_server_start_link(),
diff --git a/lib/os_mon/src/disksup.erl b/lib/os_mon/src/disksup.erl
index 2b5447cfcb..492e4814da 100644
--- a/lib/os_mon/src/disksup.erl
+++ b/lib/os_mon/src/disksup.erl
@@ -153,7 +153,7 @@ handle_cast(_Msg, State) ->
handle_info(timeout, State) ->
NewDiskData = check_disk_space(State#state.os, State#state.port,
State#state.threshold),
- timer:send_after(State#state.timeout, timeout),
+ {ok, _Tref} = timer:send_after(State#state.timeout, timeout),
{noreply, State#state{diskdata = NewDiskData}};
handle_info({'EXIT', _Port, Reason}, State) ->
{stop, {port_died, Reason}, State#state{port=not_used}};
diff --git a/lib/os_mon/src/memsup.erl b/lib/os_mon/src/memsup.erl
index 833e1ce6d1..d9d3083540 100644
--- a/lib/os_mon/src/memsup.erl
+++ b/lib/os_mon/src/memsup.erl
@@ -408,18 +408,18 @@ handle_info({collected_sys, {Alloc,Total}}, State) ->
%% Last, if this was a periodic check, start a timer for the next
%% one. New timeout = interval-time spent collecting,
- case lists:member(reg, State#state.pending) of
- true ->
- Time = case State2#state.timeout - TimeSpent of
- MS when MS<0 ->
- 0;
- MS ->
- MS
- end,
- erlang:send_after(Time, self(), time_to_collect);
- false ->
- ignore
- end,
+ _ = case lists:member(reg, State#state.pending) of
+ true ->
+ Time = case State2#state.timeout - TimeSpent of
+ MS when MS<0 ->
+ 0;
+ MS ->
+ MS
+ end,
+ erlang:send_after(Time, self(), time_to_collect);
+ false ->
+ ignore
+ end,
{noreply, State2#state{wd_timer=undefined, pending=[]}};
handle_info({'EXIT', Pid, normal}, State) when is_pid(Pid) ->
%% Temporary pid terminating when job is done
@@ -448,17 +448,17 @@ handle_info(reg_collection_timeout, State) ->
%% If it is a periodic check which has timed out, start a timer for
%% the next one
%% New timeout = interval-helper timeout
- case lists:member(reg, State#state.pending) of
- true ->
- Time =
- case State#state.timeout-State#state.helper_timeout of
- MS when MS<0 -> 0;
- MS -> MS
- end,
- erlang:send_after(Time, self(), time_to_collect);
- false ->
- ignore
- end,
+ _ = case lists:member(reg, State#state.pending) of
+ true ->
+ Time =
+ case State#state.timeout-State#state.helper_timeout of
+ MS when MS<0 -> 0;
+ MS -> MS
+ end,
+ erlang:send_after(Time, self(), time_to_collect);
+ false ->
+ ignore
+ end,
{noreply, State#state{wd_timer=undefined, pending=[]}};
handle_info({'EXIT', Pid, cancel}, State) when is_pid(Pid) ->
%% Temporary pid terminating as ordered
@@ -469,7 +469,7 @@ handle_info({collected_ext_sys, SysMemUsage}, State) ->
%% Cancel watchdog timer (and as a security mearure,
%% also flush any ext_collection_timeout message)
- erlang:cancel_timer(State#state.ext_wd_timer),
+ ok = erlang:cancel_timer(State#state.ext_wd_timer, [{async,true}]),
flush(ext_collection_timeout),
%% Send the reply to all waiting clients, preserving time order
@@ -535,7 +535,7 @@ code_change(Vsn, PrevState, "1.8") ->
undefined ->
ignore;
TimerRef1 ->
- erlang:cancel_timer(TimerRef1),
+ ok = erlang:cancel_timer(TimerRef1, [{async,true}]),
SysOnly = PrevState#state.sys_only,
MemUsage = dummy_reply(get_memory_data, SysOnly),
SysMemUsage1 = dummy_reply(get_system_memory_data),
@@ -545,7 +545,7 @@ code_change(Vsn, PrevState, "1.8") ->
undefined ->
ignore;
TimerRef2 ->
- erlang:cancel_timer(TimerRef2),
+ ok = erlang:cancel_timer(TimerRef2, [{async,true}]),
SysMemUsage2 = dummy_reply(get_system_memory_data),
reply(PrevState#state.pending, undef, SysMemUsage2)
end,
@@ -589,7 +589,7 @@ code_change(Vsn, PrevState, "1.8") ->
undefined ->
ignore;
TimerRef1 ->
- erlang:cancel_timer(TimerRef1),
+ ok = erlang:cancel_timer(TimerRef1, [{async,true}]),
MemUsage = dummy_reply(get_memory_data, SysOnly),
Pending2 = lists:map(fun(From) -> {reg,From} end,
Pending),
@@ -599,7 +599,7 @@ code_change(Vsn, PrevState, "1.8") ->
undefined ->
ignore;
TimerRef2 ->
- erlang:cancel_timer(TimerRef2),
+ ok = erlang:cancel_timer(TimerRef2, [{async,true}]),
SysMemUsage = dummy_reply(get_system_memory_data),
ExtPending2 = lists:map(fun(From) -> {ext,From} end,
ExtPending),