# Module gproc_lib #
* [Description](#description)
* [Function Index](#index)
* [Function Details](#functions)
Extended process registry.
__Authors:__ Ulf Wiger ([`ulf@wiger.net`](mailto:ulf@wiger.net)).
<a name="description"></a>
## Description ##
This module implements an extended process registry
For a detailed description, see gproc/doc/erlang07-wiger.pdf.
<a name="index"></a>
## Function Index ##
<table width="100%" border="1" cellspacing="0" cellpadding="2" summary="function index"><tr><td valign="top"><a href="#add_monitor-4">add_monitor/4</a></td><td></td></tr><tr><td valign="top"><a href="#await-3">await/3</a></td><td></td></tr><tr><td valign="top"><a href="#dbg-1">dbg/1</a></td><td></td></tr><tr><td valign="top"><a href="#decrement_resource_count-2">decrement_resource_count/2</a></td><td></td></tr><tr><td valign="top"><a href="#do_set_counter_value-3">do_set_counter_value/3</a></td><td></td></tr><tr><td valign="top"><a href="#do_set_value-3">do_set_value/3</a></td><td></td></tr><tr><td valign="top"><a href="#ensure_monitor-2">ensure_monitor/2</a></td><td></td></tr><tr><td valign="top"><a href="#followers-1">followers/1</a></td><td></td></tr><tr><td valign="top"><a href="#insert_attr-4">insert_attr/4</a></td><td></td></tr><tr><td valign="top"><a href="#insert_many-4">insert_many/4</a></td><td></td></tr><tr><td valign="top"><a href="#insert_reg-4">insert_reg/4</a></td><td></td></tr><tr><td valign="top"><a href="#insert_reg-5">insert_reg/5</a></td><td></td></tr><tr><td valign="top"><a href="#monitors-1">monitors/1</a></td><td></td></tr><tr><td valign="top"><a href="#notify-2">notify/2</a></td><td></td></tr><tr><td valign="top"><a href="#notify-3">notify/3</a></td><td></td></tr><tr><td valign="top"><a href="#remove_many-4">remove_many/4</a></td><td></td></tr><tr><td valign="top"><a href="#remove_monitor-3">remove_monitor/3</a></td><td></td></tr><tr><td valign="top"><a href="#remove_monitor_pid-2">remove_monitor_pid/2</a></td><td></td></tr><tr><td valign="top"><a href="#remove_monitors-3">remove_monitors/3</a></td><td></td></tr><tr><td valign="top"><a href="#remove_reg-3">remove_reg/3</a></td><td></td></tr><tr><td valign="top"><a href="#remove_reg-4">remove_reg/4</a></td><td></td></tr><tr><td valign="top"><a href="#remove_reverse_mapping-3">remove_reverse_mapping/3</a></td><td></td></tr><tr><td valign="top"><a href="#remove_reverse_mapping-4">remove_reverse_mapping/4</a></td><td></td></tr><tr><td valign="top"><a href="#remove_wait-4">remove_wait/4</a></td><td></td></tr><tr><td valign="top"><a href="#standbys-1">standbys/1</a></td><td></td></tr><tr><td valign="top"><a href="#update_aggr_counter-3">update_aggr_counter/3</a></td><td></td></tr><tr><td valign="top"><a href="#update_counter-3">update_counter/3</a></td><td></td></tr><tr><td valign="top"><a href="#valid_opts-2">valid_opts/2</a></td><td></td></tr></table>
<a name="functions"></a>
## Function Details ##
<a name="add_monitor-4"></a>
### add_monitor/4 ###
`add_monitor(T, Pid, Ref, Type) -> any()`
<a name="await-3"></a>
### await/3 ###
`await(Key, WPid, From) -> any()`
<a name="dbg-1"></a>
### dbg/1 ###
`dbg(Mods) -> any()`
<a name="decrement_resource_count-2"></a>
### decrement_resource_count/2 ###
`decrement_resource_count(C, N) -> any()`
<a name="do_set_counter_value-3"></a>
### do_set_counter_value/3 ###
`do_set_counter_value(Key, Value, Pid) -> any()`
<a name="do_set_value-3"></a>
### do_set_value/3 ###
`do_set_value(Key, Value, Pid) -> any()`
<a name="ensure_monitor-2"></a>
### ensure_monitor/2 ###
`ensure_monitor(Pid, Scope) -> any()`
<a name="followers-1"></a>
### followers/1 ###
`followers(Opts) -> any()`
<a name="insert_attr-4"></a>
### insert_attr/4 ###
`insert_attr(Key, Attrs, Pid, Scope) -> any()`
<a name="insert_many-4"></a>
### insert_many/4 ###
<pre><code>
insert_many(T::<a href="gproc.md#type-type">gproc:type()</a>, Scope::<a href="gproc.md#type-scope">gproc:scope()</a>, KVL::[{<a href="gproc.md#type-key">gproc:key()</a>, any()}], Pid::pid()) -> {true, list()} | false
</code></pre>
<br />
<a name="insert_reg-4"></a>
### insert_reg/4 ###
<pre><code>
insert_reg(K::<a href="gproc.md#type-key">gproc:key()</a>, Value::any(), Pid::pid() | shared, Scope::<a href="gproc.md#type-scope">gproc:scope()</a>) -> boolean()
</code></pre>
<br />
<a name="insert_reg-5"></a>
### insert_reg/5 ###
`insert_reg(K, Value, Pid, Scope, Event) -> any()`
<a name="monitors-1"></a>
### monitors/1 ###
`monitors(Opts) -> any()`
<a name="notify-2"></a>
### notify/2 ###
`notify(Key, Opts) -> any()`
<a name="notify-3"></a>
### notify/3 ###
`notify(Event, Key, Opts) -> any()`
<a name="remove_many-4"></a>
### remove_many/4 ###
`remove_many(T, Scope, L, Pid) -> any()`
<a name="remove_monitor-3"></a>
### remove_monitor/3 ###
`remove_monitor(T, Pid, Ref) -> any()`
<a name="remove_monitor_pid-2"></a>
### remove_monitor_pid/2 ###
`remove_monitor_pid(T, Pid) -> any()`
<a name="remove_monitors-3"></a>
### remove_monitors/3 ###
`remove_monitors(Key, Pid, MPid) -> any()`
<a name="remove_reg-3"></a>
### remove_reg/3 ###
`remove_reg(Key, Pid, Event) -> any()`
<a name="remove_reg-4"></a>
### remove_reg/4 ###
`remove_reg(Key, Pid, Event, Opts) -> any()`
<a name="remove_reverse_mapping-3"></a>
### remove_reverse_mapping/3 ###
`remove_reverse_mapping(Event, Pid, Key) -> any()`
<a name="remove_reverse_mapping-4"></a>
### remove_reverse_mapping/4 ###
`remove_reverse_mapping(Event, Pid, Key, Opts) -> any()`
<a name="remove_wait-4"></a>
### remove_wait/4 ###
`remove_wait(Key, Pid, Ref, Waiters) -> any()`
<a name="standbys-1"></a>
### standbys/1 ###
`standbys(Opts) -> any()`
<a name="update_aggr_counter-3"></a>
### update_aggr_counter/3 ###
`update_aggr_counter(C, N, Val) -> any()`
<a name="update_counter-3"></a>
### update_counter/3 ###
`update_counter(Key, Incr, Pid) -> any()`
<a name="valid_opts-2"></a>
### valid_opts/2 ###
`valid_opts(Type, Default) -> any()`