Re: mutexes and const_iterators
On 3=D4 15=C8=D5, =CF =CE=E76=CA=B121=B7=D6, "Angus" <nos...@gmail.com> =
I am using a map which holds a list of client connections (to a server).
When a client connects a client gets added to the map and also when a clie=
In various parts of the code the map gets updated - the key is an int and
the value is a class.
As the map may be accessed by multiple threads I use a mutex to control
access - ie locking whenever an item is added or removed.
I have these questions:
1. Do I also need to lock if I just update and item? I access the item vi=
2. Do I need to lock if I simply access the map via a const_iterator?
I think this is a reader-writer problem, nothing specific with /map/.
The insert members shall not affect the validity of iterators
and references to the container, and the erase members shall
invalidate only iterators and references to the erased elements
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