[interprocess] construct<> and find_or_construct<>
Are construct<> and find_or_construct<> self-synchronized? For instance, can several process do the following seg.find_construct<type>("name"); (same seg, type and name) without guarding the operation with a mutex? Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo
JOAQUIN LOPEZ MU?Z wrote:
Are construct<> and find_or_construct<> self-synchronized? For instance, can several process do the following
seg.find_construct<type>("name");
(same seg, type and name) without guarding the operation with a mutex?
Yes, all those functions are synchronized with a recursive mutex, so that the constructor of the object can use construct<> again to construct more named objects. This is (vaguely) explained here: http://cloud.prohosting.com/newfunk/boost/libs/interprocess/ doc/html/interprocess/managed_memory_segment_features.html Regards, Ion
Ion Gaztañaga ha escrito:
JOAQUIN LOPEZ MU?Z wrote:
Are construct<> and find_or_construct<> self-synchronized? For instance, can several process do the following
seg.find_construct<type>("name");
(same seg, type and name) without guarding the operation with a mutex?
Yes, all those functions are synchronized with a recursive mutex, so that the constructor of the object can use construct<> again to construct more named objects. This is (vaguely) explained here:
http://cloud.prohosting.com/newfunk/boost/libs/interprocess/ doc/html/interprocess/managed_memory_segment_features.html
Thanks for the info! Best, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo
participants (3)
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"JOAQUIN LOPEZ MU?Z" -
Ion Gaztañaga -
Joaquín Mª López Muñoz