ZeroMQ by Pieter Hintjens

Author:Pieter Hintjens [Pieter Hintjens]
Language: eng
Format: epub
Tags: COMPUTERS / Programming Languages / C
ISBN: 9781449334048
Publisher: O’Reilly Media
Published: 2013-03-11T16:00:00+00:00

The store method (Example 5-43) stores the key-value message into a hashmap, unless the key and value are both null. It nullifies the kvmsg reference so that the object is owned by the hashmap, not the caller.

Example 5-43. Key-value message class, full (kvmsg.c): store method

void kvmsg_store (kvmsg_t **self_p, zhash_t *hash) { assert (self_p); if (*self_p) { kvmsg_t *self = *self_p; assert (self); if (kvmsg_size (self)) { if (self->present [FRAME_KEY] && self->present [FRAME_BODY]) { zhash_update (hash, kvmsg_key (self), self); zhash_freefn (hash, kvmsg_key (self), kvmsg_free); } } else zhash_delete (hash, kvmsg_key (self)); *self_p = NULL; } }

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