outbox_delete_single_expired() function
Deletes single expired message returning it's message id
Return value
msg id of the deleted message, -1 if no expired message in the outbox
outbox_delete_single_expired() calls 1 function:
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outbox_delete_single_expired()
outbox_delete_single_expired() reads 7 variables and writes 1 variable:
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outbox_delete_single_expired()
outbox_delete_single_expired() allocates 1 types:
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outbox_delete_single_expired()