Hi Mark, many thanks for the reply, you are quite right I don't actually understand how to use the apis. php uses the api to perform imap functions and this was a sample program they sent me to say the problem was with the imap code rather than their use of it when I raised a bug with them to say that OP_PROTOTYPE causes a crash and may not be of use. They insisted the problem was with c-client and not their code. Your response has been very helpful indeed and I now should be able to convince the php maintainers that they need to do something with their code. It also has provided me with a bit more understanding of the code which is very useful, thanks for pointing me in the right direction.
Best regards Dave Kelsey m...@hsinghsing.panda.com wrote on 01/07/2009 19:14:05: > Hi Dave - > > This is not a bug. Rather, you have misunderstood some important points. > > There are three issues with your sample program. > > [1] You SHOULD include c-client.h, and not mail.h directly. mail.h has > most, but not all, of the consumer API definitions and prototypes. > > [2] You MUST (repeat, MUST!!) include linkage.c at the start of your > main() function instead of calling mail_link() directly. > > [3] A prototype stream is not something that can be given to > mail_close_full(). > > Without knowing why you are opening a prototype stream, it appears to me > that you do not understand what a prototype stream is and how/why it is > used; especially since this is an IMAP prototype stream, something which > is almost completely useless except for internal c-client purposes. > > A prototype stream is not a stream. The closest analog to a prototype > stream would be a factory object or class definition. Internally, a > prototype stream is simply a pointer to a static area of constant memory > that has the dtb for that driver. > > Prototype streams have VERY limited use to API consumers. The primary > consumer use is that of a local filesystem format prototype stream as an > argument to mail_create() to force the created mailbox to be in that > format. However, that use is deprecated in favor of the #driver.???/ > prefix; e.g., > mail_create (NIL,"#driver.mix/newbox"); > is the preferred and more modern way of doing > mail_create (mail_open (NIL,existingmixmailbox,OP_PROTOTYPE),"newbox"); > > The prototype stream method is the way to create a new local filesystem > mailbox of the same format as an existing local filesystem mailbox, as > opposed to a specified format via the #driver.???/ syntax . This is > therefore the 99% reason why any API consumer would use a prototype > stream. > > Your use may be in the remaining 1% (it would have to be, given that it's > an IMAP prototype stream), but I suspect that it's really a case of your > not understanding what you are doing. > > Getting back to the subject at hand; since it is a factory object (or > class definition), it is inappropriate to call non-factory methods on it. > For most API consumers, other than mail_create() with a local filesystem > driver prototype, the remaining uses are power tools for master sorcerers. > > mail_close() and mail_close_full() are completely inappropriate methods to > use with a prototype stream, even for a master sorcerer. A prototype > stream is not a stream, and is not something that can be closed. When you > are finished with a prototype stream, you just drop the pointer. > > -- Mark -- > > http://panda.com/mrc > Democracy is two wolves and a sheep deciding what to eat for lunch. > Liberty is a well-armed sheep contesting the vote. Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
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