| author | Tero Marttila <terom@fixme.fi> |
| Fri, 08 Aug 2008 00:15:29 +0300 | |
| changeset 31 | 12d5361e7472 |
| parent 30 | 33e464fd6773 |
| child 32 | 1b09dad6757e |
| permissions | -rw-r--r-- |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
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changeset
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#ifndef CACHE_OP_H |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
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#define CACHE_OP_H |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
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| 31 | 4 |
#include <sys/queue.h> |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
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enum cache_op_state {
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
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OP_STATE_INVALID, |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
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OP_STATE_LOOKUP, |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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9 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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OP_STATE_MISS, |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
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OP_STATE_HIT, |
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OP_STATE_WRITE, |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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14 |
}; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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15 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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struct cache_op {
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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struct cache *cache; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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18 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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LIST_ENTRY(cache_op) node; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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20 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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struct cache_key *key; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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LIST_HEAD(cache_op_req_list_head, cache_req) req_list; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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enum cache_op_state state; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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26 |
}; |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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27 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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/* |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
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* Initialize the basic cache op state. Refcount is set to one. |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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*/ |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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int cache_op_init(struct cache_op *op, struct cache *cache, struct cache_key *key); |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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/* |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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* Look for an existing cache_op in the given cache. Return NULL if not found, return pointer and increment |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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* refcount if found. |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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*/ |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
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struct cache_op *cache_op_find (struct cache *cache, struct cache_key *key); |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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38 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
39 |
/* |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
40 |
* Add the given cache_req to the list of reqs using this op |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
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*/ |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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int cache_op_register (struct cache_op *op, struct cache_req *req); |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
43 |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
|
44 |
/* |
| 31 | 45 |
* Prepare op for writing data to it, size_hint can be used to preallocate resources |
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*/ |
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int cache_op_begin_write (struct cache_op *op, size_t size_hint); |
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int cache_op_push (struct cache_op *op, int fd, size_t *size); |
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/* |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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* Used by the engines to notify that the key lookup completed |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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*/ |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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int cache_op_lookup_done (struct cache_op *op, int found); |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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| 31 | 56 |
/* |
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* in OP_STATE_WRITE |
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*/ |
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int cache_op_write_ready (struct cache_op *op); |
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int cache_op_data_available (struct cache_op *op); |
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int cache_op_write_done (struct cache_op *op); |
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33e464fd6773
my hg working dir managed to break itself somehow... my attempt to fix that, and add some cache code :)
terom@cl-543.hel-01.fi.sixxs.net
parents:
diff
changeset
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64 |
#endif /* CACHE_OP_H */ |