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gpg: Improve speed of secret key listing.

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* agent/command.c (cmd_keyinfo): Factor some code out to ...
(get_keyinfo_on_cards): ... new.
(cmd_havekey): Add --list mode.
* g10/gpg.h (struct server_control_s): Add new caching vars.
* g10/gpg.c (gpg_deinit_default_ctrl): Release cache.
* g10/call-agent.c (agent_probe_any_secret_key): Init and try to use
the keygrip cache.
(agent_genkey): Clear the cache.
(agent_import_key): Ditto.

* g10/keylist.c (list_all, list_one): Pass ctrl to
agent_probe_any_secret_key.
* g10/getkey.c (lookup): Ditto.
--

With this change we first ask the agent for a list of all secret
keygrips and use that list instead of asking the agent for each public
key.  Speeds up my "gpg -K" with a lot of secret and public keys by
more than 25%.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2021-05-19 02:32:19 +02:00
parent b8e6e485ee
commit 40da61b89b
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
6 changed files with 246 additions and 55 deletions
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8
g10/gpg.h
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@ -110,6 +110,14 @@ struct server_control_s
/* This is used to cache a key data base handle. */
KEYDB_HANDLE cached_getkey_kdb;
/* Cached results from HAVEKEY --list. They are used if the pointer
* is not NULL. The length gives the length in bytes and is a
* multiple of 20. If the no_more flag is set the list shall not
* anymore be refreshed even if it has been freed and NULLed. */
unsigned char *secret_keygrips;
size_t secret_keygrips_len;
int no_more_secret_keygrips;
};