[Pkg-gnupg-commit] [gnupg2] 103/124: gpg: Avoid multiple open calls to the keybox file.
Daniel Kahn Gillmor
dkg at fifthhorseman.net
Wed Apr 5 15:55:37 UTC 2017
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dkg pushed a commit to branch experimental
in repository gnupg2.
commit 5556eca5acd46983bff0b38a1ffbc2f07fbaba9f
Author: Werner Koch <wk at gnupg.org>
Date: Fri Mar 31 20:44:05 2017 +0200
gpg: Avoid multiple open calls to the keybox file.
* g10/keydb.h (KEYDB_HANDLE): Move typedef to ...
* g10/gpg.h: here.
(struct server_control_s): Add field 'cached_getkey_kdb'.
* g10/gpg.c (gpg_deinit_default_ctrl): Release that keydb handle.
* g10/getkey.c (getkey_end): Cache keydb handle.
(get_pubkey): Use cached keydb handle.
* kbx/keybox-search.c (keybox_search_reset): Use lseek instead of
closing the file.
--
Before this patch a "gpg --check-sigs" opened and closed the keybox
file for almost every signature check. By caching the keydb handle
and using lseek(2) this can be limited to just 2 times. This might
speed up things on Windows.
Signed-off-by: Werner Koch <wk at gnupg.org>
---
g10/getkey.c | 23 ++++++++++++++++++-----
g10/gpg.c | 2 ++
g10/gpg.h | 7 ++++++-
g10/keydb.h | 3 ---
kbx/keybox-search.c | 9 +++++++--
5 files changed, 33 insertions(+), 11 deletions(-)
diff --git a/g10/getkey.c b/g10/getkey.c
index d8a1058..dab63fa 100644
--- a/g10/getkey.c
+++ b/g10/getkey.c
@@ -736,11 +736,21 @@ get_pubkey (ctrl_t ctrl, PKT_public_key * pk, u32 * keyid)
memset (&ctx, 0, sizeof ctx);
ctx.exact = 1; /* Use the key ID exactly as given. */
ctx.not_allocated = 1;
- ctx.kr_handle = keydb_new ();
- if (!ctx.kr_handle)
+
+ if (ctrl && ctrl->cached_getkey_kdb)
+ {
+ ctx.kr_handle = ctrl->cached_getkey_kdb;
+ ctrl->cached_getkey_kdb = NULL;
+ keydb_search_reset (ctx.kr_handle);
+ }
+ else
{
- rc = gpg_error_from_syserror ();
- goto leave;
+ ctx.kr_handle = keydb_new ();
+ if (!ctx.kr_handle)
+ {
+ rc = gpg_error_from_syserror ();
+ goto leave;
+ }
}
ctx.nitems = 1;
ctx.items[0].mode = KEYDB_SEARCH_MODE_LONG_KID;
@@ -2208,7 +2218,10 @@ getkey_end (ctrl_t ctrl, getkey_ctx_t ctx)
{
if (ctx)
{
- keydb_release (ctx->kr_handle);
+ if (ctrl && !ctrl->cached_getkey_kdb)
+ ctrl->cached_getkey_kdb = ctx->kr_handle;
+ else
+ keydb_release (ctx->kr_handle);
free_strlist (ctx->extra_list);
if (!ctx->not_allocated)
xfree (ctx);
diff --git a/g10/gpg.c b/g10/gpg.c
index 24636aa..e228427 100644
--- a/g10/gpg.c
+++ b/g10/gpg.c
@@ -2195,6 +2195,8 @@ gpg_deinit_default_ctrl (ctrl_t ctrl)
tofu_closedbs (ctrl);
#endif
gpg_dirmngr_deinit_session_data (ctrl);
+
+ keydb_release (ctrl->cached_getkey_kdb);
}
diff --git a/g10/gpg.h b/g10/gpg.h
index c663585..9b8b77c 100644
--- a/g10/gpg.h
+++ b/g10/gpg.h
@@ -59,10 +59,13 @@ struct server_local_s;
struct dirmngr_local_s;
typedef struct dirmngr_local_s *dirmngr_local_t;
-/* Object used to describe a keyblok node. */
+/* Object used to describe a keyblock node. */
typedef struct kbnode_struct *KBNODE; /* Deprecated use kbnode_t. */
typedef struct kbnode_struct *kbnode_t;
+/* The handle for keydb operations. */
+typedef struct keydb_handle *KEYDB_HANDLE;
+
/* TOFU database meta object. */
struct tofu_dbs_s;
typedef struct tofu_dbs_s *tofu_dbs_t;
@@ -94,6 +97,8 @@ struct server_control_s
int batch_updated_wanted;
} tofu;
+ /* This is used to cache a key data base handle. */
+ KEYDB_HANDLE cached_getkey_kdb;
};
diff --git a/g10/keydb.h b/g10/keydb.h
index 271e68f..7f42738 100644
--- a/g10/keydb.h
+++ b/g10/keydb.h
@@ -109,9 +109,6 @@ struct pubkey_find_info {
};
-typedef struct keydb_handle *KEYDB_HANDLE;
-
-
/* Helper type for preference fucntions. */
union pref_hint
{
diff --git a/kbx/keybox-search.c b/kbx/keybox-search.c
index 56515d1..0bd4e01 100644
--- a/kbx/keybox-search.c
+++ b/kbx/keybox-search.c
@@ -746,8 +746,13 @@ keybox_search_reset (KEYBOX_HANDLE hd)
if (hd->fp)
{
- fclose (hd->fp);
- hd->fp = NULL;
+ if (fseeko (hd->fp, 0, SEEK_SET))
+ {
+ /* Ooops. Seek did not work. Close so that the search will
+ * open the file again. */
+ fclose (hd->fp);
+ hd->fp = NULL;
+ }
}
hd->error = 0;
hd->eof = 0;
--
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