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socache API tweaks based on chrisd's review:

Browse Source 
* include/ap_socache.h (ap_socache_provider_t::store): Take a pool.
  (ap_socache_provider_t::retrieve): Guarantee APR_NOTFOUND for a
  "not found" result.
  (ap_socache_provider_t::remove): Return an apr_status_t.

* modules/cache/mod_socache_dc.c, modules/cache/mod_socache_dbm.c,
  modules/cache/mod_socache_shmcb,
  modules/cache/mod_socache_memcache.c: Adjust accordingly.

* modules/ssl/ssl_scache.c (ssl_scache_store): Pass pool to
  sesscache->store.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@726059 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Joe Orton
2008-12-12 15:56:15 +00:00
parent e92019fdcb
commit aa062c60f3
6 changed files with 55 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/ap_socache.h
View File

@@ -116,11 +116,14 @@ typedef struct ap_socache_provider_t {
* @param expiry Absolute time at which the object expires
* @param data Data to store; binary blob
* @param datalen Length of data blob
* @param pool Pool for temporary allocations.
* @return APR status value.
*/
apr_status_t (*store)(ap_socache_instance_t *instance, server_rec *s,
const unsigned char *id, unsigned int idlen,
time_t expiry,
unsigned char *data, unsigned int datalen);
unsigned char *data, unsigned int datalen,
apr_pool_t *pool);
/**
* Retrieve a cached object.
@@ -132,6 +135,8 @@ typedef struct ap_socache_provider_t {
* @param datalen On entry, length of data buffer; on exit, the
* number of bytes written to the data buffer.
* @param pool Pool for temporary allocations.
* @return APR status value; APR_NOTFOUND if the object was not
* found
*/
apr_status_t (*retrieve)(ap_socache_instance_t *instance, server_rec *s,
const unsigned char *id, unsigned int idlen,
@@ -145,9 +150,9 @@ typedef struct ap_socache_provider_t {
* @param idlen Length of id blob
* @param pool Pool for temporary allocations.
*/
void (*remove)(ap_socache_instance_t *instance, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *pool);
apr_status_t (*remove)(ap_socache_instance_t *instance, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *pool);
/** Dump the status of a cache instance for mod_status. Will use
* the ap_r* interfaces to produce appropriate status output.

25
modules/cache/mod_socache_dbm.c vendored
View File

@@ -71,9 +71,9 @@ struct ap_socache_instance_t {
static void socache_dbm_expire(ap_socache_instance_t *ctx, server_rec *s);
static void socache_dbm_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *p);
static apr_status_t socache_dbm_remove(ap_socache_instance_t *ctx,
server_rec *s, const unsigned char *id,
unsigned int idlen, apr_pool_t *p);
static const char *socache_dbm_create(ap_socache_instance_t **context,
const char *arg,
@@ -176,10 +176,11 @@ static void socache_dbm_kill(ap_socache_instance_t *ctx, server_rec *s)
return;
}
static apr_status_t socache_dbm_store(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
time_t expiry, unsigned char *ucaData,
unsigned int nData)
static apr_status_t socache_dbm_store(ap_socache_instance_t *ctx,
server_rec *s, const unsigned char *id,
unsigned int idlen, time_t expiry,
unsigned char *ucaData,
unsigned int nData, apr_pool_t *pool)
{
apr_dbm_t *dbm;
apr_datum_t dbmkey;
@@ -315,9 +316,9 @@ static apr_status_t socache_dbm_retrieve(ap_socache_instance_t *ctx, server_rec
return APR_SUCCESS;
}
static void socache_dbm_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *p)
static apr_status_t socache_dbm_remove(ap_socache_instance_t *ctx,
server_rec *s, const unsigned char *id,
unsigned int idlen, apr_pool_t *p)
{
apr_dbm_t *dbm;
apr_datum_t dbmkey;
@@ -336,12 +337,12 @@ static void socache_dbm_remove(ap_socache_instance_t *ctx, server_rec *s,
"Cannot open SSLSessionCache DBM file `%s' for writing "
"(delete)",
ctx->data_file);
return;
return rv;
}
apr_dbm_delete(dbm, dbmkey);
apr_dbm_close(dbm);
return;
return APR_SUCCESS;
}
static void socache_dbm_expire(ap_socache_instance_t *ctx, server_rec *s)

11
modules/cache/mod_socache_dc.c vendored
View File

@@ -93,7 +93,8 @@ static void socache_dc_kill(ap_socache_instance_t *ctx, server_rec *s)
static apr_status_t socache_dc_store(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
time_t timeout,
unsigned char *der, unsigned int der_len)
unsigned char *der, unsigned int der_len,
apr_pool_t *p)
{
/* !@#$%^ - why do we deal with *absolute* time anyway??? */
timeout -= time(NULL);
@@ -128,15 +129,17 @@ static apr_status_t socache_dc_retrieve(ap_socache_instance_t *ctx, server_rec *
return APR_SUCCESS;
}
static void socache_dc_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *p)
static apr_status_t socache_dc_remove(ap_socache_instance_t *ctx,
server_rec *s, const unsigned char *id,
unsigned int idlen, apr_pool_t *p)
{
/* Remove any corresponding session from the distributed cache context */
if (!DC_CTX_remove_session(ctx->dc, id, idlen)) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, "distributed scache 'remove_session' MISS");
return APR_NOTFOUND;
} else {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, "distributed scache 'remove_session' HIT");
return APR_SUCCESS;
}
}

17
modules/cache/mod_socache_memcache.c vendored
View File

@@ -201,7 +201,8 @@ static int socache_mc_id2key(ap_socache_instance_t *ctx,
static apr_status_t socache_mc_store(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
time_t timeout,
unsigned char *ucaData, unsigned int nData)
unsigned char *ucaData, unsigned int nData,
apr_pool_t *p)
{
char buf[MC_KEY_LEN];
apr_status_t rv;
@@ -222,8 +223,7 @@ static apr_status_t socache_mc_store(ap_socache_instance_t *ctx, server_rec *s,
return APR_SUCCESS;
}
static apr_status_t socache_mc_retrieve(ap_socache_instance_t *ctx,
server_rec *s,
static apr_status_t socache_mc_retrieve(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
unsigned char *dest, unsigned int *destlen,
apr_pool_t *p)
@@ -259,15 +259,15 @@ static apr_status_t socache_mc_retrieve(ap_socache_instance_t *ctx,
return APR_SUCCESS;
}
static void socache_mc_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *p)
static apr_status_t socache_mc_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id,
unsigned int idlen, apr_pool_t *p)
{
char buf[MC_KEY_LEN];
apr_status_t rv;
if (socache_mc_id2key(ctx, id, idlen, buf, sizeof buf)) {
return;
return APR_EINVAL;
}
rv = apr_memcache_delete(ctx->mc, buf, 0);
@@ -276,8 +276,9 @@ static void socache_mc_remove(ap_socache_instance_t *ctx, server_rec *s,
ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, s,
"scache_mc: error deleting key '%s' ",
buf);
return;
}
return rv;
}
static void socache_mc_status(ap_socache_instance_t *ctx, request_rec *r, int flags)

26
modules/cache/mod_socache_shmcb.c vendored
View File

@@ -447,11 +447,11 @@ static void socache_shmcb_kill(ap_socache_instance_t *ctx, server_rec *s)
}
static apr_status_t socache_shmcb_store(ap_socache_instance_t *ctx,
server_rec *s,
const unsigned char *id, unsigned int idlen,
time_t timeout,
server_rec *s, const unsigned char *id,
unsigned int idlen, time_t timeout,
unsigned char *encoded,
unsigned int len_encoded)
unsigned int len_encoded,
apr_pool_t *p)
{
SHMCBHeader *header = ctx->header;
SHMCBSubcache *subcache = SHMCB_MASK(header, id);
@@ -503,12 +503,13 @@ static apr_status_t socache_shmcb_retrieve(ap_socache_instance_t *ctx,
return rv == 0 ? APR_SUCCESS : APR_EGENERAL;
}
static void socache_shmcb_remove(ap_socache_instance_t *ctx, server_rec *s,
const unsigned char *id, unsigned int idlen,
apr_pool_t *p)
static apr_status_t socache_shmcb_remove(ap_socache_instance_t *ctx,
server_rec *s, const unsigned char *id,
unsigned int idlen, apr_pool_t *p)
{
SHMCBHeader *header = ctx->header;
SHMCBSubcache *subcache = SHMCB_MASK(header, id);
apr_status_t rv;
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
"socache_shmcb_remove (0x%02x -> subcache %d)",
@@ -516,14 +517,19 @@ static void socache_shmcb_remove(ap_socache_instance_t *ctx, server_rec *s,
if (idlen < 4) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, "unusably short session_id provided "
"(%u bytes)", idlen);
return;
return APR_EINVAL;
}
if (shmcb_subcache_remove(s, header, subcache, id, idlen))
if (shmcb_subcache_remove(s, header, subcache, id, idlen) == 0) {
header->stat_removes_hit++;
else
rv = APR_SUCCESS;
} else {
header->stat_removes_miss++;
rv = APR_NOTFOUND;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
"leaving socache_shmcb_remove successfully");
return rv;
}
static void socache_shmcb_status(ap_socache_instance_t *ctx,

2
modules/ssl/ssl_scache.c
View File

@@ -114,7 +114,7 @@ BOOL ssl_scache_store(server_rec *s, UCHAR *id, int idlen,
}
rv = mc->sesscache->store(mc->sesscache_context, s, id, idlen,
expiry, encoded, len);
expiry, encoded, len, p);
if (mc->sesscache->flags & AP_SOCACHE_FLAG_NOTMPSAFE) {
ssl_mutex_off(s);