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authorUlrich Drepper <drepper@redhat.com>2009-02-13 20:36:37 +0000
committerUlrich Drepper <drepper@redhat.com>2009-02-13 20:36:37 +0000
commit20e498bdb0608ae6ca431cb49d66d2ed6f5304f5 (patch)
tree55ff7b1aeaaefd6e82c5370ed0fdd91673cd92e5 /nscd/aicache.c
parentd8111eac5422eded7a8680ca198eb5d149a38550 (diff)
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[BZ #5381]
2009-02-13 Ulrich Drepper <drepper@redhat.com> [BZ #5381] * nscd/nscd.h: Remove definitions and declarations for mem_in_flight. Change mempool_alloc prototype. * nscd/mem.c (gc): Don't handle mem_in_flight. (mempool_alloc): Third parameter now only indicates whether this is the first call (to allocate data) or not. If it is, get db rdlock. Release it on error. Don't handle mem_in_flight. * nscd/aicache.c (addhstaiX): Mark he parameter as const. Adjust third parameter of mempool_alloc calls. Nothing to do here in case mempool_alloc fails. Avoid local variable shadowing parameter. No need to get db rdlock before calling cache_add. * nscd/cache.c (cache_add): Adjust call to mempool_alloc. There is no mem_in_flight array anymore. * nscd/connections.c: Remove definition and handling of mem_in_flight. * nscd/grpcache.c (cache_addgr): Adjust third parameter of mempool_alloc calls. Mark he parameter as const. Nothing to do here in case mempool_alloc fails. No need to get db rdlock before calling cache_add. * nscd/hstcache.c (cache_addhst): Likewise. * nscd/initgrcache.c (addinitgroupsX): Likewise. * nscd/servicescache.c (cache_addserv): Likewise. * nscd/pwdcache.c (cache_addpw): Likewise. Remove some debugging code.
Diffstat (limited to 'nscd/aicache.c')
-rw-r--r--nscd/aicache.c47
1 files changed, 15 insertions, 32 deletions
diff --git a/nscd/aicache.c b/nscd/aicache.c
index 5ffab76a04..524c0a63af 100644
--- a/nscd/aicache.c
+++ b/nscd/aicache.c
@@ -1,5 +1,5 @@
/* Cache handling for host lookup.
- Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2004-2008, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
@@ -60,7 +60,8 @@ static const ai_response_header notfound =
static void
addhstaiX (struct database_dyn *db, int fd, request_header *req,
- void *key, uid_t uid, struct hashentry *he, struct datahead *dh)
+ void *key, uid_t uid, struct hashentry *const he,
+ struct datahead *dh)
{
/* Search for the entry matching the key. Please note that we don't
look again in the table whether the dataset is now available. We
@@ -172,13 +173,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
/* Now we can allocate the data structure. If the TTL of the
entry is reported as zero do not cache the entry at all. */
if (ttl != 0 && he == NULL)
- {
- dataset = (struct dataset *) mempool_alloc (db, total
- + req->key_len,
- IDX_result_data);
- if (dataset == NULL)
- ++db->head->addfailed;
- }
+ dataset = (struct dataset *) mempool_alloc (db, total
+ + req->key_len, 1);
if (dataset == NULL)
{
@@ -300,9 +296,9 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
}
else
{
- struct hostent *he = NULL;
+ struct hostent *hstent = NULL;
int herrno;
- struct hostent he_mem;
+ struct hostent hstent_mem;
void *addr;
size_t addrlen;
int addrfamily;
@@ -326,8 +322,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
while (1)
{
rc = __gethostbyaddr2_r (addr, addrlen, addrfamily,
- &he_mem, tmpbuf, tmpbuflen,
- &he, &herrno, NULL);
+ &hstent_mem, tmpbuf, tmpbuflen,
+ &hstent, &herrno, NULL);
if (rc != ERANGE || herrno != NETDB_INTERNAL)
break;
tmpbuf = extend_alloca (tmpbuf, tmpbuflen,
@@ -336,8 +332,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
if (rc == 0)
{
- if (he != NULL)
- canon = he->h_name;
+ if (hstent != NULL)
+ canon = hstent->h_name;
else
canon = key;
}
@@ -352,13 +348,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
/* Now we can allocate the data structure. If the TTL of the
entry is reported as zero do not cache the entry at all. */
if (ttl != 0 && he == NULL)
- {
- dataset = (struct dataset *) mempool_alloc (db, total
- + req->key_len,
- IDX_result_data);
- if (dataset == NULL)
- ++db->head->addfailed;
- }
+ dataset = (struct dataset *) mempool_alloc (db, total
+ + req->key_len, 1);
if (dataset == NULL)
{
@@ -436,7 +427,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
appropriate memory and copy it. */
struct dataset *newp
= (struct dataset *) mempool_alloc (db, total + req->key_len,
- IDX_result_data);
+ 1);
if (__builtin_expect (newp != NULL, 1))
{
/* Adjust pointer into the memory block. */
@@ -445,8 +436,6 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
dataset = memcpy (newp, dataset, total + req->key_len);
alloca_used = false;
}
- else
- ++db->head->addfailed;
/* Mark the old record as obsolete. */
dh->usable = false;
@@ -515,8 +504,7 @@ next_nip:
if (fd != -1)
TEMP_FAILURE_RETRY (send (fd, &notfound, total, MSG_NOSIGNAL));
- dataset = mempool_alloc (db, sizeof (struct dataset) + req->key_len,
- IDX_result_data);
+ dataset = mempool_alloc (db, sizeof (struct dataset) + req->key_len, 1);
/* If we cannot permanently store the result, so be it. */
if (dataset != NULL)
{
@@ -535,8 +523,6 @@ next_nip:
/* Copy the key data. */
key_copy = memcpy (dataset->strdata, key, req->key_len);
}
- else
- ++db->head->addfailed;
}
out:
@@ -554,9 +540,6 @@ next_nip:
MS_ASYNC);
}
- /* Now get the lock to safely insert the records. */
- pthread_rwlock_rdlock (&db->lock);
-
(void) cache_add (req->type, key_copy, req->key_len, &dataset->head,
true, db, uid, he == NULL);