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-rw-r--r--ChangeLog3
-rw-r--r--nscd/connections.c35
-rw-r--r--nscd/grpcache.c4
-rw-r--r--nscd/hstcache.c4
-rw-r--r--nscd/pwdcache.c4
5 files changed, 28 insertions, 22 deletions
diff --git a/ChangeLog b/ChangeLog
index 1eb5574..4588974 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,8 @@
2001-07-16 Ulrich Drepper <drepper@redhat.com>
* nscd/connections.c: Print messages caused by user application
- only if debug_level > 0.
+ only if debug_level > 0. Add little performance improvements.
+ Use TEMP_FAILURE_RETRY around write calls.
* nscd/grpcache.c: Likewise.
* nscd/hstcache.c: Likewise.
* nscd/pwdcache.c: Likewise.
diff --git a/nscd/connections.c b/nscd/connections.c
index 47660d7..7f7514f 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -203,9 +203,10 @@ invalidate_cache (char *key)
number = pwddb;
else if (strcmp (key, "group") == 0)
number = grpdb;
- else if (strcmp (key, "hosts") == 0)
+ else if (__builtin_expect (strcmp (key, "hosts"), 0) == 0)
number = hstdb;
- else return;
+ else
+ return;
if (dbs[number].enabled)
prune_cache (&dbs[number], LONG_MAX);
@@ -216,11 +217,11 @@ invalidate_cache (char *key)
static void
handle_request (int fd, request_header *req, void *key, uid_t uid)
{
- if (debug_level > 0)
+ if (__builtin_expect (debug_level, 0) > 0)
dbg_log (_("handle_request: request received (Version = %d)"),
req->version);
- if (req->version != NSCD_VERSION)
+ if (__builtin_expect (req->version, NSCD_VERSION) != NSCD_VERSION)
{
if (debug_level > 0)
dbg_log (_("\
@@ -229,12 +230,13 @@ cannot handle old request version %d; current version is %d"),
return;
}
- if (req->type >= GETPWBYNAME && req->type <= LASTDBREQ)
+ if (__builtin_expect (req->type, GETPWBYNAME) >= GETPWBYNAME
+ && __builtin_expect (req->type, LASTDBREQ) <= LASTDBREQ)
{
struct hashentry *cached;
struct database *db = &dbs[serv2db[req->type]];
- if (debug_level > 0)
+ if (__builtin_expect (debug_level, 0) > 0)
{
if (req->type == GETHOSTBYADDR || req->type == GETHOSTBYADDRv6)
{
@@ -256,7 +258,7 @@ cannot handle old request version %d; current version is %d"),
if (TEMP_FAILURE_RETRY (write (fd, db->disabled_iov->iov_base,
db->disabled_iov->iov_len))
!= db->disabled_iov->iov_len
- && debug_level > 0)
+ && __builtin_expect (debug_level, 0) > 0)
{
/* We have problems sending the result. */
char buf[256];
@@ -278,7 +280,7 @@ cannot handle old request version %d; current version is %d"),
/* Hurray it's in the cache. */
if (TEMP_FAILURE_RETRY (write (fd, cached->packet, cached->total))
!= cached->total
- && debug_level > 0)
+ && __builtin_expect (debug_level, 0) > 0)
{
/* We have problems sending the result. */
char buf[256];
@@ -293,7 +295,7 @@ cannot handle old request version %d; current version is %d"),
pthread_rwlock_unlock (&db->lock);
}
- else if (debug_level > 0)
+ else if (__builtin_expect (debug_level, 0) > 0)
{
if (req->type == INVALIDATE)
dbg_log ("\t%s (%s)", serv2str[req->type], (char *)key);
@@ -425,7 +427,7 @@ nscd_run (void *p)
char buf[256];
uid_t uid = 0;
- if (fd < 0)
+ if (__builtin_expect (fd, 0) < 0)
{
dbg_log (_("while accepting connection: %s"),
strerror_r (errno, buf, sizeof (buf)));
@@ -433,8 +435,9 @@ nscd_run (void *p)
}
/* Now read the request. */
- if (TEMP_FAILURE_RETRY (read (fd, &req, sizeof (req)))
- != sizeof (req))
+ if (__builtin_expect (TEMP_FAILURE_RETRY (read (fd, &req,
+ sizeof (req)))
+ != sizeof (req), 0))
{
if (debug_level > 0)
dbg_log (_("short read while reading request: %s"),
@@ -469,7 +472,8 @@ nscd_run (void *p)
/* It should not be possible to crash the nscd with a silly
request (i.e., a terribly large key). We limit the size
to 1kb. */
- if (req.key_len < 0 || req.key_len > 1024)
+ if (__builtin_expect (req.key_len, 1) < 0
+ || __builtin_expect (req.key_len, 1) > 1024)
{
if (debug_level > 0)
dbg_log (_("key length in request too long: %d"), req.key_len);
@@ -481,8 +485,9 @@ nscd_run (void *p)
/* Get the key. */
char keybuf[req.key_len];
- if (TEMP_FAILURE_RETRY (read (fd, keybuf, req.key_len))
- != req.key_len)
+ if (__builtin_expect (TEMP_FAILURE_RETRY (read (fd, keybuf,
+ req.key_len))
+ != req.key_len, 0))
{
if (debug_level > 0)
dbg_log (_("short read while reading request key: %s"),
diff --git a/nscd/grpcache.c b/nscd/grpcache.c
index 5e037b5..93a7a0d 100644
--- a/nscd/grpcache.c
+++ b/nscd/grpcache.c
@@ -170,7 +170,7 @@ cache_addgr (struct database *db, int fd, request_header *req, void *key,
memcpy (cp, buf, n);
/* Write the result. */
- written = write (fd, &data->resp, total);
+ written = TEMP_FAILURE_RETRY (write (fd, &data->resp, total));
/* Compute the timeout time. */
t += db->postimeout;
@@ -187,7 +187,7 @@ cache_addgr (struct database *db, int fd, request_header *req, void *key,
pthread_rwlock_unlock (&db->lock);
}
- if (written != total && debug_level > 0)
+ if (__builtin_expect (written != total, 0) && debug_level > 0)
{
char buf[256];
dbg_log (_("short write in %s: %s"), __FUNCTION__,
diff --git a/nscd/hstcache.c b/nscd/hstcache.c
index 3e8c370..c7cdc4d 100644
--- a/nscd/hstcache.c
+++ b/nscd/hstcache.c
@@ -200,7 +200,7 @@ cache_addhst (struct database *db, int fd, request_header *req, void *key,
/* We write the dataset before inserting it to the database
since while inserting this thread might block and so would
unnecessarily let the receiver wait. */
- written = write (fd, data, total);
+ written = TEMP_FAILURE_RETRY (write (fd, data, total));
addr_list_type = (hst->h_length == NS_INADDRSZ
? GETHOSTBYADDR : GETHOSTBYADDRv6);
@@ -272,7 +272,7 @@ cache_addhst (struct database *db, int fd, request_header *req, void *key,
pthread_rwlock_unlock (&db->lock);
}
- if (written != total && debug_level > 0)
+ if (__builtin_expect (written != total, 0) && debug_level > 0)
{
char buf[256];
dbg_log (_("short write in %s: %s"), __FUNCTION__,
diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c
index 88990ad..94d8bd2 100644
--- a/nscd/pwdcache.c
+++ b/nscd/pwdcache.c
@@ -166,7 +166,7 @@ cache_addpw (struct database *db, int fd, request_header *req, void *key,
/* We write the dataset before inserting it to the database
since while inserting this thread might block and so would
unnecessarily let the receiver wait. */
- written = write (fd, &data->resp, total);
+ written = TEMP_FAILURE_RETRY (write (fd, &data->resp, total));
/* Compute the timeout time. */
t += db->postimeout;
@@ -183,7 +183,7 @@ cache_addpw (struct database *db, int fd, request_header *req, void *key,
pthread_rwlock_unlock (&db->lock);
}
- if (written != total && debug_level > 0)
+ if (__builtin_expect (written != total, 0) && debug_level > 0)
{
char buf[256];
dbg_log (_("short write in %s: %s"), __FUNCTION__,
generated by cgit v1.1 at 2024-11-29 17:59:07 +0000