postgres.git / summary / log / commit / refs

commit    8359ed806f3300b79f110f1ac216c58c0732d05c
Author:   Stephen Frost <sfrost@snowman.net>
Date:     Thu Aug 01 19:42:07 2013 +0000
First released in: 9.4.0, 9.0.14, 9.1.10, 9.2.5, 9.3.0

    Improve handling of pthread_mutex_lock error case
    
    We should really be reporting a useful error along with returning
    a valid return code if pthread_mutex_lock() throws an error for
    some reason.  Add that and back-patch to 9.0 as the prior patch.
    
    Pointed out by Alvaro Herrera


 src/interfaces/libpq/fe-secure.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/interfaces/libpq/fe-secure.c b/src/interfaces/libpq/fe-secure.c
index e9a32ded154..b16968b049f 100644
--- a/src/interfaces/libpq/fe-secure.c
+++ b/src/interfaces/libpq/fe-secure.c
@@ -261,7 +261,11 @@ pqsecure_open_client(PGconn *conn)
 
 #ifdef ENABLE_THREAD_SAFETY
 		if (pthread_mutex_lock(&ssl_config_mutex))
-			return -1;
+		{
+			printfPQExpBuffer(&conn->errorMessage,
+				   libpq_gettext("unable to acquire mutex\n"));
+			return PGRES_POLLING_FAILED;
+		}
 #endif
 		/* Create a connection-specific SSL object */
 		if (!(conn->ssl = SSL_new(SSL_context)) ||
@@ -1112,7 +1116,11 @@ initialize_SSL(PGconn *conn)
 		 */
 #ifdef ENABLE_THREAD_SAFETY
 		if (pthread_mutex_lock(&ssl_config_mutex))
+		{
+			printfPQExpBuffer(&conn->errorMessage,
+				   libpq_gettext("unable to acquire mutex\n"));
 			return -1;
+		}
 #endif
 		if (SSL_CTX_use_certificate_chain_file(SSL_context, fnbuf) != 1)
 		{
@@ -1326,7 +1334,11 @@ initialize_SSL(PGconn *conn)
 
 #ifdef ENABLE_THREAD_SAFETY
 		if (pthread_mutex_lock(&ssl_config_mutex))
+		{
+			printfPQExpBuffer(&conn->errorMessage,
+				   libpq_gettext("unable to acquire mutex\n"));
 			return -1;
+		}
 #endif
 		if (SSL_CTX_load_verify_locations(SSL_context, fnbuf, NULL) != 1)
 		{


[parent: f31c149f13e4]