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authorjakob <jakob@eggerapps.at>2010-06-30 13:40:38 +0000
committerjakob <jakob@eggerapps.at>2010-06-30 13:40:38 +0000
commit92b97ba3f3ee634e101483f5129f25b4f8230117 (patch)
tree6e2592ed4d177b29529df6774cf2dd3a6108a65b /Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
parente7502a90d7f5ff4a33c73d54ea81a4e539d0e3ce (diff)
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Improved calling of stored procedures:
- added the CLIENT_MULTI_RESULTS flag to the connection flags - automatically discard all remaining results when unlocking the connection This is not a perfect solution, but will improve usability a lot for those who often call stored procedures. Sequel Pro still doesn't support multiple results -- it will show only the first and silently discard all the remaining ones.
Diffstat (limited to 'Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m')
-rw-r--r--Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m32
1 files changed, 30 insertions, 2 deletions
diff --git a/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m b/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
index b2080c26..9ca945a7 100644
--- a/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
+++ b/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
@@ -43,7 +43,7 @@
BOOL lastPingSuccess;
BOOL pingActive;
-const NSUInteger kMCPConnectionDefaultOption = CLIENT_COMPRESS | CLIENT_REMEMBER_OPTIONS ;
+const NSUInteger kMCPConnectionDefaultOption = CLIENT_COMPRESS | CLIENT_REMEMBER_OPTIONS | CLIENT_MULTI_RESULTS;
const char *kMCPConnectionDefaultSocket = MYSQL_UNIX_ADDR;
const NSUInteger kMCPConnection_Not_Inited = 1000;
const NSUInteger kLengthOfTruncationForLog = 100;
@@ -1485,7 +1485,9 @@ void performThreadedKeepAlive(void *ptr)
// For normal result sets, fetch the results and unlock the connection
if (streamResultType == MCPStreamingNone) {
theResult = [[MCPResult alloc] initWithMySQLPtr:mConnection encoding:mEncoding timeZone:mTimeZone];
- if (!queryCancelled || !queryCancelUsedReconnect) [self unlockConnection];
+ if (!queryCancelled || !queryCancelUsedReconnect) {
+ [self unlockConnection];
+ }
// For streaming result sets, fetch the result pointer and leave the connection locked
} else if (streamResultType == MCPStreamingFast) {
@@ -1695,6 +1697,25 @@ void performThreadedKeepAlive(void *ptr)
return queryCancelUsedReconnect;
}
+/**
+ * Retrieves all remaining results and discards them.
+ * Necessary if we only retrieve one result, and want to discard all the others.
+ */
+- (void)flushMultiResults
+{
+ // repeat as long as there are results
+ while(!mysql_next_result(mConnection))
+ {
+ MYSQL_RES *result = mysql_use_result(mConnection);
+ // check if the result is really a result
+ if (result) {
+ // retrieve all rows
+ while (mysql_fetch_row(result));
+ mysql_free_result(result);
+ }
+ }
+}
+
#pragma mark -
#pragma mark Connection locking
@@ -1746,6 +1767,13 @@ void performThreadedKeepAlive(void *ptr)
NSLog(@"Tried to unlock the connection, but it wasn't locked.");
}
+ // Since we connected with CLIENT_MULTI_RESULT, we must make sure there are nor more results!
+ // This is still a bit of a dirty hack
+ if (mysql_more_results(mConnection)) {
+ NSLog(@"Discarding unretrieved results. This is currently normal when using CALL.");
+ [self flushMultiResults];
+ }
+
// We tell everyone that the connection is available again!
[connectionLock unlockWithCondition:MCPConnectionIdle];
}