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authorBibiko <bibiko@eva.mpg.de>2010-03-31 13:38:33 +0000
committerBibiko <bibiko@eva.mpg.de>2010-03-31 13:38:33 +0000
commit6ab16708e84f0da9dbc26821c88e0c277d71c58e (patch)
treeb2c0f732c3285e087622aa19b5ee46b775caa92f /Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
parent4960324c8ec2b830ad4daf8ca313de82b2dc2b2c (diff)
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• querying for db structure is queued for the same connection to avoid 'overlapping' access to global variables
• after querying db structure write back data on main thread • completion list displays animated sync images if connection is just querying db structure data • fixed some minor issue for completion list • make sure that if last window of a connection is closed all relevant data will be removed from global variables Note: please test!
Diffstat (limited to 'Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m')
-rw-r--r--Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m668
1 files changed, 353 insertions, 315 deletions
diff --git a/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m b/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
index fd9842aa..0bf5d713 100644
--- a/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
+++ b/Frameworks/MCPKit/MCPFoundationKit/MCPConnection.m
@@ -118,7 +118,8 @@ static BOOL sTruncateLongFieldInLogs = YES;
structure = [[NSMutableDictionary alloc] initWithCapacity:1];
allKeysofDbStructure = [[NSMutableArray alloc] initWithCapacity:20];
- isQueryingDbStructure = NO;
+ isQueryingDbStructure = 0;
+ lockQuerying = NO;
connectionThreadId = 0;
maxAllowedPacketSize = -1;
@@ -1861,365 +1862,416 @@ void performThreadedKeepAlive(void *ptr)
{
NSAutoreleasePool *queryPool = [[NSAutoreleasePool alloc] init];
- if (!isQueryingDbStructure) {
+ // Requests are queued
+ while(isQueryingDbStructure > 0) { usleep(1000000); }
+
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureIsUpdating" object:delegate];
+
+ NSString *SPUniqueSchemaDelimiter = @"￸";
+
+ NSString *connectionID;
+ if([delegate respondsToSelector:@selector(connectionID)])
+ connectionID = [NSString stringWithString:[[self delegate] connectionID]];
+ else
+ connectionID = @"_";
+
+ // Re-init with already cached data from navigator controller
+ NSMutableDictionary *queriedStructure = [NSMutableDictionary dictionary];
+ NSDictionary *dbstructure = [[[self delegate] getDbStructure] retain];
+ [queriedStructure setDictionary:[NSMutableDictionary dictionaryWithDictionary:dbstructure]];
+
+ NSMutableArray *queriedStructureKeys = [NSMutableArray array];
+ NSArray *dbStructureKeys = [[[self delegate] allSchemaKeys] retain];
+ [queriedStructureKeys setArray:dbStructureKeys];
+ if(dbstructure) [dbstructure release], dbstructure = nil;
+ if(dbStructureKeys) [dbStructureKeys release], dbStructureKeys = nil;
+
+ BOOL removeAddFlag = NO;
+
+ // Add all known databases coming from connection if they aren't parsed yet
+ NSArray *dbs = [[NSString stringWithFormat:@"%@%@%@",
+ [[[self delegate] allSystemDatabaseNames] componentsJoinedByString:SPUniqueSchemaDelimiter],
+ SPUniqueSchemaDelimiter,
+ [[[self delegate] allDatabaseNames] componentsJoinedByString:SPUniqueSchemaDelimiter]]
+ componentsSeparatedByString:SPUniqueSchemaDelimiter];
+
+ for(id db in dbs) {
+ NSString *dbid = [NSString stringWithFormat:@"%@%@%@", connectionID, SPUniqueSchemaDelimiter, db];
+ if(![queriedStructure objectForKey:dbid]) {
+ removeAddFlag = YES;
+ [queriedStructure setObject:db forKey:dbid];
+ [queriedStructureKeys addObject:dbid];
+ }
+ }
-// NSLog(@"queryDbStructureWithUserInfo called with %@ and db %@", [userInfo description], [[[self delegate] database] description]);
+ // Remove deleted databases in structure and keys in allKeysofDbStructure
+ // Use a dict to avoid <NSCFDictionary> was mutated while being enumerated. while iterating via allKeys
+ NSArray *keys = [queriedStructure allKeys];
+ for(id key in keys) {
+ NSString *db = [[key componentsSeparatedByString:SPUniqueSchemaDelimiter] objectAtIndex:1];
+ if(![dbs containsObject:db]) {
+ removeAddFlag = YES;
+ [queriedStructure removeObjectForKey:key];
+ NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT SELF BEGINSWITH %@", [NSString stringWithFormat:@"%@%@", key, SPUniqueSchemaDelimiter]];
+ [queriedStructureKeys filterUsingPredicate:predicate];
+ [queriedStructureKeys removeObject:key];
+ }
+ }
- isQueryingDbStructure = YES;
+ NSString *currentDatabase = nil;
+ if([delegate respondsToSelector:@selector(database)])
+ currentDatabase = [[self delegate] database];
+
+ if(!currentDatabase || (currentDatabase && ![currentDatabase length])) {
+
+ // Updating the global variables and make sure that no request reads these global variables
+ // while updating
+ [self performSelectorOnMainThread:@selector(lockQuerying) withObject:nil waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(updateGlobalVariablesWith:) withObject:[NSDictionary dictionaryWithObjectsAndKeys:[queriedStructure retain], @"structure", [queriedStructureKeys retain], @"keys", nil] waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(unlockQuerying) withObject:nil waitUntilDone:YES];
+ if(removeAddFlag)
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
+ [queryPool release];
+ return;
+ }
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureIsUpdating" object:delegate];
+ NSString *db_id = [NSString stringWithFormat:@"%@%@%@", connectionID, SPUniqueSchemaDelimiter, currentDatabase];
- NSString *SPUniqueSchemaDelimiter = @"￸";
+ // mysql and information_schema's schema will never change thus query data only once
+ if([currentDatabase isEqualToString:@"mysql"]) {
+ if([queriedStructure objectForKey:db_id] && [[queriedStructure objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
- NSString *connectionID;
- if([delegate respondsToSelector:@selector(connectionID)])
- connectionID = [NSString stringWithString:[[self delegate] connectionID]];
- else
- connectionID = @"_";
-
- // Re-init with already cached data from navigator controller
- NSDictionary *dbstructure = [[[self delegate] getDbStructure] retain];
- [structure removeAllObjects];
- [structure setObject:[NSMutableDictionary dictionaryWithDictionary:dbstructure] forKey:connectionID];
- NSArray *allStructureKeys = [[self delegate] allSchemaKeys];
- if(allStructureKeys && [allStructureKeys count]) {
- if(allKeysofDbStructure) [allKeysofDbStructure release];
- allKeysofDbStructure = nil;
- allKeysofDbStructure = [[NSMutableArray alloc] initWithCapacity:[allKeysofDbStructure count]];
- [allKeysofDbStructure setArray:allStructureKeys];
- }
- if(dbstructure) [dbstructure release], dbstructure = nil;
-
- BOOL removeAddFlag = NO;
-
- // Add all known databases coming from connection if they aren't parsed yet
- NSArray *dbs = [[NSString stringWithFormat:@"%@%@%@",
- [[[self delegate] allSystemDatabaseNames] componentsJoinedByString:SPUniqueSchemaDelimiter],
- SPUniqueSchemaDelimiter,
- [[[self delegate] allDatabaseNames] componentsJoinedByString:SPUniqueSchemaDelimiter]]
- componentsSeparatedByString:SPUniqueSchemaDelimiter];
-
- for(id db in dbs) {
- NSString *dbid = [NSString stringWithFormat:@"%@%@%@", connectionID, SPUniqueSchemaDelimiter, db];
- if(![[structure valueForKey:connectionID] objectForKey:dbid]) {
-// NSLog(@"added db %@", db);
- removeAddFlag = YES;
- [[structure valueForKey:connectionID] setObject:db forKey:dbid];
- [allKeysofDbStructure addObject:dbid];
- }
+ // Updating the global variables and make sure that no request reads these global variables
+ // while updating
+ [self performSelectorOnMainThread:@selector(lockQuerying) withObject:nil waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(updateGlobalVariablesWith:) withObject:[NSDictionary dictionaryWithObjectsAndKeys:[queriedStructure retain], @"structure", [queriedStructureKeys retain], @"keys", nil] waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(unlockQuerying) withObject:nil waitUntilDone:YES];
+ if(removeAddFlag)
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
+ [queryPool release];
+ return;
}
-
- // Remove deleted databases in structure and keys in allKeysofDbStructure
- // Use a dict to avoid <NSCFDictionary> was mutated while being enumerated. while iterating via allKeys
- NSArray *keys = [[NSDictionary dictionaryWithDictionary:[structure valueForKey:connectionID]] allKeys];
- for(id key in keys) {
- NSString *db = [[key componentsSeparatedByString:SPUniqueSchemaDelimiter] objectAtIndex:1];
- if(![dbs containsObject:db]) {
-// NSLog(@"removed db %@", db);
- removeAddFlag = YES;
- if([[structure valueForKey:connectionID] isKindOfClass:[NSDictionary class]]) {
- [[structure valueForKey:connectionID] removeObjectForKey:key];
- }
- NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT SELF BEGINSWITH %@", [NSString stringWithFormat:@"%@%@", key, SPUniqueSchemaDelimiter]];
- [allKeysofDbStructure filterUsingPredicate:predicate];
- [allKeysofDbStructure removeObject:key];
- }
+ }
+ if([currentDatabase isEqualToString:@"information_schema"]) {
+ if([queriedStructure objectForKey:db_id] && [[queriedStructure objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
+ // Updating the global variables and make sure that no request reads these global variables
+ // while updating
+ [self performSelectorOnMainThread:@selector(lockQuerying) withObject:nil waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(updateGlobalVariablesWith:) withObject:[NSDictionary dictionaryWithObjectsAndKeys:[queriedStructure retain], @"structure", [queriedStructureKeys retain], @"keys", nil] waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(unlockQuerying) withObject:nil waitUntilDone:YES];
+ if(removeAddFlag)
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
+ [queryPool release];
+ return;
}
+ }
- NSString *currentDatabase = nil;
- if([delegate respondsToSelector:@selector(database)])
- currentDatabase = [[self delegate] database];
-
- if(!currentDatabase || (currentDatabase && ![currentDatabase length])) {
-// NSLog(@"no db - return");
- isQueryingDbStructure = NO;
+ if(userInfo == nil || ![userInfo objectForKey:@"forceUpdate"]) {
+ if([queriedStructure objectForKey:db_id] && [[queriedStructure objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
+ // Updating the global variables and make sure that no request reads these global variables
+ // while updating
+ [self performSelectorOnMainThread:@selector(lockQuerying) withObject:nil waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(updateGlobalVariablesWith:) withObject:[NSDictionary dictionaryWithObjectsAndKeys:[queriedStructure retain], @"structure", [queriedStructureKeys retain], @"keys", nil] waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(unlockQuerying) withObject:nil waitUntilDone:YES];
if(removeAddFlag)
[[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
[queryPool release];
return;
}
+ }
- NSString *db_id = [NSString stringWithFormat:@"%@%@%@", connectionID, SPUniqueSchemaDelimiter, currentDatabase];
+ NSArray *tables = [[[self delegate] valueForKeyPath:@"tablesListInstance"] allTableNames];
+ NSArray *tableviews = [[[self delegate] valueForKeyPath:@"tablesListInstance"] allViewNames];
- // mysql and information_schema's schema will never change thus query data only once
- if([currentDatabase isEqualToString:@"mysql"]) {
- if([[structure valueForKey:connectionID] objectForKey:db_id] && [[[structure valueForKey:connectionID] objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
-// NSLog(@"mysql was parsed - return");
- if(removeAddFlag)
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
- [queryPool release];
- return;
- }
- }
- if([currentDatabase isEqualToString:@"information_schema"]) {
- if([[structure valueForKey:connectionID] objectForKey:db_id] && [[[structure valueForKey:connectionID] objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
-// NSLog(@"information_schema was parsed - return");
- if(removeAddFlag)
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
- [queryPool release];
- return;
- }
- }
+ NSUInteger numberOfTables = 0;
+ if(tables && [tables count]) numberOfTables += [tables count];
+ if(tableviews && [tableviews count]) numberOfTables += [tableviews count];
- if(userInfo == nil || ![userInfo objectForKey:@"forceUpdate"]) {
- if([[structure valueForKey:connectionID] objectForKey:db_id] && [[[structure valueForKey:connectionID] objectForKey:db_id] isKindOfClass:[NSDictionary class]]) {
-// NSLog(@"no forceUpdate - return");
- isQueryingDbStructure = NO;
- if(removeAddFlag)
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
- [queryPool release];
- return;
- }
- }
+ // For future usage
+ NSString *affectedItem = nil;
+ NSInteger affectedItemType = -1;
+ if(userInfo && [userInfo objectForKey:@"affectedItem"]) {
+ affectedItem = [userInfo objectForKey:@"affectedItem"];
+ if([userInfo objectForKey:@"affectedItemType"])
+ affectedItemType = [[userInfo objectForKey:@"affectedItemType"] intValue];
+ else
+ affectedItem = nil;
+ }
- NSArray *tables = [[[self delegate] valueForKeyPath:@"tablesListInstance"] allTableNames];
- NSArray *tableviews = [[[self delegate] valueForKeyPath:@"tablesListInstance"] allViewNames];
-
- NSUInteger numberOfTables = 0;
- if(tables && [tables count]) numberOfTables += [tables count];
- if(tableviews && [tableviews count]) numberOfTables += [tableviews count];
-
- // For future usage
- NSString *affectedItem = nil;
- NSInteger affectedItemType = -1;
- if(userInfo && [userInfo objectForKey:@"affectedItem"]) {
- affectedItem = [userInfo objectForKey:@"affectedItem"];
- if([userInfo objectForKey:@"affectedItemType"])
- affectedItemType = [[userInfo objectForKey:@"affectedItemType"] intValue];
- else
- affectedItem = nil;
- }
+ // Delete all stored data for to be queried db
+ if([queriedStructure isKindOfClass:[NSDictionary class]])
+ [queriedStructure removeObjectForKey:db_id];
+ NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT SELF BEGINSWITH %@", [NSString stringWithFormat:@"%@%@", db_id, SPUniqueSchemaDelimiter]];
+ [queriedStructureKeys filterUsingPredicate:predicate];
+ [queriedStructureKeys removeObject:db_id];
- // Delete all stored data for to be queried db
- if([[structure valueForKey:connectionID] isKindOfClass:[NSDictionary class]])
- [[structure valueForKey:connectionID] removeObjectForKey:db_id];
- NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT SELF BEGINSWITH %@", [NSString stringWithFormat:@"%@%@", db_id, SPUniqueSchemaDelimiter]];
- [allKeysofDbStructure filterUsingPredicate:predicate];
- [allKeysofDbStructure removeObject:db_id];
- // Re-add currentDatabase in case that structure querying will fail
- [[structure valueForKey:connectionID] setObject:currentDatabase forKey:db_id];
+ // Re-add currentDatabase in case that structure querying will fail
+ [queriedStructure setObject:currentDatabase forKey:db_id];
- NSString *currentDatabaseEscaped = [currentDatabase stringByReplacingOccurrencesOfString:@"`" withString:@"``"];
+ NSString *currentDatabaseEscaped = [currentDatabase stringByReplacingOccurrencesOfString:@"`" withString:@"``"];
- MYSQL *structConnection = mysql_init(NULL);
- if (structConnection) {
- const char *theLogin = [self cStringFromString:connectionLogin];
- const char *theHost;
- const char *thePass = NULL;
- const char *theSocket;
- void *connectionSetupStatus;
+ MYSQL *structConnection = mysql_init(NULL);
+ if (structConnection) {
+ const char *theLogin = [self cStringFromString:connectionLogin];
+ const char *theHost;
+ const char *thePass = NULL;
+ const char *theSocket;
+ void *connectionSetupStatus;
- mysql_options(structConnection, MYSQL_OPT_CONNECT_TIMEOUT, (const void *)&connectionTimeout);
+ mysql_options(structConnection, MYSQL_OPT_CONNECT_TIMEOUT, (const void *)&connectionTimeout);
- // Set up the host, socket and password as per the connect method
- if (!connectionHost || ![connectionHost length]) {
- theHost = NULL;
- } else {
- theHost = [self cStringFromString:connectionHost];
- }
- if (connectionSocket == nil || ![connectionSocket length]) {
- theSocket = kMCPConnectionDefaultSocket;
- } else {
- theSocket = [self cStringFromString:connectionSocket];
- }
- if (!connectionPassword) {
- if (delegate && [delegate respondsToSelector:@selector(keychainPasswordForConnection:)]) {
- thePass = [self cStringFromString:[delegate keychainPasswordForConnection:self]];
- }
- } else {
- thePass = [self cStringFromString:connectionPassword];
+ // Set up the host, socket and password as per the connect method
+ if (!connectionHost || ![connectionHost length]) {
+ theHost = NULL;
+ } else {
+ theHost = [self cStringFromString:connectionHost];
+ }
+ if (connectionSocket == nil || ![connectionSocket length]) {
+ theSocket = kMCPConnectionDefaultSocket;
+ } else {
+ theSocket = [self cStringFromString:connectionSocket];
+ }
+ if (!connectionPassword) {
+ if (delegate && [delegate respondsToSelector:@selector(keychainPasswordForConnection:)]) {
+ thePass = [self cStringFromString:[delegate keychainPasswordForConnection:self]];
}
+ } else {
+ thePass = [self cStringFromString:connectionPassword];
+ }
- // Connect
- connectionSetupStatus = mysql_real_connect(structConnection, theHost, theLogin, thePass, NULL, connectionPort, theSocket, mConnectionFlags);
- thePass = NULL;
- if (connectionSetupStatus) {
- MYSQL_RES *theResult;
- MYSQL_ROW row;
+ // Connect
+ connectionSetupStatus = mysql_real_connect(structConnection, theHost, theLogin, thePass, NULL, connectionPort, theSocket, mConnectionFlags);
+ thePass = NULL;
+ if (connectionSetupStatus) {
+ MYSQL_RES *theResult;
+ MYSQL_ROW row;
- NSStringEncoding theConnectionEncoding = [MCPConnection encodingForMySQLEncoding:mysql_character_set_name(structConnection)];
- NSString *charset;
+ NSStringEncoding theConnectionEncoding = [MCPConnection encodingForMySQLEncoding:mysql_character_set_name(structConnection)];
+ NSString *charset;
- if(numberOfTables > 2000) {
- NSLog(@"%ld items in database %@. Only 2000 items can be parsed. Stopped parsing.", numberOfTables, currentDatabase);
- isQueryingDbStructure = NO;
- [queryPool release];
- return;
- }
+ if(numberOfTables > 2000) {
+ NSLog(@"%ld items in database %@. Only 2000 items can be parsed. Stopped parsing.", numberOfTables, currentDatabase);
+ [queryPool release];
+ return;
+ }
+
+ [self performSelectorOnMainThread:@selector(incrementQueryingDbStructure) withObject:nil waitUntilDone:YES];
-// NSLog(@"queryDbStructureWithUserInfo started");
+ NSUInteger uniqueCounter = 0; // used to make field data unique
- NSUInteger uniqueCounter = 0; // used to make field data unique
+ NSString *query = @"SET NAMES 'utf8'";
+ NSData *encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
+ const char *queryCString = [encodedQueryData bytes];
+ unsigned long queryCStringLength = [encodedQueryData length];
+ if (mysql_real_query(structConnection, queryCString, queryCStringLength) != 0) {
+ ;
+ }
- NSString *query = @"SET NAMES 'utf8'";
+ [queriedStructureKeys addObject:db_id];
+
+ // Query all tables
+ for(NSString* table in tables) {
+ NSString *query = [NSString stringWithFormat:@"SHOW FULL COLUMNS FROM `%@` FROM `%@`",
+ [table stringByReplacingOccurrencesOfString:@"`" withString:@"``"],
+ currentDatabaseEscaped];
NSData *encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
const char *queryCString = [encodedQueryData bytes];
unsigned long queryCStringLength = [encodedQueryData length];
if (mysql_real_query(structConnection, queryCString, queryCStringLength) != 0) {
- ;
+ // NSLog(@"error %@", table);
+ continue;
+ }
+ theResult = mysql_use_result(structConnection);
+
+ NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, table];
+
+ [queriedStructureKeys addObject:table_id];
+
+ while(row = mysql_fetch_row(theResult)) {
+ NSString *field = [self stringWithUTF8CString:row[0]];
+ NSString *type = [self stringWithUTF8CString:row[1]];
+ NSString *type_display = [type stringByReplacingOccurrencesOfRegex:@"\\(.*?,.*?\\)" withString:@"(…)"];
+ NSString *coll = [self stringWithUTF8CString:row[2]];
+ NSString *isnull = [self stringWithUTF8CString:row[3]];
+ NSString *key = [self stringWithUTF8CString:row[4]];
+ NSString *def = [self stringWithUTF8CString:row[5]];
+ NSString *extra = [self stringWithUTF8CString:row[6]];
+ NSString *priv = [self stringWithUTF8CString:row[7]];
+ NSString *comment = [self stringWithUTF8CString:row[8]];
+ NSString *field_id = [NSString stringWithFormat:@"%@%@%@", table_id, SPUniqueSchemaDelimiter, field];
+ NSArray *a = [coll componentsSeparatedByString:@"_"];
+ charset = ([a count]) ? [a objectAtIndex:0] : @"";
+
+ [queriedStructureKeys addObject:field_id];
+
+ if(![queriedStructure valueForKey:db_id] || [[queriedStructure valueForKey:db_id] isKindOfClass:[NSString class]] )
+ [queriedStructure setObject:[NSMutableDictionary dictionary] forKey:db_id];
+
+ if(![[queriedStructure valueForKey:db_id] valueForKey:table_id])
+ [[queriedStructure valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
+
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:[NSArray arrayWithObjects:type, def, isnull, charset, coll, key, extra, priv, comment, type_display, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:@"0" forKey:@" struct_type "];
+ uniqueCounter++;
+ }
+ mysql_free_result(theResult);
+ usleep(10);
+ }
+ // Query all views
+ for(NSString* table in tableviews) {
+ NSString *query = [NSString stringWithFormat:@"SHOW FULL COLUMNS FROM `%@` FROM `%@`",
+ [table stringByReplacingOccurrencesOfString:@"`" withString:@"``"],
+ currentDatabaseEscaped];
+ NSData *encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
+ const char *queryCString = [encodedQueryData bytes];
+ unsigned long queryCStringLength = [encodedQueryData length];
+ if (mysql_real_query(structConnection, queryCString, queryCStringLength) != 0) {
+ // NSLog(@"error %@", table);
+ continue;
}
- [allKeysofDbStructure addObject:db_id];
-
- // Query all tables
- for(NSString* table in tables) {
- NSString *query = [NSString stringWithFormat:@"SHOW FULL COLUMNS FROM `%@` FROM `%@`",
- [table stringByReplacingOccurrencesOfString:@"`" withString:@"``"],
- currentDatabaseEscaped];
- NSData *encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
- const char *queryCString = [encodedQueryData bytes];
- unsigned long queryCStringLength = [encodedQueryData length];
- if (mysql_real_query(structConnection, queryCString, queryCStringLength) != 0) {
- // NSLog(@"error %@", table);
- continue;
- }
- theResult = mysql_use_result(structConnection);
-
- NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, table];
+ theResult = mysql_use_result(structConnection);
+ NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, table];
- [allKeysofDbStructure addObject:table_id];
+ [queriedStructureKeys addObject:table_id];
- while(row = mysql_fetch_row(theResult)) {
- NSString *field = [self stringWithUTF8CString:row[0]];
- NSString *type = [self stringWithUTF8CString:row[1]];
- NSString *type_display = [type stringByReplacingOccurrencesOfRegex:@"\\(.*?,.*?\\)" withString:@"(…)"];
- NSString *coll = [self stringWithUTF8CString:row[2]];
- NSString *isnull = [self stringWithUTF8CString:row[3]];
- NSString *key = [self stringWithUTF8CString:row[4]];
- NSString *def = [self stringWithUTF8CString:row[5]];
- NSString *extra = [self stringWithUTF8CString:row[6]];
- NSString *priv = [self stringWithUTF8CString:row[7]];
- NSString *comment = [self stringWithUTF8CString:row[8]];
- NSString *field_id = [NSString stringWithFormat:@"%@%@%@", table_id, SPUniqueSchemaDelimiter, field];
- NSArray *a = [coll componentsSeparatedByString:@"_"];
- charset = ([a count]) ? [a objectAtIndex:0] : @"";
-
- [allKeysofDbStructure addObject:field_id];
-
- if(![[structure valueForKey:connectionID] valueForKey:db_id] || [[[structure valueForKey:connectionID] valueForKey:db_id] isKindOfClass:[NSString class]] )
- [[structure valueForKey:connectionID] setObject:[NSMutableDictionary dictionary] forKey:db_id];
-
- if(![[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id])
- [[[structure valueForKey:connectionID] valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
-
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:[NSArray arrayWithObjects:type, def, isnull, charset, coll, key, extra, priv, comment, type_display, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:@"0" forKey:@" struct_type "];
- uniqueCounter++;
- }
- mysql_free_result(theResult);
- usleep(10);
+ NSString *charset;
+ while(row = mysql_fetch_row(theResult)) {
+ NSString *field = [self stringWithUTF8CString:row[0]];
+ NSString *type = [self stringWithUTF8CString:row[1]];
+ NSString *type_display = [type stringByReplacingOccurrencesOfRegex:@"\\(.*?,.*?\\)" withString:@"(…)"];
+ NSString *coll = [self stringWithUTF8CString:row[2]];
+ NSString *isnull = [self stringWithUTF8CString:row[3]];
+ NSString *key = [self stringWithUTF8CString:row[4]];
+ NSString *def = [self stringWithUTF8CString:row[5]];
+ NSString *extra = [self stringWithUTF8CString:row[6]];
+ NSString *priv = [self stringWithUTF8CString:row[7]];
+ NSString *comment = [self stringWithUTF8CString:row[8]];
+ NSString *field_id = [NSString stringWithFormat:@"%@%@%@", table_id, SPUniqueSchemaDelimiter, field];
+ NSArray *a = [coll componentsSeparatedByString:@"_"];
+ charset = ([a count]) ? [a objectAtIndex:0] : @"";
+
+ [queriedStructureKeys addObject:field_id];
+
+ if(![queriedStructure valueForKey:db_id] || [[[queriedStructure valueForKey:connectionID] valueForKey:db_id] isKindOfClass:[NSString class]] )
+ [queriedStructure setObject:[NSMutableDictionary dictionary] forKey:db_id];
+
+ if(![[queriedStructure valueForKey:db_id] valueForKey:table_id])
+ [[queriedStructure valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
+
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:[NSArray arrayWithObjects:type, def, isnull, charset, coll, key, extra, priv, comment, type_display, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:@"1" forKey:@" struct_type "];
+ uniqueCounter++;
}
- // Query all views
- for(NSString* table in tableviews) {
- NSString *query = [NSString stringWithFormat:@"SHOW FULL COLUMNS FROM `%@` FROM `%@`",
- [table stringByReplacingOccurrencesOfString:@"`" withString:@"``"],
- currentDatabaseEscaped];
- NSData *encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
- const char *queryCString = [encodedQueryData bytes];
- unsigned long queryCStringLength = [encodedQueryData length];
- if (mysql_real_query(structConnection, queryCString, queryCStringLength) != 0) {
- // NSLog(@"error %@", table);
- continue;
- }
+ mysql_free_result(theResult);
+ usleep(10);
+ }
+ if([self serverMajorVersion] >= 5) {
+ // Query for procedures and functions
+ query = [NSString stringWithFormat:@"SELECT * FROM `information_schema`.`ROUTINES` WHERE `information_schema`.`ROUTINES`.`ROUTINE_SCHEMA` = '%@'", [currentDatabase stringByReplacingOccurrencesOfString:@"'" withString:@"\'"]];
+ encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
+ queryCString = [encodedQueryData bytes];
+ queryCStringLength = [encodedQueryData length];
+ if (mysql_real_query(structConnection, queryCString, queryCStringLength) == 0) {
theResult = mysql_use_result(structConnection);
- NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, table];
-
- [allKeysofDbStructure addObject:table_id];
-
- NSString *charset;
+ NSUInteger numberOfFields = mysql_num_fields(theResult);
while(row = mysql_fetch_row(theResult)) {
NSString *field = [self stringWithUTF8CString:row[0]];
- NSString *type = [self stringWithUTF8CString:row[1]];
- NSString *type_display = [type stringByReplacingOccurrencesOfRegex:@"\\(.*?,.*?\\)" withString:@"(…)"];
- NSString *coll = [self stringWithUTF8CString:row[2]];
- NSString *isnull = [self stringWithUTF8CString:row[3]];
- NSString *key = [self stringWithUTF8CString:row[4]];
- NSString *def = [self stringWithUTF8CString:row[5]];
- NSString *extra = [self stringWithUTF8CString:row[6]];
- NSString *priv = [self stringWithUTF8CString:row[7]];
- NSString *comment = [self stringWithUTF8CString:row[8]];
+ NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, field];
NSString *field_id = [NSString stringWithFormat:@"%@%@%@", table_id, SPUniqueSchemaDelimiter, field];
- NSArray *a = [coll componentsSeparatedByString:@"_"];
- charset = ([a count]) ? [a objectAtIndex:0] : @"";
-
- [allKeysofDbStructure addObject:field_id];
-
- if(![[structure valueForKey:connectionID] valueForKey:db_id] || [[[structure valueForKey:connectionID] valueForKey:db_id] isKindOfClass:[NSString class]] )
- [[structure valueForKey:connectionID] setObject:[NSMutableDictionary dictionary] forKey:db_id];
-
- if(![[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id])
- [[[structure valueForKey:connectionID] valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
-
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:[NSArray arrayWithObjects:type, def, isnull, charset, coll, key, extra, priv, comment, type_display, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:@"1" forKey:@" struct_type "];
+ NSString *type = ([[self stringWithUTF8CString:row[4]] isEqualToString:@"FUNCTION"]) ? @"3" : @"2";
+ NSString *dtd = [self stringWithUTF8CString:row[5]];
+ NSString *det = [self stringWithUTF8CString:row[11]];
+ NSString *access = [self stringWithUTF8CString:row[12]];
+ NSString *security_type = [self stringWithUTF8CString:row[14]];
+ NSString *definer = [self stringWithUTF8CString:row[19]];
+
+ [queriedStructureKeys addObject:table_id];
+ [queriedStructureKeys addObject:field_id];
+
+ if(![queriedStructure valueForKey:db_id] || [[queriedStructure valueForKey:db_id] isKindOfClass:[NSString class]] )
+ [queriedStructure setObject:[NSMutableDictionary dictionary] forKey:db_id];
+
+ if(![[queriedStructure valueForKey:db_id] valueForKey:table_id])
+ [[queriedStructure valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
+
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:
+ [NSArray arrayWithObjects:dtd, access, det, security_type, definer, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
+ [[[queriedStructure valueForKey:db_id] valueForKey:table_id] setObject:type forKey:@" struct_type "];
uniqueCounter++;
}
mysql_free_result(theResult);
- usleep(10);
}
+ }
- if([self serverMajorVersion] >= 5) {
- // Query for procedures and functions
- query = [NSString stringWithFormat:@"SELECT * FROM `information_schema`.`ROUTINES` WHERE `information_schema`.`ROUTINES`.`ROUTINE_SCHEMA` = '%@'", [currentDatabase stringByReplacingOccurrencesOfString:@"'" withString:@"\'"]];
- encodedQueryData = NSStringDataUsingLossyEncoding(query, theConnectionEncoding, 1);
- queryCString = [encodedQueryData bytes];
- queryCStringLength = [encodedQueryData length];
- if (mysql_real_query(structConnection, queryCString, queryCStringLength) == 0) {
- theResult = mysql_use_result(structConnection);
- NSUInteger numberOfFields = mysql_num_fields(theResult);
- while(row = mysql_fetch_row(theResult)) {
- NSString *field = [self stringWithUTF8CString:row[0]];
- NSString *table_id = [NSString stringWithFormat:@"%@%@%@", db_id, SPUniqueSchemaDelimiter, field];
- NSString *field_id = [NSString stringWithFormat:@"%@%@%@", table_id, SPUniqueSchemaDelimiter, field];
- NSString *type = ([[self stringWithUTF8CString:row[4]] isEqualToString:@"FUNCTION"]) ? @"3" : @"2";
- NSString *dtd = [self stringWithUTF8CString:row[5]];
- NSString *det = [self stringWithUTF8CString:row[11]];
- NSString *access = [self stringWithUTF8CString:row[12]];
- NSString *security_type = [self stringWithUTF8CString:row[14]];
- NSString *definer = [self stringWithUTF8CString:row[19]];
-
- [allKeysofDbStructure addObject:table_id];
- [allKeysofDbStructure addObject:field_id];
-
- if(![[structure valueForKey:connectionID] valueForKey:db_id] || [[[structure valueForKey:connectionID] valueForKey:db_id] isKindOfClass:[NSString class]] )
- [[structure valueForKey:connectionID] setObject:[NSMutableDictionary dictionary] forKey:db_id];
-
- if(![[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id])
- [[[structure valueForKey:connectionID] valueForKey:db_id] setObject:[NSMutableDictionary dictionary] forKey:table_id];
-
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:
- [NSArray arrayWithObjects:dtd, access, det, security_type, definer, [NSNumber numberWithUnsignedLongLong:uniqueCounter], nil] forKey:field_id];
- [[[[structure valueForKey:connectionID] valueForKey:db_id] valueForKey:table_id] setObject:type forKey:@" struct_type "];
- uniqueCounter++;
- }
- mysql_free_result(theResult);
- }
- }
+ // Updating the global variables and make sure that no request reads these global variables
+ // while updating
+ [self performSelectorOnMainThread:@selector(lockQuerying) withObject:nil waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(updateGlobalVariablesWith:) withObject:[NSDictionary dictionaryWithObjectsAndKeys:[queriedStructure retain], @"structure", [queriedStructureKeys retain], @"keys", nil] waitUntilDone:YES];
+ [self performSelectorOnMainThread:@selector(unlockQuerying) withObject:nil waitUntilDone:YES];
-// NSLog(@"queryDbStructureWithUserInfo done");
- // Notify that the structure querying has been performed
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
+ mysql_close(structConnection);
- mysql_close(structConnection);
- }
+ // Notify that the structure querying has been performed
+ [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
+
+ [self performSelectorOnMainThread:@selector(decrementQueryingDbStructure) withObject:nil waitUntilDone:YES];
}
- } else {
- // Notify that the structure querying has been performed
- [[NSNotificationCenter defaultCenter] postNotificationName:@"SPDBStructureWasUpdated" object:delegate];
}
-
- isQueryingDbStructure = NO;
+
[queryPool release];
}
+/*
+ * Update global variables on main thread to avoid accessing from different threads
+ */
+- (void)updateGlobalVariablesWith:(NSDictionary*)object
+{
+ NSString *connectionID = [[self delegate] connectionID];
+ if([connectionID length] < 2) return;
+ if(![structure valueForKey:connectionID])
+ [structure setObject:[NSMutableDictionary dictionary] forKey:connectionID];
+ [structure setObject:[[object objectForKey:@"structure"] retain] forKey:connectionID];
+ [allKeysofDbStructure setArray:[[object objectForKey:@"keys"] retain]];
+ usleep(100);
+}
+
+- (void)incrementQueryingDbStructure
+{
+ isQueryingDbStructure++;
+}
+
+- (void)decrementQueryingDbStructure
+{
+ isQueryingDbStructure--;
+ if(isQueryingDbStructure < 0) isQueryingDbStructure = 0;
+}
+
+- (BOOL)isQueryingDatabaseStructure
+{
+ return (isQueryingDbStructure > 0) ? YES : NO;
+}
+
+- (void)lockQuerying
+{
+ lockQuerying = YES;
+}
+
+- (void)unlockQuerying
+{
+ lockQuerying = NO;
+ usleep(50000);
+}
/**
* Returns a dict containing the structure of all available databases
*/
- (NSDictionary *)getDbStructure
{
- return [[structure copy] autorelease];
+ if(lockQuerying) return nil;
+ NSDictionary *d = [NSDictionary dictionaryWithDictionary:structure];
+ return d;
}
/**
@@ -2227,22 +2279,8 @@ void performThreadedKeepAlive(void *ptr)
*/
- (NSArray *)getAllKeysOfDbStructure
{
- NSArray *r = nil;
- @try
- {
- r = [NSArray arrayWithArray:allKeysofDbStructure];
- }
- @catch(id ae)
- {
- @try
- {
- r = [NSArray arrayWithArray:allKeysofDbStructure];
- }
- @catch(id ae)
- {
- return nil;
- }
- }
+ if(lockQuerying) return nil;
+ NSArray *r = [NSArray arrayWithArray:allKeysofDbStructure];
return r;
}