Add a bit of debug info in Connection pinging

Frameworks/SPMySQLFramework/Source/SPMySQLConnection Categories/Ping & KeepAlive.h

@@ -34,6 +34,7 @@ typedef struct {
	MYSQL	*mySQLConnection;
	volatile BOOL *keepAlivePingThreadActivePointer;
	volatile BOOL *keepAliveLastPingSuccessPointer;
	void *parentId;
} SPMySQLConnectionPingDetails;

@interface SPMySQLConnection (Ping_and_KeepAlive)

Frameworks/SPMySQLFramework/Source/SPMySQLConnection Categories/Ping & KeepAlive.m

@@ -33,6 +33,7 @@
#import "SPMySQL Private APIs.h"
#import "Locking.h"
#import <pthread.h>
#include <stdio.h>

@implementation SPMySQLConnection (Ping_and_KeepAlive)

@@ -85,7 +86,7 @@ - (void)_threadedKeepAlive
	}
	
	keepAliveThread = [NSThread currentThread];
	[keepAliveThread setName:@"SPMySQL connection keepalive monitor thread"];
	[keepAliveThread setName:[NSString stringWithFormat:@"SPMySQL connection keepalive monitor thread (id=%p)", self]];

	// If the maximum number of ping failures has been reached, determine whether to reconnect.
	if (keepAliveLastPingBlocked || keepAlivePingFailures >= 3) {
@@ -158,6 +159,7 @@ - (BOOL)_pingConnectionUsingLoopDelay:(NSUInteger)loopDelay
	pingDetails->mySQLConnection = mySQLConnection;
	pingDetails->keepAliveLastPingSuccessPointer = &keepAliveLastPingSuccess;
	pingDetails->keepAlivePingThreadActivePointer = &keepAlivePingThreadActive;
	pingDetails->parentId = self;

	// Create a pthread for the ping
	pthread_t keepAlivePingThread_t;
@@ -216,9 +218,11 @@ - (BOOL)_pingConnectionUsingLoopDelay:(NSUInteger)loopDelay
 */
void _backgroundPingTask(void *ptr)
{
	pthread_setname_np("SPMySQL _backgroundPingTask() worker thread");
	
	SPMySQLConnectionPingDetails *pingDetails = (SPMySQLConnectionPingDetails *)ptr;
	
	char threadNameBuf[80];
	snprintf(threadNameBuf, sizeof(threadNameBuf), "SPMySQL _backgroundPingTask() worker thread (id=%p)", pingDetails->parentId);
	pthread_setname_np(threadNameBuf);

	// Set up a cleanup routine
	pthread_cleanup_push(_pingThreadCleanup, pingDetails);