YYCache的YYKVStorage类中的有sqlite3_finalize(stmt)调用时报错一劳永逸无损修复
.h
objectivec
#import "YYKVStorage.h"
NS_ASSUME_NONNULL_BEGIN
@interface YYKVStorage (Fix)
@property (nonatomic, readonly) NSString *path; ///< The path of this storage.
@property (nonatomic, readonly) YYKVStorageType type; ///< The type of this storage.
@property (nonatomic) BOOL errorLogsEnabled; ///< Set `YES` to enable error logs for debug.
@end
NS_ASSUME_NONNULL_END
.m
objectivec
#import "YYKVStorage+Fix.h"
#import <UIKit/UIKit.h>
#import <time.h>
#if __has_include(<sqlite3.h>)
#import <sqlite3.h>
#else
#import "sqlite3.h"
#endif
@interface YYKVStorage ()
{
dispatch_queue_t _trashQueue;
NSString *_path;
NSString *_dbPath;
NSString *_dataPath;
NSString *_trashPath;
sqlite3 *_db;
CFMutableDictionaryRef _dbStmtCache;
NSTimeInterval _dbLastOpenErrorTime;
NSUInteger _dbOpenErrorCount;
}
@end
@implementation YYKVStorage (Fix)
#pragma mark - db
- (BOOL)_dbOpen {
if (_db) return YES;
int result = sqlite3_open(_dbPath.UTF8String, &_db);
if (result == SQLITE_OK) {
CFDictionaryKeyCallBacks keyCallbacks = kCFCopyStringDictionaryKeyCallBacks;
CFDictionaryValueCallBacks valueCallbacks = {0};
_dbStmtCache = CFDictionaryCreateMutable(CFAllocatorGetDefault(), 0, &keyCallbacks, &valueCallbacks);
_dbLastOpenErrorTime = 0;
_dbOpenErrorCount = 0;
return YES;
} else {
_db = NULL;
if (_dbStmtCache) {
CFIndex size = CFDictionaryGetCount(_dbStmtCache);
CFTypeRef *valuesRef = (CFTypeRef *)malloc(size * sizeof(CFTypeRef));
CFDictionaryGetKeysAndValues(_dbStmtCache, NULL, (const void **)valuesRef);
const sqlite3_stmt **stmts = (const sqlite3_stmt **)valuesRef;
for (CFIndex i = 0; i < size; i ++) {
sqlite3_stmt *stmt = stmts[i];
sqlite3_finalize(stmt);
}
free(valuesRef);
CFRelease(_dbStmtCache);
}
_dbStmtCache = NULL;
_dbLastOpenErrorTime = CACurrentMediaTime();
_dbOpenErrorCount++;
// if (_errorLogsEnabled) {
// NSLog(@"%s line:%d sqlite open failed (%d).", __FUNCTION__, __LINE__, result);
// }
return NO;
}
}
- (BOOL)_dbClose {
if (!_db) return YES;
int result = 0;
BOOL retry = NO;
BOOL stmtFinalized = NO;
if (_dbStmtCache) {
CFIndex size = CFDictionaryGetCount(_dbStmtCache);
CFTypeRef *valuesRef = (CFTypeRef *)malloc(size * sizeof(CFTypeRef));
CFDictionaryGetKeysAndValues(_dbStmtCache, NULL, (const void **)valuesRef);
const sqlite3_stmt **stmts = (const sqlite3_stmt **)valuesRef;
for (CFIndex i = 0; i < size; i ++) {
sqlite3_stmt *stmt = stmts[i];
sqlite3_finalize(stmt);
}
free(valuesRef);
CFRelease(_dbStmtCache);
}
_dbStmtCache = NULL;
do {
retry = NO;
result = sqlite3_close(_db);
if (result == SQLITE_BUSY || result == SQLITE_LOCKED) {
if (!stmtFinalized) {
stmtFinalized = YES;
sqlite3_stmt *stmt;
while ((stmt = sqlite3_next_stmt(_db, nil)) != 0) {
sqlite3_finalize(stmt);
retry = YES;
}
}
} else if (result != SQLITE_OK) {
// if (_errorLogsEnabled) {
// NSLog(@"%s line:%d sqlite close failed (%d).", __FUNCTION__, __LINE__, result);
// }
}
} while (retry);
_db = NULL;
return YES;
}
@end