fix(sqlite): centralize database connection management

- Add proper connection state tracking (disconnected/connecting/connected/error)
- Implement connection promise to prevent race conditions
- Centralize connection lifecycle in getConnection() and releaseConnection()
- Remove redundant queue operations
- Improve error handling and state management

This fixes race conditions where multiple components (main process, renderer,
platform service) were interfering with each other's database operations.
Connection state is now properly tracked and operations are queued correctly.

Fixes: #<issue_number> (if applicable)
This commit is contained in:
Matthew Raymer
2025-06-05 07:37:44 +00:00
parent 0b4e885edd
commit e5dffc30ff

View File

@@ -90,14 +90,19 @@ export class ElectronPlatformService implements PlatformService {
private dbFatalError = false;
private sqliteReadyPromise: Promise<void> | null = null;
private initializationTimeout: NodeJS.Timeout | null = null;
private isConnectionOpen = false;
private operationQueue: Promise<unknown> = Promise.resolve();
private queueLock = false;
private connectionState: 'disconnected' | 'connecting' | 'connected' | 'error' = 'disconnected';
private connectionPromise: Promise<void> | null = null;
// SQLite initialization configuration
private static readonly SQLITE_CONFIG = {
INITIALIZATION: {
TIMEOUT_MS: 1000, // with retries, stay under 5 seconds
TIMEOUT_MS: 5000, // Increase timeout to 5 seconds
RETRY_ATTEMPTS: 3,
RETRY_DELAY_MS: 1000,
READY_CHECK_INTERVAL_MS: 100, // How often to check if SQLite is already ready
READY_CHECK_INTERVAL_MS: 100,
},
};
@@ -119,25 +124,18 @@ export class ElectronPlatformService implements PlatformService {
}
// Check if SQLite is already available
const isAvailable = await window.electron.ipcRenderer.invoke(
"sqlite-is-available",
);
const isAvailable = await window.electron.ipcRenderer.invoke("sqlite-is-available");
if (!isAvailable) {
return false;
}
// Check if database is already open
const isOpen = await window.electron.ipcRenderer.invoke(
"sqlite-is-db-open",
{
database: this.dbName,
},
);
const isOpen = await window.electron.ipcRenderer.invoke("sqlite-is-db-open", {
database: this.dbName,
});
if (isOpen) {
logger.info(
"[ElectronPlatformService] SQLite is already ready and database is open",
);
logger.info("[ElectronPlatformService] SQLite is already ready and database is open");
sqliteInitState.isReady = true;
sqliteInitState.isInitializing = false;
sqliteInitState.lastReadyCheck = Date.now();
@@ -146,16 +144,13 @@ export class ElectronPlatformService implements PlatformService {
return false;
} catch (error) {
logger.warn(
"[ElectronPlatformService] Error checking existing readiness:",
error,
);
logger.warn("[ElectronPlatformService] Error checking existing readiness:", error);
return false;
}
};
const attemptInitialization = async () => {
cleanup(); // Clear any existing timeout
cleanup();
// Check if SQLite is already ready
if (await checkExistingReadiness()) {
@@ -166,14 +161,8 @@ export class ElectronPlatformService implements PlatformService {
// If someone else is initializing, wait for them
if (sqliteInitState.isInitializing) {
logger.info(
"[ElectronPlatformService] Another initialization in progress, waiting...",
);
setTimeout(
attemptInitialization,
ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION
.READY_CHECK_INTERVAL_MS,
);
logger.info("[ElectronPlatformService] Another initialization in progress, waiting...");
setTimeout(attemptInitialization, ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION.READY_CHECK_INTERVAL_MS);
return;
}
@@ -182,9 +171,7 @@ export class ElectronPlatformService implements PlatformService {
// Verify Electron API exposure first
await verifyElectronAPI();
logger.info(
"[ElectronPlatformService] Electron API verification successful",
);
logger.info("[ElectronPlatformService] Electron API verification successful");
if (!window.electron?.ipcRenderer) {
logger.warn("[ElectronPlatformService] IPC renderer not available");
@@ -192,48 +179,15 @@ export class ElectronPlatformService implements PlatformService {
return;
}
// Set timeout for this attempt
this.initializationTimeout = setTimeout(() => {
if (
retryCount <
ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION
.RETRY_ATTEMPTS
) {
retryCount++;
logger.warn(
`[ElectronPlatformService] SQLite initialization attempt ${retryCount} timed out, retrying...`,
);
setTimeout(
attemptInitialization,
ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION
.RETRY_DELAY_MS,
);
} else {
cleanup();
sqliteInitState.isInitializing = false;
sqliteInitState.error = new Error(
"SQLite initialization timeout after all retries",
);
logger.error(
"[ElectronPlatformService] SQLite initialization failed after all retries",
);
reject(sqliteInitState.error);
}
}, ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION.TIMEOUT_MS);
// Set up ready signal handler
// Set up ready signal handler BEFORE setting timeout
window.electron.ipcRenderer.once("sqlite-ready", async () => {
cleanup();
logger.info(
"[ElectronPlatformService] Received SQLite ready signal",
);
logger.info("[ElectronPlatformService] Received SQLite ready signal");
try {
// Test SQLite operations after receiving ready signal
await testSQLiteOperations();
logger.info(
"[ElectronPlatformService] SQLite operations test successful",
);
logger.info("[ElectronPlatformService] SQLite operations test successful");
this.isInitialized = true;
sqliteInitState.isReady = true;
@@ -243,38 +197,43 @@ export class ElectronPlatformService implements PlatformService {
} catch (error) {
sqliteInitState.error = error as Error;
sqliteInitState.isInitializing = false;
logger.error(
"[ElectronPlatformService] SQLite operations test failed:",
error,
);
logger.error("[ElectronPlatformService] SQLite operations test failed:", error);
reject(error);
}
});
// Set up error handler
window.electron.ipcRenderer.once(
"database-status",
(...args: unknown[]) => {
window.electron.ipcRenderer.once("database-status", (...args: unknown[]) => {
cleanup();
const status = args[0] as { status: string; error?: string };
if (status.status === "error") {
this.dbFatalError = true;
sqliteInitState.error = new Error(status.error || "Database initialization failed");
sqliteInitState.isInitializing = false;
reject(sqliteInitState.error);
}
});
// Set timeout for this attempt AFTER setting up handlers
this.initializationTimeout = setTimeout(() => {
if (retryCount < ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION.RETRY_ATTEMPTS) {
retryCount++;
logger.warn(`[ElectronPlatformService] SQLite initialization attempt ${retryCount} timed out, retrying...`);
setTimeout(attemptInitialization, ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION.RETRY_DELAY_MS);
} else {
cleanup();
const status = args[0] as { status: string; error?: string };
if (status.status === "error") {
this.dbFatalError = true;
sqliteInitState.error = new Error(
status.error || "Database initialization failed",
);
sqliteInitState.isInitializing = false;
reject(sqliteInitState.error);
}
},
);
sqliteInitState.isInitializing = false;
sqliteInitState.error = new Error("SQLite initialization timeout after all retries");
logger.error("[ElectronPlatformService] SQLite initialization failed after all retries");
reject(sqliteInitState.error);
}
}, ElectronPlatformService.SQLITE_CONFIG.INITIALIZATION.TIMEOUT_MS);
} catch (error) {
cleanup();
sqliteInitState.error = error as Error;
sqliteInitState.isInitializing = false;
logger.error(
"[ElectronPlatformService] Initialization failed:",
error,
);
logger.error("[ElectronPlatformService] Initialization failed:", error);
reject(error);
}
};
@@ -295,17 +254,27 @@ export class ElectronPlatformService implements PlatformService {
// Use IPC bridge with specific methods
this.sqlite = {
createConnection: async (options) => {
await window.electron.ipcRenderer.invoke('sqlite-create-connection', options);
await window.electron.ipcRenderer.invoke('sqlite-create-connection', {
...options,
database: this.dbName
});
},
query: async (options) => {
return await window.electron.ipcRenderer.invoke('sqlite-query', options);
return await window.electron.ipcRenderer.invoke('sqlite-query', {
...options,
database: this.dbName
});
},
run: async (options) => {
return await window.electron.ipcRenderer.invoke('sqlite-run', options);
return await window.electron.ipcRenderer.invoke('sqlite-run', {
...options,
database: this.dbName
});
},
execute: async (options) => {
await window.electron.ipcRenderer.invoke('sqlite-execute', {
database: options.database,
...options,
database: this.dbName,
statements: [{ statement: options.statements }]
});
}
@@ -559,6 +528,114 @@ export class ElectronPlatformService implements PlatformService {
throw new Error("Not implemented");
}
private async enqueueOperation<T>(operation: () => Promise<T>): Promise<T> {
// Wait for any existing operations to complete
await this.operationQueue;
// Create a new promise for this operation
const operationPromise = (async () => {
try {
// Acquire lock
while (this.queueLock) {
await new Promise(resolve => setTimeout(resolve, 50));
}
this.queueLock = true;
// Execute operation
return await operation();
} finally {
// Release lock
this.queueLock = false;
}
})();
// Update the queue
this.operationQueue = operationPromise;
return operationPromise;
}
private async getConnection(): Promise<void> {
// If we already have a connection promise, return it
if (this.connectionPromise) {
return this.connectionPromise;
}
// If we're already connected, return immediately
if (this.connectionState === 'connected') {
return Promise.resolve();
}
// Create new connection promise
this.connectionPromise = (async () => {
try {
this.connectionState = 'connecting';
// Wait for any existing operations
await this.operationQueue;
// Create connection
await window.electron!.ipcRenderer.invoke('sqlite-create-connection', {
database: this.dbName,
encrypted: false,
mode: "no-encryption",
});
logger.debug("[ElectronPlatformService] Database connection created");
// Open database
await window.electron!.ipcRenderer.invoke('sqlite-open', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] Database opened");
// Verify database is open
const isOpen = await window.electron!.ipcRenderer.invoke('sqlite-is-db-open', {
database: this.dbName
});
if (!isOpen) {
throw new Error('[ElectronPlatformService] Database failed to open');
}
this.connectionState = 'connected';
this.isConnectionOpen = true;
} catch (error) {
this.connectionState = 'error';
this.connectionPromise = null;
throw error;
}
})();
return this.connectionPromise;
}
private async releaseConnection(): Promise<void> {
if (this.connectionState !== 'connected') {
return;
}
try {
// Close database
await window.electron!.ipcRenderer.invoke('sqlite-close', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] Database closed");
// Close connection
await window.electron!.ipcRenderer.invoke('sqlite-close-connection', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] Database connection closed");
this.connectionState = 'disconnected';
this.isConnectionOpen = false;
} catch (error) {
logger.error("[ElectronPlatformService] Failed to close database:", error);
this.connectionState = 'error';
} finally {
this.connectionPromise = null;
}
}
/**
* Executes a database query with proper connection lifecycle management.
* Opens connection, executes query, and ensures proper cleanup.
@@ -572,99 +649,39 @@ export class ElectronPlatformService implements PlatformService {
sql: string,
params: unknown[] = [],
): Promise<QueryExecResult<T>> {
logger.debug(
"[ElectronPlatformService] [dbQuery] TEMPORARY TEST: Returning empty result for query:",
{
sql,
params,
timestamp: new Date().toISOString(),
},
);
// TEMPORARY TEST: Return empty result
return {
columns: [],
values: [],
};
// Original implementation commented out for testing
/*
if (this.dbFatalError) {
throw new Error("Database is in a fatal error state. Please restart the app.");
}
if (!window.electron?.ipcRenderer) {
throw new Error("IPC renderer not available");
}
try {
// Check SQLite availability first
const isAvailable = await window.electron.ipcRenderer.invoke('sqlite-is-available');
if (!isAvailable) {
throw new Error('[ElectronPlatformService] [dbQuery] SQLite is not available');
}
logger.debug("[ElectronPlatformService] [dbQuery] SQLite is available");
// Create database connection
await window.electron.ipcRenderer.invoke('sqlite-create-connection', {
database: this.dbName,
version: 1
});
logger.debug("[ElectronPlatformService] [dbQuery] Database connection created");
// Open database
await window.electron.ipcRenderer.invoke('sqlite-open', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] [dbQuery] Database opened");
// Verify database is open
const isOpen = await window.electron.ipcRenderer.invoke('sqlite-is-db-open', {
database: this.dbName
});
if (!isOpen) {
throw new Error('[ElectronPlatformService] [dbQuery] Database failed to open');
}
// Execute query
const result = await window.electron.ipcRenderer.invoke('sqlite-query', {
database: this.dbName,
statement: sql,
values: params
}) as SQLiteQueryResult;
logger.debug("[ElectronPlatformService] [dbQuery] Query executed successfully");
// Process results
const columns = result.values?.[0] ? Object.keys(result.values[0]) : [];
const processedResult = {
columns,
values: (result.values || []).map((row: Record<string, unknown>) => row as T)
};
return processedResult;
} catch (error) {
logger.error("[ElectronPlatformService] [dbQuery] Query failed:", error);
throw error;
} finally {
// Ensure proper cleanup
return this.enqueueOperation(async () => {
try {
// Close database
await window.electron.ipcRenderer.invoke('sqlite-close', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] [dbQuery] Database closed");
// Get connection (will wait for existing connection if any)
await this.getConnection();
// Close connection
await window.electron.ipcRenderer.invoke('sqlite-close-connection', {
database: this.dbName
});
logger.debug("[ElectronPlatformService] [dbQuery] Database connection closed");
} catch (closeError) {
logger.error("[ElectronPlatformService] [dbQuery] Failed to cleanup database:", closeError);
// Don't throw here - we want to preserve the original error if any
// Execute query
const result = await window.electron!.ipcRenderer.invoke('sqlite-query', {
database: this.dbName,
statement: sql,
values: params
}) as SQLiteQueryResult;
logger.debug("[ElectronPlatformService] [dbQuery] Query executed successfully");
// Process results
const columns = result.values?.[0] ? Object.keys(result.values[0]) : [];
const processedResult = {
columns,
values: (result.values || []).map((row: Record<string, unknown>) => row as T)
};
return processedResult;
} catch (error) {
logger.error("[ElectronPlatformService] [dbQuery] Query failed:", error);
throw error;
} finally {
// Release connection after query
await this.releaseConnection();
}
}
*/
});
}
/**