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Overview
| Comment: | By default, only attempt to initialize the logging subsystem once and add 'Initialize_SQLiteLog' setting to disable this behavior. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 21c1c0401276a603db27b758bed40cb5 |
| User & Date: | mistachkin 2018-07-26 06:52:08 |
Context
|
2018-07-26
| ||
| 06:54 | Add configuration suffix support to the test suite infrastructure. check-in: 7ffb245069 user: mistachkin tags: trunk | |
| 06:52 | By default, only attempt to initialize the logging subsystem once and add 'Initialize_SQLiteLog' setting to disable this behavior. check-in: 21c1c04012 user: mistachkin tags: trunk | |
| 05:05 | Simplify build scripts for Mono on POSIX. check-in: a76782cfe6 user: mistachkin tags: trunk | |
Changes
Changes to Doc/Extra/Provider/environment.html.
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<tr valign="top">
<td>Force_SQLiteLog</td>
<td>If this environment variable is set [to anything], the SQLite
logging subsystem may be initialized in a non-default application
domain. By default, this is not allowed due to the potential for
application domain unloading issues.</td>
</tr>
<tr valign="top">
<td>No_PreLoadSQLite</td>
<td>If this environment variable is set [to anything], the native
library pre-loading code will be disabled. By default, the native
library pre-loading code will attempt to load the native SQLite
library from architecture-specific (e.g. "x86",
"amd64", "x64") or platform-specific (e.g.
|
> > > > > > |
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<tr valign="top">
<td>Force_SQLiteLog</td>
<td>If this environment variable is set [to anything], the SQLite
logging subsystem may be initialized in a non-default application
domain. By default, this is not allowed due to the potential for
application domain unloading issues.</td>
</tr>
<tr valign="top">
<td>Initialize_SQLiteLog</td>
<td>If this environment variable is set [to anything], the SQLite
logging subsystem will attempt to perform initialization even when
an attempt was previously made.</td>
</tr>
<tr valign="top">
<td>No_PreLoadSQLite</td>
<td>If this environment variable is set [to anything], the native
library pre-loading code will be disabled. By default, the native
library pre-loading code will attempt to load the native SQLite
library from architecture-specific (e.g. "x86",
"amd64", "x64") or platform-specific (e.g.
|
Changes to System.Data.SQLite/Configurations/System.Data.SQLite.dll.config.
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logging subsystem may be initialized in a non-default application
domain. By default, this is not allowed due to the potential
for application domain unloading issues.
-->
<!--
<add key="Force_SQLiteLog" value="1" />
-->
<!--
NOTE: If this configuration variable is set [to anything], the native
library pre-loading functionality will be disabled. By default,
the native library pre-loading will attempt to load the native
SQLite library from architecture-specific (e.g. "x86", "amd64",
"x64") or platform-specific (e.g. "Win32") directories that
|
> > > > > > > > > |
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logging subsystem may be initialized in a non-default application
domain. By default, this is not allowed due to the potential
for application domain unloading issues.
-->
<!--
<add key="Force_SQLiteLog" value="1" />
-->
<!--
NOTE: If this environment variable is set [to anything], the SQLite
logging subsystem will attempt to perform initialization even
when an attempt was previously made.
-->
<!--
<add key="Initialize_SQLiteLog" value="1" />
-->
<!--
NOTE: If this configuration variable is set [to anything], the native
library pre-loading functionality will be disabled. By default,
the native library pre-loading will attempt to load the native
SQLite library from architecture-specific (e.g. "x86", "amd64",
"x64") or platform-specific (e.g. "Win32") directories that
|
Changes to System.Data.SQLite/SQLiteLog.cs.
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namespace System.Data.SQLite
{
using System;
using System.Data.Common;
using System.Diagnostics;
using System.Globalization;
/// <summary>
/// Event data for logging event handlers.
/// </summary>
public class LogEventArgs : EventArgs
{
/// <summary>
................................................................................
/// The base SQLite object to interop with.
/// </summary>
private static SQLiteBase _sql;
#endif
///////////////////////////////////////////////////////////////////////
/// <summary>
/// This will be non-zero if logging is currently enabled.
/// </summary>
private static bool _enabled;
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Initializes the SQLite logging facilities.
/// </summary>
public static void Initialize()
{
//
// BUFXIX: We cannot initialize the logging interface if the SQLite
// core library has already been initialized anywhere in
// the process (see ticket [2ce0870fad]).
//
if (SQLite3.StaticIsInitialized())
return;
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namespace System.Data.SQLite
{
using System;
using System.Data.Common;
using System.Diagnostics;
using System.Globalization;
using System.Threading;
/// <summary>
/// Event data for logging event handlers.
/// </summary>
public class LogEventArgs : EventArgs
{
/// <summary>
................................................................................
/// The base SQLite object to interop with.
/// </summary>
private static SQLiteBase _sql;
#endif
///////////////////////////////////////////////////////////////////////
/// <summary>
/// This will be non-zero if an attempt was already made to initialize
/// the (managed) logging subsystem.
/// </summary>
private static int _attemptedInitialize;
///////////////////////////////////////////////////////////////////////
/// <summary>
/// This will be non-zero if logging is currently enabled.
/// </summary>
private static bool _enabled;
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Initializes the SQLite logging facilities.
/// </summary>
public static void Initialize()
{
//
// NOTE: First, check if the managed logging subsystem is always
// supposed to at least attempt to initialize itself. In
// order to do this, several fairly complex steps must be
// taken, including calling a P/Invoke (interop) method;
// therefore, by default, attempt to perform these steps
// once.
//
if (UnsafeNativeMethods.GetSettingValue(
"Initialize_SQLiteLog", null) == null)
{
try
{
if (Interlocked.Increment(ref _attemptedInitialize) > 0)
{
return;
}
}
finally
{
Interlocked.Decrement(ref _attemptedInitialize);
}
}
//
// BUFXIX: We cannot initialize the logging interface if the SQLite
// core library has already been initialized anywhere in
// the process (see ticket [2ce0870fad]).
//
if (SQLite3.StaticIsInitialized())
return;
|