mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
295 lines
11 KiB
C
295 lines
11 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsDebug_h___
|
|
#define nsDebug_h___
|
|
|
|
#ifndef nscore_h___
|
|
#include "nscore.h"
|
|
#endif
|
|
|
|
#ifndef nsError_h__
|
|
#include "nsError.h"
|
|
#endif
|
|
|
|
#include "nsXPCOM.h"
|
|
|
|
#ifdef DEBUG
|
|
#define NS_DEBUG
|
|
#include "prprf.h"
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
|
|
/**
|
|
* Abort the execution of the program if the expression evaluates to
|
|
* false.
|
|
*
|
|
* There is no status value returned from the macro.
|
|
*
|
|
* Note that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the expression argument. Hence side effect statements
|
|
* as arguments to the macro will yield improper execution in a
|
|
* non-debug build. For example:
|
|
*
|
|
* NS_ABORT_IF_FALSE(0 == foo++, "yikes foo should be zero");
|
|
*
|
|
* Note also that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the message argument.
|
|
*/
|
|
#define NS_ABORT_IF_FALSE(_expr, _msg) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(_expr)) { \
|
|
NS_DebugBreak(NS_DEBUG_ABORT, _msg, #_expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* Warn if a given condition is false.
|
|
*
|
|
* Program execution continues past the usage of this macro.
|
|
*
|
|
* Note also that the non-debug version of this macro does <b>not</b>
|
|
* evaluate the message argument.
|
|
*/
|
|
#define NS_WARN_IF_FALSE(_expr,_msg) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(_expr)) { \
|
|
NS_DebugBreak(NS_DEBUG_WARNING, _msg, #_expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* Test a precondition for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_PRECONDITION(expr, str) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(expr)) { \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, #expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* Test an assertion for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_ASSERTION(expr, str) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(expr)) { \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, #expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* Test a post-condition for truth. If the expression is not true then
|
|
* trigger a program failure.
|
|
*/
|
|
#define NS_POSTCONDITION(expr, str) \
|
|
PR_BEGIN_MACRO \
|
|
if (!(expr)) { \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, #expr, __FILE__, __LINE__); \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/**
|
|
* This macros triggers a program failure if executed. It indicates that
|
|
* an attempt was made to execute some unimplemented functionality.
|
|
*/
|
|
#define NS_NOTYETIMPLEMENTED(str) \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, "NotYetImplemented", __FILE__, __LINE__)
|
|
|
|
/**
|
|
* This macros triggers a program failure if executed. It indicates that
|
|
* an attempt was made to execute some unimplemented functionality.
|
|
*/
|
|
#define NS_NOTREACHED(str) \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, "Not Reached", __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Log an error message.
|
|
*/
|
|
#define NS_ERROR(str) \
|
|
NS_DebugBreak(NS_DEBUG_ASSERTION, str, "Error", __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Log a warning message.
|
|
*/
|
|
#define NS_WARNING(str) \
|
|
NS_DebugBreak(NS_DEBUG_WARNING, str, nsnull, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Trigger an abort
|
|
*/
|
|
#define NS_ABORT() \
|
|
NS_DebugBreak(NS_DEBUG_ABORT, nsnull, nsnull, __FILE__, __LINE__)
|
|
|
|
/**
|
|
* Cause a break
|
|
*/
|
|
#define NS_BREAK() \
|
|
NS_DebugBreak(NS_DEBUG_BREAK, nsnull, nsnull, __FILE__, __LINE__)
|
|
|
|
#else /* NS_DEBUG */
|
|
|
|
/**
|
|
* The non-debug version of these macros do not evaluate the
|
|
* expression or the message arguments to the macro.
|
|
*/
|
|
#define NS_ABORT_IF_FALSE(_expr, _msg) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_WARN_IF_FALSE(_expr, _msg) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_PRECONDITION(expr, str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_ASSERTION(expr, str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_POSTCONDITION(expr, str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_NOTYETIMPLEMENTED(str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_NOTREACHED(str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_ERROR(str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_WARNING(str) PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_ABORT() PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
#define NS_BREAK() PR_BEGIN_MACRO /* nothing */ PR_END_MACRO
|
|
|
|
#endif /* ! NS_DEBUG */
|
|
|
|
/******************************************************************************
|
|
** Macros for terminating execution when an unrecoverable condition is
|
|
** reached. These need to be compiled regardless of the NS_DEBUG flag.
|
|
******************************************************************************/
|
|
|
|
/**
|
|
* Terminate execution <i>immediately</i>, and if possible on the current
|
|
* platform, in such a way that execution can't be continued by other
|
|
* code (e.g., by intercepting a signal).
|
|
*/
|
|
#define NS_RUNTIMEABORT(msg) \
|
|
NS_DebugBreak(NS_DEBUG_ABORT, msg, nsnull, __FILE__, __LINE__)
|
|
|
|
|
|
/* Macros for checking the trueness of an expression passed in within an
|
|
* interface implementation. These need to be compiled regardless of the */
|
|
/* NS_DEBUG flag
|
|
******************************************************************************/
|
|
|
|
#define NS_ENSURE_TRUE(x, ret) \
|
|
PR_BEGIN_MACRO \
|
|
if (NS_UNLIKELY(!(x))) { \
|
|
NS_WARNING("NS_ENSURE_TRUE(" #x ") failed"); \
|
|
return ret; \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
#define NS_ENSURE_FALSE(x, ret) \
|
|
NS_ENSURE_TRUE(!(x), ret)
|
|
|
|
/******************************************************************************
|
|
** Macros for checking results
|
|
******************************************************************************/
|
|
|
|
#if defined(DEBUG) && !defined(XPCOM_GLUE_AVOID_NSPR)
|
|
|
|
#define NS_ENSURE_SUCCESS_BODY(res, ret) \
|
|
char *msg = PR_smprintf("NS_ENSURE_SUCCESS(%s, %s) failed with " \
|
|
"result 0x%X", #res, #ret, __rv); \
|
|
NS_WARNING(msg); \
|
|
PR_smprintf_free(msg);
|
|
|
|
#else
|
|
|
|
#define NS_ENSURE_SUCCESS_BODY(res, ret) \
|
|
NS_WARNING("NS_ENSURE_SUCCESS(" #res ", " #ret ") failed");
|
|
|
|
#endif
|
|
|
|
#define NS_ENSURE_SUCCESS(res, ret) \
|
|
PR_BEGIN_MACRO \
|
|
nsresult __rv = res; /* Don't evaluate |res| more than once */ \
|
|
if (NS_FAILED(__rv)) { \
|
|
NS_ENSURE_SUCCESS_BODY(res, ret) \
|
|
return ret; \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
/******************************************************************************
|
|
** Macros for checking state and arguments upon entering interface boundaries
|
|
******************************************************************************/
|
|
|
|
#define NS_ENSURE_ARG(arg) \
|
|
NS_ENSURE_TRUE(arg, NS_ERROR_INVALID_ARG)
|
|
|
|
#define NS_ENSURE_ARG_POINTER(arg) \
|
|
NS_ENSURE_TRUE(arg, NS_ERROR_INVALID_POINTER)
|
|
|
|
#define NS_ENSURE_ARG_MIN(arg, min) \
|
|
NS_ENSURE_TRUE((arg) >= min, NS_ERROR_INVALID_ARG)
|
|
|
|
#define NS_ENSURE_ARG_MAX(arg, max) \
|
|
NS_ENSURE_TRUE((arg) <= max, NS_ERROR_INVALID_ARG)
|
|
|
|
#define NS_ENSURE_ARG_RANGE(arg, min, max) \
|
|
NS_ENSURE_TRUE(((arg) >= min) && ((arg) <= max), NS_ERROR_INVALID_ARG)
|
|
|
|
#define NS_ENSURE_STATE(state) \
|
|
NS_ENSURE_TRUE(state, NS_ERROR_UNEXPECTED)
|
|
|
|
#define NS_ENSURE_NO_AGGREGATION(outer) \
|
|
NS_ENSURE_FALSE(outer, NS_ERROR_NO_AGGREGATION)
|
|
|
|
#define NS_ENSURE_PROPER_AGGREGATION(outer, iid) \
|
|
NS_ENSURE_FALSE(outer && !iid.Equals(NS_GET_IID(nsISupports)), NS_ERROR_INVALID_ARG)
|
|
|
|
/*****************************************************************************/
|
|
|
|
#ifdef XPCOM_GLUE
|
|
#define NS_CheckThreadSafe
|
|
#else
|
|
#define NS_CheckThreadSafe(owningThread, msg) \
|
|
NS_ASSERTION(owningThread == PR_GetCurrentThread(), msg)
|
|
#endif
|
|
|
|
/* When compiling the XPCOM Glue on Windows, we pretend that it's going to
|
|
* be linked with a static CRT (-MT) even when it's not. This means that we
|
|
* cannot link to data exports from the CRT, only function exports. So,
|
|
* instead of referencing "stderr" directly, use fdopen.
|
|
*/
|
|
PR_BEGIN_EXTERN_C
|
|
|
|
NS_COM_GLUE void
|
|
printf_stderr(const char *fmt, ...);
|
|
|
|
PR_END_EXTERN_C
|
|
|
|
#endif /* nsDebug_h___ */
|