зеркало из https://github.com/mozilla/pjs.git
494 строки
14 KiB
C++
494 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||
/*
|
||
* The contents of this file are subject to the Netscape 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/NPL/
|
||
*
|
||
* 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 Netscape are
|
||
* Copyright (C) 1998 Netscape Communications Corporation. All
|
||
* Rights Reserved.
|
||
*
|
||
* Contributor(s):
|
||
*
|
||
* This Original Code has been modified by IBM Corporation. Modifications made by IBM
|
||
* described herein are Copyright (c) International Business Machines Corporation, 2000.
|
||
* Modifications to Mozilla code or documentation identified per MPL Section 3.3
|
||
*
|
||
* Date Modified by Description of modification
|
||
* 04/10/2000 IBM Corp. Added DebugBreak() definitions for OS/2
|
||
* 06/19/2000 IBM Corp. Fix DebugBreak() messagebox defaults for OS/2
|
||
* 06/19/2000 Henry Sobotka Fix DebugBreak() for OS/2 on retail build.
|
||
*/
|
||
|
||
#include "nsDebug.h"
|
||
#include "prprf.h"
|
||
#include "prlog.h"
|
||
#include "prinit.h"
|
||
#include "plstr.h"
|
||
#include "nsError.h"
|
||
#include "prerror.h"
|
||
#include "prerr.h"
|
||
|
||
#if defined(XP_BEOS)
|
||
/* For DEBUGGER macros */
|
||
#include <Debug.h>
|
||
/* for getenv() */
|
||
#include <stdlib.h>
|
||
#endif
|
||
|
||
#if defined(XP_UNIX) || defined(_WIN32) || defined(XP_OS2)
|
||
/* for abort() and getenv() */
|
||
#include <stdlib.h>
|
||
#endif
|
||
|
||
#if defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT)
|
||
#include <signal.h>
|
||
/* for nsTraceRefcnt::WalkTheStack() */
|
||
#include "nsISupportsUtils.h"
|
||
#include "nsTraceRefcnt.h"
|
||
#endif
|
||
|
||
#if defined(XP_OS2)
|
||
/* Added definitions for DebugBreak() for 2 different OS/2 compilers. Doing
|
||
* the int3 on purpose for Visual Age so that a developer can step over the
|
||
* instruction if so desired. Not always possible if trapping due to exception
|
||
* handling IBM-AKR
|
||
*/
|
||
#define INCL_WINDIALOGS // need for WinMessageBox
|
||
#include <os2.h>
|
||
|
||
#if defined(DEBUG)
|
||
#if defined(XP_OS2_VACPP)
|
||
#include <builtin.h>
|
||
#define DebugBreak() { _interrupt(3); }
|
||
#elif defined(XP_OS2_EMX)
|
||
/* Force a trap */
|
||
#define DebugBreak() { int *pTrap=NULL; *pTrap = 1; }
|
||
#else
|
||
#define DebugBreak()
|
||
#endif
|
||
|
||
#else
|
||
#define DebugBreak()
|
||
#endif /* DEBUG */
|
||
#endif /* XP_OS2 */
|
||
|
||
#if defined(_WIN32)
|
||
#include <windows.h>
|
||
#include <signal.h>
|
||
#elif defined(XP_MAC)
|
||
#define TEMP_MAC_HACK
|
||
|
||
//------------------------
|
||
#ifdef TEMP_MAC_HACK
|
||
#include <MacTypes.h>
|
||
#include <Processes.h>
|
||
#include <string.h>
|
||
|
||
// TEMPORARY UNTIL WE HAVE MACINTOSH ENVIRONMENT VARIABLES THAT CAN TURN ON
|
||
// LOGGING ON MACINTOSH
|
||
// At this moment, NSPR's logging is a no-op on Macintosh.
|
||
|
||
#include <stdarg.h>
|
||
#include <stdio.h>
|
||
|
||
#undef PR_LOG
|
||
#undef PR_LogFlush
|
||
#define PR_LOG(module,level,args) dprintf args
|
||
#define PR_LogFlush()
|
||
static void dprintf(const char *format, ...)
|
||
{
|
||
va_list ap;
|
||
Str255 buffer;
|
||
|
||
va_start(ap, format);
|
||
buffer[0] = std::vsnprintf((char *)buffer + 1, sizeof(buffer) - 1, format, ap);
|
||
va_end(ap);
|
||
if (PL_strcasestr((char *)&buffer[1], "warning"))
|
||
printf("<EFBFBD><EFBFBD><EFBFBD>%s\n", (char*)buffer + 1);
|
||
else
|
||
DebugStr(buffer);
|
||
}
|
||
#endif // TEMP_MAC_HACK
|
||
//------------------------
|
||
#elif defined(XP_UNIX)
|
||
#include<stdlib.h>
|
||
#endif
|
||
|
||
/**
|
||
* Define output so users will always see it
|
||
*/
|
||
|
||
#if defined(XP_UNIX) || defined(_WIN32)
|
||
#define DBG_LOG(log,err,pargs) \
|
||
InitLog(); \
|
||
PR_LOG(log,err,pargs); \
|
||
PR_LogFlush(); \
|
||
printf pargs; putchar('\n');
|
||
#else
|
||
#define DBG_LOG(log,err,pargs) \
|
||
InitLog(); \
|
||
PR_LOG(log,err,pargs); \
|
||
PR_LogFlush();
|
||
#endif
|
||
|
||
/*
|
||
* Determine if debugger is present in windows.
|
||
*/
|
||
#if defined (_WIN32)
|
||
|
||
typedef WINBASEAPI BOOL (WINAPI* LPFNISDEBUGGERPRESENT)();
|
||
PRBool InDebugger()
|
||
{
|
||
PRBool fReturn = PR_FALSE;
|
||
LPFNISDEBUGGERPRESENT lpfnIsDebuggerPresent = NULL;
|
||
HINSTANCE hKernel = LoadLibrary("Kernel32.dll");
|
||
|
||
if(hKernel)
|
||
{
|
||
lpfnIsDebuggerPresent =
|
||
(LPFNISDEBUGGERPRESENT)GetProcAddress(hKernel, "IsDebuggerPresent");
|
||
if(lpfnIsDebuggerPresent)
|
||
{
|
||
fReturn = (*lpfnIsDebuggerPresent)();
|
||
}
|
||
FreeLibrary(hKernel);
|
||
}
|
||
|
||
return fReturn;
|
||
}
|
||
|
||
#endif /* WIN32*/
|
||
|
||
|
||
/**
|
||
* Implementation of the nsDebug methods. Note that this code is
|
||
* always compiled in, in case some other module that uses it is
|
||
* compiled with debugging even if this library is not.
|
||
*/
|
||
static PRLogModuleInfo* gDebugLog;
|
||
|
||
static void InitLog(void)
|
||
{
|
||
if (0 == gDebugLog) {
|
||
gDebugLog = PR_NewLogModule("nsDebug");
|
||
gDebugLog->level = PR_LOG_DEBUG;
|
||
}
|
||
}
|
||
|
||
NS_COM void nsDebug::Assertion(const char* aStr, const char* aExpr,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
InitLog();
|
||
|
||
char buf[1000];
|
||
PR_snprintf(buf, sizeof(buf),
|
||
"###!!! ASSERTION: %s: '%s', file %s, line %d",
|
||
aStr, aExpr, aFile, aLine);
|
||
|
||
// Write out the assertion message to the debug log
|
||
PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf));
|
||
PR_LogFlush();
|
||
|
||
// And write it out to the stdout
|
||
printf("%s\n", buf);
|
||
fflush(stdout);
|
||
|
||
#if defined(_WIN32)
|
||
if(!InDebugger())
|
||
{
|
||
char msg[1200];
|
||
PR_snprintf(msg, sizeof(msg),
|
||
"%s\n\nClick Abort to exit the Application.\n"
|
||
"Click Retry to Debug the Application..\n"
|
||
"Click Ignore to continue running the Application.", buf);
|
||
int code = ::MessageBox(NULL, msg, "nsDebug::Assertion",
|
||
MB_ICONSTOP | MB_ABORTRETRYIGNORE);
|
||
switch(code)
|
||
{
|
||
case IDABORT:
|
||
//This should exit us
|
||
raise(SIGABRT);
|
||
//If we are ignored exit this way..
|
||
_exit(3);
|
||
break;
|
||
|
||
case IDIGNORE:
|
||
return;
|
||
// Fall Through
|
||
}
|
||
}
|
||
#endif
|
||
|
||
#if defined(XP_OS2)
|
||
char msg[1200];
|
||
PR_snprintf(msg, sizeof(msg),
|
||
"%s\n\nClick Cancel to Debug Application.\n"
|
||
"Click Enter to continue running the Application.", buf);
|
||
ULONG code = WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, msg,
|
||
"nsDebug::Assertion", 0,
|
||
MB_ERROR | MB_ENTERCANCEL);
|
||
|
||
/* It is possible that we are executing on a thread that doesn't have a
|
||
* message queue. In that case, the message won't appear, and code will
|
||
* be 0xFFFF. We'll give the user a chance to debug it by calling
|
||
* Break()
|
||
*/
|
||
if( code == MBID_ENTER )
|
||
{
|
||
return;
|
||
// If Retry, Fall Through
|
||
}
|
||
#endif
|
||
|
||
Break(aFile, aLine);
|
||
}
|
||
|
||
NS_COM void nsDebug::Break(const char* aFile, PRIntn aLine)
|
||
{
|
||
#ifndef TEMP_MAC_HACK
|
||
DBG_LOG(gDebugLog, PR_LOG_ERROR,
|
||
("###!!! Break: at file %s, line %d", aFile, aLine));
|
||
#if defined(_WIN32)
|
||
#ifdef _M_IX86
|
||
::DebugBreak();
|
||
#else /* _M_ALPHA */
|
||
fprintf(stderr, "Break: at file %s\n",aFile, aLine); fflush(stderr);
|
||
#endif
|
||
#elif defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT)
|
||
fprintf(stderr, "\07");
|
||
|
||
char *assertBehavior = getenv("XPCOM_DEBUG_BREAK");
|
||
|
||
if (!assertBehavior) {
|
||
|
||
// the default; nothing else to do
|
||
;
|
||
|
||
} else if ( strcmp(assertBehavior, "suspend")== 0 ) {
|
||
|
||
// the suspend case is first because we wanna send the signal before
|
||
// other threads have had a chance to get too far from the state that
|
||
// caused this assertion (in case they happen to have been involved).
|
||
//
|
||
fprintf(stderr, "Suspending process; attach with the debugger.\n");
|
||
kill(0, SIGSTOP);
|
||
|
||
} else if ( strcmp(assertBehavior, "warn")==0 ) {
|
||
|
||
// same as default; nothing else to do (see "suspend" case comment for
|
||
// why this compare isn't done as part of the default case)
|
||
//
|
||
;
|
||
|
||
} else if ( strcmp(assertBehavior,"stack")==0 ) {
|
||
|
||
// walk the stack
|
||
//
|
||
nsTraceRefcnt::WalkTheStack(stderr);
|
||
|
||
} else if ( strcmp(assertBehavior,"abort")==0 ) {
|
||
|
||
// same as UNIX_CRASH_ON_ASSERT
|
||
//
|
||
Abort(aFile, aLine);
|
||
|
||
} else {
|
||
|
||
fprintf(stderr, "unrecognized value of XPCOM_DEBUG_BREAK env var!\n");
|
||
|
||
}
|
||
fflush(stderr); // this shouldn't really be necessary, i don't think,
|
||
// but maybe there's some lame stdio that buffers stderr
|
||
|
||
#elif defined(XP_BEOS)
|
||
{
|
||
#ifdef UNIX_CRASH_ON_ASSERT
|
||
char buf[2000];
|
||
sprintf(buf, "Break: at file %s, line %d", aFile, aLine);
|
||
DEBUGGER(buf);
|
||
#endif
|
||
}
|
||
#else
|
||
Abort(aFile, aLine);
|
||
#endif
|
||
#endif // TEMP_MAC_HACK
|
||
}
|
||
|
||
NS_COM void nsDebug::Warning(const char* aMessage,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
InitLog();
|
||
|
||
char buf[1000];
|
||
PR_snprintf(buf, sizeof(buf),
|
||
"WARNING: %s, file %s, line %d",
|
||
aMessage, aFile, aLine);
|
||
|
||
// Write out the warning message to the debug log
|
||
PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf));
|
||
|
||
// And write it out to the stdout
|
||
printf("%s\n", buf);
|
||
}
|
||
|
||
//**************** All Dead Code Below
|
||
// Don't use these!
|
||
NS_COM void nsDebug::AbortIfFalse(const char* aStr, const char* aExpr,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aStr, aExpr, aFile, aLine);
|
||
}
|
||
|
||
NS_COM PRBool nsDebug::WarnIfFalse(const char* aStr, const char* aExpr,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aStr, aExpr, aFile, aLine);
|
||
return PR_TRUE;
|
||
}
|
||
|
||
NS_COM void nsDebug::Abort(const char* aFile, PRIntn aLine)
|
||
{
|
||
DBG_LOG(gDebugLog, PR_LOG_ERROR,
|
||
("###!!! Abort: at file %s, line %d", aFile, aLine));
|
||
#if defined(_WIN32)
|
||
#ifdef _M_IX86
|
||
long* __p = (long*) 0x7;
|
||
*__p = 0x7;
|
||
#else /* _M_ALPHA */
|
||
fprintf(stderr, "\07 Abort\n"); fflush(stderr);
|
||
PR_Abort();
|
||
#endif
|
||
#elif defined(XP_MAC)
|
||
ExitToShell();
|
||
#elif defined(XP_UNIX)
|
||
PR_Abort();
|
||
#elif defined(XP_OS2)
|
||
DebugBreak();
|
||
return;
|
||
#elif defined(XP_BEOS)
|
||
{
|
||
#ifndef DEBUG_cls
|
||
char buf[2000];
|
||
sprintf(buf, "Abort: at file %s, line %d", aFile, aLine);
|
||
DEBUGGER(buf);
|
||
#endif
|
||
}
|
||
#endif
|
||
}
|
||
|
||
|
||
NS_COM void nsDebug::PreCondition(const char* aStr, const char* aExpr,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aStr, aExpr, aFile, aLine);
|
||
}
|
||
|
||
NS_COM void nsDebug::PostCondition(const char* aStr, const char* aExpr,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aStr, aExpr, aFile, aLine);
|
||
}
|
||
|
||
NS_COM void nsDebug::NotYetImplemented(const char* aMessage,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aMessage, "NotYetImplemented", aFile, aLine);
|
||
}
|
||
|
||
NS_COM void nsDebug::NotReached(const char* aMessage,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aMessage, "Not Reached", aFile, aLine);
|
||
}
|
||
|
||
NS_COM void nsDebug::Error(const char* aMessage,
|
||
const char* aFile, PRIntn aLine)
|
||
{
|
||
Assertion(aMessage, "Error", aFile, aLine);
|
||
}
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
|
||
NS_COM nsresult
|
||
NS_ErrorAccordingToNSPR()
|
||
{
|
||
PRErrorCode err = PR_GetError();
|
||
switch (err) {
|
||
case PR_OUT_OF_MEMORY_ERROR: return NS_ERROR_OUT_OF_MEMORY;
|
||
case PR_WOULD_BLOCK_ERROR: return NS_BASE_STREAM_WOULD_BLOCK;
|
||
case PR_FILE_NOT_FOUND_ERROR: return NS_ERROR_FILE_NOT_FOUND;
|
||
case PR_READ_ONLY_FILESYSTEM_ERROR: return NS_ERROR_FILE_READ_ONLY;
|
||
case PR_NOT_DIRECTORY_ERROR: return NS_ERROR_FILE_NOT_DIRECTORY;
|
||
case PR_IS_DIRECTORY_ERROR: return NS_ERROR_FILE_IS_DIRECTORY;
|
||
case PR_LOOP_ERROR: return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
|
||
case PR_FILE_EXISTS_ERROR: return NS_ERROR_FILE_ALREADY_EXISTS;
|
||
case PR_FILE_IS_LOCKED_ERROR: return NS_ERROR_FILE_IS_LOCKED;
|
||
case PR_FILE_TOO_BIG_ERROR: return NS_ERROR_FILE_TOO_BIG;
|
||
case PR_NO_DEVICE_SPACE_ERROR: return NS_ERROR_FILE_NO_DEVICE_SPACE;
|
||
case PR_NAME_TOO_LONG_ERROR: return NS_ERROR_FILE_NAME_TOO_LONG;
|
||
case PR_DIRECTORY_NOT_EMPTY_ERROR: return NS_ERROR_FILE_DIR_NOT_EMPTY;
|
||
case PR_NO_ACCESS_RIGHTS_ERROR: return NS_ERROR_FILE_ACCESS_DENIED;
|
||
default: return NS_ERROR_FAILURE;
|
||
}
|
||
}
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|
||
// This wrapper around PR_CurrentThread is simply here for debug builds so
|
||
// that clients linking with xpcom don't also have to link with nspr explicitly.
|
||
|
||
#if defined(NS_DEBUG) && defined(NS_MT_SUPPORTED)
|
||
|
||
#include "nsISupportsUtils.h"
|
||
#include "prthread.h"
|
||
|
||
extern "C" NS_EXPORT void* NS_CurrentThread(void);
|
||
extern "C" NS_EXPORT void NS_CheckThreadSafe(void* owningThread, const char* msg);
|
||
|
||
void*
|
||
NS_CurrentThread(void)
|
||
{
|
||
void* th = PR_CurrentThread();
|
||
return th;
|
||
}
|
||
|
||
/*
|
||
* DON'T TOUCH THAT DIAL...
|
||
* For now, we're making the thread-safety checking be on by default which, yes, slows
|
||
* down linux a bit... but we're doing it so that everybody has a chance to exercise
|
||
* their code a good deal before the beta. After we branch, we'll turn this back off
|
||
* and then you can enable it explicitly by setting XPCOM_CHECK_THREADSAFE. This will
|
||
* let you verify the thread-safety of your classes without impacting everyone all the
|
||
* time.
|
||
*/
|
||
static PRBool gCheckThreadSafeDefault = PR_TRUE; // READ THE ABOVE COMMENT FIRST!
|
||
|
||
void
|
||
NS_CheckThreadSafe(void* owningThread, const char* msg)
|
||
{
|
||
static int check = -1;
|
||
if (check == -1) {
|
||
const char *eVar = getenv("XPCOM_CHECK_THREADSAFE");
|
||
if (eVar && *eVar == '0')
|
||
check = 0;
|
||
else
|
||
check = gCheckThreadSafeDefault || eVar != 0;
|
||
}
|
||
if (check) {
|
||
NS_ASSERTION(owningThread == NS_CurrentThread(), msg);
|
||
}
|
||
}
|
||
|
||
#endif // !(defined(NS_DEBUG) && defined(NS_MT_SUPPORTED))
|
||
|
||
////////////////////////////////////////////////////////////////////////////////
|