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imagemagick/magick/log.c

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Import Upstream version 6.9.11.60
2023-02-03 21:16:55 +08:00
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L OOO GGGG %
% L O O G %
% L O O G GG %
% L O O G G %
% LLLLL OOO GGG %
% %
% %
% MagickCore Log Events %
% %
% Software Design %
% Cristy %
% September 2002 %
% %
% %
% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% https://imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/client.h"
#include "magick/configure.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/hashmap.h"
#include "magick/log.h"
#include "magick/memory_.h"
#include "magick/nt-base-private.h"
#include "magick/option.h"
#include "magick/semaphore.h"
#include "magick/timer.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/token.h"
#include "magick/thread_.h"
#include "magick/thread-private.h"
#include "magick/timer-private.h"
#include "magick/utility.h"
#include "magick/utility-private.h"
#include "magick/version.h"
#include "magick/xml-tree.h"
#include "magick/xml-tree-private.h"
/*
Define declarations.
*/
#define LogFilename "log.xml"
/*
Typedef declarations.
*/
typedef enum
{
UndefinedHandler = 0x0000,
NoHandler = 0x0000,
ConsoleHandler = 0x0001,
StdoutHandler = 0x0002,
StderrHandler = 0x0004,
FileHandler = 0x0008,
DebugHandler = 0x0010,
EventHandler = 0x0020,
MethodHandler = 0x0040
} LogHandlerType;
typedef struct _EventInfo
{
char
*name;
LogEventType
event;
} EventInfo;
typedef struct _HandlerInfo
{
const char
name[10];
LogHandlerType
handler;
} HandlerInfo;
struct _LogInfo
{
LogEventType
event_mask;
LogHandlerType
handler_mask;
char
*path,
*name,
*filename,
*format;
size_t
generations,
limit;
FILE
*file;
size_t
generation;
MagickBooleanType
append,
stealth;
TimerInfo
timer;
MagickLogMethod
method;
SemaphoreInfo
*event_semaphore;
size_t
signature;
};
typedef struct _LogMapInfo
{
const LogEventType
event_mask;
const LogHandlerType
handler_mask;
const char
*filename,
*format;
} LogMapInfo;
/*
Static declarations.
*/
static const HandlerInfo
LogHandlers[32] =
{
{ "Console", ConsoleHandler },
{ "Debug", DebugHandler },
{ "Event", EventHandler },
{ "File", FileHandler },
{ "None", NoHandler },
{ "Stderr", StderrHandler },
{ "Stdout", StdoutHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler },
{ "", UndefinedHandler }
};
static const LogMapInfo
LogMap[] =
{
{ NoEvents, ConsoleHandler, "Magick-%g.log",
"%t %r %u %v %d %c[%p]: %m/%f/%l/%d\\n %e" }
};
static char
log_name[MaxTextExtent] = "Magick";
static LinkedListInfo
*log_cache = (LinkedListInfo *) NULL;
static MagickBooleanType
event_logging = MagickFalse;
static SemaphoreInfo
*log_semaphore = (SemaphoreInfo *) NULL;
/*
Forward declarations.
*/
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
static LogHandlerType
ParseLogHandlers(const char *) magick_attribute((__pure__));
#endif
static LogInfo
*GetLogInfo(const char *,ExceptionInfo *);
static MagickBooleanType
IsLogCacheInstantiated(ExceptionInfo *) magick_attribute((__pure__));
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
static MagickBooleanType
LoadLogCache(LinkedListInfo *,const char *,const char *,const size_t,
ExceptionInfo *);
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e L o g C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireLogCache() caches one or more log configurations which provides a
% mapping between log attributes and log name.
%
% The format of the AcquireLogCache method is:
%
% LinkedListInfo *AcquireLogCache(const char *filename,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: the log configuration filename.
%
% o exception: return any errors or warnings in this structure.
%
*/
static LinkedListInfo *AcquireLogCache(const char *filename,
ExceptionInfo *exception)
{
LinkedListInfo
*cache;
MagickStatusType
status;
ssize_t
i;
/*
Load external log map.
*/
cache=NewLinkedList(0);
if (cache == (LinkedListInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
status=MagickTrue;
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
{
const StringInfo
*option;
LinkedListInfo
*options;
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
status&=LoadLogCache(cache,(const char *) GetStringInfoDatum(option),
GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
}
#endif
/*
Load built-in log map.
*/
for (i=0; i < (ssize_t) (sizeof(LogMap)/sizeof(*LogMap)); i++)
{
LogInfo
*log_info;
const LogMapInfo
*p;
p=LogMap+i;
log_info=(LogInfo *) AcquireMagickMemory(sizeof(*log_info));
if (log_info == (LogInfo *) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",p->filename);
continue;
}
(void) memset(log_info,0,sizeof(*log_info));
log_info->path=ConstantString("[built-in]");
GetTimerInfo((TimerInfo *) &log_info->timer);
log_info->event_mask=p->event_mask;
log_info->handler_mask=p->handler_mask;
log_info->filename=ConstantString(p->filename);
log_info->format=ConstantString(p->format);
log_info->signature=MagickCoreSignature;
status&=AppendValueToLinkedList(cache,log_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",log_info->name);
}
return(cache);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% C l o s e M a g i c k L o g %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% CloseMagickLog() closes the Magick log.
%
% The format of the CloseMagickLog method is:
%
% CloseMagickLog(void)
%
*/
MagickExport void CloseMagickLog(void)
{
ExceptionInfo
*exception;
LogInfo
*log_info;
if (IsEventLogging() == MagickFalse)
return;
exception=AcquireExceptionInfo();
log_info=GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
LockSemaphoreInfo(log_semaphore);
if (log_info->file != (FILE *) NULL)
{
(void) FormatLocaleFile(log_info->file,"</log>\n");
(void) fclose(log_info->file);
log_info->file=(FILE *) NULL;
}
UnlockSemaphoreInfo(log_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t L o g I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetLogInfo() searches the log list for the specified name and if found
% returns attributes for that log.
%
% The format of the GetLogInfo method is:
%
% LogInfo *GetLogInfo(const char *name,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o name: the log name.
%
% o exception: return any errors or warnings in this structure.
%
*/
static LogInfo *GetLogInfo(const char *name,ExceptionInfo *exception)
{
LogInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if (IsLogCacheInstantiated(exception) == MagickFalse)
return((LogInfo *) NULL);
/*
Search for log tag.
*/
LockSemaphoreInfo(log_semaphore);
ResetLinkedListIterator(log_cache);
p=(LogInfo *) GetNextValueInLinkedList(log_cache);
if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
{
UnlockSemaphoreInfo(log_semaphore);
return(p);
}
while (p != (LogInfo *) NULL)
{
if (LocaleCompare(name,p->name) == 0)
break;
p=(LogInfo *) GetNextValueInLinkedList(log_cache);
}
if (p != (LogInfo *) NULL)
(void) InsertValueInLinkedList(log_cache,0,
RemoveElementByValueFromLinkedList(log_cache,p));
UnlockSemaphoreInfo(log_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t L o g I n f o L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetLogInfoList() returns any logs that match the specified pattern.
%
% The format of the GetLogInfoList function is:
%
% const LogInfo **GetLogInfoList(const char *pattern,
% size_t *number_preferences,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_preferences: This integer returns the number of logs in the list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int LogInfoCompare(const void *x,const void *y)
{
const LogInfo
**p,
**q;
p=(const LogInfo **) x,
q=(const LogInfo **) y;
if (LocaleCompare((*p)->path,(*q)->path) == 0)
return(LocaleCompare((*p)->name,(*q)->name));
return(LocaleCompare((*p)->path,(*q)->path));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport const LogInfo **GetLogInfoList(const char *pattern,
size_t *number_preferences,ExceptionInfo *exception)
{
const LogInfo
**preferences;
const LogInfo
*p;
ssize_t
i;
/*
Allocate log list.
*/
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
assert(number_preferences != (size_t *) NULL);
*number_preferences=0;
p=GetLogInfo("*",exception);
if (p == (const LogInfo *) NULL)
return((const LogInfo **) NULL);
preferences=(const LogInfo **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(log_cache)+1UL,sizeof(*preferences));
if (preferences == (const LogInfo **) NULL)
return((const LogInfo **) NULL);
/*
Generate log list.
*/
LockSemaphoreInfo(log_semaphore);
ResetLinkedListIterator(log_cache);
p=(const LogInfo *) GetNextValueInLinkedList(log_cache);
for (i=0; p != (const LogInfo *) NULL; )
{
if ((p->stealth == MagickFalse) &&
(GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
preferences[i++]=p;
p=(const LogInfo *) GetNextValueInLinkedList(log_cache);
}
UnlockSemaphoreInfo(log_semaphore);
qsort((void *) preferences,(size_t) i,sizeof(*preferences),LogInfoCompare);
preferences[i]=(LogInfo *) NULL;
*number_preferences=(size_t) i;
return(preferences);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t L o g L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetLogList() returns any logs that match the specified pattern.
%
% The format of the GetLogList function is:
%
% char **GetLogList(const char *pattern,size_t *number_preferences,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_preferences: This integer returns the number of logs in the list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int LogCompare(const void *x,const void *y)
{
const char
**p,
**q;
p=(const char **) x;
q=(const char **) y;
return(LocaleCompare(*p,*q));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport char **GetLogList(const char *pattern,
size_t *number_preferences,ExceptionInfo *exception)
{
char
**preferences;
const LogInfo
*p;
ssize_t
i;
/*
Allocate log list.
*/
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
assert(number_preferences != (size_t *) NULL);
*number_preferences=0;
p=GetLogInfo("*",exception);
if (p == (const LogInfo *) NULL)
return((char **) NULL);
preferences=(char **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(log_cache)+1UL,sizeof(*preferences));
if (preferences == (char **) NULL)
return((char **) NULL);
/*
Generate log list.
*/
LockSemaphoreInfo(log_semaphore);
ResetLinkedListIterator(log_cache);
p=(const LogInfo *) GetNextValueInLinkedList(log_cache);
for (i=0; p != (const LogInfo *) NULL; )
{
if ((p->stealth == MagickFalse) &&
(GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
preferences[i++]=ConstantString(p->name);
p=(const LogInfo *) GetNextValueInLinkedList(log_cache);
}
UnlockSemaphoreInfo(log_semaphore);
qsort((void *) preferences,(size_t) i,sizeof(*preferences),LogCompare);
preferences[i]=(char *) NULL;
*number_preferences=(size_t) i;
return(preferences);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t L o g N a m e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetLogName() returns the current log name.
%
% The format of the GetLogName method is:
%
% const char *GetLogName(void)
%
*/
MagickExport const char *GetLogName(void)
{
return(log_name);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ I s L o g C a c h e I n s t a n t i a t e d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsLogCacheInstantiated() determines if the log list is instantiated. If
% not, it instantiates the list and returns it.
%
% The format of the IsLogInstantiated method is:
%
% MagickBooleanType IsLogCacheInstantiated(ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o exception: return any errors or warnings in this structure.
%
*/
static inline void CheckEventLogging()
{
/*
Are we logging events?
*/
if (IsLinkedListEmpty(log_cache) != MagickFalse)
event_logging=MagickFalse;
else
{
LogInfo
*p;
ResetLinkedListIterator(log_cache);
p=(LogInfo *) GetNextValueInLinkedList(log_cache);
event_logging=(p != (LogInfo *) NULL) && (p->event_mask != NoEvents) ?
MagickTrue: MagickFalse;
}
}
static MagickBooleanType IsLogCacheInstantiated(ExceptionInfo *exception)
{
if (log_cache == (LinkedListInfo *) NULL)
{
if (log_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&log_semaphore);
LockSemaphoreInfo(log_semaphore);
if (log_cache == (LinkedListInfo *) NULL)
{
log_cache=AcquireLogCache(LogFilename,exception);
CheckEventLogging();
}
UnlockSemaphoreInfo(log_semaphore);
}
return(log_cache != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s E v e n t L o g g i n g %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsEventLogging() returns MagickTrue if debug of events is enabled otherwise
% MagickFalse.
%
% The format of the IsEventLogging method is:
%
% MagickBooleanType IsEventLogging(void)
%
*/
MagickExport MagickBooleanType IsEventLogging(void)
{
return(event_logging);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L i s t L o g I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ListLogInfo() lists the log info to a file.
%
% The format of the ListLogInfo method is:
%
% MagickBooleanType ListLogInfo(FILE *file,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o file: An pointer to a FILE.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport MagickBooleanType ListLogInfo(FILE *file,ExceptionInfo *exception)
{
#define MegabytesToBytes(value) ((MagickSizeType) (value)*1024*1024)
const char
*path;
const LogInfo
**log_info;
ssize_t
i;
size_t
number_aliases;
ssize_t
j;
if (file == (const FILE *) NULL)
file=stdout;
log_info=GetLogInfoList("*",&number_aliases,exception);
if (log_info == (const LogInfo **) NULL)
return(MagickFalse);
j=0;
path=(const char *) NULL;
for (i=0; i < (ssize_t) number_aliases; i++)
{
if (log_info[i]->stealth != MagickFalse)
continue;
if ((path == (const char *) NULL) ||
(LocaleCompare(path,log_info[i]->path) != 0))
{
size_t
length;
if (log_info[i]->path != (char *) NULL)
(void) FormatLocaleFile(file,"\nPath: %s\n\n",log_info[i]->path);
length=0;
for (j=0; j < (ssize_t) (8*sizeof(LogHandlerType)); j++)
{
size_t
mask;
if (*LogHandlers[j].name == '\0')
break;
mask=1;
mask<<=j;
if ((log_info[i]->handler_mask & mask) != 0)
{
(void) FormatLocaleFile(file,"%s ",LogHandlers[j].name);
length+=strlen(LogHandlers[j].name);
}
}
for (j=(ssize_t) length; j <= 12; j++)
(void) FormatLocaleFile(file," ");
(void) FormatLocaleFile(file," Generations Limit Format\n");
(void) FormatLocaleFile(file,"-----------------------------------------"
"--------------------------------------\n");
}
path=log_info[i]->path;
if (log_info[i]->filename != (char *) NULL)
{
(void) FormatLocaleFile(file,"%s",log_info[i]->filename);
for (j=(ssize_t) strlen(log_info[i]->filename); j <= 16; j++)
(void) FormatLocaleFile(file," ");
}
(void) FormatLocaleFile(file,"%9g ",(double) log_info[i]->generations);
(void) FormatLocaleFile(file,"%8g ",(double) log_info[i]->limit);
if (log_info[i]->format != (char *) NULL)
(void) FormatLocaleFile(file,"%s",log_info[i]->format);
(void) FormatLocaleFile(file,"\n");
}
(void) fflush(file);
log_info=(const LogInfo **) RelinquishMagickMemory((void *) log_info);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o g C o m p o n e n t G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LogComponentGenesis() instantiates the log component.
%
% The format of the LogComponentGenesis method is:
%
% MagickBooleanType LogComponentGenesis(void)
%
*/
MagickExport MagickBooleanType LogComponentGenesis(void)
{
ExceptionInfo
*exception;
if (log_semaphore == (SemaphoreInfo *) NULL)
log_semaphore=AllocateSemaphoreInfo();
exception=AcquireExceptionInfo();
(void) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o g C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LogComponentTerminus() destroys the logging component.
%
% The format of the LogComponentTerminus method is:
%
% LogComponentTerminus(void)
%
*/
static void *DestroyLogElement(void *log_info)
{
LogInfo
*p;
p=(LogInfo *) log_info;
if (p->file != (FILE *) NULL)
{
(void) FormatLocaleFile(p->file,"</log>\n");
(void) fclose(p->file);
p->file=(FILE *) NULL;
}
if (p->format != (char *) NULL)
p->format=DestroyString(p->format);
if (p->path != (char *) NULL)
p->path=DestroyString(p->path);
if (p->filename != (char *) NULL)
p->filename=DestroyString(p->filename);
if (p->event_semaphore != (SemaphoreInfo *) NULL)
DestroySemaphoreInfo(&p->event_semaphore);
p=(LogInfo *) RelinquishMagickMemory(p);
return((void *) NULL);
}
MagickExport void LogComponentTerminus(void)
{
if (log_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&log_semaphore);
LockSemaphoreInfo(log_semaphore);
if (log_cache != (LinkedListInfo *) NULL)
log_cache=DestroyLinkedList(log_cache,DestroyLogElement);
event_logging=MagickFalse;
UnlockSemaphoreInfo(log_semaphore);
DestroySemaphoreInfo(&log_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L o g M a g i c k E v e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LogMagickEvent() logs an event as determined by the log configuration file.
% If an error occurs, MagickFalse is returned otherwise MagickTrue.
%
% The format of the LogMagickEvent method is:
%
% MagickBooleanType LogMagickEvent(const LogEventType type,
% const char *module,const char *function,const size_t line,
% const char *format,...)
%
% A description of each parameter follows:
%
% o type: the event type.
%
% o filename: the source module filename.
%
% o function: the function name.
%
% o line: the line number of the source module.
%
% o format: the output format.
%
*/
static char *TranslateEvent(const LogEventType magick_unused(type),
const char *module,const char *function,const size_t line,const char *domain,
const char *event)
{
char
*text;
double
elapsed_time,
user_time;
ExceptionInfo
*exception;
LogInfo
*log_info;
char
*q;
const char
*p;
size_t
extent;
time_t
seconds;
magick_unreferenced(type);
exception=AcquireExceptionInfo();
log_info=(LogInfo *) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
seconds=GetMagickTime();
elapsed_time=GetElapsedTime(&log_info->timer);
user_time=GetUserTime(&log_info->timer);
text=AcquireString(event);
if (log_info->format == (char *) NULL)
return(text);
extent=strlen(event)+MaxTextExtent;
if (LocaleCompare(log_info->format,"xml") == 0)
{
char
timestamp[MaxTextExtent];
/*
Translate event in "XML" format.
*/
(void) FormatMagickTime(seconds,extent,timestamp);
(void) FormatLocaleString(text,extent,
"<entry>\n"
" <timestamp>%s</timestamp>\n"
" <elapsed-time>%lu:%02lu.%06lu</elapsed-time>\n"
" <user-time>%0.3f</user-time>\n"
" <process-id>%.20g</process-id>\n"
" <thread-id>%.20g</thread-id>\n"
" <module>%s</module>\n"
" <function>%s</function>\n"
" <line>%.20g</line>\n"
" <domain>%s</domain>\n"
" <event>%s</event>\n"
"</entry>",timestamp,(unsigned long) (elapsed_time/60.0),
(unsigned long) floor(fmod(elapsed_time,60.0)),(unsigned long)
(1000000.0*(elapsed_time-floor(elapsed_time))+0.5),user_time,
(double) getpid(),(double) GetMagickThreadSignature(),module,function,
(double) line,domain,event);
return(text);
}
/*
Translate event in "human readable" format.
*/
q=text;
for (p=log_info->format; *p != '\0'; p++)
{
*q='\0';
if ((size_t) (q-text+MaxTextExtent) >= extent)
{
extent+=MaxTextExtent;
text=(char *) ResizeQuantumMemory(text,extent+MaxTextExtent,
sizeof(*text));
if (text == (char *) NULL)
return((char *) NULL);
q=text+strlen(text);
}
/*
The format of the log is defined by embedding special format characters:
%c client name
%d domain
%e event
%f function
%g generation
%i thread id
%l line
%m module
%n log name
%p process id
%r real CPU time
%t wall clock time
%u user CPU time
%v version
%% percent sign
\n newline
\r carriage return
*/
if ((*p == '\\') && (*(p+1) == 'r'))
{
*q++='\r';
p++;
continue;
}
if ((*p == '\\') && (*(p+1) == 'n'))
{
*q++='\n';
p++;
continue;
}
if (*p != '%')
{
*q++=(*p);
continue;
}
p++;
if (*p == '\0')
break;
switch (*p)
{
case 'c':
{
q+=CopyMagickString(q,GetClientName(),extent);
break;
}
case 'd':
{
q+=CopyMagickString(q,domain,extent);
break;
}
case 'e':
{
q+=CopyMagickString(q,event,extent);
break;
}
case 'f':
{
q+=CopyMagickString(q,function,extent);
break;
}
case 'g':
{
if (log_info->generations == 0)
{
(void) CopyMagickString(q,"0",extent);
q++;
break;
}
q+=FormatLocaleString(q,extent,"%.20g",(double) (log_info->generation %
log_info->generations));
break;
}
case 'i':
{
q+=FormatLocaleString(q,extent,"%.20g",(double)
GetMagickThreadSignature());
break;
}
case 'l':
{
q+=FormatLocaleString(q,extent,"%.20g",(double) line);
break;
}
case 'm':
{
const char
*p;
for (p=module+strlen(module)-1; p > module; p--)
if (*p == *DirectorySeparator)
{
p++;
break;
}
q+=CopyMagickString(q,p,extent);
break;
}
case 'n':
{
q+=CopyMagickString(q,GetLogName(),extent);
break;
}
case 'p':
{
q+=FormatLocaleString(q,extent,"%.20g",(double) getpid());
break;
}
case 'r':
{
q+=FormatLocaleString(q,extent,"%lu:%02lu.%03lu",(unsigned long)
(elapsed_time/60.0),(unsigned long) floor(fmod(elapsed_time,60.0)),
(unsigned long) (1000.0*(elapsed_time-floor(elapsed_time))+0.5));
break;
}
case 't':
{
q+=FormatMagickTime(seconds,extent,q);
break;
}
case 'u':
{
q+=FormatLocaleString(q,extent,"%0.3fu",user_time);
break;
}
case 'v':
{
q+=CopyMagickString(q,MagickLibVersionText,extent);
break;
}
case '%':
{
*q++=(*p);
break;
}
default:
{
*q++='%';
*q++=(*p);
break;
}
}
}
*q='\0';
return(text);
}
static char *TranslateFilename(const LogInfo *log_info)
{
char
*filename;
char
*q;
const char
*p;
size_t
extent;
/*
Translate event in "human readable" format.
*/
assert(log_info != (LogInfo *) NULL);
assert(log_info->filename != (char *) NULL);
filename=AcquireString((char *) NULL);
extent=MaxTextExtent;
q=filename;
for (p=log_info->filename; *p != '\0'; p++)
{
*q='\0';
if ((size_t) (q-filename+MaxTextExtent) >= extent)
{
extent+=MaxTextExtent;
filename=(char *) ResizeQuantumMemory(filename,extent+MaxTextExtent,
sizeof(*filename));
if (filename == (char *) NULL)
return((char *) NULL);
q=filename+strlen(filename);
}
/*
The format of the filename is defined by embedding special format
characters:
%c client name
%n log name
%p process id
%v version
%% percent sign
*/
if (*p != '%')
{
*q++=(*p);
continue;
}
p++;
if (*p == '\0')
break;
switch (*p)
{
case '\0':
{
p--;
break;
}
case 'c':
{
q+=CopyMagickString(q,GetClientName(),extent);
break;
}
case 'g':
{
if (log_info->generations == 0)
{
(void) CopyMagickString(q,"0",extent);
q++;
break;
}
q+=FormatLocaleString(q,extent,"%.20g",(double) (log_info->generation %
log_info->generations));
break;
}
case 'n':
{
q+=CopyMagickString(q,GetLogName(),extent);
break;
}
case 'p':
{
q+=FormatLocaleString(q,extent,"%.20g",(double) getpid());
break;
}
case 'v':
{
q+=CopyMagickString(q,MagickLibVersionText,extent);
break;
}
case '%':
{
*q++=(*p);
break;
}
default:
{
*q++='%';
*q++=(*p);
break;
}
}
}
*q='\0';
return(filename);
}
MagickExport MagickBooleanType LogMagickEventList(const LogEventType type,
const char *module,const char *function,const size_t line,const char *format,
va_list operands)
{
char
event[MaxTextExtent],
*text;
const char
*domain;
ExceptionInfo
*exception;
int
n;
LogInfo
*log_info;
exception=AcquireExceptionInfo();
log_info=(LogInfo *) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
if (log_info->event_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&log_info->event_semaphore);
LockSemaphoreInfo(log_info->event_semaphore);
if ((log_info->event_mask & type) == 0)
{
UnlockSemaphoreInfo(log_info->event_semaphore);
return(MagickTrue);
}
domain=CommandOptionToMnemonic(MagickLogEventOptions,type);
#if defined(MAGICKCORE_HAVE_VSNPRINTF)
n=vsnprintf(event,MaxTextExtent,format,operands);
#else
n=vsprintf(event,format,operands);
#endif
if (n < 0)
event[MaxTextExtent-1]='\0';
text=TranslateEvent(type,module,function,line,domain,event);
if (text == (char *) NULL)
{
(void) ContinueTimer((TimerInfo *) &log_info->timer);
UnlockSemaphoreInfo(log_info->event_semaphore);
return(MagickFalse);
}
if ((log_info->handler_mask & ConsoleHandler) != 0)
{
(void) FormatLocaleFile(stderr,"%s\n",text);
(void) fflush(stderr);
}
if ((log_info->handler_mask & DebugHandler) != 0)
{
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
OutputDebugString(text);
OutputDebugString("\n");
#endif
}
if ((log_info->handler_mask & EventHandler) != 0)
{
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
(void) NTReportEvent(text,MagickFalse);
#endif
}
if ((log_info->handler_mask & FileHandler) != 0)
{
struct stat
file_info;
file_info.st_size=0;
if (log_info->file != (FILE *) NULL)
(void) fstat(fileno(log_info->file),&file_info);
if (file_info.st_size > (MagickOffsetType) (1024*1024*log_info->limit))
{
(void) FormatLocaleFile(log_info->file,"</log>\n");
(void) fclose(log_info->file);
log_info->file=(FILE *) NULL;
}
if (log_info->file == (FILE *) NULL)
{
char
*filename;
filename=TranslateFilename(log_info);
if (filename == (char *) NULL)
{
(void) ContinueTimer((TimerInfo *) &log_info->timer);
UnlockSemaphoreInfo(log_info->event_semaphore);
return(MagickFalse);
}
log_info->append=IsPathAccessible(filename);
log_info->file=fopen_utf8(filename,"ab");
filename=(char *) RelinquishMagickMemory(filename);
if (log_info->file == (FILE *) NULL)
{
UnlockSemaphoreInfo(log_info->event_semaphore);
return(MagickFalse);
}
log_info->generation++;
if (log_info->append == MagickFalse)
(void) FormatLocaleFile(log_info->file,"<?xml version=\"1.0\" "
"encoding=\"UTF-8\" standalone=\"yes\"?>\n");
(void) FormatLocaleFile(log_info->file,"<log>\n");
}
(void) FormatLocaleFile(log_info->file," <event>%s</event>\n",text);
(void) fflush(log_info->file);
}
if ((log_info->handler_mask & MethodHandler) != 0)
{
if (log_info->method != (MagickLogMethod) NULL)
log_info->method(type,text);
}
if ((log_info->handler_mask & StdoutHandler) != 0)
{
(void) FormatLocaleFile(stdout,"%s\n",text);
(void) fflush(stdout);
}
if ((log_info->handler_mask & StderrHandler) != 0)
{
(void) FormatLocaleFile(stderr,"%s\n",text);
(void) fflush(stderr);
}
text=(char *) RelinquishMagickMemory(text);
(void) ContinueTimer((TimerInfo *) &log_info->timer);
UnlockSemaphoreInfo(log_info->event_semaphore);
return(MagickTrue);
}
MagickExport MagickBooleanType LogMagickEvent(const LogEventType type,
const char *module,const char *function,const size_t line,
const char *format,...)
{
va_list
operands;
MagickBooleanType
status;
if (IsEventLogging() == MagickFalse)
return(MagickFalse);
va_start(operands,format);
status=LogMagickEventList(type,module,function,line,format,operands);
va_end(operands);
return(status);
}
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o a d L o g C a c h e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadLogCache() loads the log configurations which provides a
% mapping between log attributes and log name.
%
% The format of the LoadLogCache method is:
%
% MagickBooleanType LoadLogCache(LinkedListInfo *cache,const char *xml,
% const char *filename,const size_t depth,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o xml: The log list in XML format.
%
% o filename: The log list filename.
%
% o depth: depth of <include /> statements.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadLogCache(LinkedListInfo *cache,const char *xml,
const char *filename,const size_t depth,ExceptionInfo *exception)
{
char
keyword[MaxTextExtent],
*token;
const char
*q;
LogInfo
*log_info = (LogInfo *) NULL;
MagickStatusType
status;
size_t
extent;
/*
Load the log map file.
*/
if (xml == (const char *) NULL)
return(MagickFalse);
status=MagickTrue;
token=AcquireString(xml);
extent=strlen(token)+MaxTextExtent;
for (q=(const char *) xml; *q != '\0'; )
{
/*
Interpret XML.
*/
(void) GetNextToken(q,&q,extent,token);
if (*token == '\0')
break;
(void) CopyMagickString(keyword,token,MaxTextExtent);
if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
{
/*
Doctype element.
*/
while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
(void) GetNextToken(q,&q,extent,token);
continue;
}
if (LocaleNCompare(keyword,"<!--",4) == 0)
{
/*
Comment element.
*/
while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
(void) GetNextToken(q,&q,extent,token);
continue;
}
if (LocaleCompare(keyword,"<include") == 0)
{
/*
Include element.
*/
while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
{
(void) CopyMagickString(keyword,token,MaxTextExtent);
(void) GetNextToken(q,&q,extent,token);
if (*token != '=')
continue;
(void) GetNextToken(q,&q,extent,token);
if (LocaleCompare(keyword,"file") == 0)
{
if (depth > MagickMaxRecursionDepth)
(void) ThrowMagickException(exception,GetMagickModule(),
ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
else
{
char
path[MaxTextExtent],
*xml;
GetPathComponent(filename,HeadPath,path);
if (*path != '\0')
(void) ConcatenateMagickString(path,DirectorySeparator,
MaxTextExtent);
if (*token == *DirectorySeparator)
(void) CopyMagickString(path,token,MaxTextExtent);
else
(void) ConcatenateMagickString(path,token,MaxTextExtent);
xml=FileToXML(path,~0UL);
if (xml != (char *) NULL)
{
status&=LoadLogCache(cache,xml,path,depth+1,
exception);
xml=DestroyString(xml);
}
}
}
}
continue;
}
if (LocaleCompare(keyword,"<logmap>") == 0)
{
/*
Allocate memory for the log list.
*/
log_info=(LogInfo *) AcquireMagickMemory(sizeof(*log_info));
if (log_info == (LogInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) memset(log_info,0,sizeof(*log_info));
log_info->path=ConstantString(filename);
GetTimerInfo((TimerInfo *) &log_info->timer);
log_info->signature=MagickCoreSignature;
continue;
}
if (log_info == (LogInfo *) NULL)
continue;
if (LocaleCompare(keyword,"</logmap>") == 0)
{
status=AppendValueToLinkedList(cache,log_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",filename);
log_info=(LogInfo *) NULL;
continue;
}
(void) GetNextToken(q,(const char **) NULL,extent,token);
if (*token != '=')
continue;
(void) GetNextToken(q,&q,extent,token);
(void) GetNextToken(q,&q,extent,token);
switch (*keyword)
{
case 'E':
case 'e':
{
if (LocaleCompare((char *) keyword,"events") == 0)
{
log_info->event_mask=(LogEventType) (log_info->event_mask |
ParseCommandOption(MagickLogEventOptions,MagickTrue,token));
break;
}
break;
}
case 'F':
case 'f':
{
if (LocaleCompare((char *) keyword,"filename") == 0)
{
if (log_info->filename != (char *) NULL)
log_info->filename=(char *)
RelinquishMagickMemory(log_info->filename);
log_info->filename=ConstantString(token);
break;
}
if (LocaleCompare((char *) keyword,"format") == 0)
{
if (log_info->format != (char *) NULL)
log_info->format=(char *)
RelinquishMagickMemory(log_info->format);
log_info->format=ConstantString(token);
break;
}
break;
}
case 'G':
case 'g':
{
if (LocaleCompare((char *) keyword,"generations") == 0)
{
if (LocaleCompare(token,"unlimited") == 0)
{
log_info->generations=(~0UL);
break;
}
log_info->generations=StringToUnsignedLong(token);
break;
}
break;
}
case 'L':
case 'l':
{
if (LocaleCompare((char *) keyword,"limit") == 0)
{
if (LocaleCompare(token,"unlimited") == 0)
{
log_info->limit=(~0UL);
break;
}
log_info->limit=StringToUnsignedLong(token);
break;
}
break;
}
case 'O':
case 'o':
{
if (LocaleCompare((char *) keyword,"output") == 0)
{
log_info->handler_mask=(LogHandlerType)
(log_info->handler_mask | ParseLogHandlers(token));
break;
}
break;
}
default:
break;
}
}
token=DestroyString(token);
if (cache == (LinkedListInfo *) NULL)
return(MagickFalse);
return(status != 0 ? MagickTrue : MagickFalse);
}
#endif
#if !MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ P a r s e L o g H a n d l e r s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ParseLogHandlers() parses a string defining which handlers takes a log
% message and exports them.
%
% The format of the ParseLogHandlers method is:
%
% LogHandlerType ParseLogHandlers(const char *handlers)
%
% A description of each parameter follows:
%
% o handlers: one or more handlers separated by commas.
%
*/
static LogHandlerType ParseLogHandlers(const char *handlers)
{
LogHandlerType
handler_mask;
const char
*p;
ssize_t
i;
size_t
length;
handler_mask=NoHandler;
for (p=handlers; p != (char *) NULL; p=strchr(p,','))
{
while ((*p != '\0') && ((isspace((int) ((unsigned char) *p)) != 0) ||
(*p == ',')))
p++;
for (i=0; *LogHandlers[i].name != '\0'; i++)
{
length=strlen(LogHandlers[i].name);
if (LocaleNCompare(p,LogHandlers[i].name,length) == 0)
{
handler_mask=(LogHandlerType) (handler_mask | LogHandlers[i].handler);
break;
}
}
if (*LogHandlers[i].name == '\0')
return(UndefinedHandler);
}
return(handler_mask);
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t L o g E v e n t M a s k %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetLogEventMask() accepts a list that determines which events to log. All
% other events are ignored. By default, no debug is enabled. This method
% returns the previous log event mask.
%
% The format of the SetLogEventMask method is:
%
% LogEventType SetLogEventMask(const char *events)
%
% A description of each parameter follows:
%
% o events: log these events.
%
*/
MagickExport LogEventType SetLogEventMask(const char *events)
{
ExceptionInfo
*exception;
LogInfo
*log_info;
ssize_t
option;
exception=AcquireExceptionInfo();
log_info=(LogInfo *) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
option=ParseCommandOption(MagickLogEventOptions,MagickTrue,events);
LockSemaphoreInfo(log_semaphore);
log_info=(LogInfo *) GetValueFromLinkedList(log_cache,0);
log_info->event_mask=(LogEventType) option;
if (option == -1)
log_info->event_mask=UndefinedEvents;
CheckEventLogging();
UnlockSemaphoreInfo(log_semaphore);
return(log_info->event_mask);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t L o g F o r m a t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetLogFormat() sets the format for the "human readable" log record.
%
% The format of the LogMagickFormat method is:
%
% SetLogFormat(const char *format)
%
% A description of each parameter follows:
%
% o format: the log record format.
%
*/
MagickExport void SetLogFormat(const char *format)
{
LogInfo
*log_info;
ExceptionInfo
*exception;
exception=AcquireExceptionInfo();
log_info=(LogInfo *) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
LockSemaphoreInfo(log_semaphore);
if (log_info->format != (char *) NULL)
log_info->format=DestroyString(log_info->format);
log_info->format=ConstantString(format);
UnlockSemaphoreInfo(log_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t L o g M e t h o d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetLogMethod() sets the method that will be called when an event is logged.
%
% The format of the SetLogMethod method is:
%
% void SetLogMethod(MagickLogMethod method)
%
% A description of each parameter follows:
%
% o method: pointer to a method that will be called when LogMagickEvent is
% being called.
%
*/
MagickExport void SetLogMethod(MagickLogMethod method)
{
ExceptionInfo
*exception;
LogInfo
*log_info;
exception=AcquireExceptionInfo();
log_info=(LogInfo *) GetLogInfo("*",exception);
exception=DestroyExceptionInfo(exception);
LockSemaphoreInfo(log_semaphore);
log_info=(LogInfo *) GetValueFromLinkedList(log_cache,0);
log_info->handler_mask=(LogHandlerType) (log_info->handler_mask |
MethodHandler);
log_info->method=method;
UnlockSemaphoreInfo(log_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t L o g N a m e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetLogName() sets the log name and returns it.
%
% The format of the SetLogName method is:
%
% const char *SetLogName(const char *name)
%
% A description of each parameter follows:
%
% o log_name: SetLogName() returns the current client name.
%
% o name: Specifies the new client name.
%
*/
MagickExport const char *SetLogName(const char *name)
{
if ((name != (char *) NULL) && (*name != '\0'))
(void) CopyMagickString(log_name,name,MaxTextExtent);
return(log_name);
}