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ACE_Log_Msg Class Reference

Provides a variable length argument message logging abstraction. More...

#include <Log_Msg.h>

Collaboration diagram for ACE_Log_Msg:
Collaboration graph
[legend]

Public Types

enum  {
  STDERR = 1, LOGGER = 2, OSTREAM = 4, MSG_CALLBACK = 8,
  VERBOSE = 16, VERBOSE_LITE = 32, SILENT = 64, SYSLOG = 128,
  CUSTOM = 256
}
 
enum  MASK_TYPE { PROCESS = 0, THREAD = 1 }
 

Public Member Functions

 ACE_Log_Msg (void)
 Initialize logger. More...
 
 ~ACE_Log_Msg (void)
 cleanup logger. More...
 
int open (const ACE_TCHAR *prog_name, u_long options_flags=ACE_Log_Msg::STDERR, const ACE_TCHAR *logger_key=0)
 Initialize the ACE logging facility. More...
 
void set_flags (u_long f)
 
void clr_flags (u_long f)
 
u_long flags (void)
 
void sync (const ACE_TCHAR *program_name)
 
void op_status (int status)
 
int op_status (void) const
 
void errnum (int)
 
int errnum (void) const
 
void linenum (int)
 Set the line number where an error occurred. More...
 
int linenum (void) const
 Get the line number where an error occurred. More...
 
void file (const char *)
 Set the file name where an error occurred. More...
 
const char * file (void)
 Get the file name where an error occurred. More...
 
void msg (const ACE_TCHAR *)
 Set the message that describes what type of error occurred. More...
 
const ACE_TCHARmsg (void)
 Get the message that describes what type of error occurred. More...
 
void restart (bool r)
 
bool restart (void) const
 
void msg_ostream (ACE_OSTREAM_TYPE *)
 Update the ostream without overwriting the delete_ostream_ flag. More...
 
void msg_ostream (ACE_OSTREAM_TYPE *, bool delete_ostream)
 
ACE_OSTREAM_TYPE * msg_ostream (void) const
 Get the ostream that is used to print error messages. More...
 
ACE_Log_Msg_Callbackmsg_callback (ACE_Log_Msg_Callback *c)
 
ACE_Log_Msg_Callbackmsg_callback (void) const
 
int inc (void)
 Nesting depth increment. More...
 
int dec (void)
 Nesting depth decrement. More...
 
int trace_depth (void) const
 Get trace depth. More...
 
void trace_depth (int)
 Set trace depth. More...
 
bool trace_active (void) const
 Get trace active status. More...
 
void trace_active (bool value)
 Set trace active status. More...
 
ACE_Thread_Descriptorthr_desc (void) const
 Get the TSS thread descriptor. More...
 
void thr_desc (ACE_Thread_Descriptor *td)
 
void stop_tracing (void)
 Stop tracing status on a per-thread basis... More...
 
void start_tracing (void)
 Start tracing status on a per-thread basis... More...
 
bool tracing_enabled (void) const
 Query tracing status on a per-thread basis... More...
 
u_long priority_mask (MASK_TYPE=THREAD)
 Get the current ACE_Log_Priority mask. More...
 
u_long priority_mask (u_long, MASK_TYPE=THREAD)
 Set the ACE_Log_Priority mask, returns original mask. More...
 
int log_priority_enabled (ACE_Log_Priority log_priority)
 Return true if the requested priority is enabled. More...
 
int log_priority_enabled (ACE_Log_Priority log_priority, const char *,...)
 Return true if the requested priority is enabled. More...
 
pid_t getpid (void) const
 
const ACE_TCHARlocal_host (void) const
 Get the name of the local host. More...
 
void local_host (const ACE_TCHAR *)
 Set the name of the local host. More...
 
void set (const char *file, int line, int op_status=-1, int errnum=0, bool restart=true, ACE_OSTREAM_TYPE *os=0, ACE_Log_Msg_Callback *c=0)
 
void conditional_set (const char *file, int line, int op_status, int errnum)
 
ssize_t log (ACE_Log_Priority priority, const ACE_TCHAR *format,...)
 
ssize_t log (ACE_Log_Priority priority, const ACE_ANTI_TCHAR *format,...)
 
ssize_t log (const ACE_TCHAR *format, ACE_Log_Priority priority, va_list argp, ACE_Log_Category_TSS *category=0)
 
ssize_t log (ACE_Log_Record &log_record, int suppress_stderr=0)
 
int log_hexdump (ACE_Log_Priority log_priority, const char *buffer, size_t size, const ACE_TCHAR *text=0, ACE_Log_Category_TSS *category=0)
 
void dump (void) const
 Dump the state of an object. More...
 
Allow apps to acquire and release internal synchronization
   lock

This lock is used internally by the ACE_Log_Msg implementation. By exporting the lock, applications can hold the lock atomically over a number of calls to ACE_Log_Msg.

int acquire (void)
 Acquire the internal lock. More...
 
int release (void)
 Release the internal lock. More...
 

Static Public Member Functions

static ACE_Log_Msginstance (void)
 Returns a pointer to the Singleton. More...
 
static int last_error_adapter (void)
 Returns last error. More...
 
static int exists (void)
 Returns non-null if an ACE_Log_Msg exists for the calling thread. More...
 
static const ACE_TCHARprogram_name (void)
 Returns the current program name used for logging. More...
 
static void disable_debug_messages (ACE_Log_Priority priority=LM_DEBUG)
 
static void enable_debug_messages (ACE_Log_Priority priority=LM_DEBUG)
 
static ACE_Log_Msg_Backendmsg_backend (ACE_Log_Msg_Backend *b)
 
static ACE_Log_Msg_Backendmsg_backend (void)
 
static void init_hook (ACE_OS_Log_Msg_Attributes &attributes)
 
static void inherit_hook (ACE_OS_Thread_Descriptor *thr_desc, ACE_OS_Log_Msg_Attributes &attributes)
 

Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...
 
bool is_set_
 
const char * file_
 
int line_
 
int op_status_
 

Private Types

typedef ACE_Atomic_Op
< ACE_SYNCH_MUTEX, unsigned
long > 
Atomic_ULong
 

Private Member Functions

void cleanup_ostream ()
 
ACE_Log_Msgoperator= (const ACE_Log_Msg &)
 
 ACE_Log_Msg (const ACE_Log_Msg &)
 

Static Private Member Functions

static void close (void)
 For cleanup, at program termination. More...
 
static void sync_hook (const ACE_TCHAR *prg_name)
 Decouple the OS layer from the ACE_Log_Msg layer. More...
 
static ACE_OS_Thread_Descriptorthr_desc_hook (void)
 Return the TSS singleton thread descriptor. More...
 

Private Attributes

int status_
 Status of operation (-1 means failure, >= 0 means success). More...
 
int errnum_
 Type of error that occurred (see <sys/errno.h>). More...
 
int linenum_
 Line number where the error occurred. More...
 
char file_ [MAXPATHLEN+1]
 File where the error occurred. More...
 
ACE_TCHARmsg_
 
bool restart_
 
ACE_OSTREAM_TYPE * ostream_
 The ostream where logging messages can be written. More...
 
Atomic_ULongostream_refcount_
 
ACE_Log_Msg_Callbackmsg_callback_
 The callback object. More...
 
int trace_depth_
 Depth of the nesting for printing traces. More...
 
bool trace_active_
 Are we already within an ACE_Trace constructor call? More...
 
bool tracing_enabled_
 Are we allowing tracing in this thread? More...
 
ACE_Thread_Descriptorthr_desc_
 
u_long priority_mask_
 
int timestamp_
 Always timestamp? More...
 
struct {
   bool   is_set_
 
   const char *   file_
 
   int   line_
 
   int   op_status_
 
   int   errnum_
 
conditional_values_
 

Static Private Attributes

static u_long process_priority_mask_
 
static const ACE_TCHARprogram_name_ = 0
 Records the program name. More...
 
static const ACE_TCHARlocal_host_ = 0
 Name of the local host (used when printing messages). More...
 
static pid_t pid_ = -2
 Process id of the current process. More...
 
static u_long flags_ = ACE_Log_Msg::STDERR
 Default is to use stderr. More...
 
static ptrdiff_t msg_off_ = 0
 Offset of msg_[]. More...
 
static int instance_count_ = 0
 
static u_long default_priority_mask_ = 0
 

Detailed Description

Provides a variable length argument message logging abstraction.

This class is very flexible since it allows formatted error messages to be printed in a thread-safe manner to various locations, such as stderr, cerr, a distributed logger, etc. The current message is also kept in a thread-specific storage location (threads spawned using ACE_Thread_Manager automatically get an ACE_Log_Msg object that inherits the spawning thread's settings), which can be used to communicate errors between framework methods and callers. A message is logged by the log() method, only if the message priority is currently enabled. Moreover, only the current log message is stored here – it will be overwritten by the subsequent call to log().

The ACE_Log_Msg class uses two priority masks to control its logging behavior. The priority_mask_ object attribute is thread- specific and specifies the priority levels logged by the thread. The process_priority_mask_ class attribute is not thread-specific and specifies the priority levels that will be logged by all threads in the process. By default, all levels are disabled for priority_mask_ and all levels are enabled for process_priority_mask_ (i.e. the process-wide mask controls the settings, and each instance can expand on it if desired). Both priority masks can be modified using the priority_mask() method of this class.

Member Typedef Documentation

typedef ACE_Atomic_Op<ACE_SYNCH_MUTEX, unsigned long> ACE_Log_Msg::Atomic_ULong
private

This pointer is 0 if we are not reference counting (the user has not passed "true" for the delete_ostream argument to msg_ostream). If we are reference counting, this points to a shared count that will be deleted when it reaches zero. Since we want optional but shared ownership neither std::auto_ptr nor ACE_Strong_Bound_Ptr have the right semantics. *Bound_Ptr also doesn't take advantage of Atomic_Op.

Member Enumeration Documentation

anonymous enum
Enumerator
STDERR 

Write messages to stderr.

LOGGER 

Write messages to the local client logger daemon.

OSTREAM 

Write messages to the ostream * stored in thread-specific storage.

MSG_CALLBACK 

Write messages to the callback object.

VERBOSE 

Display messages in a verbose manner.

VERBOSE_LITE 

Display messages in a less verbose manner (i.e., only print information that can change between calls).

SILENT 

Do not print messages at all (just leave in thread-specific storage for later inspection).

SYSLOG 

Write messages to the system's event log.

CUSTOM 

Write messages to the user provided backend.

Enumerator
PROCESS 
THREAD 

Constructor & Destructor Documentation

ACE_Log_Msg::ACE_Log_Msg ( void  )

Initialize logger.

ACE_Log_Msg::~ACE_Log_Msg ( void  )

cleanup logger.

ACE_Log_Msg::ACE_Log_Msg ( const ACE_Log_Msg )
private

Member Function Documentation

int ACE_Log_Msg::acquire ( void  )

Acquire the internal lock.

void ACE_Log_Msg::cleanup_ostream ( )
private
void ACE_Log_Msg::close ( void  )
staticprivate

For cleanup, at program termination.

void ACE_Log_Msg::clr_flags ( u_long  f)

Disable the bits in the logger's options flags.

void ACE_Log_Msg::conditional_set ( const char *  file,
int  line,
int  op_status,
int  errnum 
)

These values are only actually set if the requested priority is enabled.

int ACE_Log_Msg::dec ( void  )
inline

Nesting depth decrement.

void ACE_Log_Msg::disable_debug_messages ( ACE_Log_Priority  priority = LM_DEBUG)
static

Clears the flag from the default priority mask used to initialize ACE_Log_Msg instances.

void ACE_Log_Msg::dump ( void  ) const

Dump the state of an object.

void ACE_Log_Msg::enable_debug_messages ( ACE_Log_Priority  priority = LM_DEBUG)
static

Sets the flag in the default priority mask used to initialize ACE_Log_Msg instances.

void ACE_Log_Msg::errnum ( int  e)
inline

Set the value of the errnum (by convention this corresponds to errno).

int ACE_Log_Msg::errnum ( void  ) const
inline

Get the value of the errnum (by convention this corresponds to errno).

int ACE_Log_Msg::exists ( void  )
static

Returns non-null if an ACE_Log_Msg exists for the calling thread.

void ACE_Log_Msg::file ( const char *  s)
inline

Set the file name where an error occurred.

const char * ACE_Log_Msg::file ( void  )
inline

Get the file name where an error occurred.

u_long ACE_Log_Msg::flags ( void  )

Return the bits in the logger's options flags.

pid_t ACE_Log_Msg::getpid ( void  ) const
inline

Optimize reading of the pid (avoids a system call if the value is cached...).

int ACE_Log_Msg::inc ( void  )
inline

Nesting depth increment.

void ACE_Log_Msg::inherit_hook ( ACE_OS_Thread_Descriptor thr_desc,
ACE_OS_Log_Msg_Attributes attributes 
)
static

Inherit hook, the attributes field is a ACE_OS_Log_Msg_Attributes object, invoke the inherit_log_msg() method on it, then destroy it and set the attribute argument to 0.

void ACE_Log_Msg::init_hook ( ACE_OS_Log_Msg_Attributes attributes)
static

Init hook, create a Log_Msg_Attribute object, initialize its attributes from the TSS Log_Msg and save the object in the attributes argument

ACE_Log_Msg * ACE_Log_Msg::instance ( void  )
static

Returns a pointer to the Singleton.

int ACE_Log_Msg::last_error_adapter ( void  )
static

Returns last error.

void ACE_Log_Msg::linenum ( int  l)
inline

Set the line number where an error occurred.

int ACE_Log_Msg::linenum ( void  ) const
inline

Get the line number where an error occurred.

const ACE_TCHAR * ACE_Log_Msg::local_host ( void  ) const
inline

Get the name of the local host.

void ACE_Log_Msg::local_host ( const ACE_TCHAR s)

Set the name of the local host.

ssize_t ACE_Log_Msg::log ( ACE_Log_Priority  log_priority,
const ACE_TCHAR format_str,
  ... 
)

Format a message to the thread-safe ACE logging mechanism. Valid options (prefixed by '', as in printf format strings) include:

  • 'A': print an ACE_timer_t value (which could be either double or ACE_UINT32.)
  • 'a': abort the program at this point abruptly.
  • 'b': print a ssize_t value
  • 'B': print a size_t value
  • 'c': print a character
  • 'C': print a char* character string (also see s and W)
  • 'i', 'd': print a decimal number
  • 'I': indent according to nesting depth (obtained from ACE_Trace::get_nesting_indent()).
  • 'e', 'E', 'f', 'F', 'g', 'G': print a double
  • 'l': print line number where an error occurred.
  • 'M': print the name of the priority of the message.
  • 'm': return the message corresponding to errno value, e.g., as done by strerror()
  • 'N': print file name where the error occurred.
  • 'n': print the name of the program (or "<unknown>" if not set)
  • 'o': print as an octal number
  • 'P': print out the current process id
  • 'p': print out the appropriate errno message from sys_errlist, e.g., as done by perror()
  • 'Q': print out the uint64 number
  • 'q': print out the int64 number
  • '@': print a void* pointer (in hexadecimal)
  • 'r': call the function pointed to by the corresponding argument
  • 'R': print return status
  • 'S': print out the appropriate signal message corresponding to var-argument, e.g., as done by strsignal()
  • 's': prints a ACE_TCHAR* character string (also see C and W)
  • 'T': print timestamp in hour:minute:sec:usec format (plain option, i.e. without any flags, prints system supplied timestamp; with '#' flag added expects ACE_Time_Value* in argument list)
  • 'D': print timestamp as Weekday Month day year hour:minute:sec.usec (plain option, i.e. without any flags, prints system supplied timestamp; with '#' flag added expects ACE_Time_Value* in argument list)
  • 't': print thread id (1 if single-threaded)
  • 'u': print as unsigned int
  • 'w': prints a wide character
  • 'W': prints a wchar_t* character string (also see C and s)
  • 'x': print as a hex number
  • 'X': print as a hex number
  • 'z': print an ACE_OS::WChar character
  • 'Z': print an ACE_OS::WChar character string
  • ':': print a time_t value as an integral number
  • '': print out a single percent sign, ''
  • '?': print out stack trace (see Stack_Trace.h header comments)

Valid Options (prefixed by '', as in printf format strings) include: 'A': print an ACE_timer_t value 'a': exit the program at this point (var-argument is the exit status!) 'b': print a ssize_t value 'B': print a size_t value 'c': print a character 'C': print a character string 'i', 'd': print a decimal number 'I', indent according to nesting depth 'e', 'E', 'f', 'F', 'g', 'G': print a double 'l', print line number where an error occurred. 'M': print the name of the priority of the message. 'm': Return the message corresponding to errno value, e.g., as done by <strerror> 'N': print file name where the error occurred. 'n': print the name of the program (or "<unknown>" if not set) 'o': print as an octal number 'P': format the current process id 'p': format the appropriate errno message from sys_errlist, e.g., as done by <perror> 'Q': print out the uint64 number 'q': print out the int64 number '@': print a void* pointer (in hexadecimal) 'r': call the function pointed to by the corresponding argument 'R': print return status 'S': print out the appropriate signal message corresponding to var-argument, e.g., as done by strsignal() 's': format a character string 'T': print timestamp in hour:minute:sec:usec format. 'D': print timestamp in month/day/year hour:minute:sec:usec format. 't': print thread id (1 if single-threaded) 'u': print as unsigned int 'x': print as a hex number 'X': print as a hex number 'w': print a wide character 'W': print out a wide character string. 'z': print an ACE_OS::WChar character 'Z': print an ACE_OS::WChar character string ':': print a time_t value as an integral number '': format a single percent sign, ''

ssize_t ACE_Log_Msg::log ( ACE_Log_Priority  log_priority,
const ACE_ANTI_TCHAR format_str,
  ... 
)

Since this is the ANTI_TCHAR version, we need to convert the format string over.

ssize_t ACE_Log_Msg::log ( const ACE_TCHAR format,
ACE_Log_Priority  priority,
va_list  argp,
ACE_Log_Category_TSS category = 0 
)

An alternative logging mechanism that makes it possible to integrate variable argument lists from other logging mechanisms into the ACE mechanism.

ssize_t ACE_Log_Msg::log ( ACE_Log_Record log_record,
int  suppress_stderr = 0 
)

Log a custom built log record to the currently enabled logging sinks.

int ACE_Log_Msg::log_hexdump ( ACE_Log_Priority  log_priority,
const char *  buffer,
size_t  size,
const ACE_TCHAR text = 0,
ACE_Log_Category_TSS category = 0 
)

Method to log hex dump. This is useful for debugging. Calls log() to do the actual print, but formats first to make the chars printable.

int ACE_Log_Msg::log_priority_enabled ( ACE_Log_Priority  log_priority)
inline

Return true if the requested priority is enabled.

int ACE_Log_Msg::log_priority_enabled ( ACE_Log_Priority  log_priority,
const char *  ,
  ... 
)

Return true if the requested priority is enabled.

void ACE_Log_Msg::msg ( const ACE_TCHAR m)
inline

Set the message that describes what type of error occurred.

const ACE_TCHAR * ACE_Log_Msg::msg ( void  )
inline

Get the message that describes what type of error occurred.

ACE_Log_Msg_Backend * ACE_Log_Msg::msg_backend ( ACE_Log_Msg_Backend b)
static

Set a new backend object and return the existing backend to allow "chaining". Note that as opposed to ACE_Log_Msg_Callback, ACE_Log_Msg_Backend is a per-process entity.

Note
Be aware that because of the current architecture there is no guarantee that open (), reset () and close () will be called on a backend object.
ACE_Log_Msg_Backend * ACE_Log_Msg::msg_backend ( void  )
static
ACE_Log_Msg_Callback * ACE_Log_Msg::msg_callback ( ACE_Log_Msg_Callback c)
inline

Set a new callback object and return the existing callback to allow "chaining". Note that ACE_Log_Msg_Callback objects are not inherited when spawning a new thread, so you'll need to reset them in each thread.

ACE_Log_Msg_Callback * ACE_Log_Msg::msg_callback ( void  ) const
inline
void ACE_Log_Msg::msg_ostream ( ACE_OSTREAM_TYPE *  m)
inline

Update the ostream without overwriting the delete_ostream_ flag.

void ACE_Log_Msg::msg_ostream ( ACE_OSTREAM_TYPE *  m,
bool  delete_ostream 
)

delete_stream == true, forces Log_Msg.h to delete the stream in its own ~dtor (assumes control of the stream) use only with proper ostream (eg: fstream), not (cout, cerr)

ACE_OSTREAM_TYPE * ACE_Log_Msg::msg_ostream ( void  ) const
inline

Get the ostream that is used to print error messages.

void ACE_Log_Msg::op_status ( int  status)
inline

Set the result of the operation status (by convention, -1 means error).

int ACE_Log_Msg::op_status ( void  ) const
inline

Get the result of the operation status (by convention, -1 means error).

int ACE_Log_Msg::open ( const ACE_TCHAR prog_name,
u_long  options_flags = ACE_Log_Msg::STDERR,
const ACE_TCHAR logger_key = 0 
)

Initialize the ACE logging facility.

Initialize the ACE logging facility. Supplies the program name that is available to each logging message call. Default arguments set up logging to STDERR only.

Parameters
prog_nameThe name of the calling program.
options_flagsA bitwise-or of options flags used to set the initial behavior and logging sink(s). (see the enum above for the valid values).
logger_keyThe name of ACE_FIFO rendezvous point where the local client logger daemon is listening for logging messages if the LOGGER bit is set in the flags argument. If the SYSLOG bit is set in flags, logger_key is the source/program name specified in the syslog facility (UNIX/Linux) or the Windows event log (Windows). In the SYSLOG case, if logger_key is 0, prog_name is used.
ACE_Log_Msg& ACE_Log_Msg::operator= ( const ACE_Log_Msg )
private
u_long ACE_Log_Msg::priority_mask ( MASK_TYPE  mask_type = THREAD)
inline

Get the current ACE_Log_Priority mask.

u_long ACE_Log_Msg::priority_mask ( u_long  n_mask,
MASK_TYPE  mask_type = THREAD 
)

Set the ACE_Log_Priority mask, returns original mask.

const ACE_TCHAR * ACE_Log_Msg::program_name ( void  )
static

Returns the current program name used for logging.

int ACE_Log_Msg::release ( void  )

Release the internal lock.

void ACE_Log_Msg::restart ( bool  r)
inline

Set the field that indicates whether interrupted calls should be restarted.

bool ACE_Log_Msg::restart ( void  ) const
inline

Get the field that indicates whether interrupted calls should be restarted.

void ACE_Log_Msg::set ( const char *  file,
int  line,
int  op_status = -1,
int  errnum = 0,
bool  restart = true,
ACE_OSTREAM_TYPE *  os = 0,
ACE_Log_Msg_Callback c = 0 
)

Set the line number, file name, operational status, error number, restart flag, ostream, and the callback object. This combines all the other set methods into a single method.

void ACE_Log_Msg::set_flags ( u_long  f)

Enable the bits in the logger's options flags.

void ACE_Log_Msg::start_tracing ( void  )
inline

Start tracing status on a per-thread basis...

Enable the tracing facility on a per-thread basis.

void ACE_Log_Msg::stop_tracing ( void  )
inline

Stop tracing status on a per-thread basis...

Disable the tracing facility on a per-thread basis.

void ACE_Log_Msg::sync ( const ACE_TCHAR program_name)

Call after doing a fork() to resynchronize the process id and program_name_ variables.

void ACE_Log_Msg::sync_hook ( const ACE_TCHAR prg_name)
staticprivate

Decouple the OS layer from the ACE_Log_Msg layer.

ACE_Thread_Descriptor * ACE_Log_Msg::thr_desc ( void  ) const
inline

Get the TSS thread descriptor.

void ACE_Log_Msg::thr_desc ( ACE_Thread_Descriptor td)

Set the TSS thread descriptor. This method will call td->acquire_release to block execution until this call return.

ACE_OS_Thread_Descriptor * ACE_Log_Msg::thr_desc_hook ( void  )
staticprivate

Return the TSS singleton thread descriptor.

bool ACE_Log_Msg::trace_active ( void  ) const
inline

Get trace active status.

void ACE_Log_Msg::trace_active ( bool  value)
inline

Set trace active status.

int ACE_Log_Msg::trace_depth ( void  ) const
inline

Get trace depth.

void ACE_Log_Msg::trace_depth ( int  depth)
inline

Set trace depth.

bool ACE_Log_Msg::tracing_enabled ( void  ) const
inline

Query tracing status on a per-thread basis...

Member Data Documentation

ACE_Log_Msg::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

struct { ... } ACE_Log_Msg::conditional_values_
u_long ACE_Log_Msg::default_priority_mask_ = 0
staticprivate

Priority mask to use for each new instance

Default per-thread priority mask By default, no priorities are enabled.

int ACE_Log_Msg::errnum_
private

Type of error that occurred (see <sys/errno.h>).

char ACE_Log_Msg::file_[MAXPATHLEN+1]
private

File where the error occurred.

const char* ACE_Log_Msg::file_
u_long ACE_Log_Msg::flags_ = ACE_Log_Msg::STDERR
staticprivate

Default is to use stderr.

Options flags used to hold the logger flag options, e.g., STDERR, LOGGER, OSTREAM, MSG_CALLBACK, etc.

int ACE_Log_Msg::instance_count_ = 0
staticprivate

Number of existing ACE_Log_Msg instances; when 0, delete program/host names

Instance count for Log_Msg - used to know when dynamically allocated storage (program name and host name) can be safely deleted.

bool ACE_Log_Msg::is_set_
int ACE_Log_Msg::line_
int ACE_Log_Msg::linenum_
private

Line number where the error occurred.

const ACE_TCHAR * ACE_Log_Msg::local_host_ = 0
staticprivate

Name of the local host (used when printing messages).

Name of the local host.

ACE_TCHAR* ACE_Log_Msg::msg_
private

The log message, which resides in thread-specific storage. Note that only the current log message is stored here – it will be overwritten by the subsequent call to log().

ACE_Log_Msg_Callback* ACE_Log_Msg::msg_callback_
private

The callback object.

ptrdiff_t ACE_Log_Msg::msg_off_ = 0
staticprivate

Offset of msg_[].

Current offset of msg_[].

int ACE_Log_Msg::op_status_
ACE_OSTREAM_TYPE* ACE_Log_Msg::ostream_
private

The ostream where logging messages can be written.

Atomic_ULong* ACE_Log_Msg::ostream_refcount_
private
pid_t ACE_Log_Msg::pid_ = -2
staticprivate

Process id of the current process.

u_long ACE_Log_Msg::priority_mask_
private

Keeps track of all the per-thread ACE_Log_Priority values that are currently enabled. Default is for all logging priorities to be disabled.

u_long ACE_Log_Msg::process_priority_mask_
staticprivate
Initial value:

Keeps track of all the per-process ACE_Log_Priority values that are currently enabled. Default is for all logging priorities to be enabled.

Default per-process priority mask By default, all priorities are enabled.

const ACE_TCHAR * ACE_Log_Msg::program_name_ = 0
staticprivate

Records the program name.

bool ACE_Log_Msg::restart_
private

Indicates whether we should restart system calls that are interrupted.

int ACE_Log_Msg::status_
private

Status of operation (-1 means failure, >= 0 means success).

ACE_Thread_Descriptor* ACE_Log_Msg::thr_desc_
private

If we're running in the context of an ACE_Thread_Manager this will point to the thread descriptor adapter which holds the thread descriptor of the thread. This can be used to rapidly access all thread data kept in ACE_Thread_Descriptor.

int ACE_Log_Msg::timestamp_
private

Always timestamp?

bool ACE_Log_Msg::trace_active_
private

Are we already within an ACE_Trace constructor call?

int ACE_Log_Msg::trace_depth_
private

Depth of the nesting for printing traces.

bool ACE_Log_Msg::tracing_enabled_
private

Are we allowing tracing in this thread?


The documentation for this class was generated from the following files: