/**
* Emit a log message. This function is the variable argument list equivalent
* to vlc_Log().
*/
void vlc_vaLog (vlc_object_t *obj, int type, const char *module,
const char *format, va_list args)
{
if (obj != NULL && obj->i_flags & OBJECT_FLAGS_QUIET)
return;
/* C locale to get error messages in English in the logs */
locale_t c = newlocale (LC_MESSAGES_MASK, "C", (locale_t)0);
locale_t locale = uselocale (c);
#ifndef __GLIBC__
/* Expand %m to strerror(errno) - only once */
char buf[strlen(format) + 2001], *ptr;
strcpy (buf, format);
ptr = (char*)buf;
format = (const char*) buf;
for( ;; )
{
ptr = strchr( ptr, '%' );
if( ptr == NULL )
break;
if( ptr[1] == 'm' )
{
char errbuf[2001];
size_t errlen;
#ifndef WIN32
strerror_r( errno, errbuf, 1001 );
#else
int sockerr = WSAGetLastError( );
if( sockerr )
{
strncpy( errbuf, net_strerror( sockerr ), 1001 );
WSASetLastError( sockerr );
}
if ((sockerr == 0)
|| (strcmp ("Unknown network stack error", errbuf) == 0))
strncpy( errbuf, strerror( errno ), 1001 );
#endif
errbuf[1000] = 0;
/* Escape '%' from the error string */
for( char *percent = strchr( errbuf, '%' );
percent != NULL;
percent = strchr( percent + 2, '%' ) )
{
memmove( percent + 1, percent, strlen( percent ) + 1 );
}
errlen = strlen( errbuf );
memmove( ptr + errlen, ptr + 2, strlen( ptr + 2 ) + 1 );
memcpy( ptr, errbuf, errlen );
break; /* Only once, so we don't overflow */
}
/* Looks for conversion specifier... */
do
ptr++;
while( *ptr && ( strchr( "diouxXeEfFgGaAcspn%", *ptr ) == NULL ) );
if( *ptr )
ptr++; /* ...and skip it */
}
#endif
/* Fill message information fields */
msg_item_t msg;
msg.i_object_id = (uintptr_t)obj;
msg.psz_object_type = (obj != NULL) ? obj->psz_object_type : "generic";
msg.psz_module = module;
msg.psz_header = NULL;
for (vlc_object_t *o = obj; o != NULL; o = o->p_parent)
if (o->psz_header != NULL)
{
msg.psz_header = o->psz_header;
break;
}
/* Pass message to subscribers */
libvlc_priv_t *priv = libvlc_priv (obj->p_libvlc);
va_list ap;
va_copy (ap, args);
if (priv->b_color)
PrintColorMsg (&priv->i_verbose, type, &msg, format, ap);
else
PrintMsg (&priv->i_verbose, type, &msg, format, ap);
va_end (ap);
vlc_rwlock_rdlock (&msg_lock);
for (msg_subscription_t *sub = msg_head; sub != NULL; sub = sub->next)
{
va_copy (ap, args);
sub->func (sub->opaque, type, &msg, format, ap);
va_end (ap);
}
vlc_rwlock_unlock (&msg_lock);
uselocale (locale);
freelocale (c);
}
/**
* Emit a log message. This function is the variable argument list equivalent
* to vlc_Log().
*/
void vlc_vaLog (vlc_object_t *obj, int type, const char *module,
const char *format, va_list args)
{
if (obj != NULL && obj->i_flags & OBJECT_FLAGS_QUIET)
return;
/* Get basename from the module filename */
char *p = strrchr(module, '/');
if (p != NULL)
module = p;
p = strchr(module, '.');
size_t modlen = (p != NULL) ? (p - module) : 1;
char modulebuf[modlen];
if (p != NULL)
{
memcpy(modulebuf, module, modlen);
modulebuf[modlen] = '\0';
module = modulebuf;
}
/* C locale to get error messages in English in the logs */
locale_t c = newlocale (LC_MESSAGES_MASK, "C", (locale_t)0);
locale_t locale = uselocale (c);
#ifndef __GLIBC__
/* Expand %m to strerror(errno) - only once */
char buf[strlen(format) + 2001], *ptr;
strcpy (buf, format);
ptr = (char*)buf;
format = (const char*) buf;
for( ;; )
{
ptr = strchr( ptr, '%' );
if( ptr == NULL )
break;
if( ptr[1] == 'm' )
{
char errbuf[2001];
size_t errlen;
#ifndef _WIN32
strerror_r( errno, errbuf, 1001 );
#else
int sockerr = WSAGetLastError( );
if( sockerr )
{
strncpy( errbuf, net_strerror( sockerr ), 1001 );
WSASetLastError( sockerr );
}
if ((sockerr == 0)
|| (strcmp ("Unknown network stack error", errbuf) == 0))
strncpy( errbuf, strerror( errno ), 1001 );
#endif
errbuf[1000] = 0;
/* Escape '%' from the error string */
for( char *percent = strchr( errbuf, '%' );
percent != NULL;
percent = strchr( percent + 2, '%' ) )
{
memmove( percent + 1, percent, strlen( percent ) + 1 );
}
errlen = strlen( errbuf );
memmove( ptr + errlen, ptr + 2, strlen( ptr + 2 ) + 1 );
memcpy( ptr, errbuf, errlen );
break; /* Only once, so we don't overflow */
}
/* Looks for conversion specifier... */
do
ptr++;
while( *ptr && ( strchr( "diouxXeEfFgGaAcspn%", *ptr ) == NULL ) );
if( *ptr )
ptr++; /* ...and skip it */
}
#endif
/* Fill message information fields */
vlc_log_t msg;
msg.i_object_id = (uintptr_t)obj;
msg.psz_object_type = (obj != NULL) ? obj->psz_object_type : "generic";
msg.psz_module = module;
msg.psz_header = NULL;
for (vlc_object_t *o = obj; o != NULL; o = o->p_parent)
if (o->psz_header != NULL)
{
msg.psz_header = o->psz_header;
break;
}
/* Pass message to the callback */
libvlc_priv_t *priv = obj ? libvlc_priv (obj->p_libvlc) : NULL;
#ifdef _WIN32
va_list ap;
va_copy (ap, args);
Win32DebugOutputMsg (priv ? &priv->log.verbose : NULL, type, &msg, format, ap);
va_end (ap);
#endif
if (priv) {
vlc_rwlock_rdlock (&priv->log.lock);
priv->log.cb (priv->log.opaque, type, &msg, format, args);
vlc_rwlock_unlock (&priv->log.lock);
}
uselocale (locale);
freelocale (c);
}
/**
* Add a message to a queue
*
* This function provides basic functionnalities to other msg_* functions.
* It adds a message to a queue (after having printed all stored messages if it
* is full). If the message can't be converted to string in memory, it issues
* a warning.
*/
void msg_GenericVa (vlc_object_t *p_this, int i_type,
const char *psz_module,
const char *psz_format, va_list _args)
{
char * psz_str = NULL; /* formatted message string */
va_list args;
assert (p_this);
if( p_this->i_flags & OBJECT_FLAGS_QUIET ||
(p_this->i_flags & OBJECT_FLAGS_NODBG && i_type == VLC_MSG_DBG) )
return;
msg_bank_t *bank = libvlc_bank (p_this->p_libvlc);
locale_t locale = uselocale (bank->locale);
#ifndef __GLIBC__
/* Expand %m to strerror(errno) - only once */
char buf[strlen( psz_format ) + 2001], *ptr;
strcpy( buf, psz_format );
ptr = (char*)buf;
psz_format = (const char*) buf;
for( ;; )
{
ptr = strchr( ptr, '%' );
if( ptr == NULL )
break;
if( ptr[1] == 'm' )
{
char errbuf[2001];
size_t errlen;
#ifndef WIN32
strerror_r( errno, errbuf, 1001 );
#else
int sockerr = WSAGetLastError( );
if( sockerr )
{
strncpy( errbuf, net_strerror( sockerr ), 1001 );
WSASetLastError( sockerr );
}
if ((sockerr == 0)
|| (strcmp ("Unknown network stack error", errbuf) == 0))
strncpy( errbuf, strerror( errno ), 1001 );
#endif
errbuf[1000] = 0;
/* Escape '%' from the error string */
for( char *percent = strchr( errbuf, '%' );
percent != NULL;
percent = strchr( percent + 2, '%' ) )
{
memmove( percent + 1, percent, strlen( percent ) + 1 );
}
errlen = strlen( errbuf );
memmove( ptr + errlen, ptr + 2, strlen( ptr + 2 ) + 1 );
memcpy( ptr, errbuf, errlen );
break; /* Only once, so we don't overflow */
}
/* Looks for conversion specifier... */
do
ptr++;
while( *ptr && ( strchr( "diouxXeEfFgGaAcspn%", *ptr ) == NULL ) );
if( *ptr )
ptr++; /* ...and skip it */
}
#endif
/* Convert message to string */
vlc_va_copy( args, _args );
if( vasprintf( &psz_str, psz_format, args ) == -1 )
psz_str = NULL;
va_end( args );
if( psz_str == NULL )
{
int canc = vlc_savecancel (); /* Do not print half of a message... */
#ifdef __GLIBC__
fprintf( stderr, "main warning: can't store message (%m): " );
#else
char psz_err[1001];
#ifndef WIN32
/* we're not using GLIBC, so we are sure that the error description
* will be stored in the buffer we provide to strerror_r() */
strerror_r( errno, psz_err, 1001 );
#else
strncpy( psz_err, strerror( errno ), 1001 );
#endif
psz_err[1000] = '\0';
fprintf( stderr, "main warning: can't store message (%s): ", psz_err );
#endif
vlc_va_copy( args, _args );
/* We should use utf8_vfprintf - but it calls malloc()... */
vfprintf( stderr, psz_format, args );
va_end( args );
fputs( "\n", stderr );
vlc_restorecancel (canc);
uselocale (locale);
return;
}
uselocale (locale);
/* Fill message information fields */
msg_item_t msg;
msg.i_type = i_type;
msg.i_object_id = (uintptr_t)p_this;
msg.psz_object_type = p_this->psz_object_type;
msg.psz_module = psz_module;
msg.psz_msg = psz_str;
msg.psz_header = NULL;
for (vlc_object_t *o = p_this; o != NULL; o = o->p_parent)
if (o->psz_header != NULL)
{
msg.psz_header = o->psz_header;
break;
}
PrintMsg( p_this, &msg );
vlc_rwlock_rdlock (&bank->lock);
for (int i = 0; i < bank->i_sub; i++)
{
msg_subscription_t *sub = bank->pp_sub[i];
libvlc_priv_t *priv = libvlc_priv( sub->instance );
msg_bank_t *bank = priv->msg_bank;
void *val = vlc_dictionary_value_for_key( &bank->enabled_objects,
msg.psz_module );
if( val == kObjectPrintingDisabled ) continue;
if( val != kObjectPrintingEnabled ) /*if not allowed */
{
val = vlc_dictionary_value_for_key( &bank->enabled_objects,
msg.psz_object_type );
if( val == kObjectPrintingDisabled ) continue;
if( val == kObjectPrintingEnabled ); /* Allowed */
else if( !bank->all_objects_enabled ) continue;
}
switch( msg.i_type )
{
case VLC_MSG_INFO:
case VLC_MSG_ERR:
if( sub->verbosity < 0 ) continue;
break;
case VLC_MSG_WARN:
if( sub->verbosity < 1 ) continue;
break;
case VLC_MSG_DBG:
if( sub->verbosity < 2 ) continue;
break;
}
sub->func (sub->opaque, &msg);
}
vlc_rwlock_unlock (&bank->lock);
free (msg.psz_msg);
}
/**
* Add a message to a queue
*
* This function provides basic functionnalities to other msg_* functions.
* It adds a message to a queue (after having printed all stored messages if it
* is full). If the message can't be converted to string in memory, it issues
* a warning.
*/
static void QueueMsg( vlc_object_t *p_this, int i_type, const char *psz_module,
const char *psz_format, va_list _args )
{
assert (p_this);
libvlc_priv_t *priv = libvlc_priv (p_this->p_libvlc);
int i_header_size; /* Size of the additionnal header */
vlc_object_t *p_obj;
char * psz_str = NULL; /* formatted message string */
char * psz_header = NULL;
va_list args;
if( p_this->i_flags & OBJECT_FLAGS_QUIET ||
(p_this->i_flags & OBJECT_FLAGS_NODBG && i_type == VLC_MSG_DBG) )
return;
#ifndef __GLIBC__
/* Expand %m to strerror(errno) - only once */
char buf[strlen( psz_format ) + 2001], *ptr;
strcpy( buf, psz_format );
ptr = (char*)buf;
psz_format = (const char*) buf;
for( ;; )
{
ptr = strchr( ptr, '%' );
if( ptr == NULL )
break;
if( ptr[1] == 'm' )
{
char errbuf[2001];
size_t errlen;
#ifndef WIN32
strerror_r( errno, errbuf, 1001 );
#else
int sockerr = WSAGetLastError( );
if( sockerr )
{
strncpy( errbuf, net_strerror( sockerr ), 1001 );
WSASetLastError( sockerr );
}
if ((sockerr == 0)
|| (strcmp ("Unknown network stack error", errbuf) == 0))
strncpy( errbuf, strerror( errno ), 1001 );
#endif
errbuf[1000] = 0;
/* Escape '%' from the error string */
for( char *percent = strchr( errbuf, '%' );
percent != NULL;
percent = strchr( percent + 2, '%' ) )
{
memmove( percent + 1, percent, strlen( percent ) + 1 );
}
errlen = strlen( errbuf );
memmove( ptr + errlen, ptr + 2, strlen( ptr + 2 ) + 1 );
memcpy( ptr, errbuf, errlen );
break; /* Only once, so we don't overflow */
}
/* Looks for conversion specifier... */
do
ptr++;
while( *ptr && ( strchr( "diouxXeEfFgGaAcspn%", *ptr ) == NULL ) );
if( *ptr )
ptr++; /* ...and skip it */
}
#endif
/* Convert message to string */
vlc_va_copy( args, _args );
if( vasprintf( &psz_str, psz_format, args ) == -1 )
psz_str = NULL;
va_end( args );
if( psz_str == NULL )
{
int canc = vlc_savecancel (); /* Do not print half of a message... */
#ifdef __GLIBC__
fprintf( stderr, "main warning: can't store message (%m): " );
#else
char psz_err[1001];
#ifndef WIN32
/* we're not using GLIBC, so we are sure that the error description
* will be stored in the buffer we provide to strerror_r() */
strerror_r( errno, psz_err, 1001 );
#else
strncpy( psz_err, strerror( errno ), 1001 );
#endif
psz_err[1000] = '\0';
fprintf( stderr, "main warning: can't store message (%s): ", psz_err );
#endif
vlc_va_copy( args, _args );
/* We should use utf8_vfprintf - but it calls malloc()... */
vfprintf( stderr, psz_format, args );
va_end( args );
fputs( "\n", stderr );
vlc_restorecancel (canc);
return;
}
msg_item_t * p_item = malloc (sizeof (*p_item));
if (p_item == NULL)
return; /* Uho! */
vlc_gc_init (p_item, msg_Free);
p_item->psz_module = p_item->psz_msg = p_item->psz_header = NULL;
i_header_size = 0;
p_obj = p_this;
while( p_obj != NULL )
{
char *psz_old = NULL;
if( p_obj->psz_header )
{
i_header_size += strlen( p_obj->psz_header ) + 4;
if( psz_header )
{
psz_old = strdup( psz_header );
psz_header = (char*)realloc( psz_header, i_header_size );
snprintf( psz_header, i_header_size , "[%s] %s",
p_obj->psz_header, psz_old );
}
else
{
psz_header = (char *)malloc( i_header_size );
snprintf( psz_header, i_header_size, "[%s]",
p_obj->psz_header );
}
}
free( psz_old );
p_obj = p_obj->p_parent;
}
/* Fill message information fields */
p_item->i_type = i_type;
p_item->i_object_id = (uintptr_t)p_this;
p_item->psz_object_type = p_this->psz_object_type;
p_item->psz_module = strdup( psz_module );
p_item->psz_msg = psz_str;
p_item->psz_header = psz_header;
PrintMsg( p_this, p_item );
msg_bank_t *p_queue = &QUEUE;
vlc_mutex_lock( &p_queue->lock );
#define bank p_queue
for (int i = 0; i < bank->i_sub; i++)
{
msg_subscription_t *sub = bank->pp_sub[i];
if ((sub->end + 1 - sub->begin) % VLC_MSG_QSIZE)
{
sub->items[sub->end++] = msg_Hold (p_item);
if (sub->end == VLC_MSG_QSIZE)
sub->end = 0;
}
else
sub->overruns++;
}
vlc_cond_broadcast (&bank->wait);
vlc_mutex_unlock (&bank->lock);
msg_Release (p_item);
}
/**
* Add a message to a queue
*
* This function provides basic functionnalities to other msg_* functions.
* It adds a message to a queue (after having printed all stored messages if it
* is full). If the message can't be converted to string in memory, it issues
* a warning.
*/
static void QueueMsg( vlc_object_t *p_this, int i_type, const char *psz_module,
const char *psz_format, va_list _args )
{
assert (p_this);
libvlc_priv_t *priv = libvlc_priv (p_this->p_libvlc);
int i_header_size; /* Size of the additionnal header */
vlc_object_t *p_obj;
char * psz_str = NULL; /* formatted message string */
char * psz_header = NULL;
va_list args;
msg_item_t * p_item = NULL; /* pointer to message */
msg_item_t item; /* message in case of a full queue */
msg_queue_t *p_queue;
#if !defined(HAVE_VASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
int i_size = strlen(psz_format) + INTF_MAX_MSG_SIZE;
#endif
if( p_this->i_flags & OBJECT_FLAGS_QUIET ||
(p_this->i_flags & OBJECT_FLAGS_NODBG && i_type == VLC_MSG_DBG) )
return;
#ifndef __GLIBC__
/* Expand %m to strerror(errno) - only once */
char buf[strlen( psz_format ) + 2001], *ptr;
strcpy( buf, psz_format );
ptr = (char*)buf;
psz_format = (const char*) buf;
for( ;; )
{
ptr = strchr( ptr, '%' );
if( ptr == NULL )
break;
if( ptr[1] == 'm' )
{
char errbuf[2001];
size_t errlen;
#ifndef WIN32
strerror_r( errno, errbuf, 1001 );
#else
int sockerr = WSAGetLastError( );
if( sockerr )
{
strncpy( errbuf, net_strerror( sockerr ), 1001 );
WSASetLastError( sockerr );
}
if ((sockerr == 0)
|| (strcmp ("Unknown network stack error", errbuf) == 0))
strncpy( errbuf, strerror( errno ), 1001 );
#endif
errbuf[1000] = 0;
/* Escape '%' from the error string */
for( char *percent = strchr( errbuf, '%' );
percent != NULL;
percent = strchr( percent + 2, '%' ) )
{
memmove( percent + 1, percent, strlen( percent ) + 1 );
}
errlen = strlen( errbuf );
memmove( ptr + errlen, ptr + 2, strlen( ptr + 2 ) + 1 );
memcpy( ptr, errbuf, errlen );
break; /* Only once, so we don't overflow */
}
/* Looks for conversion specifier... */
do
ptr++;
while( *ptr && ( strchr( "diouxXeEfFgGaAcspn%", *ptr ) == NULL ) );
if( *ptr )
ptr++; /* ...and skip it */
}
#endif
/* Convert message to string */
#if defined(HAVE_VASPRINTF) && !defined(__APPLE__) && !defined( SYS_BEOS )
vlc_va_copy( args, _args );
if( vasprintf( &psz_str, psz_format, args ) == -1 )
psz_str = NULL;
va_end( args );
#else
psz_str = (char*) malloc( i_size );
#endif
if( psz_str == NULL )
{
#ifdef __GLIBC__
fprintf( stderr, "main warning: can't store message (%m): " );
#else
char psz_err[1001];
#ifndef WIN32
/* we're not using GLIBC, so we are sure that the error description
* will be stored in the buffer we provide to strerror_r() */
strerror_r( errno, psz_err, 1001 );
#else
strncpy( psz_err, strerror( errno ), 1001 );
#endif
psz_err[1000] = '\0';
fprintf( stderr, "main warning: can't store message (%s): ", psz_err );
#endif
vlc_va_copy( args, _args );
/* We should use utf8_vfprintf - but it calls malloc()... */
vfprintf( stderr, psz_format, args );
va_end( args );
fputs( "\n", stderr );
return;
}
i_header_size = 0;
p_obj = p_this;
while( p_obj != NULL )
{
char *psz_old = NULL;
if( p_obj->psz_header )
{
i_header_size += strlen( p_obj->psz_header ) + 4;
if( psz_header )
{
psz_old = strdup( psz_header );
psz_header = (char*)realloc( psz_header, i_header_size );
snprintf( psz_header, i_header_size , "[%s] %s",
p_obj->psz_header, psz_old );
}
else
{
psz_header = (char *)malloc( i_header_size );
snprintf( psz_header, i_header_size, "[%s]",
p_obj->psz_header );
}
}
free( psz_old );
p_obj = p_obj->p_parent;
}
#if !defined(HAVE_VASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
vlc_va_copy( args, _args );
vsnprintf( psz_str, i_size, psz_format, args );
va_end( args );
psz_str[ i_size - 1 ] = 0; /* Just in case */
#endif
LOCK_BANK;
p_queue = &QUEUE;
vlc_mutex_lock( &p_queue->lock );
/* Check there is room in the queue for our message */
if( p_queue->b_overflow )
{
FlushMsg( p_queue );
if( ((p_queue->i_stop - p_queue->i_start + 1) % VLC_MSG_QSIZE) == 0 )
{
/* Still in overflow mode, print from a dummy item */
p_item = &item;
}
else
{
/* Pheeew, at last, there is room in the queue! */
p_queue->b_overflow = false;
}
}
else if( ((p_queue->i_stop - p_queue->i_start + 2) % VLC_MSG_QSIZE) == 0 )
{
FlushMsg( p_queue );
if( ((p_queue->i_stop - p_queue->i_start + 2) % VLC_MSG_QSIZE) == 0 )
{
p_queue->b_overflow = true;
/* Put the overflow message in the queue */
p_item = p_queue->msg + p_queue->i_stop;
p_queue->i_stop = (p_queue->i_stop + 1) % VLC_MSG_QSIZE;
p_item->i_type = VLC_MSG_WARN;
p_item->i_object_id = p_this->i_object_id;
p_item->psz_object_type = p_this->psz_object_type;
p_item->psz_module = strdup( "message" );
p_item->psz_msg = strdup( "message queue overflowed" );
p_item->psz_header = NULL;
PrintMsg( p_this, p_item );
/* We print from a dummy item */
p_item = &item;
}
}
if( !p_queue->b_overflow )
{
/* Put the message in the queue */
p_item = p_queue->msg + p_queue->i_stop;
p_queue->i_stop = (p_queue->i_stop + 1) % VLC_MSG_QSIZE;
}
/* Fill message information fields */
p_item->i_type = i_type;
p_item->i_object_id = p_this->i_object_id;
p_item->psz_object_type = p_this->psz_object_type;
p_item->psz_module = strdup( psz_module );
p_item->psz_msg = psz_str;
p_item->psz_header = psz_header;
PrintMsg( p_this, p_item );
if( p_queue->b_overflow )
{
free( p_item->psz_module );
free( p_item->psz_msg );
free( p_item->psz_header );
}
vlc_mutex_unlock ( &p_queue->lock );
UNLOCK_BANK;
}
