C++ (Cpp) malloc_set_zone_name示例

示例#1

文件： mem1.c 项目： 0xr0ot/sqlcipher

/*
** Initialize this module.
*/
static int sqlite3MemInit(void *NotUsed){
#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)
  int cpuCount;
  size_t len;
  if( _sqliteZone_ ){
    return SQLITE_OK;
  }
  len = sizeof(cpuCount);
  /* One usually wants to use hw.acctivecpu for MT decisions, but not here */
  sysctlbyname("hw.ncpu", &cpuCount, &len, NULL, 0);
  if( cpuCount>1 ){
    /* defer MT decisions to system malloc */
    _sqliteZone_ = malloc_default_zone();
  }else{
    /* only 1 core, use our own zone to contention over global locks, 
    ** e.g. we have our own dedicated locks */
    bool success;
    malloc_zone_t* newzone = malloc_create_zone(4096, 0);
    malloc_set_zone_name(newzone, "Sqlite_Heap");
    do{
      success = OSAtomicCompareAndSwapPtrBarrier(NULL, newzone, 
                                 (void * volatile *)&_sqliteZone_);
    }while(!_sqliteZone_);
    if( !success ){
      /* somebody registered a zone first */
      malloc_destroy_zone(newzone);
    }
  }
#endif
  UNUSED_PARAMETER(NotUsed);
  return SQLITE_OK;
}

示例#2

文件： allocator.c 项目： Kentzo/AOS-libdispatch

static void
_dispatch_malloc_init(void)
{
	_dispatch_ccache_zone = malloc_create_zone(0, 0);
	dispatch_assert(_dispatch_ccache_zone);
	malloc_set_zone_name(_dispatch_ccache_zone, "DispatchContinuations");
}

示例#3

文件： Environ.c 项目： christinaa/libSystem_and_linker

int
init__zone0(int should_set_errno)
{
	if (__zone0) return (0);
    
	__zone0 = malloc_create_zone(0, 0);
	if (!__zone0) {
		if (should_set_errno) {
			errno = ENOMEM;
		}
		return (-1);
	}
	malloc_set_zone_name(__zone0, "environ");
	return (0);
}

示例#4

文件： mem1.c 项目： HongliYu/firefox-ios

/*
** Initialize this module.
*/
static int sqlite3MemInit(void *NotUsed){
#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)
  int cpuCount;
  size_t len;
  if( _sqliteZone_ ){
    return SQLITE_OK;
  }
  len = sizeof(cpuCount);
  /* One usually wants to use hw.acctivecpu for MT decisions, but not here */
  sysctlbyname("hw.ncpu", &cpuCount, &len, NULL, 0);
  if( cpuCount>1 ){
    /* defer MT decisions to system malloc */
    _sqliteZone_ = malloc_default_zone();
  }else{
    /* only 1 core, use our own zone to contention over global locks, 
    ** e.g. we have our own dedicated locks */
    _sqliteZone_ = malloc_create_zone(4096, 0);
    malloc_set_zone_name(_sqliteZone_, "Sqlite_Heap");
  }
#endif /*  defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC) */
  UNUSED_PARAMETER(NotUsed);
  return SQLITE_OK;
}

示例#5

文件： unexmacosx.c 项目： okam/emacs-mac-port

void
unexec_init_emacs_zone (void)
{
  emacs_zone = malloc_create_zone (0, 0);
  malloc_set_zone_name (emacs_zone, "EmacsZone");
}