自学教程：C++ xmlGetGlobalState函数代码示例

int *__oldXMLWDcompatibility(void) {    if (IS_MAIN_THREAD)	return (&oldXMLWDcompatibility);    else	return (&xmlGetGlobalState()->oldXMLWDcompatibility);}

xmlFreeFunc *__xmlFree(void){    if (IS_MAIN_THREAD)        return (&xmlFree);    else        return (&xmlGetGlobalState()->xmlFree);}

xmlStrdupFunc *__xmlMemStrdup(void){    if (IS_MAIN_THREAD)        return (&xmlMemStrdup);    else        return (&xmlGetGlobalState()->xmlMemStrdup);}

int *__xmlLineNumbersDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlLineNumbersDefaultValue);    else	return (&xmlGetGlobalState()->xmlLineNumbersDefaultValue);}

xmlSAXHandler *__docbDefaultSAXHandler(void) {    if (IS_MAIN_THREAD)	return (&docbDefaultSAXHandler);    else	return (&xmlGetGlobalState()->docbDefaultSAXHandler);}

xmlSAXHandlerV1 *__xmlDefaultSAXHandler(void) {    if (IS_MAIN_THREAD)	return (&xmlDefaultSAXHandler);    else	return (&xmlGetGlobalState()->xmlDefaultSAXHandler);}

int *__xmlDoValidityCheckingDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlDoValidityCheckingDefaultValue);    else	return (&xmlGetGlobalState()->xmlDoValidityCheckingDefaultValue);}

int *__xmlPedanticParserDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlPedanticParserDefaultValue);    else	return (&xmlGetGlobalState()->xmlPedanticParserDefaultValue);}

int *__xmlSaveNoEmptyTags(void) {    if (IS_MAIN_THREAD)	return (&xmlSaveNoEmptyTags);    else	return (&xmlGetGlobalState()->xmlSaveNoEmptyTags);}

int *__xmlLoadExtDtdDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlLoadExtDtdDefaultValue);    else	return (&xmlGetGlobalState()->xmlLoadExtDtdDefaultValue);}

int *__xmlParserDebugEntities(void) {    if (IS_MAIN_THREAD)	return (&xmlParserDebugEntities);    else	return (&xmlGetGlobalState()->xmlParserDebugEntities);}

int *__xmlKeepBlanksDefaultValue(void) {    if (IS_MAIN_THREAD)        return (&xmlKeepBlanksDefaultValue);    else        return (&xmlGetGlobalState()->xmlKeepBlanksDefaultValue);}

xmlStructuredErrorFunc *__xmlStructuredError(void) {    if (IS_MAIN_THREAD)        return (&xmlStructuredError);    else        return (&xmlGetGlobalState()->xmlStructuredError);}

xmlError *__xmlLastError(void) {    if (IS_MAIN_THREAD)        return (&xmlLastError);    else        return (&xmlGetGlobalState()->xmlLastError);}

xmlBufferAllocationScheme *__xmlBufferAllocScheme(void) {    if (IS_MAIN_THREAD)	return (&xmlBufferAllocScheme);    else	return (&xmlGetGlobalState()->xmlBufferAllocScheme);}

int *__xmlSubstituteEntitiesDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlSubstituteEntitiesDefaultValue);    else	return (&xmlGetGlobalState()->xmlSubstituteEntitiesDefaultValue);}

int *__xmlDefaultBufferSize(void) {    if (IS_MAIN_THREAD)	return (&xmlDefaultBufferSize);    else	return (&xmlGetGlobalState()->xmlDefaultBufferSize);}

xmlDeregisterNodeFunc *__xmlDeregisterNodeDefaultValue(void) {    if (IS_MAIN_THREAD)	return (&xmlDeregisterNodeDefaultValue);    else	return (&xmlGetGlobalState()->xmlDeregisterNodeDefaultValue);}

xmlSAXLocator *__xmlDefaultSAXLocator(void) {    if (IS_MAIN_THREAD)	return (&xmlDefaultSAXLocator);    else	return (&xmlGetGlobalState()->xmlDefaultSAXLocator);}

xmlOutputBufferCreateFilenameFunc *__xmlOutputBufferCreateFilenameValue(void) {    if (IS_MAIN_THREAD)	return (&xmlOutputBufferCreateFilenameValue);    else	return (&xmlGetGlobalState()->xmlOutputBufferCreateFilenameValue);}

int *__xmlIndentTreeOutput(void) {    if (IS_MAIN_THREAD)	return (&xmlIndentTreeOutput);    else	return (&xmlGetGlobalState()->xmlIndentTreeOutput);}

xmlReallocFunc *__xmlRealloc(void){    if (IS_MAIN_THREAD)        return (&xmlRealloc);    else        return (&xmlGetGlobalState()->xmlRealloc);}

/* Problem: *   - xmlSetGlobalState may need to either ``copy'' memory *     from one place to another or ``change a pointer''. * *   - changing a pointer requires: *       an ** where to save the old pointer *       a new * to set instead of the old one *   - copying memory requires  *       a memory area where to save the old state *       a new memory area to copy over the current state *    *   In either cases, the SetGlobalState must be transparent *   to the user  * */int xmlSetGlobalState(xmlGlobalStatePtr new_state, xmlGlobalStatePtr * old_state) {  xmlGlobalStatePtr global;  int retval=1;      /* Get a pointer to the current      * memory area */  global=xmlGetGlobalState();    /* If the user wants to     * save the current state somewhere */  if(old_state) {    *old_state=(xmlGlobalStatePtr)xmlMalloc(sizeof(xmlGlobalState));    if(*old_state)      memcpy(*old_state, global, sizeof(xmlGlobalState));    else      retval=0;  }    /* If the user provides a new_state state      * and the copy was succesfull */  if(new_state && (!old_state || *old_state)) {    memcpy(global, new_state, sizeof(xmlGlobalState));    xmlFree(new_state);  }    /* Return status */  return retval;}

static voiddump_dependencies(void){#ifdef __GNUC__  g_print ("Compiler: GCC " __VERSION__ "/n");#elif defined _MSC_VER  g_print ("Compiler: MSC %d/n", _MSC_VER);#else  g_print ("Compiler: unknown/n");#endif  /* some flags/defines which may be interesting */  g_print ("  with : "#ifdef G_THREADS_ENABLED  "threads "#endif#ifdef HAVE_CAIRO  "cairo "#endif#ifdef HAVE_GNOME  "gnome "#endif#ifdef HAVE_LIBART  "libart "#endif#ifdef HAVE_PANGOCAIRO  "pangocairo "#endif  "/n");  /* print out all those dependies, both compile and runtime if possible    * Note: this is not meant to be complete but does only include libaries    * which may or have cause(d) us trouble in some versions    */  g_print ("Library versions (at compile time)/n");#ifdef HAVE_LIBPNG  g_print ("libpng  : %s (%s)/n", png_get_header_ver(NULL), PNG_LIBPNG_VER_STRING);#endif#ifdef HAVE_FREETYPE  {    FT_Library ft_library;    FT_Int     ft_major_version;    FT_Int     ft_minor_version;    FT_Int     ft_micro_version;    if (FT_Init_FreeType (&ft_library) == 0) {      FT_Library_Version (ft_library,                          &ft_major_version,                          &ft_minor_version,                          &ft_micro_version);      g_print ("freetype: %d.%d.%d/n", ft_major_version, ft_minor_version, ft_micro_version);      FT_Done_FreeType (ft_library);    }    else      g_print ("freetype: ?.?.?/n");  }#endif  {    const gchar* libxml_rt_version = "?";#if 0    /* this is stupid, does not compile on Linux:     * app_procs.c:504: error: expected identifier before '(' token     *     * In fact libxml2 has different ABI for LIBXML_THREAD_ENABLED, this code only compiles without     * threads enabled, but apparently it does only work when theay are.     */    xmlInitParser();    if (xmlGetGlobalState())      libxml_rt_version = xmlGetGlobalState()->xmlParserVersion;#endif    libxml_rt_version = xmlParserVersion;    if (atoi(libxml_rt_version))      g_print ("libxml  : %d.%d.%d (%s)/n",                atoi(libxml_rt_version) / 10000, atoi(libxml_rt_version) / 100 % 100, atoi(libxml_rt_version) % 100,	       LIBXML_DOTTED_VERSION);    else /* may include "extra" */      g_print ("libxml  : %s (%s)/n", libxml_rt_version ? libxml_rt_version : "??", LIBXML_DOTTED_VERSION);  }  g_print ("glib    : %d.%d.%d (%d.%d.%d)/n",            glib_major_version, glib_minor_version, glib_micro_version,           GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);#ifdef PANGO_VERSION_ENCODE  g_print ("pango   : %s (%d.%d.%d)/n", pango_version_string(), PANGO_VERSION_MAJOR, PANGO_VERSION_MINOR, PANGO_VERSION_MICRO);#else  g_print ("pango   : version not available (>= 1.14.x)/n"); /* Pango did not provide such */#endif#if HAVE_CAIRO#  ifdef CAIRO_VERSION_STRING  g_print ("cairo   : %s (%s)/n", cairo_version_string(), CAIRO_VERSION_STRING);#  else  g_print ("cairo   : %s (%d.%d.%d)/n", cairo_version_string(), CAIRO_VERSION_MAJOR, CAIRO_VERSION_MINOR, CAIRO_VERSION_MICRO);#  endif#endif#if 0  {    gchar  linkedname[1024];    gint   len = 0;    /* relying on PREFIX is wrong */    if ((len = readlink (PREFIX "/lib/libpango-1.0.so", linkedname, 1023)) > 0) {//.........这里部分代码省略.........