--- parser3/src/main/pa_globals.C	2001/03/15 09:04:06	1.5
+++ parser3/src/main/pa_globals.C	2012/03/16 09:24:13	1.187
@@ -1,47 +1,50 @@
-/*
-	Parser
-	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
-	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
+/** @file
+	Parser: globals.
 
-	$Id: pa_globals.C,v 1.5 2001/03/15 09:04:06 paf Exp $
+	Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
+	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
+#include "pa_config_includes.h"
+
+#ifdef XML
+#include "libxml/xmlversion.h"
+#include "libxslt/extensions.h"
+#include "libxslt/xsltutils.h"
+extern "C" {
+#include "libexslt/exslt.h"
+};
+#endif
+
 #include "pa_globals.h"
-#include "_string.h"
-#include "_double.h"
-#include "_int.h"
-#include "_table.h"
-#include "_form.h"
-#include "_env.h"
+#include "pa_string.h"
+#include "pa_sapi.h"
+#include "pa_threads.h"
+#include "pa_xml_io.h"
+#include "pa_common.h"
 
-Service_funcs service_funcs;
+#include "pa_cache_managers.h"
 
-String *exception_method_name;
+#include "pcre.h"
 
-String *unnamed_name;
-String *empty_string;
+volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.187 2012/03/16 09:24:13 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
 
-String *auto_method_name;
-String *main_method_name;
+// defines
 
-String *root_class_name;
-String *main_class_name;
-String *env_class_name;
-String *table_class_name;
-String *form_class_name;
+//#define PA_DEBUG_XML_GC_MEMORY
 
-String *limits_name;
-String *post_max_size_name;
+//20051130 trying to remove this, author claims that fixed a lot there // 20040920 for now both workarounds needed. wait for new libxml/xsl versions
+// // there is a problem with testcase, it's unstable. 
+// // see paf@six/bug20040920/cgi-bin/t for it-showed-bug-on-20040920-day
+// #define PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
+// #define PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY
 
-Hash *untaint_lang_name2enum;
+// globals
 
 short hex_value[0x100];
 
 static void setup_hex_value() {
-	int i;
-	for (i=0; (i < 0x100); i++) {
-		hex_value[i] = 0;
-	}
+	memset(hex_value, 0, sizeof(hex_value));
 	hex_value['0'] = 0;	
 	hex_value['1'] = 1;	
 	hex_value['2'] = 2;	
@@ -66,53 +69,349 @@ static void setup_hex_value() {
 	hex_value['f'] = 15;
 }
 
-void globals_init(Pool& pool) {
+THREAD_LOCAL Request* thread_request=NULL;
+
+void pa_register_thread_request(Request& r) {
+	thread_request=&r;
+}
+/// retrives request set by pa_set_request function, useful in contextless places [slow]
+Request& pa_thread_request() {
+	return *thread_request;
+}
+
+#ifdef PA_RELEASE_ASSERTS
+void pa_release_assert(const char* str, const char* file, int line) {
+	SAPI::die("%s at %s:%d", str, file, line); 
+}
+#endif
+
+
+#ifdef XML
+
+class XML_Generic_error_info {
+public:/*internal, actually*/
+	char buf[MAX_STRING*5];
+	size_t used;
+public:
+	XML_Generic_error_info() {
+		buf[used=0]=0;
+	}
+	const char* get() {
+		return used? buf: 0;
+	}
+};
+
+THREAD_LOCAL XML_Generic_error_info* xml_generic_error_info = NULL;
+
+static void xmlParserGenericErrorFunc(void *  /*ctx*/, const char* msg, ...) { 
+	XML_Generic_error_info* p;
+	
+	if(!(p=xml_generic_error_info)) // occupy empty one
+		p=xml_generic_error_info=new(PointerFreeGC) XML_Generic_error_info;
+		
+	va_list args;
+	va_start(args, msg);
+	p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args);
+	va_end(args);
+}
+
+bool xmlHaveGenericErrors() {
+	return xml_generic_error_info!=0;
+}
+
+const char* xmlGenericErrors() {
+	if(XML_Generic_error_info *p=xml_generic_error_info) {
+		xml_generic_error_info=0;
+		return p->get();
+	}
+
+	return 0; // no errors for our thread_id registered
+}
+
+#endif
+
+#ifdef XML
+
+static char *pa_GC_strdup(const char *s) {
+	if(!s)
+		return 0;
+
+	size_t size=strlen(s)+1;
+	char *result=(char *)GC_MALLOC_ATOMIC(size);
+	if(!result)
+		pa_fail_alloc("duplicate XML string",size);
+
+	memcpy(result, s, size);
+#ifdef PA_DEBUG_XML_GC_MEMORY
+	fprintf(stderr, "pa_GC_strdup(%p=%s, length=%d)=0x%p\n", s, s, size, result);
+#endif
+	return result;
+}
+
+#ifdef PA_DEBUG_XML_GC_MEMORY
+void *pa_look_for[]={(void*)0x84ba980,(void*)0x8969460,(void*)0x0,(void*)0x0,
+			(void*)0x0,(void*)0x0,(void*)0x0,(void*)0x0};
+bool pa_looked(void*p) {
+	for(int i=0; i<8; i++)
+		if(pa_look_for[i]==p) {
+			__asm__("int $3");
+			return true;
+		}
+	if((((int)p)&~0xFF)==0x89a7700) {
+		__asm__("int $3");
+		return true;
+	}
+	return false;
+}
+static void* pa_gc_malloc_log(size_t size){
+	void *p=pa_gc_malloc(size);
+        fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p);
+	if(pa_looked(p))
+		fprintf(stderr,"catched debug malloc(%d)=0x%p\n", size, p);
+	return p;
+        
+}
+static void* pa_gc_malloc_atomic_log(size_t size){
+#ifdef PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY
+	void *p=pa_gc_malloc(size);
+        fprintf(stderr, "pa_gc_malloc_atomicFAKE_log(%d)=0x%p\n", size, p);
+#else
+	void *p=pa_gc_malloc_atomic(size);
+        fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p);
+#endif
+	if(pa_looked(p))
+		fprintf(stderr,"catched debug malloc atomic(%d)=0x%p\n", size, p);
+	return p;
+}
+static void* pa_gc_realloc_log(void *ptr, size_t size){
+	void *p=pa_gc_realloc(ptr, size);
+        fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p);
+	if(pa_looked(p))
+		fprintf(stderr,"catched debug realloc(%d)=0x%p\n", size, p);
+	return p;
+}
+static void pa_gc_free_log(void *p){
+#ifdef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
+        fprintf(stderr, "pa_gc_freeIGNORE_log(0x%p)\n", p);
+#else
+        fprintf(stderr, "pa_gc_free_log(0x%p)\n", p);
+#endif
+	if(pa_looked(p))
+		fprintf(stderr,"catched debug free(0x%p)\n", p);
+#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
+        pa_gc_free(p);
+#endif
+}
+#else
+
+inline void *check(void *result, const char *where, size_t size) {
+	if(!result)
+		pa_fail_alloc(where, size);
+
+	return result;
+}
+static void* pa_gc_malloc_nonull(size_t size) { 
+	return check(pa_gc_malloc(size), "allocate XML compsite memory", size);
+}
+static void* pa_gc_malloc_atomic_nonull(size_t size) { 
+#ifdef PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY
+	return check(pa_gc_malloc(size), "allocate XML composite memory (asked atomic)", size);
+#else
+	return check(pa_gc_malloc_atomic(size), "allocate XML atomic memory", size);
+#endif
+}
+static void* pa_gc_realloc_nonull(void* ptr, size_t size) { 
+	return check(pa_gc_realloc(ptr, size), "reallocate XML memory", size);
+}
+
+static void pa_gc_free_maybeignore(
+	void* 
+#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
+		ptr
+#endif
+	) {
+#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
+	pa_gc_free(ptr);
+#endif
+}
+
+#endif
+#endif
+
+void pa_CORD_oom_fn(void) {
+	pa_fail_alloc("expand string", 0);
+}
+
+/**
+	@todo gc: libltdl: substitute lt_dlmalloc & co
+*/
+static void gc_substitute_memory_management_functions() {
+	// in libxml & libxslt
+#ifdef XML
+	// asking to use GC memory
+#if LIBXML_VERSION >= 20507
+#ifdef PA_DEBUG_XML_GC_MEMORY
+	xmlGcMemSetup(
+		/*xmlFreeFunc */pa_gc_free_log,
+		/*xmlMallocFunc */pa_gc_malloc_log,
+		/*xmlMallocFunc */pa_gc_malloc_atomic_log,
+		/*xmlReallocFunc */pa_gc_realloc_log,
+		/*xmlStrdupFunc */pa_GC_strdup);
+#else
+	xmlGcMemSetup(
+		/*xmlFreeFunc */pa_gc_free_maybeignore,
+		/*xmlMallocFunc */pa_gc_malloc_nonull,
+		/*xmlMallocFunc */pa_gc_malloc_atomic_nonull,
+		/*xmlReallocFunc */pa_gc_realloc_nonull,
+		/*xmlStrdupFunc */pa_GC_strdup);
+#endif
+
+#else
+	xmlMemSetup(
+		/*xmlFreeFunc */pa_gc_free_maybeignore,
+		/*xmlMallocFunc */pa_gc_malloc,
+		/*xmlReallocFunc */pa_gc_realloc,
+		/*xmlStrdupFunc */pa_GC_strdup);
+#endif
+
+#endif
+
+	// pcre
+	pcre_malloc=pa_gc_malloc;
+	pcre_free=pa_gc_free;
+
+
+	// cord
+	CORD_oom_fn=pa_CORD_oom_fn;
+}
+
+/**
+	@test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1);
+*/
+void pa_globals_init() {
+	// global variables 
+	cache_managers=new Cache_managers;
+
+
+	// in various libraries
+	gc_substitute_memory_management_functions();
+
 	// hex value
 	setup_hex_value();
 
-	#define NEW_STRING(name, value)  name=new(pool) String(pool); name->APPEND_CONST(value)
-	#define LOCAL_STRING(name, value)  String name(pool); name.APPEND_CONST(value)
+#ifdef XML
+	// initializing xml libs
 
-	// names
-	NEW_STRING(exception_method_name, EXCEPTION_METHOD_NAME);
+	/*
+	* Register the EXSLT extensions and the test module
+	*/
+	exsltRegisterAll();
+	xsltRegisterTestModule();
+	xmlDefaultSAXHandlerInit();
+	/*
+	* disable CDATA from being built in the document tree
+	*/
+	// never added yet  xmlDefaultSAXHandler.cdataBlock = NULL;
+	
+	/*
+	 * Initialization function for the XML parser.
+	 * This is not reentrant. Call once before processing in case of
+	 * use in multithreaded programs.
+	*/
+	xmlInitParser();
+
+	// 1. this is needed for proper parsing of stylesheets
+	// there were a situation where honest entity ruined innocent xpath compilation
+	// doc says "you sould turn it on on stylesheet load" without deepening into details
+	// 2. when dom tree with entites goes under transform text nodes 
+	// got [erroreosly] cut on first entity occurance
+	// --
+	// that is why this is:
+	xmlSubstituteEntitiesDefault(1);
+	
+	// Bit in the loadsubset context field to tell to do ID/REFs lookups 
+	xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
+	// Bit in the loadsubset context field to tell to do complete the elements attributes lists 
+	// with the ones defaulted from the DTDs 
+	xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
+
+	// validate each document after load/create (?)
+	//xmlDoValidityCheckingDefaultValue = 1;
+
+//regretfully this not only replaces entities on parse, but also on generate	xmlSubstituteEntitiesDefault(1);
+	// never switched this on xmlIndentTreeOutput=1;
+
+	xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
+	xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
+//	FILE *f=fopen("y:\\xslt.log", "wt");
+//	xsltSetGenericDebugFunc(f/*stderr*/, 0);
 
-	NEW_STRING(unnamed_name, UNNAMED_NAME);
-	empty_string=new(pool) String(pool); 
+	pa_xml_io_init();
+#endif
+}
 
-	NEW_STRING(auto_method_name, AUTO_METHOD_NAME);
-	NEW_STRING(main_method_name, MAIN_METHOD_NAME);
-
-	NEW_STRING(root_class_name, ROOT_CLASS_NAME);
-	NEW_STRING(main_class_name, MAIN_CLASS_NAME);
-	NEW_STRING(table_class_name, TABLE_CLASS_NAME);
-	NEW_STRING(env_class_name, ENV_CLASS_NAME);	
-	NEW_STRING(form_class_name, FORM_CLASS_NAME);	
-
-	NEW_STRING(limits_name, LIMITS_NAME);
-	NEW_STRING(post_max_size_name, POST_MAX_SIZE_NAME);
-
-	// hashes
-	untaint_lang_name2enum=new(pool) Hash(pool);
-	LOCAL_STRING(as_is, "as-is");  
-	untaint_lang_name2enum->put(as_is, (int)String::Untaint_lang::AS_IS);
-	LOCAL_STRING(table, "table");
-	untaint_lang_name2enum->put(table, (int)String::Untaint_lang::TABLE);
-	LOCAL_STRING(sql, "sql");
-	untaint_lang_name2enum->put(sql, (int)String::Untaint_lang::SQL);
-	LOCAL_STRING(js, "js");
-	untaint_lang_name2enum->put(js, (int)String::Untaint_lang::JS);
-	LOCAL_STRING(html, "html");
-	untaint_lang_name2enum->put(html, (int)String::Untaint_lang::HTML);
-	LOCAL_STRING(html_typo, "html-typo");
-	untaint_lang_name2enum->put(html_typo, (int)String::Untaint_lang::HTML_TYPO);
-
-	// read-only stateless classes
-	initialize_string_class(pool, *(string_class=new(pool) VStateless_class(pool)));  string_class->freeze();
-	initialize_double_class(pool, *(double_class=new(pool) VStateless_class(pool)));  double_class->freeze();
-	initialize_int_class(pool, *(int_class=new(pool) VStateless_class(pool)));  int_class->freeze();
-	initialize_table_class(pool, *(table_class=new(pool) VStateless_class(pool)));  table_class->freeze();
-
-	// read-only stateless base classes
-	initialize_env_base_class(pool, *(env_base_class=new(pool) VStateless_class(pool)));  env_base_class->set_name(*env_class_name);  env_base_class->freeze();
-	initialize_form_base_class(pool, *(form_base_class=new(pool) VStateless_class(pool)));  form_base_class->set_name(*form_class_name);  form_base_class->freeze();
+void pa_globals_done() {
+	delete cache_managers;  cache_managers=0;
 }
+
+#ifdef _MSC_VER
+
+#ifndef PA_DEBUG_DISABLE_GC
+#	define GC_LIB "../../../../win32/gc"
+#	ifdef _DEBUG
+#		pragma comment(lib, GC_LIB "/Debug/gc.lib")
+#	else
+#		pragma comment(lib, GC_LIB "/Release/gc.lib")
+#	endif
+
+#endif
+
+#define GNOME_LIBS "../../../../win32/gnome"
+
+#ifdef WITH_MAILRECEIVE
+#	pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib")
+#endif
+
+#ifdef XML
+#	ifdef _DEBUG
+
+#		ifdef LIBXML_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/debug/lib/libxml2_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/debug/lib/libxml2.lib")
+#		endif
+
+#		ifdef LIBXSLT_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libxslt_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libxslt.lib")
+#		endif
+#		ifdef LIBEXSLT_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libexslt_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libexslt.lib")
+#		endif
+
+#else
+
+#		ifdef LIBXML_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/release/lib/libxml2_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/release/lib/libxml2.lib")
+#		endif
+
+#		ifdef LIBXSLT_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libxslt_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libxslt.lib")
+#		endif
+#		ifdef LIBEXSLT_STATIC
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libexslt_a.lib")
+#		else
+#			pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libexslt.lib")
+#		endif
+
+#	endif
+#endif
+
+#endif