--- parser3/src/main/pa_globals.C 2003/03/24 13:43:41 1.152.2.19.2.3 +++ parser3/src/main/pa_globals.C 2024/11/04 03:53:25 1.215 @@ -1,252 +1,276 @@ /** @file Parser: globals. - Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexandr Petrosian (http://paf.design.ru) + Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com) + Authors: Konstantin Morshnev , Alexandr Petrosian */ -static const char* IDENT_GLOBALS_C="$Date: 2003/03/24 13:43:41 $"; - #include "pa_config_includes.h" #ifdef XML +#include "libxml/xmlversion.h" #include "libxslt/extensions.h" #include "libxslt/xsltutils.h" extern "C" { #include "libexslt/exslt.h" -}; +} #endif #include "pa_globals.h" -#include "pa_string.h" +#include "pa_socks.h" #include "pa_sapi.h" -#include "pa_threads.h" +#include "pa_xml_io.h" +#include "pa_common.h" +#include "pa_symbols.h" -short hex_value[0x100]; +#include "pa_cache_managers.h" -#ifdef XML -GdomeDOMImplementation *domimpl; -#endif +#include "ltdl.h" +#include "pa_vregex.h" + +volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.215 2024/11/04 03:53:25 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H; + +// defines -static void setup_hex_value() { - memset(hex_value, 0, sizeof(hex_value)); - hex_value['0'] = 0; - hex_value['1'] = 1; - hex_value['2'] = 2; - hex_value['3'] = 3; - hex_value['4'] = 4; - hex_value['5'] = 5; - hex_value['6'] = 6; - hex_value['7'] = 7; - hex_value['8'] = 8; - hex_value['9'] = 9; - hex_value['A'] = 10; - hex_value['B'] = 11; - hex_value['C'] = 12; - hex_value['D'] = 13; - hex_value['E'] = 14; - hex_value['F'] = 15; - hex_value['a'] = 10; - hex_value['b'] = 11; - hex_value['c'] = 12; - hex_value['d'] = 13; - hex_value['e'] = 14; - hex_value['f'] = 15; +//#define PA_DEBUG_XML_GC_MEMORY + +// globals + +short hex_value[0x100] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, + 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +THREAD_LOCAL Request* thread_request=NULL; // every TLS should be referenced elsewhere, or GC will collect it + +void pa_register_thread_request(Request& r) { + thread_request=&r; } -#ifdef XML +/// retrives request set by pa_set_request function, useful in contextless places [slow] +Request& pa_thread_request() { + if(!thread_request) + throw Exception(0, 0, "request is not initialized"); + return *thread_request; +} -const int MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS=10; + +#ifdef XML class XML_Generic_error_info { -public: - pa_thread_t thread_id; - char buf[MAX_STRING]; +public:/*internal, actually*/ + char buf[MAX_STRING*5]; size_t used; public: XML_Generic_error_info() { - reset(); - } - void reset() { - thread_id=0; buf[used=0]=0; } - const char* get_and_reset() { - const char* result=(PointerFreeGC)new char[used+1]; - memcpy(result, buf, used+1); - reset(); - return result; + const char* get() { + return used? buf: 0; } -} xml_generic_error_infos[MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS]; - -XML_Generic_error_info *xml_generic_error_info(pa_thread_t thread_id) { - for(int i=0; ithread_id==thread_id) - return p; - } - return 0; -} +}; -static void -xmlParserGenericErrorFunc(void *ctx, const char* msg, ...) { - pa_thread_t thread_id=pa_get_thread_id(); - - // infinitely looking for free slot to fill it - while(true) { - SYNCHRONIZED; // find+fill blocked - - // first try to get existing for this thread_id - XML_Generic_error_info *p=xml_generic_error_info(thread_id); - if(!p) { // occupy empty one - p=xml_generic_error_info(0); - if(!p) // wait for empty for it to appear - continue; - } +THREAD_LOCAL XML_Generic_error_info* xml_generic_error_info = NULL; - p->thread_id=thread_id; +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); - - break; - } + 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() { - pa_thread_t thread_id=pa_get_thread_id(); + return xml_generic_error_info!=0; +} - SYNCHRONIZED; // find blocked +const char* xmlGenericErrors() { + if(XML_Generic_error_info *p=xml_generic_error_info) { + xml_generic_error_info=0; + return p->get(); + } - return xml_generic_error_info(thread_id)!=0; + return 0; // no errors for our thread_id registered } -const char* xmlGenericErrors() { - pa_thread_t thread_id=pa_get_thread_id(); +#endif // XML - SYNCHRONIZED; // find+free blocked +#ifdef XML - XML_Generic_error_info *p=xml_generic_error_info(thread_id); - if(!p) // no errors for our thread_id registered +static char *pa_GC_strdup(const char *s) { + if(!s) return 0; - return p->get_and_reset(); + 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; } -/** - * xmlFileMatchWithLocalhostEqDocumentRoot: - * filename: the URI for matching - * - * check if the URI matches an HTTP one - * - * Returns 1 if matches, 0 otherwise - */ -static int -xmlFileMatchLocalhost(const char* filename) { - if (!strncmp(filename, "http://localhost", 16)) - return(1); - return(0); +#ifdef PA_DEBUG_XML_GC_MEMORY + +static void* pa_gc_malloc_log(size_t size){ + void *p=GC_MALLOC(size); + fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p); + return p; + } +static void* pa_gc_malloc_atomic_log(size_t size){ + void *p=GC_MALLOC_ATOMIC(size); + fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p); + return p; +} -/** - * xmlFileOpenHttpLocalhost : - * filename: the URI for matching - * - * http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc - * - * input from FILE *, supports compressed input - * if filename is " " then the standard input is used - * - * Returns an I/O context or NULL in case of error - */ -static void * -xmlFileOpenLocalhost (const char* filename) { - FILE *fd; - const char* documentRoot; - char path[1000]; - - path[0]=0; - strcat(path, (documentRoot=getenv("DOCUMENT_ROOT"))?documentRoot:"."); - strcat(path, &filename[16]); +static void* pa_gc_realloc_log(void *ptr, size_t size){ + void *p=GC_REALLOC(ptr, size); + fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p); + return p; +} + +static void pa_gc_free_log(void *p){ + fprintf(stderr, "pa_gc_free_log(0x%p)\n", p); + GC_FREE(p); +} -#ifdef WIN32 - fd = fopen(path, "rb"); #else - fd = fopen(path, "r"); -#endif /* WIN32 */ - return((void *) fd); + +inline void *check(void *result, const char *where, size_t size) { + if(!result) + pa_fail_alloc(where, size); + return result; } -/** - * xmlFileRead: - * @context: the I/O context - * @buffer: where to drop data - * @len: number of bytes to write - * - * Read @len bytes to @buffer from the I/O channel. - * - * Returns the number of bytes written - */ -static int -pa_xmlFileRead (void * context, char * buffer, int len) { - return(fread(&buffer[0], 1, len, (FILE *) context)); +static void* pa_gc_malloc_nonull(size_t size) { + return check(GC_MALLOC(size), "allocate XML compsite memory", size); } -/** - * xmlFileClose: - * @context: the I/O context - * - * Close an I/O channel - */ -static int -pa_xmlFileClose (void * context) { - return ( ( fclose((FILE *) context) == EOF ) ? -1 : 0 ); +static void* pa_gc_malloc_atomic_nonull(size_t size) { + return check(GC_MALLOC_ATOMIC(size), "allocate XML atomic memory", size); +} + +static void* pa_gc_realloc_nonull(void* ptr, size_t size) { + return check(GC_REALLOC(ptr, size), "reallocate XML memory", size); +} + +static void pa_gc_free_maybeignore(void* ptr) { + GC_FREE(ptr); } #endif -void pa_globals_destroy(void *) { - try { -#ifdef XML - GdomeException exc; - gdome_di_unref (domimpl, &exc); +#endif // XML + +#ifdef HAVE_PCRE2 +pcre2_general_context* VRegex::fgen_ctxt; + +static void* pa_pcre_malloc(size_t size, void *ptr){ + return pa_malloc(size); +} + +static void pa_pcre_free(void *ptr, void *tag){ + pa_free(ptr); +} #endif - } catch(const Exception& e) { - SAPI::abort("pa_globals_destroy failed: %s", e.comment()); - } + + +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 +#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 + +#endif + + // pcre +#ifdef HAVE_PCRE2 + VRegex::fgen_ctxt=pcre2_general_context_create(pa_pcre_malloc, pa_pcre_free, NULL); +#else + pcre_malloc=pa_malloc; + pcre_free=pa_free; +#endif -/// @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1); + // cord + CORD_oom_fn=pa_CORD_oom_fn; +} + +/** + @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1); +*/ void pa_globals_init() { - // hex value - setup_hex_value(); +#ifndef PA_DEBUG_DISABLE_GC + // Dont collect unless explicitly requested. This is quicker (~30% ), + // but less memory-efficient(~8%), so deciding for speed. + GC_disable(); + // as we log allocation errors, we don't need default gc warnings (without timestamp and URI) + GC_set_warn_proc(GC_ignore_warn_proc); +#endif + + // init socks + pa_socks_init(); + + // global variables + cache_managers=new Cache_managers; + + // in various libraries + gc_substitute_memory_management_functions(); + +#ifdef SYMBOLS_CACHING + // symbols cache + Symbols::init(); +#endif #ifdef XML // initializing xml libs - /* First I get a DOMImplementation reference */ - domimpl = gdome_di_mkref (); - /* - * 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. - */ + // 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 @@ -262,38 +286,93 @@ void pa_globals_init() { 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; + xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS; // validate each document after load/create (?) - //xmlDoValidityCheckingDefaultValue = 1; + // xmlDoValidityCheckingDefaultValue = 1; -//regretfully this not only replaces entities on parse, but also on generate xmlSubstituteEntitiesDefault(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"); + +// FILE *f=fopen("xslt.log", "wt"); // xsltSetGenericDebugFunc(f/*stderr*/, 0); - // http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc - xmlRegisterInputCallbacks( - xmlFileMatchLocalhost, xmlFileOpenLocalhost, - pa_xmlFileRead, pa_xmlFileClose); + pa_xml_io_init(); #endif } -#if defined(XML) && defined(_MSC_VER) -# define GNOME_LIBS "/parser3project/win32xml/win32/gnome" -# pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib") -# ifdef _DEBUG -# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/dsp/libxml2_so_debug/libxml2.lib") -# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_so_debug/libexslt.lib") -# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_so_debug/libxslt.lib") -# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/Debug/libgdome.lib") -# else -# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/dsp/libxml2_so_release/libxml2.lib") -# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_so_release/libexslt.lib") -# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_so_release/libxslt.lib") -# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/Release/libgdome.lib") -# endif +static bool is_dlinited=false; + +void pa_globals_done() { + delete cache_managers; + cache_managers=0; + + if(is_dlinited) + lt_dlexit(); + + pa_socks_done(); +} + +void pa_dlinit() { + if(!is_dlinited){ + if(lt_dlinit()) + throw Exception(0,0,"preparation for dynamic library loading failed, %s", lt_dlerror()); + is_dlinited=true; + } +} + +#ifdef _MSC_VER + +#define PREFIX "../../../../win32/" + +#ifdef _DEBUG +#define CONFIGURATION "Debug" +#else +#define CONFIGURATION "Release" +#endif + +#ifdef _WIN64 +#define PLATFORM_64 "x64/" +#define PLATFORM_32 "" +#else +#define PLATFORM_64 "" +#define PLATFORM_32 "win32/" #endif + +#pragma comment(lib, PREFIX "pcre/" PLATFORM_64 CONFIGURATION "/pcre.lib") + +#ifndef PA_DEBUG_DISABLE_GC + +#pragma comment(lib, PREFIX "gc/" PLATFORM_64 CONFIGURATION "/gc.lib") + +#endif // PA_DEBUG_DISABLE_GC + + +#ifdef XML + +#define GNOME_LIBS PREFIX "gnome" + +#define LIB_XML PREFIX "gnome/libxml2-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/" +#define LIB_XSLT PREFIX "gnome/libxslt-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/" + +#ifdef XML_STATIC +#pragma comment(lib, LIB_XML "libxml2_a.lib") +#pragma comment(lib, LIB_XSLT "libxslt_a.lib") +#pragma comment(lib, LIB_XSLT "libexslt_a.lib") +#else +#pragma comment(lib, LIB_XML "libxml2.lib") +#pragma comment(lib, LIB_XSLT "libxslt.lib") +#pragma comment(lib, LIB_XSLT "libexslt.lib") +#endif + +#endif // XML + +// defines for VS2015 to link with gc/xml libs compiled in the previous VS versions +#if _MSC_VER >= 1900 +#pragma comment(lib,"legacy_stdio_definitions.lib") +#endif + +#endif // _MSC_VER