Commit dbfe05af authored by Daniel Veillard's avatar Daniel Veillard

on linux/gcc use weak definitions to avoid linking with pthread library on

* Makefile.am configure.in threads.c: on linux/gcc use weak definitions
  to avoid linking with pthread library on non-threaded environments.
* xpath.c: applied patch from Mark Vakoc w.r.t. a buggy namespace
  list allocation.
Daniel
parent cbdf6515
Wed May 4 11:16:00 CEST 2005 Daniel Veillard <daniel@veillard.com>
* Makefile.am configure.in threads.c: on linux/gcc use weak definitions
to avoid linking with pthread library on non-threaded environments.
* xpath.c: applied patch from Mark Vakoc w.r.t. a buggy namespace
list allocation.
Fri Apr 29 11:27:37 CEST 2005 Kasimier Buchcik <libxml2-cvs@cazic.net>
* parser.c: Fixed a test for duplicate attributes: Non-prefixed
......
......@@ -82,7 +82,7 @@ testC14N_LDADD= $(LDADDS)
testThreads_SOURCES=testThreads@THREADS_W32@.c
testThreads_LDFLAGS =
testThreads_DEPENDENCIES = $(DEPS)
testThreads_LDADD= $(LDADDS)
testThreads_LDADD= @BASE_THREAD_LIBS@ $(LDADDS)
testURI_SOURCES=testURI.c
testURI_LDFLAGS =
......
......@@ -719,6 +719,7 @@ dnl
dnl Thread-related stuff
dnl
THREAD_LIBS=""
BASE_THREAD_LIBS=""
WITH_THREADS=0
THREAD_CFLAGS=""
TEST_THREADS=""
......@@ -745,6 +746,12 @@ else
*beos*) WITH_THREADS="1"
THREAD_CFLAGS="$THREAD_CFLAGS -DHAVE_BEOS_THREADS"
;;
*linux*)
if test "${CC}" = "gcc" -a "${THREAD_LIBS}" = "-lpthread" ; then
THREAD_LIBS=""
BASE_THREAD_LIBS="-lpthread"
fi
;;
esac
if test "$WITH_THREADS" = "1" ; then
THREAD_CFLAGS="$THREAD_CFLAGS -D_REENTRANT"
......@@ -756,6 +763,7 @@ if test "$with_thread_alloc" = "yes" -a "$WITH_THREADS" = "1" ; then
fi
AC_SUBST(THREAD_LIBS)
AC_SUBST(BASE_THREAD_LIBS)
AC_SUBST(WITH_THREADS)
AC_SUBST(THREAD_CFLAGS)
AC_SUBST(TEST_THREADS)
......
......@@ -46,6 +46,46 @@
/* #define DEBUG_THREADS */
#ifdef HAVE_PTHREAD_H
static int libxml_is_threaded = -1;
#ifdef __GNUC__
#ifdef linux
#if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || (__GNUC__ > 3)
extern int pthread_once (pthread_once_t *__once_control,
void (*__init_routine) (void))
__attribute((weak));
extern void *pthread_getspecific (pthread_key_t __key)
__attribute((weak));
extern int pthread_setspecific (pthread_key_t __key,
__const void *__pointer)
__attribute((weak));
extern int pthread_key_create (pthread_key_t *__key,
void (*__destr_function) (void *))
__attribute((weak));
extern int pthread_mutex_init ()
__attribute((weak));
extern int pthread_mutex_destroy ()
__attribute((weak));
extern int pthread_mutex_lock ()
__attribute((weak));
extern int pthread_mutex_unlock ()
__attribute((weak));
extern int pthread_cond_init ()
__attribute((weak));
extern int pthread_equal ()
__attribute((weak));
extern pthread_t pthread_self ()
__attribute((weak));
extern int pthread_key_create ()
__attribute((weak));
extern int pthread_cond_signal ()
__attribute((weak));
#endif
#endif /* linux */
#endif /* __GNUC__ */
#endif /* HAVE_PTHREAD_H */
/*
* TODO: this module still uses malloc/free and not xmlMalloc/xmlFree
* to avoid some crazyness since xmlMalloc/xmlFree may actually
......@@ -140,7 +180,8 @@ xmlNewMutex(void)
if ((tok = malloc(sizeof(xmlMutex))) == NULL)
return (NULL);
#ifdef HAVE_PTHREAD_H
pthread_mutex_init(&tok->lock, NULL);
if (libxml_is_threaded != 0)
pthread_mutex_init(&tok->lock, NULL);
#elif defined HAVE_WIN32_THREADS
tok->mutex = CreateMutex(NULL, FALSE, NULL);
#elif defined HAVE_BEOS_THREADS
......@@ -166,7 +207,8 @@ xmlFreeMutex(xmlMutexPtr tok)
if (tok == NULL) return;
#ifdef HAVE_PTHREAD_H
pthread_mutex_destroy(&tok->lock);
if (libxml_is_threaded != 0)
pthread_mutex_destroy(&tok->lock);
#elif defined HAVE_WIN32_THREADS
CloseHandle(tok->mutex);
#elif defined HAVE_BEOS_THREADS
......@@ -187,7 +229,8 @@ xmlMutexLock(xmlMutexPtr tok)
if (tok == NULL)
return;
#ifdef HAVE_PTHREAD_H
pthread_mutex_lock(&tok->lock);
if (libxml_is_threaded != 0)
pthread_mutex_lock(&tok->lock);
#elif defined HAVE_WIN32_THREADS
WaitForSingleObject(tok->mutex, INFINITE);
#elif defined HAVE_BEOS_THREADS
......@@ -214,7 +257,8 @@ xmlMutexUnlock(xmlMutexPtr tok)
if (tok == NULL)
return;
#ifdef HAVE_PTHREAD_H
pthread_mutex_unlock(&tok->lock);
if (libxml_is_threaded != 0)
pthread_mutex_unlock(&tok->lock);
#elif defined HAVE_WIN32_THREADS
ReleaseMutex(tok->mutex);
#elif defined HAVE_BEOS_THREADS
......@@ -243,10 +287,12 @@ xmlNewRMutex(void)
if ((tok = malloc(sizeof(xmlRMutex))) == NULL)
return (NULL);
#ifdef HAVE_PTHREAD_H
pthread_mutex_init(&tok->lock, NULL);
tok->held = 0;
tok->waiters = 0;
pthread_cond_init(&tok->cv, NULL);
if (libxml_is_threaded != 0) {
pthread_mutex_init(&tok->lock, NULL);
tok->held = 0;
tok->waiters = 0;
pthread_cond_init(&tok->cv, NULL);
}
#elif defined HAVE_WIN32_THREADS
InitializeCriticalSection(&tok->cs);
tok->count = 0;
......@@ -270,8 +316,11 @@ xmlNewRMutex(void)
void
xmlFreeRMutex(xmlRMutexPtr tok ATTRIBUTE_UNUSED)
{
if (tok == NULL)
return;
#ifdef HAVE_PTHREAD_H
pthread_mutex_destroy(&tok->lock);
if (libxml_is_threaded != 0)
pthread_mutex_destroy(&tok->lock);
#elif defined HAVE_WIN32_THREADS
DeleteCriticalSection(&tok->cs);
#elif defined HAVE_BEOS_THREADS
......@@ -292,6 +341,9 @@ xmlRMutexLock(xmlRMutexPtr tok)
if (tok == NULL)
return;
#ifdef HAVE_PTHREAD_H
if (libxml_is_threaded == 0)
return;
pthread_mutex_lock(&tok->lock);
if (tok->held) {
if (pthread_equal(tok->tid, pthread_self())) {
......@@ -334,6 +386,9 @@ xmlRMutexUnlock(xmlRMutexPtr tok ATTRIBUTE_UNUSED)
if (tok == NULL)
return;
#ifdef HAVE_PTHREAD_H
if (libxml_is_threaded == 0)
return;
pthread_mutex_lock(&tok->lock);
tok->held--;
if (tok->held == 0) {
......@@ -470,6 +525,9 @@ xmlGetGlobalState(void)
#ifdef HAVE_PTHREAD_H
xmlGlobalState *globalval;
if (libxml_is_threaded == 0)
return(NULL);
pthread_once(&once_control, xmlOnceInit);
if ((globalval = (xmlGlobalState *)
......@@ -559,6 +617,8 @@ int
xmlGetThreadId(void)
{
#ifdef HAVE_PTHREAD_H
if (libxml_is_threaded == 0)
return(0);
return((int) pthread_self());
#elif defined HAVE_WIN32_THREADS
return GetCurrentThreadId();
......@@ -580,6 +640,10 @@ int
xmlIsMainThread(void)
{
#ifdef HAVE_PTHREAD_H
if (libxml_is_threaded == -1)
xmlInitThreads();
if (libxml_is_threaded == 0)
return(1);
pthread_once(&once_control, xmlOnceInit);
#elif defined HAVE_WIN32_THREADS
xmlOnceInit ();
......@@ -646,6 +710,29 @@ xmlInitThreads(void)
#if defined(HAVE_WIN32_THREADS) && !defined(HAVE_COMPILER_TLS) && (!defined(LIBXML_STATIC) || defined(LIBXML_STATIC_FOR_DLL))
InitializeCriticalSection(&cleanup_helpers_cs);
#endif
#ifdef HAVE_PTHREAD_H
if (libxml_is_threaded == -1) {
if ((pthread_once != NULL) &&
(pthread_getspecific != NULL) &&
(pthread_setspecific != NULL) &&
(pthread_key_create != NULL) &&
(pthread_mutex_init != NULL) &&
(pthread_mutex_destroy != NULL) &&
(pthread_mutex_lock != NULL) &&
(pthread_mutex_unlock != NULL) &&
(pthread_cond_init != NULL) &&
(pthread_equal != NULL) &&
(pthread_self != NULL) &&
(pthread_key_create != NULL) &&
(pthread_cond_signal != NULL)) {
libxml_is_threaded = 1;
/* fprintf(stderr, "Running multithreaded\n"); */
} else {
/* fprintf(stderr, "Running without multithread\n"); */
libxml_is_threaded = 0;
}
}
#endif
}
/**
......
......@@ -11300,7 +11300,7 @@ xmlXPathTryStreamCompile(xmlXPathContextPtr ctxt, const xmlChar *str) {
if (ctxt != NULL) {
dict = ctxt->dict;
if (ctxt->nsNr > 0) {
namespaces = xmlMalloc(2 * (ctxt->nsNr + 1));
namespaces = xmlMalloc(2 * (ctxt->nsNr + 1) * sizeof(xmlChar*));
if (namespaces == NULL) {
xmlXPathErrMemory(ctxt, "allocating namespaces array\n");
return(NULL);
......
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