From 1a8791e0b875df8e9428c2d9969f64e5967ac0b4 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Tue, 4 Aug 1998 22:46:29 +0000 Subject: Changes for BeOS, QNX and long long, by Chris Herborth. --- Include/import.h | 5 + Include/longobject.h | 7 ++ Include/pythread.h | 12 +++ Include/thread.h | 12 +++ Objects/longobject.c | 192 ++++++++++++++++++++++++++++++++++ Python/frozenmain.c | 5 + Python/getargs.c | 22 ++++ Python/import.c | 2 +- Python/importdl.c | 285 +++++++++++++++++++++++++++++++++++++++++++++++++++ Python/modsupport.c | 5 + Python/pyfpe.c | 9 ++ Python/thread.c | 4 + 12 files changed, 559 insertions(+), 1 deletion(-) diff --git a/Include/import.h b/Include/import.h index 0f6e92f..2b59b51 100644 --- a/Include/import.h +++ b/Include/import.h @@ -54,6 +54,11 @@ int PyImport_ImportFrozenModule Py_PROTO((char *)); extern PyObject *_PyImport_FindExtension Py_PROTO((char *, char *)); extern PyObject *_PyImport_FixupExtension Py_PROTO((char *, char *)); +#ifdef __BEOS__ +#include +extern image_id PyImport_BeImageID( char *name ); +#endif + struct _inittab { char *name; void (*initfunc)(); diff --git a/Include/longobject.h b/Include/longobject.h index 88854a6..774bfda 100644 --- a/Include/longobject.h +++ b/Include/longobject.h @@ -50,6 +50,13 @@ extern long PyLong_AsLong Py_PROTO((PyObject *)); extern unsigned long PyLong_AsUnsignedLong Py_PROTO((PyObject *)); extern double PyLong_AsDouble Py_PROTO((PyObject *)); +#ifdef HAVE_LONG_LONG +extern PyObject *PyLong_FromLongLong Py_PROTO((long long )); +extern PyObject *PyLong_FromUnsignedLongLong Py_PROTO((unsigned long long)); +extern long long PyLong_AsLongLong Py_PROTO((PyObject *)); +extern unsigned long long PyLong_AsUnsignedLongLong Py_PROTO((PyObject *)); +#endif + PyObject *PyLong_FromString Py_PROTO((char *, char **, int)); #ifdef __cplusplus diff --git a/Include/pythread.h b/Include/pythread.h index 09415c9..d38c174 100644 --- a/Include/pythread.h +++ b/Include/pythread.h @@ -20,10 +20,17 @@ extern "C" { #endif /* Macros defining new names for all these symbols */ +/* BeOS note: We have exit_thread(), and no legacy code to + * support, so we won't allow exit_thread and _exit_thread + * in here. Actually, I think these #defines should vanish; + * aren't they cheesy in the face of the Great Renaming? [cjh] + */ #define init_thread PyThread_init_thread #define start_new_thread PyThread_start_new_thread +#ifndef __BEOS__ #define exit_thread PyThread_exit_thread #define _exit_thread PyThread__exit_thread +#endif #define get_thread_ident PyThread_get_thread_ident #define allocate_lock PyThread_allocate_lock #define free_lock PyThread_free_lock @@ -43,8 +50,13 @@ extern "C" { void init_thread Py_PROTO((void)); int start_new_thread Py_PROTO((void (*)(void *), void *)); +#ifndef __BEOS__ void exit_thread Py_PROTO((void)); void _exit_thread Py_PROTO((void)); +#else +void PyThread_exit_thread Py_PROTO((void)); +void PyThread__exit_thread Py_PROTO((void)); +#endif long get_thread_ident Py_PROTO((void)); type_lock allocate_lock Py_PROTO((void)); diff --git a/Include/thread.h b/Include/thread.h index 09415c9..d38c174 100644 --- a/Include/thread.h +++ b/Include/thread.h @@ -20,10 +20,17 @@ extern "C" { #endif /* Macros defining new names for all these symbols */ +/* BeOS note: We have exit_thread(), and no legacy code to + * support, so we won't allow exit_thread and _exit_thread + * in here. Actually, I think these #defines should vanish; + * aren't they cheesy in the face of the Great Renaming? [cjh] + */ #define init_thread PyThread_init_thread #define start_new_thread PyThread_start_new_thread +#ifndef __BEOS__ #define exit_thread PyThread_exit_thread #define _exit_thread PyThread__exit_thread +#endif #define get_thread_ident PyThread_get_thread_ident #define allocate_lock PyThread_allocate_lock #define free_lock PyThread_free_lock @@ -43,8 +50,13 @@ extern "C" { void init_thread Py_PROTO((void)); int start_new_thread Py_PROTO((void (*)(void *), void *)); +#ifndef __BEOS__ void exit_thread Py_PROTO((void)); void _exit_thread Py_PROTO((void)); +#else +void PyThread_exit_thread Py_PROTO((void)); +void PyThread__exit_thread Py_PROTO((void)); +#endif long get_thread_ident Py_PROTO((void)); type_lock allocate_lock Py_PROTO((void)); diff --git a/Objects/longobject.c b/Objects/longobject.c index b15a3f0..a6be3d9 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -277,6 +277,198 @@ PyLong_AsDouble(vv) return x * sign; } +#ifdef HAVE_LONG_LONG +/* + * long long support by Chris Herborth (chrish@qnx.com) + * + * For better or worse :-), I tried to follow the coding style already + * here. + */ + +#ifdef HAVE_LIMITS_H +#include +#endif + +/* Hopefully this is portable... */ +#ifndef LONG_MAX +#define LONG_MAX 2147483647L +#endif +#ifndef ULONG_MAX +#define ULONG_MAX 4294967295U +#endif +#ifndef LONGLONG_MAX +#define LONGLONG_MAX 9223372036854775807LL +#endif +#ifndef ULONGLONG_MAX +#define ULONGLONG_MAX 0xffffffffffffffffULL +#endif + +/* Create a new long int object from a C long long int */ + +PyObject * +PyLong_FromLongLong(ival) + long long ival; +{ +#if SIZEOF_LONG_LONG == SIZEOF_LONG + /* In case the compiler is faking it. */ + return PyLong_FromLong( (long)ival ); +#else + if( ival <= (long long)LONG_MAX ) { + return PyLong_FromLong( (long)ival ); + } else if( ival <= (unsigned long long)ULONG_MAX ) { + return PyLong_FromUnsignedLong( (unsigned long)ival ); + } else { + /* Assume a C long long fits in at most 10 'digits'. + * Should be OK if we're assuming long fits in 5. + */ + PyLongObject *v = _PyLong_New(10); + + if (v != NULL) { + unsigned long long t = ival; + int i; + if (ival < 0) { + t = -ival; + v->ob_size = -(v->ob_size); + } + + for (i = 0; i < 10; i++) { + v->ob_digit[i] = (digit) (t & MASK); + t >>= SHIFT; + } + + v = long_normalize(v); + } + + return (PyObject *)v; + } + + /* If we got here, we're confused... */ + PyErr_SetString( PyExc_ArithmeticError, "invalid long integer" ); + return NULL; +#endif +} + +/* Create a new long int object from a C unsigned long long int */ +PyObject * +PyLong_FromUnsignedLongLong(ival) + unsigned long long ival; +{ +#if SIZEOF_LONG_LONG == SIZEOF_LONG + /* In case the compiler is faking it. */ + return PyLong_FromUnsignedLong( (unsigned long)ival ); +#else + if( ival <= (unsigned long long)ULONG_MAX ) { + return PyLong_FromUnsignedLong( (unsigned long)ival ); + } else { + /* Assume a C long fits in at most 10 'digits'. */ + PyLongObject *v = _PyLong_New(10); + + if (v != NULL) { + unsigned long long t = ival; + int i; + for (i = 0; i < 10; i++) { + v->ob_digit[i] = (digit) (t & MASK); + t >>= SHIFT; + } + + v = long_normalize(v); + } + + return (PyObject *)v; + } + + /* If we got here, we're confused... */ + PyErr_SetString( PyExc_ArithmeticError, "invalid unsigned long integer" ); + return NULL; +#endif +} + +/* Get a C long long int from a long int object. + Returns -1 and sets an error condition if overflow occurs. */ + +long long +PyLong_AsLongLong(vv) + PyObject *vv; +{ +#if SIZEOF_LONG_LONG == SIZEOF_LONG + /* In case the compiler is faking it. */ + return (long long)PyLong_AsLong( vv ); +#else + register PyLongObject *v; + long long x, prev; + int i, sign; + + if (vv == NULL || !PyLong_Check(vv)) { + PyErr_BadInternalCall(); + return -1; + } + + v = (PyLongObject *)vv; + i = v->ob_size; + sign = 1; + x = 0; + + if (i < 0) { + sign = -1; + i = -(i); + } + + while (--i >= 0) { + prev = x; + x = (x << SHIFT) + v->ob_digit[i]; + if ((x >> SHIFT) != prev) { + PyErr_SetString(PyExc_OverflowError, + "long int too long to convert"); + return -1; + } + } + + return x * sign; +#endif +} + +unsigned long long +PyLong_AsUnsignedLongLong(vv) + PyObject *vv; +{ +#if SIZEOF_LONG_LONG == 4 + /* In case the compiler is faking it. */ + return (unsigned long long)PyLong_AsUnsignedLong( vv ); +#else + register PyLongObject *v; + unsigned long long x, prev; + int i; + + if (vv == NULL || !PyLong_Check(vv)) { + PyErr_BadInternalCall(); + return (unsigned long long) -1; + } + + v = (PyLongObject *)vv; + i = v->ob_size; + x = 0; + + if (i < 0) { + PyErr_SetString(PyExc_OverflowError, + "can't convert negative value to unsigned long"); + return (unsigned long long) -1; + } + + while (--i >= 0) { + prev = x; + x = (x << SHIFT) + v->ob_digit[i]; + if ((x >> SHIFT) != prev) { + PyErr_SetString(PyExc_OverflowError, + "long int too long to convert"); + return (unsigned long long) -1; + } + } + + return x; +#endif +} +#endif /* HAVE_LONG_LONG */ + /* Multiply by a single digit, ignoring the sign. */ static PyLongObject * diff --git a/Python/frozenmain.c b/Python/frozenmain.c index ab9d60d..cb46d65 100644 --- a/Python/frozenmain.c +++ b/Python/frozenmain.c @@ -42,6 +42,11 @@ extern void PyWinFreeze_ExeTerm(); #include /* For isatty() */ #endif +/* For isatty()'s proto. - [cjh] */ +#ifdef HAVE_UNISTD_H +#include +#endif + /* Main program */ int diff --git a/Python/getargs.c b/Python/getargs.c index e4c2634..34e3a5c 100644 --- a/Python/getargs.c +++ b/Python/getargs.c @@ -499,6 +499,20 @@ convertsimple1(arg, p_format, p_va) break; } +#if HAVE_LONG_LONG + case 'L': /* long long */ + { + long long *p = va_arg( *p_va, long long * ); + long long ival = PyLong_AsLongLong( arg ); + if( ival == (long long)-1 && PyErr_Occurred() ) { + return "long"; + } else { + *p = ival; + } + break; + } +#endif + case 'f': /* float */ { float *p = va_arg(*p_va, float *); @@ -988,6 +1002,14 @@ skipitem(p_format, p_va) break; } +#if HAVE_LONG_LONG + case 'L': /* long long int */ + { + (void) va_arg(*p_va, long long *); + break; + } +#endif + case 'f': /* float */ { (void) va_arg(*p_va, float *); diff --git a/Python/import.c b/Python/import.c index f745a94..b859c2b 100644 --- a/Python/import.c +++ b/Python/import.c @@ -2274,7 +2274,7 @@ static PyMethodDef imp_methods[] = { {NULL, NULL} /* sentinel */ }; -int +static int setint(d, name, value) PyObject *d; char *name; diff --git a/Python/importdl.c b/Python/importdl.c index 93282a3..2947d15 100644 --- a/Python/importdl.c +++ b/Python/importdl.c @@ -61,6 +61,7 @@ PERFORMANCE OF THIS SOFTWARE. __NetBSD__ -- NetBSD shared libraries (assuming dlerror() was introduced between 1.2 and 1.3) __FreeBSD__ -- FreeBSD shared libraries + __BEOS__ -- BeOS shared libraries - defined by the compiler (The other WITH_* symbols are used only once, to set the appropriate symbols.) @@ -164,6 +165,44 @@ static int aix_bindnewmodule(void *, void *); static void aix_loaderror(char *); #endif +#ifdef __BEOS__ +# undef USE_SHLIB /* probably not defined anyway */ +# define DYNAMIC_LINK +# define SHORT_EXT ".so" +# define LONG_EXT "module.so" +typedef void (*dl_funcptr)(void); +# define _DL_FUNCPTR_DEFINED + +# if defined(MAXPATHLEN) && !defined(_SYS_PARAM_H) +# undef MAXPATHLEN +# endif + +# include +# include +# include +# include + +# ifdef WITH_THREAD +# include "thread.h" +static type_lock beos_dyn_lock; +# endif + +static PyObject *beos_dyn_images = NULL; + +static void beos_init_dyn( void ); +static void beos_cleanup_dyn( void ); +static void beos_nuke_dyn( PyObject *item ); +static void beos_add_dyn( char *pathname, image_id id ); + +/* External interface for finding image IDs; useful if you need to + * do your own symbol lookup in dynamically loaded modules. [Donn Cave] + * + * Hmm, could we hack up the Sun dlmodule instead for this sort of thing? + * That might be more generally useful. [chrish] + */ +image_id PyImport_BeImageID( char *name ); +#endif + #ifdef DYNAMIC_LINK #ifdef USE_SHLIB @@ -597,6 +636,96 @@ _PyImport_LoadDynamicModule(name, pathname, fp) perror(funcname); } #endif /* hpux */ +#ifdef __BEOS__ + { + image_id the_id; + status_t retval; + char fullpath[PATH_MAX]; + + if( Py_VerboseFlag ) { + printf( "load_add_on( %s )\n", pathname ); + } + + /* Hmm, this old bug appears to have regenerated itself; if the + * path isn't absolute, load_add_on() will fail. Reported to Be + * April 21, 1998. + */ + if( pathname[0] != '/' ) { + (void)getcwd( fullpath, PATH_MAX ); + (void)strncat( fullpath, "/", PATH_MAX ); + (void)strncat( fullpath, pathname, PATH_MAX ); + + if( Py_VerboseFlag ) { + printf( "load_add_on( %s )\n", fullpath ); + } + } else { + (void)strcpy( fullpath, pathname ); + } + + the_id = load_add_on( fullpath ); + if( the_id < B_NO_ERROR ) { + /* It's too bad load_add_on() doesn't set errno or something... + */ + char buff[256]; /* hate hard-coded string sizes... */ + + if( Py_VerboseFlag ) { + printf( "load_add_on( %s ) failed", fullpath ); + } + + switch( the_id ) { + case B_ERROR: + sprintf( buff, "BeOS: Failed to load %.200s", fullpath ); + break; + default: + sprintf( buff, "Unknown error loading %.200s", fullpath ); + break; + } + + PyErr_SetString( PyExc_ImportError, buff ); + return NULL; + } + + if( Py_VerboseFlag ) { + printf( "get_image_symbol( %s )\n", funcname ); + } + + retval = get_image_symbol( the_id, funcname, B_SYMBOL_TYPE_TEXT, &p ); + if( retval != B_NO_ERROR || p == NULL ) { + /* That's bad, we can't find that symbol in the module... + */ + char buff[256]; /* hate hard-coded string sizes... */ + + if( Py_VerboseFlag ) { + printf( "get_image_symbol( %s ) failed", funcname ); + } + + switch( retval ) { + case B_BAD_IMAGE_ID: + sprintf( buff, "can't load init function for dynamic module: " + "Invalid image ID for %.180s", fullpath ); + break; + case B_BAD_INDEX: + sprintf( buff, "can't load init function for dynamic module: " + "Bad index for %.180s", funcname ); + break; + default: + sprintf( buff, "can't load init function for dynamic module: " + "Unknown error looking up %.180s", funcname ); + break; + } + + retval = unload_add_on( the_id ); + + PyErr_SetString( PyExc_ImportError, buff ); + return NULL; + } + + /* Save the module name and image ID for later so we can clean up + * gracefully. + */ + beos_add_dyn( name, the_id ); + } +#endif /* __BEOS__ */ #ifdef USE_SHLIB got_it: #endif @@ -785,3 +914,159 @@ aix_loaderror(pathname) } #endif /* _AIX */ + +#ifdef __BEOS__ +/* ---------------------------------------------------------------------- + * BeOS dynamic loading support + * + * This uses shared libraries, but BeOS has its own way of doing things + * (much easier than dlfnc.h, from the look of things). We'll use a + * Python Dictionary object to store the images_ids so we can be very + * nice and unload them when we exit. + * + * Note that this is thread-safe. Probably irrelevent, because of losing + * systems... Python probably disables threads while loading modules. + * Note the use of "probably"! Better to be safe than sorry. [chrish] + * + * As of 1.5.1 this should also work properly when you've configured + * Python without thread support; the 1.5 version required it, which wasn't + * very friendly. Note that I haven't tested it without threading... why + * would you want to avoid threads on BeOS? [chrish] + */ + +/* + * Initialize our dictionary, and the dictionary mutex. + */ +static void beos_init_dyn( void ) +{ + /* We're protected from a race condition here by the atomic init_count + * variable. + */ + static int32 init_count = 0; + int32 val; + + val = atomic_add( &init_count, 1 ); + if( beos_dyn_images == NULL && val == 0 ) { + beos_dyn_images = PyDict_New(); +#ifdef WITH_THREAD + beos_dyn_lock = PyThread_allocate_lock(); +#endif + atexit( beos_cleanup_dyn ); + } +} + +/* atexit() handler that'll call unload_add_on() for every item in the + * dictionary. + */ +static void beos_cleanup_dyn( void ) +{ + if( beos_dyn_images ) { + int idx; + int list_size; + PyObject *id_list; + +#ifdef WITH_THREAD + PyThread_acquire_lock( beos_dyn_lock, 1 ); +#endif + + id_list = PyDict_Values( beos_dyn_images ); + + list_size = PyList_Size( id_list ); + for( idx = 0; idx < list_size; idx++ ) { + PyObject *the_item; + + the_item = PyList_GetItem( id_list, idx ); + beos_nuke_dyn( the_item ); + } + + PyDict_Clear( beos_dyn_images ); + +#ifdef WITH_THREAD + PyThread_free_lock( beos_dyn_lock ); +#endif + } +} + +/* Whack an item; the item is an image_id in disguise, so we'll call + * unload_add_on() for it. + */ +static void beos_nuke_dyn( PyObject *item ) +{ + status_t retval; + + if( item ) { + image_id id = (image_id)PyInt_AsLong( item ); + + retval = unload_add_on( id ); + } +} + +/* + * Add an image_id to the dictionary; the module name of the loaded image + * is the key. Note that if the key is already in the dict, we unload + * that image; this should allow reload() to work on dynamically loaded + * modules (super-keen!). + */ +static void beos_add_dyn( char *name, image_id id ) +{ + int retval; + PyObject *py_id; + + if( beos_dyn_images == NULL ) { + beos_init_dyn(); + } + +#ifdef WITH_THREAD + retval = PyThread_acquire_lock( beos_dyn_lock, 1 ); +#endif + + /* If there's already an object with this key in the dictionary, + * we're doing a reload(), so let's nuke it. + */ + py_id = PyDict_GetItemString( beos_dyn_images, name ); + if( py_id ) { + beos_nuke_dyn( py_id ); + retval = PyDict_DelItemString( beos_dyn_images, name ); + } + + py_id = PyInt_FromLong( (long)id ); + if( py_id ) { + retval = PyDict_SetItemString( beos_dyn_images, name, py_id ); + } + +#ifdef WITH_THREAD + PyThread_release_lock( beos_dyn_lock ); +#endif +} + +/* Given a module name, return the image_id (if it's a dynamically loaded + * module). [Donn Cave] + */ +image_id PyImport_BeImageID( char *name ) +{ + int retval; + PyObject *py_id; + long id; + + if( !beos_dyn_images ) { + return B_ERROR; + } + +#ifdef WITH_THREAD + retval = PyThread_acquire_lock( beos_dyn_lock, 1 ); +#endif + + py_id = PyDict_GetItemString( beos_dyn_images, name ); + if( py_id ) { + id = PyInt_AsLong( py_id ); + } else { + id = B_ERROR; + } + +#ifdef WITH_THREAD + PyThread_release_lock( beos_dyn_lock ); +#endif + + return (image_id)id; +} +#endif /* __BEOS__ */ diff --git a/Python/modsupport.c b/Python/modsupport.c index 76fc2d9..f5c61da 100644 --- a/Python/modsupport.c +++ b/Python/modsupport.c @@ -291,6 +291,11 @@ do_mkvalue(p_format, p_va) case 'l': return PyInt_FromLong((long)va_arg(*p_va, long)); +#if HAVE_LONG_LONG + case 'L': + return PyLong_FromLongLong((long long)va_arg(*p_va, long long)); +#endif + case 'f': case 'd': return PyFloat_FromDouble( diff --git a/Python/pyfpe.c b/Python/pyfpe.c index 6048cde..b3d9985 100644 --- a/Python/pyfpe.c +++ b/Python/pyfpe.c @@ -12,4 +12,13 @@ jmp_buf PyFPE_jbuf; int PyFPE_counter = 0; double PyFPE_dummy(void *dummy){ return 1.0; } +#else +#ifdef __MWERKS__ +/* + * Metrowerks fails when compiling an empty file, at least in strict ANSI + * mode. - [cjh] + */ +static double PyFPE_dummy( void * ); +static double PyFPE_dummy( void *dummy ) { return 1.0; } +#endif #endif diff --git a/Python/thread.c b/Python/thread.c index f441752..9da701d 100644 --- a/Python/thread.c +++ b/Python/thread.c @@ -153,6 +153,10 @@ void init_thread _P0() #include "thread_os2.h" #endif +#ifdef BEOS_THREADS +#include "thread_beos.h" +#endif + /* #ifdef FOOBAR_THREADS #include "thread_foobar.h" -- cgit v0.12