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cpython/Python/importdl.h

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Some rearrangements for the importdl.c restructuring. This is part of a set of patches by Greg Stein.
1999-12-20 21:22:24 +00:00
#ifndef Py_IMPORTDL_H
#define Py_IMPORTDL_H
#ifdef __cplusplus
extern "C" {
#endif
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
/***********************************************************
Change copyright notice.
2000-06-30 23:50:40 +00:00
Copyright (c) 2000, BeOpen.com.
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
All rights reserved.
New permission notice, includes CNRI.
1996-10-25 14:44:06 +00:00
Change copyright notice.
2000-06-30 23:50:40 +00:00
See the file "Misc/COPYRIGHT" for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
******************************************************************/
/* Definitions for dynamic loading of extension modules */
First part of package support. This doesn't yet support "import a.b.c" or "from a.b.c import x", but it does recognize directories. When importing a directory, it initializes __path__ to a list containing the directory name, and loads the __init__ module if found. The (internal) find_module() and load_module() functions are restructured so that they both also handle built-in and frozen modules and Mac resources (and directories of course). The imp module's find_module() and (new) load_module() also have this functionality. Moreover, imp unconditionally defines constants for all module types, and has two more new functions: find_module_in_package() and find_module_in_directory(). There's also a new API function, PyImport_ImportModuleEx(), which takes all four __import__ arguments (name, globals, locals, fromlist). The last three may be NULL. This is currently the same as PyImport_ImportModule() but in the future it will be able to do relative dotted-path imports. Other changes: - bltinmodule.c: in __import__, call PyImport_ImportModuleEx(). - ceval.c: always pass the fromlist to __import__, even if it is a C function, so PyImport_ImportModuleEx() is useful. - getmtime.c: the function has a second argument, the FILE*, on which it applies fstat(). According to Sjoerd this is much faster. The first (pathname) argument is ignored, but remains for backward compatibility (so the Mac version still works without changes). By cleverly combining the new imp functionality, the full support for dotted names in Python (mini.py, not checked in) is now about 7K, lavishly commented (vs. 14K for ni plus 11K for ihooks, also lavishly commented). Good night!
1997-09-05 07:33:22 +00:00
enum filetype {
SEARCH_ERROR,
PY_SOURCE,
PY_COMPILED,
C_EXTENSION,
PY_RESOURCE, /* Mac only */
PKG_DIRECTORY,
C_BUILTIN,
Added declarations for Mac code resource modules (Jack Jansen).
1998-08-06 13:36:43 +00:00
PY_FROZEN,
PY_CODERESOURCE /* Mac only */
First part of package support. This doesn't yet support "import a.b.c" or "from a.b.c import x", but it does recognize directories. When importing a directory, it initializes __path__ to a list containing the directory name, and loads the __init__ module if found. The (internal) find_module() and load_module() functions are restructured so that they both also handle built-in and frozen modules and Mac resources (and directories of course). The imp module's find_module() and (new) load_module() also have this functionality. Moreover, imp unconditionally defines constants for all module types, and has two more new functions: find_module_in_package() and find_module_in_directory(). There's also a new API function, PyImport_ImportModuleEx(), which takes all four __import__ arguments (name, globals, locals, fromlist). The last three may be NULL. This is currently the same as PyImport_ImportModule() but in the future it will be able to do relative dotted-path imports. Other changes: - bltinmodule.c: in __import__, call PyImport_ImportModuleEx(). - ceval.c: always pass the fromlist to __import__, even if it is a C function, so PyImport_ImportModuleEx() is useful. - getmtime.c: the function has a second argument, the FILE*, on which it applies fstat(). According to Sjoerd this is much faster. The first (pathname) argument is ignored, but remains for backward compatibility (so the Mac version still works without changes). By cleverly combining the new imp functionality, the full support for dotted names in Python (mini.py, not checked in) is now about 7K, lavishly commented (vs. 14K for ni plus 11K for ihooks, also lavishly commented). Good night!
1997-09-05 07:33:22 +00:00
};
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
Some rearrangements for the importdl.c restructuring. This is part of a set of patches by Greg Stein.
1999-12-20 21:22:24 +00:00
struct filedescr {
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
char *suffix;
char *mode;
enum filetype type;
Some rearrangements for the importdl.c restructuring. This is part of a set of patches by Greg Stein.
1999-12-20 21:22:24 +00:00
};
extern struct filedescr * _PyImport_Filetab;
extern const struct filedescr _PyImport_DynLoadFiletab[];
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
Nuke all remaining occurrences of Py_PROTO and Py_FPROTO.
2000-07-09 03:09:57 +00:00
extern PyObject *_PyImport_LoadDynamicModule(char *name, char *pathname,
FILE *);
Lots of changes, most minor (fatal() instead of abort(), use of err_fetch/err_restore and so on). But... NOTE: import.c has been rewritten and all the DL stuff is now in the new file importdl.c.
1995-01-02 19:04:15 +00:00
Removed some variables that are used to exchange data between import.c and importdl.c: the MAXSUFFIXSIZE macro is now defined in importdl.h, and the modules dictionary is now passed using PyImport_GetModuleDict(). Also undefine USE_SHLIB for AIX -- in AIX 4.2 and up, dlfcn.h exists but we don't want to use it.
1997-07-21 14:54:36 +00:00
/* Max length of module suffix searched for -- accommodates "module.slb" */
#define MAXSUFFIXSIZE 12
Some rearrangements for the importdl.c restructuring. This is part of a set of patches by Greg Stein.
1999-12-20 21:22:24 +00:00
#ifdef MS_WINDOWS
For Windows, need to add #include <windows.h>.
1999-12-20 22:55:03 +00:00
#include <windows.h>
Some rearrangements for the importdl.c restructuring. This is part of a set of patches by Greg Stein.
1999-12-20 21:22:24 +00:00
typedef FARPROC dl_funcptr;
#else
#ifdef PYOS_OS2
typedef int (* APIENTRY dl_funcptr)();
#else
typedef void (*dl_funcptr)(void);
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif /* !Py_IMPORTDL_H */