mirror of https://github.com/python/cpython
Create a new section of pyport.h to hold all external function declarations
for systems that are missing those declarations from system include files. Start by moving a pointy-haired ones from their previous locations to the new section. (The gethostname() one, for instance, breaks on several systems, because some define it as (char *, size_t) and some as (char *, int).) I purposely decided not to include the summary of used #defines like Tim did in the first section of pyport.h. In my opinion, the number of #defines likedly to be used by this section would make such an overview unwieldy. I would suggest documenting the non-obvious ones, though.
This commit is contained in:
Thomas Wouters
parent
332c59c4ef
commit
1e0c2f4bee
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@ -74,6 +74,68 @@ extern "C" {
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#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE)
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#endif
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/**************************************************************************
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Prototypes that are missing from the standard include files on some systems
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(and possibly only some versions of such systems.)
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Please be conservative with adding new ones, document them and enclose them
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in platform-specific #ifdefs.
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**************************************************************************/
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#ifdef SOLARIS
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/* Unchecked */
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extern int gethostname(char *, int);
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#endif
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#ifdef __BEOS__
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/* Unchecked */
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/* It's in the libs, but not the headers... - [cjh] */
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int shutdown( int, int );
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#endif
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#ifdef HAVE__GETPTY
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/* Unchecked */
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extern char * _getpty(int *, int, mode_t, int);
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#endif
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#if defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY)
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#if !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H)
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/* BSDI does not supply a prototype for the 'openpty' and 'forkpty'
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functions, even though they are included in libutil. */
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#include <termios.h>
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extern int openpty(int *, int *, char *, struct termios *, struct winsize *);
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extern int forkpty(int *, char *, struct termios *, struct winsize *);
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#endif /* !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) */
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#endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */
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/* These are pulled from various places. It isn't obvious on what platforms
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they are necessary, nor what the exact prototype should look like (which
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is likely to vary between platforms!) If you find you need one of these
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declarations, please move them to a platform-specific block and include
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proper prototypes. */
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#if 0
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/* From Modules/resource.c */
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extern int getrusage();
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extern int getpagesize();
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/* From Python/sysmodule.c and Modules/posixmodule.c */
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extern int fclose(FILE *);
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/* From Modules/posixmodule.c */
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extern int fdatasync(int);
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/* XXX These are supposedly for SunOS4.1.3 but "shouldn't hurt elsewhere" */
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extern int rename(const char *, const char *);
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extern int pclose(FILE *);
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extern int lstat(const char *, struct stat *);
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extern int symlink(const char *, const char *);
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extern int fsync(int fd);
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#endif /* 0 */
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#ifdef __cplusplus
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}
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#endif
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@ -128,14 +128,7 @@ corresponding Unix manual entries for more information on calls.";
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#define UNION_WAIT /* This should really be checked for by autoconf */
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#endif
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#ifdef HAVE_UNISTD_H
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/* XXX These are for SunOS4.1.3 but shouldn't hurt elsewhere */
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extern int rename(const char *, const char *);
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extern int pclose(FILE *);
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extern int lstat(const char *, struct stat *);
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extern int symlink(const char *, const char *);
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extern int fsync(int fd);
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#else /* !HAVE_UNISTD_H */
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#ifndef HAVE_UNISTD_H
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#if defined(PYCC_VACPP)
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extern int mkdir(char *);
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#else
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@ -721,8 +714,6 @@ static char posix_fdatasync__doc__[] =
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force write of file with filedescriptor to disk.\n\
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does not force update of metadata.";
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extern int fdatasync(int); /* Prototype just in case */
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static PyObject *
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posix_fdatasync(PyObject *self, PyObject *args)
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{
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@ -1680,12 +1671,6 @@ posix_fork(PyObject *self, PyObject *args)
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#else
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#ifdef HAVE_LIBUTIL_H
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#include <libutil.h>
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#else
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/* BSDI does not supply a prototype for the 'openpty' and 'forkpty'
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functions, even though they are included in libutil. */
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#include <termios.h>
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extern int openpty(int *, int *, char *, struct termios *, struct winsize *);
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extern int forkpty(int *, char *, struct termios *, struct winsize *);
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#endif /* HAVE_LIBUTIL_H */
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#endif /* HAVE_PTY_H */
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#endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */
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@ -1701,8 +1686,6 @@ posix_openpty(PyObject *self, PyObject *args)
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int master_fd, slave_fd;
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#ifndef HAVE_OPENPTY
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char * slave_name;
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/* SGI apparently needs this forward declaration */
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extern char * _getpty(int *, int, mode_t, int);
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#endif
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if (!PyArg_ParseTuple(args, ":openpty"))
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@ -1719,7 +1702,7 @@ posix_openpty(PyObject *self, PyObject *args)
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slave_fd = open(slave_name, O_RDWR);
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if (slave_fd < 0)
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return posix_error();
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#endif /* defined(HAVE_OPENPTY) */
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#endif /* HAVE_OPENPTY */
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return Py_BuildValue("(ii)", master_fd, slave_fd);
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@ -3286,7 +3269,6 @@ Return an open file object connected to a file descriptor.";
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static PyObject *
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posix_fdopen(PyObject *self, PyObject *args)
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{
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extern int fclose(FILE *);
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int fd;
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char *mode = "r";
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int bufsize = -1;
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@ -22,10 +22,6 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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but we can't declare the prototype, to avoid errors
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when the header files declare it different.
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Worse, on some Linuxes, getpagesize() returns a size_t... */
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#ifndef linux
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int getrusage();
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int getpagesize();
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#endif
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#define doubletime(TV) ((double)(TV).tv_sec + (TV).tv_usec * 0.000001)
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@ -110,10 +110,6 @@ Socket methods:
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#include <unistd.h>
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#endif
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#if !defined(MS_WINDOWS) && !defined(PYOS_OS2) && !defined(__BEOS__)
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extern int gethostname(char *, size_t); /* For Solaris, at least */
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#endif
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#if defined(PYCC_VACPP)
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#include <types.h>
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#include <io.h>
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@ -129,11 +125,6 @@ extern int gethostname(char *, size_t); /* For Solaris, at least */
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#include <os2.h>
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#endif
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#if defined(__BEOS__)
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/* It's in the libs, but not the headers... - [cjh] */
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int shutdown( int, int );
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#endif
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#include <sys/types.h>
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#include "mytime.h"
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@ -2407,9 +2398,9 @@ shutdown() -- shut down traffic in one or both directions\n\
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DL_EXPORT(void)
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#if defined(MS_WINDOWS) || defined(PYOS_OS2) || defined(__BEOS__)
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init_socket()
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init_socket(void)
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#else
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initsocket()
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initsocket(void)
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#endif
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{
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PyObject *m, *d;
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@ -385,7 +385,6 @@ settrace() -- set the global debug tracing function\n\
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PyObject *
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_PySys_Init(void)
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{
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extern int fclose(FILE *);
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PyObject *m, *v, *sysdict;
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PyObject *sysin, *sysout, *syserr;
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char *s;
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