Python/dynload_hpux.c


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/* Support for dynamic loading of extension modules */

#include "dl.h"
#include <errno.h>

#include "Python.h"
#include "importdl.h"

#if defined(__hp9000s300)
#define FUNCNAME_PATTERN "_PyInit_%.200s"
#else
#define FUNCNAME_PATTERN "PyInit_%.200s"
#endif

const struct filedescr _PyImport_DynLoadFiletab[] = {
    {SHLIB_EXT, "rb", C_EXTENSION},
    {"module"SHLIB_EXT, "rb", C_EXTENSION},
    {0, 0}
};

dl_funcptr _PyImport_GetDynLoadFunc(const char *fqname, const char *shortname,
                                    const char *pathname, FILE *fp)
{
    dl_funcptr p;
    shl_t lib;
    int flags;
    char funcname[258];

    flags = BIND_FIRST | BIND_DEFERRED;
    if (Py_VerboseFlag) {
        flags = BIND_FIRST | BIND_IMMEDIATE |
            BIND_NONFATAL | BIND_VERBOSE;
        printf("shl_load %s\n",pathname);
    }
    lib = shl_load(pathname, flags, 0);
    /* XXX Chuck Blake once wrote that 0 should be BIND_NOSTART? */
    if (lib == NULL) {
        char buf[256];
        if (Py_VerboseFlag)
            perror(pathname);
        PyOS_snprintf(buf, sizeof(buf), "Failed to load %.200s",
                      pathname);
        PyErr_SetString(PyExc_ImportError, buf);
        return NULL;
    }
    PyOS_snprintf(funcname, sizeof(funcname), FUNCNAME_PATTERN, shortname);
    if (Py_VerboseFlag)
        printf("shl_findsym %s\n", funcname);
    if (shl_findsym(&lib, funcname, TYPE_UNDEFINED, (void *) &p) == -1) {
        shl_unload(lib);
        p = NULL;
    }
    if (p == NULL && Py_VerboseFlag)
        perror(funcname);

    return p;
}

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/*
 * dirent.h --
 *
 *	Declarations of a library of directory-reading procedures
 *	in the POSIX style ("struct dirent").
 *
 * Copyright (c) 1991 The Regents of the University of California.
 * Copyright (c) 1994 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef _DIRENT
#define _DIRENT

#ifndef _TCL
#include <tcl.h>
#endif

/*
 * Dirent structure, which holds information about a single
 * directory entry.
 */

#define MAXNAMLEN 255
#define DIRBLKSIZ 512

struct dirent {
    long d_ino;			/* Inode number of entry */
    short d_reclen;		/* Length of this record */
    short d_namlen;		/* Length of string in d_name */
    char d_name[MAXNAMLEN + 1];	/* Name must be no longer than this */
};

/*
 * State that keeps track of the reading of a directory (clients
 * should never look inside this structure;  the fields should
 * only be accessed by the library procedures).
 */

typedef struct _dirdesc {
    int dd_fd;
    long dd_loc;
    long dd_size;
    char dd_buf[DIRBLKSIZ];
} DIR;

/*
 * Procedures defined for reading directories:
 */

extern void		closedir _ANSI_ARGS_((DIR *dirp));
extern DIR *		opendir _ANSI_ARGS_((char *name));
extern struct dirent *	readdir _ANSI_ARGS_((DIR *dirp));

#endif /* _DIRENT */