/* 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 "_init%.200s"

#else

#define FUNCNAME_PATTERN "init%.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;

}