radare2/libr/io/desc.c

/* radare - LGPL - Copyright 2009-2010 pancake<nopcode.org> */

#include <r_io.h>
// TODO: to be deprecated.. this is slow and boring

R_API void r_io_desc_init(RIO *io) {
	io->desc = r_list_new ();
	io->desc->free = (RListFree)r_io_desc_free;
}

R_API void r_io_desc_fini(RIO *io) {
	r_list_free (io->desc);
}

R_API RIODesc *r_io_desc_new(RIOPlugin *plugin, int fd, const char *name, int flags, int mode, void *data) {
	RIODesc *desc = R_NEW (RIODesc);
	if (desc != NULL) {
		desc->state = R_IO_DESC_TYPE_OPENED;
		desc->name = strdup (name);
		if (desc->name != NULL) {
			desc->plugin = plugin;
			desc->flags = flags;
			if (fd == -1)
				desc->fd = (int) ((size_t) desc) & 0xffffff;
			else desc->fd = fd;
			desc->data = data;
		} else {
			free (desc);
			desc = NULL;
		}
	}
	return desc;
}

R_API void r_io_desc_free(RIODesc *desc) {
	if (desc->plugin && desc->plugin->close)
		desc->plugin->close (desc);
	free (desc->name);
	free (desc);
}

R_API void r_io_desc_add(RIO *io, RIODesc *desc) {
	r_list_append (io->desc, desc);
}

R_API int r_io_desc_del(struct r_io_t *io, int fd) {
	RListIter *iter;
	RIODesc *d;
	r_list_foreach (io->desc, iter, d) {
		if (d->fd == fd) {
			r_list_delete (io->desc, iter);
			return R_TRUE;
		}
	}
	return R_FALSE;
}

R_API RIODesc *r_io_desc_get(RIO *io, int fd) {
	RListIter *iter;
	RIODesc *d;
	r_list_foreach (io->desc, iter, d) {
		if (d->fd == fd)
			return d;
	}
	return NULL;
}

#if 0
// XXX: This must be deprecated in order to promote the cast of dataptr to ut32
R_API int r_io_desc_generate(struct r_io_t *io) {
	int fd;
	do fd = 0xf000 + rand ()%0xfff;
	while (r_io_desc_get(io, fd));
	return fd;
}
#endif