WebSVN – HelenOS – Diff – //trunk/uspace/srv/vfs/vfs_ops.c



    free(opts);
}
 
void vfs_open(ipc_callid_t rid, ipc_call_t *request)
{
    async_serialize_start();
   
    if (!vfs_files_init()) {
        ipc_answer_0(rid, ENOMEM);
        async_serialize_end();
        return;
    }
 
    /*
     * The POSIX interface is open(path, oflag, mode).

     * L_DIRECTORY.
     */
    if ((lflag & (L_FILE | L_DIRECTORY)) == 0 ||
        (lflag & (L_FILE | L_DIRECTORY)) == (L_FILE | L_DIRECTORY)) {
        ipc_answer_0(rid, EINVAL);
        async_serialize_end();
        return;
    }
 
    if (oflag & O_CREAT)
        lflag |= L_CREATE;

    ipc_callid_t callid;
 
    if (!ipc_data_write_receive(&callid, &len)) {
        ipc_answer_0(callid, EINVAL);
        ipc_answer_0(rid, EINVAL);
        async_serialize_end();
        return;
    }
    char *path = malloc(len + 1);
    if (!path) {
        ipc_answer_0(callid, ENOMEM);
        ipc_answer_0(rid, ENOMEM);
        async_serialize_end();
        return;
    }
    int rc;
    if ((rc = ipc_data_write_finalize(callid, path, len))) {
        ipc_answer_0(rid, rc);
        free(path);
        async_serialize_end();
        return;
    }
    path[len] = '\0';
   
    /*

            rwlock_write_unlock(&namespace_rwlock);
        else
            rwlock_read_unlock(&namespace_rwlock);
        ipc_answer_0(rid, rc);
        free(path);
        async_serialize_end();
        return;
    }
 
    /* Path is no longer needed. */
    free(path);

                node->dev_handle, node->index, 0);
            if (rc) {
                rwlock_write_unlock(&node->contents_rwlock);
                vfs_node_put(node);
                ipc_answer_0(rid, rc);
                async_serialize_end();
                return;
            }
            node->size = 0;
        }
        rwlock_write_unlock(&node->contents_rwlock);

     */
    int fd = vfs_fd_alloc();
    if (fd < 0) {
        vfs_node_put(node);
        ipc_answer_0(rid, fd);
        async_serialize_end();
        return;
    }
    vfs_file_t *file = vfs_file_get(fd);
    file->node = node;
    if (oflag & O_APPEND)

    vfs_node_addref(node);
    vfs_node_put(node);
 
    /* Success! Return the new file descriptor to the client. */
    ipc_answer_1(rid, EOK, fd);
    async_serialize_end();
}
 
void vfs_close(ipc_callid_t rid, ipc_call_t *request)
{
    int fd = IPC_GET_ARG1(*request);

Rev 4437	Rev 4443
Line 484...	Line 484...
484	free(opts);	484	free(opts);
485	}	485	}
486		486
487	void vfs_open(ipc_callid_t rid, ipc_call_t *request)	487	void vfs_open(ipc_callid_t rid, ipc_call_t *request)
488	{	488	{
-		489	async_serialize_start();
-		490
489	if (!vfs_files_init()) {	491	if (!vfs_files_init()) {
490	ipc_answer_0(rid, ENOMEM);	492	ipc_answer_0(rid, ENOMEM);
-		493	async_serialize_end();
491	return;	494	return;
492	}	495	}
493		496
494	/*	497	/*
495	* The POSIX interface is open(path, oflag, mode).	498	* The POSIX interface is open(path, oflag, mode).
Line 509...	Line 512...
509	* L_DIRECTORY.	512	* L_DIRECTORY.
510	*/	513	*/
511	if ((lflag & (L_FILE \| L_DIRECTORY)) == 0 \|\|	514	if ((lflag & (L_FILE \| L_DIRECTORY)) == 0 \|\|
512	(lflag & (L_FILE \| L_DIRECTORY)) == (L_FILE \| L_DIRECTORY)) {	515	(lflag & (L_FILE \| L_DIRECTORY)) == (L_FILE \| L_DIRECTORY)) {
513	ipc_answer_0(rid, EINVAL);	516	ipc_answer_0(rid, EINVAL);
-		517	async_serialize_end();
514	return;	518	return;
515	}	519	}
516		520
517	if (oflag & O_CREAT)	521	if (oflag & O_CREAT)
518	lflag \|= L_CREATE;	522	lflag \|= L_CREATE;
Line 522...	Line 526...
522	ipc_callid_t callid;	526	ipc_callid_t callid;
523		527
524	if (!ipc_data_write_receive(&callid, &len)) {	528	if (!ipc_data_write_receive(&callid, &len)) {
525	ipc_answer_0(callid, EINVAL);	529	ipc_answer_0(callid, EINVAL);
526	ipc_answer_0(rid, EINVAL);	530	ipc_answer_0(rid, EINVAL);
-		531	async_serialize_end();
527	return;	532	return;
528	}	533	}
529	char *path = malloc(len + 1);	534	char *path = malloc(len + 1);
530	if (!path) {	535	if (!path) {
531	ipc_answer_0(callid, ENOMEM);	536	ipc_answer_0(callid, ENOMEM);
532	ipc_answer_0(rid, ENOMEM);	537	ipc_answer_0(rid, ENOMEM);
-		538	async_serialize_end();
533	return;	539	return;
534	}	540	}
535	int rc;	541	int rc;
536	if ((rc = ipc_data_write_finalize(callid, path, len))) {	542	if ((rc = ipc_data_write_finalize(callid, path, len))) {
537	ipc_answer_0(rid, rc);	543	ipc_answer_0(rid, rc);
538	free(path);	544	free(path);
-		545	async_serialize_end();
539	return;	546	return;
540	}	547	}
541	path[len] = '\0';	548	path[len] = '\0';
542		549
543	/*	550	/*
Line 558...	Line 565...
558	rwlock_write_unlock(&namespace_rwlock);	565	rwlock_write_unlock(&namespace_rwlock);
559	else	566	else
560	rwlock_read_unlock(&namespace_rwlock);	567	rwlock_read_unlock(&namespace_rwlock);
561	ipc_answer_0(rid, rc);	568	ipc_answer_0(rid, rc);
562	free(path);	569	free(path);
-		570	async_serialize_end();
563	return;	571	return;
564	}	572	}
565		573
566	/* Path is no longer needed. */	574	/* Path is no longer needed. */
567	free(path);	575	free(path);
Line 580...	Line 588...
580	node->dev_handle, node->index, 0);	588	node->dev_handle, node->index, 0);
581	if (rc) {	589	if (rc) {
582	rwlock_write_unlock(&node->contents_rwlock);	590	rwlock_write_unlock(&node->contents_rwlock);
583	vfs_node_put(node);	591	vfs_node_put(node);
584	ipc_answer_0(rid, rc);	592	ipc_answer_0(rid, rc);
-		593	async_serialize_end();
585	return;	594	return;
586	}	595	}
587	node->size = 0;	596	node->size = 0;
588	}	597	}
589	rwlock_write_unlock(&node->contents_rwlock);	598	rwlock_write_unlock(&node->contents_rwlock);
Line 595...	Line 604...
595	*/	604	*/
596	int fd = vfs_fd_alloc();	605	int fd = vfs_fd_alloc();
597	if (fd < 0) {	606	if (fd < 0) {
598	vfs_node_put(node);	607	vfs_node_put(node);
599	ipc_answer_0(rid, fd);	608	ipc_answer_0(rid, fd);
-		609	async_serialize_end();
600	return;	610	return;
601	}	611	}
602	vfs_file_t *file = vfs_file_get(fd);	612	vfs_file_t *file = vfs_file_get(fd);
603	file->node = node;	613	file->node = node;
604	if (oflag & O_APPEND)	614	if (oflag & O_APPEND)
Line 614...	Line 624...
614	vfs_node_addref(node);	624	vfs_node_addref(node);
615	vfs_node_put(node);	625	vfs_node_put(node);
616		626
617	/* Success! Return the new file descriptor to the client. */	627	/* Success! Return the new file descriptor to the client. */
618	ipc_answer_1(rid, EOK, fd);	628	ipc_answer_1(rid, EOK, fd);
-		629	async_serialize_end();
619	}	630	}
620		631
621	void vfs_close(ipc_callid_t rid, ipc_call_t *request)	632	void vfs_close(ipc_callid_t rid, ipc_call_t *request)
622	{	633	{
623	int fd = IPC_GET_ARG1(*request);	634	int fd = IPC_GET_ARG1(*request);

Subversion Repositories HelenOS

(root)//trunk/uspace/srv/vfs/vfs_ops.c – Rev 4437 → 4443