Exemple #1
0
PR_CancelJob(PRJob *jobp) {

	PRStatus rval = PR_FAILURE;
	PRThreadPool *tp;

	if (jobp->on_timerq) {
		/*
		 * now, check again while holding the timerq lock
		 */
		tp = jobp->tpool;
		PR_Lock(tp->timerq.lock);
		if (jobp->on_timerq) {
			jobp->on_timerq = PR_FALSE;
			PR_REMOVE_AND_INIT_LINK(&jobp->links);
			tp->timerq.cnt--;
			PR_Unlock(tp->timerq.lock);
			if (!JOINABLE_JOB(jobp)) {
				delete_job(jobp);
			} else {
				JOIN_NOTIFY(jobp);
			}
			rval = PR_SUCCESS;
		} else
			PR_Unlock(tp->timerq.lock);
	} else if (jobp->on_ioq) {
		/*
		 * now, check again while holding the ioq lock
		 */
		tp = jobp->tpool;
		PR_Lock(tp->ioq.lock);
		if (jobp->on_ioq) {
			jobp->cancel_cv = PR_NewCondVar(tp->ioq.lock);
			if (NULL == jobp->cancel_cv) {
				PR_Unlock(tp->ioq.lock);
				PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
				return PR_FAILURE;
			}
			/*
			 * mark job 'cancelled' and notify io thread(s)
			 * XXXX:
			 *		this assumes there is only one io thread; when there
			 * 		are multiple threads, the io thread processing this job
			 * 		must be notified.
			 */
			jobp->cancel_io = PR_TRUE;
			PR_Unlock(tp->ioq.lock);	/* release, reacquire ioq lock */
			notify_ioq(tp);
			PR_Lock(tp->ioq.lock);
			while (jobp->cancel_io)
				PR_WaitCondVar(jobp->cancel_cv, PR_INTERVAL_NO_TIMEOUT);
			PR_Unlock(tp->ioq.lock);
			PR_ASSERT(!jobp->on_ioq);
			if (!JOINABLE_JOB(jobp)) {
				delete_job(jobp);
			} else {
				JOIN_NOTIFY(jobp);
			}
			rval = PR_SUCCESS;
		} else
			PR_Unlock(tp->ioq.lock);
	}
	if (PR_FAILURE == rval)
		PR_SetError(PR_INVALID_STATE_ERROR, 0);
	return rval;
}
Exemple #2
0
PR_QueueJob_Timer(PRThreadPool *tpool, PRIntervalTime timeout,
							PRJobFn fn, void * arg, PRBool joinable)
{
	PRIntervalTime now;
	PRJob *jobp;

	if (PR_INTERVAL_NO_TIMEOUT == timeout) {
		PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
		return NULL;
	}
	if (PR_INTERVAL_NO_WAIT == timeout) {
		/*
		 * no waiting; add to jobq right away
		 */
		return(PR_QueueJob(tpool, fn, arg, joinable));
	}
	jobp = alloc_job(joinable, tpool);
	if (NULL == jobp) {
		return NULL;
	}

	/*
	 * Add a new job to timer_jobq
	 * wakeup timer worker thread
	 */

	jobp->job_func = fn;
	jobp->job_arg = arg;
	jobp->tpool = tpool;
	jobp->timeout = timeout;

	now = PR_IntervalNow();
	jobp->absolute = now + timeout;


	PR_Lock(tpool->timerq.lock);
	jobp->on_timerq = PR_TRUE;
	if (PR_CLIST_IS_EMPTY(&tpool->timerq.list))
		PR_APPEND_LINK(&jobp->links,&tpool->timerq.list);
	else {
		PRCList *qp;
		PRJob *tmp_jobp;
		/*
		 * insert into the sorted timer jobq
		 */
		for (qp = tpool->timerq.list.prev; qp != &tpool->timerq.list;
							qp = qp->prev) {
			tmp_jobp = JOB_LINKS_PTR(qp);
			if ((PRInt32)(jobp->absolute - tmp_jobp->absolute) >= 0) {
				break;
			}
		}
		PR_INSERT_AFTER(&jobp->links,qp);
	}
	tpool->timerq.cnt++;
	/*
	 * notify timer worker thread(s)
	 */
	notify_timerq(tpool);
	PR_Unlock(tpool->timerq.lock);
	return jobp;
}
Exemple #3
0
/* queue a job, when a socket is readable or writeable */
static PRJob *
queue_io_job(PRThreadPool *tpool, PRJobIoDesc *iod, PRJobFn fn, void * arg,
				PRBool joinable, io_op_type op)
{
	PRJob *jobp;
	PRIntervalTime now;

	jobp = alloc_job(joinable, tpool);
	if (NULL == jobp) {
		return NULL;
	}

	/*
	 * Add a new job to io_jobq
	 * wakeup io worker thread
	 */

	jobp->job_func = fn;
	jobp->job_arg = arg;
	jobp->tpool = tpool;
	jobp->iod = iod;
	if (JOB_IO_READ == op) {
		jobp->io_op = JOB_IO_READ;
		jobp->io_poll_flags = PR_POLL_READ;
	} else if (JOB_IO_WRITE == op) {
		jobp->io_op = JOB_IO_WRITE;
		jobp->io_poll_flags = PR_POLL_WRITE;
	} else if (JOB_IO_ACCEPT == op) {
		jobp->io_op = JOB_IO_ACCEPT;
		jobp->io_poll_flags = PR_POLL_READ;
	} else if (JOB_IO_CONNECT == op) {
		jobp->io_op = JOB_IO_CONNECT;
		jobp->io_poll_flags = PR_POLL_WRITE|PR_POLL_EXCEPT;
	} else {
		delete_job(jobp);
		PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
		return NULL;
	}

	jobp->timeout = iod->timeout;
	if ((PR_INTERVAL_NO_TIMEOUT == iod->timeout) ||
			(PR_INTERVAL_NO_WAIT == iod->timeout)) {
		jobp->absolute = iod->timeout;
	} else {
		now = PR_IntervalNow();
		jobp->absolute = now + iod->timeout;
	}


	PR_Lock(tpool->ioq.lock);

	if (PR_CLIST_IS_EMPTY(&tpool->ioq.list) ||
			(PR_INTERVAL_NO_TIMEOUT == iod->timeout)) {
		PR_APPEND_LINK(&jobp->links,&tpool->ioq.list);
	} else if (PR_INTERVAL_NO_WAIT == iod->timeout) {
		PR_INSERT_LINK(&jobp->links,&tpool->ioq.list);
	} else {
		PRCList *qp;
		PRJob *tmp_jobp;
		/*
		 * insert into the timeout-sorted ioq
		 */
		for (qp = tpool->ioq.list.prev; qp != &tpool->ioq.list;
							qp = qp->prev) {
			tmp_jobp = JOB_LINKS_PTR(qp);
			if ((PRInt32)(jobp->absolute - tmp_jobp->absolute) >= 0) {
				break;
			}
		}
		PR_INSERT_AFTER(&jobp->links,qp);
	}

	jobp->on_ioq = PR_TRUE;
	tpool->ioq.cnt++;
	/*
	 * notify io worker thread(s)
	 */
	PR_Unlock(tpool->ioq.lock);
	notify_ioq(tpool);
	return jobp;
}
Exemple #4
0
PRInt32
_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info)
{
    HANDLE hFindFile;
    WIN32_FIND_DATA findFileData;
    char pathbuf[MAX_PATH + 1];
    
    if (NULL == fn || '\0' == *fn) {
        PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
        return -1;
    }

    /*
     * FindFirstFile() expands wildcard characters.  So
     * we make sure the pathname contains no wildcard.
     */
    if (NULL != _mbspbrk(fn, "?*")) {
        PR_SetError(PR_FILE_NOT_FOUND_ERROR, 0);
        return -1;
    }

    hFindFile = FindFirstFile(fn, &findFileData);
    if (INVALID_HANDLE_VALUE == hFindFile) {
        DWORD len;
        char *filePart;

        /*
         * FindFirstFile() does not work correctly on root directories.
         * It also doesn't work correctly on a pathname that ends in a
         * slash.  So we first check to see if the pathname specifies a
         * root directory.  If not, and if the pathname ends in a slash,
         * we remove the final slash and try again.
         */

        /*
         * If the pathname does not contain ., \, and /, it cannot be
         * a root directory or a pathname that ends in a slash.
         */
        if (NULL == _mbspbrk(fn, ".\\/")) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        } 
        len = GetFullPathName(fn, sizeof(pathbuf), pathbuf,
                &filePart);
        if (0 == len) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        }
        if (len > sizeof(pathbuf)) {
            PR_SetError(PR_NAME_TOO_LONG_ERROR, 0);
            return -1;
        }
        if (IsRootDirectory(pathbuf, sizeof(pathbuf))) {
            info->type = PR_FILE_DIRECTORY;
            info->size = 0;
            /*
             * These timestamps don't make sense for root directories.
             */
            info->modifyTime = 0;
            info->creationTime = 0;
            return 0;
        }
        if (!_PR_IS_SLASH(pathbuf[len - 1])) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        } else {
            pathbuf[len - 1] = '\0';
            hFindFile = FindFirstFile(pathbuf, &findFileData);
            if (INVALID_HANDLE_VALUE == hFindFile) {
                _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
                return -1;
            }
        }
    }

    FindClose(hFindFile);

    if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
        info->type = PR_FILE_DIRECTORY;
    } else {
        info->type = PR_FILE_FILE;
    }

    info->size = findFileData.nFileSizeHigh;
    info->size = (info->size << 32) + findFileData.nFileSizeLow;

    _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime);

    if (0 == findFileData.ftCreationTime.dwLowDateTime &&
            0 == findFileData.ftCreationTime.dwHighDateTime) {
        info->creationTime = info->modifyTime;
    } else {
        _PR_FileTimeToPRTime(&findFileData.ftCreationTime,
                &info->creationTime);
    }

    return 0;
}
Exemple #5
0
PRInt32
_PR_MD_OPEN_FILE_UTF16(const PRUnichar *name, PRIntn osflags, int mode)
{
    HANDLE file;
    PRInt32 access = 0;
    PRInt32 flags = 0;
    PRInt32 flag6 = 0;
    SECURITY_ATTRIBUTES sa;
    LPSECURITY_ATTRIBUTES lpSA = NULL;
    PSECURITY_DESCRIPTOR pSD = NULL;
    PACL pACL = NULL;

    if (!createFileW) {
        PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
        return -1;
    }
 
    if (osflags & PR_CREATE_FILE) {
        if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable,
                &pSD, &pACL) == PR_SUCCESS) {
            sa.nLength = sizeof(sa);
            sa.lpSecurityDescriptor = pSD;
            sa.bInheritHandle = FALSE;
            lpSA = &sa;
        }
    }

    if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH;

    if (osflags & PR_RDONLY || osflags & PR_RDWR)
        access |= GENERIC_READ;
    if (osflags & PR_WRONLY || osflags & PR_RDWR)
        access |= GENERIC_WRITE;
 
    if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
        flags = CREATE_NEW;
    else if (osflags & PR_CREATE_FILE) {
        if (osflags & PR_TRUNCATE)
            flags = CREATE_ALWAYS;
        else
            flags = OPEN_ALWAYS;
    } else {
        if (osflags & PR_TRUNCATE)
            flags = TRUNCATE_EXISTING;
        else
            flags = OPEN_EXISTING;
    }

    file = createFileW(name,
                       access,
                       FILE_SHARE_READ|FILE_SHARE_WRITE,
                       lpSA,
                       flags,
                       flag6,
                       NULL);
    if (lpSA != NULL) {
        _PR_NT_FreeSecurityDescriptorACL(pSD, pACL);
    }
    if (file == INVALID_HANDLE_VALUE) {
        _PR_MD_MAP_OPEN_ERROR(GetLastError());
        return -1;
    }
 
    return (PRInt32)file;
}
Exemple #6
0
PRStatus
_PR_MD_TLOCKFILE(PRInt32 f)
{
    PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 );
    return PR_FAILURE;
} /* end _PR_MD_TLOCKFILE() */