Function safe_write

src/ae.cpp:200–227

Unlike write() this is an all or nothing thing. We will block if a partial write is hit

// Unlike write() this is an all or nothing thing.  We will block if a partial write is hit
ssize_t safe_write(int fd, const void *pv, size_t cb)
{
    const char *pcb = (const char*)pv;
    ssize_t written = 0;
    do
    {
        ssize_t rval = write(fd, pcb, cb);
        if (rval > 0)
        {
            pcb += rval;
            cb -= rval;
            written += rval;
        }
        else if (errno == EAGAIN)
        {
            if (written == 0)
                break;
            // if we've already written something then we're committed so keep trying
        }
        else
        {
            if (rval == 0)
                return written;
            return rval;
        }
    } while (cb);
    return written;
}

int aeCreateRemoteFileEvent(aeEventLoop *eventLoop, int fd, int mask,
        aeFileProc *proc, void *clientData)