1 #include <lib/base/filepush.h>
2 #include <lib/base/eerror.h>
9 eFilePushThread::eFilePushThread(): m_messagepump(eApp, 0)
15 CONNECT(m_messagepump.recv_msg, eFilePushThread::recvEvent);
18 static void signal_handler(int x)
22 void eFilePushThread::thread()
24 off_t dest_pos = 0, source_pos = 0;
25 size_t bytes_read = 0;
27 off_t current_span_offset = 0;
28 size_t current_span_remaining = 0;
30 int already_empty = 0;
31 eDebug("FILEPUSH THREAD START");
32 // this is a race. FIXME.
34 /* we set the signal to not restart syscalls, so we can detect our signal. */
36 act.sa_handler = signal_handler; // no, SIG_IGN doesn't do it. we want to receive the -EINTR
38 sigaction(SIGUSR1, &act, 0);
40 dest_pos = lseek(m_fd_dest, 0, SEEK_CUR);
41 source_pos = lseek(m_fd_source, 0, SEEK_CUR);
43 /* m_stop must be evaluated after each syscall. */
46 /* first try flushing the bufptr */
47 if (m_buf_start != m_buf_end)
49 // TODO: take care of boundaries.
50 int w = write(m_fd_dest, m_buffer + m_buf_start, m_buf_end - m_buf_start);
51 // eDebug("wrote %d bytes", w);
57 // ... we would stop the thread
60 /* this should flush all written pages to disk. */
61 posix_fadvise(m_fd_dest, dest_pos, w, POSIX_FADV_DONTNEED);
64 // printf("FILEPUSH: wrote %d bytes\n", w);
69 /* now fill our buffer. */
71 if (m_sg && !current_span_remaining)
73 m_sg->getNextSourceSpan(source_pos, bytes_read, current_span_offset, current_span_remaining);
75 if (source_pos != current_span_offset)
76 source_pos = lseek(m_fd_source, current_span_offset, SEEK_SET);
80 size_t maxread = sizeof(m_buffer);
82 /* if we have a source span, don't read past the end */
83 if (m_sg && maxread > current_span_remaining)
84 maxread = current_span_remaining;
90 m_buf_end = read(m_fd_source, m_buffer, maxread);
97 eDebug("eFilePushThread *read error* - not yet handled");
101 /* on EOF, try COMMITting once. */
102 if (m_send_pvr_commit && !already_empty)
104 eDebug("sending PVR commit");
106 if (::ioctl(m_fd_dest, PVR_COMMIT) == EINTR)
108 eDebug("commit done");
109 /* well check again */
114 eDebug("FILEPUSH: end-of-file! (currently unhandled)");
115 if (!lseek(m_fd_source, 0, SEEK_SET))
124 source_pos += m_buf_end;
125 bytes_read += m_buf_end;
127 current_span_remaining -= m_buf_end;
130 // printf("FILEPUSH: read %d bytes\n", m_buf_end);
133 eDebug("FILEPUSH THREAD STOP");
136 void eFilePushThread::start(int fd_source, int fd_dest)
138 m_fd_source = fd_source;
143 void eFilePushThread::stop()
145 if (!thread_running()) /* FIXME: races */
152 void eFilePushThread::pause()
157 void eFilePushThread::seek(int whence, off_t where)
159 ::lseek(m_fd_source, where, whence);
162 void eFilePushThread::resume()
168 void eFilePushThread::flush()
170 m_buf_start = m_buf_end = 0;
173 void eFilePushThread::enablePVRCommit(int s)
175 m_send_pvr_commit = s;
178 void eFilePushThread::setScatterGather(iFilePushScatterGather *sg)
183 void eFilePushThread::sendEvent(int evt)
185 m_messagepump.send(evt);
188 void eFilePushThread::recvEvent(const int &evt)