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()
25 size_t bytes_read = 0;
27 off_t current_span_offset;
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 /* m_stop must be evaluated after each syscall. */
44 /* first try flushing the bufptr */
45 if (m_buf_start != m_buf_end)
47 // TODO: take care of boundaries.
48 int w = write(m_fd_dest, m_buffer + m_buf_start, m_buf_end - m_buf_start);
49 // eDebug("wrote %d bytes", w);
54 eDebug("eFilePushThread *write error* (%m) - not yet handled");
55 // ... we would stop the thread
58 /* this should flush all written pages to disk. */
59 posix_fadvise(m_fd_dest, dest_pos, w, POSIX_FADV_DONTNEED);
62 // printf("FILEPUSH: wrote %d bytes\n", w);
67 /* now fill our buffer. */
69 if (m_sg && !current_span_remaining)
71 m_sg->getNextSourceSpan(bytes_read, current_span_offset, current_span_remaining);
75 size_t maxread = sizeof(m_buffer);
77 /* if we have a source span, don't read past the end */
78 if (m_sg && maxread < current_span_remaining)
79 maxread = current_span_remaining;
85 m_buf_end = read(m_fd_source, m_buffer, maxread);
87 bytes_read += m_buf_end;
94 eDebug("eFilePushThread *read error* - not yet handled");
98 /* on EOF, try COMMITting once. */
99 if (m_send_pvr_commit && !already_empty)
101 eDebug("sending PVR commit");
103 if (::ioctl(m_fd_dest, PVR_COMMIT) == EINTR)
105 eDebug("commit done");
106 /* well check again */
111 eDebug("FILEPUSH: end-of-file! (currently unhandled)");
112 if (!lseek(m_fd_source, 0, SEEK_SET))
121 // printf("FILEPUSH: read %d bytes\n", m_buf_end);
124 eDebug("FILEPUSH THREAD STOP");
127 void eFilePushThread::start(int fd_source, int fd_dest)
129 m_fd_source = fd_source;
134 void eFilePushThread::stop()
136 if (!thread_running()) /* FIXME: races */
143 void eFilePushThread::pause()
148 void eFilePushThread::seek(int whence, off_t where)
150 ::lseek(m_fd_source, where, whence);
153 void eFilePushThread::resume()
159 void eFilePushThread::flush()
161 m_buf_start = m_buf_end = 0;
164 void eFilePushThread::enablePVRCommit(int s)
166 m_send_pvr_commit = s;
169 void eFilePushThread::sendEvent(int evt)
171 m_messagepump.send(evt);
174 void eFilePushThread::recvEvent(const int &evt)