#include <lib/base/filepush.h>
#include <lib/base/eerror.h>
#include <errno.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
-eFilePushThread::eFilePushThread()
+#define PVR_COMMIT 1
+
+eFilePushThread::eFilePushThread(int io_prio_class, int io_prio_level)
+ :prio_class(io_prio_class), prio(io_prio_level), m_messagepump(eApp, 0)
{
m_stop = 0;
- m_buf_start = m_buf_end = 0;
+ m_sg = 0;
+ flush();
+ enablePVRCommit(0);
+ CONNECT(m_messagepump.recv_msg, eFilePushThread::recvEvent);
}
static void signal_handler(int x)
void eFilePushThread::thread()
{
+ setIoPrio(prio_class, prio);
+
+ off_t dest_pos = 0, source_pos = 0;
+ size_t bytes_read = 0;
+
+ off_t current_span_offset = 0;
+ size_t current_span_remaining = 0;
+
+ size_t written_since_last_sync = 0;
+
+ int already_empty = 0;
eDebug("FILEPUSH THREAD START");
- // this is a race. FIXME.
/* we set the signal to not restart syscalls, so we can detect our signal. */
struct sigaction act;
act.sa_flags = 0;
sigaction(SIGUSR1, &act, 0);
+ hasStarted();
+
+ source_pos = m_raw_source.lseek(0, SEEK_CUR);
+
/* m_stop must be evaluated after each syscall. */
while (!m_stop)
{
if (m_buf_start != m_buf_end)
{
// TODO: take care of boundaries.
+ filterRecordData(m_buffer + m_buf_start, m_buf_end - m_buf_start);
int w = write(m_fd_dest, m_buffer + m_buf_start, m_buf_end - m_buf_start);
+// eDebug("wrote %d bytes", w);
if (w <= 0)
{
- if (errno == -EINTR)
+ if (errno == EINTR)
continue;
- eDebug("eFilePushThread *write error* - not yet handled");
+ break;
// ... we would stop the thread
}
+
+ written_since_last_sync += w;
+
+ if (written_since_last_sync >= 512*1024)
+ {
+ int toflush = written_since_last_sync > 2*1024*1024 ?
+ 2*1024*1024 : written_since_last_sync &~ 4095; // write max 2MB at once
+ dest_pos = lseek(m_fd_dest, 0, SEEK_CUR);
+ dest_pos -= toflush;
+ posix_fadvise(m_fd_dest, dest_pos, toflush, POSIX_FADV_DONTNEED);
+ written_since_last_sync -= toflush;
+ }
+
// printf("FILEPUSH: wrote %d bytes\n", w);
m_buf_start += w;
continue;
}
-
+
/* now fill our buffer. */
+
+ if (m_sg && !current_span_remaining)
+ {
+ m_sg->getNextSourceSpan(source_pos, bytes_read, current_span_offset, current_span_remaining);
+
+ if (source_pos != current_span_offset)
+ source_pos = m_raw_source.lseek(current_span_offset, SEEK_SET);
+ bytes_read = 0;
+ }
+
+ size_t maxread = sizeof(m_buffer);
+
+ /* if we have a source span, don't read past the end */
+ if (m_sg && maxread > current_span_remaining)
+ maxread = current_span_remaining;
+
m_buf_start = 0;
- m_buf_end = read(m_fd_source, m_buffer, sizeof(m_buffer));
+ m_buf_end = 0;
+
+ if (maxread)
+ m_buf_end = m_raw_source.read(m_buffer, maxread);
+
if (m_buf_end < 0)
{
m_buf_end = 0;
if (errno == EINTR)
continue;
- eDebug("eFilePushThread *read error* - not yet handled");
+ if (errno == EOVERFLOW)
+ {
+ eWarning("OVERFLOW while recording");
+ continue;
+ }
+ eDebug("eFilePushThread *read error* (%m) - not yet handled");
}
if (m_buf_end == 0)
{
+ /* on EOF, try COMMITting once. */
+ if (m_send_pvr_commit && !already_empty)
+ {
+ eDebug("sending PVR commit");
+ already_empty = 1;
+ if (::ioctl(m_fd_dest, PVR_COMMIT) < 0 && errno == EINTR)
+ continue;
+ eDebug("commit done");
+ /* well check again */
+ continue;
+ }
+ sendEvent(evtEOF);
+#if 0
eDebug("FILEPUSH: end-of-file! (currently unhandled)");
- if (!lseek(m_fd_source, 0, SEEK_SET))
+ if (!m_raw_source.lseek(0, SEEK_SET))
{
eDebug("(looping)");
continue;
}
+#endif
break;
+ } else
+ {
+ source_pos += m_buf_end;
+ bytes_read += m_buf_end;
+ if (m_sg)
+ current_span_remaining -= m_buf_end;
+ already_empty = 0;
}
// printf("FILEPUSH: read %d bytes\n", m_buf_end);
}
-
+ fdatasync(m_fd_dest);
+
eDebug("FILEPUSH THREAD STOP");
}
void eFilePushThread::start(int fd_source, int fd_dest)
{
- m_fd_source = fd_source;
+ m_raw_source.setfd(fd_source);
m_fd_dest = fd_dest;
- m_stop = 0;
- run();
+ resume();
+}
+
+int eFilePushThread::start(const char *filename, int fd_dest)
+{
+ if (m_raw_source.open(filename) < 0)
+ return -1;
+ m_fd_dest = fd_dest;
+ resume();
+ return 0;
}
void eFilePushThread::stop()
{
+ /* if we aren't running, don't bother stopping. */
+ if (!sync())
+ return;
+
m_stop = 1;
sendSignal(SIGUSR1);
kill();
}
+
+void eFilePushThread::pause()
+{
+ stop();
+}
+
+void eFilePushThread::seek(int whence, off_t where)
+{
+ m_raw_source.lseek(where, whence);
+}
+
+void eFilePushThread::resume()
+{
+ m_stop = 0;
+ run();
+}
+
+void eFilePushThread::flush()
+{
+ m_buf_start = m_buf_end = 0;
+}
+
+void eFilePushThread::enablePVRCommit(int s)
+{
+ m_send_pvr_commit = s;
+}
+
+void eFilePushThread::setScatterGather(iFilePushScatterGather *sg)
+{
+ m_sg = sg;
+}
+
+void eFilePushThread::sendEvent(int evt)
+{
+ m_messagepump.send(evt);
+}
+
+void eFilePushThread::recvEvent(const int &evt)
+{
+ m_event(evt);
+}
+
+void eFilePushThread::filterRecordData(const unsigned char *data, int len)
+{
+ /* do nothing */
+}
+
git.cweiske.de / enigma2.git / blobdiff