diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/drivers/common/efile_drv.c | 74 |
1 files changed, 46 insertions, 28 deletions
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c index 36ed108b76..98c0c9b59c 100644 --- a/erts/emulator/drivers/common/efile_drv.c +++ b/erts/emulator/drivers/common/efile_drv.c @@ -259,6 +259,7 @@ static void file_stop_select(ErlDrvEvent event, void* _); enum e_timer {timer_idle, timer_again, timer_write}; #ifdef HAVE_SENDFILE enum e_sendfile {sending, not_sending}; +static void free_sendfile(void *data); #endif /* HAVE_SENDFILE */ struct t_data; @@ -445,6 +446,8 @@ struct t_data } fadvise; #ifdef HAVE_SENDFILE struct { + ErlDrvPort port; + ErlDrvPDL q_mtx; int out_fd; off_t offset; Uint64 nbytes; @@ -752,15 +755,6 @@ file_stop(ErlDrvData e) TRACE_C('p'); -#ifdef HAVE_SENDFILE - if (desc->sendfile_state == sending && !USE_THRDS_FOR_SENDFILE) { - driver_select(desc->port,(ErlDrvEvent)(long)desc->d->c.sendfile.out_fd, - ERL_DRV_WRITE|ERL_DRV_USE,0); - } else if (desc->sendfile_state == sending) { - SET_NONBLOCKING(desc->d->c.sendfile.out_fd); - } -#endif /* HAVE_SENDFILE */ - if (desc->fd != FILE_FD_INVALID) { do_close(desc->flags, desc->fd); desc->fd = FILE_FD_INVALID; @@ -1803,6 +1797,15 @@ static void invoke_sendfile(void *data) } static void free_sendfile(void *data) { + struct t_data *d = (struct t_data *)data; + if (USE_THRDS_FOR_SENDFILE) { + SET_NONBLOCKING(d->c.sendfile.out_fd); + } else { + MUTEX_LOCK(d->c.sendfile.q_mtx); + driver_deq(d->c.sendfile.port,1); + MUTEX_UNLOCK(d->c.sendfile.q_mtx); + driver_select(d->c.sendfile.port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, ERL_DRV_USE|ERL_DRV_WRITE, 0); + } EF_FREE(data); } @@ -1812,7 +1815,7 @@ static void file_ready_output(ErlDrvData data, ErlDrvEvent event) switch (fd->d->command) { case FILE_SENDFILE: - driver_select(fd->port, event, + driver_select(fd->d->c.sendfile.port, event, (int)ERL_DRV_WRITE,(int) 0); invoke_sendfile((void *)fd->d); file_async_ready(data, (ErlDrvThreadData)fd->d); @@ -1826,6 +1829,15 @@ static void file_stop_select(ErlDrvEvent event, void* _) { } + +static int flush_sendfile(file_descriptor *desc,void *_) { + if (desc->sendfile_state == sending) { + desc->d->result_ok = -1; + desc->d->errInfo.posix_errno = ECONNABORTED; + file_async_ready((ErlDrvData)desc,(ErlDrvThreadData)desc->d); + } + return 1; +} #endif /* HAVE_SENDFILE */ @@ -2248,31 +2260,18 @@ file_async_ready(ErlDrvData e, ErlDrvThreadData data) #ifdef HAVE_SENDFILE case FILE_SENDFILE: if (d->result_ok == -1) { - desc->sendfile_state = not_sending; if (d->errInfo.posix_errno == ECONNRESET || d->errInfo.posix_errno == ENOTCONN || d->errInfo.posix_errno == EPIPE) reply_string_error(desc,"closed"); else reply_error(desc, &d->errInfo); - if (USE_THRDS_FOR_SENDFILE) { - SET_NONBLOCKING(d->c.sendfile.out_fd); - free_sendfile(data); - } else { - driver_select(desc->port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, - ERL_DRV_USE, 0); - free_sendfile(data); - } - } else if (d->result_ok == 0) { desc->sendfile_state = not_sending; + free_sendfile(data); + } else if (d->result_ok == 0) { reply_Sint64(desc, d->c.sendfile.written); - if (USE_THRDS_FOR_SENDFILE) { - SET_NONBLOCKING(d->c.sendfile.out_fd); - free_sendfile(data); - } else { - driver_select(desc->port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, ERL_DRV_USE, 0); - free_sendfile(data); - } + desc->sendfile_state = not_sending; + free_sendfile(data); } else if (d->result_ok == 1) { // If we are using select to send the rest of the data desc->sendfile_state = sending; desc->d = d; @@ -2655,6 +2654,10 @@ file_flush(ErlDrvData e) { TRACE_C('f'); +#ifdef HAVE_SENDFILE + flush_sendfile(desc, NULL); +#endif + #ifdef DEBUG r = #endif @@ -3454,11 +3457,13 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) { d->fd = desc->fd; d->command = command; d->invoke = invoke_sendfile; - d->free = NULL; + d->free = free_sendfile; d->level = 2; d->c.sendfile.out_fd = (int) out_fd; d->c.sendfile.written = 0; + d->c.sendfile.port = desc->port; + d->c.sendfile.q_mtx = desc->q_mtx; #if SIZEOF_OFF_T == 4 if (offsetH != 0) { @@ -3474,6 +3479,19 @@ file_outputv(ErlDrvData e, ErlIOVec *ev) { if (USE_THRDS_FOR_SENDFILE) { SET_BLOCKING(d->c.sendfile.out_fd); + } else { + /** + * Write a place holder to queue in order to force file_flush + * to be called before the driver is closed. + */ + char tmp[1] = ""; + MUTEX_LOCK(d->c.sendfile.q_mtx); + if (driver_enq(d->c.sendfile.port, tmp, 1)) { + MUTEX_UNLOCK(d->c.sendfile.q_mtx); + reply_posix_error(desc, ENOMEM); + goto done; + } + MUTEX_UNLOCK(d->c.sendfile.q_mtx); } cq_enq(desc, d); |