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authorLukas Larsson <[email protected]>2019-01-17 13:41:58 +0100
committerLukas Larsson <[email protected]>2019-01-18 14:56:56 +0100
commit336eea33ebb8287736327370607c77a9589f7e0b (patch)
tree7d24011eba6226f629c3ab730b32d80b5ff561e2 /erts/emulator
parentf0ea49125815ec9197ffb6c74e20ebb5f10732d4 (diff)
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erts: Fix too early close of spawn driver fd
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/sys/unix/sys_drivers.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c
index 816bdea9c5..2f5459bee5 100644
--- a/erts/emulator/sys/unix/sys_drivers.c
+++ b/erts/emulator/sys/unix/sys_drivers.c
@@ -998,9 +998,9 @@ static void clear_fd_data(ErtsSysFdData *fdd)
fdd->psz = 0;
}
-static void nbio_stop_fd(ErlDrvPort prt, ErtsSysFdData *fdd)
+static void nbio_stop_fd(ErlDrvPort prt, ErtsSysFdData *fdd, int use)
{
- driver_select(prt, abs(fdd->fd), ERL_DRV_USE_NO_CALLBACK|DO_READ|DO_WRITE, 0);
+ driver_select(prt, abs(fdd->fd), use ? ERL_DRV_USE_NO_CALLBACK : 0|DO_READ|DO_WRITE, 0);
clear_fd_data(fdd);
SET_BLOCKING(abs(fdd->fd));
@@ -1020,11 +1020,11 @@ static void fd_stop(ErlDrvData ev) /* Does not close the fds */
if (dd->ifd) {
sz += sizeof(ErtsSysFdData);
- nbio_stop_fd(prt, dd->ifd);
+ nbio_stop_fd(prt, dd->ifd, 1);
}
if (dd->ofd && dd->ofd != dd->ifd) {
sz += sizeof(ErtsSysFdData);
- nbio_stop_fd(prt, dd->ofd);
+ nbio_stop_fd(prt, dd->ofd, 1);
}
erts_free(ERTS_ALC_T_DRV_TAB, dd);
@@ -1070,12 +1070,12 @@ static void stop(ErlDrvData ev)
ErlDrvPort prt = dd->port_num;
if (dd->ifd) {
- nbio_stop_fd(prt, dd->ifd);
+ nbio_stop_fd(prt, dd->ifd, 0);
driver_select(prt, abs(dd->ifd->fd), ERL_DRV_USE, 0); /* close(ifd); */
}
if (dd->ofd && dd->ofd != dd->ifd) {
- nbio_stop_fd(prt, dd->ofd);
+ nbio_stop_fd(prt, dd->ofd, 0);
driver_select(prt, abs(dd->ofd->fd), ERL_DRV_USE, 0); /* close(ofd); */
}