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| author | Joan Lledó <joanlluislledo@gmail.com> | 2018-08-11 18:17:09 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-08-14 00:36:20 +0200 |
| commit | 829970b29fa73cdfdc0a5e229411c2f31cf4a3fb (patch) | |
| tree | d8c76227a33d9a35ab671b5f663b7cdd2b72ddd7 /lwip | |
| parent | 9deab2b025e1aa512d1378753dbe1e1ef43686b8 (diff) | |
| download | hurd-829970b29fa73cdfdc0a5e229411c2f31cf4a3fb.tar.gz hurd-829970b29fa73cdfdc0a5e229411c2f31cf4a3fb.tar.bz2 hurd-829970b29fa73cdfdc0a5e229411c2f31cf4a3fb.zip | |
lwip: return EINTR when a select() IPC thread is cancelled
Needed to properly support poll in glibc (_hurd_select).
* lwip/io-ops.c (lwip_io_select_common): Detect when the
current RPC is cancelled by checking the reply port.
Diffstat (limited to 'lwip')
| -rw-r--r-- | lwip/io-ops.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lwip/io-ops.c b/lwip/io-ops.c index 1429bc55..72e08e26 100644 --- a/lwip/io-ops.c +++ b/lwip/io-ops.c @@ -198,6 +198,8 @@ lwip_io_select_common (struct sock_user *user, int timeout; struct pollfd fdp; nfds_t nfds; + mach_port_type_t type; + error_t err; if (!user) return EOPNOTSUPP; @@ -227,6 +229,12 @@ lwip_io_select_common (struct sock_user *user, timeout = tv ? tv->tv_sec * 1000 + tv->tv_nsec / 1000000 : -1; ret = lwip_poll (&fdp, nfds, timeout); + err = mach_port_type (mach_task_self (), reply, &type); + if (err || (type & MACH_PORT_TYPE_DEAD_NAME)) + /* The reply port is dead, we were cancelled */ + return EINTR; + + if (ret > 0) { if (fdp.revents & POLLERR) |