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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-28 00:15:56 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-06-28 00:38:46 +0000 |
| commit | 67a78072e2891b8b16a7bfb20675844a5854cff1 (patch) | |
| tree | 9eba275153b88aaca083b65c6c2d746f37f0f2e1 /hurd/port-cleanup.c | |
| parent | 6414eef6e013f46ee94d5f961af15659e1933182 (diff) | |
| download | glibc-67a78072e2891b8b16a7bfb20675844a5854cff1.tar.gz glibc-67a78072e2891b8b16a7bfb20675844a5854cff1.tar.xz glibc-67a78072e2891b8b16a7bfb20675844a5854cff1.zip | |
hurd: clean fd and port on thread cancel
HURD_*PORT_USE link fd and port with a stack-stored structure, so on thread cancel we need to cleanup this. * hurd/fd-cleanup.c: New file. * hurd/port-cleanup.c (_hurd_port_use_cleanup): New function. * hurd/Makefile (routines): Add fd-cleanup. * sysdeps/hurd/include/hurd.h (__USEPORT_CANCEL): New macro. * sysdeps/hurd/include/hurd/fd.h (_hurd_fd_port_use_data): New structure. (_hurd_fd_port_use_cleanup): New prototype. (HURD_DPORT_USE_CANCEL, HURD_FD_PORT_USE_CANCEL): New macros. * sysdeps/hurd/include/hurd/port.h (_hurd_port_use_data): New structure. (_hurd_port_use_cleanup): New prototype. (HURD_PORT_USE_CANCEL): New macro. * hurd/hurd/fd.h (HURD_FD_PORT_USE): Also refer to HURD_FD_PORT_USE_CANCEL. * hurd/hurd.h (__USEPORT): Also refer to __USEPORT_CANCEL. * hurd/hurd/port.h (HURD_PORT_USE): Also refer to HURD_PORT_USE_CANCEL. * hurd/fd-read.c (_hurd_fd_read): Call HURD_FD_PORT_USE_CANCEL instead of HURD_FD_PORT_USE. * hurd/fd-write.c (_hurd_fd_write): Likewise. * sysdeps/mach/hurd/send.c (__send): Call HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE. * sysdeps/mach/hurd/sendmsg.c (__libc_sendmsg): Likewise. * sysdeps/mach/hurd/sendto.c (__sendto): Likewise. * sysdeps/mach/hurd/recv.c (__recv): Likewise. * sysdeps/mach/hurd/recvfrom.c (__recvfrom): Likewise. * sysdeps/mach/hurd/recvmsg.c (__libc_recvmsg): Call __USEPORT_CANCEL instead of __USEPORT, and HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
Diffstat (limited to 'hurd/port-cleanup.c')
| -rw-r--r-- | hurd/port-cleanup.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/hurd/port-cleanup.c b/hurd/port-cleanup.c index 0bb8267743..95b019c4c0 100644 --- a/hurd/port-cleanup.c +++ b/hurd/port-cleanup.c @@ -1,4 +1,4 @@ -/* Cleanup function for `struct hurd_port' users who longjmp. +/* Cleanup function for `struct hurd_port' users. Copyright (C) 1995-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -28,3 +28,14 @@ _hurd_port_cleanup (void *cleanup_data, jmp_buf env, int val) { __mach_port_deallocate (__mach_task_self (), (mach_port_t) cleanup_data); } + +/* We were cancelled while using a port, and called from the cleanup unwinding. + */ + +void +_hurd_port_use_cleanup (void *arg) +{ + struct _hurd_port_use_data *data = arg; + + _hurd_port_free (data->p, &data->link, data->port); +} |