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hurd: Add remaining cancelation points

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* hurd/hurdselect.c: Include <sysdep-cancel.h>.
(_hurd_select): Surround call to __mach_msg with enabling async cancel.
* sysdeps/mach/hurd/accept4.c: Include <sysdep-cancel.h>.
(__libc_accept4): Surround call to __socket_accept with enabling async cancel,
and use HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
* sysdeps/mach/hurd/connect.c: Include <sysdep-cancel.h>.
(__connect): Surround call to __file_name_lookup and __socket_connect
with enabling async cancel, and use HURD_DPORT_USE_CANCEL instead of
HURD_DPORT_USE.
* sysdeps/mach/hurd/fdatasync.c: Include <sysdep-cancel.h>.
(fdatasync): Surround call to __file_sync with enabling async cancel, and use
HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
* sysdeps/mach/hurd/fsync.c: Include <sysdep-cancel.h>.
(fsync): Surround call to __file_sync with enabling async cancel, and use
HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
* sysdeps/mach/hurd/ioctl.c: Include <sysdep-cancel.h>.
(__ioctl): When request is TIOCDRAIN, surround call to send_rpc with enabling
async cancel, and use HURD_DPORT_USE_CANCEL instead of HURD_DPORT_USE.
* sysdeps/mach/hurd/msync.c: Include <sysdep-cancel.h>.
(msync): Surround call to __vm_object_sync with enabling async cancel.
* sysdeps/mach/hurd/sigsuspend.c: Include <sysdep-cancel.h>.
(__sigsuspend): Surround call to __mach_msg with enabling async cancel.
* sysdeps/mach/hurd/sigwait.c: Include <sysdep-cancel.h>.
(__sigwait): Surround wait code with enabling async cancel.
* sysdeps/mach/msync.c: Include <sysdep-cancel.h>.
(msync): Surround call to __vm_msync with enabling async cancel.
* sysdeps/mach/sleep.c: Include <sysdep-cancel.h>.
(__sleep): Surround call to __mach_msg with enabling async cancel.
* sysdeps/mach/usleep.c: Include <sysdep-cancel.h>.
(usleep): Surround call to __vm_msync with enabling async cancel.
This commit is contained in:
Samuel Thibault
2020-06-28 22:41:18 +00:00
parent 1f3413338e
commit f512321130
12 changed files with 72 additions and 8 deletions
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9
sysdeps/mach/msync.c
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@ -20,6 +20,7 @@
#include <sys/mman.h>
#include <errno.h>
#include <mach.h>
#include <sysdep-cancel.h>
/* Some Mach variants have vm_msync and some don't. Those that have it
define the VM_SYNC_* bits when we include <mach/mach_types.h>. */
@ -37,6 +38,7 @@ msync (void *addr, size_t len, int flags)
{
vm_sync_t sync_flags = 0;
kern_return_t err;
int cancel_oldtype;
if (flags & MS_SYNC)
sync_flags |= VM_SYNC_SYNCHRONOUS;
@ -45,8 +47,11 @@ msync (void *addr, size_t len, int flags)
if (flags & MS_INVALIDATE)
sync_flags |= VM_SYNC_INVALIDATE;
if (err = __vm_msync (__mach_task_self (),
(vm_address_t) addr, (vm_size_t) len, sync_flags))
cancel_oldtype = LIBC_CANCEL_ASYNC();
err = __vm_msync (__mach_task_self (),
(vm_address_t) addr, (vm_size_t) len, sync_flags);
LIBC_CANCEL_RESET (cancel_oldtype);
if (err)
{
errno = err;
return -1;