i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "kernel/thread: restore signal mask just before returning to userland"

Browse Source 
This reverts commit 837f4f48db.

Reason for revert: breaks DNS resolution

Change-Id: If6f2a0f60dbfb24121616a9f3879ce226ea4a09a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3519
Reviewed-by: Jérôme Duval <[email protected]>
This commit is contained in:
Jérôme Duval
2021-01-16 16:50:43 +00:00
parent 60c165a53c
commit 6ff344d7c6
3 changed files with 14 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/system/kernel/wait_for_objects.cpp
+14 -11
View File
@@ -475,21 +475,15 @@ common_select(int numFDs, fd_set *readSet, fd_set *writeSet, fd_set *errorSet,
// set new signal mask
sigset_t oldSigMask;
if (sigMask != NULL) {
if (sigMask != NULL)
sigprocmask(SIG_SETMASK, sigMask, &oldSigMask);
if (!kernel) {
Thread *thread = thread_get_current_thread();
thread->old_sig_block_mask = oldSigMask;
thread->flags |= THREAD_FLAGS_OLD_SIGMASK;
}
}
// wait for something to happen
status = acquire_sem_etc(sync->sem, 1,
B_CAN_INTERRUPT | (timeout >= 0 ? B_ABSOLUTE_TIMEOUT : 0), timeout);
// restore the old signal mask
if (sigMask != NULL && kernel)
if (sigMask != NULL)
sigprocmask(SIG_SETMASK, &oldSigMask, NULL);
PRINT(("common_select(): acquire_sem_etc() returned: %lx\n", status));
@@ -933,6 +927,8 @@ _user_select(int numFDs, fd_set *userReadSet, fd_set *userWriteSet,
sigset_t sigMask;
int result;
syscall_restart_handle_timeout_pre(timeout);
if (numFDs < 0 || !check_max_fds(numFDs))
return B_BAD_VALUE;
@@ -998,7 +994,8 @@ _user_select(int numFDs, fd_set *userReadSet, fd_set *userWriteSet,
|| (errorSet != NULL
&& user_memcpy(userErrorSet, errorSet, bytes) < B_OK))) {
result = B_BAD_ADDRESS;
}
} else
syscall_restart_handle_timeout_post(result, timeout);
err:
free(readSet);
@@ -1016,12 +1013,16 @@ _user_poll(struct pollfd *userfds, int numFDs, bigtime_t timeout)
size_t bytes;
int result;
syscall_restart_handle_timeout_pre(timeout);
if (numFDs < 0)
return B_BAD_VALUE;
if (numFDs == 0) {
// special case: no FDs
return common_poll(NULL, 0, timeout, false);
result = common_poll(NULL, 0, timeout, false);
return result < 0
? syscall_restart_handle_timeout_post(result, timeout) : result;
}
if (!check_max_fds(numFDs))
@@ -1046,7 +1047,9 @@ _user_poll(struct pollfd *userfds, int numFDs, bigtime_t timeout)
if (numFDs > 0 && user_memcpy(userfds, fds, bytes) != 0) {
if (result >= 0)
result = B_BAD_ADDRESS;
}
} else
syscall_restart_handle_timeout_post(result, timeout);
err:
free(fds);