JehanneOS/jehanne
1
0
Fork 0
Code Issues Pull Requests Projects Releases Activity

kernel: generalize awake

Browse Source 
Awake can now interrupt several blocking syscalls (even
during note handling).

Among others, it can interrupt await, pread and pwrite.

It cannot interrupt several others for different reasons:

- awake cannot be interrupted by awake;
- syscalls like remove and create can be used for kernel comunication
  and it would be hard to know if the effect occurred in the
  receiving fs if they were interrupted;
- other syscalls do not need awake since they just provide access
  to kernel infos (eg seek or fd2path)

NOTE: awakes registered before a note cannot occur during the note
handling and will be deferred till the next call to noted.
This commit is contained in:
Giacomo Tesio
2017-05-15 00:05:59 +02:00
parent 79f8204766
commit f9b2e9aba4
9 changed files with 132 additions and 115 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
qa/kern/nested_note.runner
View File

@@ -21,8 +21,8 @@ echo -n stop > /proc/$testpid/note
wait $testpid
if ( cat $test_output | grep 'waiting after first.........................................................................................................................................................................................................' > /dev/null ) {
if ( cat $test_output | grep 'waiting after second.........................................................................................................................................................................................................' > /dev/null ) {
if ( cat $test_output | grep 'waiting after first.......................' > /dev/null ) {
if ( cat $test_output | grep 'waiting after second.......................' > /dev/null ) {
if ( cat $test_output | grep 'PASS' > /dev/null ) {
rm $test_output
echo PASS