Changeset ab6edb6 in mainline for uspace/lib/c/generic/async/client.c

Timestamp:

2018-06-26T17:34:48Z (6 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e768aea

Parents:

b59318e

git-author:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-06-25 19:28:19)

git-committer:

Jiří Zárevúcky <jiri.zarevucky@…> (2018-06-26 17:34:48)

Message:

Simplify the interaction between async_futex and fibril_switch().

File:

• uspace/lib/c/generic/async/client.c (modified) (3 diffs)

uspace/lib/c/generic/async/client.c

@@ -372 +372 @@
 
         /* Leave the async_futex locked when entering this function */
-        fibril_switch(FIBRIL_TO_MANAGER);
-
-        /* Futex is up automatically after fibril_switch */
+        fibril_switch(FIBRIL_FROM_BLOCKED);
+        futex_unlock(&async_futex);
 
 done:
@@ -445 +444 @@
 
         /* Leave the async_futex locked when entering this function */
-        fibril_switch(FIBRIL_TO_MANAGER);
-
-        /* Futex is up automatically after fibril_switch */
+        fibril_switch(FIBRIL_FROM_BLOCKED);
+        futex_unlock(&async_futex);
 
         if (!msg->done)
@@ -511 +509 @@
 
         /* Leave the async_futex locked when entering this function */
-        fibril_switch(FIBRIL_TO_MANAGER);
-
-        /* Futex is up automatically after fibril_switch() */
+        fibril_switch(FIBRIL_FROM_BLOCKED);
+        futex_unlock(&async_futex);
 }