Changeset 0b8fad2 in mainline for uspace/lib/c/generic/private/futex.h

Timestamp:

2018-11-11T15:47:39Z (5 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6874bd2

Parents:

25f6bddb

git-author:

Jakub Jermar <jakub@…> (2018-11-11 11:08:58)

git-committer:

Jakub Jermar <jakub@…> (2018-11-11 15:47:39)

Message:

Make user waitq more generic

By allowing SYS_WAITQ_SLEEP to specify flags, the implementation needn't
hardcode the use of SYNCH_FLAGS_FUTEX, resulting in a more generic
synchronization primitive usable from userspace.

File:

• uspace/lib/c/generic/private/futex.h (modified) (2 diffs)

uspace/lib/c/generic/private/futex.h

@@ -43 +43 @@
 #include <fibril.h>
 #include <abi/cap.h>
+#include <abi/synch.h>
 
 typedef struct futex {
@@ -147 +148 @@
         }
 
-        return __SYSCALL2(SYS_WAITQ_SLEEP, (sysarg_t) futex->whandle,
-            (sysarg_t) timeout);
+        return __SYSCALL3(SYS_WAITQ_SLEEP, (sysarg_t) futex->whandle,
+            (sysarg_t) timeout, (sysarg_t) SYNCH_FLAGS_FUTEX);
 }