Changeset c8afd5a in mainline for uspace/lib/c/generic/async/server.c

Timestamp:

2018-05-31T16:22:15Z (6 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

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

Children:

04051b8e

Parents:

49a796f1

Message:

Have async_poke() check whether the poke is necessary.

This was originally done in fibril_synch.c and the previous commit accidentally
removed it.

File:

• uspace/lib/c/generic/async/server.c (modified) (2 diffs)

uspace/lib/c/generic/async/server.c

@@ -125 +125 @@
 
 /** Number of threads waiting for IPC in the kernel. */
-atomic_t threads_in_ipc_wait = { 0 };
+static atomic_t threads_in_ipc_wait = { 0 };
 
 /** Call data */
@@ -1273 +1273 @@
 void async_poke(void)
 {
-        ipc_poke();
+        if (atomic_get(&threads_in_ipc_wait) > 0)
+                ipc_poke();
 }