Changeset 057d21a in mainline

Timestamp:

2009-08-21T07:22:38Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

8619f25

Parents:

6c4a56f

Message:

Add SYS_IPC_POKE syscall.

Files:

• kernel/generic/include/ipc/sysipc.h (modified) (1 diff)
• kernel/generic/include/syscall/syscall.h (modified) (1 diff)
• kernel/generic/src/ipc/sysipc.c (modified) (2 diffs)
• kernel/generic/src/syscall/syscall.c (modified) (1 diff)
• uspace/lib/libc/generic/ipc.c (modified) (1 diff)
• uspace/lib/libc/include/ipc/ipc.h (modified) (1 diff)

kernel/generic/include/ipc/sysipc.h

@@ -52 +52 @@
 unative_t sys_ipc_wait_for_call(ipc_data_t *calldata, uint32_t usec,
     int nonblocking);
+unative_t sys_ipc_poke(void);
 unative_t sys_ipc_forward_fast(unative_t callid, unative_t phoneid,
     unative_t method, unative_t arg1, unative_t arg2, int mode);

kernel/generic/include/syscall/syscall.h

@@ -66 +66 @@
         SYS_IPC_FORWARD_SLOW,
         SYS_IPC_WAIT,
+        SYS_IPC_POKE,
         SYS_IPC_HANGUP,
         SYS_IPC_REGISTER_IRQ,

kernel/generic/src/ipc/sysipc.c

@@ -44 +44 @@
 #include <ipc/ipcrsc.h>
 #include <ipc/kbox.h>
+#include <synch/waitq.h>
 #include <udebug/udebug_ipc.h>
 #include <arch/interrupt.h>
@@ -1051 +1052 @@
 }
 
+/** Interrupt one thread from sys_ipc_wait_for_call(). */
+unative_t sys_ipc_poke(void)
+{
+        waitq_unsleep(&TASK->answerbox.wq);     
+        return EOK;
+}
+
 /** Connect an IRQ handler to a task.
  *

kernel/generic/src/syscall/syscall.c

@@ -137 +137 @@
         (syshandler_t) sys_ipc_forward_slow,
         (syshandler_t) sys_ipc_wait_for_call,
+        (syshandler_t) sys_ipc_poke,
         (syshandler_t) sys_ipc_hangup,
         (syshandler_t) sys_ipc_register_irq,

uspace/lib/libc/generic/ipc.c

@@ -565 +565 @@
 }
 
+/** Interrupt one thread of this task from waiting for IPC. */
+void ipc_poke(void)
+{
+        __SYSCALL0(SYS_IPC_POKE);
+}
+
 /** Ask destination to do a callback connection.
  *

uspace/lib/libc/include/ipc/ipc.h

@@ -192 +192 @@
 extern ipc_callid_t ipc_wait_cycle(ipc_call_t *, uint32_t, int);
 extern ipc_callid_t ipc_wait_for_call_timeout(ipc_call_t *, uint32_t);
+extern void ipc_poke(void);
 
 static inline ipc_callid_t ipc_wait_for_call(ipc_call_t *data)