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Usermode/AxWin3 - Debugging IPC
[tpg/acess2.git]
/
Kernel
/
messages.c
diff --git
a/Kernel/messages.c
b/Kernel/messages.c
index
aaedf5c
..
b70e078
100644
(file)
--- a/
Kernel/messages.c
+++ b/
Kernel/messages.c
@@
-2,10
+2,15
@@
* AcessOS Microkernel Version
* messages.c
*/
* AcessOS Microkernel Version
* messages.c
*/
+#define DEBUG 1
#include <acess.h>
#include <acess.h>
-#include <proc.h>
+#include <threads.h>
+#include <threads_int.h>
#include <errno.h>
#include <errno.h>
+// === IMPORTS ===
+extern tShortSpinlock glThreadListLock;
+
// === CODE ===
/**
* \fn int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data)
// === CODE ===
/**
* \fn int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data)
@@
-20,24
+25,27
@@
int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data)
tThread *thread;
tMsg *msg;
tThread *thread;
tMsg *msg;
-
Log("Proc_SendMessage: (Err=%p, Dest=%i, Length=%i, Data=%p)
", Err, Dest, Length, Data);
+
ENTER("pErr iDest iLength pData
", Err, Dest, Length, Data);
if(Length <= 0 || !Data) {
*Err = -EINVAL;
if(Length <= 0 || !Data) {
*Err = -EINVAL;
-
return -1
;
+
LEAVE_RET('i', -1)
;
}
// Get thread
thread = Threads_GetThread( Dest );
// Error check
}
// Get thread
thread = Threads_GetThread( Dest );
// Error check
- if(!thread)
{ return -1; }
+ if(!thread)
LEAVE_RET('i', -1);
// Get Spinlock
// Get Spinlock
- LOCK( &thread->IsLocked );
+
SHORT
LOCK( &thread->IsLocked );
// Check if thread is still alive
// Check if thread is still alive
- if(thread->Status == THREAD_STAT_DEAD) return -1;
+ if(thread->Status == THREAD_STAT_DEAD) {
+ SHORTREL( &thread->IsLocked );
+ LEAVE_RET('i', -1);
+ }
// Create message
msg = malloc( sizeof(tMsg)+Length );
// Create message
msg = malloc( sizeof(tMsg)+Length );
@@
-55,11
+63,14
@@
int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data)
thread->LastMessage = msg;
}
thread->LastMessage = msg;
}
-
RELEASE
(&thread->IsLocked);
+
SHORTREL
(&thread->IsLocked);
+ SHORTLOCK(&glThreadListLock);
+ LOG("Waking %p (%i %s)", thread, thread->TID, thread->ThreadName);
Threads_Wake( thread );
Threads_Wake( thread );
+ SHORTREL(&glThreadListLock);
-
return 0
;
+
LEAVE_RET('i', 0)
;
}
/**
}
/**
@@
-72,7
+83,7
@@
int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data)
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
{
int ret;
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
{
int ret;
- void *tmp;
+ void
*tmp;
tThread *cur = Proc_GetCurThread();
// Check if queue has any items
tThread *cur = Proc_GetCurThread();
// Check if queue has any items
@@
-80,7
+91,7
@@
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
return 0;
}
return 0;
}
- LOCK( &cur->IsLocked );
+
SHORT
LOCK( &cur->IsLocked );
if(Source)
*Source = cur->Messages->Source;
if(Source)
*Source = cur->Messages->Source;
@@
-88,7
+99,7
@@
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
// Get message length
if( !Buffer ) {
ret = cur->Messages->Length;
// Get message length
if( !Buffer ) {
ret = cur->Messages->Length;
-
RELEASE
( &cur->IsLocked );
+
SHORTREL
( &cur->IsLocked );
return ret;
}
return ret;
}
@@
-98,7
+109,7
@@
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
if( !CheckMem( Buffer, cur->Messages->Length ) )
{
*Err = -EINVAL;
if( !CheckMem( Buffer, cur->Messages->Length ) )
{
*Err = -EINVAL;
-
RELEASE
( &cur->IsLocked );
+
SHORTREL
( &cur->IsLocked );
return -1;
}
memcpy(Buffer, cur->Messages->Data, cur->Messages->Length);
return -1;
}
memcpy(Buffer, cur->Messages->Data, cur->Messages->Length);
@@
-106,11
+117,12
@@
int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer)
ret = cur->Messages->Length;
// Remove from list
ret = cur->Messages->Length;
// Remove from list
- tmp = cur->Messages->Next;
- free( (void*)cur->Messages );
- cur->Messages = tmp;
+ tmp = cur->Messages;
+ cur->Messages = cur->Messages->Next;
+
+ SHORTREL( &cur->IsLocked );
- RELEASE( &cur->IsLocked );
+ free(tmp); // Free outside of lock
return ret;
}
return ret;
}
UCC
git Repository :: git.ucc.asn.au