X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fmessages.c;h=1391d9914c3e8fb6158b725c4ed8d8a87b2cce1d;hb=7009aab6b04807e085c7e218965e1e8000a2bbbe;hp=ce23d6b14f043a90483d229a379e9a2b5be6f5d9;hpb=abe6c6cf7fac39102e20cd28687b24c67f4952f8;p=tpg%2Facess2.git diff --git a/Kernel/messages.c b/Kernel/messages.c index ce23d6b1..1391d991 100644 --- a/Kernel/messages.c +++ b/Kernel/messages.c @@ -1,16 +1,16 @@ /* - * AcessOS Microkernel Version + * Acess2 Kernel + * - By John Hodge (thePowersGang) + * * messages.c + * - IPC Messages */ -#define DEBUG 1 +#define DEBUG 0 #include #include #include #include -// === IMPORTS === -extern tShortSpinlock glThreadListLock; - // === CODE === /** * \fn int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data) @@ -65,9 +65,8 @@ int Proc_SendMessage(Uint *Err, Uint Dest, int Length, void *Data) SHORTREL(&thread->IsLocked); - SHORTLOCK(&glThreadListLock); + LOG("Waking %p (%i %s)", thread, thread->TID, thread->ThreadName); Threads_Wake( thread ); - SHORTREL(&glThreadListLock); LEAVE_RET('i', 0); } @@ -84,21 +83,27 @@ int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer) int ret; void *tmp; tThread *cur = Proc_GetCurThread(); + + ENTER("pSource pBuffer", Source, Buffer); // Check if queue has any items if(!cur->Messages) { + LEAVE('i', 0); return 0; } SHORTLOCK( &cur->IsLocked ); - if(Source) + if(Source) { *Source = cur->Messages->Source; + LOG("*Source = %i", *Source); + } // Get message length if( !Buffer ) { ret = cur->Messages->Length; SHORTREL( &cur->IsLocked ); + LEAVE('i', ret); return ret; } @@ -107,10 +112,13 @@ int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer) { if( !CheckMem( Buffer, cur->Messages->Length ) ) { + LOG("Invalid buffer"); *Err = -EINVAL; SHORTREL( &cur->IsLocked ); + LEAVE('i', -1); return -1; } + LOG("Copied to buffer"); memcpy(Buffer, cur->Messages->Data, cur->Messages->Length); } ret = cur->Messages->Length; @@ -118,10 +126,12 @@ int Proc_GetMessage(Uint *Err, Uint *Source, void *Buffer) // Remove from list tmp = cur->Messages; cur->Messages = cur->Messages->Next; + if(cur->Messages == NULL) cur->LastMessage = NULL; SHORTREL( &cur->IsLocked ); free(tmp); // Free outside of lock - + + LEAVE('i', ret); return ret; }