From 50039b135f322d70076ea03932f60080ae4b286b Mon Sep 17 00:00:00 2001
From: Martin Molnar <molnam1@fel.cvut.cz>
Date: Wed, 9 Jul 2008 02:20:02 +0200
Subject: [PATCH] Added frsh_resource.c

---
 frsh/frsh_contract.h |  9 +++++++--
 frsh/frsh_resource.c | 20 ++++++++++++++++++++
 frsh/frsh_resource.h | 21 +++++++++++----------
 3 files changed, 38 insertions(+), 12 deletions(-)
 create mode 100644 frsh/frsh_resource.c

diff --git a/frsh/frsh_contract.h b/frsh/frsh_contract.h
index 0483dd2..860abd6 100644
--- a/frsh/frsh_contract.h
+++ b/frsh/frsh_contract.h
@@ -11,17 +11,22 @@ typedef struct frsh_contract_params {
 	frsh_period_t	period;
 } frsh_contract_params_t;
 
+typedef frsh_contract{
+	frsh_resource_type  type;
+	frsh_vres_d_t	vresd;
+	frsh_contract_status_t status;
+} frsh_contract_t;
+
 typedef frsh_contract_t* frsh_contract_d_t;
 
 typedef struct frsh_contract_ops {
-	/*frsh_contract_d_t* (*create)(frsh_resource_t* resource);*/
 	int (*reserve)(frsh_contract_params_t* params, 
 				frsh_contract_d_t* contractdp);
 	int (*commit)(frsh_contract_d_t contractd);
 	/* just for compability, combination of previous functions */
 	int (*negotiate)(frsh_contract_params_t* params, 
 				frsh_contract_d_t* contractdp);
-	int (*create_vres)(frsh_contract_d_t contractd, frsh_vresd_t* vresdp);
+	int (*get_vres)(frsh_contract_d_t contractd, frsh_vres_d_t* vresdp);
 }
 
 #endif /* FRSH_CONTRACT_H */
diff --git a/frsh/frsh_resource.c b/frsh/frsh_resource.c
new file mode 100644
index 0000000..92e7c66
--- /dev/null
+++ b/frsh/frsh_resource.c
@@ -0,0 +1,20 @@
+#include "frsh_resource.h"
+
+frsh_resource_t* frsh_resources[FRSH_RESOURCE_NUM+1];
+
+int frsh_resource_register(frsh_resource_type_t type, frsh_resource_t* resource)
+{
+	if (frsh_resources[type]) {
+		errno = EPERM;
+		return (-errno);
+	} else
+		frsh_resources[type] = resource;
+
+	return 0;
+}
+
+int frsh_resource_unregister(frsh_resource_type_t type)
+{
+	frsh_resources[type] = NULL;
+	return 0;
+}
diff --git a/frsh/frsh_resource.h b/frsh/frsh_resource.h
index b2ea10d..55c7b00 100644
--- a/frsh/frsh_resource.h
+++ b/frsh/frsh_resource.h
@@ -9,20 +9,21 @@
 #ifndef _FRSH_RESOURCE_H
 #define _FRSH_RESOURCE_H
 
-typedef struct frsh_resource_id {
-	unsigned int type;  /* cpu, wlan */
-	unsigned int unit;  /* 0, 1, 2 */
-} frsh_resource_id_t; 
+#define FRSH_RESOURCE_NUM 5
+
+typedef enum {
+	FRSH_CPU 	= 1,
+	FRSH_MEMORY 	= 2,
+	FRSH_DISK	= 3,
+	FRSH_CAN	= 4,
+	FRSH_WIFI	= 5,
+} frsh_resource_type;
 
 typedef struct frsh_resource {
- 	frsh_resource_id_t 	id;
  	frsh_contract_ops_t	*contract_ops;
 } frsh_resource_t;
 
-/* Resource descriptor 
- * ( Yes , we could just use frsh_resource_t* but in case of changes 
- * in API ..) 
- **/
-typedef frsh_resource_t* frsh_resource_d_t;
+int frsh_resource_register(frsh_resource_type_t type, frsh_resource_t* resource);
+int frsh_resource_unregister(frsh_resource_type_t type);
 
 #endif /* _FRSH_RESOURCE_H */
-- 
2.39.2