[Cluster-devel] cluster/rgmanager/include depends.h

[lhh at sourceware.org]

CVSROOT:	/cvs/cluster
Module name:	cluster
Changes by:	lhh at sourceware.org	2007-02-21 14:20:04

Added files:
	rgmanager/include: depends.h 

Log message:
	Check in missing header

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/rgmanager/include/depends.h.diff?cvsroot=cluster&r1=NONE&r2=1.1

/cvs/cluster/cluster/rgmanager/include/depends.h,v  -->  standard output
revision 1.1
--- cluster/rgmanager/include/depends.h
+++ -	2007-02-21 14:20:04.535352000 +0000
@@ -0,0 +1,128 @@
+#ifndef _DEPENDS_H
+#define _DEPENDS_H
+
+#include <resgroup.h>
+#include <list.h>
+
+typedef enum {
+	DEP_COLO_UNSPEC		= 0,
+	DEP_COLO_ALWAYS		= 1,
+	DEP_COLO_NEVER		= 2
+} dep_colo_t;
+
+typedef enum {
+	DEP_REQ_UNSPEC		= 0,
+	DEP_REQ_START		= 1,
+	DEP_REQ_ALWAYS		= 2
+} dep_req_t;
+
+typedef enum {
+	DEP_FLAG_CYCLIC		= 0x1,
+	DEP_FLAG_TERMINAL	= 0x2,
+	DEP_FLAG_IMPOSSIBLE	= 0x4,
+	DEP_FLAG_IMPLIED	= 0x8,
+	DEP_FLAG_NEVER		= 0x10,
+	DEP_FLAG_ALWAYS		= 0x20
+} dep_flag_t;
+
+typedef enum {
+	RS_ILLEGAL_NODE	= 0x1,
+	RS_DEAD_NODE	= 0x2,
+	RS_BEEN_STARTED	= 0x4,
+	RS_BEEN_STOPPED = 0x8,
+	RS_IMMUTABLE    = 0x10,
+	RS_ORDERED	= 0x20,
+	RS_FAILBACK	= 0x40,
+	RS_BROKEN	= 0x80
+} rs_flag_t;
+
+typedef enum {
+	DN_BROKEN_COLO	= 0x1,
+	DN_BROKEN_NONCOLO	= 0x2,
+	DN_BROKEN_REQ	= 0x4
+} dep_node_flag_t;
+
+typedef struct _dn_node {
+	list_head();
+	char		*dn_name;
+	struct _dep	*dn_ptr;
+	dep_colo_t	dn_colo;
+	dep_req_t	dn_req;
+	int		dn_traversed;
+	dep_node_flag_t	dn_flags;
+} dep_node_t;
+
+typedef struct _dep {
+	list_head();
+	char *d_name;
+	dep_node_t *d_nodes;
+	dep_flag_t d_flags;
+	int d_hits;
+	int d_deps;
+} dep_t;
+
+
+typedef struct _res_state {
+	rg_state_t	rs_status;
+	int 		*rs_allowed;
+	int		rs_allowed_len;
+	rs_flag_t	rs_flags;
+} dep_rs_t;
+
+
+/* List of operations to take current state -> ideal state */
+typedef struct _dep_op {
+	list_head();
+	struct _dep_op	*do_child;
+	char		do_res[64];	
+	int		do_op;
+	int		do_nodeid;
+	int		do_iter;
+} dep_op_t;
+	
+
+
+int construct_depends(int ccsfd, dep_t **deps);
+void deconstruct_depends(dep_t **deps);
+void print_depends(FILE *fp, dep_t **deps);
+void print_depends_dot(FILE *fp, dep_t **deps);
+
+/* Check cluster state given:
+ * all resource (service) states,
+ * all available nodes to each resource,
+ * all online nodes.
+ * 
+ * Returns # of errors (negative), # of stopped services (positive), or
+ * 0 if the cluster state is ideal.
+ * 
+ * Note: Call dep_reset() when you're done to clear error flags in the
+ * graph.
+ */
+int dep_check(dep_t **deps, dep_rs_t *states, int slen,
+		    int *nodes, int nlen);
+
+/* Clear error flags in the graph + states */
+void dep_reset(dep_t **deps, dep_rs_t *rs, int slen);
+
+/* Print out our errors */
+void dep_print_errors(dep_t **deps, dep_rs_t *rs, int slen);
+
+dep_rs_t * dep_rstate_alloc(resource_node_t **restree, fod_t **domains,
+			     int *nodes, int nlen, int *rs_cnt);
+void dep_rstate_free(dep_rs_t *states, int cnt);
+
+/* Dump graphviz-compatible output to fp (includes errors in graph */
+int dep_cluster_state_dot(FILE *fp, dep_t **deps, dep_rs_t *states, int slen,
+			  int *nodes, int nlen);
+int dep_cluster_state(FILE *fp, dep_t **deps, dep_rs_t *states, int slen,
+		      int *nodes, int nlen);
+
+/* Calculate transition list */
+int dep_calc_trans(dep_t **deps, dep_rs_t *states, int slen,
+		   int *nodes, int nlen, dep_op_t **op_list, int *iter);
+
+int dep_copy_tree(dep_t **dest, dep_t **src);
+
+
+
+#endif