/* zentific-poll: statistics collection daemon for Zentific
 * Copyright (C) 2007, 2008
 *      Steven Maresca, Justin Demaris,
 *      and Zentific LLC
 *
 * All rights reserved.
 * Use is subject to license terms.
 *
 * Please visit http://zentific.com for news and updates
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 */

//some duplication here, will be cleaned

struct xenstat_handle {
        int xc_handle;
        struct xs_handle *xshandle; /* xenstore handle */
        int page_size;
        FILE *procnetdev;
        DIR *sysfsvbd;
        char xen_version[VERSION_SIZE]; /* xen version running on this node */
};

struct xenstat_domain {
        unsigned int id;
        char *name;
        unsigned int state;
        unsigned long long cpu_ns;      /* CPU time in nanoseconds */
        unsigned int num_vcpus;         /* No. vcpus configured for domain */
        xenstat_vcpu *vcpus;            /* Array of length num_vcpus */
        unsigned long long cur_mem;     /* Current memory reservation */
        unsigned long long max_mem;     /* Total memory allowed */
        unsigned int ssid;              /* security id ??? used for ACM stuff? */
        unsigned int num_networks;
        xenstat_network *networks;      /* Array of length num_networks */
        unsigned int num_vbds;
	//void *vbds;
        xenstat_vbd *vbds;
};

struct xenstat_network {
        unsigned int id;
        /* Received */
        unsigned long long rbytes;
        unsigned long long rpackets;
        unsigned long long rerrs;
        unsigned long long rdrop;
        /* Transmitted */
        unsigned long long tbytes;
        unsigned long long tpackets;
        unsigned long long terrs;
        unsigned long long tdrop;
};

//NOTE: back_type is not present in the vanilla xenstat 
// distributed with 3.0.4, but works without issue
struct xenstat_vbd {
	unsigned int back_type;
       	unsigned int dev;
       	unsigned long long oo_reqs;
       	unsigned long long rd_reqs;
       	unsigned long long wr_reqs;
};

typedef struct host {
        long num_cpus;
        long cpu_mhz;
        int  cores_per_socket;
        int  threads_per_core;
        int  sockets_per_node;
        int  num_cpu_nodes;
        long tot_mem;
        long free_mem;
       	double cpu_pct;
	char *hwuuid;
        char hostname[HOST_NAME_MAX+1];
        char address[15+1]; //FIXME is this appropriate xxx.xxx.xxx.xxx
        char domainname[HOST_NAME_MAX+1];
        char *kernel_ver;
        char *os_ver;
        char *arch;
	char *default_vnc_passwd;
        const char *xen_ver;

} host;

typedef struct vbd {
        char *internal_dev;
        char *external_dev;
        char *mode;
        char *type;
	int size_sector;
	int num_sectors;
        unsigned int dev;
        unsigned long long oo_reqs;
        unsigned long long rd_reqs;
        unsigned long long wr_reqs;
        char *mapped_dev;
	int block_size;
	int start_sector;
	char *partition_type;
} vbd;

typedef struct vif {
 	char *vifname;
        char *bridge;
        char *script;
        char *mac;
        char *type;

        unsigned long long rbytes;
        unsigned long long rpackets;
        unsigned long long rerrs;
        unsigned long long rdrop;
        unsigned long long tbytes;
        unsigned long long tpackets;
        unsigned long long terrs;
        unsigned long long tdrop;
} vif;

typedef struct guest {
        char *uuid;
        char *puuid;
        char *name;
        char *ostype;
        char *vmtype;

        char *vnc_port;
        char *vnc_passwd;

	char *kernel;
	char *ramdisk;
	char *cmdline;

	char *on_reboot;
	char *on_crash;
	char *on_poweroff;

        char *state;
        int uptime;
        unsigned int domid;
        unsigned int vcpus;
        unsigned long long mem;
        unsigned long long maxmem;
       	double cpu_pct;
        unsigned long long cputime;
        unsigned long long txbw;
        unsigned long long rxbw;
        unsigned int numnets;
        unsigned int numvbds;

        vbd *vbds;
        vif *vifs;
} guest;