source/idar/idar.c

/*
 * i-scream central monitoring system
 * http://www.i-scream.org.uk
 * Copyright (C) 2000-2002 i-scream
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <stdlib.h>
#include <ukcprog.h>

#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include "genmergesort.h"

#ifdef HAVE_NCURSES_H
#include <ncurses.h>
#else
#include <curses.h>
#endif

struct host_line_t{
        char *hostname;
        int line;

        struct host_line_t *next;
};
typedef struct host_line_t host_line_list_t;

struct diskio_data_t{
        char *name;

        long long read;
        long long write;
        
        struct diskio_data_t *next;
};
typedef struct diskio_data_t diskio_data_list_t;

struct network_data_t{
        char *name;

        long long rx;
        long long tx;
        
        struct network_data_t *next;
};
typedef struct network_data_t network_data_list_t;

/*
struct disk_data_t{
        char *name;
        char *mount_pnt;

        long long total_space;
        long long total_used;
        long long total_avail;
        // Other data we are less intrested in are not stored
        
        struct disk_data_t *next;
};
typedef struct disk_data_t disk_data_list_t;
*/
#define MAXHOSTNAMESIZE 10
struct machine_data_t{

        char *name;

        char sysname[MAXHOSTNAMESIZE+1];

        double cpu_user;
        double cpu_idle;
        double cpu_iowait;
        double cpu_kernel;
        double cpu_swap; 
        double cpu_used; /* 100 - idle */

        long long memory_total;
        long long memory_free;
        long long memory_used;
        double memory_used_pecent;
        
        long long swap_total;
        long long swap_free;
        long long swap_used;
        double swap_used_pecent;

        int pages_in;
        int pages_out;

        double load_1;
        double load_5;
        double load_15;

        int processes_total;
        int processes_sleeping;
        int processes_cpu;
        int processes_zombie;
        int processes_stopped;

        network_data_list_t *network_data_list;
        long long network_io_total_tx;
        long long network_io_total_rx;

        diskio_data_list_t *diskio_data_list;
        long long disk_io_total_write;
        long long disk_io_total_read;

        /* Maybe in the future */
        /*
        disk_data_list_t disk_data_list;
        double disk_total_used;
        */

        struct machine_data_t *next;
};

typedef struct machine_data_t machine_data_list_t;

typedef struct{
        int cpu_user;
        int cpu_idle;
        int cpu_iowait;
        int cpu_kernel;
        int cpu_swap;
        int cpu_used; 

        int memory_total;
        int memory_free;
        int memory_used;
        int memory_used_pecent;

        int swap_total;
        int swap_free;
        int swap_used;
        int swap_used_pecent;

        int load_1;
        int load_5;
        int load_15;

        int pages_in;
        int pages_out;

        int processes_total;
        int processes_sleeping;
        int processes_cpu;
        int processes_zombie;
        int processes_stopped;

        int network_io_total_tx;
        int network_io_total_rx;
        int network_all_stats;

        int disk_io_total_write;
        int disk_io_total_read;
        int disk_io_all_stats;

        int disk_total_used;
        int disk_all_stats; 
}display_config_t;

GENERIC_MERGE_SORT(static, sort_machine_stats, machine_data_list_t, next)

#define MKCMP(x) int cmp_##x(machine_data_list_t *a, machine_data_list_t *b){return ((a->x) == (b->x)? 0 : (((a->x) > (b->x))? -1 : 1));}


int (*sortby_ptr)(machine_data_list_t *a, machine_data_list_t *b);

MKCMP(cpu_used)
MKCMP(load_1)
MKCMP(network_io_total_tx)
MKCMP(network_io_total_rx)
MKCMP(disk_io_total_write)
MKCMP(disk_io_total_read)
MKCMP(memory_used_pecent)
MKCMP(swap_used_pecent)

/*
int cmp_cpu(machine_data_list_t *a, machine_data_list_t *b){

        if(a->cpu_used == b->cpu_used){
                if(a->load_1 == b->load_1) return 0;
                if(a->load_1 > b->load_1){
                        return -1;
                }else{
                        return 1;
                }
        }

        if((a->cpu_used) > (b->cpu_used)){
                return -1;
        }else{
                return 1;
        }
}
*/
        
FILE *create_tcp_connection(char *hostname, int port){
        int sock;
        struct sockaddr_in addr;
        struct in_addr haddr;
        FILE *f;

        if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
                return NULL;
        }

        if((get_host_addr(hostname, &haddr))!=0){
                close(sock);
                return NULL;
        }

        memset(&addr, 0, sizeof(addr));
        addr.sin_family = AF_INET;
        memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
        addr.sin_port = htons(port);

        if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
                close(sock);
                return NULL;
        }

        if((f=fdopen(sock, "r+"))==NULL){
                close(sock);
                return NULL;
        }

        return f;
}

int tcp_comm(FILE *f, char *send, char **response, char *expected){

        if(send!=NULL){
                fprintf(f, "%s\n", send);
        }
        fflush(f);
        *response=fpgetline(f);
        fseek(f, 0, SEEK_CUR);

        if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;

        if(expected==NULL) return 0;

        if((strcmp(expected, *response))==0) return 0;

        return -1;
}

/* Takes a xml char * and a machine_data_list_t. This will parse
 * the xml and put it into the correct entry of the machine_data
 * linked list. This will return the number of entries in the linked
 * list, or -1 on a error.
 */
int parse_xml(char *xml, machine_data_list_t **md){
        xmlDocPtr doc;
        xmlNodePtr cur;
        xmlNodePtr ele;
        xmlAttr *list;

        static int num_hosts=0;

        machine_data_list_t *machine_data_list=*md;

        int found_host=0;

        char *hostname=NULL;
        network_data_list_t *network_data_list=NULL;
        network_data_list_t *ndl_ptr=NULL;
        diskio_data_list_t *diskio_data_list=NULL;
        diskio_data_list_t *didl_ptr=NULL;
        char *tmp;

        doc=xmlParseDoc(xml);
        if(doc==NULL) return -1;
        
        cur = xmlDocGetRootElement(doc);
        if(cur==NULL){
                xmlFreeDoc(doc);
                return -1;
        }

                
        /* Get the hostname */
        list=cur->properties;
        while(list!=NULL){
                if((xmlStrcmp(list->name, (const xmlChar *) "machine_name"))==0){
                        hostname = xmlNodeGetContent(list->children);
                        if(hostname==NULL){
                                return -1;
                        }       
                }
                list=list->next;
        }
        if(hostname==NULL){
                return -1;
        }

        /* Get machine_data for host.. Or create if it doesn't have one */
        while(machine_data_list!=NULL){
                if((strncmp(machine_data_list->name, hostname, strlen(hostname)))==0){
                        found_host=1;
                        break;
                }
                machine_data_list=machine_data_list->next;
        }

        if(!found_host){
                /* We didn't find this host, but we should be at the end of the list */
                machine_data_list=malloc(sizeof(machine_data_list_t));
                if(machine_data_list==NULL) return -1;
                machine_data_list->next=(*md);
                machine_data_list->name=hostname;
                machine_data_list->network_data_list=NULL;
                machine_data_list->diskio_data_list=NULL;
                *md=machine_data_list;
                num_hosts++;
        }
                
        /* Now we want to pull out the data */

        cur = cur->xmlChildrenNode;
        while(cur != NULL) {
                ele=cur->xmlChildrenNode;
                while(ele != NULL){

                        /* CPU Stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "cpu")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "user")){
                                        machine_data_list->cpu_user=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "kernel")){
                                        machine_data_list->cpu_kernel=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "idle")){
                                        machine_data_list->cpu_idle=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "iowait")){
                                        machine_data_list->cpu_iowait=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "swap")){
                                        machine_data_list->cpu_iowait=atof(tmp);
                                }
                                
                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* Memory Stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "memory")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "total")){
                                        machine_data_list->memory_total=atoll(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "free")){
                                        machine_data_list->memory_free=atoll(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "used")){
                                        machine_data_list->memory_used=atoll(tmp);
                                }

                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* Load Stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "load")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "load1")){
                                        machine_data_list->load_1=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "load5")){
                                        machine_data_list->load_5=atof(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "load15")){
                                        machine_data_list->load_15=atof(tmp);
                                }
                        
                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* swap stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "swap")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "total")){
                                        machine_data_list->swap_total=atoll(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "free")){
                                        machine_data_list->swap_free=atoll(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "used")){
                                        machine_data_list->swap_used=atoll(tmp);
                                }

                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* Process stat */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "processes")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "sleeping")){
                                        machine_data_list->processes_sleeping=atoi(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "cpu")){
                                        machine_data_list->processes_cpu=atoi(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "zombie")){
                                        machine_data_list->processes_zombie=atoi(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "total")){
                                        machine_data_list->processes_total=atoi(tmp);
                                }

                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* paging stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "pages")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "pageins")){
                                        machine_data_list->pages_in=atoi(tmp);
                                }
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "pageouts")){
                                        machine_data_list->pages_out=atoi(tmp);
                                }
                        
                                if(tmp!=NULL) xmlFree(tmp);
                        }
                        
                        /* OS stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "os")){
                                tmp=xmlNodeGetContent(ele);
                                if(!xmlStrcmp(ele->name, (const xmlChar *) "sysname")){
                                        strlcpy(machine_data_list->sysname, tmp, MAXHOSTNAMESIZE+1);
                                }
                                if(tmp!=NULL) xmlFree(tmp);
                        }

                        /* Network stats */
                        /* Needs to connect current stat to a previous one. Or create it if new */
                        /* Get name.. Walk list. If match, copy rx/tx values. Else malloc, add to list */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "net")){

                                list=ele->properties;
                                if(list==NULL) continue;
                                network_data_list=malloc(sizeof(network_data_list_t));
                                if(network_data_list==NULL) return -1;
                                while(list!=NULL){
                                        tmp=xmlNodeGetContent(list->children);
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "name")){
                                                network_data_list->name=strdup(tmp);    
                                        }
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "rx")){
                                                network_data_list->rx=atoll(tmp);
                                        }
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "tx")){
                                                network_data_list->tx=atoll(tmp);
                                        }
        
                                        xmlFree(tmp);
                                        list=list->next;
                                }
                                if(network_data_list->name==NULL) continue;
                                found_host=0;
                                ndl_ptr=machine_data_list->network_data_list;
                                while(ndl_ptr!=NULL){
                                        if(!strcmp(ndl_ptr->name, network_data_list->name)){
                                                found_host=1;
                                                break;
                                        }
                                        ndl_ptr=ndl_ptr->next;  
                                }       
                                if(found_host){
                                        ndl_ptr->rx=network_data_list->rx;
                                        ndl_ptr->tx=network_data_list->tx;
                                        free(network_data_list->name);
                                        free(network_data_list);
                                }else{
                                        network_data_list->next=machine_data_list->network_data_list;
                                        machine_data_list->network_data_list=network_data_list;
                                }
                        }       

                        /* Disk IO stats */
                        if(!xmlStrcmp(cur->name, (const xmlChar *) "diskio")){
                        
                                list=ele->properties;
                                if(list==NULL) continue;
                                diskio_data_list=malloc(sizeof(diskio_data_list_t));
                                if(diskio_data_list==NULL) return -1;
                                while(list!=NULL){
                                        tmp=xmlNodeGetContent(list->children);
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "name")){
                                                diskio_data_list->name=strdup(tmp);
                                        }
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "rbytes")){
                                                diskio_data_list->read=atoll(tmp);
                                        }
                                        if(!xmlStrcmp(list->name, (const xmlChar *) "wbytes")){
                                                diskio_data_list->write=atoll(tmp);
                                        }

                                        xmlFree(tmp);
                                        list=list->next;
                                }
                                if(diskio_data_list->name==NULL) continue;
                                found_host=0;
                                didl_ptr=machine_data_list->diskio_data_list;
                                while(didl_ptr!=NULL){
                                        if(!strcmp(didl_ptr->name, diskio_data_list->name)){
                                                found_host=1;
                                                break;
                                        }
                                        didl_ptr=didl_ptr->next;
                                }
                                if(found_host){
                                        didl_ptr->read=diskio_data_list->read;
                                        didl_ptr->write=diskio_data_list->write;
                                        free(diskio_data_list->name);
                                        free(diskio_data_list);
                                }else{
                                        diskio_data_list->next=machine_data_list->diskio_data_list;
                                        machine_data_list->diskio_data_list=diskio_data_list;
                                }
                        }

                
                        ele=ele->next;
                }
                cur=cur->next;
        }

        /* Append data we want thats not stored in the server */
        machine_data_list->cpu_used=100.00-machine_data_list->cpu_idle;
        machine_data_list->memory_used_pecent=((double)machine_data_list->memory_used / (double)machine_data_list->memory_total) * 100.00;
        machine_data_list->swap_used_pecent=((double)machine_data_list->swap_used / (double)machine_data_list->swap_total) * 100.00;

        ndl_ptr=machine_data_list->network_data_list;
        machine_data_list->network_io_total_tx=0;
        machine_data_list->network_io_total_rx=0;
        while(ndl_ptr!=NULL){
                machine_data_list->network_io_total_tx+=ndl_ptr->tx;
                machine_data_list->network_io_total_rx+=ndl_ptr->rx;
                ndl_ptr=ndl_ptr->next;
        }

        didl_ptr=machine_data_list->diskio_data_list;
        machine_data_list->disk_io_total_read=0;
        machine_data_list->disk_io_total_write=0;
        while(didl_ptr!=NULL){
                machine_data_list->disk_io_total_read+=didl_ptr->read;
                machine_data_list->disk_io_total_write+=didl_ptr->write;
                didl_ptr=didl_ptr->next;
        }

        xmlFreeDoc(doc);
        
        return num_hosts;
        
        
}

void display(machine_data_list_t *machine_data_list, display_config_t *display_config, int num_lines, int *title){
        int line_num=4;
        int x=1;

        if(*title){
//              printf("\033[2J");
        //      printf("\033[1;1HHostname     CPU   Load  Page  Page  Mem   Swap      Net      Net      Disk     Disk");
        //       printw("\033[2;1H             used%% (1m)  ins   outs  used  used      rx       tx       read     write");
                move(1,1);
                printw("%-11s", "Hostname");
                x=x+11+1;
                if(display_config->cpu_used){
                        move(1,x);
                        printw("%5s", "CPU");
                        move(2,x);
                        printw("%5s", "used%");
                        x+=6;
                }
                if(display_config->load_1){
                        move(1,x);
                        printw("%5s", "Load");
                        move(2,x);
                        printw("%5s", "(1m)");
                        x+=6;
                }
                if(display_config->pages_in){
                        move(1,x);
                        printw("%5s", "Page");
                        move(2,x);
                        printw("%5s", "ins");
                        x+=6;
                }
                if(display_config->pages_out){
                        move(1,x);
                        printw("%5s", "Page");
                        move(2,x);
                        printw("%5s", "outs");
                        x+=6;
                }
                if(display_config->memory_used_pecent){
                        move(1,x);
                        printw("%5s", "Mem");
                        move(2,x);
                        printw("%5s", "used");
                        x+=6;
                }
                if(display_config->swap_used_pecent){
                        move(1,x);
                        printw("%5s", "Swap");
                        move(2,x);
                        printw("%5s", "used");
                        x+=6;
                }
                if(display_config->network_io_total_rx){
                        move(1,x);
                        printw("%8s", "Net");
                        move(2,x);
                        printw("%8s", "rx");
                        x+=9;
                }
                if(display_config->network_io_total_tx){
                        move(1,x);
                        printw("%8s", "Net");
                        move(2,x);
                        printw("%8s", "tx");
                        x+=9;
                }
                if(display_config->disk_io_total_read){
                        move(1,x);
                        printw("%9s", "Disk");
                        move(2,x);
                        printw("%9s", "read");
                        x+=10;
                }
                if(display_config->disk_io_total_read){
                        move(1,x);
                        printw("%9s", "Disk");
                        move(2,x);
                        printw("%9s", "write");
                        x+=10;
                }
                
                *title=0;
        }

        for(;num_lines;num_lines--){    
                if(machine_data_list==NULL) break;
                move(line_num++, 1);
                printw("%-11s", machine_data_list->sysname);

                if(display_config->cpu_used)            printw(" %5.1f", machine_data_list->cpu_used);
                if(display_config->load_1)              printw(" %5.1f", machine_data_list->load_1);
                if(display_config->pages_in)            printw(" %5d", machine_data_list->pages_in);
                if(display_config->pages_out)           printw(" %5d", machine_data_list->pages_out);
                if(display_config->memory_used_pecent)  printw(" %5.1f", machine_data_list->memory_used_pecent);
                if(display_config->swap_used_pecent)    printw(" %5.1f", machine_data_list->swap_used_pecent);
                if(display_config->network_io_total_rx) printw(" %8lld", machine_data_list->network_io_total_rx);
                if(display_config->network_io_total_tx) printw(" %8lld", machine_data_list->network_io_total_tx);
                if(display_config->disk_io_total_read)  printw(" %9lld", machine_data_list->disk_io_total_read);
                if(display_config->disk_io_total_write) printw(" %9lld", machine_data_list->disk_io_total_write);

                machine_data_list=machine_data_list->next;
        }


        refresh();
        
}

int main(int argc, char **argv){
        WINDOW *window;
        fd_set infds;

        FILE *control;
        FILE *data;

        char *machine_list=NULL;
        char *response=NULL;

        char *servername;
        int server_control_port;
        int server_data_port;

        machine_data_list_t *machine_data_list=NULL;

        int num_hosts;
        int max_display=0;
        int title;

        int cmdopt;
        extern int optind;
        extern char *optarg;
        
        display_config_t display_config;
        char ch;

        int data_fileno, stdin_fileno, biggest_fileno;

        sortby_ptr=NULL;

        /* What to display defaults */
        display_config.cpu_user=0;
        display_config.cpu_idle=0;
        display_config.cpu_iowait=0;
        display_config.cpu_kernel=0;
        display_config.cpu_swap=0;
        display_config.cpu_used=1; 

        display_config.memory_total=0;
        display_config.memory_free=0;
        display_config.memory_used=0;
        display_config.memory_used_pecent=1;

        display_config.swap_total=0;
        display_config.swap_free=0;
        display_config.swap_used=0;
        display_config.swap_used_pecent=1;

        display_config.load_1=1;
        display_config.load_5=0;
        display_config.load_15=0;

        display_config.pages_in=1;
        display_config.pages_out=1;

        display_config.processes_total=0;
        display_config.processes_sleeping=0;
        display_config.processes_cpu=0;
        display_config.processes_zombie=0;
        display_config.processes_stopped=0;

        display_config.network_io_total_tx=1;
        display_config.network_io_total_rx=1;
        display_config.network_all_stats=1;

        display_config.disk_io_total_write=0;
        display_config.disk_io_total_read=0;
        display_config.disk_io_all_stats=0;

        display_config.disk_total_used=0;
        display_config.disk_all_stats=0; 

        while((cmdopt=getopt(argc, argv, "d:s:"))  != -1){
                switch(cmdopt){
                        case 'd':
                                max_display=atoi(optarg);
                        break;
                        case 's':
                                if(!strcmp(optarg, "cpu")){
                                        sortby_ptr=cmp_cpu_used;
                                }
                                if(!strcmp(optarg, "load")){
                                        sortby_ptr=cmp_load_1;
                                }
                                if(!strcmp(optarg, "mem")){
                                        sortby_ptr=cmp_memory_used_pecent;
                                }
                                if(sortby_ptr==NULL){
                                        errf("Invalid sort type");
                                        exit(1);
                                }
                        break;
                }
        }       

        if(sortby_ptr==NULL) sortby_ptr=cmp_cpu_used;

        if(argc<(optind+2)){
                printf("Usage is %s <-d lines> hostname port <machine list>\n", argv[0]);
                exit(1);
        }

        servername=argv[optind];
        server_control_port=atoi(argv[optind+1]);

        control=create_tcp_connection(servername, server_control_port);
        if(control==NULL){
                errf("Failed to connect (%m)");
        }

        if(argc==4){
                /* We've been passed a machine list */
                /* list currently needs to be ; seperated */
                machine_list=strdup(argv[3]);
        }       
        
        if((tcp_comm(control, NULL, &response, "PROTOCOL 1.1"))!=0){
                errf("Incorrect version number (%s)", response);
                exit(1);
        }

        if((tcp_comm(control, "stattop", &response, "OK"))!=0){
                errf("Unexpected response %s", response);
                exit(1);
        }

        if(machine_list!=NULL){
                if((tcp_comm(control, "SETHOSTLIST",  &response, "OK"))!=0){
                        errf("Unexpected response %s", response);
                        exit(1);
                }
                if((tcp_comm(control, machine_list, &response, "OK"))!=0){
                        errf("Unexpected response %s", response);
                        exit(1);
                }
        }

        if((tcp_comm(control, "STARTDATA", &response, NULL))!=0){
                errf("Unexpected response %s", response);
                exit(1);
        }
        
        server_data_port=atoi(response);
        if(server_data_port==0){
                errf("Unexpected response %s", response);
                exit(1);
        }

        data=create_tcp_connection(servername, server_data_port);
        if(data==NULL){
                errf("Failed to connect to host %s on port %d (%m)",servername, server_data_port);
        }

        /*      
        printf("\033[2J");
        printf("\033[1;1HHostname     CPU   Load  Page  Page  Mem   Swap      Net      Net      Disk     Disk");
        printf("\033[2;1H             used%% (1m)  ins   outs  used  used      rx       tx       read     write");      
        */

        initscr();
        nonl();
        cbreak();
        echo();
        window=newwin(0, 0, 0, 0);

        stdin_fileno=fileno(stdin);
        data_fileno=fileno(data);
        biggest_fileno=(data_fileno>stdin_fileno) ? (data_fileno+1) : (stdin_fileno+1);

        for(;;){
                FD_ZERO(&infds);
                FD_SET(stdin_fileno, &infds);
                FD_SET(data_fileno, &infds);
                select(biggest_fileno, &infds, NULL, NULL, NULL);
                
                if(FD_ISSET(stdin_fileno, &infds)){
                
                        ch=getc(stdin);

                        if(ch=='q'){
                                endwin();
                                exit(0);
                        }
                }
                if(FD_ISSET(data_fileno, &infds)){
                        response=fpgetline(data);
                        if (response==NULL){
                                errf("Failed to read data (%m)");
                                exit(1);
                        }
                }


                num_hosts=parse_xml(response, &machine_data_list);
                if(num_hosts==-1) continue;
                machine_data_list=sort_machine_stats(machine_data_list, num_hosts, sortby_ptr);
                if(max_display==0){
                        display(machine_data_list, &display_config, num_hosts, &title);
                }else{
                        display(machine_data_list, &display_config, max_display, &title);
                }

        }
        exit(0);
}
Revision:	1.6
Committed:	Sun Mar 30 17:11:26 2003 UTC (21 years, 5 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.5:	+5 -0 lines
Log Message:	Now tests for either curses or ncurses. By default prefers to use curses, but will use ncurses if curses is not available or if forced by a configure flag. Also minor other tweaks.