nmon for linux

/* * lmon.c -- Curses based Performance Monitor for Linux * Developer: Nigel Griffiths. */ /* * Use the following Makefile CFLAGS= -g -DPOWER -DPARTITIONS LDFLAGS=-lcurses -lodm -lcfg nmon: nmon.o * end of Makefile */ #define RAW(member) (long)((long)(p->cpuN[i].member) - (long)(q->cpuN[i].member)) #define RAWTOTAL(member) (long)((long)(p->cpu_total.member) - (long)(q->cpu_total.member)) #define VERSION "12f" char version[] = VERSION; static char *SccsId = "nmon " VERSION; #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <ctype.h> #include <ncurses.h> #include <signal.h> #include <pwd.h> #include <fcntl.h> #include <math.h> #include <time.h> #include <sys/errno.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/ioctl.h> #include <sys/utsname.h> #include <sys/time.h> #include <sys/socket.h> #include <sys/wait.h> #define FLIP(variable) if(variable) variable=0; else variable=1; #ifdef MALLOC_DEBUG #define MALLOC(argument) mymalloc(argument,__LINE__) #define FREE(argument) myfree(argument,__LINE__) #define REALLOC(argument1,argument2) myrealloc(argument1,argument2,__LINE__) void *mymalloc(int size, int line) { void * ptr; ptr= malloc(size); fprintf(stderr,"0x%x = malloc(%d) at line=%d\n",ptr,size,line); return ptr; } void myfree(void *ptr,int line) { fprintf(stderr,"free(0x%x) at line=%d\n",ptr,line); free(ptr); } void *myrealloc(void *oldptr, int size, int line) { void * ptr; ptr= realloc(oldptr,size); fprintf(stderr,"0x%x = realloc(0x%x, %d) at line=%d\n",ptr,oldptr,size,line); return ptr; } #else #define MALLOC(argument) malloc(argument) #define FREE(argument) free(argument) #define REALLOC(argument1,argument2) realloc(argument1,argument2) #endif /* MALLOC STUFF */ #define P_CPUINFO 0 #define P_STAT 1 #define P_VERSION 2 #define P_MEMINFO 3 #define P_UPTIME 4 #define P_LOADAVG 5 #define P_NFS 6 #define P_NFSD 7 #define P_NUMBER 8 /* one more than the max */ char *month[12] = { "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC" }; /* Cut of everything after the first space in callback * Delete any '&' just before the space */ char *check_call_string (char* callback, const char* name) { char * tmp_ptr = callback; if (strlen(callback) > 256) { fprintf(stderr,"ERROR nmon: ignoring %s - too long\n", name); return (char *) NULL; } for( ; *tmp_ptr != '\0' && *tmp_ptr != ' ' && *tmp_ptr != '&'; ++tmp_ptr ) ; *tmp_ptr = '\0'; if( tmp_ptr == callback ) return (char *)NULL; else return callback; } /* Remove error output to this buffer and display it if NMONDEBUG=1 */ char errorstr[70]; int error_on = 0; void error(char *err) { strncpy(errorstr,err,69); } /* /proc/cpuinfo can be 512 bytes per CPU and we allow 256 CPUs */ /* and 20 lines per CPU so boost the buffers for this one */ #define PROC_MAXBUF (1024*4) #define CPUINFO_MAXBUF (512*256) #define PROC_MAXLINES (20*256*sizeof(char *)) int reread =0; struct { FILE *fp; char *filename; int lines; char *line[PROC_MAXLINES]; char *buf; } proc[P_NUMBER]; void proc_init() { int i; /* Initialise the file pointers */ for(i=0;i<P_NUMBER;i++) { proc[i].fp = 0; if(i == P_CPUINFO) proc[i].buf = (char *)malloc(CPUINFO_MAXBUF); else proc[i].buf = (char *)malloc(PROC_MAXBUF); } proc[P_CPUINFO].filename = "/proc/cpuinfo"; proc[P_STAT].filename = "/proc/stat"; proc[P_VERSION].filename = "/proc/version"; proc[P_MEMINFO].filename = "/proc/meminfo"; proc[P_UPTIME].filename = "/proc/uptime"; proc[P_LOADAVG].filename = "/proc/loadavg"; proc[P_NFS].filename = "/proc/net/rpc/nfs"; proc[P_NFSD].filename = "/proc/net/rpc/nfsd"; } void proc_read(int num) { int i; int size; int found; char buf[1024]; int bytes; if(proc[num].fp == 0) { if( (proc[num].fp = fopen(proc[num].filename,"r")) == NULL) { sprintf(buf, "failed to open file %s", proc[num].filename); error(buf); proc[num].fp = 0; return; } } rewind(proc[num].fp); if(num == P_CPUINFO) bytes = CPUINFO_MAXBUF -1; else bytes = PROC_MAXBUF -1; size = fread(proc[num].buf, 1, bytes, proc[num].fp); proc[num].buf[size]=0; proc[num].lines=0; proc[num].line[0]=&proc[num].buf[0]; if(num == P_VERSION) { found=0; for(i=0;i<size;i++) { /* remove some weird stuff */ if( found== 0 && proc[num].buf[i] == ')' && proc[num].buf[i+1] == ' ' && proc[num].buf[i+2] == '(' ) { proc[num].buf[i+1] = '\n'; found=1; } else { if( proc[num].buf[i] == ')' && proc[num].buf[i+1] == ' ' && proc[num].buf[i+2] == '#' ) { proc[num].buf[i+1] = '\n'; } if( proc[num].buf[i] == '#' && proc[num].buf[i+2] == '1' ) { proc[num].buf[i] = '\n'; } } } } for(i=0;i<size;i++) { if(proc[num].buf[i] == '\t') proc[num].buf[i]= ' '; if(proc[num].buf[i] == '\n') { proc[num].lines++; proc[num].buf[i] = 0; proc[num].line[proc[num].lines] = &proc[num].buf[i+1]; } if(proc[num].lines==PROC_MAXLINES-1) break; } if(reread) { fclose( proc[num].fp); proc[num].fp = 0; } } #include <dirent.h> struct procsinfo { int pi_pid; char pi_comm[64]; char pi_state; int pi_ppid; int pi_pgrp; int pi_session; int pi_tty_nr; int pi_tty_pgrp; unsigned long pi_flags; unsigned long pi_minflt; unsigned long pi_cmin_flt; unsigned long pi_majflt; unsigned long pi_cmaj_flt; unsigned long pi_utime; unsigned long pi_stime; long pi_cutime; long pi_cstime; long pi_pri; long pi_nice; long junk /* removed */; long pi_it_real_value; unsigned long pi_start_time; unsigned long pi_vsize; long pi_rss; /* - 3 */ unsigned long pi_rlim_cur; unsigned long pi_start_code; unsigned long pi_end_code; unsigned long pi_start_stack; unsigned long pi_esp; unsigned long pi_eip; /* The signal information here is obsolete. */ unsigned long pi_pending_signal; unsigned long pi_blocked_sig; unsigned long pi_sigign; unsigned long pi_sigcatch; unsigned long pi_wchan; unsigned long pi_nswap; unsigned long pi_cnswap; int pi_exit_signal; int pi_cpu; unsigned long statm_size; /* total program size */ unsigned long statm_resident; /* resident set size */ unsigned long statm_share; /* shared pages */ unsigned long statm_trs; /* text (code) */ unsigned long statm_drs; /* data/stack */ unsigned long statm_lrs; /* library */ unsigned long statm_dt; /* dirty pages */ }; #include <mntent.h> #include <fstab.h> #include <sys/stat.h> #include <sys/statfs.h> #include <net/if.h> int debug =0; time_t timer; /* used to work out the hour/min/second */ /* Counts of resources */ int cpus = 1; /* number of CPUs in system (lets hope its more than zero!) */ int max_cpus = 1; /* highest number of CPUs in DLPAR */ int networks = 0; /* number of networks in system */ int partitions = 0; /* number of partitions in system */ int partitions_short = 0; /* partitions file data short form (i.e. data missing) */ int disks = 0; /