/*%U %S %E %P %F %R %w %W*/ /*the process resource information is written in "temp.txt" with format as above*/ void print() { FILE *fp; fp = fopen("temp.txt", "r"); if(fp==NULL) { printf("open error\n"); return ; } //get information from "temp.txt" double user_time, sys_time, per,elapsed; int maj_flt, min_flt, sa, sw; if(fscanf(fp, "%lf %lf 0:%lf", &user_time, &sys_time, &elapsed)!=3) printf("wrong 1\n"); if(fscanf(fp, "%d %d %d %d %lf", &maj_flt, &min_flt, &sw, &sa, &per)!=5) printf("wrong 2\n"); printf("CPU time %.1lfms (user time %.1lfms, system time %.1lfms)\n", (user_time+sys_time)*1000.0, user_time*1000.0, sys_time*1000.0); printf("elapsed time %.1lfms\nmajor fault %d, minor fault %d\nswap %d\ncontext switch %d\n", elapsed*1000.0,maj_flt, min_flt, sa, sw); } int solve(char *s) { /*make format like: /usr/bin/time -o temp.txt -f "%U %S %E %P %F %R %w %W" command*/ strcpy(tmp, s); strcpy(s, pre); int j=strlen(s); s[j++]=' '; s[j++]='\"'; strcpy(s+j, sp); j=strlen(s); s[j++]='\"'; s[j++]=' '; strcpy(s+j, tmp); /*output system command*/ printf("command is %s\n", s); return system(s); } int main () { int child_sta=0; rusage usage; time_t ep_t1, ep_t2; while(gets(input)) { int j = getToken(input); if(j<0) printf("input not obeying format\n"); else { strcpy(cmd, input+j); int p = strlen(cmd)-1; while(cmd[p]==' '&&p>=0) p--; cmd[p+1] = '\0'; // delete white space after command solve(cmd); print(); } } return 0; } |
