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@ -36,7 +36,7 @@ static procps_status_t *top; /* Hehe */
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static int ntop;
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#define OPT_BATCH_MODE (option_mask32 & 0x4)
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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static int pid_sort(procps_status_t *P, procps_status_t *Q)
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{
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return (Q->pid - P->pid);
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@ -48,10 +48,10 @@ static int mem_sort(procps_status_t *P, procps_status_t *Q)
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return (int)(Q->rss - P->rss);
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}
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#define sort_depth 3
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static cmp_t sort_function[sort_depth];
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enum { SORT_DEPTH = 3 };
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static cmp_t sort_function[SORT_DEPTH];
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static int pcpu_sort(procps_status_t *P, procps_status_t *Q)
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{
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@ -66,7 +66,7 @@ static int time_sort(procps_status_t *P, procps_status_t *Q)
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static int mult_lvl_cmp(void* a, void* b) {
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int i, cmp_val;
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for (i = 0; i < sort_depth; i++) {
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for (i = 0; i < SORT_DEPTH; i++) {
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cmp_val = (*sort_function[i])(a, b);
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if (cmp_val != 0)
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return cmp_val;
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@ -93,13 +93,12 @@ static int prev_hist_count;
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static unsigned total_pcpu;
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/* static unsigned long total_rss; */
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struct jiffy_counts {
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typedef struct {
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unsigned long long usr,nic,sys,idle,iowait,irq,softirq,steal;
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unsigned long long total;
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unsigned long long busy;
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};
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static struct jiffy_counts jif, prev_jif;
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} jiffy_counts_t;
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static jiffy_counts_t jif, prev_jif;
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static void get_jiffy_counts(void)
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{
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FILE* fp = xfopen("stat", "r");
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@ -170,7 +169,7 @@ static void do_stats(void)
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}
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#else
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static cmp_t sort_function;
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#endif /* CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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#endif /* FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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/* display generic info (meminfo / loadavg) */
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static unsigned long display_generic(int scr_width)
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@ -271,8 +270,9 @@ static void display_status(int count, int scr_width)
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unsigned long total_memory = display_generic(scr_width); /* or use total_rss? */
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unsigned pmem_shift, pmem_scale;
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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unsigned pcpu_shift, pcpu_scale;
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unsigned busy_jifs;
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/* what info of the processes is shown */
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printf(OPT_BATCH_MODE ? "%.*s" : "\e[7m%.*s\e[0m", scr_width,
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@ -296,7 +296,12 @@ static void display_status(int count, int scr_width)
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pmem_scale /= 4;
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pmem_shift -= 2;
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}
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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busy_jifs = jif.busy - prev_jif.busy;
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/* This happens if there were lots of short-lived processes
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* between two top updates (e.g. compilation) */
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if (total_pcpu < busy_jifs) total_pcpu = busy_jifs;
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/*
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* CPU% = s->pcpu/sum(s->pcpu) * busy_cpu_ticks/total_cpu_ticks
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* (pcpu is delta of sys+user time between samples)
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@ -306,7 +311,7 @@ static void display_status(int count, int scr_width)
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* we assume that unsigned is at least 32-bit.
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*/
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pcpu_shift = 6;
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pcpu_scale = (1000*64*(uint16_t)(jif.busy-prev_jif.busy) ? : 1);
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pcpu_scale = (1000*64*(uint16_t)busy_jifs ? : 1);
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while (pcpu_scale < (1U<<(bits_per_int-2))) {
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pcpu_scale *= 4;
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pcpu_shift += 2;
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@ -352,7 +357,7 @@ static void clearmems(void)
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ntop = 0;
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}
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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#include <termios.h>
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#include <signal.h>
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@ -362,12 +367,12 @@ static struct termios initial_settings;
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static void reset_term(void)
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{
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tcsetattr(0, TCSANOW, (void *) &initial_settings);
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#ifdef CONFIG_FEATURE_CLEAN_UP
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#if ENABLE_FEATURE_CLEAN_UP
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clearmems();
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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free(prev_hist);
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#endif
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#endif /* CONFIG_FEATURE_CLEAN_UP */
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#endif /* FEATURE_CLEAN_UP */
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}
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static void sig_catcher(int sig ATTRIBUTE_UNUSED)
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@ -375,7 +380,7 @@ static void sig_catcher(int sig ATTRIBUTE_UNUSED)
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reset_term();
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exit(1);
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}
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#endif /* CONFIG_FEATURE_USE_TERMIOS */
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#endif /* FEATURE_USE_TERMIOS */
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int top_main(int argc, char **argv)
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@ -384,25 +389,24 @@ int top_main(int argc, char **argv)
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unsigned interval = 5; /* default update rate is 5 seconds */
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unsigned iterations = UINT_MAX; /* 2^32 iterations by default :) */
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char *sinterval, *siterations;
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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struct termios new_settings;
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struct timeval tv;
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fd_set readfds;
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unsigned char c;
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#endif /* CONFIG_FEATURE_USE_TERMIOS */
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#endif /* FEATURE_USE_TERMIOS */
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/* do normal option parsing */
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interval = 5;
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opt_complementary = "-";
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getopt32(argc, argv, "d:n:b",
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&sinterval, &siterations);
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getopt32(argc, argv, "d:n:b", &sinterval, &siterations);
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if (option_mask32 & 0x1) interval = xatou(sinterval); // -d
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if (option_mask32 & 0x2) iterations = xatou(siterations); // -n
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//if (option_mask32 & 0x4) // -b
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/* change to /proc */
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xchdir("/proc");
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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tcgetattr(0, (void *) &initial_settings);
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memcpy(&new_settings, &initial_settings, sizeof(struct termios));
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/* unbuffered input, turn off echo */
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@ -412,15 +416,15 @@ int top_main(int argc, char **argv)
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signal(SIGINT, sig_catcher);
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tcsetattr(0, TCSANOW, (void *) &new_settings);
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atexit(reset_term);
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#endif /* CONFIG_FEATURE_USE_TERMIOS */
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#endif /* FEATURE_USE_TERMIOS */
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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sort_function[0] = pcpu_sort;
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sort_function[1] = mem_sort;
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sort_function[2] = time_sort;
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#else
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sort_function = mem_sort;
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#endif /* CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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#endif /* FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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while (1) {
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procps_status_t *p;
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@ -428,14 +432,14 @@ int top_main(int argc, char **argv)
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/* Default to 25 lines - 5 lines for status */
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lines = 24 - 3;
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col = 79;
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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get_terminal_width_height(0, &col, &lines);
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if (lines < 5 || col < MIN_WIDTH) {
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sleep(interval);
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continue;
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}
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lines -= 3;
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#endif /* CONFIG_FEATURE_USE_TERMIOS */
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#endif /* FEATURE_USE_TERMIOS */
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/* read process IDs & status for all the processes */
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while ((p = procps_scan(0)) != 0) {
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@ -447,7 +451,7 @@ int top_main(int argc, char **argv)
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if (ntop == 0) {
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bb_error_msg_and_die("can't find process info in /proc");
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}
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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if (!prev_hist_count) {
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do_stats();
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sleep(1);
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@ -458,14 +462,14 @@ int top_main(int argc, char **argv)
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qsort(top, ntop, sizeof(procps_status_t), (void*)mult_lvl_cmp);
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#else
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qsort(top, ntop, sizeof(procps_status_t), (void*)sort_function);
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#endif /* CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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#endif /* FEATURE_TOP_CPU_USAGE_PERCENTAGE */
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count = lines;
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if (OPT_BATCH_MODE || count > ntop) {
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count = ntop;
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}
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/* show status for each of the processes */
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display_status(count, col);
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#ifdef CONFIG_FEATURE_USE_TERMIOS
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#if ENABLE_FEATURE_USE_TERMIOS
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tv.tv_sec = interval;
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tv.tv_usec = 0;
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FD_ZERO(&readfds);
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@ -478,7 +482,7 @@ int top_main(int argc, char **argv)
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if (c == 'q' || c == initial_settings.c_cc[VINTR])
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break;
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if (c == 'M') {
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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sort_function[0] = mem_sort;
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sort_function[1] = pcpu_sort;
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sort_function[2] = time_sort;
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@ -486,7 +490,7 @@ int top_main(int argc, char **argv)
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sort_function = mem_sort;
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#endif
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}
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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if (c == 'P') {
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sort_function[0] = pcpu_sort;
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sort_function[1] = mem_sort;
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@ -499,7 +503,7 @@ int top_main(int argc, char **argv)
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}
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#endif
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if (c == 'N') {
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#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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#if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
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sort_function[0] = pid_sort;
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#else
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sort_function = pid_sort;
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@ -510,7 +514,7 @@ int top_main(int argc, char **argv)
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break;
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#else
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sleep(interval);
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#endif /* CONFIG_FEATURE_USE_TERMIOS */
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#endif /* FEATURE_USE_TERMIOS */
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clearmems();
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}
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if (ENABLE_FEATURE_CLEAN_UP)
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