[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/procps/iostat.c b/ap/app/busybox/src/procps/iostat.c
new file mode 100644
index 0000000..978d234
--- /dev/null
+++ b/ap/app/busybox/src/procps/iostat.c
@@ -0,0 +1,535 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Report CPU and I/O stats, based on sysstat version 9.1.2 by Sebastien Godard
+ *
+ * Copyright (C) 2010 Marek Polacek <mmpolacek@gmail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+//config:config IOSTAT
+//config: bool "iostat"
+//config: default y
+//config: help
+//config: Report CPU and I/O statistics
+
+//applet:IF_IOSTAT(APPLET(iostat, BB_DIR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_IOSTAT) += iostat.o
+
+#include "libbb.h"
+#include <sys/utsname.h> /* struct utsname */
+
+//#define debug(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
+#define debug(fmt, ...) ((void)0)
+
+#define MAX_DEVICE_NAME 12
+#define MAX_DEVICE_NAME_STR "12"
+
+#if 1
+typedef unsigned long long cputime_t;
+typedef long long icputime_t;
+# define FMT_DATA "ll"
+# define CPUTIME_MAX (~0ULL)
+#else
+typedef unsigned long cputime_t;
+typedef long icputime_t;
+# define FMT_DATA "l"
+# define CPUTIME_MAX (~0UL)
+#endif
+
+enum {
+ STATS_CPU_USER,
+ STATS_CPU_NICE,
+ STATS_CPU_SYSTEM,
+ STATS_CPU_IDLE,
+ STATS_CPU_IOWAIT,
+ STATS_CPU_IRQ,
+ STATS_CPU_SOFTIRQ,
+ STATS_CPU_STEAL,
+ STATS_CPU_GUEST,
+
+ GLOBAL_UPTIME,
+ SMP_UPTIME,
+
+ N_STATS_CPU,
+};
+
+typedef struct {
+ cputime_t vector[N_STATS_CPU];
+} stats_cpu_t;
+
+typedef struct {
+ stats_cpu_t *prev;
+ stats_cpu_t *curr;
+ cputime_t itv;
+} stats_cpu_pair_t;
+
+typedef struct {
+ unsigned long long rd_sectors;
+ unsigned long long wr_sectors;
+ unsigned long rd_ops;
+ unsigned long wr_ops;
+} stats_dev_data_t;
+
+typedef struct stats_dev {
+ struct stats_dev *next;
+ char dname[MAX_DEVICE_NAME + 1];
+ stats_dev_data_t prev_data;
+ stats_dev_data_t curr_data;
+} stats_dev_t;
+
+/* Globals. Sort by size and access frequency. */
+struct globals {
+ smallint show_all;
+ unsigned total_cpus; /* Number of CPUs */
+ unsigned clk_tck; /* Number of clock ticks per second */
+ llist_t *dev_name_list; /* List of devices entered on the command line */
+ stats_dev_t *stats_dev_list;
+ struct tm tmtime;
+ struct {
+ const char *str;
+ unsigned div;
+ } unit;
+};
+#define G (*ptr_to_globals)
+#define INIT_G() do { \
+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+ G.unit.str = "Blk"; \
+ G.unit.div = 1; \
+} while (0)
+
+/* Must match option string! */
+enum {
+ OPT_c = 1 << 0,
+ OPT_d = 1 << 1,
+ OPT_t = 1 << 2,
+ OPT_z = 1 << 3,
+ OPT_k = 1 << 4,
+ OPT_m = 1 << 5,
+};
+
+static ALWAYS_INLINE unsigned get_user_hz(void)
+{
+ return sysconf(_SC_CLK_TCK);
+}
+
+static ALWAYS_INLINE int this_is_smp(void)
+{
+ return (G.total_cpus > 1);
+}
+
+static void print_header(void)
+{
+ char buf[32];
+ struct utsname uts;
+
+ uname(&uts); /* never fails */
+
+ /* Date representation for the current locale */
+ strftime(buf, sizeof(buf), "%x", &G.tmtime);
+
+ printf("%s %s (%s) \t%s \t_%s_\t(%u CPU)\n\n",
+ uts.sysname, uts.release, uts.nodename,
+ buf, uts.machine, G.total_cpus);
+}
+
+static void get_localtime(struct tm *ptm)
+{
+ time_t timer;
+ time(&timer);
+ localtime_r(&timer, ptm);
+}
+
+static void print_timestamp(void)
+{
+ char buf[64];
+ /* %x: date representation for the current locale */
+ /* %X: time representation for the current locale */
+ strftime(buf, sizeof(buf), "%x %X", &G.tmtime);
+ printf("%s\n", buf);
+}
+
+static cputime_t get_smp_uptime(void)
+{
+ FILE *fp;
+ unsigned long sec, dec;
+
+ fp = xfopen_for_read("/proc/uptime");
+
+ if (fscanf(fp, "%lu.%lu", &sec, &dec) != 2)
+ bb_error_msg_and_die("can't read '%s'", "/proc/uptime");
+
+ fclose(fp);
+
+ return (cputime_t)sec * G.clk_tck + dec * G.clk_tck / 100;
+}
+
+/* Fetch CPU statistics from /proc/stat */
+static void get_cpu_statistics(stats_cpu_t *sc)
+{
+ FILE *fp;
+ char buf[1024];
+
+ fp = xfopen_for_read("/proc/stat");
+
+ memset(sc, 0, sizeof(*sc));
+
+ while (fgets(buf, sizeof(buf), fp)) {
+ int i;
+ char *ibuf;
+
+ /* Does the line start with "cpu "? */
+ if (!starts_with_cpu(buf) || buf[3] != ' ') {
+ continue;
+ }
+ ibuf = buf + 4;
+ for (i = STATS_CPU_USER; i <= STATS_CPU_GUEST; i++) {
+ ibuf = skip_whitespace(ibuf);
+ sscanf(ibuf, "%"FMT_DATA"u", &sc->vector[i]);
+ if (i != STATS_CPU_GUEST) {
+ sc->vector[GLOBAL_UPTIME] += sc->vector[i];
+ }
+ ibuf = skip_non_whitespace(ibuf);
+ }
+ break;
+ }
+
+ if (this_is_smp()) {
+ sc->vector[SMP_UPTIME] = get_smp_uptime();
+ }
+
+ fclose(fp);
+}
+
+static ALWAYS_INLINE cputime_t get_interval(cputime_t old, cputime_t new)
+{
+ cputime_t itv = new - old;
+
+ return (itv == 0) ? 1 : itv;
+}
+
+#if CPUTIME_MAX > 0xffffffff
+/*
+ * Handle overflow conditions properly for counters which can have
+ * less bits than cputime_t, depending on the kernel version.
+ */
+/* Surprisingly, on 32bit inlining is a size win */
+static ALWAYS_INLINE cputime_t overflow_safe_sub(cputime_t prev, cputime_t curr)
+{
+ cputime_t v = curr - prev;
+
+ if ((icputime_t)v < 0 /* curr < prev - counter overflow? */
+ && prev <= 0xffffffff /* kernel uses 32bit value for the counter? */
+ ) {
+ /* Add 33th bit set to 1 to curr, compensating for the overflow */
+ /* double shift defeats "warning: left shift count >= width of type" */
+ v += ((cputime_t)1 << 16) << 16;
+ }
+ return v;
+}
+#else
+static ALWAYS_INLINE cputime_t overflow_safe_sub(cputime_t prev, cputime_t curr)
+{
+ return curr - prev;
+}
+#endif
+
+static double percent_value(cputime_t prev, cputime_t curr, cputime_t itv)
+{
+ return ((double)overflow_safe_sub(prev, curr)) / itv * 100;
+}
+
+static void print_stats_cpu_struct(stats_cpu_pair_t *stats)
+{
+ cputime_t *p = stats->prev->vector;
+ cputime_t *c = stats->curr->vector;
+ printf(" %7.2f %7.2f %7.2f %7.2f %7.2f %7.2f\n",
+ percent_value(p[STATS_CPU_USER] , c[STATS_CPU_USER] , stats->itv),
+ percent_value(p[STATS_CPU_NICE] , c[STATS_CPU_NICE] , stats->itv),
+ percent_value(p[STATS_CPU_SYSTEM] + p[STATS_CPU_SOFTIRQ] + p[STATS_CPU_IRQ],
+ c[STATS_CPU_SYSTEM] + c[STATS_CPU_SOFTIRQ] + c[STATS_CPU_IRQ], stats->itv),
+ percent_value(p[STATS_CPU_IOWAIT], c[STATS_CPU_IOWAIT], stats->itv),
+ percent_value(p[STATS_CPU_STEAL] , c[STATS_CPU_STEAL] , stats->itv),
+ percent_value(p[STATS_CPU_IDLE] , c[STATS_CPU_IDLE] , stats->itv)
+ );
+}
+
+static void cpu_report(stats_cpu_pair_t *stats)
+{
+ /* Always print a header */
+ puts("avg-cpu: %user %nice %system %iowait %steal %idle");
+
+ /* Print current statistics */
+ print_stats_cpu_struct(stats);
+}
+
+static void print_stats_dev_struct(stats_dev_t *stats_dev, cputime_t itv)
+{
+ stats_dev_data_t *p = &stats_dev->prev_data;
+ stats_dev_data_t *c = &stats_dev->curr_data;
+ if (option_mask32 & OPT_z)
+ if (p->rd_ops == c->rd_ops && p->wr_ops == c->wr_ops)
+ return;
+
+ printf("%-13s %8.2f %12.2f %12.2f %10llu %10llu\n",
+ stats_dev->dname,
+ percent_value(p->rd_ops + p->wr_ops, c->rd_ops + c->wr_ops, itv),
+ percent_value(p->rd_sectors, c->rd_sectors, itv) / G.unit.div,
+ percent_value(p->wr_sectors, c->wr_sectors, itv) / G.unit.div,
+ (c->rd_sectors - p->rd_sectors) / G.unit.div,
+ (c->wr_sectors - p->wr_sectors) / G.unit.div
+ );
+}
+
+static void print_devstat_header(void)
+{
+ printf("Device:%15s%6s%s/s%6s%s/s%6s%s%6s%s\n",
+ "tps",
+ G.unit.str, "_read", G.unit.str, "_wrtn",
+ G.unit.str, "_read", G.unit.str, "_wrtn"
+ );
+}
+
+/*
+ * Is input partition of format [sdaN]?
+ */
+static int is_partition(const char *dev)
+{
+ /* Ok, this is naive... */
+ return ((dev[0] - 's') | (dev[1] - 'd') | (dev[2] - 'a')) == 0 && isdigit(dev[3]);
+}
+
+static stats_dev_t *stats_dev_find_or_new(const char *dev_name)
+{
+ stats_dev_t **curr = &G.stats_dev_list;
+
+ while (*curr != NULL) {
+ if (strcmp((*curr)->dname, dev_name) == 0)
+ return *curr;
+ curr = &(*curr)->next;
+ }
+
+ *curr = xzalloc(sizeof(stats_dev_t));
+ strncpy((*curr)->dname, dev_name, MAX_DEVICE_NAME);
+ return *curr;
+}
+
+static void stats_dev_free(stats_dev_t *stats_dev)
+{
+ if (stats_dev) {
+ stats_dev_free(stats_dev->next);
+ free(stats_dev);
+ }
+}
+
+static void do_disk_statistics(cputime_t itv)
+{
+ char buf[128];
+ char dev_name[MAX_DEVICE_NAME + 1];
+ unsigned long long rd_sec_or_dummy;
+ unsigned long long wr_sec_or_dummy;
+ stats_dev_data_t *curr_data;
+ stats_dev_t *stats_dev;
+ FILE *fp;
+ int rc;
+
+ fp = xfopen_for_read("/proc/diskstats");
+ /* Read and possibly print stats from /proc/diskstats */
+ while (fgets(buf, sizeof(buf), fp)) {
+ sscanf(buf, "%*s %*s %"MAX_DEVICE_NAME_STR"s", dev_name);
+ if (G.dev_name_list) {
+ /* Is device name in list? */
+ if (!llist_find_str(G.dev_name_list, dev_name))
+ continue;
+ } else if (is_partition(dev_name)) {
+ continue;
+ }
+
+ stats_dev = stats_dev_find_or_new(dev_name);
+ curr_data = &stats_dev->curr_data;
+
+ rc = sscanf(buf, "%*s %*s %*s %lu %llu %llu %llu %lu %*s %llu",
+ &curr_data->rd_ops,
+ &rd_sec_or_dummy,
+ &curr_data->rd_sectors,
+ &wr_sec_or_dummy,
+ &curr_data->wr_ops,
+ &curr_data->wr_sectors);
+ if (rc != 6) {
+ curr_data->rd_sectors = rd_sec_or_dummy;
+ curr_data->wr_sectors = wr_sec_or_dummy;
+ //curr_data->rd_ops = ;
+ curr_data->wr_ops = (unsigned long)curr_data->rd_sectors;
+ }
+
+ if (!G.dev_name_list /* User didn't specify device */
+ && !G.show_all
+ && curr_data->rd_ops == 0
+ && curr_data->wr_ops == 0
+ ) {
+ /* Don't print unused device */
+ continue;
+ }
+
+ /* Print current statistics */
+ print_stats_dev_struct(stats_dev, itv);
+ stats_dev->prev_data = *curr_data;
+ }
+
+ fclose(fp);
+}
+
+static void dev_report(cputime_t itv)
+{
+ /* Always print a header */
+ print_devstat_header();
+
+ /* Fetch current disk statistics */
+ do_disk_statistics(itv);
+}
+
+//usage:#define iostat_trivial_usage
+//usage: "[-c] [-d] [-t] [-z] [-k|-m] [ALL|BLOCKDEV...] [INTERVAL [COUNT]]"
+//usage:#define iostat_full_usage "\n\n"
+//usage: "Report CPU and I/O statistics\n"
+//usage: "\n -c Show CPU utilization"
+//usage: "\n -d Show device utilization"
+//usage: "\n -t Print current time"
+//usage: "\n -z Omit devices with no activity"
+//usage: "\n -k Use kb/s"
+//usage: "\n -m Use Mb/s"
+
+int iostat_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int iostat_main(int argc UNUSED_PARAM, char **argv)
+{
+ int opt;
+ unsigned interval;
+ int count;
+ stats_cpu_t stats_data[2];
+ smallint current_stats;
+
+ INIT_G();
+
+ memset(&stats_data, 0, sizeof(stats_data));
+
+ /* Get number of clock ticks per sec */
+ G.clk_tck = get_user_hz();
+
+ /* Determine number of CPUs */
+ G.total_cpus = get_cpu_count();
+ if (G.total_cpus == 0)
+ G.total_cpus = 1;
+
+ /* Parse and process arguments */
+ /* -k and -m are mutually exclusive */
+ opt_complementary = "k--m:m--k";
+ opt = getopt32(argv, "cdtzkm");
+ if (!(opt & (OPT_c + OPT_d)))
+ /* Default is -cd */
+ opt |= OPT_c + OPT_d;
+
+ argv += optind;
+
+ /* Store device names into device list */
+ while (*argv && !isdigit(*argv[0])) {
+ if (strcmp(*argv, "ALL") != 0) {
+ /* If not ALL, save device name */
+ char *dev_name = skip_dev_pfx(*argv);
+ if (!llist_find_str(G.dev_name_list, dev_name)) {
+ llist_add_to(&G.dev_name_list, dev_name);
+ }
+ } else {
+ G.show_all = 1;
+ }
+ argv++;
+ }
+
+ interval = 0;
+ count = 1;
+ if (*argv) {
+ /* Get interval */
+ interval = xatoi_positive(*argv);
+ count = (interval != 0 ? -1 : 1);
+ argv++;
+ if (*argv)
+ /* Get count value */
+ count = xatoi_positive(*argv);
+ }
+
+ if (opt & OPT_m) {
+ G.unit.str = " MB";
+ G.unit.div = 2048;
+ }
+
+ if (opt & OPT_k) {
+ G.unit.str = " kB";
+ G.unit.div = 2;
+ }
+
+ get_localtime(&G.tmtime);
+
+ /* Display header */
+ print_header();
+
+ current_stats = 0;
+ /* Main loop */
+ for (;;) {
+ stats_cpu_pair_t stats;
+
+ stats.prev = &stats_data[current_stats ^ 1];
+ stats.curr = &stats_data[current_stats];
+
+ /* Fill the time structure */
+ get_localtime(&G.tmtime);
+
+ /* Fetch current CPU statistics */
+ get_cpu_statistics(stats.curr);
+
+ /* Get interval */
+ stats.itv = get_interval(
+ stats.prev->vector[GLOBAL_UPTIME],
+ stats.curr->vector[GLOBAL_UPTIME]
+ );
+
+ if (opt & OPT_t)
+ print_timestamp();
+
+ if (opt & OPT_c) {
+ cpu_report(&stats);
+ if (opt & OPT_d)
+ /* Separate outputs by a newline */
+ bb_putchar('\n');
+ }
+
+ if (opt & OPT_d) {
+ if (this_is_smp()) {
+ stats.itv = get_interval(
+ stats.prev->vector[SMP_UPTIME],
+ stats.curr->vector[SMP_UPTIME]
+ );
+ }
+ dev_report(stats.itv);
+ }
+
+ bb_putchar('\n');
+
+ if (count > 0) {
+ if (--count == 0)
+ break;
+ }
+
+ /* Swap stats */
+ current_stats ^= 1;
+
+ sleep(interval);
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ llist_free(G.dev_name_list, NULL);
+ stats_dev_free(G.stats_dev_list);
+ free(&G);
+ }
+
+ return EXIT_SUCCESS;
+}