#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
-#include <dirent.h>
#include <string.h>
#include <sys/ioctl.h>
-#include <sys/stat.h>
/* get page info */
#include <asm/page.h>
#include "busybox.h"
#endif
-typedef struct {
- int pid;
- char user[9];
- char state[4];
- unsigned long rss;
- int ppid;
-#ifdef FEATURE_CPU_USAGE_PERCENTAGE
- unsigned pcpu;
- unsigned long stime, utime;
-#endif
- char *cmd;
-
- /* basename of executable file in call to exec(2),
- size from kernel headers */
- char short_cmd[16];
-} status_t;
-
-typedef int (*cmp_t)(status_t *P, status_t *Q);
+typedef int (*cmp_t)(procps_status_t *P, procps_status_t *Q);
-static status_t *top; /* Hehe */
+static procps_status_t *top; /* Hehe */
static int ntop;
-static int pid_sort (status_t *P, status_t *Q)
+static int pid_sort (procps_status_t *P, procps_status_t *Q)
{
int p = P->pid;
int q = Q->pid;
return 0;
}
-static int mem_sort (status_t *P, status_t *Q)
+static int mem_sort (procps_status_t *P, procps_status_t *Q)
{
long p = P->rss;
long q = Q->rss;
#define sort_depth 3
static cmp_t sort_function[sort_depth];
-static int pcpu_sort (status_t *P, status_t *Q)
+static int pcpu_sort (procps_status_t *P, procps_status_t *Q)
{
int p = P->pcpu;
int q = Q->pcpu;
return 0;
}
-static int time_sort (status_t *P, status_t *Q)
+static int time_sort (procps_status_t *P, procps_status_t *Q)
{
long p = P->stime;
long q = Q->stime;
#define FILE_TO_BUF(filename, fd) do{ \
if (fd == -1 && (fd = open(filename, O_RDONLY)) == -1) { \
- perror_msg_and_die("/proc not be mounted?"); \
+ bb_perror_msg_and_die("/proc not be mounted?"); \
} \
lseek(fd, 0L, SEEK_SET); \
if ((local_n = read(fd, buf, sizeof buf - 1)) < 0) { \
- perror_msg_and_die("%s", filename); \
+ bb_perror_msg_and_die("%s", filename); \
} \
buf[local_n] = '\0'; \
}while(0)
#define FILE_TO_BUF2(filename, fd) do{ \
lseek(fd, 0L, SEEK_SET); \
if ((local_n = read(fd, buf, sizeof buf - 1)) < 0) { \
- perror_msg_and_die("%s", filename); \
+ bb_perror_msg_and_die("%s", filename); \
} \
buf[local_n] = '\0'; \
}while(0)
struct timezone timez;
float elapsed_time;
- status_t *cur;
+ procps_status_t *cur;
int total_time, i, n;
static int prev_count;
int systime, usrtime, pid;
save_history = memcpy(xmalloc(sizeof(struct save_hist)*n), New_save_hist,
sizeof(struct save_hist)*n);
prev_count = n;
- qsort(top, n, sizeof(status_t), (void*)mult_lvl_cmp);
+ qsort(top, n, sizeof(procps_status_t), (void*)mult_lvl_cmp);
}
#else
static cmp_t sort_function;
unsigned long total, used, mfree, shared, buffers, cached;
/* read memory info */
- fp = xfopen("meminfo", "r");
+ fp = bb_xfopen("meminfo", "r");
fgets(buf, sizeof(buf), fp); /* skip first line */
if (fscanf(fp, "Mem: %lu %lu %lu %lu %lu %lu",
&total, &used, &mfree, &shared, &buffers, &cached) != 6) {
- error_msg_and_die("failed to read '%s'", "meminfo");
+ bb_error_msg_and_die("failed to read '%s'", "meminfo");
}
fclose(fp);
/* read load average */
- fp = xfopen("loadavg", "r");
+ fp = bb_xfopen("loadavg", "r");
if (fscanf(fp, "%f %f %f", &avg1, &avg2, &avg3) != 3) {
- error_msg_and_die("failed to read '%s'", "loadavg");
+ bb_error_msg_and_die("failed to read '%s'", "loadavg");
}
fclose(fp);
/* display process statuses */
static void display_status(int count, int col)
{
- status_t *s = top;
+ procps_status_t *s = top;
char rss_str_buf[8];
unsigned long total_memory = display_generic();
#endif
while (count--) {
- char *namecmd = s->cmd;
+ char *namecmd = s->short_cmd;
int pmem;
pmem = 1000.0 * s->rss / total_memory;
s->pcpu/10, s->pcpu%10,
#endif
pmem/10, pmem%10);
- if(namecmd != 0 && namecmd[0] != 0) {
if(strlen(namecmd) > col)
namecmd[col] = 0;
printf("%s\n", namecmd);
- } else {
- namecmd = s->short_cmd;
- if(strlen(namecmd) > (col-2))
- namecmd[col-2] = 0;
- printf("[%s]\n", namecmd);
- }
s++;
- }
+ }
}
-/* returns true for file names which are PID dirs
- * (i.e. start with number)
- */
-static int filter_pids(const struct dirent *dir)
+static void clearmems(void)
{
- char *name = dir->d_name;
- int n;
- char status[20];
- char buf[1024];
- FILE *fp;
- status_t curstatus;
- int pid;
- long tasknice;
- struct stat sb;
-
- if (!(*name >= '0' && *name <= '9'))
- return 0;
- if(stat(name, &sb))
- return 0;
-
- memset(&curstatus, 0, sizeof(status_t));
- pid = atoi(name);
- curstatus.pid = pid;
-
- my_getpwuid(curstatus.user, sb.st_uid);
-
- sprintf(status, "%d/stat", pid);
- if((fp = fopen(status, "r")) == NULL)
- return 0;
- name = fgets(buf, sizeof(buf), fp);
- fclose(fp);
- if(name == NULL)
- return 0;
- name = strrchr(buf, ')'); /* split into "PID (cmd" and "<rest>" */
- if(name == 0 || name[1] != ' ')
- return 0;
- *name = 0;
- sscanf(buf, "%*s (%15c", curstatus.short_cmd);
- n = sscanf(name+2,
- "%c %d "
- "%*s %*s %*s %*s " /* pgrp, session, tty, tpgid */
- "%*s %*s %*s %*s %*s " /* flags, min_flt, cmin_flt, maj_flt, cmaj_flt */
-#ifdef FEATURE_CPU_USAGE_PERCENTAGE
- "%lu %lu "
-#else
- "%*s %*s "
-#endif
- "%*s %*s %*s " /* cutime, cstime, priority */
- "%ld "
- "%*s %*s %*s " /* timeout, it_real_value, start_time */
- "%*s " /* vsize */
- "%ld",
- curstatus.state, &curstatus.ppid,
-#ifdef FEATURE_CPU_USAGE_PERCENTAGE
- &curstatus.utime, &curstatus.stime,
-#endif
- &tasknice,
- &curstatus.rss);
-#ifdef FEATURE_CPU_USAGE_PERCENTAGE
- if(n != 6)
-#else
- if(n != 4)
-#endif
- return 0;
-
- if (curstatus.rss == 0 && curstatus.state[0] != 'Z')
- curstatus.state[1] = 'W';
- else
- curstatus.state[1] = ' ';
- if (tasknice < 0)
- curstatus.state[2] = '<';
- else if (tasknice > 0)
- curstatus.state[2] = 'N';
- else
- curstatus.state[2] = ' ';
-
- curstatus.rss <<= (PAGE_SHIFT - 10); /* 2**10 = 1kb */
-
- sprintf(status, "%d/cmdline", pid);
- if((fp = fopen(status, "r")) == NULL)
- return 0;
- if(fgets(buf, sizeof(buf), fp) != NULL) {
- name = strchr(buf, '\n');
- if(name != NULL)
- *name = 0;
- if(buf[0])
- curstatus.cmd = strdup(buf); /* if NULL it work true also */
- }
- fclose(fp);
-
- n = ntop;
- top = xrealloc(top, (++ntop)*sizeof(status_t));
- memcpy(top + n, &curstatus, sizeof(status_t));
- return 1;
-}
-
-
-static struct dirent **namelist;
-
-static void clearmems(void) {
- int i;
-
- for(i = 0; i < ntop; i++) {
- free(top[i].cmd);
- free(namelist[i]);
- }
free(top);
- free(namelist);
top = 0;
- namelist = 0;
ntop = 0;
}
interval = atoi(optarg);
break;
default:
- show_usage();
+ bb_show_usage();
}
}
#else
col = 35;
#endif
- /* change to proc */
+ /* change to /proc */
if (chdir("/proc") < 0) {
- perror_msg_and_die("chdir('/proc')");
+ bb_perror_msg_and_die("chdir('/proc')");
}
#if defined CONFIG_FEATURE_USE_TERMIOS
tcgetattr(0, (void *) &initial_settings);
#endif
while (1) {
/* read process IDs & status for all the processes */
- if (scandir(".", &namelist, filter_pids, 0) < 0) {
- perror_msg_and_die("scandir('/proc')");
+ procps_status_t * p;
+
+#ifdef CONFIG_SELINUX
+ while ((p = procps_scan(0, 0, NULL) ) != 0) {
+#else
+ while ((p = procps_scan(0)) != 0) {
+#endif
+ int n = ntop;
+
+ top = xrealloc(top, (++ntop)*sizeof(procps_status_t));
+ memcpy(top + n, p, sizeof(procps_status_t));
+ }
+ if (ntop == 0) {
+ bb_perror_msg_and_die("scandir('/proc')");
}
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
if(!Hertz) {
}
do_stats();
#else
- qsort(top, ntop, sizeof(status_t), (void*)sort_function);
+ qsort(top, ntop, sizeof(procps_status_t), (void*)sort_function);
#endif
opt = lines;
if (opt > ntop) {
projects / oweals / busybox.git / blobdiff