top: optional SMP support by Vineet Gupta (vineetg76 AT gmail.com)

1 files changed, 26 insertions, 7 deletions

diff --git a/libbb/procps.c b/libbb/procps.c
index fd19621db..4d9a95b4f 100644
--- a/libbb/procps.c
+++ b/libbb/procps.c
@@ -219,7 +219,6 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
 #if !ENABLE_FEATURE_FAST_TOP
                         unsigned long vsz, rss;
 #endif
-
                         /* see proc(5) for some details on this */
                         strcpy(filename_tail, "/stat");
                         n = read_to_buf(filename, buf);
@@ -247,9 +246,12 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
                                 "%lu "                 /* start_time */
                                 "%lu "                 /* vsize */
                                 "%lu "                 /* rss */
-                        /*      "%lu %lu %lu %lu %lu %lu " rss_rlim, start_code, end_code, start_stack, kstk_esp, kstk_eip */
-                        /*      "%u %u %u %u "         signal, blocked, sigignore, sigcatch */
-                        /*      "%lu %lu %lu"          wchan, nswap, cnswap */
+#if ENABLE_FEATURE_TOP_SMP_PROCESS
+                                "%*s %*s %*s %*s %*s %*s " /*rss_rlim, start_code, end_code, start_stack, kstk_esp, kstk_eip */
+                                "%*s %*s %*s %*s "         /*signal, blocked, sigignore, sigcatch */
+                                "%*s %*s %*s %*s "         /*wchan, nswap, cnswap, exit_signal */
+                                "%d"                       /*cpu last seen on*/
+#endif
                                 ,
                                 sp->state, &sp->ppid,
                                 &sp->pgid, &sp->sid, &tty,
@@ -257,9 +259,19 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
                                 &tasknice,
                                 &sp->start_time,
                                 &vsz,
-                                &rss);
-                        if (n != 11)
+                                &rss
+#if ENABLE_FEATURE_TOP_SMP_PROCESS
+                                , &sp->last_seen_on_cpu
+#endif
+                                );
+
+                        if (n < 11)
                                 break;
+#if ENABLE_FEATURE_TOP_SMP_PROCESS
+                        if (n < 11+15)
+                                sp->last_seen_on_cpu = 0;
+#endif
+
                         /* vsz is in bytes and we want kb */
                         sp->vsz = vsz >> 10;
                         /* vsz is in bytes but rss is in *PAGES*! Can you believe that? */
@@ -288,7 +300,15 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
                         sp->vsz = fast_strtoul_10(&cp) >> 10;
                         /* vsz is in bytes but rss is in *PAGES*! Can you believe that? */
                         sp->rss = fast_strtoul_10(&cp) << sp->shift_pages_to_kb;
+#if ENABLE_FEATURE_TOP_SMP_PROCESS
+                        /* (6): rss_rlim, start_code, end_code, start_stack, kstk_esp, kstk_eip */
+                        /* (4): signal, blocked, sigignore, sigcatch */
+                        /* (4): wchan, nswap, cnswap, exit_signal */
+                        cp = skip_fields(cp, 14);
+//FIXME: is it safe to assume this field exists?
+                        sp->last_seen_on_cpu = fast_strtoul_10(&cp);
 #endif
+#endif /* end of !ENABLE_FEATURE_TOP_SMP_PROCESS */
 
                         if (sp->vsz == 0 && sp->state[0] != 'Z')
                                 sp->state[1] = 'W';
@@ -300,7 +320,6 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
                                 sp->state[2] = 'N';
                         else
                                 sp->state[2] = ' ';
-
                 }
 
 #if ENABLE_FEATURE_TOPMEM