support system events

2 files changed, 15 insertions, 5 deletions

diff --git a/include/load.h b/include/load.h
index cf2c6c3..e460e7a 100644
--- a/include/load.h
+++ b/include/load.h
@@ -23,6 +23,7 @@ struct task {
 #define MAX_TASKS 100
 
 extern struct task tasks[MAX_TASKS];
+extern struct evlink* sys_events;
 extern u64 time0;
 extern u32 g_min_task;
 extern u32 g_max_task;
diff --git a/src/load.c b/src/load.c
index 2796222..e97bdc4 100644
--- a/src/load.c
+++ b/src/load.c
@@ -84,6 +84,8 @@ struct heap* load(char **files, int no_files, unsigned int *count)
 
 
 struct task tasks[MAX_TASKS];
+struct evlink *sys_events = NULL;
+struct evlink **sys_next  = &sys_events;
 u64 time0 = 0;
 u32 g_max_task = MAX_TASKS;
 u32 g_min_task = 0;
@@ -112,6 +114,8 @@ void crop_events_all(double min, double max)
 struct task* by_pid(int pid)
 {
         struct task* t;
+        if (!pid)
+                return NULL;
         /* slow, don't care for now */
         for (t = tasks; t < tasks + MAX_TASKS; t++) {
                 if (!t->pid) /* end, allocate */
@@ -152,8 +156,8 @@ void split(struct heap* h, unsigned int count)
                 if (!time0 && time)
                         time0 = time;
                 t = by_pid(rec->hdr.pid);
-                if (!t) {
-                        printf("dropped %d\n", rec->hdr.pid);
+                if (!t && rec->hdr.pid) {
+                        fprintf(stderr, "dropped %d\n", rec->hdr.pid);
                         continue;
                 }
                 switch (rec->hdr.type) {
@@ -166,10 +170,15 @@ void split(struct heap* h, unsigned int count)
                 default:
                         lnk->rec = rec;
                         lnk->next = NULL;
-                        *(t->next) = lnk;
-                        t->next = &lnk->next;
+                        if (t) {
+                                *(t->next) = lnk;
+                                t->next = &lnk->next;
+                                t->no_events++;
+                        } else {
+                                *(sys_next) = lnk;
+                                sys_next    = &lnk->next;
+                        }
                         lnk++;
-                        t->no_events++;
                         break;
                 }
         }