use uint64_t for time

1 files changed, 10 insertions, 8 deletions

diff --git a/burstdog.c b/burstdog.c
index 8544f9e..f64b8a7 100644
--- a/burstdog.c
+++ b/burstdog.c
@@ -9,6 +9,8 @@
 #include <stdbool.h>
 #include <string.h>
 #include <time.h>
+#include <stdint.h>
+#include <inttypes.h>
 
 // settings
 #define BURSTDOG_IV          10  // how often to wake up, per second
@@ -28,7 +30,7 @@ struct process
 {
     unsigned int pid;
     int fd;
-    unsigned int time[BURSTDOG_SAMPLES];
+    uint64_t time[BURSTDOG_SAMPLES];
 };
 
 struct process_tab
@@ -97,8 +99,8 @@ int main(int argc, char **argv)
         return EXIT_FAILURE;
     }
 
-    unsigned int times[BURSTDOG_SAMPLES];
-    unsigned int num_samples = 0;
+    uint64_t times[BURSTDOG_SAMPLES];
+    size_t num_samples = 0;
     unsigned int bursting_pid = 0;
     struct process_tab *procs = &process_tabs[0], *oldprocs = &process_tabs[1];
     for (;;) {
@@ -182,7 +184,7 @@ int main(int argc, char **argv)
             struct process *proc = &procs->arr[procs->num++];
             proc->pid = pids[i];
             proc->fd = statfd;
-            proc->time[0] = atoi(utime) + atoi(stime);
+            proc->time[0] = atoll(utime) + atoll(stime);
 
             if (oldproc) {
                 memcpy(&proc->time[1], &oldproc->time[0], (BURSTDOG_SAMPLES-1) * sizeof(int));
@@ -192,9 +194,9 @@ int main(int argc, char **argv)
             }
 
             if (num_samples == BURSTDOG_SAMPLES) {
-                unsigned int total = times[0] - times[BURSTDOG_SAMPLES-1];
-                unsigned int subset = proc->time[0] - proc->time[BURSTDOG_SAMPLES-1];
-                unsigned int share = subset * 100 / total;
+                uint64_t total = times[0] - times[BURSTDOG_SAMPLES-1];
+                uint64_t subset = proc->time[0] - proc->time[BURSTDOG_SAMPLES-1];
+                uint64_t share = subset * 100 / total;
                 if (bursting_pid == proc->pid && share < BURSTDOG_BURST_END) {
                     bursting_pid = 0;
                 } else if (bursting_pid != proc->pid && share >= BURSTDOG_BURST) {
@@ -205,7 +207,7 @@ int main(int argc, char **argv)
                     strftime(timebuf, 128, "%c", &time_s);
 
                     int n_line = snprintf(linebuffer, BUFSIZ,
-                        "%s: %5d %s is bursting: %d of %d ticks (%d%%)\n",
+                        "%s: %5d %s is bursting: %"PRIu64" of %"PRIu64" ticks (%"PRIu64"%%)\n",
                         timebuf, proc->pid, name, subset, total, share);
 
                     int n_written = write(logfd, linebuffer, n_line);