On Thu, Feb 13 2020, Jeremie Courreges-Anglas <j...@openbsd.org> wrote:

[...]

> - documents the 60 seconds grace period in the manpage

That part was not accurate.  Updated wording:

  "After a resume, the effect of those options is inhibited for 60 seconds."


Index: apmd.c
===================================================================
--- apmd.c.orig
+++ apmd.c
@@ -368,18 +368,20 @@ resumed(int ctl_fd)
 }
 
 #define TIMO (10*60)                   /* 10 minutes */
+#define AUTOACTION_GRACE_PERIOD (60)   /* 1mn after resume */
 
 int
 main(int argc, char *argv[])
 {
        const char *fname = _PATH_APM_CTLDEV;
        int ctl_fd, sock_fd, ch, suspends, standbys, hibernates, resumes;
-       int autoaction = 0;
+       int autoaction = 0, autoaction_inflight = 0;
        int autolimit = 0;
        int statonly = 0;
        int powerstatus = 0, powerbak = 0, powerchange = 0;
        int noacsleep = 0;
        struct timespec ts = {TIMO, 0}, sts = {0, 0};
+       struct timespec last_resume = { 0, 0 };
        struct apm_power_info pinfo;
        const char *sockname = _PATH_APM_SOCKET;
        const char *errstr;
@@ -566,6 +568,8 @@ main(int argc, char *argv[])
                                powerstatus = powerbak;
                                powerchange = 1;
                        }
+                       clock_gettime(CLOCK_MONOTONIC, &last_resume);
+                       autoaction_inflight = 0;
                        resumes++;
                        break;
                case APM_POWER_CHANGE:
@@ -577,17 +581,30 @@ main(int argc, char *argv[])
 
                        if (!powerstatus && autoaction &&
                            autolimit > (int)pinfo.battery_life) {
+                               struct timespec graceperiod, now;
+
+                               graceperiod = last_resume;
+                               graceperiod.tv_sec += AUTOACTION_GRACE_PERIOD;
+                               clock_gettime(CLOCK_MONOTONIC, &now);
+
                                logmsg(LOG_NOTICE,
                                    "estimated battery life %d%%"
-                                   " below configured limit %d%%",
-                                   pinfo.battery_life,
-                                   autolimit
+                                   " below configured limit %d%%%s%s",
+                                   pinfo.battery_life, autolimit,
+                                   !autoaction_inflight ? "" : ", in flight",
+                                   timespeccmp(&now, &graceperiod, >) ?
+                                       "" : ", grace period"
                                );
 
-                               if (autoaction == AUTO_SUSPEND)
-                                       suspends++;
-                               else
-                                       hibernates++;
+                               if (!autoaction_inflight &&
+                                   timespeccmp(&now, &graceperiod, >)) {
+                                       if (autoaction == AUTO_SUSPEND)
+                                               suspends++;
+                                       else
+                                               hibernates++;
+                                       /* Block autoaction until next resume */
+                                       autoaction_inflight = 1;
+                               }
                        }
                        break;
                default:
Index: apmd.8
===================================================================
--- apmd.8.orig
+++ apmd.8
@@ -128,6 +128,7 @@ If both
 and
 .Fl z
 are specified, the last one will supersede the other.
+After a resume, the effect of those options is inhibited for 60 seconds.
 .El
 .Pp
 When a client requests a suspend or stand-by state,


-- 
jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF  DDCC 0DFA 74AE 1524 E7EE

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