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sys/ctrace: try to restart stopped processes (why does not work?)

This commit is contained in:
Giacomo Tesio 2017-11-26 23:57:52 +01:00
parent f6e3784639
commit a86e2b506a
1 changed files with 9 additions and 5 deletions
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14
sys/src/cmd/sys/ctrace.c
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@ -71,11 +71,11 @@ reader(void *v)
if ((r.tfd = open(s->buf, OREAD)) < 0)
die(&r);
StartReading:
cwrite(&r, "stop", 0);
cwrite(&r, "startsyscall", 0);
StartReading:
wakeup = awake(500);
wakeup = awake(750);
while((n = pread(r.tfd, s->buf, sizeof(s->buf)-1, 0)) > 0){
forgivewkp(wakeup);
if(strstr(s->buf, " rfork ") != nil){
@ -100,9 +100,13 @@ StartReading:
cwrite(&r, "startsyscall", 1);
wakeup = awake(500);
}
if(n < 0 && awakened(wakeup)){
cwrite(&r, "startsyscall", 0);
goto StartReading;
if(awakened(wakeup)){
rf = smprint("/proc/%d/status", r.pid);
if(access(rf, AEXIST) == 0){
free(rf);
goto StartReading;
}
free(rf);
}
die(&r);
}