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Implement the prof.gdump mallctl.

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This feature makes it possible to toggle the gdump feature on/off during
program execution, whereas the the opt.prof_dump mallctl value can only
be set during program startup.

This resolves #72.
This commit is contained in:
Jason Evans
2015-01-25 21:16:57 -08:00
parent 41f2e692f6
commit 5b8ed5b7c9
7 changed files with 133 additions and 10 deletions
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27
src/ctl.c
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@@ -137,6 +137,7 @@ CTL_PROTO(arenas_extend)
CTL_PROTO(prof_thread_active_init)
CTL_PROTO(prof_active)
CTL_PROTO(prof_dump)
CTL_PROTO(prof_gdump)
CTL_PROTO(prof_reset)
CTL_PROTO(prof_interval)
CTL_PROTO(lg_prof_sample)
@@ -347,6 +348,7 @@ static const ctl_named_node_t prof_node[] = {
{NAME("thread_active_init"), CTL(prof_thread_active_init)},
{NAME("active"), CTL(prof_active)},
{NAME("dump"), CTL(prof_dump)},
{NAME("gdump"), CTL(prof_gdump)},
{NAME("reset"), CTL(prof_reset)},
{NAME("interval"), CTL(prof_interval)},
{NAME("lg_sample"), CTL(lg_prof_sample)}
@@ -1790,6 +1792,31 @@ label_return:
return (ret);
}
static int
prof_gdump_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
void *newp, size_t newlen)
{
int ret;
bool oldval;
if (!config_prof)
return (ENOENT);
if (newp != NULL) {
if (newlen != sizeof(bool)) {
ret = EINVAL;
goto label_return;
}
oldval = prof_gdump_set(*(bool *)newp);
} else
oldval = prof_gdump_get();
READ(oldval, bool);
ret = 0;
label_return:
return (ret);
}
static int
prof_reset_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
void *newp, size_t newlen)