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Add "prof.dump_prefix" to override filename prefixes for dumps.

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This commit is contained in:
zhxchen17
2019-09-09 20:18:41 -07:00
committed by Qi Wang
parent 242af439b8
commit 4b76c684bb
8 changed files with 166 additions and 38 deletions
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27
src/ctl.c
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@@ -148,6 +148,7 @@ CTL_PROTO(prof_thread_active_init)
CTL_PROTO(prof_active)
CTL_PROTO(prof_dump)
CTL_PROTO(prof_gdump)
CTL_PROTO(prof_dump_prefix)
CTL_PROTO(prof_reset)
CTL_PROTO(prof_interval)
CTL_PROTO(lg_prof_sample)
@@ -413,6 +414,7 @@ static const ctl_named_node_t prof_node[] = {
{NAME("active"), CTL(prof_active)},
{NAME("dump"), CTL(prof_dump)},
{NAME("gdump"), CTL(prof_gdump)},
{NAME("dump_prefix"), CTL(prof_dump_prefix)},
{NAME("reset"), CTL(prof_reset)},
{NAME("interval"), CTL(prof_interval)},
{NAME("lg_sample"), CTL(lg_prof_sample)},
@@ -1416,6 +1418,11 @@ ctl_postfork_child(tsdn_t *tsdn) {
malloc_mutex_postfork_child(tsdn, &ctl_mtx);
}
void
ctl_mtx_assert_held(tsdn_t *tsdn) {
malloc_mutex_assert_owner(tsdn, &ctl_mtx);
}
/******************************************************************************/
/* *_ctl() functions. */
@@ -2720,6 +2727,26 @@ label_return:
return ret;
}
static int
prof_dump_prefix_ctl(tsd_t *tsd, const size_t *mib, size_t miblen,
void *oldp, size_t *oldlenp, void *newp, size_t newlen) {
int ret;
const char *prefix = NULL;
if (!config_prof) {
return ENOENT;
}
malloc_mutex_lock(tsd_tsdn(tsd), &ctl_mtx);
WRITEONLY();
WRITE(prefix, const char *);
ret = prof_dump_prefix_set(tsd_tsdn(tsd), prefix) ? EFAULT : 0;
label_return:
malloc_mutex_unlock(tsd_tsdn(tsd), &ctl_mtx);
return ret;
}
static int
prof_reset_ctl(tsd_t *tsd, const size_t *mib, size_t miblen,
void *oldp, size_t *oldlenp, void *newp, size_t newlen) {