lihao/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-23 13:13:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Allow setting a dump hook

Browse Source 
If users want to be notified when a heap dump occurs, they can set this hook.
This commit is contained in:
Alex Lapenkou
2021-09-01 13:00:01 -07:00
committed by Alexander Lapenkov
parent f7d46b8119
commit a9031a0970
6 changed files with 178 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/ctl.c
View File

@@ -306,6 +306,7 @@ CTL_PROTO(stats_zero_reallocs)
CTL_PROTO(experimental_hooks_install)
CTL_PROTO(experimental_hooks_remove)
CTL_PROTO(experimental_hooks_prof_backtrace)
CTL_PROTO(experimental_hooks_prof_dump)
CTL_PROTO(experimental_thread_activity_callback)
CTL_PROTO(experimental_utilization_query)
CTL_PROTO(experimental_utilization_batch_query)
@@ -835,7 +836,8 @@ static const ctl_named_node_t stats_node[] = {
static const ctl_named_node_t experimental_hooks_node[] = {
{NAME("install"), CTL(experimental_hooks_install)},
{NAME("remove"), CTL(experimental_hooks_remove)},
{NAME("prof_backtrace"), CTL(experimental_hooks_prof_backtrace)}
{NAME("prof_backtrace"), CTL(experimental_hooks_prof_backtrace)},
{NAME("prof_dump"), CTL(experimental_hooks_prof_dump)},
};
static const ctl_named_node_t experimental_thread_node[] = {
@@ -3362,6 +3364,34 @@ label_return:
return ret;
}
static int
experimental_hooks_prof_dump_ctl(tsd_t *tsd, const size_t *mib,
size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) {
int ret;
if (oldp == NULL && newp == NULL) {
ret = EINVAL;
goto label_return;
}
if (oldp != NULL) {
prof_dump_hook_t old_hook =
prof_dump_hook_get();
READ(old_hook, prof_dump_hook_t);
}
if (newp != NULL) {
if (!opt_prof) {
ret = ENOENT;
goto label_return;
}
prof_dump_hook_t new_hook JEMALLOC_CC_SILENCE_INIT(NULL);
WRITE(new_hook, prof_dump_hook_t);
prof_dump_hook_set(new_hook);
}
ret = 0;
label_return:
return ret;
}
/******************************************************************************/
CTL_RO_CGEN(config_stats, stats_allocated, ctl_stats->allocated, size_t)