project-base/server-skynet-source-3rd-jemalloc
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Handle prof_tdata resurrection.

Browse Source 
Handle prof_tdata resurrection during thread shutdown, similarly to how
tcache and quarantine handle resurrection.
This commit is contained in:
Jason Evans
2012-04-28 18:14:24 -07:00
parent 95ff6aadca
commit 0050a0f7e6
2 changed files with 52 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
include/jemalloc/internal/prof.h
View File

@@ -37,6 +37,14 @@ typedef struct prof_tdata_s prof_tdata_t;
*/
#define PROF_NCTX_LOCKS 1024
/*
* prof_tdata pointers close to NULL are used to encode state information that
* is used for cleaning up during thread shutdown.
*/
#define PROF_TDATA_STATE_REINCARNATED ((prof_tdata_t *)(uintptr_t)1)
#define PROF_TDATA_STATE_PURGATORY ((prof_tdata_t *)(uintptr_t)2)
#define PROF_TDATA_STATE_MAX PROF_TDATA_STATE_PURGATORY
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
@@ -297,8 +305,12 @@ prof_tdata_get(void)
cassert(config_prof);
prof_tdata = *prof_tdata_tsd_get();
if (prof_tdata == NULL)
prof_tdata = prof_tdata_init();
if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) {
if (prof_tdata == NULL)
prof_tdata = prof_tdata_init();
else
prof_tdata = NULL;
}
return (prof_tdata);
}
@@ -382,7 +394,7 @@ prof_sample_accum_update(size_t size)
assert(opt_lg_prof_sample != 0);
prof_tdata = *prof_tdata_tsd_get();
assert(prof_tdata != NULL);
assert((uintptr_t)prof_tdata > (uintptr_t)PROF_TDATA_STATE_MAX);
/* Take care to avoid integer overflow. */
if (size >= prof_tdata->threshold - prof_tdata->accum) {