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Create prof_sys module for reading system thread name

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This commit is contained in:
Yinan Zhang
2020-03-31 09:02:55 -07:00
parent adfd9d7b1d
commit 03ae509f32
10 changed files with 49 additions and 23 deletions
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22
src/prof.c
View File

@@ -8,6 +8,7 @@
#include "jemalloc/internal/prof_data.h"
#include "jemalloc/internal/prof_log.h"
#include "jemalloc/internal/prof_recent.h"
#include "jemalloc/internal/prof_sys.h"
#include "jemalloc/internal/thread_event.h"
/*
@@ -133,27 +134,6 @@ prof_alloc_rollback(tsd_t *tsd, prof_tctx_t *tctx) {
}
}
static int
prof_sys_thread_name_read_impl(char *buf, size_t limit) {
#ifdef JEMALLOC_HAVE_PTHREAD_SETNAME_NP
return pthread_getname_np(pthread_self(), buf, limit);
#else
return ENOSYS;
#endif
}
prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read =
prof_sys_thread_name_read_impl;
static void
prof_sys_thread_name_fetch(tsd_t *tsd) {
#define THREAD_NAME_MAX_LEN 16
char buf[THREAD_NAME_MAX_LEN];
if (!prof_sys_thread_name_read(buf, THREAD_NAME_MAX_LEN)) {
prof_thread_name_set_impl(tsd, buf);
}
#undef THREAD_NAME_MAX_LEN
}
void
prof_malloc_sample_object(tsd_t *tsd, const void *ptr, size_t size,
size_t usize, prof_tctx_t *tctx) {

27
src/prof_sys.c Normal file
View File

@@ -0,0 +1,27 @@
#define JEMALLOC_PROF_SYS_C_
#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/jemalloc_internal_includes.h"
#include "jemalloc/internal/prof_data.h"
#include "jemalloc/internal/prof_sys.h"
static int
prof_sys_thread_name_read_impl(char *buf, size_t limit) {
#ifdef JEMALLOC_HAVE_PTHREAD_SETNAME_NP
return pthread_getname_np(pthread_self(), buf, limit);
#else
return ENOSYS;
#endif
}
prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read =
prof_sys_thread_name_read_impl;
void
prof_sys_thread_name_fetch(tsd_t *tsd) {
#define THREAD_NAME_MAX_LEN 16
char buf[THREAD_NAME_MAX_LEN];
if (!prof_sys_thread_name_read(buf, THREAD_NAME_MAX_LEN)) {
prof_thread_name_set_impl(tsd, buf);
}
#undef THREAD_NAME_MAX_LEN
}