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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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1
Makefile.in
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@ -133,6 +133,7 @@ C_SRCS := $(srcroot)src/jemalloc.c \
$(srcroot)src/prof_data.c \
$(srcroot)src/prof_log.c \
$(srcroot)src/prof_recent.c \
$(srcroot)src/prof_sys.c \
$(srcroot)src/rtree.c \
$(srcroot)src/safety_check.c \
$(srcroot)src/sc.c \

2
include/jemalloc/internal/prof_externs.h
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@ -90,8 +90,6 @@ uint64_t prof_sample_postponed_event_wait(tsd_t *tsd);
void prof_sample_event_handler(tsd_t *tsd, uint64_t elapsed);
/* Used by unit tests. */
typedef int (prof_sys_thread_name_read_t)(char *buf, size_t limit);
extern prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read;
typedef int (prof_dump_open_file_t)(const char *, int);
extern prof_dump_open_file_t *JET_MUTABLE prof_dump_open_file;
typedef ssize_t (prof_dump_write_file_t)(int, const void *, size_t);

10
include/jemalloc/internal/prof_sys.h Normal file
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@ -0,0 +1,10 @@
#ifndef JEMALLOC_INTERNAL_PROF_SYS_H
#define JEMALLOC_INTERNAL_PROF_SYS_H
void prof_sys_thread_name_fetch(tsd_t *tsd);
/* Used in unit tests. */
typedef int (prof_sys_thread_name_read_t)(char *buf, size_t limit);
extern prof_sys_thread_name_read_t *JET_MUTABLE prof_sys_thread_name_read;
#endif /* JEMALLOC_INTERNAL_PROF_SYS_H */

1
msvc/projects/vc2015/jemalloc/jemalloc.vcxproj
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@ -74,6 +74,7 @@
<ClCompile Include="..\..\..\..\src\prof_data.c" />
<ClCompile Include="..\..\..\..\src\prof_log.c" />
<ClCompile Include="..\..\..\..\src\prof_recent.c" />
<ClCompile Include="..\..\..\..\src\prof_sys.c" />
<ClCompile Include="..\..\..\..\src\rtree.c" />
<ClCompile Include="..\..\..\..\src\safety_check.c" />
<ClCompile Include="..\..\..\..\src\sc.c" />

3
msvc/projects/vc2015/jemalloc/jemalloc.vcxproj.filters
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@ -106,6 +106,9 @@
<ClCompile Include="..\..\..\..\src\prof_recent.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\..\..\src\prof_sys.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\..\..\src\rtree.c">
<Filter>Source Files</Filter>
</ClCompile>

1
msvc/projects/vc2017/jemalloc/jemalloc.vcxproj
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@ -74,6 +74,7 @@
<ClCompile Include="..\..\..\..\src\prof_data.c" />
<ClCompile Include="..\..\..\..\src\prof_log.c" />
<ClCompile Include="..\..\..\..\src\prof_recent.c" />
<ClCompile Include="..\..\..\..\src\prof_sys.c" />
<ClCompile Include="..\..\..\..\src\rtree.c" />
<ClCompile Include="..\..\..\..\src\safety_check.c" />
<ClCompile Include="..\..\..\..\src\sc.c" />

3
msvc/projects/vc2017/jemalloc/jemalloc.vcxproj.filters
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@ -106,6 +106,9 @@
<ClCompile Include="..\..\..\..\src\prof_recent.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\..\..\src\prof_sys.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\..\..\src\rtree.c">
<Filter>Source Files</Filter>
</ClCompile>

22
src/prof.c
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@ -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
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@ -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
}

2
test/unit/prof_sys_thread_name.c
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@ -1,5 +1,7 @@
#include "test/jemalloc_test.h"
#include "jemalloc/internal/prof_sys.h"
static const char *test_thread_name = "test_name";
static int