Linux vmi284606.contaboserver.net 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64
Apache/2.4.57 (Ubuntu)
: 167.86.127.34 | : 216.73.217.31
Cant Read [ /etc/named.conf ]
7.2.24-0ubuntu0.18.04.17
root
Terminal
AUTO ROOT
Adminer
Backdoor Destroyer
Linux Exploit
Lock Shell
Lock File
Create User
CREATE RDP
PHP Mailer
BACKCONNECT
UNLOCK SHELL
HASH IDENTIFIER
README
+ Create Folder
+ Create File
/
usr /
local /
go /
src /
runtime /
[ HOME SHELL ]
Name
Size
Permission
Action
cgo
[ DIR ]
drwxr-xr-x
debug
[ DIR ]
drwxr-xr-x
internal
[ DIR ]
drwxr-xr-x
msan
[ DIR ]
drwxr-xr-x
pprof
[ DIR ]
drwxr-xr-x
race
[ DIR ]
drwxr-xr-x
testdata
[ DIR ]
drwxr-xr-x
trace
[ DIR ]
drwxr-xr-x
HACKING.md
13.07
KB
-rw-r--r--
Makefile
178
B
-rw-r--r--
alg.go
10.18
KB
-rw-r--r--
asm.s
1.16
KB
-rw-r--r--
asm_386.s
40.2
KB
-rw-r--r--
asm_amd64.s
45.78
KB
-rw-r--r--
asm_arm.s
30.89
KB
-rw-r--r--
asm_arm64.s
33.12
KB
-rw-r--r--
asm_mips64x.s
22.45
KB
-rw-r--r--
asm_mipsx.s
24.72
KB
-rw-r--r--
asm_ppc64x.h
1023
B
-rw-r--r--
asm_ppc64x.s
29.39
KB
-rw-r--r--
asm_riscv64.s
17.38
KB
-rw-r--r--
asm_s390x.s
26.35
KB
-rw-r--r--
asm_wasm.s
9.65
KB
-rw-r--r--
atomic_arm64.s
259
B
-rw-r--r--
atomic_mips64x.s
296
B
-rw-r--r--
atomic_mipsx.s
258
B
-rw-r--r--
atomic_pointer.go
2.62
KB
-rw-r--r--
atomic_ppc64x.s
433
B
-rw-r--r--
atomic_riscv64.s
307
B
-rw-r--r--
auxv_none.go
358
B
-rw-r--r--
callers_test.go
7.7
KB
-rw-r--r--
cgo.go
2.01
KB
-rw-r--r--
cgo_mmap.go
2.38
KB
-rw-r--r--
cgo_ppc64x.go
411
B
-rw-r--r--
cgo_sigaction.go
3.09
KB
-rw-r--r--
cgocall.go
21.38
KB
-rw-r--r--
cgocallback.go
317
B
-rw-r--r--
cgocheck.go
6.8
KB
-rw-r--r--
chan.go
19.71
KB
-rw-r--r--
chan_test.go
21.27
KB
-rw-r--r--
chanbarrier_test.go
1.4
KB
-rw-r--r--
checkptr.go
2.5
KB
-rw-r--r--
checkptr_test.go
1.27
KB
-rw-r--r--
closure_test.go
936
B
-rw-r--r--
compiler.go
413
B
-rw-r--r--
complex.go
1.59
KB
-rw-r--r--
complex_test.go
1.05
KB
-rw-r--r--
cpuflags.go
740
B
-rw-r--r--
cpuflags_amd64.go
533
B
-rw-r--r--
cpuprof.go
6.65
KB
-rw-r--r--
cputicks.go
478
B
-rw-r--r--
crash_cgo_test.go
13.71
KB
-rw-r--r--
crash_nonunix_test.go
385
B
-rw-r--r--
crash_test.go
20.24
KB
-rw-r--r--
crash_unix_test.go
8.89
KB
-rw-r--r--
debug.go
1.63
KB
-rw-r--r--
debug_test.go
6.16
KB
-rw-r--r--
debugcall.go
2.83
KB
-rw-r--r--
debuglog.go
17.08
KB
-rw-r--r--
debuglog_off.go
356
B
-rw-r--r--
debuglog_on.go
1.09
KB
-rw-r--r--
debuglog_test.go
4.56
KB
-rw-r--r--
defer_test.go
9.98
KB
-rw-r--r--
defs1_linux.go
844
B
-rw-r--r--
defs1_netbsd_386.go
2.84
KB
-rw-r--r--
defs1_netbsd_amd64.go
3.07
KB
-rw-r--r--
defs1_netbsd_arm.go
2.96
KB
-rw-r--r--
defs1_netbsd_arm64.go
3.18
KB
-rw-r--r--
defs1_solaris_amd64.go
4.02
KB
-rw-r--r--
defs2_linux.go
3.51
KB
-rw-r--r--
defs3_linux.go
1.09
KB
-rw-r--r--
defs_aix.go
4.16
KB
-rw-r--r--
defs_aix_ppc64.go
3.61
KB
-rw-r--r--
defs_arm_linux.go
2.67
KB
-rw-r--r--
defs_darwin.go
3.84
KB
-rw-r--r--
defs_darwin_386.go
5.98
KB
-rw-r--r--
defs_darwin_amd64.go
6.07
KB
-rw-r--r--
defs_darwin_arm.go
3.78
KB
-rw-r--r--
defs_darwin_arm64.go
3.84
KB
-rw-r--r--
defs_dragonfly.go
2.54
KB
-rw-r--r--
defs_dragonfly_amd64.go
3.25
KB
-rw-r--r--
defs_freebsd.go
3.84
KB
-rw-r--r--
defs_freebsd_386.go
4.35
KB
-rw-r--r--
defs_freebsd_amd64.go
4.62
KB
-rw-r--r--
defs_freebsd_arm.go
3.68
KB
-rw-r--r--
defs_freebsd_arm64.go
4
KB
-rw-r--r--
defs_illumos_amd64.go
285
B
-rw-r--r--
defs_linux.go
3.04
KB
-rw-r--r--
defs_linux_386.go
4.05
KB
-rw-r--r--
defs_linux_amd64.go
4.56
KB
-rw-r--r--
defs_linux_arm.go
3.31
KB
-rw-r--r--
defs_linux_arm64.go
3.23
KB
-rw-r--r--
defs_linux_mips64x.go
3.04
KB
-rw-r--r--
defs_linux_mipsx.go
3.18
KB
-rw-r--r--
defs_linux_ppc64.go
3.28
KB
-rw-r--r--
defs_linux_ppc64le.go
3.28
KB
-rw-r--r--
defs_linux_riscv64.go
3.27
KB
-rw-r--r--
defs_linux_s390x.go
2.76
KB
-rw-r--r--
defs_netbsd.go
2.74
KB
-rw-r--r--
defs_netbsd_386.go
854
B
-rw-r--r--
defs_netbsd_amd64.go
1.01
KB
-rw-r--r--
defs_netbsd_arm.go
763
B
-rw-r--r--
defs_openbsd.go
2.6
KB
-rw-r--r--
defs_openbsd_386.go
2.63
KB
-rw-r--r--
defs_openbsd_amd64.go
2.83
KB
-rw-r--r--
defs_openbsd_arm.go
2.74
KB
-rw-r--r--
defs_openbsd_arm64.go
2.34
KB
-rw-r--r--
defs_plan9_386.go
1.47
KB
-rw-r--r--
defs_plan9_amd64.go
1.66
KB
-rw-r--r--
defs_plan9_arm.go
1.73
KB
-rw-r--r--
defs_solaris.go
3.33
KB
-rw-r--r--
defs_solaris_amd64.go
1003
B
-rw-r--r--
defs_windows.go
2.07
KB
-rw-r--r--
defs_windows_386.go
3.75
KB
-rw-r--r--
defs_windows_amd64.go
4.51
KB
-rw-r--r--
defs_windows_arm.go
3.59
KB
-rw-r--r--
duff_386.s
8.24
KB
-rw-r--r--
duff_amd64.s
5.53
KB
-rw-r--r--
duff_arm.s
7.11
KB
-rw-r--r--
duff_arm64.s
5.25
KB
-rw-r--r--
duff_mips64x.s
11.28
KB
-rw-r--r--
duff_ppc64x.s
2.45
KB
-rw-r--r--
duff_s390x.s
507
B
-rw-r--r--
env_plan9.go
855
B
-rw-r--r--
env_posix.go
1.82
KB
-rw-r--r--
env_test.go
1.28
KB
-rw-r--r--
error.go
7.26
KB
-rw-r--r--
example_test.go
1.34
KB
-rw-r--r--
export_aix_test.go
204
B
-rw-r--r--
export_arm_test.go
226
B
-rw-r--r--
export_darwin_test.go
351
B
-rw-r--r--
export_debug_test.go
5.28
KB
-rw-r--r--
export_debuglog_test.go
1.27
KB
-rw-r--r--
export_futex_test.go
529
B
-rw-r--r--
export_linux_test.go
429
B
-rw-r--r--
export_mmap_test.go
481
B
-rw-r--r--
export_solaris_test.go
282
B
-rw-r--r--
export_test.go
23.58
KB
-rw-r--r--
export_unix_test.go
2.28
KB
-rw-r--r--
export_windows_test.go
652
B
-rw-r--r--
extern.go
11.6
KB
-rw-r--r--
fastlog2.go
1.22
KB
-rw-r--r--
fastlog2_test.go
784
B
-rw-r--r--
fastlog2table.go
904
B
-rw-r--r--
float.go
1.35
KB
-rw-r--r--
funcdata.h
2.44
KB
-rw-r--r--
futex_test.go
2.1
KB
-rw-r--r--
gc_test.go
13.22
KB
-rw-r--r--
gcinfo_test.go
6.18
KB
-rw-r--r--
go_tls.h
366
B
-rw-r--r--
hash32.go
2.51
KB
-rw-r--r--
hash64.go
2.6
KB
-rw-r--r--
hash_test.go
17.54
KB
-rw-r--r--
heapdump.go
17.1
KB
-rw-r--r--
iface.go
15.78
KB
-rw-r--r--
iface_test.go
6.81
KB
-rw-r--r--
lfstack.go
1.77
KB
-rw-r--r--
lfstack_32bit.go
522
B
-rw-r--r--
lfstack_64bit.go
2.15
KB
-rw-r--r--
lfstack_test.go
2.78
KB
-rw-r--r--
libfuzzer.go
2.58
KB
-rw-r--r--
libfuzzer_amd64.s
940
B
-rw-r--r--
libfuzzer_arm64.s
751
B
-rw-r--r--
lock_futex.go
5.06
KB
-rw-r--r--
lock_js.go
5.45
KB
-rw-r--r--
lock_sema.go
6.6
KB
-rw-r--r--
malloc.go
48.32
KB
-rw-r--r--
malloc_test.go
9.37
KB
-rw-r--r--
map.go
42.13
KB
-rw-r--r--
map_benchmark_test.go
10.16
KB
-rw-r--r--
map_fast32.go
12.18
KB
-rw-r--r--
map_fast64.go
12.37
KB
-rw-r--r--
map_faststr.go
13.82
KB
-rw-r--r--
map_test.go
27.11
KB
-rw-r--r--
mbarrier.go
12.14
KB
-rw-r--r--
mbitmap.go
67.53
KB
-rw-r--r--
mcache.go
5.61
KB
-rw-r--r--
mcentral.go
7.14
KB
-rw-r--r--
mem_aix.go
1.93
KB
-rw-r--r--
mem_bsd.go
2.05
KB
-rw-r--r--
mem_darwin.go
1.88
KB
-rw-r--r--
mem_js.go
2.32
KB
-rw-r--r--
mem_linux.go
5.58
KB
-rw-r--r--
mem_plan9.go
4.53
KB
-rw-r--r--
mem_windows.go
3.86
KB
-rw-r--r--
memclr_386.s
2.4
KB
-rw-r--r--
memclr_amd64.s
3.65
KB
-rw-r--r--
memclr_arm.s
2.44
KB
-rw-r--r--
memclr_arm64.s
3.48
KB
-rw-r--r--
memclr_mips64x.s
785
B
-rw-r--r--
memclr_mipsx.s
1.24
KB
-rw-r--r--
memclr_plan9_386.s
905
B
-rw-r--r--
memclr_plan9_amd64.s
433
B
-rw-r--r--
memclr_ppc64x.s
4.2
KB
-rw-r--r--
memclr_riscv64.s
848
B
-rwxr-xr-x
memclr_s390x.s
1.89
KB
-rw-r--r--
memclr_wasm.s
544
B
-rw-r--r--
memmove_386.s
4.45
KB
-rw-r--r--
memmove_amd64.s
12.33
KB
-rw-r--r--
memmove_arm.s
5.9
KB
-rw-r--r--
memmove_arm64.s
3.56
KB
-rw-r--r--
memmove_linux_amd64_test.go
1.61
KB
-rw-r--r--
memmove_mips64x.s
1.82
KB
-rw-r--r--
memmove_mipsx.s
4.39
KB
-rw-r--r--
memmove_plan9_386.s
3.06
KB
-rw-r--r--
memmove_plan9_amd64.s
3.04
KB
-rw-r--r--
memmove_ppc64x.s
3.33
KB
-rw-r--r--
memmove_riscv64.s
1.81
KB
-rwxr-xr-x
memmove_s390x.s
2.92
KB
-rw-r--r--
memmove_test.go
10.97
KB
-rw-r--r--
memmove_wasm.s
1.74
KB
-rw-r--r--
mfinal.go
14.8
KB
-rw-r--r--
mfinal_test.go
5.85
KB
-rw-r--r--
mfixalloc.go
2.72
KB
-rw-r--r--
mgc.go
74.87
KB
-rw-r--r--
mgcmark.go
46.5
KB
-rw-r--r--
mgcscavenge.go
30.95
KB
-rw-r--r--
mgcscavenge_test.go
12.34
KB
-rw-r--r--
mgcstack.go
10.55
KB
-rw-r--r--
mgcsweep.go
14.79
KB
-rw-r--r--
mgcsweepbuf.go
5.98
KB
-rw-r--r--
mgcwork.go
14.24
KB
-rw-r--r--
mheap.go
61.5
KB
-rw-r--r--
mkduff.go
6.23
KB
-rw-r--r--
mkfastlog2table.go
1.32
KB
-rw-r--r--
mkpreempt.go
13.33
KB
-rw-r--r--
mksizeclasses.go
8.62
KB
-rw-r--r--
mmap.go
847
B
-rw-r--r--
mpagealloc.go
35.25
KB
-rw-r--r--
mpagealloc_32bit.go
3.75
KB
-rw-r--r--
mpagealloc_64bit.go
6.51
KB
-rw-r--r--
mpagealloc_test.go
28.88
KB
-rw-r--r--
mpagecache.go
5.03
KB
-rw-r--r--
mpagecache_test.go
9.93
KB
-rw-r--r--
mpallocbits.go
10.69
KB
-rw-r--r--
mpallocbits_test.go
12.93
KB
-rw-r--r--
mprof.go
24.06
KB
-rw-r--r--
mranges.go
5.41
KB
-rw-r--r--
msan.go
1.39
KB
-rw-r--r--
msan0.go
647
B
-rw-r--r--
msan_amd64.s
2.03
KB
-rw-r--r--
msan_arm64.s
1.69
KB
-rw-r--r--
msize.go
785
B
-rw-r--r--
mstats.go
22.62
KB
-rw-r--r--
mwbbuf.go
10.07
KB
-rw-r--r--
nbpipe_fcntl_libc_test.go
463
B
-rw-r--r--
nbpipe_fcntl_unix_test.go
445
B
-rw-r--r--
nbpipe_pipe.go
411
B
-rw-r--r--
nbpipe_pipe2.go
509
B
-rw-r--r--
nbpipe_test.go
2.17
KB
-rw-r--r--
net_plan9.go
645
B
-rw-r--r--
netpoll.go
14.46
KB
-rw-r--r--
netpoll_aix.go
4.64
KB
-rw-r--r--
netpoll_epoll.go
4
KB
-rw-r--r--
netpoll_fake.go
648
B
-rw-r--r--
netpoll_kqueue.go
4.39
KB
-rw-r--r--
netpoll_solaris.go
10.56
KB
-rw-r--r--
netpoll_stub.go
1.3
KB
-rw-r--r--
netpoll_windows.go
4.51
KB
-rw-r--r--
norace_linux_test.go
888
B
-rw-r--r--
norace_test.go
979
B
-rw-r--r--
numcpu_freebsd_test.go
381
B
-rw-r--r--
os2_aix.go
20.67
KB
-rw-r--r--
os2_freebsd.go
302
B
-rw-r--r--
os2_openbsd.go
296
B
-rw-r--r--
os2_plan9.go
1.48
KB
-rw-r--r--
os2_solaris.go
320
B
-rw-r--r--
os3_plan9.go
3.99
KB
-rw-r--r--
os3_solaris.go
16.92
KB
-rw-r--r--
os_aix.go
8.29
KB
-rw-r--r--
os_android.go
463
B
-rw-r--r--
os_darwin.go
10.59
KB
-rw-r--r--
os_darwin_arm.go
749
B
-rw-r--r--
os_darwin_arm64.go
416
B
-rw-r--r--
os_dragonfly.go
6.2
KB
-rw-r--r--
os_freebsd.go
10.97
KB
-rw-r--r--
os_freebsd2.go
478
B
-rw-r--r--
os_freebsd_amd64.go
529
B
-rw-r--r--
os_freebsd_arm.go
1.32
KB
-rw-r--r--
os_freebsd_arm64.go
2.97
KB
-rw-r--r--
os_freebsd_noauxv.go
254
B
-rw-r--r--
os_illumos.go
3.93
KB
-rw-r--r--
os_js.go
2.93
KB
-rw-r--r--
os_linux.go
13.16
KB
-rw-r--r--
os_linux_arm.go
1.35
KB
-rw-r--r--
os_linux_arm64.go
1.02
KB
-rw-r--r--
os_linux_be64.go
816
B
-rw-r--r--
os_linux_generic.go
916
B
-rw-r--r--
os_linux_mips64x.go
999
B
-rw-r--r--
os_linux_mipsx.go
1.05
KB
-rw-r--r--
os_linux_noauxv.go
307
B
-rw-r--r--
os_linux_novdso.go
298
B
-rw-r--r--
os_linux_ppc64x.go
527
B
-rw-r--r--
os_linux_riscv64.go
198
B
-rw-r--r--
os_linux_s390x.go
455
B
-rw-r--r--
os_linux_x86.go
2.69
KB
-rw-r--r--
os_netbsd.go
8.49
KB
-rw-r--r--
os_netbsd_386.go
588
B
-rw-r--r--
os_netbsd_amd64.go
585
B
-rw-r--r--
os_netbsd_arm.go
1.13
KB
-rw-r--r--
os_netbsd_arm64.go
827
B
-rw-r--r--
os_nonopenbsd.go
436
B
-rw-r--r--
os_only_solaris.go
356
B
-rw-r--r--
os_openbsd.go
7.81
KB
-rw-r--r--
os_openbsd_arm.go
749
B
-rw-r--r--
os_openbsd_arm64.go
714
B
-rw-r--r--
os_plan9.go
9.3
KB
-rw-r--r--
os_plan9_arm.go
462
B
-rw-r--r--
os_solaris.go
6.49
KB
-rw-r--r--
os_windows.go
37.01
KB
-rw-r--r--
os_windows_arm.go
511
B
-rw-r--r--
panic.go
42.23
KB
-rw-r--r--
panic32.go
4.79
KB
-rw-r--r--
plugin.go
4.16
KB
-rw-r--r--
preempt.go
14.72
KB
-rw-r--r--
preempt_386.s
983
B
-rw-r--r--
preempt_amd64.s
1.62
KB
-rw-r--r--
preempt_arm.s
1.48
KB
-rw-r--r--
preempt_arm64.s
2.8
KB
-rw-r--r--
preempt_mips64x.s
2.71
KB
-rw-r--r--
preempt_mipsx.s
2.68
KB
-rw-r--r--
preempt_nonwindows.go
289
B
-rw-r--r--
preempt_ppc64x.s
2.71
KB
-rw-r--r--
preempt_riscv64.s
197
B
-rw-r--r--
preempt_s390x.s
1.01
KB
-rw-r--r--
preempt_wasm.s
176
B
-rw-r--r--
print.go
5.98
KB
-rw-r--r--
proc.go
149.75
KB
-rw-r--r--
proc_runtime_test.go
820
B
-rw-r--r--
proc_test.go
22.89
KB
-rw-r--r--
profbuf.go
18.26
KB
-rw-r--r--
profbuf_test.go
8.65
KB
-rw-r--r--
proflabel.go
1.52
KB
-rw-r--r--
race.go
18.11
KB
-rw-r--r--
race0.go
2.61
KB
-rw-r--r--
race_amd64.s
13.59
KB
-rw-r--r--
race_arm64.s
13.53
KB
-rw-r--r--
race_ppc64le.s
17.93
KB
-rw-r--r--
rand_test.go
783
B
-rw-r--r--
rdebug.go
553
B
-rw-r--r--
relax_stub.go
597
B
-rw-r--r--
rt0_aix_ppc64.s
4.33
KB
-rw-r--r--
rt0_android_386.s
822
B
-rw-r--r--
rt0_android_amd64.s
754
B
-rw-r--r--
rt0_android_arm.s
843
B
-rw-r--r--
rt0_android_arm64.s
941
B
-rw-r--r--
rt0_darwin_386.s
452
B
-rw-r--r--
rt0_darwin_amd64.s
399
B
-rw-r--r--
rt0_darwin_arm.s
290
B
-rw-r--r--
rt0_darwin_arm64.s
2.32
KB
-rw-r--r--
rt0_dragonfly_amd64.s
448
B
-rw-r--r--
rt0_freebsd_386.s
454
B
-rw-r--r--
rt0_freebsd_amd64.s
442
B
-rw-r--r--
rt0_freebsd_arm.s
298
B
-rw-r--r--
rt0_freebsd_arm64.s
2.46
KB
-rw-r--r--
rt0_illumos_amd64.s
311
B
-rw-r--r--
rt0_js_wasm.s
2.3
KB
-rw-r--r--
rt0_linux_386.s
450
B
-rw-r--r--
rt0_linux_amd64.s
307
B
-rw-r--r--
rt0_linux_arm.s
1007
B
-rw-r--r--
rt0_linux_arm64.s
2.39
KB
-rw-r--r--
rt0_linux_mips64x.s
1015
B
-rw-r--r--
rt0_linux_mipsx.s
798
B
-rw-r--r--
rt0_linux_ppc64.s
705
B
-rw-r--r--
rt0_linux_ppc64le.s
3.72
KB
-rw-r--r--
rt0_linux_riscv64.s
370
B
-rw-r--r--
rt0_linux_s390x.s
676
B
-rw-r--r--
rt0_netbsd_386.s
452
B
-rw-r--r--
rt0_netbsd_amd64.s
309
B
-rw-r--r--
rt0_netbsd_arm.s
296
B
-rw-r--r--
rt0_netbsd_arm64.s
2.39
KB
-rw-r--r--
rt0_openbsd_386.s
454
B
-rw-r--r--
rt0_openbsd_amd64.s
311
B
-rw-r--r--
rt0_openbsd_arm.s
298
B
-rw-r--r--
rt0_openbsd_arm64.s
2.42
KB
-rw-r--r--
rt0_plan9_386.s
523
B
-rw-r--r--
rt0_plan9_amd64.s
481
B
-rw-r--r--
rt0_plan9_arm.s
397
B
-rw-r--r--
rt0_solaris_amd64.s
311
B
-rw-r--r--
rt0_windows_386.s
1.28
KB
-rw-r--r--
rt0_windows_amd64.s
1.15
KB
-rw-r--r--
rt0_windows_arm.s
386
B
-rw-r--r--
runtime-gdb.py
14.83
KB
-rw-r--r--
runtime-gdb_test.go
16.85
KB
-rw-r--r--
runtime-lldb_test.go
5.09
KB
-rw-r--r--
runtime.go
1.42
KB
-rw-r--r--
runtime1.go
11.97
KB
-rw-r--r--
runtime2.go
37.85
KB
-rw-r--r--
runtime_linux_test.go
1.46
KB
-rw-r--r--
runtime_mmap_test.go
1.82
KB
-rw-r--r--
runtime_test.go
7.81
KB
-rw-r--r--
runtime_unix_test.go
1.2
KB
-rw-r--r--
rwmutex.go
3.4
KB
-rw-r--r--
rwmutex_test.go
4.03
KB
-rw-r--r--
select.go
13.24
KB
-rw-r--r--
sema.go
15.95
KB
-rw-r--r--
sema_test.go
2.41
KB
-rw-r--r--
semasleep_test.go
1.62
KB
-rw-r--r--
sigaction.go
460
B
-rw-r--r--
signal_386.go
2.14
KB
-rw-r--r--
signal_aix_ppc64.go
3.55
KB
-rw-r--r--
signal_amd64.go
2.56
KB
-rw-r--r--
signal_arm.go
2.63
KB
-rw-r--r--
signal_arm64.go
3.12
KB
-rw-r--r--
signal_darwin.go
2.13
KB
-rw-r--r--
signal_darwin_386.go
2.33
KB
-rw-r--r--
signal_darwin_amd64.go
3.85
KB
-rw-r--r--
signal_darwin_arm.go
2.71
KB
-rw-r--r--
signal_darwin_arm64.go
3.6
KB
-rw-r--r--
signal_dragonfly.go
2.17
KB
-rw-r--r--
signal_dragonfly_amd64.go
2.01
KB
-rw-r--r--
signal_freebsd.go
2.2
KB
-rw-r--r--
signal_freebsd_386.go
1.55
KB
-rw-r--r--
signal_freebsd_amd64.go
2.03
KB
-rw-r--r--
signal_freebsd_arm.go
2.18
KB
-rw-r--r--
signal_freebsd_arm64.go
3.23
KB
-rw-r--r--
signal_linux_386.go
1.59
KB
-rw-r--r--
signal_linux_amd64.go
2.05
KB
-rw-r--r--
signal_linux_arm.go
2.13
KB
-rw-r--r--
signal_linux_arm64.go
2.95
KB
-rw-r--r--
signal_linux_mips64x.go
3.35
KB
-rw-r--r--
signal_linux_mipsx.go
3.67
KB
-rw-r--r--
signal_linux_ppc64x.go
3.42
KB
-rw-r--r--
signal_linux_riscv64.go
2.92
KB
-rw-r--r--
signal_linux_s390x.go
4.45
KB
-rw-r--r--
signal_mips64x.go
3.16
KB
-rw-r--r--
signal_mipsx.go
3.05
KB
-rw-r--r--
signal_netbsd.go
2.18
KB
-rw-r--r--
signal_netbsd_386.go
1.76
KB
-rw-r--r--
signal_netbsd_amd64.go
2.33
KB
-rw-r--r--
signal_netbsd_arm.go
2.3
KB
-rw-r--r--
signal_netbsd_arm64.go
3.4
KB
-rw-r--r--
signal_openbsd.go
2.15
KB
-rw-r--r--
signal_openbsd_386.go
1.58
KB
-rw-r--r--
signal_openbsd_amd64.go
2.04
KB
-rw-r--r--
signal_openbsd_arm.go
2.12
KB
-rw-r--r--
signal_openbsd_arm64.go
3.38
KB
-rw-r--r--
signal_plan9.go
1.93
KB
-rw-r--r--
signal_ppc64x.go
3.61
KB
-rw-r--r--
signal_riscv64.go
2.45
KB
-rw-r--r--
signal_solaris.go
4.5
KB
-rw-r--r--
signal_solaris_amd64.go
2.47
KB
-rw-r--r--
signal_unix.go
35.95
KB
-rw-r--r--
signal_windows.go
8.54
KB
-rw-r--r--
signal_windows_test.go
1.6
KB
-rw-r--r--
sigqueue.go
7.69
KB
-rw-r--r--
sigqueue_note.go
654
B
-rw-r--r--
sigqueue_plan9.go
3.31
KB
-rw-r--r--
sigtab_aix.go
11.3
KB
-rw-r--r--
sigtab_linux_generic.go
3.49
KB
-rw-r--r--
sigtab_linux_mipsx.go
5.89
KB
-rw-r--r--
sizeclasses.go
7.9
KB
-rw-r--r--
sizeof_test.go
839
B
-rw-r--r--
slice.go
6.88
KB
-rw-r--r--
slice_test.go
8.78
KB
-rw-r--r--
softfloat64.go
10.7
KB
-rw-r--r--
softfloat64_test.go
4.05
KB
-rw-r--r--
stack.go
39.14
KB
-rw-r--r--
stack_test.go
19.9
KB
-rw-r--r--
string.go
11.52
KB
-rw-r--r--
string_test.go
10.35
KB
-rw-r--r--
stubs.go
13.08
KB
-rw-r--r--
stubs2.go
1.04
KB
-rw-r--r--
stubs3.go
289
B
-rw-r--r--
stubs32.go
393
B
-rw-r--r--
stubs_386.go
490
B
-rw-r--r--
stubs_amd64.go
348
B
-rw-r--r--
stubs_arm.go
454
B
-rw-r--r--
stubs_arm64.go
256
B
-rw-r--r--
stubs_linux.go
646
B
-rw-r--r--
stubs_mips64x.go
283
B
-rw-r--r--
stubs_mipsx.go
279
B
-rw-r--r--
stubs_nonlinux.go
297
B
-rw-r--r--
stubs_ppc64x.go
296
B
-rw-r--r--
stubs_s390x.go
256
B
-rw-r--r--
symtab.go
28.32
KB
-rw-r--r--
symtab_test.go
4.1
KB
-rw-r--r--
sys_aix_ppc64.s
7.17
KB
-rw-r--r--
sys_arm.go
521
B
-rw-r--r--
sys_arm64.go
469
B
-rw-r--r--
sys_darwin.go
15.96
KB
-rw-r--r--
sys_darwin_32.go
533
B
-rw-r--r--
sys_darwin_386.s
18.55
KB
-rw-r--r--
sys_darwin_64.go
513
B
-rw-r--r--
sys_darwin_amd64.s
18.07
KB
-rw-r--r--
sys_darwin_arm.s
13.7
KB
-rw-r--r--
sys_darwin_arm64.s
15.84
KB
-rw-r--r--
sys_dragonfly_amd64.s
8.32
KB
-rw-r--r--
sys_freebsd_386.s
8.92
KB
-rw-r--r--
sys_freebsd_amd64.s
10.72
KB
-rw-r--r--
sys_freebsd_arm.s
10.64
KB
-rw-r--r--
sys_freebsd_arm64.s
10.75
KB
-rw-r--r--
sys_linux_386.s
17.57
KB
-rw-r--r--
sys_linux_amd64.s
17.07
KB
-rw-r--r--
sys_linux_arm.s
14.9
KB
-rw-r--r--
sys_linux_arm64.s
14.32
KB
-rw-r--r--
sys_linux_mips64x.s
12
KB
-rw-r--r--
sys_linux_mipsx.s
11.13
KB
-rw-r--r--
sys_linux_ppc64x.s
14.71
KB
-rw-r--r--
sys_linux_riscv64.s
10.38
KB
-rw-r--r--
sys_linux_s390x.s
10.52
KB
-rw-r--r--
sys_mips64x.go
496
B
-rw-r--r--
sys_mipsx.go
492
B
-rw-r--r--
sys_netbsd_386.s
10.04
KB
-rw-r--r--
sys_netbsd_amd64.s
10.03
KB
-rw-r--r--
sys_netbsd_arm.s
10.85
KB
-rw-r--r--
sys_netbsd_arm64.s
10.13
KB
-rw-r--r--
sys_nonppc64x.go
241
B
-rw-r--r--
sys_openbsd_386.s
9.1
KB
-rw-r--r--
sys_openbsd_amd64.s
8.83
KB
-rw-r--r--
sys_openbsd_arm.s
9.63
KB
-rw-r--r--
sys_openbsd_arm64.s
9.55
KB
-rw-r--r--
sys_plan9_386.s
4.41
KB
-rw-r--r--
sys_plan9_amd64.s
4.47
KB
-rw-r--r--
sys_plan9_arm.s
7.03
KB
-rw-r--r--
sys_ppc64x.go
528
B
-rw-r--r--
sys_riscv64.go
469
B
-rw-r--r--
sys_s390x.go
469
B
-rw-r--r--
sys_solaris_amd64.s
6.69
KB
-rw-r--r--
sys_wasm.go
806
B
-rw-r--r--
sys_wasm.s
2.48
KB
-rw-r--r--
sys_windows_386.s
11.55
KB
-rw-r--r--
sys_windows_amd64.s
12.14
KB
-rw-r--r--
sys_windows_arm.s
18.38
KB
-rw-r--r--
sys_x86.go
624
B
-rw-r--r--
syscall2_solaris.go
1.73
KB
-rw-r--r--
syscall_aix.go
5.99
KB
-rw-r--r--
syscall_solaris.go
8.26
KB
-rw-r--r--
syscall_windows.go
6.83
KB
-rw-r--r--
syscall_windows_test.go
27.09
KB
-rw-r--r--
textflag.h
1.46
KB
-rw-r--r--
time.go
29.12
KB
-rw-r--r--
time_fake.go
2.67
KB
-rw-r--r--
time_nofake.go
631
B
-rw-r--r--
time_test.go
1.9
KB
-rw-r--r--
timeasm.go
382
B
-rw-r--r--
timestub.go
497
B
-rw-r--r--
timestub2.go
309
B
-rw-r--r--
tls_arm.s
3.37
KB
-rw-r--r--
tls_arm64.h
985
B
-rw-r--r--
tls_arm64.s
1.07
KB
-rw-r--r--
tls_mips64x.s
729
B
-rw-r--r--
tls_mipsx.s
705
B
-rw-r--r--
tls_ppc64x.s
1.51
KB
-rw-r--r--
tls_riscv64.s
454
B
-rw-r--r--
tls_s390x.s
1.55
KB
-rw-r--r--
trace.go
37.73
KB
-rw-r--r--
traceback.go
44.11
KB
-rw-r--r--
type.go
18.27
KB
-rw-r--r--
typekind.go
742
B
-rw-r--r--
utf8.go
3.39
KB
-rw-r--r--
vdso_elf32.go
2.76
KB
-rw-r--r--
vdso_elf64.go
2.79
KB
-rw-r--r--
vdso_freebsd.go
2.44
KB
-rw-r--r--
vdso_freebsd_arm.go
454
B
-rw-r--r--
vdso_freebsd_arm64.go
443
B
-rw-r--r--
vdso_freebsd_x86.go
1.85
KB
-rw-r--r--
vdso_in_none.go
379
B
-rw-r--r--
vdso_linux.go
7.68
KB
-rw-r--r--
vdso_linux_386.go
669
B
-rw-r--r--
vdso_linux_amd64.go
748
B
-rw-r--r--
vdso_linux_arm.go
669
B
-rw-r--r--
vdso_linux_arm64.go
670
B
-rw-r--r--
vdso_linux_mips64x.go
851
B
-rw-r--r--
vdso_linux_ppc64x.go
673
B
-rw-r--r--
vlop_386.s
2.02
KB
-rw-r--r--
vlop_arm.s
7.06
KB
-rw-r--r--
vlop_arm_test.go
3.75
KB
-rw-r--r--
vlrt.go
6.09
KB
-rw-r--r--
wincallback.go
2.53
KB
-rw-r--r--
write_err.go
290
B
-rw-r--r--
write_err_android.go
4.65
KB
-rw-r--r--
zcallback_windows.go
155
B
-rw-r--r--
zcallback_windows.s
63.02
KB
-rw-r--r--
zcallback_windows_arm.s
89.32
KB
-rw-r--r--
Delete
Unzip
Zip
${this.title}
Close
Code Editor : sema.go
// Copyright 2009 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Semaphore implementation exposed to Go. // Intended use is provide a sleep and wakeup // primitive that can be used in the contended case // of other synchronization primitives. // Thus it targets the same goal as Linux's futex, // but it has much simpler semantics. // // That is, don't think of these as semaphores. // Think of them as a way to implement sleep and wakeup // such that every sleep is paired with a single wakeup, // even if, due to races, the wakeup happens before the sleep. // // See Mullender and Cox, ``Semaphores in Plan 9,'' // https://swtch.com/semaphore.pdf package runtime import ( "internal/cpu" "runtime/internal/atomic" "unsafe" ) // Asynchronous semaphore for sync.Mutex. // A semaRoot holds a balanced tree of sudog with distinct addresses (s.elem). // Each of those sudog may in turn point (through s.waitlink) to a list // of other sudogs waiting on the same address. // The operations on the inner lists of sudogs with the same address // are all O(1). The scanning of the top-level semaRoot list is O(log n), // where n is the number of distinct addresses with goroutines blocked // on them that hash to the given semaRoot. // See golang.org/issue/17953 for a program that worked badly // before we introduced the second level of list, and test/locklinear.go // for a test that exercises this. type semaRoot struct { lock mutex treap *sudog // root of balanced tree of unique waiters. nwait uint32 // Number of waiters. Read w/o the lock. } // Prime to not correlate with any user patterns. const semTabSize = 251 var semtable [semTabSize]struct { root semaRoot pad [cpu.CacheLinePadSize - unsafe.Sizeof(semaRoot{})]byte } //go:linkname sync_runtime_Semacquire sync.runtime_Semacquire func sync_runtime_Semacquire(addr *uint32) { semacquire1(addr, false, semaBlockProfile, 0) } //go:linkname poll_runtime_Semacquire internal/poll.runtime_Semacquire func poll_runtime_Semacquire(addr *uint32) { semacquire1(addr, false, semaBlockProfile, 0) } //go:linkname sync_runtime_Semrelease sync.runtime_Semrelease func sync_runtime_Semrelease(addr *uint32, handoff bool, skipframes int) { semrelease1(addr, handoff, skipframes) } //go:linkname sync_runtime_SemacquireMutex sync.runtime_SemacquireMutex func sync_runtime_SemacquireMutex(addr *uint32, lifo bool, skipframes int) { semacquire1(addr, lifo, semaBlockProfile|semaMutexProfile, skipframes) } //go:linkname poll_runtime_Semrelease internal/poll.runtime_Semrelease func poll_runtime_Semrelease(addr *uint32) { semrelease(addr) } func readyWithTime(s *sudog, traceskip int) { if s.releasetime != 0 { s.releasetime = cputicks() } goready(s.g, traceskip) } type semaProfileFlags int const ( semaBlockProfile semaProfileFlags = 1 << iota semaMutexProfile ) // Called from runtime. func semacquire(addr *uint32) { semacquire1(addr, false, 0, 0) } func semacquire1(addr *uint32, lifo bool, profile semaProfileFlags, skipframes int) { gp := getg() if gp != gp.m.curg { throw("semacquire not on the G stack") } // Easy case. if cansemacquire(addr) { return } // Harder case: // increment waiter count // try cansemacquire one more time, return if succeeded // enqueue itself as a waiter // sleep // (waiter descriptor is dequeued by signaler) s := acquireSudog() root := semroot(addr) t0 := int64(0) s.releasetime = 0 s.acquiretime = 0 s.ticket = 0 if profile&semaBlockProfile != 0 && blockprofilerate > 0 { t0 = cputicks() s.releasetime = -1 } if profile&semaMutexProfile != 0 && mutexprofilerate > 0 { if t0 == 0 { t0 = cputicks() } s.acquiretime = t0 } for { lock(&root.lock) // Add ourselves to nwait to disable "easy case" in semrelease. atomic.Xadd(&root.nwait, 1) // Check cansemacquire to avoid missed wakeup. if cansemacquire(addr) { atomic.Xadd(&root.nwait, -1) unlock(&root.lock) break } // Any semrelease after the cansemacquire knows we're waiting // (we set nwait above), so go to sleep. root.queue(addr, s, lifo) goparkunlock(&root.lock, waitReasonSemacquire, traceEvGoBlockSync, 4+skipframes) if s.ticket != 0 || cansemacquire(addr) { break } } if s.releasetime > 0 { blockevent(s.releasetime-t0, 3+skipframes) } releaseSudog(s) } func semrelease(addr *uint32) { semrelease1(addr, false, 0) } func semrelease1(addr *uint32, handoff bool, skipframes int) { root := semroot(addr) atomic.Xadd(addr, 1) // Easy case: no waiters? // This check must happen after the xadd, to avoid a missed wakeup // (see loop in semacquire). if atomic.Load(&root.nwait) == 0 { return } // Harder case: search for a waiter and wake it. lock(&root.lock) if atomic.Load(&root.nwait) == 0 { // The count is already consumed by another goroutine, // so no need to wake up another goroutine. unlock(&root.lock) return } s, t0 := root.dequeue(addr) if s != nil { atomic.Xadd(&root.nwait, -1) } unlock(&root.lock) if s != nil { // May be slow or even yield, so unlock first acquiretime := s.acquiretime if acquiretime != 0 { mutexevent(t0-acquiretime, 3+skipframes) } if s.ticket != 0 { throw("corrupted semaphore ticket") } if handoff && cansemacquire(addr) { s.ticket = 1 } readyWithTime(s, 5+skipframes) if s.ticket == 1 && getg().m.locks == 0 { // Direct G handoff // readyWithTime has added the waiter G as runnext in the // current P; we now call the scheduler so that we start running // the waiter G immediately. // Note that waiter inherits our time slice: this is desirable // to avoid having a highly contended semaphore hog the P // indefinitely. goyield is like Gosched, but it emits a // "preempted" trace event instead and, more importantly, puts // the current G on the local runq instead of the global one. // We only do this in the starving regime (handoff=true), as in // the non-starving case it is possible for a different waiter // to acquire the semaphore while we are yielding/scheduling, // and this would be wasteful. We wait instead to enter starving // regime, and then we start to do direct handoffs of ticket and // P. // See issue 33747 for discussion. goyield() } } } func semroot(addr *uint32) *semaRoot { return &semtable[(uintptr(unsafe.Pointer(addr))>>3)%semTabSize].root } func cansemacquire(addr *uint32) bool { for { v := atomic.Load(addr) if v == 0 { return false } if atomic.Cas(addr, v, v-1) { return true } } } // queue adds s to the blocked goroutines in semaRoot. func (root *semaRoot) queue(addr *uint32, s *sudog, lifo bool) { s.g = getg() s.elem = unsafe.Pointer(addr) s.next = nil s.prev = nil var last *sudog pt := &root.treap for t := *pt; t != nil; t = *pt { if t.elem == unsafe.Pointer(addr) { // Already have addr in list. if lifo { // Substitute s in t's place in treap. *pt = s s.ticket = t.ticket s.acquiretime = t.acquiretime s.parent = t.parent s.prev = t.prev s.next = t.next if s.prev != nil { s.prev.parent = s } if s.next != nil { s.next.parent = s } // Add t first in s's wait list. s.waitlink = t s.waittail = t.waittail if s.waittail == nil { s.waittail = t } t.parent = nil t.prev = nil t.next = nil t.waittail = nil } else { // Add s to end of t's wait list. if t.waittail == nil { t.waitlink = s } else { t.waittail.waitlink = s } t.waittail = s s.waitlink = nil } return } last = t if uintptr(unsafe.Pointer(addr)) < uintptr(t.elem) { pt = &t.prev } else { pt = &t.next } } // Add s as new leaf in tree of unique addrs. // The balanced tree is a treap using ticket as the random heap priority. // That is, it is a binary tree ordered according to the elem addresses, // but then among the space of possible binary trees respecting those // addresses, it is kept balanced on average by maintaining a heap ordering // on the ticket: s.ticket <= both s.prev.ticket and s.next.ticket. // https://en.wikipedia.org/wiki/Treap // https://faculty.washington.edu/aragon/pubs/rst89.pdf // // s.ticket compared with zero in couple of places, therefore set lowest bit. // It will not affect treap's quality noticeably. s.ticket = fastrand() | 1 s.parent = last *pt = s // Rotate up into tree according to ticket (priority). for s.parent != nil && s.parent.ticket > s.ticket { if s.parent.prev == s { root.rotateRight(s.parent) } else { if s.parent.next != s { panic("semaRoot queue") } root.rotateLeft(s.parent) } } } // dequeue searches for and finds the first goroutine // in semaRoot blocked on addr. // If the sudog was being profiled, dequeue returns the time // at which it was woken up as now. Otherwise now is 0. func (root *semaRoot) dequeue(addr *uint32) (found *sudog, now int64) { ps := &root.treap s := *ps for ; s != nil; s = *ps { if s.elem == unsafe.Pointer(addr) { goto Found } if uintptr(unsafe.Pointer(addr)) < uintptr(s.elem) { ps = &s.prev } else { ps = &s.next } } return nil, 0 Found: now = int64(0) if s.acquiretime != 0 { now = cputicks() } if t := s.waitlink; t != nil { // Substitute t, also waiting on addr, for s in root tree of unique addrs. *ps = t t.ticket = s.ticket t.parent = s.parent t.prev = s.prev if t.prev != nil { t.prev.parent = t } t.next = s.next if t.next != nil { t.next.parent = t } if t.waitlink != nil { t.waittail = s.waittail } else { t.waittail = nil } t.acquiretime = now s.waitlink = nil s.waittail = nil } else { // Rotate s down to be leaf of tree for removal, respecting priorities. for s.next != nil || s.prev != nil { if s.next == nil || s.prev != nil && s.prev.ticket < s.next.ticket { root.rotateRight(s) } else { root.rotateLeft(s) } } // Remove s, now a leaf. if s.parent != nil { if s.parent.prev == s { s.parent.prev = nil } else { s.parent.next = nil } } else { root.treap = nil } } s.parent = nil s.elem = nil s.next = nil s.prev = nil s.ticket = 0 return s, now } // rotateLeft rotates the tree rooted at node x. // turning (x a (y b c)) into (y (x a b) c). func (root *semaRoot) rotateLeft(x *sudog) { // p -> (x a (y b c)) p := x.parent y := x.next b := y.prev y.prev = x x.parent = y x.next = b if b != nil { b.parent = x } y.parent = p if p == nil { root.treap = y } else if p.prev == x { p.prev = y } else { if p.next != x { throw("semaRoot rotateLeft") } p.next = y } } // rotateRight rotates the tree rooted at node y. // turning (y (x a b) c) into (x a (y b c)). func (root *semaRoot) rotateRight(y *sudog) { // p -> (y (x a b) c) p := y.parent x := y.prev b := x.next x.next = y y.parent = x y.prev = b if b != nil { b.parent = y } x.parent = p if p == nil { root.treap = x } else if p.prev == y { p.prev = x } else { if p.next != y { throw("semaRoot rotateRight") } p.next = x } } // notifyList is a ticket-based notification list used to implement sync.Cond. // // It must be kept in sync with the sync package. type notifyList struct { // wait is the ticket number of the next waiter. It is atomically // incremented outside the lock. wait uint32 // notify is the ticket number of the next waiter to be notified. It can // be read outside the lock, but is only written to with lock held. // // Both wait & notify can wrap around, and such cases will be correctly // handled as long as their "unwrapped" difference is bounded by 2^31. // For this not to be the case, we'd need to have 2^31+ goroutines // blocked on the same condvar, which is currently not possible. notify uint32 // List of parked waiters. lock mutex head *sudog tail *sudog } // less checks if a < b, considering a & b running counts that may overflow the // 32-bit range, and that their "unwrapped" difference is always less than 2^31. func less(a, b uint32) bool { return int32(a-b) < 0 } // notifyListAdd adds the caller to a notify list such that it can receive // notifications. The caller must eventually call notifyListWait to wait for // such a notification, passing the returned ticket number. //go:linkname notifyListAdd sync.runtime_notifyListAdd func notifyListAdd(l *notifyList) uint32 { // This may be called concurrently, for example, when called from // sync.Cond.Wait while holding a RWMutex in read mode. return atomic.Xadd(&l.wait, 1) - 1 } // notifyListWait waits for a notification. If one has been sent since // notifyListAdd was called, it returns immediately. Otherwise, it blocks. //go:linkname notifyListWait sync.runtime_notifyListWait func notifyListWait(l *notifyList, t uint32) { lock(&l.lock) // Return right away if this ticket has already been notified. if less(t, l.notify) { unlock(&l.lock) return } // Enqueue itself. s := acquireSudog() s.g = getg() s.ticket = t s.releasetime = 0 t0 := int64(0) if blockprofilerate > 0 { t0 = cputicks() s.releasetime = -1 } if l.tail == nil { l.head = s } else { l.tail.next = s } l.tail = s goparkunlock(&l.lock, waitReasonSyncCondWait, traceEvGoBlockCond, 3) if t0 != 0 { blockevent(s.releasetime-t0, 2) } releaseSudog(s) } // notifyListNotifyAll notifies all entries in the list. //go:linkname notifyListNotifyAll sync.runtime_notifyListNotifyAll func notifyListNotifyAll(l *notifyList) { // Fast-path: if there are no new waiters since the last notification // we don't need to acquire the lock. if atomic.Load(&l.wait) == atomic.Load(&l.notify) { return } // Pull the list out into a local variable, waiters will be readied // outside the lock. lock(&l.lock) s := l.head l.head = nil l.tail = nil // Update the next ticket to be notified. We can set it to the current // value of wait because any previous waiters are already in the list // or will notice that they have already been notified when trying to // add themselves to the list. atomic.Store(&l.notify, atomic.Load(&l.wait)) unlock(&l.lock) // Go through the local list and ready all waiters. for s != nil { next := s.next s.next = nil readyWithTime(s, 4) s = next } } // notifyListNotifyOne notifies one entry in the list. //go:linkname notifyListNotifyOne sync.runtime_notifyListNotifyOne func notifyListNotifyOne(l *notifyList) { // Fast-path: if there are no new waiters since the last notification // we don't need to acquire the lock at all. if atomic.Load(&l.wait) == atomic.Load(&l.notify) { return } lock(&l.lock) // Re-check under the lock if we need to do anything. t := l.notify if t == atomic.Load(&l.wait) { unlock(&l.lock) return } // Update the next notify ticket number. atomic.Store(&l.notify, t+1) // Try to find the g that needs to be notified. // If it hasn't made it to the list yet we won't find it, // but it won't park itself once it sees the new notify number. // // This scan looks linear but essentially always stops quickly. // Because g's queue separately from taking numbers, // there may be minor reorderings in the list, but we // expect the g we're looking for to be near the front. // The g has others in front of it on the list only to the // extent that it lost the race, so the iteration will not // be too long. This applies even when the g is missing: // it hasn't yet gotten to sleep and has lost the race to // the (few) other g's that we find on the list. for p, s := (*sudog)(nil), l.head; s != nil; p, s = s, s.next { if s.ticket == t { n := s.next if p != nil { p.next = n } else { l.head = n } if n == nil { l.tail = p } unlock(&l.lock) s.next = nil readyWithTime(s, 4) return } } unlock(&l.lock) } //go:linkname notifyListCheck sync.runtime_notifyListCheck func notifyListCheck(sz uintptr) { if sz != unsafe.Sizeof(notifyList{}) { print("runtime: bad notifyList size - sync=", sz, " runtime=", unsafe.Sizeof(notifyList{}), "\n") throw("bad notifyList size") } } //go:linkname sync_nanotime sync.runtime_nanotime func sync_nanotime() int64 { return nanotime() }
Close