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src/cmd/cgo/internal/test/issue18146.go
var rlim syscall.Rlimit if syscall.Getrlimit(nproc, &rlim) == nil { max := int(rlim.Cur) / (threads + 5) if attempts > max { t.Logf("lowering attempts from %d to %d for RLIMIT_NPROC", attempts, max) attempts = max } } } if os.Getenv("test18146") == "exec" { runtime.GOMAXPROCS(1) for n := threads; n > 0; n-- { go func() { for { _ = md5.Sum([]byte("Hello, !")) } }()
Go - Registered: Tue Apr 23 11:13:09 GMT 2024 - Last Modified: Tue Sep 05 23:35:32 GMT 2023 - 2.8K bytes - Viewed (0) -
misc/cgo/gmp/fib.go
// that pass integers back and forth. No actual // concurrency, just threads and synchronization // and foreign code on multiple pthreads. package main import ( big "." "runtime" ) func fibber(c chan *big.Int, out chan string, n int64) { // Keep the fibbers in dedicated operating system // threads, so that this program tests coordination // between pthreads and not just goroutines. runtime.LockOSThread()
Go - Registered: Tue Apr 30 11:13:12 GMT 2024 - Last Modified: Mon Apr 10 22:32:35 GMT 2023 - 919 bytes - Viewed (0) -
src/cmd/cgo/internal/test/issue1435.go
} if !foundAThread { return fmt.Errorf("found no thread /proc/<TID>/status files for process %q", expectedProc) } return nil } // test1435 test 9 glibc implemented setuid/gid syscall functions are // mapped. This test is a slightly more expansive test than that of // src/syscall/syscall_linux_test.go:TestSetuidEtc() insofar as it // launches concurrent threads from C code via CGo and validates that
Go - Registered: Tue Apr 23 11:13:09 GMT 2024 - Last Modified: Fri Jul 28 21:31:41 GMT 2023 - 7.5K bytes - Viewed (0) -
src/cmd/cgo/doc.go
When using cgo, Go must not assume that it owns all details of the process. In particular it needs to coordinate with C in the use of threads and thread-local storage. The runtime package declares a few variables: var ( iscgo bool _cgo_init unsafe.Pointer _cgo_thread_start unsafe.Pointer ) Any package using cgo imports "runtime/cgo", which provides
Go - Registered: Tue Apr 30 11:13:12 GMT 2024 - Last Modified: Sun Mar 31 09:02:45 GMT 2024 - 42.1K bytes - Viewed (0) -
src/bufio/bufio_test.go
} var bufreaders = []bufReader{ {"1", func(b *Reader) string { return reads(b, 1) }}, {"2", func(b *Reader) string { return reads(b, 2) }}, {"3", func(b *Reader) string { return reads(b, 3) }}, {"4", func(b *Reader) string { return reads(b, 4) }}, {"5", func(b *Reader) string { return reads(b, 5) }}, {"7", func(b *Reader) string { return reads(b, 7) }}, {"bytes", readBytes}, {"lines", readLines}, }
Go - Registered: Tue Apr 30 11:13:12 GMT 2024 - Last Modified: Fri Feb 10 18:56:01 GMT 2023 - 51.5K bytes - Viewed (0) -
src/cmd/cgo/internal/test/callback.go
if lockedOSThread() { t.Fatal("locked OS thread on entry to TestCallbackPanic") } defer func() { s := recover() if s == nil { t.Fatal("did not panic") } if s.(string) != "callback panic" { t.Fatal("wrong panic:", s) } if lockedOSThread() { t.Fatal("locked OS thread on exit from TestCallbackPanic") } }() nestedCall(func() { panic("callback panic") })
Go - Registered: Tue Apr 23 11:13:09 GMT 2024 - Last Modified: Fri May 12 12:00:02 GMT 2023 - 111.5K bytes - Viewed (0) -
src/bytes/buffer_test.go
check(t, "NewBuffer", &buf, testString) } func TestNewBufferString(t *testing.T) { buf := NewBufferString(testString) check(t, "NewBufferString", buf, testString) } // Empty buf through repeated reads into fub. // The initial contents of buf corresponds to the string s. func empty(t *testing.T, testname string, buf *Buffer, s string, fub []byte) { check(t, testname+" (empty 1)", buf, s) for {
Go - Registered: Tue Apr 30 11:13:12 GMT 2024 - Last Modified: Fri Apr 26 13:31:36 GMT 2024 - 18.6K bytes - Viewed (0) -
src/archive/zip/reader_test.go
} // test read of each file for i, ft := range zt.File { readTestFile(t, zt, ft, z.File[i], raw) } if t.Failed() { return } // test simultaneous reads n := 0 done := make(chan bool) for i := 0; i < 5; i++ { for j, ft := range zt.File { go func(j int, ft ZipTestFile) { readTestFile(t, zt, ft, z.File[j], raw) done <- true }(j, ft)
Go - Registered: Tue Apr 30 11:13:12 GMT 2024 - Last Modified: Wed Mar 27 18:23:49 GMT 2024 - 55.3K bytes - Viewed (0) -
doc/go1.17_spec.html
} // empty a channel for range ch {} </pre> <h3 id="Go_statements">Go statements</h3> <p> A "go" statement starts the execution of a function call as an independent concurrent thread of control, or <i>goroutine</i>, within the same address space. </p> <pre class="ebnf"> GoStmt = "go" Expression . </pre> <p>
HTML - Registered: Tue May 07 11:14:38 GMT 2024 - Last Modified: Thu Apr 11 20:22:45 GMT 2024 - 211.6K bytes - Viewed (0) -
doc/go_mem.html
*p += i </pre> <p> If <code>i</code> and <code>*p</code> start equal to 2, the original code does <code>*p = 3</code>, so a racing thread can read only 2 or 3 from <code>*p</code>. The rewritten code does <code>*p = 1</code> and then <code>*p = 3</code>, allowing a racing thread to read 1 as well. </p> <p> Note that all these optimizations are permitted in C/C++ compilers:
HTML - Registered: Tue May 07 11:14:38 GMT 2024 - Last Modified: Mon Mar 04 15:54:42 GMT 2024 - 26.6K bytes - Viewed (0)