Runtime out of memory

[duysqubix]

Hi, I'm trying to use .go as .so lib which then is imported to python.

extsoundmix.go

//extsoundmix.go
package main

import (
	"C"
	"log"
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/mp3"
	"github.com/faiface/beep/speaker"
)

//export PlaySong
func PlaySong(s string) {
	f, err := os.Open(s)
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()
	streamer, format, err := mp3.Decode(f)
	if err != nil {
		log.Fatal(err)
	}

	defer streamer.Close()

	done := make(chan bool)
	speaker.Init(format.SampleRate, format.SampleRate.N(time.Second/10))
	speaker.Play(beep.Seq(streamer, beep.Callback(func() {
		done <- true
	})))
	<-done
	// defer f.Close()
}

func main() {
	// PlaySong("/home/dfsad/Downloads/black-alert.mp3")
}

app.py

from ctypes import cdll

lib = cdll.LoadLibrary('/home/dfsad/go/src/extsound/extsoundmix.so')
print("Loaded go generated SO library")
result = lib.PlaySong("/home/dfsad/Downloads/black-alert.mp3")

runtime: out of memory: cannot allocate 140648171077632-byte block (66748416 in use)
fatal error: out of memory

runtime stack:
runtime.throw(0x7feb2017abc4, 0xd)
	/usr/local/go/src/runtime/panic.go:617 +0x74
runtime.largeAlloc(0x7feb34467ccf, 0x7feb204b0100, 0xc0000b2120)
	/usr/local/go/src/runtime/malloc.go:1057 +0x16d
runtime.mallocgc.func1()
	/usr/local/go/src/runtime/malloc.go:950 +0x48
runtime.systemstack(0x7ffcee70f2e0)
	/usr/local/go/src/runtime/asm_amd64.s:351 +0x63
runtime.mstart()
	/usr/local/go/src/runtime/proc.go:1153

goroutine 17 [running, locked to thread]:
runtime.systemstack_switch()
	/usr/local/go/src/runtime/asm_amd64.s:311 fp=0xc000046920 sp=0xc000046918 pc=0x7feb2011c650
runtime.mallocgc(0x7feb34467ccf, 0x0, 0x7feb18aec900, 0x20300000000000)
	/usr/local/go/src/runtime/malloc.go:949 +0x884 fp=0xc0000469c0 sp=0xc000046920 pc=0x7feb200d4cd4
runtime.rawstring(0x7feb34467ccf, 0x0, 0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/runtime/string.go:259 +0x51 fp=0xc0000469f0 sp=0xc0000469c0 pc=0x7feb2010c3b1
runtime.rawstringtmp(0x0, 0x7feb34467ccf, 0xc000046af0, 0x7feb200d1fa3, 0x7feb203d18e0, 0x7feb0002fa80, 0x7feb203c66a0)
	/usr/local/go/src/runtime/string.go:123 +0x74 fp=0xc000046a30 sp=0xc0000469f0 pc=0x7feb2010bd74
runtime.concatstrings(0x0, 0xc000046b10, 0x5, 0x5, 0x7feb2017b1e7, 0x10)
	/usr/local/go/src/runtime/string.go:49 +0xb0 fp=0xc000046ac8 sp=0xc000046a30 pc=0x7feb2010b7f0
runtime.concatstring5(0x0, 0x7feb2017995a, 0x4, 0x7feb20179780, 0x1, 0x7feb21580c10, 0x7feb34467cb8, 0x7feb201797b4, 0x2, 0x7feb2017b1e7, ...)
	/usr/local/go/src/runtime/string.go:70 +0x49 fp=0xc000046b08 sp=0xc000046ac8 pc=0x7feb2010bbd9
os.(*PathError).Error(0xc000096180, 0x7feb203ee9c0, 0xc0000d2000)
	/usr/local/go/src/os/error.go:33 +0xad fp=0xc000046b80 sp=0xc000046b08 pc=0x7feb201562fd
fmt.(*pp).handleMethods(0xc0000d2000, 0xc000000076, 0xc000046c01)
	/usr/local/go/src/fmt/print.go:610 +0x198 fp=0xc000046c20 sp=0xc000046b80 pc=0x7feb2015dbb8
fmt.(*pp).printArg(0xc0000d2000, 0x7feb203d18e0, 0xc000096180, 0x7feb00000076)
	/usr/local/go/src/fmt/print.go:699 +0x20c fp=0xc000046cb8 sp=0xc000046c20 pc=0x7feb2015e13c
fmt.(*pp).doPrint(0xc0000d2000, 0xc000046e70, 0x1, 0x1)
	/usr/local/go/src/fmt/print.go:1147 +0xff fp=0xc000046d40 sp=0xc000046cb8 pc=0x7feb20162c4f
fmt.Sprint(0xc000046e70, 0x1, 0x1, 0x0, 0x7feb203f0a60)
	/usr/local/go/src/fmt/print.go:250 +0x54 fp=0xc000046d98 sp=0xc000046d40 pc=0x7feb2015af74
log.Fatal(0xc000046e70, 0x1, 0x1)
	/usr/local/go/src/log/log.go:313 +0x41 fp=0xc000046dd8 sp=0xc000046d98 pc=0x7feb20164131
main.PlaySong(0x7feb21580c10, 0x7feb34467cb8)
	/home/dfsad/go/src/extsound/extsoundmix.go:19 +0xbe fp=0xc000046e90 sp=0xc000046dd8 pc=0x7feb2017858e
main._cgoexpwrap_11df64b4c5a5_PlaySong(0x7feb21580c10, 0x7feb34467cb8)
	_cgo_gotypes.go:45 +0x37 fp=0xc000046eb0 sp=0xc000046e90 pc=0x7feb201784b7
runtime.call32(0x0, 0x7ffcee70f330, 0x7ffcee70f3c0, 0x10)
	/usr/local/go/src/runtime/asm_amd64.s:519 +0x3d fp=0xc000046ee0 sp=0xc000046eb0 pc=0x7feb2011c9ed
runtime.cgocallbackg1(0x0)
	/usr/local/go/src/runtime/cgocall.go:314 +0x17b fp=0xc000046f58 sp=0xc000046ee0 pc=0x7feb200cc80b
runtime.cgocallbackg(0x0)
	/usr/local/go/src/runtime/cgocall.go:191 +0xcb fp=0xc000046fc0 sp=0xc000046f58 pc=0x7feb200cc5eb
runtime.cgocallback_gofunc(0x0, 0x0, 0x0, 0x0)
	/usr/local/go/src/runtime/asm_amd64.s:773 +0x9a fp=0xc000046fe0 sp=0xc000046fc0 pc=0x7feb2011dffa
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc000046fe8 sp=0xc000046fe0 pc=0x7feb2011e751

Original issue: faiface/beep#51