go-judge/pkg/pool/envbuilder_linux.go

51 lines
1.0 KiB
Go

package pool
import (
"fmt"
"syscall"
"github.com/criyle/go-sandbox/container"
)
type environmentBuilder struct {
builder EnvironmentBuilder
cgPool CgroupPool
workDir string
cpuset string
cpuRate bool
}
// NewEnvBuilder creates builder for linux container pools
func NewEnvBuilder(builder EnvironmentBuilder, cgPool CgroupPool, workDir, cpuset string, cpuRate bool) EnvBuilder {
return &environmentBuilder{
builder: builder,
cgPool: cgPool,
workDir: workDir,
cpuset: cpuset,
cpuRate: cpuRate,
}
}
// Build creates linux container
func (b *environmentBuilder) Build() (Environment, error) {
m, err := b.builder.Build()
if err != nil {
return nil, err
}
wd, err := m.Open([]container.OpenCmd{{
Path: b.workDir,
Flag: syscall.O_CLOEXEC | syscall.O_DIRECTORY,
Perm: 0777,
}})
if err != nil {
return nil, fmt.Errorf("container: failed to prepare work directory")
}
return &environ{
Environment: m,
cgPool: b.cgPool,
wd: wd[0],
cpuset: b.cpuset,
cpuRate: b.cpuRate,
}, nil
}