vmm: Make VsockConfig owned

Convert Path to PathBuf and remove the associated lifetime.
Now we can remove the VmConfig associated lifetime.

Fixes #298

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

vmm/src/config.rs

@@ -10,7 +10,7 @@ use net_util::MacAddr;
 use std::convert::From;
 use std::net::AddrParseError;
 use std::net::Ipv4Addr;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use std::result;
 use vm_memory::GuestAddress;
 use vm_virtio::vhost_user::VhostUserConfig;
@@ -521,13 +521,13 @@ impl VhostUserNetConfig {
     }
 }
 
-pub struct VsockConfig<'a> {
+pub struct VsockConfig {
     pub cid: u64,
-    pub sock: &'a Path,
+    pub sock: PathBuf,
 }
 
-impl<'a> VsockConfig<'a> {
-    pub fn parse(vsock: &'a str) -> Result<Self> {
+impl VsockConfig {
+    pub fn parse(vsock: &str) -> Result<Self> {
         // Split the parameters based on the comma delimiter
         let params_list: Vec<&str> = vsock.split(',').collect();
 
@@ -548,7 +548,7 @@ impl<'a> VsockConfig<'a> {
 
         Ok(VsockConfig {
             cid: cid_str.parse::<u64>().map_err(Error::ParseVsockCidParam)?,
-            sock: Path::new(sock_str),
+            sock: PathBuf::from(sock_str),
         })
     }
 }
@@ -608,7 +608,7 @@ impl VhostUserBlkConfig {
     }
 }
 
-pub struct VmConfig<'a> {
+pub struct VmConfig {
     pub cpus: CpusConfig,
     pub memory: MemoryConfig,
     pub kernel: KernelConfig,
@@ -623,11 +623,11 @@ pub struct VmConfig<'a> {
     pub devices: Option<Vec<DeviceConfig>>,
     pub vhost_user_net: Option<Vec<VhostUserNetConfig>>,
     pub vhost_user_blk: Option<Vec<VhostUserBlkConfig>>,
-    pub vsock: Option<Vec<VsockConfig<'a>>>,
+    pub vsock: Option<Vec<VsockConfig>>,
 }
 
-impl<'a> VmConfig<'a> {
-    pub fn parse(vm_params: VmParams<'a>) -> Result<Self> {
+impl VmConfig {
+    pub fn parse(vm_params: VmParams) -> Result<Self> {
         let mut disks: Option<Vec<DiskConfig>> = None;
         if let Some(disk_list) = &vm_params.disks {
             let mut disk_config_list = Vec::new();

vmm/src/vm.rs

@@ -426,7 +426,7 @@ impl Vcpu {
 pub struct VmInfo<'a> {
     pub memory: &'a Arc<RwLock<GuestMemoryMmap>>,
     pub vm_fd: &'a Arc<VmFd>,
-    pub vm_cfg: &'a VmConfig<'a>,
+    pub vm_cfg: &'a VmConfig,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq)]
@@ -507,7 +507,7 @@ pub struct Vm<'a> {
     threads: Vec<thread::JoinHandle<()>>,
     devices: DeviceManager,
     cpuid: CpuId,
-    config: &'a VmConfig<'a>,
+    config: &'a VmConfig,
     epoll: EpollContext,
     on_tty: bool,
     creation_ts: std::time::Instant,
@@ -533,7 +533,7 @@ fn get_host_cpu_phys_bits() -> u8 {
 }
 
 impl<'a> Vm<'a> {
-    pub fn new(kvm: &Kvm, config: &'a VmConfig<'a>) -> Result<Self> {
+    pub fn new(kvm: &Kvm, config: &'a VmConfig) -> Result<Self> {
         let kernel = File::open(&config.kernel.path).map_err(Error::KernelFile)?;
         let fd = kvm.create_vm().map_err(Error::VmCreate)?;
         let fd = Arc::new(fd);