use boolean flag to check state in close method
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170bc35076
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e190a04ee4
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@ -51,6 +51,7 @@ public class Sigar implements SigarProxy {
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private static SigarLoader loader = new SigarLoader(Sigar.class);
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private FileSystemMap mounts = null;
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private boolean open = false;
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int sigarWrapper = 0; //holds the sigar_t *
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long longSigarWrapper = 0; //same, but where sizeof(void*) > sizeof(int)
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@ -125,6 +126,7 @@ public class Sigar implements SigarProxy {
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public Sigar() {
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try {
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open();
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this.open = true;
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} catch (SigarException e) {
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if (enableLogging) {
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e.printStackTrace();
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@ -151,9 +153,10 @@ public class Sigar implements SigarProxy {
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* If the close method is not called directly, the finalize method will
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* call it if the Sigar object is garbage collected.
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*/
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public void close() {
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if (this.sigarWrapper != 0) {
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public synchronized void close() {
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if (this.open) {
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nativeClose();
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this.open = false;
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}
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}
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