[GR-45308] Add os.getgid()

PullRequest: graalpython/2709

Author: msimacek

graalpython/com.oracle.graal.python.cext/posix/posix.c

@@ -545,6 +545,10 @@ int64_t call_getuid() {
     return getuid();
 }
 
+int64_t call_getgid() {
+    return getgid();
+}
+
 int64_t call_getppid() {
     return getppid();
 }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/PosixModuleBuiltins.java

@@ -559,6 +559,15 @@ long getUid(@CachedLibrary("getPosixSupport()") PosixSupportLibrary posixLib) {
         }
     }
 
+    @Builtin(name = "getgid", minNumOfPositionalArgs = 0)
+    @GenerateNodeFactory
+    public abstract static class GetGidNode extends PythonBuiltinNode {
+        @Specialization
+        long getGid(@CachedLibrary("getPosixSupport()") PosixSupportLibrary posixLib) {
+            return posixLib.getgid(getPosixSupport());
+        }
+    }
+
     @Builtin(name = "getppid", minNumOfPositionalArgs = 0)
     @GenerateNodeFactory
     public abstract static class GetPpidNode extends PythonBuiltinNode {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/EmulatedPosixSupport.java

@@ -1941,6 +1941,19 @@ public long getuid() {
         return 1000;
     }
 
+    @ExportMessage
+    @SuppressWarnings("static-method")
+    @TruffleBoundary
+    public long getgid() {
+        if (!PythonOptions.WITHOUT_PLATFORM_ACCESS) {
+            String osName = System.getProperty("os.name");
+            if (osName.contains("Linux")) {
+                return new UnixSystem().getGid();
+            }
+        }
+        return 1000;
+    }
+
     @ExportMessage
     @SuppressWarnings("static-method")
     public long getppid() {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/ImageBuildtimePosixSupport.java

@@ -622,6 +622,12 @@ final long getuid(@CachedLibrary("this.nativePosixSupport") PosixSupportLibrary
         return nativeLib.getuid(nativePosixSupport);
     }
 
+    @ExportMessage
+    final long getgid(@CachedLibrary("this.nativePosixSupport") PosixSupportLibrary nativeLib) {
+        checkNotInImageBuildtime();
+        return nativeLib.getgid(nativePosixSupport);
+    }
+
     @ExportMessage
     final long getppid(@CachedLibrary("this.nativePosixSupport") PosixSupportLibrary nativeLib) {
         checkNotInImageBuildtime();

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/LoggingPosixSupport.java

@@ -794,6 +794,13 @@ final long getuid(
         return logExit("getuid", "%d", lib.getuid(delegate));
     }
 
+    @ExportMessage
+    final long getgid(
+                    @CachedLibrary("this.delegate") PosixSupportLibrary lib) {
+        logEnter("getgid", "");
+        return logExit("getgid", "%d", lib.getgid(delegate));
+    }
+
     @ExportMessage
     final long getppid(
                     @CachedLibrary("this.delegate") PosixSupportLibrary lib) {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/NFIPosixSupport.java

@@ -205,6 +205,7 @@ private enum PosixNativeFunction {
         call_wtermsig("(sint32):sint32"),
         call_wstopsig("(sint32):sint32"),
         call_getuid("():sint64"),
+        call_getgid("():sint64"),
         call_getppid("():sint64"),
         call_getsid("(sint64):sint64"),
         call_ctermid("([sint8]):sint32"),
@@ -1090,6 +1091,11 @@ public long getuid(@Shared("invoke") @Cached InvokeNativeFunction invokeNode) {
         return invokeNode.callLong(this, PosixNativeFunction.call_getuid);
     }
 
+    @ExportMessage
+    public long getgid(@Shared("invoke") @Cached InvokeNativeFunction invokeNode) {
+        return invokeNode.callLong(this, PosixNativeFunction.call_getgid);
+    }
+
     @ExportMessage
     public long getppid(@Shared("invoke") @Cached InvokeNativeFunction invokeNode) {
         return invokeNode.callLong(this, PosixNativeFunction.call_getppid);

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PosixSupportLibrary.java

@@ -270,6 +270,8 @@ public abstract class PosixSupportLibrary extends Library {
 
     public abstract long getuid(Object receiver);
 
+    public abstract long getgid(Object receiver);
+
     public abstract long getppid(Object receiver);
 
     public abstract long getsid(Object receiver, long pid) throws PosixException;