Native implementation of posix.getuid()

Author: otethal

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

@@ -467,6 +467,10 @@ int32_t call_kill(int64_t pid, int32_t signal) {
     return kill(pid, signal);
 }
 
+int64_t call_getuid() {
+    return getuid();
+}
+
 int32_t get_errno() {
     return errno;
 }

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

@@ -414,17 +414,8 @@ long getPid(@CachedLibrary("getPosixSupport()") PosixSupportLibrary posixLib) {
     @GenerateNodeFactory
     public abstract static class GetUidNode extends PythonBuiltinNode {
         @Specialization
-        static long getPid() {
-            return getSystemUid();
-        }
-
-        @TruffleBoundary
-        static long getSystemUid() {
-            String osName = System.getProperty("os.name");
-            if (osName.contains("Linux")) {
-                return new com.sun.security.auth.module.UnixSystem().getUid();
-            }
-            return 1000;
+        long getUid(@CachedLibrary("getPosixSupport()") PosixSupportLibrary posixLib) {
+            return posixLib.getuid(getPosixSupport());
         }
     }
 

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

@@ -1561,6 +1561,17 @@ public int wstopsig(int status) {
         return 0;
     }
 
+    @ExportMessage
+    @SuppressWarnings("static-method")
+    @TruffleBoundary
+    public long getuid() {
+        String osName = System.getProperty("os.name");
+        if (osName.contains("Linux")) {
+            return new com.sun.security.auth.module.UnixSystem().getUid();
+        }
+        return 1000;
+    }
+
     @ExportMessage
     @TruffleBoundary
     public int forkExec(Object[] executables, Object[] args, Object cwd, Object[] env, int stdinReadFd, int stdinWriteFd, int stdoutReadFd, int stdoutWriteFd, int stderrReadFd, int stderrWriteFd,

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

@@ -661,6 +661,13 @@ final int wstopsig(int status,
         return logExit("wstopsig", "%d", lib.wstopsig(delegate, status));
     }
 
+    @ExportMessage
+    final long getuid(
+                    @CachedLibrary("this.delegate") PosixSupportLibrary lib) {
+        logEnter("getuid", "");
+        return logExit("getuid", "%d", lib.getuid(delegate));
+    }
+
     @ExportMessage
     final int forkExec(Object[] executables, Object[] args, Object cwd, Object[] env, int stdinReadFd, int stdinWriteFd, int stdoutReadFd, int stdoutWriteFd, int stderrReadFd, int stderrWriteFd,
                     int errPipeReadFd, int errPipeWriteFd, boolean closeFds, boolean restoreSignals, boolean callSetsid, int[] fdsToKeep,

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

@@ -148,6 +148,7 @@ private enum PosixNativeFunction {
         call_wexitstatus("(sint32):sint32"),
         call_wtermsig("(sint32):sint32"),
         call_wstopsig("(sint32):sint32"),
+        call_getuid("():sint64"),
         fork_exec("([sint8], [sint64], sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, sint32, [sint32], sint64):sint32");
 
         private final String signature;
@@ -890,6 +891,11 @@ public int wstopsig(int status,
         return invokeNode.callInt(this, PosixNativeFunction.call_wstopsig, status);
     }
 
+    @ExportMessage
+    public long getuid(@Shared("invoke") @Cached InvokeNativeFunction invokeNode) {
+        return invokeNode.callLong(this, PosixNativeFunction.call_getuid);
+    }
+
     @ExportMessage
     public int forkExec(Object[] executables, Object[] args, Object cwd, Object[] env, int stdinReadFd, int stdinWriteFd, int stdoutReadFd, int stdoutWriteFd, int stderrReadFd, int stderrWriteFd,
                     int errPipeReadFd, int errPipeWriteFd, boolean closeFds, boolean restoreSignals, boolean callSetsid, int[] fdsToKeep,

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

@@ -265,6 +265,8 @@ public abstract class PosixSupportLibrary extends Library {
 
     public abstract int wstopsig(Object receiver, int status);
 
+    public abstract long getuid(Object receiver);
+
     public abstract int forkExec(Object receiver, Object[] executables, Object[] args, Object cwd, Object[] env, int stdinReadFd, int stdinWriteFd, int stdoutReadFd, int stdoutWriteFd,
                     int stderrReadFd, int stderrWriteFd, int errPipeReadFd, int errPipeWriteFd, boolean closeFds, boolean restoreSignals, boolean callSetsid, int[] fdsToKeep) throws PosixException;