1 files changed, 82 insertions, 0 deletions
diff --git a/tests/cpueater/cpueater.c b/tests/cpueater/cpueater.c
new file mode 100644
index 00000000..b7d69ff9
--- /dev/null
+++ b/tests/cpueater/cpueater.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Simple cpu eater busy loop. Runs as a daemon. prints the child PID to
+ * std so you can easily kill it later.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+
+int main(int argc, char *argv[])
+{
+    pid_t pid;
+    int life_universe_and_everything;
+    int fd;
+
+    switch(fork()) {
+        case -1:
+            perror(argv[0]);
+            exit(1);
+            break;
+        case 0: /* child */
+            chdir("/");
+            umask(0);
+            setpgrp();
+            setsid();
+            /* fork again to fully detach from controlling terminal. */
+            switch(pid = fork()) { 
+                case -1:
+                    break;
+                case 0: /* second child */
+                    /* redirect to /dev/null */
+                    close(0); 
+                    open("/dev/null", 0);
+                    close(1);
+                    if(open("/dev/null", O_WRONLY) < 0) {
+                        perror("/dev/null");
+                        exit(1);
+                    }
+                    fflush(stdout);
+                    close(2); 
+                    dup(1);
+                    for (fd = 3; fd < 256; fd++) {
+                        close(fd);
+                    }
+                    /* busy looper */
+                    while (1) {
+                        life_universe_and_everything = 42 * 2;
+                    }
+                  default:
+                      /* so caller can easily kill it later. */
+                      printf("%d\n", pid);
+                      exit(0);
+                      break;
+                }
+                break;
+          default:
+              exit(0);
+              break;
+    }
+}
+
+
+/* vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab */
+