src/java.base/unix/native/libjava/childproc.h

rev 54932 : [mq]: 8223777-posix_spawn-no-exec-error-alternate-impl

*** 99,108 ****
--- 99,109 ----
      const char **argv;
      int argc;
      const char **envv;
      const char *pdir;
      int redirectErrorStream;
+     int sendAlivePing;
  } ChildStuff;
  
  /* following used in addition when mode is SPAWN */
  typedef struct _SpawnInfo {
      int nargv; /* number of argv array elements  */
*** 112,121 ****
--- 113,129 ----
      int dirlen; /* length of home directory string */
      int nparentPathv; /* number of elements in parentPathv array */
      int parentPathvBytes; /* total number of bytes in parentPathv array */
  } SpawnInfo;
  
+ /* If ChildStuff.sendAlivePing is true, child shall signal aliveness to
+  * the parent the moment it gains consciousness, before any subsequent
+  * pre-exec errors could happen.
+  * This code must fit into an int and not be a valid errno value on any of
+  * our platforms. */
+ #define CHILD_IS_ALIVE      65535
+ 
  /**
   * The cached and split version of the JDK's effective PATH.
   * (We don't support putenv("PATH=...") in native code)
   */
  const char * const *parentPathv;