src/os/aix/vm/perfMemory_aix.cpp

rev 11747 : 8162869: Small fixes for AIX perf memory and attach listener

*** 949,977 ****
  //
  static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
  
    // open the file
    int result;
!   // No O_NOFOLLOW defined at buildtime, and it is not documented for open;
!   // so provide a workaround in this case
  #ifdef O_NOFOLLOW
    RESTARTABLE(::open(filename, oflags), result);
  #else
    result = open_o_nofollow(filename, oflags);
  #endif
- 
    if (result == OS_ERR) {
      if (errno == ENOENT) {
!       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
!                   "Process not found");
      }
      else if (errno == EACCES) {
!       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
!                   "Permission denied");
      }
      else {
!       THROW_MSG_0(vmSymbols::java_io_IOException(), os::strerror(errno));
      }
    }
    int fd = result;
  
    // Check to see if the file is secure.
--- 949,976 ----
  //
  static int open_sharedmem_file(const char* filename, int oflags, TRAPS) {
  
    // open the file
    int result;
!   // provide a workaround in case no O_NOFOLLOW is defined at buildtime
  #ifdef O_NOFOLLOW
    RESTARTABLE(::open(filename, oflags), result);
  #else
    result = open_o_nofollow(filename, oflags);
  #endif
    if (result == OS_ERR) {
      if (errno == ENOENT) {
!       THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(),
!                  "Process not found", OS_ERR);
      }
      else if (errno == EACCES) {
!       THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(),
!                  "Permission denied", OS_ERR);
      }
      else {
!       THROW_MSG_(vmSymbols::java_io_IOException(),
!                  os::strerror(errno), OS_ERR);
      }
    }
    int fd = result;
  
    // Check to see if the file is secure.
*** 985,995 ****
  
  // create a named shared memory region. returns the address of the
  // memory region on success or NULL on failure. A return value of
  // NULL will ultimately disable the shared memory feature.
  //
! // On AIX, Solaris and Linux, the name space for shared memory objects
  // is the file system name space.
  //
  // A monitoring application attaching to a JVM does not need to know
  // the file system name of the shared memory object. However, it may
  // be convenient for applications to discover the existence of newly
--- 984,994 ----
  
  // create a named shared memory region. returns the address of the
  // memory region on success or NULL on failure. A return value of
  // NULL will ultimately disable the shared memory feature.
  //
! // On AIX, the name space for shared memory objects
  // is the file system name space.
  //
  // A monitoring application attaching to a JVM does not need to know
  // the file system name of the shared memory object. However, it may
  // be convenient for applications to discover the existence of newly
*** 1009,1018 ****
--- 1008,1018 ----
    if (user_name == NULL)
      return NULL;
  
    char* dirname = get_user_tmp_dir(user_name);
    char* filename = get_sharedmem_filename(dirname, vmid);
+ 
    // get the short filename.
    char* short_filename = strrchr(filename, '/');
    if (short_filename == NULL) {
      short_filename = filename;
    } else {