31 #include <synch.h>
  32 
  33 //
  34 // See threadCritical.hpp for details of this class.
  35 //
  36 // For some reason, we don't do locking until the
  37 // os::init() call completes. I'm not sure why this
  38 // is, and have left it that way for now. This should
  39 // be reviewed later.
  40 
  41 static  mutex_t  global_mut;
  42 static  thread_t global_mut_owner = -1;
  43 static  int      global_mut_count = 0;
  44 static  bool     initialized = false;
  45 
  46 ThreadCritical::ThreadCritical() {
  47   if (initialized) {
  48     thread_t owner = thr_self();
  49     if (global_mut_owner != owner) {
  50       if (os::Solaris::mutex_lock(&global_mut))
  51         fatal(err_msg("ThreadCritical::ThreadCritical: mutex_lock failed (%s)",
  52                       strerror(errno)));
  53       assert(global_mut_count == 0, "must have clean count");
  54       assert(global_mut_owner == -1, "must have clean owner");
  55     }
  56     global_mut_owner = owner;
  57     ++global_mut_count;
  58   } else {
  59     assert (Threads::number_of_threads() == 0, "valid only during initialization");
  60   }
  61 }
  62 
  63 ThreadCritical::~ThreadCritical() {
  64   if (initialized) {
  65     assert(global_mut_owner == thr_self(), "must have correct owner");
  66     assert(global_mut_count > 0, "must have correct count");
  67     --global_mut_count;
  68     if (global_mut_count == 0) {
  69       global_mut_owner = -1;
  70       if (os::Solaris::mutex_unlock(&global_mut))
  71         fatal(err_msg("ThreadCritical::~ThreadCritical: mutex_unlock failed "
  72                       "(%s)", strerror(errno)));
  73     }
  74   } else {
  75     assert (Threads::number_of_threads() == 0, "valid only during initialization");
  76   }
  77 }
  78 
  79 void ThreadCritical::initialize() {
  80   // This method is called at the end of os::init(). Until
  81   // then, we don't do real locking.
  82   initialized = true;
  83 }
  84 
  85 void ThreadCritical::release() {
  86 }

  31 #include <synch.h>
  32 
  33 //
  34 // See threadCritical.hpp for details of this class.
  35 //
  36 // For some reason, we don't do locking until the
  37 // os::init() call completes. I'm not sure why this
  38 // is, and have left it that way for now. This should
  39 // be reviewed later.
  40 
  41 static  mutex_t  global_mut;
  42 static  thread_t global_mut_owner = -1;
  43 static  int      global_mut_count = 0;
  44 static  bool     initialized = false;
  45 
  46 ThreadCritical::ThreadCritical() {
  47   if (initialized) {
  48     thread_t owner = thr_self();
  49     if (global_mut_owner != owner) {
  50       if (os::Solaris::mutex_lock(&global_mut))
  51         fatal("ThreadCritical::ThreadCritical: mutex_lock failed (%s)",
  52               strerror(errno));
  53       assert(global_mut_count == 0, "must have clean count");
  54       assert(global_mut_owner == -1, "must have clean owner");
  55     }
  56     global_mut_owner = owner;
  57     ++global_mut_count;
  58   } else {
  59     assert (Threads::number_of_threads() == 0, "valid only during initialization");
  60   }
  61 }
  62 
  63 ThreadCritical::~ThreadCritical() {
  64   if (initialized) {
  65     assert(global_mut_owner == thr_self(), "must have correct owner");
  66     assert(global_mut_count > 0, "must have correct count");
  67     --global_mut_count;
  68     if (global_mut_count == 0) {
  69       global_mut_owner = -1;
  70       if (os::Solaris::mutex_unlock(&global_mut))
  71         fatal("ThreadCritical::~ThreadCritical: mutex_unlock failed (%s)", strerror(errno));

  72     }
  73   } else {
  74     assert (Threads::number_of_threads() == 0, "valid only during initialization");
  75   }
  76 }
  77 
  78 void ThreadCritical::initialize() {
  79   // This method is called at the end of os::init(). Until
  80   // then, we don't do real locking.
  81   initialized = true;
  82 }
  83 
  84 void ThreadCritical::release() {
  85 }