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* thread.cc (pthread_rwlock::add_reader): Perform new operation here and return

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pointer to allocated RWLOCK_READER structure.
(pthread_rwlock::rdlock): Reorganize to reflect new add_reader functionality.
(pthread_rwlock::tryrdlock): Ditto.  Remove unneeded call to lookup_reader().
* thread.h (pthread_rwlock::RWLOCK_READER::RWLOCK_READER): New constructor.
(pthread_rwlock::add_reader): Reflect new functionality.
This commit is contained in:
Christopher Faylor
2013-01-07 16:01:10 +00:00
parent 6cb6ea9cb4
commit 8f3f61eb96
3 changed files with 27 additions and 19 deletions
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3
winsup/cygwin/thread.h
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@@ -555,6 +555,7 @@ public:
struct RWLOCK_READER *next;
pthread_t thread;
unsigned long n;
RWLOCK_READER (): next (NULL), thread (pthread::self ()), n (0) {}
} *readers;
fast_mutex readers_mx;
@@ -583,7 +584,7 @@ public:
private:
static List<pthread_rwlock> rwlocks;
void add_reader (struct RWLOCK_READER *rd);
RWLOCK_READER *add_reader ();
void remove_reader (struct RWLOCK_READER *rd);
struct RWLOCK_READER *lookup_reader (pthread_t thread);