Re: Read-Write Lock is Available?
There's a simple wrapper around the pthread_rwlock_t here: http://cocoaheads.byu.edu/wiki/locks Cheers, Dave On May 12, 2011, at 11:23 AM, Bing Li wrote: > Dear Stephen and Lance, > > I appreciate so much for your reply! > > I am exactly sure if my approach is fine. I plan to protect the data that > might be used concurrently with read-write locks. In the meantime, the > concurrency is implemented using NSOperationQueue. Is it OK? > > Best regards, > Bing > > On Fri, May 13, 2011 at 2:15 AM, Stephen J. Butler > wrote: > >> On Thu, May 12, 2011 at 12:44 PM, Bing Li wrote: >>> I am writing concurrent code. I get used to the read-write lock on other >>> development environment. However, according to the Threading Programming >>> Guide from apple.com, Cocoa does not support the read-write lock? We can >> use >>> it with POSIX threads? Is that true? >> >> It is safe to use POSIX threads RW locks with Cocoa threads. >> >> man pthread_rwlock_init >> > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/davedelong%40me.com > > This email sent to davedel...@me.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Read-Write Lock is Available?
Dear Stephen and Lance, I appreciate so much for your reply! I am exactly sure if my approach is fine. I plan to protect the data that might be used concurrently with read-write locks. In the meantime, the concurrency is implemented using NSOperationQueue. Is it OK? Best regards, Bing On Fri, May 13, 2011 at 2:15 AM, Stephen J. Butler wrote: > On Thu, May 12, 2011 at 12:44 PM, Bing Li wrote: > > I am writing concurrent code. I get used to the read-write lock on other > > development environment. However, according to the Threading Programming > > Guide from apple.com, Cocoa does not support the read-write lock? We can > use > > it with POSIX threads? Is that true? > > It is safe to use POSIX threads RW locks with Cocoa threads. > > man pthread_rwlock_init > ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Read-Write Lock is Available?
On Thu, May 12, 2011 at 12:44 PM, Bing Li wrote: > I am writing concurrent code. I get used to the read-write lock on other > development environment. However, according to the Threading Programming > Guide from apple.com, Cocoa does not support the read-write lock? We can use > it with POSIX threads? Is that true? It is safe to use POSIX threads RW locks with Cocoa threads. man pthread_rwlock_init ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Read-Write Lock is Available?
hi- On May 12, 2011, at 1:44 PM, Bing Li wrote: > I am writing concurrent code. I get used to the read-write lock on other > development environment. However, according to the Threading Programming > Guide from apple.com, Cocoa does not support the read-write lock? We can use > it with POSIX threads? Is that true? have you looked at the mutex variable, or NSLock? Also, the darwin mail list may be better for you. Are your threads in a single process or not? ... that can make a difference in the answer ... thanks!- -lance ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Read-Write Lock is Available?
Dear all, I am writing concurrent code. I get used to the read-write lock on other development environment. However, according to the Threading Programming Guide from apple.com, Cocoa does not support the read-write lock? We can use it with POSIX threads? Is that true? Thanks so much! Bing ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
