chris clepper wrote:
On 6/7/06, *chris clepper* <cgclepper@gmail.com mailto:cgclepper@gmail.com> wrote:
Finally, after setting up one shm buffer at an address I can no longer create one at any other address. I get this message: pix_share_*: 2048x768x2: 3145728 error: pix_share_*: couldn't get shm_id: error 12pix_share_write might not be releasing the shm object correctly or at all.
you are right. in the process of detecting how big an already segment is attached a memory segment and did not properly release it anymore.
i have checked in a fix for this.
actually it is just an "shmdt(h);" below the "m_size=h->size;" below the "somebody was faster" warning.
I could only get one set up for a ~2.5MB buffer without rebooting to free up more. OSX might have changed the shmmax defaults to 4MB total in a recent update as well. I put it to 8MB and can now use a 1024x768x4 buffer after a fresh reboot although changing it to one double that size using the set message fails.
note that you can only resize the buffer to something larger if nothing refers to this segment any more.
mfg.asdr. IOhannes