Ticket #4250 (closed Bugs: fixed)
Interprocess tmp folder permission denied problem
|Reported by:||josephsieh@…||Owned by:||igaztanaga|
shmData = new shared_memory_object (
create_only, shmDataName, read_write
When shared_memory_object is created, IPC will create a tmp folder "boost_interprocess" in "C:\ProgramData?" folder under Windows VISTA+, and in "/tmp" under Mac. Then start to create a file under "boost_interprocess" directory.
The issue happens when user A call the IPC (C:\ProgramData?\boost_interprocess" will be created), then switch to another user B account, try to call the IPC again, then IPC will fail, due to "boost_interprocess" is already created by user A, therefore, user B has no permission to write anything into created "boost_interprocess" folder.
A quick fix of this problem might be modification of "inline void get_tmp_base_dir(std::string &tmp_name)" function in "boost/interprocess/detail/tmp_dir_helpers.hpp".
In line 103, instead of using the same "/boost_interprocess", maybe "boost_interprocess_$username" will be a solution for multiple users problem.
This issue exists at least from 1.40.0 to 1.43.0.