Function gdal_sys::CPLVirtualMemIsAccessThreadSafe

source · 
pub unsafe extern "C" fn CPLVirtualMemIsAccessThreadSafe(
    ctxt: *mut CPLVirtualMem
) -> c_int
Expand description

Return TRUE if this memory mapping can be accessed safely from concurrent threads.

The situation that can cause problems is when several threads try to access a page of the mapping that is not yet mapped.

The return value of this function depends on whether bSingleThreadUsage has been set of not in CPLVirtualMemNew() and/or the implementation.

On Linux, this will always return TRUE if bSingleThreadUsage = FALSE.

@param ctxt context returned by CPLVirtualMemNew(). @return TRUE if this memory mapping can be accessed safely from concurrent threads.

@since GDAL 1.11