Comments (3)
I haven't looked at the code, but the MAP_FIXED flag to mmap comes to mind. Is that used already?
from speedtables.
I had that in the original code.
if(addr == (char *)-1)
addr = 0;
if(addr) flags |= MAP_FIXED;
map = mmap(addr, size, PROT_READ|PROT_WRITE, flags, fd, (off_t) 0);
It now looks like it's calling a BOOST API that may not provide as much
control:
#include <boost/interprocess/managed_mapped_file.hpp>
...
if (create != 0) { mmf = new managed_mapped_file(open_or_create, file,
default_size, (void_)addr); } else { mmf = new managed_mapped_file(open_only,
file, (void_)addr); }
Need to check what Boost is doing.
On Wed, Jan 7, 2015 at 2:24 AM, Pietro Cerutti [email protected]
wrote:
I haven't looked at the code, but the MAP_FIXED flag to mmap comes to
mind. Is that used already?—
Reply to this email directly or view it on GitHub
#46 (comment)
.
from speedtables.
This might be worked on alongside the fix to issue #38 if boost allows for it.
from speedtables.
Related Issues (20)
- _dirty field not automatically updated HOT 2
- speedtable thread safety HOT 2
- tclobj HOT 3
- cpp branch will build and install even if boost-libs not present
- Reimplement support for flags to mmap (nosync nocore) HOT 3
- speed tables doesn't work with clang and other non-GCC compilers HOT 10
- ckalloc no longer returns char* in tcl8.6 HOT 2
- compilation issues on Ubuntu HOT 3
- speedtables startup locking sometimes fails to provide mutual exclusion / fails outright HOT 4
- stapi::refresh_ctable doesn't rewrite the TSV cachefile HOT 6
- stapi::refresh_ctable does not clear the initial table if no time column is provided HOT 5
- stapi::refresh_ctable does not handle SQL generation errors HOT 5
- More than one call to stapi::init can confuse existing speedtables HOT 5
- search with match against integer fields will crash HOT 6
- search -code with return statement does not stop proc execution HOT 17
- search fails to fully unset the data in the data array for each loop HOT 30
- Using a speedtable shared library from two interpreters in the same process leads to a crash HOT 1
- Incompatibility between compare "in" operator in native speedtables versus stapi-based postgres version HOT 2
- Pacakge versions for 1.13.18 say 1.13.17 HOT 7
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from speedtables.