Before this patch, we were unconditionnaly destroying the Eina_File if that one
did change on disk. We also make sure that we remove the right entry from the cache
if the file did change there.
The lock on the main hash was taken to late (after we took the decision
to remove the targeted Eina_File from the cache), this means it was possible
to get an Eina_File from the cache that was going to be removed. This patch
attempt to fix that potential race condition.
Hopefully should fix T461.
global_map is set to MAP_FAILED in case of error after mmap.
So, it is initialized to MAP_FAILED and considered valid
otherwise.
So, we don't want to set the map to NULL or even check again NULL.
This reverts commit c002d113f1.
This commit reliably breaks builds with clang. Please test with
export CC=clang before you commit again.
export CC=clang
./autogen.sh --enable-multisense && make -j 10
The error Jenkins gets (I confirmed locally):
/bin/bash: line 1: 13549 Segmentation fault (core dumped) EFL_RUN_IN_TREE=1 ./bin/edje/edje_cc -id . -fd . -id ./tests/emotion/data tests/emotion/data/theme.edc tests/emotion/data/theme.edj
it's useful to copy file from one place to another and this will be
used in eio' s implementation.
NOTE: did not use mmap here as mmap faults may be cumbersome to handle
(Eina_File itself does that, but in a nasty way) and the
implementation would be severely different as there is no Eina_File
from FD, and there is no way to inject custom memory/fd into the
Eina_File's fault handling. The performance would not be that
different anyways and the splice() is already in there for systems
with good performance (read: Linux).
SVN revision: 81942