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Boost-Commit : |
Subject: [Boost-commit] svn:boost r55519 - branches/release/boost/interprocess
From: igaztanaga_at_[hidden]
Date: 2009-08-11 04:27:57
Author: igaztanaga
Date: 2009-08-11 04:27:57 EDT (Tue, 11 Aug 2009)
New Revision: 55519
URL: http://svn.boost.org/trac/boost/changeset/55519
Log:
lseek is undefined with shared memory descriptors, use fstat instead.
Text files modified:
branches/release/boost/interprocess/mapped_region.hpp | 13 ++++---------
1 files changed, 4 insertions(+), 9 deletions(-)
Modified: branches/release/boost/interprocess/mapped_region.hpp
==============================================================================
--- branches/release/boost/interprocess/mapped_region.hpp (original)
+++ branches/release/boost/interprocess/mapped_region.hpp 2009-08-11 04:27:57 EDT (Tue, 11 Aug 2009)
@@ -443,24 +443,19 @@
}
#endif //ifdef BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS
if(size == 0){
- offset_t filesize = lseek
- (map_hnd.handle, offset, SEEK_END);
- if(filesize == -1 ){
+ struct ::stat buf;
+ if(0 != fstat(map_hnd.handle, &buf)){
error_info err(system_error_code());
throw interprocess_exception(err);
}
+ std::size_t filesize = (std::size_t)buf.st_size;
if(offset >= filesize){
error_info err(size_error);
throw interprocess_exception(err);
}
filesize -= offset;
- size = (size_t)filesize;
-
- if((offset_t)size != filesize){
- error_info err(size_error);
- throw interprocess_exception(err);
- }
+ size = filesize;
}
//Create new mapping
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