Apple-2-SW
/
dot_clean
mirror of https://github.com/ksherlock/dot_clean.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

mapped_file w/ length of 0.

This commit is contained in:
Kelvin Sherlock 2016-08-05 09:38:35 -04:00
parent 9fa3131909
commit 00c936aaf6
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
mapped_file.cpp
View File

@ -48,7 +48,6 @@ void mapped_file_base::open(const path_type& p, mapmode flags, size_t length, si
HANDLE fh;
HANDLE mh;
LARGE_INTEGER file_size;
// length of 0 in CreateFileMapping / MapViewOfFile
// means map the entire file.
@ -71,10 +70,12 @@ void mapped_file_base::open(const path_type& p, mapmode flags, size_t length, si
auto fh_close = make_unique_resource(fh, CloseHandle);
GetFileSizeEx(fh, &file_size);
if (length == -1)
if (length == -1){
LARGE_INTEGER file_size;
GetFileSizeEx(fh, &file_size);
length = file_size.QuadPart;
}
DWORD protect = 0;
DWORD access = 0;
@ -246,7 +247,7 @@ void mapped_file_base::open(const path_type& p, mapmode flags, size_t length, si
length = st.st_size;
}
if (length == 0) return; // mmap w/ length of 0 is EINVAL.
_data = ::mmap(0, length,
flags == readonly ? PROT_READ : PROT_READ | PROT_WRITE,