| Commit message (Collapse) | Author | Age | Files | Lines |
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return a (C) long: PyArg_ParseTuple and Py_BuildValue may not let us get
at the size_t we really want, but C int is clearly too small for a 64-bit
box, and both the start parameter and the return value should work for
large mapped files even on 32-bit boxes. The code really needs to be
rethought from scratch (not by me, though ...).
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1) it didn't obey the "start" parameter (and when it does, we must validate
the value)
2) the return value needs to be an absolute index, rather than relative to
some arbitrary point in the file
(checking CVS, it appears this method never worked; these changes bring it
into line with typical .find() behavior)
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SF patch 416251 2.1c1 mmapmodule: unused vrbl cleanup
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Repaired *some* of the SGI compiler warnings Sjoerd Mullender reported.
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under CYGWIN as shared libraries (DLLs).
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without a name when the optional tagname arg isn't specified. Was
actually creating a mapping with an empty string as the name.
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Versions are defined for Windows and Unix; the Unix
flavor uses sysconf() to get the page size; this avoids
the use of getpagesize(), which is deprecated and
requires an additional library on some platforms
(specifically, Reliant UNIX).
This partially closes SourceForge bug #113797.
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undefined. ccording to MvL, this is safe: the MS_SYNC flag means that
msync() returns when all I/O operations are scheduled; without it, it
waits until they are complete, which is acceptable behavior.
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* After discussion with Trent, all INT_PTR references have been removed in favour of the HANDLE it should always have been. Trent can see no 64bit issues here.
* In this process, I noticed that the close operation was dangerous, in that we could end up passing bogus results to the Win32 API. These result of the API functions passed the bogus values were never (and still are not) checked, but this is closer to "the right thing" (tm) than before.
Tested on Windows and Linux.
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this module should not leak in the face of errors.
Checkin that replaces the INT_PTR types with HANDLEs still TBD (but as that is a "spelling" patch, rather than a functional one, I will commit it seperately.
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comments, docstrings or error messages. I fixed two minor things in
test_winreg.py ("didn't" -> "Didn't" and "Didnt" -> "Didn't").
There is a minor style issue involved: Guido seems to have preferred English
grammar (behaviour, honour) in a couple places. This patch changes that to
American, which is the more prominent style in the source. I prefer English
myself, so if English is preferred, I'd be happy to supply a patch myself ;)
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just for the sake of it.
note that this only covers the unlikely case that size_t
is smaller than a long; it's probably more likely that
there are platforms out there where size_t is *larger*
than a long, and mmapmodule cannot really deal with that
today.
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(patch #100762 by Peter Schneider-Kamp, minus the
indentation changes)
-- added INT_PTR workaround to make it build under VC 5.0
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I discovered the [MREMAP_MAYMOVE] symbol is only defined when _GNU_SOURCE is
defined; therefore, here is the change: if we are compiling for linux,
define _GNU_SOURCE before including mman.h, and all is done.
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Remove two unused variables
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The seek() method is broken for any 'whence' value (seek from
start, current, orend) other than the default. I have a patch
that fixes that as well as gets mmap'd files working on
Linux64 and Win64.
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size of the mapped area. This seems to be what the Windows version does.
This change requires keeping around the fd of the mapped file.
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from Greg Stein
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(Pointed out by Moshe Zadka)
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For more comments, read the patches@python.org archives.
For documentation read the comments in mymalloc.h and objimpl.h.
(This is not exactly what Vladimir posted to the patches list; I've
made a few changes, and Vladimir sent me a fix in private email for a
problem that only occurs in debug mode. I'm also holding back on his
change to main.c, which seems unnecessary to me.)
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IRIX, it doesn't even compile. Added a cast: "where >= (char *)0".
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This patch fixes the mmap module on Windows 9x.
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The bug is in mmap_read_line_method(), and its loop that searches for
newlines. After the loop reaches EOF, eol is incremented and points
after the end of the memory. This results in readline() method
sometimes picking up and returning a byte after the end of the string.
This is usually a bogus \0, but it could cause SIGSEGV if it's after
the end of the page).
The patch fixes the problem. Also, it uses memchr() for finding a
character, which is in fact the "strnchr" the comment is asking for.
memchr() is already used in Python sources, so there should be no
portability problems.
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Reformatted for 8-space tabs and fitted into 80-char lines by GvR.
Mark writes:
* the Win32 version now accepts the same args as the Unix version.
The win32 specific "tag" param is now optional. The end result is
that the exact same test suite runs on Windows (definately a worthy
goal!).
* I changed the error object. All occurences of the error, except
for 1, corresponds to an underlying OS error. This one was changed
to a ValueError (a better error for that condition), and the module
error object is now simply EnvironmentError. All win32 error
routines now call the new Windows specific error handler.
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(Needs testing on Win32.)
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