I am not familiar with the source tree for openBSD however that MMAP call may be a macro. If you've downloaded the source tree for openbsd maye there is a macro sub-directory or you can use the hammer approach and do something like
Hello. I'm writing some random access i/o software on Solaris 8 using mmap64 to memory map large files (my test file is ~25 GB).
The abbreviated code fragment is:
fd = open(cbuf,O_RDONLY|O_LARGEFILE);
struct stat statbuf;
fstat(fd,&statbuf);
off_t len =... (0 Replies)
We recently have been seeing the following type of error on our development server. Being somewhat new to HP-UX I was hoping to get some insight. Here is what I have found.
I have been doing some research.
/usr/lib/dld.sl: Call to mmap() failed - TEXT /u07/mdev/lib/libCLEND.sl... (2 Replies)
I'm using select() to monitor multiple file descriptors (inet sockets) in application. But this application must also collaborate with other applications on the same host via shared memory (mmap'ed file) due to performance reasons. How can I become notification that mmaped memory is changed or... (1 Reply)
Dear Experts,
i have a problem related to mmap(), when i run my program on sun for 64 bit which is throwing SIGBUS when it encounters mmap() function, what is the reason how to resolve this one, because it is working for 32 bit.
with regards,
vidya. (2 Replies)
Descriptions:
Develop a program that uses mmap() to map a file to memory space. Prepare such a file by yourself and do the follows.
<LI class=MsoNormal>Display the content of the file after mapping; <LI class=MsoNormal>Output how many digits included in the file; <LI class=MsoNormal>Replace... (1 Reply)
Hi
I want to lock or prevent a portion of memory which I allocated. So I tried MLOCK, MPROTECT and some like this. But all these functions works only on page border. Can I know why that so.
Is that possible to protect a portion of memory which is in middle of the page.
Example.
int A;
... (1 Reply)
I want to know whether this is possile or ever been tried out.
I want to obtain a chuck of memory using mmap()
I do it so :
n = mmap(0, 8000, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
And hold on to that memory, when a process requests for memory, some memory is... (2 Replies)
Discussion started by: xerox
2 Replies
LEARN ABOUT OSF1
lndir
lndir(1X)lndir(1X)NAME
lndir - create a shadow directory of symbolic links to another directory tree
SYNOPSIS
lndir fromdir [todir]
DESCRIPTION
lndir makes a shadow copy todir of a directory tree fromdir, except that the shadow is not populated with real files but instead with sym-
bolic links pointing at the real files in the fromdir directory tree. This is usually useful for maintaining source code for different
machine architectures. You create a shadow directory containing links to the real source which you will have usually NFS mounted from a
machine of a different architecture, and then recompile it. The object files will be in the shadow directory, while the source files in
the shadow directory are just symlinks to the real files.
This has the advantage that if you update the source, you need not propagate the change to the other architectures by hand, since all
source in shadow directories are symlinks to the real thing: just cd to the shadow directory and recompile.
The todir argument is optional and defaults to the current directory. The fromdir argument may be relative (e.g., ../src) and is relative
to todir (not the current directory).
Note that RCS, SCCS, and CVS.adm directories are not shadowed.
Note also that if you add files, you must run lndir again. Deleting files is difficult because the symlinks will point to places that no
longer exist.
BUGS
The patch routine needs to be able to change the files. You should never run patch from a shadow directory.
Use a command like the following to clear out all files before you can relink (if the fromdir has been moved, for instance):
find todir -type l -print | xargs rm
The following command will find all files that are not directories:
find . ! -type d -print
lndir(1X)