Unused slabs which get recycled are no longer reinitialized from scratch if their chunk size matches what the allocator needed. If the chunk size matches, the list of available chunks is left unchanged, and just the various counters are reset.
Added __get_slab_stats() function.
Added support for global __slab_purge_threshold tuning variable.
Added a short test program for the slab allocator.
The malloc-test program was linked against the wrong object file in GNUmakefile.68k. Fixed.
If the first slab in the list of slabs which share the same chunk size has no more room, it means that all other slabs following it have no room either. This speeds up the test to find a slab with free space, which can now abort and directly proceed to allocate memory for a new slab.
If an empty slab's decay count hits zero, it is moved to the front of the empty slab list to be reclaimed more quickly.
Allocations made from the slab now carry a pointer back to the slab which they are a part of. This speeds up deallocation but has the downside of making the smallest usable slab chunk size 64 bytes, which is double what used to be the minimum before.
- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary
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parameter only once, and to be free of side-effects when tinkering
with the buffer position.
- isatty() had the __fd_lock() call in the wrong place, which could have
led to cleanup problems later.
- The close action in the stdio, socket and termios hook code now
also zaps the fd pointer itself after cleaning up the file descriptor
table entry.
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available only under OS4. There is a variant of dlopen() in libunix.a
which will perform a path name conversion. Note that these functions
will not work in the thread-safe variant of the library because it
would be unwise to tinker with the currently running program's binary.
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available only under OS4. There is a variant of dlopen() in libunix.a
which will perform a path name conversion.
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- Added support for ELF shared objects and libraries. This is implemented through
constructor/destructor functions, which means that you can use this
functionality even in Amiga Exec style shared libraries, with the proper
library initialization code to invoke the constructor/destructor functions
for you.
- Updated uname() to recognize AmigaOS 4.1.
- The translation from Unix to Amiga path names did not properly process
multiple occurences of "/./" in the path name. Thanks go to Steven Solie
for finding the issue.
- The detection of "/./" and "/../" patterns in Unix path names to be
translated into Amiga path names did not test if it was overrunning
the end of the string.
- If strcmp(), strncmp() and memcmp() detect a pair of different
characters, then the function result must be calculated as if the
characters were of type "unsigned char". This is a requirement
according to the ISO 'C' (1994) standard. Thanks go to Georg Steger
for finding the issue.
- The definitions for INT_MIN, INT_MAX and UINT_MAX in <limits.h> no
longer use long integer types, as prompted by Steven Solie.
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- Corrected the function prototype for wcspbrk().
- Added function prototypes for mbrtowc_l(), wcscoll_l(), wcscspn() and wcsrchr().
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very much!
- <unistd.h> now also include <stdio.h>, so that the SEEK_SET, etc. macros
are defined for lseek() to use.
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resolution.
- In tcflush() a break signal can no longer cause the read flush loop
to be quit with two semaphores still locked.
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stored in a low level unbuffered file/socket data structure. These function
perform the proper locking and are thus safe to use in a thread-safe environment.
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is defined (along with the typedefs and flags) in <sys/clib2_io.h>. Functions
for tinkering with it are still to come.
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- Added a function prototype for the _exit() function. Note that _exit() is
not an ISO 'C' function.
- Corrected the getopt() function prototype, as prompted by Henning Nielsen Lund.
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- You can now make unlink() stop after a failed deletion attempt which
failed because the object to be deleted was reported as being "in use".
The libunix.a variant defaults to report the deletion to have succeeded
under these circumstances and later tries to delete the files marked
for deletion. See <dos.h> for a brief documentation of how to change
the behaviour.
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return a pointer to a string which can be modified. Now it does. Same
thing for dirname().
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will disable expansion of wildcard patterns passed on the command line.
Note that if the variable is not set then the global variable
'__expand_wildcard_args' will provide the defaults for the switch that
controls whether the wildcard expansion takes place. And after the
environment variable has been checked, the '__expand_wildcard_args_check'
function pointer can still be used to override the switch.
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to avoid that the command line wildcard expansion takes place.
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replaced by the user. If that function __execve_exit() does not call
exit but just returns to the caller without doing anything, execve()
will return the caller with the return code of the RunCommand()
function.
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by Henning Nielsen Lund. Thank you very much!
- atoll() no longer sets 'errno' directly but now calls __set_errno()
instead.
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- Changed how multi-volume assignments are handled by execve().
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Peter Bengtsson. Thank you very much!
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