initialization code for the stdin/stdout/stderr streams and
out of the program parameter setup.
- The current program name is now set up in the stdlib
initialization function.
- Simplified the machine test code; moved the FPU check into
the math initialization code.
- Added more safety checks to verify that file descriptor
file handles are valid.
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a MsgPort locally.
- The record locking semaphore code now builds a semaphore to add
before it tries to find the public one in memory. That way, the
code can spend less time in Forbid() state and, heaven forbid,
refrain from allocating memory while in that state.
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multiple concurrent callers to use the socket functions. Note
that this works only with the Roadshow TCP/IP stack, and the
results with other TCP/IP stacks are rather unpredictable.
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buffer tables so that all the memory allocations are in one
place and it's possible to specify exactly how many table
entries are required at a time.
- Creation and initialization of semaphores now uses the AmigaOS4
specific functions for this purpose, if available.
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into a dedicated module. This also has the advantage that it's
harder to break code by accidentally forgetting to call
InitSemaphore() after having allocated the memory for it.
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routine. We no longer allocate memory and then modify it, but
call a function for each quoted parameter which does whatever is
necessary.
- The shell command parameter parser now considers the non-breaking
space character (ISO code 160) to be a blank space character, too.
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contributed by Peter Bengtsson. Thank you very much!
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absolute Amiga path names passed to it and will use them without
changing them.
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Both the library and the user code need to be rebuilt with the
preprocessor symbol __THREAD_SAFE defined to get thread-safe
code.
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and dirent data operations. That should do it! While the library is
not reentrant (this is not ixemul.library) it should be thread-safe
now. Thread-safe in the sense of POSIX 1003.1c-1995.
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and ftrylockfile().
- Modified the internal FILE structure to allow for thread locking.
Note that this again requires that the library is rebuilt!
- Added or modified macros for getc_unlocked(), getchar_unlocked(),
putc_unlocked() and putchar_unlocked().
- Added rand_r().
- Added flockfile()/funlockfile() wrappers around all stdio
functions.
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parameters (which is by default linked in with libunix.a),
regular expressions can no longer prompt dos.library requesters
to appear. However, to be on the safe side, if you are expecting
to pass regular expressions on the command line, do not use
the wildcard expansion code such as by overriding the library
symbols with dummy functions such as are used in the file
"stdlib_wildcard_expand.c".
- Added a new variable '__open_locale' which can be used to
restrict all library functions to use the "C" language locale
rather than the current system locale settings. In addition
to that, two new functions __locale_exit() and __locale_init()
can be used to close and (re-)open the system locale at a
later time.
- Local ("static") functions are now identified by the STATIC
qualifier. This was done in preparation for changes that will
deal with global and local data and the issue of thread safety.
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function pointers alone. The utility.library/CallHookPkt mechanism
is no longer required.
- Moved the entire lseek() code relevant for files into the hook
function.
- Simplified the close() function which now just calls into the
hook code to perform whatever is necessary. The hook code is
responsible for cleaning up after aliases, etc. This change in
turn made it possible to greatly simplify the hook code for
buffered files which now bypasses close/read/write/lseek and
directly invokes the hook code for unbuffered files.
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the file descriptor hook and into the respective functions,
such as dup2(), fchmod(), fchown(), fcntl(), fdatasync(), fstatfs(),
fsync(), ftruncate() and lseek(). Code which is not strictly
required will no longer find its way into your programs if you
link with the updated library.
NOTE: these changes require that the entire library is rebuilt!
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translate patterns such as "foo/bar/../../baz" properly, and to
use strlen() less.
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<inttypes.h> header files contributed by Peter Bengtsson. Thank
you very much!
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handler. The side-effects were too varied and irritating after all.
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code which initialized them.
- Reading/changing the errno variable is no longer done directly, but
involves accessor functions.
- References to the HUGE_VAL quantity now involve an accessor function, too.
- Changed the manner in which the __huge_val constant is initialized by
the __math_init() function.
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code. Also, the contents of the AnchorPath structure are no longer
modified between calls. MatchEnd() has to be sufficient.
- Moved redundant code out of the readdir()/opendir()/closedir()
functions which is not required unless the code is built for
Unix compatibility mode.
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code. Also, the contents of the AnchorPath structure are no longer
modified between calls. MatchEnd() has to be sufficient.
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modified unless the library is built with the "CHECK_FOR_NULL_POINTERS"
option.
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- Simplified the code in time_asctime_r.c which builds the time
string. It gracefully handles buffer sizes which are too short
by returning an empty string.
- Moved the tm->tm_wday initialization out of the hook function
in time_strftime.c since it was to be called only once anyway.
- Lost a few compiler warnings in unistd_time_delay.c and
time_gettimeofday.c.
- Folded duplicate code in time_mktime.c; also, errno is no longer
modified unless the library is built with the CHECK_FOR_NULL_POINTERS
option.
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so far as used by the the __convert_time() function and the conversion
code in strftime().
- Also changed the algorithm used by strftime() to produce the week numbers
(the '%U' and '%W' format specifiers). The new method is much simpler
than the old one.
- Made the code that converts a 'time_t' value into the 'struct DateStamp',
as used by strftime() and utime(), into its own function. This also
fixes a bug in the code strftime() would use which was completely
unaware of the local time zone settings.
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strftime() and asctime_r(). This one isn't sensitive to the effects of
adding/subtracting the local time zone.
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time, into the number of seconds since January 1st, 1970, relative to
UTC. This didn't really work up until now since the time value returned
was given as local time.
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function.
- The fall-back function for converting time into a string in strftime()
now calls itself for the "%x" and "%X" format specifiers.
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from Workbench would open and stay open. This was not intended to
happen and is a side-effect of the new stdio initialization code which
checks if the stdio streams are in non-blocking mode. Fixed.
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the OS4 header files, but not of the older header file distributions.
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have. This only worked for files which were closed anyway, but not
for the stdio streams. Fixed.
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is now determined at initialization time. The I/O mode is restored before
the program exits. Previously, any changes to the I/O mode would persist.
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out whether read/write accesses are permitted. This decision is now
for the file system to make.
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version of the library.
- Switched over the last use of DeviceProc() to GetDeviceProc(), etc.
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tracks whether or not console output is possible. We now use the
global "__no_standard_io" instead.
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function. Now this could have been big trouble...
- Removed tests for FileHandle->fh_Type != NULL which used to precede
all IsInterative() tests. I verified that IsInteractive() will always
return FALSE for NIL: type file handles.
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compiler settings, which can either default to an unsigned or
signed definition.
- Changed the rules again for the use of stderr/stdout redirection when
printing error messages. It is always safe to redirect them now and
no requester will appear unless you specifically set the value of the
"__no_standard_io" variable to TRUE in your program.
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messages and assertion failure notifications as requesters. The exception
is in redirecting stderr to NIL: which will prompt the requester use.
- gettimeofday() now calls GetSysTime() rather than DateStamp() to obtain
the current system time. This resolves granularity issues since the
DateStamp() result was only accurate by 1/50 of a second.
- The "ptrdiff_t" definition in <stddef.h> now defaults to type 'int' rather
than 'long int'.
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exception are "interactive" files such as console windows. For these
line buffered output is used.
- Whether or not a file is bound to an interactive device, such as a
console window, is now checked and remembered after a file descriptor
has been associated with it.
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at compile time. The default used to be 16 bytes, which is appropriate
for the 68040/68060 but not for the PowerPC, which uses 32 or 128
bytes per cache line.
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to the built-in function.
- Updated the stdio.h, stdlib.h, string.h and unistd.h header files
to declare function prototypes for the __MEM_DEBUG versions of the
library functions only if that preprocessor symbol is defined.
- If a SIGINT signal is caught and processed by the default signal
handler, the localized "*** BREAK" string will be printed rather
than the built-in one.
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management code in the default link library along with the
normal versions. Let's see how well this works out in the GCC
version. SAS/C does not seem to like it...
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malloc/free code itself and updated the alloca code to do its
own data management.
- Finally optimized the alloca() memory cleanup code.
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hits if the program was not launched from Shell. Fixed.
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- Fixed a typo in the hstrerror() function.
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- Added asctime_r(), ctime_r(), gmtime_r(), localtime_r() and strtok_r().
- Added stubs for the Rexx Variables Interface code that used to
be part of amiga.lib. While comparable functionality is available
in rexxsyslib.library V45, the new stubs might be helpful during
porting. Care must be taken since these functions don't work
exactly like the originals.
- Integrated strlcpy() and strlcat() which are intended to be safer
replacements for strncpy() and strncat().
- The program's task priority is now configurable through an external
variable '__priority'.
- The process name to be used when detaching can be configured through
the new '__process_name' variable.
- The minimum required operating system version can be configured
through the new '__minimum_os_lib_version' variable; a matching
error message can be provided through the new '__minimum_os_lib_error'
variable.
- The default console window specification can be overriden through
the new '__stdio_window_specification' variable.
- The socket initialization code did not set up a reference to the
'h_errno' variable correctly. This had the effect of making name
and address resolution errors trash the 'errno' variable instead
and leaving 'h_errno' always set to 0. Fixed.
- For sockets, ioctl() and fcntl() now interact on the FIONBIO/FIOASYNC
requests (ioctl) and the O_NOBLOCK/O_ASYNC flags (fcntl).
- popen() now accepts "rb" and "wb" as mode parameters. However, "r+",
"w+" and variants thereof are still unsupported due to the
unidirectional pipe support in the standard "PIPE:" device.
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