Merged signals-merge branch into trunk with the following changes:
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
handlers have been moved to teams. Fixes #5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
of the real-time signal range. Closes #1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes #6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
[set]itimer(). Closes #5682.
* Implemented support for thread cancellation. Closes #5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes #7554.
* Lots over smaller more or less related changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96

Optimised passing around of timezone a bit
* _kern_[sg]et_timezone() now accepts/passes out the timezone name, too
* adjust Time preflet and clockconfig to pass the timezone name into the kernel
when calling _kern_set_timezone()
* ajust implementation of tzset() to fetch the timezone name from the kernel
via _kern_get_timezone() instead of reading 'libroot_timezone_info'
* the Time preflet no longer writes 'libroot_timezone_info'


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38164 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added missing 'void' to make the get_timezone_offset() declaration a proper
prototype and not just a forward


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37910 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added get_timezone_offset() to kernel, which returns the offset in seconds
* made FAT add-on use get_timezone_offset(), this time correctly adjusted for
the difference in units (minutes/seconds)
This makes the times in our FAT-fs agree with Linux again, at least :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37905 a95241bf-73f2-0310-859d-f6bbb57e9c96

More consolidation of timezone code:
* dropped DaylightSavingTime from real_time_clock code in kernel, it was
never really being used for what it meant (and just being referred to by
gettimeofday(), which put a different meaning to it
* adjusted the syscalls get_timezone() & set_timezone() as well as their callers
accordingly
* got rid of get_rtc_info() and rtc_info struct in kernel, as it was only
being referred to by the FAT add-on and that one (like gettimeofday()) put a
different meaning to tz_minuteswest. Added a comment to FAT's util.c
showing a possible solution, should the hardcoded GMT timezone pose a problem.
* fixed declaration of gettimeofday() to match POSIX base specs, issue 7
* changed implementation of gettimeofday() to not bother trying to fill struct
timezone - it was using wrong values before, anyway.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37888 a95241bf-73f2-0310-859d-f6bbb57e9c96

Made some progress with consolidation of timezone-related code:
* renamed syscalls _kern_[gs]et_tzfilename
to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings'
to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting
the RTC info


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by Julun: time computations based on an algorithm by Fliegel,
and van Flandern (1968), instead of those inefficient loops we had before.
Thanks!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22557 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a _kern_get_timezone() syscall that can be used without needing to
re-evaluate the timezone file over and over.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16785 a95241bf-73f2-0310-859d-f6bbb57e9c96

Pulled the conversion between seconds since the epoche and the split up
(year, month,...) representation out of the x86 specific code and put
respective support functions into real_time_clock.c. We'll need those
for the PPC specific part too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15827 a95241bf-73f2-0310-859d-f6bbb57e9c96

added get_rtc_info, needed in the kernel for services which use local timestamps such as the dos filesystem


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10463 a95241bf-73f2-0310-859d-f6bbb57e9c96

reverted to rtc_boot_time


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10281 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved _user_system_time() to real_time_clock.c.
Renamed _user_set_tzspecs() to _user_set_timezone().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10252 a95241bf-73f2-0310-859d-f6bbb57e9c96

added _user_get_tzfilename
renamed rtc_boot_time to rtc_system_time_offset


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10190 a95241bf-73f2-0310-859d-f6bbb57e9c96

added _user_set_tzfilename
removed set_tzspecs, which was useless; now done in user_set_tzspecs


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10176 a95241bf-73f2-0310-859d-f6bbb57e9c96

added timezone_offset and dst_observed fields to real_time_data
added prototypes for set_tzspecs, used for setting these fields


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10132 a95241bf-73f2-0310-859d-f6bbb57e9c96

The set_read_time_clock() syscall now returns a status_t to be able to
indicate failure.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9803 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added the syscall for set_real_time_clock().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5187 a95241bf-73f2-0310-859d-f6bbb57e9c96

rtc_set_system_time() is no longer needed.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5146 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied our style guide, made the headers C++ safe.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5139 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added real-time clock support written by Jeff Ward (for the kernel).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5137 a95241bf-73f2-0310-859d-f6bbb57e9c96

Merged signals-merge branch into trunk with the following changes:
* Reorganized the kernel locking related to threads and teams.
* We now discriminate correctly between process and thread signals. Signal
handlers have been moved to teams. Fixes #5679.
* Implemented real-time signal support, including signal queuing, SA_SIGINFO
support, sigqueue(), sigwaitinfo(), sigtimedwait(), waitid(), and the addition
of the real-time signal range. Closes #1935 and #2695.
* Gave SIGBUS a separate signal number. Fixes #6704.
* Implemented <time.h> clock and timer support, and fixed/completed alarm() and
[set]itimer(). Closes #5682.
* Implemented support for thread cancellation. Closes #5686.
* Moved send_signal() from <signal.h> to <OS.h>. Fixes #7554.
* Lots over smaller more or less related changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42116 a95241bf-73f2-0310-859d-f6bbb57e9c96

Optimised passing around of timezone a bit
* _kern_[sg]et_timezone() now accepts/passes out the timezone name, too
* adjust Time preflet and clockconfig to pass the timezone name into the kernel
when calling _kern_set_timezone()
* ajust implementation of tzset() to fetch the timezone name from the kernel
via _kern_get_timezone() instead of reading 'libroot_timezone_info'
* the Time preflet no longer writes 'libroot_timezone_info'


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38164 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added missing 'void' to make the get_timezone_offset() declaration a proper
prototype and not just a forward


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37910 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added get_timezone_offset() to kernel, which returns the offset in seconds
* made FAT add-on use get_timezone_offset(), this time correctly adjusted for
the difference in units (minutes/seconds)
This makes the times in our FAT-fs agree with Linux again, at least :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37905 a95241bf-73f2-0310-859d-f6bbb57e9c96

More consolidation of timezone code:
* dropped DaylightSavingTime from real_time_clock code in kernel, it was
never really being used for what it meant (and just being referred to by
gettimeofday(), which put a different meaning to it
* adjusted the syscalls get_timezone() & set_timezone() as well as their callers
accordingly
* got rid of get_rtc_info() and rtc_info struct in kernel, as it was only
being referred to by the FAT add-on and that one (like gettimeofday()) put a
different meaning to tz_minuteswest. Added a comment to FAT's util.c
showing a possible solution, should the hardcoded GMT timezone pose a problem.
* fixed declaration of gettimeofday() to match POSIX base specs, issue 7
* changed implementation of gettimeofday() to not bother trying to fill struct
timezone - it was using wrong values before, anyway.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37888 a95241bf-73f2-0310-859d-f6bbb57e9c96

Made some progress with consolidation of timezone-related code:
* renamed syscalls _kern_[gs]et_tzfilename
to _kern_[gs]et_real_time_clock_is_gmt, as the filename part is no longer
relevant (and the two corresponding parameters were removed)
* C++-ified and reworked clockconfig to use the info from 'Time settings'
to setup the timezone info during boot
* removed invocation of _kern_get_tzfilename() from tzset(), as the syscall
no longer exists and tzset() is currently broken anyway
* adjusted the Time preflet to use the renamed syscall when getting/setting
the RTC info


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37881 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied patch by Julun: time computations based on an algorithm by Fliegel,
and van Flandern (1968), instead of those inefficient loops we had before.
Thanks!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22557 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added a _kern_get_timezone() syscall that can be used without needing to
re-evaluate the timezone file over and over.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16785 a95241bf-73f2-0310-859d-f6bbb57e9c96

Pulled the conversion between seconds since the epoche and the split up
(year, month,...) representation out of the x86 specific code and put
respective support functions into real_time_clock.c. We'll need those
for the PPC specific part too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15827 a95241bf-73f2-0310-859d-f6bbb57e9c96

added get_rtc_info, needed in the kernel for services which use local timestamps such as the dos filesystem


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10463 a95241bf-73f2-0310-859d-f6bbb57e9c96

reverted to rtc_boot_time


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10281 a95241bf-73f2-0310-859d-f6bbb57e9c96

Moved _user_system_time() to real_time_clock.c.
Renamed _user_set_tzspecs() to _user_set_timezone().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10252 a95241bf-73f2-0310-859d-f6bbb57e9c96

added _user_get_tzfilename
renamed rtc_boot_time to rtc_system_time_offset


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10190 a95241bf-73f2-0310-859d-f6bbb57e9c96

added _user_set_tzfilename
removed set_tzspecs, which was useless; now done in user_set_tzspecs


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10176 a95241bf-73f2-0310-859d-f6bbb57e9c96

added timezone_offset and dst_observed fields to real_time_data
added prototypes for set_tzspecs, used for setting these fields


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10132 a95241bf-73f2-0310-859d-f6bbb57e9c96

The set_read_time_clock() syscall now returns a status_t to be able to
indicate failure.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9803 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added the syscall for set_real_time_clock().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5187 a95241bf-73f2-0310-859d-f6bbb57e9c96

rtc_set_system_time() is no longer needed.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5146 a95241bf-73f2-0310-859d-f6bbb57e9c96

Applied our style guide, made the headers C++ safe.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5139 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added real-time clock support written by Jeff Ward (for the kernel).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5137 a95241bf-73f2-0310-859d-f6bbb57e9c96