[gtk-gnutella-announce] GTKG 1.1.9 has been released

[Raphael M. <Rap...@po...>]

Dear Gnutella fans,

Release 1.1.9 has just been pushed out to Sourceforge.  Here is the Changelog entry:

# v 1.1.9   2016-03-06  [stable]

This is mostly a bug-fixing release.

It fixes an important bug in the UPnP discovery path that led to a crash when
it found more than one UPnP device on the network.

It also introduces a new Glossary that can be displayed to explain some terms
that may be hard to understand for newcomers, so that they may in turn benefit
from the tooltips and the information in the FAQ.

On Windows, one important change is that we now force all memory allocations
from the external DLLs to use our own malloc() implementation.  This proves
that one of the DLLs is exhibiting a memory leak.  Plugging that leak will
unfortunately require that a garbage collector be implemented.  Measurements
indicate that 4K leak every second on average, which eventually leads to an
out-of-memory crash after a few days (2 to 3), preventing high uptimes on
Windows.  The leak is not originating from gtk-gnutella's code.

Improvements:
- [GTK2] Added menu to display the new glossary window.

Bug Fixes:
- Define PTHREAD_STACK_MIN to 0 in case it is not supplied by <pthread.h>.
- can_become_ultra(): don't account for upload fds if no upload will take place.
- compat_sleep_ms(): fixed the fallback implementation using compat_poll().
- dht_route_parse(): ensure we never use uninitialized variables.
- entropy_collect_host(): no longer attempt to get the host IP addresses.
- file_locate_from_path(): if pathname is qualified, duplicate argument!
- ftw_foreach(): prevent memory leak on error path.
- thread_lock_deadlock(): avoid de-referencing NULL if possible.
- upnp_discovered(): avoid segfault when we have to pick the first device.

Under the Hood:
- Disable warnings about the mem vtable being deprecated in recent glib.
- Suspend threads created after a global suspension is in effect.
- Warn when we cannot find a thread to record / release a lock.
- Added a new crash-level for deadlocks.
- Added optional debugging code to track reading threads on a read-write lock.
- Added spinlock_in_crash_mode_raw() for raw spinlocks to avoid deadly recursion.
- Additional debugging code to track read spots per thread on a read-write lock.
- Added backtrace capture when threads are contending for a lock.
- On deadlocks, suspend the other threads and log origin quickly before handling.
- New strategy in lock "deadlock" routines: ignore when in pass-through mode.
- Do not perturb the lock waiting state of the crashing thread on a deadlock.
- Revisited thread_lock_deadlock().
- Check for stack overflowing each time a lock is grabbed and recorded.
- Added thread diversion support.
- Added thread_halt() to forcefully halt concurrently crashing threads.
- Refactored memory checks to avoid systematic locking in mem_is_valid_ptr().
- Try to divert crash processing to main thread when triggered in a sub-thread.
- On deadlock condition, attempt to collect stacktraces of other threads.
- Add the current process PID and the last crash level to the crash log.
- Use raw logging routines in spinlock / mutex deadlock tracing.
- Added crash_getpid() for safe original PID computation, even across a fork().
- Add dump of all the thread stacks to the crash log if we can't fork().
- Moved equiv() and implies() definitions to "casts.h".
- Added xxx_to_string_grp() to optionally format xxx with thousand groupping.
- Adding win32 dynamic library patcher to trap malloc() in all required DLLs.
- Windows: with win32dlp, no need for monitoring committed memory.
- Renaming of legacy G_GNUC_XXX into G_XXX for concision.
- Renamed G_N_ELEMENTS as N_ITEMS.
- Moved gcc-specific macros to a dedicated file.
- Added pragmas to shut up spurious warnings with the clang 3.4.1 compiler.
- On the lock recording path, we can now use thread_get_element() safely.
- Made sure symbols are thread-safe and properly locked.
- If stacktrace dumps could intertwine, prefix the second with the thread ID.
- Allow for nested lock waiting sequences.
- Added SIGSYS to the list of harmful signals we want to catch.
- Added THREAD_F_WAIT to let thread_create() wait for the new thread to start.
- Windows: was not reconstructing correct stack frame pointer for WINAPI calls.
- Windows: improved backtracing through routines using a large amount of stack.
- Made signal_enter_critical() and signal_leave_critical() thread-safe.
- Made signal_in_handler() thread-safe.
- No longer block signals when waiting for a read-write lock.
- Prevent signals during logging, to avoid recursion if logging from handler.
- rwlock: when waiting for too long, deadlock only when no activity is seen.
- Added hash_table_is_locked().
- Added compat_gettid() and use it to record the system thread ID.
- Added support for thread_interrupt() and thread_os_kill().
- Windows: make sure s_read() can return EINTR and handle it properly.
- Windows: added support for sigprocmask(), sigsuspend() and friends.
- xmalloc: count and loudly trace allocation attempts made from signal handler.
- omalloc: loudly warn when invoked from signal handler.
- VMM: warn when memory allocation / freeing attempted from signal handler.
- VMM: use groupped formatting for region sizes or large numbers.
- Make sure we do not dispatch thread signals when running in an interrupt.
- Added s_minicarp_once() and a circular buffer to avoid memory allocation.
- Monitor when we issue blocking syscalls to flag signal handlers as safe/unsafe.
- Added plumbing to allow longjmp() or siglongjmp() in a signal handler.
- booleanize(): use version not causing any jump, for speed.
- clamp_strlen(): use same optimization as utf8_strlen() to compute length.
- mingw_analyze_prologue(): fixed MOVL immediate offset parsing.
- mingw_exception_log(): simplify processing on stack overflows.
- mingw_getdtablesize(): don't call _getmaxstdio(), hardwire 2048 instead.
- mingw_signal(): only call signal() for SIGSEGV.
- mingw_sigraise(): only log sent signal when asked to.
- mingw_waitpid(): fixed compilation warning given that WAIT_OBJECT_0 is 0.
- mingw_win2posix(): added mapping for ERROR_INVALID_USER_BUFFER.
- mingw_win2posix(): added mapping of ERROR_NO_SYSTEM_RESOURCES to ENOMEM.
- mingw_write(): for Windows 7 and maybe later, do not call write().
- mutex_is_owned(): optimized by avoiding thread_self() call if mutex not locked.
- prop_save_to_file(): use file's timestamp, not the current time.
- rwlock_not_owned(): ignore errors when the rwlock layer is in pass-through.
- s_logv(): made recursion detection thread-safe.
- s_logv(): use raw time computation when running in signal handler.
- s_minierror(): enhanced to enter crash mode immediately and show thread ID.
- s_rawlogv(): force "raw" mode when running in a signal handler.
- s_stacktrace(): downgrade from decorated to plain stack before skipping traces.
- signal_name(): added more items to signals[], so cache linear lookup result.
- spinlock_grab_try_from(): no crashing mode, don't say we locked if we couldn't.
- stacktrace_get_symbols(): make sure we're running this only once.
- stacktrace_unwind(): detect recursion in a thread-safe way.
- stacktrace_unwind(): use gcc-style unwinding if recursing or within malloc.
- str_vncatf(): added verbose assertion to ensure string is not overflowing.
- symbols_name_only(): simplified code.
- symbols_name_only(): simplify processing if we don't have to format an offset.
- thread_check_suspended(): account for thread_find() returning NULL.
- thread_cond_waiting_element(): don't create the cond stack until necessary.
- thread_exiting(): do not reset the QID range on Windows for an exiting thread.
- thread_id_name(): be robust if called during crashes.
- thread_launch_trampoline(): do not harvest entropy, this slows down creation.
- thread_lock_got_swap(): missed accounting of new lock in discovered thread.
- thread_lock_waiting_element(): warn when we detect recursive lock waiting.
- thread_preallocate_element(): also pre-allocate the lock stack.
- thread_sig_handle(): don't handle signals if thread is supposed to be blocked.
- thread_small_id(): bet on the QID lookup success.
- thread_sp(): simpler version defeating compiler optimizations.
- tm_localtime_raw(): use exact time, as this is used during logging.
- xmalloc_thread_alloc(): refuse to allocate if within a signal handler.

Enjoy!

Raphael