queried in waitsig later.
* sigproc.cc (wait_sig): Don't deliver a signal if in a vfork.
* fork.cc (vfork): Deliver all signals on parent return from vfork.
(cygheap_setup_for_child): Accept new argument controlling whether to delay
copying of cygheap to shared memory region.
(cygheap_setup_for_child_cleanup): Accept new arguments controlling whether to
copy cygheap at this point.
* cygheap.h: Reflect above changes.
* fork.cc (fork_parent): Break copying of cygheap into two parts when
fork_fixup is required so that the child can see the parent's changes.
(vfork): Do stack cleanup prior to forcing a fork error.
* spawn.cc (spawn_guts): Ditto.
* autoload.cc (LoadDLLfuncEx): Auto load TryEnterCriticalSection - its a
n NT only call.
* thread.cc (pthread_cond::TimedWait): Use critical sections for NT.
(pthread_cond::fixup_after_fork): Don't detect bad apps.
(pthread_mutex::pthread_mutex): Use critical sections for NT.
(pthread_mutex::~pthread_mutex): Ditto.
(pthread_mutex::Lock): Ditto.
(pthread_mutex::TryLock): Ditto.
(pthread_mutex::UnLock): Ditto.
(pthread_mutex::fixup_after_fork): Ditto. Also do not detect bad apps.
(__pthread_mutex_trylock): Move WIN32 specific test into the class metho
d.
(__pthread_mutex_destroy): Prevent dereferencing passed pointer without
valid address.
* thread.h (pthread_mutex): Use critical sections for NT.
* dcrt0.cc (cygwin_finished_initializing): Copy _mtinterf on fork;
* fork.cc (fork_child): fixup thread-related structures after fork;
* thread.cc (MTinterface::Init): Initialise the new mutex, condition and semaphore lists.
(MTinterface::fixup_after_fork): Iterate through each list and fixup the objects.
(pthread_cond::pthread_cond): Add this to the condition list.
(pthread_cond::~pthread_cond): Remove this from the condition list.
(pthread_cond::fixup_after_fork): Recreate as best we can the pre-fork state.
(pthread_mutex::pthread_mutex): Add this to the mutex list.
(pthread_mutex::~pthread_mutex): Remove this from the mutex list.
(pthread_mutex::fixup_after_fork): Recreate as best we can the pre-fork state.
(semaphore::semaphore): Store the initial value, and add this to the semaphore list.
(semaphore::~semaphore): Remove this from the semaphore list.
(semaphore::Post): Increment the current semaphore value.
(semaphore::TryWait): Decrement the current semaphore value.
(semaphore::Wait): Ditto.
(semaphote::fixup_after_fork): Recreate the pre-fork state as best we can.
* thread.h (pthread_mutex): New members to allow fixup_after_fork.
(pthread_cond): Ditto.
(semaphore): Ditto.
(MTinterface): New list heads for tracking conds and semaphores.
forced to start at the same place in execed process.
* heap.cc: Remove brk* macros for clarity throughout.
* heap.h: Ditto.
* shared.cc (shared_info::initialize): Move heap_chunk test into
heap_chunk_size().
(heap_chunk_size): Check for chunk size here. Don't go to registry if
heap_chunk_in_mb is already set.
* smallprint.c (console_printf): Add Windows 95 concessions.
a change in /etc.
* cygheap.h (struct init_cygheap): Add member `etc_changed_h'
and method `etc_changed'.
* grp.cc (enum grp_state): Eliminate.
(class grp_check): Ditto.
(group_state): Define as `class pwdgrp_check'.
(parse_grp): Remeber path and modification time of /etc/group file.
* passwd.cc (enum_pwd_state): Eliminate.
(class pwd_check): Ditto.
(passwd_state): Define as `class pwdgrp_check'.
(read_etc_passwd): Remember path and modification time of /etc/passwd
file.
* pwdgrp.h: New file.
(enum pwdgrp_state): Substitutes `pwd_state' and `grp_state'.
(class pwdgrp_check): Substitutes `pwd_check' and `grp_check'.
Corinna Vinschen
Christopher Faylor
Egor Duda
Robert Collins