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* sigproc.cc (mychild): Reimplement as list scan.

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(proc_subproc): Don't mess with pinfo if it's myself.
* child_info.h (child_info_types): Label enum for _PROC constants.
(child_info::child_info): New constructor.
(child_info::~child_info): New destructor.
(child_info::sync): Declare new function.
(child_info_fork::child_info_fork): New constructor.
(child_info_spawn::child_info_spawn): Remove old constructor.
(child_info_spawn::child_info_spawn): New constructor.
* dcrt0.cc (dll_crt0_0): Use correct sizeof when doing sanity check on passed
in child_info.  Signal readiness to parent when not forking (and not spawning).
* fork.cc (sync_with_child): Delete.
(resume_child): Remove extra argument.
(sync_with_parent): Use child_info method to sync with parent.
(fork_child): Don't close fork_info->subproc_ready since that is now handled by
the destructor.
(fork_parent): Remove subproc_ready stuff.  Use child_info sync method for
waiting..  Set start time here for child.  Rename "forked" to "child".
(fork): Check ch.subproc_ready for validity here.
* pinfo.h (_pinfo::exec_sendsig): Temp storage for exec stub which may be
staying around to handle non-cygwin captive process.
(_pinfo::exec_dwProcessId): Ditto.
(_pinfo::_lock): Renamed from lock.
(_pinfo::lock): New method.
(_pinfo::unlock): Ditto.
(_pinfo::initialize_lock): Ditto.
* pinfo.cc (set_myself): Use initialize_lock method to initialize myself lock.
Set "exec" fields in _pinfo to zero to indicate that we've started
successfully.  Set start time here when appropriate.
(_pinfo::commune_send): Use pinfo lock/unlock methods.
(proc_waiter): Remove special case for non-cywin processes.  Reinstitute
handling for PID_NOCLDSTOP.
* sigproc.cc (proc_subproc): Set proper EAGAIN errno when process table is
filled.
(sig_send): Use exec_* fields from _pinfo for sending signals if the the _pinfo
sendsig never materializes.
(child_info::child_info): New constructor, renamed from init_child_info.
Zeroes child_info structure and sets appropriate fields in structure based on
chtype.
(child_info::~child_info): New destructor.  Closes subproc_ready if it exists.
(child_info_fork::child_info_fork): New constructor.
(child_info_spawn::child_info_spawn): New constructor.
(child_info::ready): New function.  Signals parent when child is ready.
(child_info::sync): New function.  Wait for child to signal us or process to
die.
(remove_proc): Remove closing of hProcess since this should now be handled
shortly after process creation.
* spawn.cc (spawn_guts): Use child_info_spawn constructor rather than
init_child_info.  Save exec_sendsig and exec_dwProcessId in execing _pinfo.
Rely on child_info constructor to properly set parent_wr_proc_pipe in ciresrv.
Revert to previous determination on whether to start a process in suspended
mode.  Remove reparenting stuff.  Just keep a stub around if starting a
non-cygwin process.
This commit is contained in:
Christopher Faylor
2004-12-05 19:41:26 +00:00
parent d54b79d351
commit 54dd79bb44
9 changed files with 501 additions and 376 deletions
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36
winsup/cygwin/include/sys/cygwin.h
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@ -87,24 +87,24 @@ unsigned long cygwin_internal (cygwin_getinfo_types, ...);
/* Flags associated with process_state */
enum
{
PID_IN_USE = 0x0001, /* Entry in use. */
PID_ZOMBIE = 0x0002, /* Child exited: no parent wait. */
PID_STOPPED = 0x0004, /* Waiting for SIGCONT. */
PID_TTYIN = 0x0008, /* Waiting for terminal input. */
PID_TTYOU = 0x0010, /* Waiting for terminal output. */
PID_ORPHANED = 0x0020, /* Member of an orphaned process group. */
PID_ACTIVE = 0x0040, /* Pid accepts signals. */
PID_CYGPARENT = 0x0080, /* Set if parent was a cygwin app. */
PID_MAP_RW = 0x0100, /* Flag to open map rw. */
PID_MYSELF = 0x0200, /* Flag that pid is me. */
PID_NOCLDSTOP = 0x0400, /* Set if no SIGCHLD signal on stop. */
PID_INITIALIZING = 0x0800, /* Set until ready to receive signals. */
PID_USETTY = 0x1000, /* Setting this enables or disables cygwin's */
/* tty support. This is inherited by */
/* all execed or forked processes. */
PID_ALLPIDS = 0x2000, /* child has execed */
PID_EXECED = 0x4000, /* redirect to original pid info block */
PID_NOREDIR = 0x8000, /* don't redirect if execed */
PID_IN_USE = 0x00001, /* Entry in use. */
PID_ZOMBIE = 0x00002, /* Child exited: no parent wait. */
PID_STOPPED = 0x00004, /* Waiting for SIGCONT. */
PID_TTYIN = 0x00008, /* Waiting for terminal input. */
PID_TTYOU = 0x00010, /* Waiting for terminal output. */
PID_ORPHANED = 0x00020, /* Member of an orphaned process group. */
PID_ACTIVE = 0x00040, /* Pid accepts signals. */
PID_CYGPARENT = 0x00080, /* Set if parent was a cygwin app. */
PID_MAP_RW = 0x00100, /* Flag to open map rw. */
PID_MYSELF = 0x00200, /* Flag that pid is me. */
PID_NOCLDSTOP = 0x00400, /* Set if no SIGCHLD signal on stop. */
PID_INITIALIZING = 0x00800, /* Set until ready to receive signals. */
PID_USETTY = 0x01000, /* Setting this enables or disables cygwin's
tty support. This is inherited by
all execed or forked processes. */
PID_ALLPIDS = 0x02000, /* used by pinfo scanner */
PID_EXECED = 0x04000, /* redirect to original pid info block */
PID_NOREDIR = 0x08000, /* don't redirect if execed */
PID_EXITED = 0x80000000 /* Free entry. */
};