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* dcrt0.cc (dll_crt0_0): Remove hexec_proc stuff. * fork.cc (fork_child): Remove call to pinfo_fixup_after_fork. * pinfo.cc (set_myself): Close and zero pid_handle if set. (pinfo_fixup_after_fork): Delete. (proc_waiter): Don't close vchild.hProcess here. Do that when we are remove the vchild from procs. Save hProcess as pid_handle only on first reparent operation. (pinfo::wait): Don't set pid_handle here. (pinfo::alert_parent): Always try to send signal. If unsuccessful then close and zero wr_proc_pipe. * pinfo.h (pinfo::pinfo): Make sure that appropriate parts of the class are zeroed on construction. (pinfo::alert_parent): Take char argument. (pinfo_fixup_after_fork): Delete declaration. (hexec_proc): Ditto. * sigproc.cc (remove_proc): Close pid_handle and hProcess if appropriate. * spawn.cc (spawn_guts): Set cygheap->pid_handle on first exec. * cygheap.h (init_cygheap::pid_handle): New element. * pinfo.cc (set_myself): Clear previously existing cygheap->pid_handle when a new process has been started. (pinfo::wait): Make sure that a handle to the newly forked/spawned process is kept around so that the pid will not be reused. * pinfo.h (_pinfo::pid_handle): Move. (pinfo::pid_handle): to here. * spawn.cc (spawn_guts): Create a pid_handle in cygheap prior to spawning to ensure that the pid does not get reused during the lifetime of the "cygwin pid". * pinfo.h (pinfo::alert_parent): New function. * exceptions.cc (sig_handle_tty_stop): Use alert_parent to send "signals" to parent. * fork.cc (fork_parent): Don't close pi.hProcess. Let the waiter thread do that. * pinfo.cc (proc_waiter): Detect case where process exits without setting the exit code and use value from GetExitCodeProcess. Reluctantly implement __SIGREPARENT. (pinfo::alert_parent): Define. * sigproc.h (__SIGREPARENT): New enum. * spawn.cc (spawn_guts): Send reparent signal to parent on exec. Always create process in suspended state to avoid races. Remove cygthread.h in favor of cygtls.h throughout since cygtls now includes cygthread.h. Eliminate ppid_handle usage throughout. * child_info.h: Regenerate magic number (child_info): Remove pppid_handle. * cygthread.h (cygthread::release): New method. Frees thread without waiting. * cygthread.cc (cygthread::stub): Set _ctinfo in _mytls to point to information for executing thread. Don't call SetEvent if thread is no longer in use. (cygthread::simplestub): Ditto. * cygtls.h (_cygtls::_ctinfo): New element contains pointer to information about executing cygthread, if any. * dcrt0.cc: Remove last vestiges of per_thread stuff. (dll_crt0_0): Ditto. Remove accommodation for ppid_handle. (do_exit): Remove obsolete reparenting test. (_exit): Exit with a more SUSv3-like exit value. * dtable.cc (dtable::stdio_init): Check for myself->cygstarted rather than myself->ppid_handle to see if we were started by a cygwin process. * exceptions.cc (open_stackdumpfile): Ditto. (handle_exceptions): Ditto. (ctrl_c_handler): Ditto. (sig_handle_tty_stop): Ditto. Let parent send signal to itself on STOP. (sigpacket::process): Comment out vfork test. (signal_exit): Use more SUSv3-like exit value on signal. * external.cc (fillout_pinfo): Don't set hProcess. * fork.cc: Remove VFORK cruft. (per_thread::set): Delete. (fork_child): Remove perthread stuff. (fork_parent): Remove obsolete subproc_init. Accommodate new method for tracking subprocesses. * pinfo.cc (set_myself): Accommodate new pinfo/_pinfo layout. Set some things here that used to be set in wait_sig. (_pinfo::exit): Set exitcode here. Close process pipe. (_pinfo::commune_send): Accommodeate new pinfo/_pinfo layout. (proc_waiter): New function. Waits, in a thread for subprocess to go away. (pinfo::wait): New function. Initialization for proc_waiter. * pinfo.h (_pinfo::exitcode): New element. (_pinfo::cygstarted): Ditto. (_pinfo::wr_proc_pipe): Ditto. (_pinfo::ppid_handle): Delete. (_pinfo::hProcess): Delete. (_pinfo::lock): Delete. (pinfo::hProcess): New element. (pinfo::lock): Ditto. (pinfo::wait): Declare new function. (pinfo::preserve): Define new function. * sigproc.cc: Remove old stuff from wait_subproc thread based method. (zombies): Remove. (procs): New. (my_parent_is_alive): Just check that the parent pid exists. (mychild): Just use pinfo methods to determine if child is mine. (proc_subproc): Revamp PROC_ADDCHILD to use pinfo::wait. Remove PROC_CHILDTERMINATED logic. Use different method to remove processes from list when SIGCHLD == SIG_IGN. (proc_terminate): Gut. (subproc_init): Delete. (init_child_info): Remove setting of pppid_handle. (checkstate): Revamp to only scan procs array. (remove_proc): Rename from remove_zombie. Don't close hProcess or pid_handle. Don't release memory if it's myself. (stopped_or_terminated): Change logic to handle new consolidated proc/zombie array. (wait_subproc): Delete. * sigproc.h: Remove obsolete EXIT_* defines. (subproc_init): Remove declaration. * spawn.cc (spawn_guts): Remove reparenting stuff. Use standard wait logic to wait for child if started from a non-cygwin process. * tlsoffsets.h: Regenerate. * tty.cc (tty_init): Check for myself->cygstarted rather than myself->ppid_handle to see if we were started by a cygwin process. * include/sys/signal.h (external_pinfo::exitcode): Replace hProcess. * include/sys/wait.h (WCOREDUMP): Define. * fhandler_tty.cc (fhandler_tty_slave::read): Add debugging output for timeout case. * signal.cc (abort): Flag that we are exiting with the ABORT signal.
266 lines
8.1 KiB
C++
266 lines
8.1 KiB
C++
/* sys/cygwin.h
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Copyright 1997, 1998, 2000, 2001, 2002 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _SYS_CYGWIN_H
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#define _SYS_CYGWIN_H
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern pid_t cygwin32_winpid_to_pid (int);
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extern void cygwin32_win32_to_posix_path_list (const char *, char *);
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extern int cygwin32_win32_to_posix_path_list_buf_size (const char *);
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extern void cygwin32_posix_to_win32_path_list (const char *, char *);
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extern int cygwin32_posix_to_win32_path_list_buf_size (const char *);
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extern int cygwin32_conv_to_win32_path (const char *, char *);
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extern int cygwin32_conv_to_full_win32_path (const char *, char *);
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extern void cygwin32_conv_to_posix_path (const char *, char *);
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extern void cygwin32_conv_to_full_posix_path (const char *, char *);
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extern int cygwin32_posix_path_list_p (const char *);
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extern void cygwin32_split_path (const char *, char *, char *);
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extern pid_t cygwin_winpid_to_pid (int);
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extern int cygwin_win32_to_posix_path_list (const char *, char *);
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extern int cygwin_win32_to_posix_path_list_buf_size (const char *);
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extern int cygwin_posix_to_win32_path_list (const char *, char *);
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extern int cygwin_posix_to_win32_path_list_buf_size (const char *);
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extern int cygwin_conv_to_win32_path (const char *, char *);
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extern int cygwin_conv_to_full_win32_path (const char *, char *);
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extern int cygwin_conv_to_posix_path (const char *, char *);
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extern int cygwin_conv_to_full_posix_path (const char *, char *);
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extern int cygwin_posix_path_list_p (const char *);
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extern void cygwin_split_path (const char *, char *, char *);
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struct __cygwin_perfile
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{
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const char *name;
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unsigned flags;
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};
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/* External interface stuff */
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typedef enum
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{
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CW_LOCK_PINFO,
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CW_UNLOCK_PINFO,
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CW_GETTHREADNAME,
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CW_GETPINFO,
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CW_SETPINFO,
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CW_SETTHREADNAME,
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CW_GETVERSIONINFO,
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CW_READ_V1_MOUNT_TABLES,
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CW_USER_DATA,
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CW_PERFILE,
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CW_GET_CYGDRIVE_PREFIXES,
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CW_GETPINFO_FULL,
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CW_INIT_EXCEPTIONS,
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CW_GET_CYGDRIVE_INFO,
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CW_SET_CYGWIN_REGISTRY_NAME,
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CW_GET_CYGWIN_REGISTRY_NAME,
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CW_STRACE_TOGGLE,
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CW_STRACE_ACTIVE,
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CW_CYGWIN_PID_TO_WINPID,
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CW_EXTRACT_DOMAIN_AND_USER,
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CW_CMDLINE,
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CW_CHECK_NTSEC,
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CW_GET_ERRNO_FROM_WINERROR,
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CW_GET_POSIX_SECURITY_ATTRIBUTE,
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CW_GET_SHMLBA,
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CW_GET_UID_FROM_SID,
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CW_GET_GID_FROM_SID,
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CW_GET_BINMODE
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} cygwin_getinfo_types;
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#define CW_NEXTPID 0x80000000 /* or with pid to get next one */
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unsigned long cygwin_internal (cygwin_getinfo_types, ...);
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/* Flags associated with process_state */
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enum
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{
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PID_IN_USE = 0x0001, /* Entry in use. */
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PID_ZOMBIE = 0x0002, /* Child exited: no parent wait. */
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PID_STOPPED = 0x0004, /* Waiting for SIGCONT. */
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PID_TTYIN = 0x0008, /* Waiting for terminal input. */
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PID_TTYOU = 0x0010, /* Waiting for terminal output. */
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PID_ORPHANED = 0x0020, /* Member of an orphaned process group. */
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PID_ACTIVE = 0x0040, /* Pid accepts signals. */
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PID_CYGPARENT = 0x0080, /* Set if parent was a cygwin app. */
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PID_MAP_RW = 0x0100, /* Flag to open map rw. */
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PID_MYSELF = 0x0200, /* Flag that pid is me. */
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PID_NOCLDSTOP = 0x0400, /* Set if no SIGCHLD signal on stop. */
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PID_INITIALIZING = 0x0800, /* Set until ready to receive signals. */
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PID_USETTY = 0x1000, /* Setting this enables or disables cygwin's */
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/* tty support. This is inherited by */
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/* all execed or forked processes. */
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PID_ALLPIDS = 0x2000, /* child has execed */
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PID_EXECED = 0x4000, /* redirect to original pid info block */
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PID_NOREDIR = 0x8000, /* don't redirect if execed */
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PID_EXITED = 0x80000000 /* Free entry. */
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};
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#ifdef WINVER
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#ifdef _PATH_PASSWD
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extern HANDLE cygwin_logon_user (const struct passwd *, const char *);
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#endif
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/* This lives in the app and is initialized before jumping into the DLL.
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It should only contain stuff which the user's process needs to see, or
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which is needed before the user pointer is initialized, or is needed to
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carry inheritance information from parent to child. Note that it cannot
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be used to carry inheritance information across exec!
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Remember, this structure is linked into the application's executable.
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Changes to this can invalidate existing executables, so we go to extra
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lengths to avoid having to do it.
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When adding/deleting members, remember to adjust {public,internal}_reserved.
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The size of the class shouldn't change [unless you really are prepared to
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invalidate all existing executables]. The program does a check (using
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SIZEOF_PER_PROCESS) to make sure you remember to make the adjustment.
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*/
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#ifdef __cplusplus
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class ResourceLocks;
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class MTinterface;
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#endif
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struct per_process
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{
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char *initial_sp;
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/* The offset of these 3 values can never change. */
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/* magic_biscuit is the size of this class and should never change. */
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unsigned long magic_biscuit;
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unsigned long dll_major;
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unsigned long dll_minor;
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struct _reent **impure_ptr_ptr;
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char ***envptr;
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/* Used to point to the memory machine we should use. Usually these
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point back into the dll, but they can be overridden by the user. */
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void *(*malloc)(size_t);
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void (*free)(void *);
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void *(*realloc)(void *, size_t);
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int *fmode_ptr;
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int (*main)(int, char **, char **);
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void (**ctors)(void);
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void (**dtors)(void);
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/* For fork */
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void *data_start;
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void *data_end;
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void *bss_start;
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void *bss_end;
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void *(*calloc)(size_t, size_t);
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/* For future expansion of values set by the app. */
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void (*premain[4]) (int, char **, struct per_process *);
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/* The rest are *internal* to cygwin.dll.
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Those that are here because we want the child to inherit the value from
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the parent (which happens when bss is copied) are marked as such. */
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/* non-zero of ctors have been run. Inherited from parent. */
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int run_ctors_p;
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DWORD unused[7];
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/* Non-zero means the task was forked. The value is the pid.
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Inherited from parent. */
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int forkee;
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HMODULE hmodule;
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DWORD api_major; /* API version that this program was */
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DWORD api_minor; /* linked with */
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/* For future expansion, so apps won't have to be relinked if we
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add an item. */
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DWORD unused2[5];
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#if defined (__INSIDE_CYGWIN__) && defined (__cplusplus)
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ResourceLocks *resourcelocks;
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MTinterface *threadinterface;
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#else
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void *resourcelocks;
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void *threadinterface;
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#endif
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struct _reent *impure_ptr;
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};
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#define per_process_overwrite ((unsigned) &(((struct per_process *) NULL)->resourcelocks))
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extern void cygwin_premain0 (int argc, char **argv, struct per_process *);
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extern void cygwin_premain1 (int argc, char **argv, struct per_process *);
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extern void cygwin_premain2 (int argc, char **argv, struct per_process *);
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extern void cygwin_premain3 (int argc, char **argv, struct per_process *);
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extern void cygwin_set_impersonation_token (const HANDLE);
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/* included if <windows.h> is included */
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extern int cygwin32_attach_handle_to_fd (char *, int, HANDLE, mode_t, DWORD);
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extern int cygwin_attach_handle_to_fd (char *, int, HANDLE, mode_t, DWORD);
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#ifdef __CYGWIN__
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#include <sys/resource.h>
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#define TTY_CONSOLE 0x40000000
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#define EXTERNAL_PINFO_VERSION_16_BIT 0
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#define EXTERNAL_PINFO_VERSION_32_BIT 1
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#define EXTERNAL_PINFO_VERSION EXTERNAL_PINFO_VERSION_32_BIT
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#ifndef _SYS_TYPES_H
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typedef unsigned short __uid16_t;
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typedef unsigned short __gid16_t;
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typedef unsigned long __uid32_t;
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typedef unsigned long __gid32_t;
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#endif
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struct external_pinfo
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{
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pid_t pid;
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pid_t ppid;
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DWORD exitcode;
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DWORD dwProcessId, dwSpawnedProcessId;
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__uid16_t uid;
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__gid16_t gid;
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pid_t pgid;
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pid_t sid;
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int ctty;
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mode_t umask;
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long start_time;
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struct rusage rusage_self;
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struct rusage rusage_children;
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char progname[MAX_PATH];
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DWORD strace_mask;
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DWORD version;
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DWORD process_state;
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/* Only available if version >= EXTERNAL_PINFO_VERSION_32_BIT */
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__uid32_t uid32;
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__gid32_t gid32;
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};
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#endif /*__CYGWIN__*/
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#endif /*WINVER*/
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#ifdef __cplusplus
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};
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#endif
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#endif /* _SYS_CYGWIN_H */
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