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path: root/winsup/cygwin/mmap.cc
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* * mmap.cc: Move fh_paging_file from some functions to beCorinna Vinschen2001-04-161-40/+57
| | | | | | | | | | | | | | a global static variable. (class mmap_record): Add `devtype_' member to remember the device type of the file. Add declaration for methods `get_device', `alloc_fh' and `free_fh'. (mmap_record::mmap_record): Initialize `devtype_' correctly. (mmap_record::alloc_fh): New method. (mmap_record::free_fh): Ditto. (munmap): Use new mmap_record::alloc_fh and mmap_record::free_fh methods to create a correct fhandler. (msync): Ditto. (fixup_mmaps_after_fork): Ditto.
* * mmap.cc (mmap): Fix conditional for previous patch.Corinna Vinschen2001-03-271-1/+1
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* * mmap.cc (mmap): Outflank copy-on-write problem on 9x byCorinna Vinschen2001-03-261-1/+4
| | | | setting access mode to FILE_MAP_READ when read access is requested.
* * mmap.cc (map::get_list_by_fd): Avoid calling `get_namehash' whenCorinna Vinschen2001-03-191-1/+1
| | | | file descriptor is -1.
* * mmap.cc (fhandler_disk_file::mmap): Use `addr' correctly.Corinna Vinschen2001-02-231-2/+2
| | | | * fhandler_mem.cc (fhandler_dev_mem::mmap): Ditto.
* * mmap.cc (mmap): Check for reusing a mapping only on MAP_SHAREDCorinna Vinschen2001-02-081-2/+3
| | | | and on MAP_PRIVATE|MAP_ANON in the special case of offset 0.
* * mmap.cc (class list): Add member `hash'.Corinna Vinschen2001-02-081-8/+16
| | | | | | | | (list::list): Initialize `hash'. (list::get_list_by_fd): Use filepath hash value to get the correct mapping list if it's not an anonymous mapping. (map::add_list): Initialize `hash' with filepath hash value. (mmap): Check for reusing a mapping only on MAP_SHARED.
* * mmap.cc (mmap_record::fixup_map): New method to duplicateCorinna Vinschen2001-02-051-45/+73
| | | | | | | | | the memory protection in a just forked child. (mmap): Realign gran_len to page boundary only on anonymous mapping before saving in the mmap_record. (munmap): Cleanup code. (msync): Ditto. (fixup_mmaps_after_fork): Ditto. Call mmap_record::fixup_map now.
* * mmap.cc (mmap): Remove obsolete check for MAP_SHARED|MAP_ANON asCorinna Vinschen2001-01-291-12/+2
| | | | being invalid.
* * mmap.cc (mmap_record::find_empty): Fix loop condition.Corinna Vinschen2001-01-291-1/+1
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* * mmap.cc (fhandler_disk_file::mmap): Call CreateFileMapping withCorinna Vinschen2001-01-241-2/+7
| | | | len != 0 only when performing an anonymous mapping.
* * mmap.cc (mmap): Initialize fh to avoid compiler warnings.Corinna Vinschen2001-01-161-1/+1
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* * mmap.cc (mmap): Add more parameter checking. Change error outputCorinna Vinschen2001-01-151-27/+42
| | | | in case of EINVAL. Treat mmapping /dev/zero like MAP_ANONYMOUS.
* * mmap.cc: include <unistd.h>. Define some bit operations forCorinna Vinschen2001-01-151-33/+247
| | | | | | | | | | | | | | | | | the new page map. (mmap_record): Change type of base_address_ to caddr_t. Add map_map_ member. Add several methods to manipulate map_map_. (mmap_record::alloc_map): New method. (mmap_record::free_map): Ditto. (mmap_record::find_empty): Ditto. (mmap_record::map_map): Ditto. (mmap_record::unmap_map): Ditto. (list::add_record): Change return type to `mmap_record *'. Allocate page map. (list::match): New method. (mmap): Partly rewritten to take care for the new page map. Add some parameter checking. (munmap): Ditto.
* * fhandler.h (fhandler_base): New method `fixup_mmap_after_fork'.Corinna Vinschen2001-01-111-15/+42
| | | | | | | | | | | | | | | | | (fhandler_disk_file: Ditto. (fhandler_dev_mem): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Set OBJ_INHERIT attribute for device\physicalmemory handle. (fhandler_dev_mem::mmap): Ditto. * fhandler_mem.cc (fhandler_dev_mem::fixup_mmap_after_fork): New method. * mmap.cc (mmap_record): Add private `fdesc_' member. Change constructor accordingly. (get_fd): New method. (mmap): Use new mmap_record constructor. (fhandler_base::fixup_mmap_after_fork): New method. (fhandler_disk_file::fixup_mmap_after_fork): Ditto. (fixup_mmaps_after_fork): Call `fixup_mmap_after_fork' of appropriate fhandler class.
* * mmap.cc (munmap): Check that mmap and munmap length match.Christopher Faylor2000-11-281-3/+2
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* Throughout use myself->ppid_handle rather than parent_alive.Christopher Faylor2000-11-151-39/+21
| | | | | | | | | | | | | | | | * child_info.h (child_info): Eliminate parent_alive. * dcrt0.cc (dll_crt0_1): Call fork_init for debugging pid creation. * fork.cc (fork_child): Reflect change to fixup_mmaps_after_fork arguments. (slow_pid_reuse): New function to grab last 'n' pids to prevent pid reuse. (fork_parent): Move last_fork_proc into slow_pid_reuse. Handle fork_pids debugging. Eliminate unnecessary call to set_child_mmap_ptr. (fork_init): New debugging function. * mmap.cc (fixup_mmaps_after_fork): Renamed from recreate_mmaps_after_fork. Rely on copied data after a fork. (set_child_mmap_ptr): Eliminate. * pinfo.h (_pinfo): Eliminate parent_alive, mmap_ptr and reflect above changes. * spawn.cc (spawn_guts): Eliminate vestiges of "old way" of sending new hProc to parent process.
* * Makefile.in: Remove some obsolete stuff.Christopher Faylor2000-10-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate. Set myself->uid from parent version. Just use ThreadItem Init method. Close or store hexec_proc as appropriate. (_dll_crt0): Store user_data->forkee here so that proper tests can be made subsequently. (do_exit): Remove hExeced stuff. * environ.cc (environ_init): Accept environ count as well as environ pointer. * environ.h: Reflect above change. * pinfo.cc (pinfo_init): Ditto. Accept environ count. (fixup_in_spawned_child): Remove. * spawn.cc (spawn_guts): Move signal code to dll_crt0_1. Don't suspend execing process since it is no longer necessary. Store envc. * exceptions.cc (signal_fixup_after_exec): New function. (call_handler): Remove hExeced test. * child_info.h (cygheap_exec_info): Store envc as well as envp. (child_info_spawn): Store hexec_proc so that it can be closed in child. * path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf. (normalize_win32_path): Ditto. (cwdstuff::get_initial): Always set lock. * sigproc.h: Remove hExeced. * strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced. * thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method. (MTinterface::Init1): Eliminate. (MTinterface::ClearReent): Eliminate. * thread.h: Reflect above changes. * include/sys/strace.h (strace): Make microseconds() public. Make various functions 'regparm', throughout. * pinfo.h (_pinfo): Inline simple signal manipulation functions. Requires inclusion of thread.h which was removed from .cc files, where appropriate. throughout. * pinfo.cc: Eliminate signal manipulation functions. (_pinfo::exit): Calculate total rusage for exiting process here. * cygheap.cc (size2bucket): Eliminate. (init_buckets): Ditto. (_cmalloc): Calculate size and bits in a loop rather than going through a function call. (_crealloc): Use stored array index to calculate allocated size. * spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
* * fhandler.h (fhandler_dev_mem): Add methods mmap, munmap and msync.Corinna Vinschen2000-10-071-3/+11
| | | | | | | | | | | | | | | Add `unit' member. * fhandler_mem.cc (fhandler_dev_mem): Initialize `unit' as well. (init): Care for differences between /dev/mem, /dev/kmem (not implemented yet) and /dev/port. (open): Change debug message to reflect the device. (mmap): New function. (munmap): Ditto. (msync): Ditto. (fstat): Use unit when setting st_dev in stat structure. * mmap.cc (mmap): Handle MAP_ANONYMOUS flag. Change error handling slightly. * path.cc (get_device_number): Handle /dev/port.
* =====================================Corinna Vinschen2000-10-051-64/+195
| | | | | | | | | | | | | | | | | These changes require rebuilding all. ===================================== * fhandler.h: Add mmap(), munmap() and msync() to fhandler_base and fhandler_disk_file. * mmem.cc (mmap): Eliminated device dependent implementation details. These are moved to the appropriate fhandler class. (munmap): Ditto. (msync): Ditto. (fhandler_base::mmap): New method. (fhandler_base::munmap): Ditto. (fhandler_base::msync): Ditto. (fhandler_disk_file::mmap): Ditto. (fhandler_disk_file::munmap): Ditto. (fhandler_disk_file::msync): Ditto.
* Break out more header info into separate files. Use appropriate header filesChristopher Faylor2000-09-081-0/+1
| | | | | | | | | | | | throughout. * shared.h: Remove. * cygwin_version.h: New file. * delqueue.h: New file. * environ.h: New file. * host_dependent.h: New file. * perprocess.h: New file. * registry.h: New file. * security.h: New file.
* * Makefile.in: Add cygheap.o.Christopher Faylor2000-09-031-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * child_info.h: Add specific exec class. * cygheap.h: New file. Contains declarations for cygwin heap. * cygheap.cc: New file. Implements cygwin heap functions. * dcrt0.cc (quoted): Simplify due to new method for passing arguments between cygwin programs. (alloc_stack_hard_way): Attempt to handle overlapped stack. (dll_crt0_1): Move child_info processing here. Accomodate new method for passing arguments between cygwin programs. Initialize cygwin heap. Establish __argc and __argv variables. (_dll_crt0): Move most of child_info processing to dll_crt0_1. (cygwin_dll_init): Remove duplication. * dtable.cc (dtable::extend): Allocate dtable using cygwin heap. (dtable::build_fhandler): Ditto for fhandler type being constructed. (dtable::dup_worker): Free new fhandler from cygwin heap on error. (dtable::select_*): Don't assume that this == fdtab. (dtable::linearize_fd_array): Delete. (dtable::delinearize_fd_array): Delete. (dtable::fixup_after_exec): New file. (dtable::vfork_child_dup): Use cygwin heap. (dtable::vfork_parent_restore): Ditto. * dtable.h: Remove obsolete methods. Add new method. * environ.cc (posify): Eliminate already_posix parameter and logic. (envsize): New function. (_addenv): Use envsize. (environ_init): Accept an argument pointing to an existing environment list. If supplied, allocate space for this in the the program's heap. * fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use cygwin heap to allocate filenames. (fhandler_base::set_name): Allocate/free names from cygwin heap. (fhandler_base::linearize): Delete. (fhandler_base::de_linearize): Delete. (fhandler_base::operator delete): Free from cygwin heap. (fhandler_base::~fhandler_base): Ditto. * fhandler.h: Accomodate elimination of *linearize and other changes above. * fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from de_linearize. * heap.h: New file. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for name. fhandler_tty::fixup_after_exec): Rename from de_linearize. * fork.cc (fork): Call cygheap_fixup_in_child. * heap.cc: Use declarations in heap.h. * malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc something from the cygwin heap. * path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_* functions rather than cwd_* variables to access cwd_win32 and cwd_posix. (cwd_win32): New function. (cwd_posix): New function. (cwd_hash): New function. (cwd_fixup_after_exec): New function. * path.h: Accomodate path.cc changes. * pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this to environ_init. Eliminate old 'title' tests. * pinfo.h: Accomodate above change in argument. * spawn.cc (struct av): New method for building argv list. (av::unshift): New method. (spawn_guts): Allocate everything that the child process needs in the cygwin heap and pass a pointer to this to the child. Build argv list using new method. Eliminate delinearize stuff. * thread.h: Eliminate _cwd_win32 and _cwd_posix buffers. * winsup.h: Eliminate obsolete functions. Add envsize() declaration.
* * winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h filesChristopher Faylor2000-08-221-1/+5
| | | | | only in sources which require them. * Makefile.in: Generate dependencies with -MD option.
* * cygerrno.h: New file. Use this throughout whenever errno manipulation isChristopher Faylor2000-08-221-0/+1
| | | | | | | | | | | | | | | required. * errno.cc: Use DWORD to hold Windows errors. (geterrno_from_win_error): New function. (seterrno_from_win_error): Use geterrno_from_win_error to convert supplied windows error (suggested by Corinna Vinschen). * path.cc (symlink_info): Add error element. * path.cc (path_conv::check): Remove errno setting. Use new symlink_info errno element to set path_conv error, where appropriate. (symlink_info::check): Set error element rather than attempting to manipulate errno. Add more checks for trailing / and /.. even though they are currently useless. Avoid setting EINVAL. * path.cc (normalize_posix_path): Correct check for trailing /.
* * winsup.h: Split out dtable definitions into separate header file.Christopher Faylor2000-08-121-1/+2
| | | | | | * dtable.h: New file. * sigproc.h: Eliminate pinfo.h usage here. Use it in source files that need it.
* Rename hinfo -> dtable. Name the former dtable array 'fdtab'.Christopher Faylor2000-08-121-2/+2
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* * winsup.h: take out protections of environ, errno, allow C useDJ Delorie2000-08-021-1/+1
| | | | | | | | | | * *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__); use cur_environ() instead of just environ * times.cc: remove import protections * glob.c: add winsup.h * localtime.c: ditto * smallprint.c: ditto * Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
* * include/cygwin/version.h: Bump DLL minor version number to 5 due to all ofChristopher Faylor2000-07-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the changes below. Redefine process structure to avoid a fixed size table. Redefine pinfo/_pinfo classes. Use these throughout. * dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change. (__api_fatal): Accomodate _pinfo::record_death argument change. * exceptions.cc (really_exit): Ditto. (sig_handle_tty_stop): Use pinfo constructor to access process info. (events_init): Don't create pinfo_mutex since it is no longer required. * external.cc (fillout_pinfo): Use winpids class to iterate over all system pids. (cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops. * fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to access process info. * fork.cc (fork): Reorganize to initialize child info after the child has started since that is when we know the child's winpid, which is necessary to allocate the pinfo shared memory. * mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo. * pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list stuff. (set_myself): Accept a pid argument now. Call pinfo initializer to initialize myself. Detect when this is an "execed" process and create an "indirect" pid block. (pinfo_init): Accomodate set_myself arg change. (procinfo): Remove. (pinfo::lock_pinfo): Remove. (pinfo::unlock_pinfo): Remove. (pinfo::init): New method. Allocates shared memory space for process pinfo structure. (pinfo::record_death): Don't call locking functions. (cygwin_winpid_to_pid): Simplify by using new pinfo constructor. (EnumProcessesW95): New function for iterating over processes on Windows 95. (winpids::winpids): New constructor for winpids class. Sets up a list of process ids. (enum_init): Initialize w95/wnt pid enumerators. * shared.cc (shared-info::initialize): Remove pid initialization. * shared.h: Move pinfo stuff into pinfo.h. (class shared_info): Remove pinfo_list element. * signal.cc (kill_worker): Use pinfo constructor to access process info. (kill_pgrp): Ditto. Use winpids methods to access list of processes. * sigproc.cc: Throughout, modify to use _pinfo where appropriate. (proc_exists (pid_t)): New function. Determines if a process exists based on the pid. (proc_exists (_pinfo *p): Use new proc_exists function above. (proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be careful about releasing shared memory when we don't need it anymore. Remove pinfo locks. (remove_zombies): Remove pinfo memory when zombie is going away. * sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc. * spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only initialize child pinfo after process has been started and we know the windows pid. (_spawnve): Reflect spawn_guts changes. * syscalls.cc (setpgid): Use pinfo constructor to access process info. (getpgid): Ditto. (internal_getlogin): Use _pinfo. * winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it is static now. Reflect set_myself argument change. * include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff. * include/cygwin/version.h: Update minor version for cygdrive changes below.
* * mmap.cc (list::erase): Increment loop counter.DJ Delorie2000-05-111-2/+2
| | | | (map::erase): Likewise.
* import winsup-2000-02-17 snapshotChristopher Faylor2000-02-171-0/+474