diff options
Diffstat (limited to 'winsup/cygwin/debug.cc')
| -rw-r--r-- | winsup/cygwin/debug.cc | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/winsup/cygwin/debug.cc b/winsup/cygwin/debug.cc deleted file mode 100644 index 418f35510..000000000 --- a/winsup/cygwin/debug.cc +++ /dev/null @@ -1,226 +0,0 @@ -/* debug.cc - - Copyright 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include "sync.h" -#include "sigproc.h" -#include "pinfo.h" -#include "perthread.h" -#include "perprocess.h" -#include "security.h" -#include "cygerrno.h" -#ifdef DEBUGGING -#include <errno.h> -#include "fhandler.h" -#include "path.h" -#include "dtable.h" -#include "cygheap.h" -#endif - -#undef CloseHandle - -#ifdef DEBUGGING -/* Here lies extra debugging routines which help track down internal - Cygwin problems when compiled with -DDEBUGGING . */ -#include <stdlib.h> -#define NFREEH (sizeof (cygheap->debug.freeh) / sizeof (cygheap->debug.freeh[0])) - -class lock_debug -{ - static muto *locker; - bool acquired; - public: - lock_debug () : acquired (0) - { - if (locker) - acquired = !!locker->acquire (INFINITE); - } - void unlock () - { - if (locker && acquired) - { - locker->release (); - acquired = false; - } - } - ~lock_debug () {unlock ();} - friend void debug_init (); -}; - -muto NO_COPY *lock_debug::locker = NULL; - -static bool __stdcall mark_closed (const char *, int, HANDLE, const char *, BOOL); - -void -debug_init () -{ - muto *debug_lock_muto; - lock_debug::locker = new_muto (debug_lock_muto); -} - -/* Find a registered handle in the linked list of handles. */ -static handle_list * __stdcall -find_handle (HANDLE h) -{ - handle_list *hl; - for (hl = &cygheap->debug.starth; hl->next != NULL; hl = hl->next) - if (hl->next->h == h) - goto out; - cygheap->debug.endh = hl; - hl = NULL; - -out: - return hl; -} - -#ifdef DEBUGGING_AND_FDS_PROTECTED -void -setclexec (HANDLE oh, HANDLE nh, bool not_inheriting) -{ - handle_list *hl = find_handle (oh); - if (hl) - { - hl = hl->next; - hl->inherited = !not_inheriting; - hl->h = nh; - } -} -#endif - -/* Create a new handle record */ -static handle_list * __stdcall -newh () -{ - handle_list *hl; - lock_debug here; - - for (hl = cygheap->debug.freeh; hl < cygheap->debug.freeh + NFREEH; hl++) - if (hl->name == NULL) - return hl; - - return NULL; -} - -/* Add a handle to the linked list of known handles. */ -void __stdcall -add_handle (const char *func, int ln, HANDLE h, const char *name, bool inh) -{ - handle_list *hl; - lock_debug here; - - if ((hl = find_handle (h))) - { - hl = hl->next; - if (hl->name == name && hl->func == func && hl->ln == ln) - return; - system_printf ("%s:%d - multiple attempts to add handle %s<%p>", func, - ln, name, h); - system_printf (" previously allocated by %s:%d(%s<%p>) winpid %d", - hl->func, hl->ln, hl->name, hl->h, hl->pid); - return; - } - - if ((hl = newh ()) == NULL) - { - here.unlock (); - debug_printf ("couldn't allocate memory for %s(%d): %s(%p)", - func, ln, name, h); - return; - } - hl->h = h; - hl->name = name; - hl->func = func; - hl->ln = ln; - hl->next = NULL; - hl->inherited = inh; - hl->pid = GetCurrentProcessId (); - cygheap->debug.endh->next = hl; - cygheap->debug.endh = hl; - debug_printf ("protecting handle '%s', inherited flag %d", hl->name, hl->inherited); - - return; -} - -static void __stdcall -delete_handle (handle_list *hl) -{ - handle_list *hnuke = hl->next; - debug_printf ("nuking handle '%s'", hnuke->name); - hl->next = hl->next->next; - memset (hnuke, 0, sizeof (*hnuke)); -} - -void -debug_fixup_after_fork_exec () -{ - /* No lock needed at this point */ - handle_list *hl; - for (hl = &cygheap->debug.starth; hl->next != NULL; /* nothing */) - if (hl->next->inherited) - hl = hl->next; - else - delete_handle (hl); // removes hl->next -} - -static bool __stdcall -mark_closed (const char *func, int ln, HANDLE h, const char *name, BOOL force) -{ - handle_list *hl; - lock_debug here; - - if ((hl = find_handle (h)) && !force) - { - hl = hl->next; - here.unlock (); // race here - system_printf ("attempt to close protected handle %s:%d(%s<%p>) winpid %d", - hl->func, hl->ln, hl->name, hl->h, hl->pid); - system_printf (" by %s:%d(%s<%p>)", func, ln, name, h); - return FALSE; - } - - handle_list *hln; - if (hl && (hln = hl->next) && strcmp (name, hln->name)) - { - system_printf ("closing protected handle %s:%d(%s<%p>)", - hln->func, hln->ln, hln->name, hln->h); - system_printf (" by %s:%d(%s<%p>)", func, ln, name, h); - } - - if (hl) - delete_handle (hl); - - return TRUE; -} - -/* Close a known handle. Complain if !force and closing a known handle or - if the name of the handle being closed does not match the registered name. */ -BOOL __stdcall -close_handle (const char *func, int ln, HANDLE h, const char *name, BOOL force) -{ - BOOL ret; - lock_debug here; - - if (!mark_closed (func, ln, h, name, force)) - return FALSE; - - ret = CloseHandle (h); - -#if 0 /* Uncomment to see CloseHandle failures */ - if (!ret) - small_printf ("CloseHandle(%s) failed %s:%d\n", name, func, ln); -#endif - return ret; -} - -int __stdcall -__set_errno (const char *func, int ln, int val) -{ - debug_printf ("%s:%d val %d", func, ln, val); - return _impure_ptr->_errno = val; -} -#endif /*DEBUGGING*/ |