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*** empty log message ***
Thu Jun 6 07:32:14 1996 Miles Bader <miles@gnu.ai.mit.edu> * resolv/gethnamaddr.c (struct hstorage): Make NAME field a pointer. (_gethtbyname2): Remove ALIAS variable. Initialize NAME field of SELF and TARGET to 0. Add SELF_NAME_SIZE static variable. Add loop to call gethostname until the space we allocated is enough. Use malloced strings instead of fixed size buffers. <stdlib.h>, <unistd.h>: New includes. * sysdeps/generic/sys/socket.h (PF_INET6, AF_INET6): New macros. * sysdeps/mach/hurd/errlist.c (_sys_errlist): Add EILSEQ. (_sys_nerr): Initialize to 107. Update _HURD_ERRNOS consistency check. * stdlib/canonicalize.c (canonicalize): Use pathconf for PATH_MAX, not sysconf. * login/login.c [!PATH_MAX] (PATH_MAX): Define to be 1024 if not already defined. * sysdeps/mach/hurd/setitimer.c (timer_thread): Supply SIGCODE argument to __msg_sig_post_request. * hurd/hurdmalloc.c: Changes to bring in line with the hurd libthreads/malloc.c: (more_memory): Use assert_perror instead of MACH_CALL. "cthread_internals.h": Include removed. (realloc): Use LOG2_MIN_SIZE. (LOG2_MIN_SIZE): New macro. (realloc): Don't bother allocating a new block if the new size request fits in the old one and doesn't waste any space. Only free the old block if we successfully got a new one. [MCHECK] (struct header): New type. (union header): Only define if !MCHECK. (HEADER_SIZE, HEADER_NEXT, HEADER_FREE, HEADER_CHECK): New macros. [MCHECK] (MIN_SIZE): Add correct definition for this case. (more_memory, malloc, free, realloc): Use above macros, and add appropiate checks & frobs in MCHECK case.
This commit is contained in:
Miles Bader
parent
e550852065
commit
02eec64431
40
ChangeLog
40
ChangeLog
@ -1,3 +1,43 @@
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Thu Jun 6 07:32:14 1996 Miles Bader <miles@gnu.ai.mit.edu>
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* resolv/gethnamaddr.c (struct hstorage): Make NAME field a pointer.
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(_gethtbyname2): Remove ALIAS variable.
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Initialize NAME field of SELF and TARGET to 0.
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Add SELF_NAME_SIZE static variable.
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Add loop to call gethostname until the space we allocated is enough.
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Use malloced strings instead of fixed size buffers.
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<stdlib.h>, <unistd.h>: New includes.
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* sysdeps/generic/sys/socket.h (PF_INET6, AF_INET6): New macros.
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* sysdeps/mach/hurd/errlist.c (_sys_errlist): Add EILSEQ.
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(_sys_nerr): Initialize to 107.
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Update _HURD_ERRNOS consistency check.
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* stdlib/canonicalize.c (canonicalize): Use pathconf for PATH_MAX,
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not sysconf.
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* login/login.c [!PATH_MAX] (PATH_MAX): Define to be 1024 if not
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already defined.
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* sysdeps/mach/hurd/setitimer.c (timer_thread): Supply SIGCODE
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argument to __msg_sig_post_request.
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* hurd/hurdmalloc.c: Changes to bring in line with the hurd
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libthreads/malloc.c:
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(more_memory): Use assert_perror instead of MACH_CALL.
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"cthread_internals.h": Include removed.
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(realloc): Use LOG2_MIN_SIZE.
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(LOG2_MIN_SIZE): New macro.
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(realloc): Don't bother allocating a new block if the
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new size request fits in the old one and doesn't waste any space.
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Only free the old block if we successfully got a new one.
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[MCHECK] (struct header): New type.
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(union header): Only define if !MCHECK.
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(HEADER_SIZE, HEADER_NEXT, HEADER_FREE, HEADER_CHECK): New macros.
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[MCHECK] (MIN_SIZE): Add correct definition for this case.
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(more_memory, malloc, free, realloc): Use above macros, and add
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appropiate checks & frobs in MCHECK case.
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Thu Jun 6 02:00:42 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
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* Makerules (distinfo-vars): Don't write constant line to frob sources.
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@ -37,24 +37,39 @@
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/*
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* HISTORY
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* $Log$
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* Revision 1.10 1995/02/13 22:04:34 roland
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* (malloc_init): Add self reference to avoid not only the `defined but not
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* used' warning, but also to avoid GCC optimizing out the entire function
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* (!).
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* Revision 1.11 1996/06/06 15:13:47 miles
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* Changes to bring in line with the hurd libthreads/malloc.c:
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* (more_memory): Use assert_perror instead of MACH_CALL.
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* "cthread_internals.h": Include removed.
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* (realloc): Use LOG2_MIN_SIZE.
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* (LOG2_MIN_SIZE): New macro.
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* (realloc): Don't bother allocating a new block if the
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* new size request fits in the old one and doesn't waste any space.
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* Only free the old block if we successfully got a new one.
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* [MCHECK] (struct header): New type.
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* (union header): Only define if !MCHECK.
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* (HEADER_SIZE, HEADER_NEXT, HEADER_FREE, HEADER_CHECK): New macros.
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* [MCHECK] (MIN_SIZE): Add correct definition for this case.
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* (more_memory, malloc, free, realloc): Use above macros, and add appropiate
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* checks & frobs in MCHECK case.
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*
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* Revision 1.9 1995/02/13 16:36:08 roland
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* Include string.h; #define bcopy using memcpy.
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* Revision 1.6 1996/03/07 21:13:08 miles
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* (realloc):
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* Use LOG2_MIN_SIZE.
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* Don't bother allocating a new block if the new size request fits in the old
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* one and doesn't waste any space.
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* Only free the old block if we successfully got a new one.
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* (LOG2_MIN_SIZE): New macro.
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*
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* Revision 1.8 1995/02/03 01:54:21 roland
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* Remove bogus bcopy decl.
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* Revision 1.5 1996/03/06 23:51:04 miles
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* [MCHECK] (struct header): New type.
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* (union header): Only define if !MCHECK.
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* (HEADER_SIZE, HEADER_NEXT, HEADER_FREE, HEADER_CHECK): New macros.
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* [MCHECK] (MIN_SIZE): Add correct definition for this case.
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* (more_memory, malloc, free, realloc):
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* Use above macros, and add appropiate checks & frobs in MCHECK case.
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*
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* Revision 1.7 1995/01/26 04:22:02 roland
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* Don't include gnu-stabs.h.
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*
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* Revision 1.6 1994/12/07 19:41:26 roland
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* (vm_allocate, vm_page_size): #define these to __ names at top.
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*
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* Revision 1.5 1994/06/04 01:48:44 roland
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* Revision 1.4 1994/05/05 11:21:42 roland
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* entered into RCS
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*
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* Revision 2.7 91/05/14 17:57:34 mrt
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@ -99,9 +114,11 @@
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*/
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#include <cthreads.h>
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#include "cthread_internals.h"
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#include <assert.h>
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#include <cthreads.h>
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#define MCHECK
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/*
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* Structure of memory block header.
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@ -109,12 +126,41 @@
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* When allocated, fl points to free list.
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* Size of header is 4 bytes, so minimum usable block size is 8 bytes.
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*/
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#define CHECK_BUSY 0x8a3c743e
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#define CHECK_FREE 0x66688b92
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#ifdef MCHECK
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typedef struct header {
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long check;
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union {
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struct header *next;
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struct free_list *fl;
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} u;
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} *header_t;
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#define HEADER_SIZE sizeof (struct header)
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#define HEADER_NEXT(h) ((h)->u.next)
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#define HEADER_FREE(h) ((h)->u.fl)
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#define HEADER_CHECK(h) ((h)->check)
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#define MIN_SIZE 16
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#define LOG2_MIN_SIZE 4
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#else /* ! MCHECK */
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typedef union header {
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union header *next;
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struct free_list *fl;
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} *header_t;
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#define HEADER_SIZE sizeof (union header)
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#define HEADER_NEXT(h) ((h)->next)
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#define HEADER_FREE(h) ((h)->fl)
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#define MIN_SIZE 8 /* minimum block size */
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#define LOG2_MIN_SIZE 3
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#endif /* MCHECK */
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typedef struct free_list {
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spin_lock_t lock; /* spin lock for mutual exclusion */
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@ -125,10 +171,10 @@ typedef struct free_list {
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} *free_list_t;
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/*
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* Free list with index i contains blocks of size 2^(i+3) including header.
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* Smallest block size is 8, with 4 bytes available to user.
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* Size argument to malloc is a signed integer for sanity checking,
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* so largest block size is 2^31.
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* Free list with index i contains blocks of size 2 ^ (i + LOG2_MIN_SIZE)
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* including header. Smallest block size is MIN_SIZE, with MIN_SIZE -
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* HEADER_SIZE bytes available to user. Size argument to malloc is a signed
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* integer for sanity checking, so largest block size is 2^31.
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*/
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#define NBUCKETS 29
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@ -173,16 +219,21 @@ more_memory(size, fl)
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if (size <= vm_page_size) {
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amount = vm_page_size;
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n = vm_page_size / size;
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/*
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* We lose vm_page_size - n*size bytes here. */
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/* We lose vm_page_size - n*size bytes here. */
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} else {
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amount = size;
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n = 1;
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}
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MACH_CALL(vm_allocate(mach_task_self(), &where, (vm_size_t) amount, TRUE), r);
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r = vm_allocate(mach_task_self(), &where, (vm_size_t) amount, TRUE);
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assert_perror (r);
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h = (header_t) where;
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do {
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h->next = fl->head;
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HEADER_NEXT (h) = fl->head;
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#ifdef MCHECK
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HEADER_CHECK (h) = CHECK_FREE;
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#endif
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fl->head = h;
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h = (header_t) ((char *) h + size);
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} while (--n != 0);
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@ -199,7 +250,7 @@ malloc(size)
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if ((int) size < 0) /* sanity check */
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return 0;
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size += sizeof(union header);
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size += HEADER_SIZE;
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/*
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* Find smallest power-of-two block size
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* big enough to hold requested size plus header.
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@ -232,7 +283,13 @@ malloc(size)
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/*
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* Pop block from free list.
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*/
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fl->head = h->next;
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fl->head = HEADER_NEXT (h);
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#ifdef MCHECK
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assert (HEADER_CHECK (h) == CHECK_FREE);
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HEADER_CHECK (h) = CHECK_BUSY;
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#endif
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#ifdef DEBUG
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fl->in_use += 1;
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#endif DEBUG
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@ -242,11 +299,11 @@ malloc(size)
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* so we can figure out where it goes
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* at free() time.
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*/
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h->fl = fl;
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HEADER_FREE (h) = fl;
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/*
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* Return pointer past the block header.
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*/
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return ((char *) h) + sizeof(union header);
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return ((char *) h) + HEADER_SIZE;
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}
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/* Declaration changed to standard one for GNU. */
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@ -263,8 +320,13 @@ free(base)
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/*
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* Find free list for block.
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*/
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h = (header_t) (base - sizeof(union header));
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fl = h->fl;
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h = (header_t) (base - HEADER_SIZE);
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#ifdef MCHECK
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assert (HEADER_CHECK (h) == CHECK_BUSY);
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#endif
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fl = HEADER_FREE (h);
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i = fl - malloc_free_list;
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/*
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* Sanity checks.
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@ -281,7 +343,10 @@ free(base)
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* Push block on free list.
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*/
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spin_lock(&fl->lock);
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h->next = fl->head;
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HEADER_NEXT (h) = fl->head;
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#ifdef MCHECK
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HEADER_CHECK (h) = CHECK_FREE;
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#endif
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fl->head = h;
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#ifdef DEBUG
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fl->in_use -= 1;
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@ -308,8 +373,11 @@ realloc(old_base, new_size)
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/*
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* Find size of old block.
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*/
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h = (header_t) (old_base - sizeof(union header));
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fl = h->fl;
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h = (header_t) (old_base - HEADER_SIZE);
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#ifdef MCHECK
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assert (HEADER_CHECK (h) == CHECK_BUSY);
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#endif
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fl = HEADER_FREE (h);
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i = fl - malloc_free_list;
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/*
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* Sanity checks.
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@ -323,16 +391,29 @@ realloc(old_base, new_size)
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return 0;
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}
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/*
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* Free list with index i contains blocks of size 2^(i+3) including header.
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* Free list with index i contains blocks of size
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* 2 ^ (i + * LOG2_MIN_SIZE) including header.
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*/
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old_size = (1 << (i+3)) - sizeof(union header);
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old_size = (1 << (i + LOG2_MIN_SIZE)) - HEADER_SIZE;
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if (new_size <= old_size
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&& new_size > (((old_size + HEADER_SIZE) >> 1) - HEADER_SIZE))
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/* The new size still fits in the same block, and wouldn't fit in
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the next smaller block! */
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return old_base;
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/*
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* Allocate new block, copy old bytes, and free old block.
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*/
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new_base = malloc(new_size);
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if (new_base != 0)
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bcopy(old_base, new_base, (int) (old_size < new_size ? old_size : new_size));
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free(old_base);
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if (new_base)
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bcopy(old_base, new_base,
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(int) (old_size < new_size ? old_size : new_size));
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if (new_base || new_size == 0)
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/* Free OLD_BASE, but only if the malloc didn't fail. */
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free (old_base);
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return new_base;
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}
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@ -354,7 +435,7 @@ print_malloc_free_list()
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spin_lock(&fl->lock);
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if (fl->in_use != 0 || fl->head != 0) {
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total_used += fl->in_use * size;
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for (n = 0, h = fl->head; h != 0; h = h->next, n += 1)
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for (n = 0, h = fl->head; h != 0; h = HEADER_NEXT (h), n += 1)
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;
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total_free += n * size;
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fprintf(stderr, "%10d %10d %10d %10d\n",
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@ -23,6 +23,10 @@ Boston, MA 02111-1307, USA. */
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#include <unistd.h>
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#include <utmp.h>
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/* XXX used for tty name array in login. */
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#ifndef PATH_MAX
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#define PATH_MAX 1024
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#endif
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void
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login (const struct utmp *ut)
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@ -65,6 +65,8 @@ static char rcsid[] = "$Id$";
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#include <arpa/nameser.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <resolv.h>
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#include <ctype.h>
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@ -823,7 +825,7 @@ _gethtent()
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}
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struct hstorage {
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char name[MAXHOSTNAMELEN + 1]; /* canonical name */
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char *name; /* canonical name */
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char ** alp; /* address list pointer */
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char * abp; /* address buffer pointer */
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char * addr_list[MAXADDRS + 1]; /* address list storage */
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@ -891,20 +893,53 @@ _gethtbyname2(name, af)
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* interface changes to make these functions
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* reentrant.
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*/
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static char * aliases[2];
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static char alias[MAXHOSTNAMELEN + 1];
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static struct hstorage self, target;
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static char *aliases[2] = {0};
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static struct hstorage self = {0}, target = {0};
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static size_t self_name_size = 0; /* Allocated in self.name. */
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static struct hostent ht;
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int found;
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if (aliases[0])
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free (aliases[0]); /* Malloced in a prev call. */
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aliases[0] = aliases[1] = 0;
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gethostname(self.name, sizeof(self.name));
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/* Get current host name in a large enough buffer. */
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do {
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errno = 0;
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|
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if (self.name)
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{
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self_name_size += self_name_size;
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self.name =
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realloc (self.name, self_name_size);
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} else {
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self_name_size = 128; /* Initial guess */
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self.name = malloc (self_name_size);
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}
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if (! self.name)
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{
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errno = ENOMEM;
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return 0;
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}
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} while ((gethostname(self.name, self_name_size) == 0
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&& !memchr (self.name, '\0', self_name_size))
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|| errno == ENAMETOOLONG);
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|
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if (errno)
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/* gethostname failed, abort. */
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{
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free (self.name);
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self.name = 0;
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}
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self.alp = self.addr_list;
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self.abp = self.addr_buf;
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strncpy(target.name, name, MAXHOSTNAMELEN);
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target.name[MAXHOSTNAMELEN] = '\0';
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if (target.name)
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free (target.name);
|
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target.name = strdup (name);
|
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|
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target.alp = target.addr_list;
|
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target.abp = target.addr_buf;
|
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@ -920,13 +955,10 @@ _gethtbyname2(name, af)
|
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if (strcasecmp(*cp, name) == 0) {
|
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found = 1;
|
||||
if (!aliases[0]) {
|
||||
strcpy(target.name,
|
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p->h_name);
|
||||
strncpy(alias, name,
|
||||
MAXHOSTNAMELEN);
|
||||
alias[MAXHOSTNAMELEN]
|
||||
= '\0';
|
||||
aliases[0] = alias;
|
||||
aliases[0] =
|
||||
target.name;
|
||||
target.name =
|
||||
strdup (p->h_name);
|
||||
}
|
||||
break;
|
||||
}
|
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|
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@ -47,7 +47,7 @@ canonicalize (const char *name, char *resolved)
|
||||
#ifdef PATH_MAX
|
||||
path_max = PATH_MAX;
|
||||
#else
|
||||
path_max = sysconf (_SC_PATH_MAX);
|
||||
path_max = pathconf (name, _PC_PATH_MAX);
|
||||
if (path_max <= 0)
|
||||
path_max = 1024;
|
||||
#endif
|
||||
|
||||
@ -113,12 +113,13 @@ const char *_sys_errlist[] =
|
||||
"You really blew it this time", /* 103 = EGREGIOUS */
|
||||
"Computer bought the farm", /* 104 = EIEIO */
|
||||
"Gratuitous error", /* 105 = EGRATUITOUS */
|
||||
"Invalid or incomplete multibyte or wide character", /* 106 = EILSEQ */
|
||||
};
|
||||
|
||||
#include <errno.h>
|
||||
#if _HURD_ERRNOS != 106
|
||||
#if _HURD_ERRNOS != 107
|
||||
#error errlist/errnos generation bug
|
||||
#endif
|
||||
const int _sys_nerr = 106;
|
||||
const int _sys_nerr = 107;
|
||||
weak_alias (_sys_errlist, sys_errlist)
|
||||
weak_alias (_sys_nerr, sys_nerr)
|
||||
|
||||
@ -88,7 +88,7 @@ timer_thread (void)
|
||||
__msg_sig_post_request (_hurd_msgport,
|
||||
_hurd_itimer_port,
|
||||
MACH_MSG_TYPE_MAKE_SEND_ONCE,
|
||||
SIGALRM, __mach_task_self ());
|
||||
SIGALRM, 0, __mach_task_self ());
|
||||
break;
|
||||
|
||||
case MACH_RCV_INTERRUPTED:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user