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Wed Aug 30 16:44:55 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

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* sysdeps/mach/hurd/select.c: Deal with out of order replies
	during io_select request loop.
	Handle MACH_RCV_TIMED_OUT error from requests.
	* hurd/intr-msg.c: If the user passed the MACH_RCV_TIMEOUT option,
	distinguish MACH_RCV_TIMED_OUT from EINTR.

	* posix/glob.c (glob): Use realloc to extend strings for GLOB_MARK
	slash.
	(glob_in_dir): Don't allocate extra byte here.

	* sysdeps/i386/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
	Decrement the DT_RELSZ value for the skipped reloc.
This commit is contained in:
Roland McGrath 1995-08-31 00:02:32 +00:00
parent 18926cf415
commit a993273c0d
5 changed files with 73 additions and 13 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
Wed Aug 30 16:44:55 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/select.c: Deal with out of order replies
during io_select request loop.
Handle MACH_RCV_TIMED_OUT error from requests.
* hurd/intr-msg.c: If the user passed the MACH_RCV_TIMEOUT option,
distinguish MACH_RCV_TIMED_OUT from EINTR.
* posix/glob.c (glob): Use realloc to extend strings for GLOB_MARK
slash.
(glob_in_dir): Don't allocate extra byte here.
* sysdeps/i386/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Decrement the DT_RELSZ value for the skipped reloc.
Tue Aug 29 12:35:56 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* time/australasia: Updated data from ADO.

21
hurd/intr-msg.c
View File

@ -35,6 +35,9 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
{
struct hurd_sigstate *ss = _hurd_self_sigstate ();
error_t err;
/* Notice now if the user requested a timeout. OPTION may have the bit
added by interruption semantics, and we must distinguish. */
int user_timeout = option & MACH_RCV_TIMEOUT;
/* Tell the signal thread that we are doing an interruptible RPC on
this port. If we get a signal and should return EINTR, the signal
@ -64,6 +67,15 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
switch (err)
{
case MACH_RCV_TIMED_OUT:
if (user_timeout)
/* The real user RPC timed out. */
break;
else
/* The operation was supposedly interrupted, but still has
not returned. Declare it interrupted. */
goto interrupted;
case MACH_SEND_INTERRUPTED: /* RPC didn't get out. */
if (ss->intr_port != MACH_PORT_NULL)
/* If this signal was for us and it should interrupt calls, the
@ -78,10 +90,7 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
so the signal thread destroyed the reply port. */
/* FALLTHROUGH */
case MACH_RCV_TIMED_OUT:
/* The operation was supposedly interrupted, but still has
not returned. Declare it interrupted. */
interrupted:
err = EINTR;
/* The EINTR return indicates cancellation, so clear the flag. */
@ -95,7 +104,9 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
/* This signal or cancellation was for us. We need to wait for
the reply, but not hang forever. */
option |= MACH_RCV_TIMEOUT;
timeout = _hurd_interrupted_rpc_timeout;
/* Never decrease the user's timeout. */
if (!user_timeout || timeout > _hurd_interrupted_rpc_timeout)
timeout = _hurd_interrupted_rpc_timeout;
}
goto message; /* Retry the receive. */

16
posix/glob.c
View File

@ -417,7 +417,17 @@ glob (pattern, flags, errfunc, pglob)
for (i = oldcount; i < pglob->gl_pathc; ++i)
if (__lstat (pglob->gl_pathv[i], &st) == 0 &&
S_ISDIR (st.st_mode))
strcat (pglob->gl_pathv[i], "/");
{
size_t len = strlen (pglob->gl_pathv[i]) + 2;
char *new = realloc (pglob->gl_pathv[i], len);
if (new == NULL)
{
globfree (pglob);
return GLOB_NOSPACE;
}
strcpy (&new[len - 2], "/");
pglob->gl_pathv[i] = new;
}
}
if (!(flags & GLOB_NOSORT))
@ -617,7 +627,7 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
if (len == 0)
len = strlen (name);
new->name
= (char *) malloc (len + ((flags & GLOB_MARK) ? 1 : 0) + 1);
= (char *) malloc (len + 1);
if (new->name == NULL)
goto memory_error;
memcpy ((__ptr_t) new->name, name, len);
@ -635,7 +645,7 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
nfound = 1;
names = (struct globlink *) __alloca (sizeof (struct globlink));
names->next = NULL;
names->name = (char *) malloc (len + ((flags & GLOB_MARK) ? 1 : 0) + 1);
names->name = (char *) malloc (len + 1);
if (names->name == NULL)
goto memory_error;
memcpy (names->name, pattern, len);

1
sysdeps/i386/dl-machine.h
View File

@ -66,6 +66,7 @@ elf_machine_load_address (void)
we skip it to avoid trying to modify read-only text in this early stage. */
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
++(const Elf32_Rel *) (dynamic_info)[DT_REL]->d_un.d_ptr;
(dynamic_info)[DT_RELSZ]->d_un.d_val -= sizeof (Elf32_Rel);
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
MAP is the object containing the reloc. */

33
sysdeps/mach/hurd/select.c
View File

@ -121,16 +121,39 @@ DEFUN(__select, (nfds, readfds, writefds, exceptfds, timeout),
if (!err)
{
int tag = i;
int type = types[i];
err = __io_select (ports[i], port,
/* Poll for each but the last. */
(i == lastfd && got == 0) ? to : 0,
&types[i], &tag);
if (!err)
&type, &tag);
switch (err)
{
if (tag != i)
case MACH_RCV_TIMED_OUT:
/* No immediate response. This is normal. */
err = 0;
break;
case 0:
/* We got an answer. This is not necessarily the answer to
the query we sent just now. It may correspond to any
prior query which timed out before its answer arrived. */
if (tag < 0 || tag > i ||
(type & (SELECT_READ|SELECT_URG|SELECT_WRITE)) == 0)
/* This is not a proper answer to any query we have yet
made. */
err = EGRATUITOUS;
else if (types[i] & (SELECT_READ|SELECT_URG|SELECT_WRITE))
++got;
else
{
/* Some port is ready. TAG tells us which. */
types[tag] &= type;
++got;
}
break;
default:
/* Any other error kills us.
But we must continue to loop to free the ports. */
break;
}
}
_hurd_port_free (&cells[i]->port, &ulink[i], ports[i]);