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| author | Roland McGrath <roland@gnu.org> | 1995-08-31 00:02:32 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-08-31 00:02:32 +0000 |
| commit | a993273c0d4d1907028adee7a2ae012826fd316c (patch) | |
| tree | 3b1f5f64ea2b79fff7a61283d1ae60ac9291f38f /hurd/intr-msg.c | |
| parent | 18926cf415b65008c849b592209a85f733be39f7 (diff) | |
| download | glibc-a993273c0d4d1907028adee7a2ae012826fd316c.zip glibc-a993273c0d4d1907028adee7a2ae012826fd316c.tar.gz glibc-a993273c0d4d1907028adee7a2ae012826fd316c.tar.bz2 | |
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.
Diffstat (limited to 'hurd/intr-msg.c')
| -rw-r--r-- | hurd/intr-msg.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/hurd/intr-msg.c b/hurd/intr-msg.c index 024cbfb..b345e72 100644 --- a/hurd/intr-msg.c +++ b/hurd/intr-msg.c @@ -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. */ |