Date: Wed, 29 Apr 1998 02:59:46 -0700 (PDT) From: John Birrell <jb@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-lib@FreeBSD.ORG Subject: cvs commit: src/lib/libc_r/uthread uthread_find_thread.c uthread_spinlock.c Makefile.inc pthread_private.h uthread_accept.c uthread_bind.c uthread_close.c uthread_cond.c uthread_connect.c uthread_create.c uthread_detach.c uthread_dup.c uthread_dup2.c uthread_execve.c ... Message-ID: <199804290959.CAA23081@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
jb 1998/04/29 02:59:45 PDT
Modified files:
lib/libc_r/uthread Makefile.inc pthread_private.h
uthread_accept.c uthread_bind.c
uthread_close.c uthread_cond.c
uthread_connect.c uthread_create.c
uthread_detach.c uthread_dup.c
uthread_dup2.c uthread_execve.c
uthread_exit.c uthread_fchmod.c
uthread_fchown.c uthread_fcntl.c
uthread_fd.c uthread_file.c
uthread_flock.c uthread_fork.c
uthread_fstat.c uthread_fstatfs.c
uthread_fsync.c uthread_getdirentries.c
uthread_getpeername.c uthread_getprio.c
uthread_getsockname.c
uthread_getsockopt.c uthread_info.c
uthread_init.c uthread_ioctl.c
uthread_join.c uthread_kern.c
uthread_kill.c uthread_listen.c
uthread_mutex.c uthread_nanosleep.c
uthread_open.c uthread_pipe.c
uthread_read.c uthread_readv.c
uthread_recvfrom.c uthread_resume_np.c
uthread_select.c uthread_sendto.c
uthread_seterrno.c uthread_setprio.c
uthread_setsockopt.c uthread_shutdown.c
uthread_sig.c uthread_sigaction.c
uthread_sigblock.c uthread_sigmask.c
uthread_sigprocmask.c
uthread_sigsetmask.c uthread_sigsuspend.c
uthread_sigwait.c uthread_socket.c
uthread_socketpair.c uthread_spec.c
uthread_suspend_np.c uthread_wait4.c
uthread_write.c uthread_writev.c
Added files:
lib/libc_r/uthread uthread_find_thread.c uthread_spinlock.c
Log:
Change signal model to match POSIX (i.e. one set of signal handlers
for the process, not a separate set for each thread). By default, the
process now only has signal handlers installed for SIGVTALRM, SIGINFO
and SIGCHLD. The thread kernel signal handler is installed for other
signals on demand. This means that SIG_IGN and SIG_DFL processing is now
left to the kernel, not the thread kernel.
Change the signal dispatch to no longer use a signal thread, and
call the signal handler using the stack of the thread that has the
signal pending.
Change the atomic lock method to use test-and-set asm code with
a yield if blocked. This introduces separate locks for each type
of object instead of blocking signals to prevent a context
switch. It was this blocking of signals that caused the performance
degradation the people have noted.
This is a *big* change!
Revision Changes Path
1.11 +4 -5 src/lib/libc_r/uthread/Makefile.inc
1.10 +51 -32 src/lib/libc_r/uthread/pthread_private.h
1.6 +6 -4 src/lib/libc_r/uthread/uthread_accept.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_bind.c
1.3 +1 -8 src/lib/libc_r/uthread/uthread_close.c
1.9 +68 -65 src/lib/libc_r/uthread/uthread_cond.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_connect.c
1.9 +27 -122 src/lib/libc_r/uthread/uthread_create.c
1.6 +3 -10 src/lib/libc_r/uthread/uthread_detach.c
1.2 +32 -0 src/lib/libc_r/uthread/uthread_dup.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_dup2.c
1.3 +5 -8 src/lib/libc_r/uthread/uthread_execve.c
1.4 +11 -35 src/lib/libc_r/uthread/uthread_exit.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_fchmod.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_fchown.c
1.3 +2 -7 src/lib/libc_r/uthread/uthread_fcntl.c
1.6 +53 -36 src/lib/libc_r/uthread/uthread_fd.c
1.3 +25 -18 src/lib/libc_r/uthread/uthread_file.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_flock.c
1.5 +7 -7 src/lib/libc_r/uthread/uthread_fork.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_fstat.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_fstatfs.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_fsync.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_getdirentries.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_getpeername.c
1.3 +9 -26 src/lib/libc_r/uthread/uthread_getprio.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_getsockname.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_getsockopt.c
1.5 +1 -1 src/lib/libc_r/uthread/uthread_info.c
1.7 +22 -33 src/lib/libc_r/uthread/uthread_init.c
1.3 +4 -10 src/lib/libc_r/uthread/uthread_ioctl.c
1.5 +23 -49 src/lib/libc_r/uthread/uthread_join.c
1.10 +35 -435 src/lib/libc_r/uthread/uthread_kern.c
1.2 +7 -28 src/lib/libc_r/uthread/uthread_kill.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_listen.c
1.6 +47 -65 src/lib/libc_r/uthread/uthread_mutex.c
1.6 +3 -2 src/lib/libc_r/uthread/uthread_nanosleep.c
1.4 +2 -8 src/lib/libc_r/uthread/uthread_open.c
1.3 +1 -1 src/lib/libc_r/uthread/uthread_pipe.c
1.4 +3 -4 src/lib/libc_r/uthread/uthread_read.c
1.4 +3 -4 src/lib/libc_r/uthread/uthread_readv.c
1.2 +4 -2 src/lib/libc_r/uthread/uthread_recvfrom.c
1.3 +9 -25 src/lib/libc_r/uthread/uthread_resume_np.c
1.3 +7 -2 src/lib/libc_r/uthread/uthread_select.c
1.2 +9 -1 src/lib/libc_r/uthread/uthread_sendto.c
1.2 +2 -3 src/lib/libc_r/uthread/uthread_seterrno.c
1.3 +8 -32 src/lib/libc_r/uthread/uthread_setprio.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_setsockopt.c
1.3 +1 -1 src/lib/libc_r/uthread/uthread_shutdown.c
1.4 +226 -71 src/lib/libc_r/uthread/uthread_sig.c
1.3 +37 -15 src/lib/libc_r/uthread/uthread_sigaction.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_sigblock.c
1.2 +5 -8 src/lib/libc_r/uthread/uthread_sigmask.c
1.3 +4 -8 src/lib/libc_r/uthread/uthread_sigprocmask.c
1.2 +1 -1 src/lib/libc_r/uthread/uthread_sigsetmask.c
1.4 +3 -0 src/lib/libc_r/uthread/uthread_sigsuspend.c
1.2 +0 -9 src/lib/libc_r/uthread/uthread_sigwait.c
1.3 +1 -1 src/lib/libc_r/uthread/uthread_socket.c
1.4 +2 -2 src/lib/libc_r/uthread/uthread_socketpair.c
1.6 +44 -66 src/lib/libc_r/uthread/uthread_spec.c
1.3 +15 -23 src/lib/libc_r/uthread/uthread_suspend_np.c
1.2 +6 -6 src/lib/libc_r/uthread/uthread_wait4.c
1.5 +3 -4 src/lib/libc_r/uthread/uthread_write.c
1.5 +3 -4 src/lib/libc_r/uthread/uthread_writev.c
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199804290959.CAA23081>