Izumi Tsutsui 79761c6681 semaphore: fix a hangup problem under load on NetBSD hosts. ...

Fix following bugs in "fallback implementation of counting semaphores
with mutex+condvar" added in c166cb72f1676855816340666c3b618beef4b976:
 - waiting threads are not restarted properly if more than one threads
   are waiting unblock signals in qemu_sem_timedwait()
 - possible missing pthread_cond_signal(3) calls when waiting threads
   are returned by ETIMEDOUT
 - fix an uninitialized variable
The problem is analyzed by and fix is provided by Noriyuki Soda.

Also put additional cleanup suggested by Laszlo Ersek:
 - make QemuSemaphore.count unsigned (it won't be negative)
 - check a return value of in pthread_cond_wait() in qemu_sem_wait()

Signed-off-by: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1372841894-10634-1-git-send-email-tsutsui@ceres.dti.ne.jp
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

2013-08-05 11:48:00 -05:00

..

acl.c

acl: acl_add can't insert before last list element, fix

2013-06-21 22:52:50 +04:00

aes.c

aes: Remove unused code (NDEBUG, u16)

2013-07-27 11:22:53 +04:00

bitmap.c

…

bitops.c

…

cache-utils.c

…

compatfd.c

…

crc32c.c

qemu: add castagnoli crc32c checksum algorithm

2013-05-03 10:31:58 +02:00

cutils.c

qemu-io: Move qemu_strsep() to cutils.c

2013-06-06 11:27:04 +02:00

envlist.c

…

error.c

error: add error_setg_file_open() helper

2013-06-17 11:01:14 -04:00

event_notifier-posix.c

sysemu: avoid proliferation of include/ subdirectories

2013-04-15 18:19:25 +02:00

event_notifier-win32.c

…

fifo8.c

…

hbitmap.c

…

hexdump.c

Rename hexdump to avoid FreeBSD libutil conflict

2013-05-20 08:20:08 -05:00

host-utils.c

…

iov.c

Rename hexdump to avoid FreeBSD libutil conflict

2013-05-20 08:20:08 -05:00

Makefile.objs

create qemu_openpty_raw() helper function and move it to a separate file

2013-06-14 14:28:43 +04:00

module.c

…

notify.c

notify: add NotiferWithReturn so notifier list can abort

2013-06-28 09:20:26 +02:00

osdep.c

win32: add readv/writev emulation

2013-04-29 10:52:36 +02:00

oslib-posix.c

osdep: add qemu_get_local_state_pathname()

2013-05-30 11:37:37 -05:00

oslib-win32.c

osdep: add qemu_get_local_state_pathname()

2013-05-30 11:37:37 -05:00

path.c

…

qemu-config.c

monitor: introduce query-command-line-options

2013-04-25 10:07:06 -04:00

qemu-error.c

add timestamp to error_report()

2013-07-10 13:42:09 -04:00

qemu-openpty.c

create qemu_openpty_raw() helper function and move it to a separate file

2013-06-14 14:28:43 +04:00

qemu-option.c

qdev: Add SIZE type to qdev properties

2013-07-29 19:33:33 -05:00

qemu-progress.c

…

qemu-sockets.c

qemu-socket: don't leak opts on error

2013-06-28 22:10:34 +04:00

qemu-thread-posix.c

semaphore: fix a hangup problem under load on NetBSD hosts.

2013-08-05 11:48:00 -05:00

qemu-thread-win32.c

…

qemu-timer-common.c

…

unicode.c

unicode: New mod_utf8_codepoint()

2013-04-13 19:39:59 +00:00

uri.c

clean unnecessary code: don't check g_strdup arg for NULL

2013-05-12 13:25:55 +04:00