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* times.cc (hires::prime): Restore thread priority on failure condition.

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* uinfo.cc (uinfo_init): Use more robust method for determining if process was
invoked from a non-cygwin process.
* sync.h (muto::init): Eliminate "inheritance" parameter.
(new_muto): Reflect removal of parameter.
* sync.cc (muto::init): Ditto.
* cygheap.cc (cygheap_init): Ditto.
* debug.cc (threadname_init): Ditto.
* exceptions.cc (events_init): Ditto.
* malloc.cc (malloc_init): Ditto.
* path.cc (cwdstuff::init): Ditto.
* sigproc.cc (sigproc_init): Ditto.
* grp.cc (group_lock): Use different method for locking with static member.
(read_etc_group): REALLY ensure that read lock mutex is released.
* passwd.cc (passwd_lock): Use different method for locking with static member.
(read_etc_passwd): REALLY ensure that read lock mutex is released.
* shared.cc (sec_user): Correct reversed inheritance test.
This commit is contained in:
Christopher Faylor
2002-02-17 04:59:55 +00:00
parent 9490dffa7b
commit 2bd22312df
14 changed files with 67 additions and 33 deletions
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20
winsup/cygwin/grp.cc
View File

@@ -31,7 +31,7 @@ details. */
/* Read /etc/group only once for better performance. This is done
on the first call that needs information from it. */
static NO_COPY const char *etc_group = "/etc/group";
static const char *etc_group NO_COPY = "/etc/group";
static struct __group16 *group_buf; /* group contents in memory */
static int curr_lines;
static int max_lines;
@@ -119,17 +119,23 @@ add_grp_line (const char *line)
class group_lock
{
pthread_mutex_t mutex;
bool armed;
static NO_COPY pthread_mutex_t mutex;
public:
group_lock (): mutex ((pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER) {}
void arm () {pthread_mutex_lock (&mutex); }
group_lock (bool doit)
{
if (armed = doit)
pthread_mutex_lock (&mutex);
}
~group_lock ()
{
if (mutex != (pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER)
if (armed)
pthread_mutex_unlock (&mutex);
}
};
pthread_mutex_t NO_COPY group_lock::mutex = (pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER;
/* Cygwin internal */
/* Read in /etc/group and save contents in the group cache */
/* This sets group_in_memory_p to 1 so functions in this file can
@@ -145,9 +151,7 @@ read_etc_group ()
strncpy (group_name, "Administrators", sizeof (group_name));
static NO_COPY group_lock here = group_lock();
if (cygwin_finished_initializing)
here.arm ();
group_lock here (cygwin_finished_initializing);
/* if we got blocked by the mutex, then etc_group may have been processed */
if (group_state != uninitialized)