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* passwd.cc (read_etc_passwd): Don't bother with locking when

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in cygwin initialization since there is only one thread.
* grp.cc (read_etc_group): Ditto.
This commit is contained in:
Christopher Faylor
2001-09-28 07:01:22 +00:00
parent 9c61aed684
commit 8b51edbfa6
3 changed files with 33 additions and 14 deletions
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20
winsup/cygwin/grp.cc
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@ -117,6 +117,14 @@ add_grp_line (const char *line)
curr_lines++;
}
class group_lock
{
pthread_mutex_t mutex;
public:
group_lock (): mutex ((pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER) {}
void arm () {pthread_mutex_lock (&mutex); }
};
/* 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
@ -132,15 +140,13 @@ read_etc_group ()
strncpy (group_name, "Administrators", sizeof (group_name));
static NO_COPY pthread_mutex_t etc_group_mutex = (pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_lock (&etc_group_mutex);
static NO_COPY group_lock here;
if (cygwin_finished_initializing)
here.arm ();
/* if we got blocked by the mutex, then etc_group may have been processed */
if (group_state != uninitialized)
{
pthread_mutex_unlock(&etc_group_mutex);
return;
}
return;
if (group_state != initializing)
{
@ -193,7 +199,7 @@ read_etc_group ()
}
}
pthread_mutex_unlock(&etc_group_mutex);
return;
}
extern "C"