d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Replace use of a spinlock with a mutex.

Browse Source
This commit is contained in:
Daniel Eischen 2003-05-04 22:36:46 +00:00
parent c72cd7c9e2
commit e8baaa7062
2 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/libc/net/getaddrinfo.c
View File

@ -77,6 +77,7 @@ __FBSDID("$FreeBSD$");
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <netdb.h>
#include <pthread.h>
#include <resolv.h>
#include <string.h>
#include <stdlib.h>
@ -256,20 +257,17 @@ static char *ai_errlist[] = {
"Unknown error", /* EAI_MAX */
};
/* Make getaddrinfo() thread-safe in libc for use with kernel threads. */
#include "libc_private.h"
#include "spinlock.h"
/*
* XXX: Our res_*() is not thread-safe. So, we share lock between
* getaddrinfo() and getipnodeby*(). Still, we cannot use
* getaddrinfo() and getipnodeby*() in conjunction with other
* functions which call res_*().
*/
spinlock_t __getaddrinfo_thread_lock = _SPINLOCK_INITIALIZER;
pthread_mutex_t __getaddrinfo_thread_lock = PTHREAD_MUTEX_INITIALIZER;
#define THREAD_LOCK() \
if (__isthreaded) _SPINLOCK(&__getaddrinfo_thread_lock);
if (__isthreaded) _pthread_mutex_lock(&__getaddrinfo_thread_lock);
#define THREAD_UNLOCK() \
if (__isthreaded) _SPINUNLOCK(&__getaddrinfo_thread_lock);
if (__isthreaded) _pthread_mutex_unlock(&__getaddrinfo_thread_lock);
/* XXX macros that make external reference is BAD. */

11
lib/libc/net/name6.c
View File

@ -114,6 +114,7 @@ __FBSDID("$FreeBSD$");
#include <string.h>
#include <stdarg.h>
#include <nsswitch.h>
#include <pthread.h>
#include <unistd.h>
#include "un-namespace.h"
@ -189,20 +190,18 @@ static void _dns_ehent(void) __unused;
static int _icmp_ghbyaddr(void *, void *, va_list);
#endif /* ICMPNL */
/* Make getipnodeby*() thread-safe in libc for use with kernel threads. */
#include "libc_private.h"
#include "spinlock.h"
/*
* XXX: Our res_*() is not thread-safe. So, we share lock between
* getaddrinfo() and getipnodeby*(). Still, we cannot use
* getaddrinfo() and getipnodeby*() in conjunction with other
* functions which call res_*().
*/
extern spinlock_t __getaddrinfo_thread_lock;
#include "libc_private.h"
extern pthread_mutex_t __getaddrinfo_thread_lock;
#define THREAD_LOCK() \
if (__isthreaded) _SPINLOCK(&__getaddrinfo_thread_lock);
if (__isthreaded) _pthread_mutex_lock(&__getaddrinfo_thread_lock);
#define THREAD_UNLOCK() \
if (__isthreaded) _SPINUNLOCK(&__getaddrinfo_thread_lock);
if (__isthreaded) _pthread_mutex_unlock(&__getaddrinfo_thread_lock);
/* Host lookup order if nsswitch.conf is broken or nonexistant */
static const ns_src default_src[] = {