tdifferent fix - plan9port - [fork] Plan 9 from user space
HTML git clone git://src.adamsgaard.dk/plan9port
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit f19d56825d36b224a376b4012c7656871d9b1535
DIR parent d407972b54c11282a62788f5d1812ac6603c4234
HTML Author: rsc <devnull@localhost>
Date: Thu, 28 Jul 2005 12:43:41 +0000
different fix
Diffstat:
M src/libthread/BSD.c | 7 ++++++-
M src/libthread/Linux.c | 10 ++++++----
2 files changed, 12 insertions(+), 5 deletions(-)
---
DIR diff --git a/src/libthread/BSD.c b/src/libthread/BSD.c
t@@ -285,6 +285,9 @@ threadexitsall(char *msg)
int i, npid, mypid;
Proc *p;
+ if(msg == nil)
+ msg = "";
+
/*
* Only one guy, ever, gets to run this.
* If two guys do it, inevitably they end up
t@@ -296,7 +299,9 @@ threadexitsall(char *msg)
*/
{
static Lock onelock;
- lock(&onelock);
+ if(!canlock(&onelock))
+ _exits(threadexitsmsg);
+ threadexitsmsg = msg;
}
if(msg == nil)
DIR diff --git a/src/libthread/Linux.c b/src/libthread/Linux.c
t@@ -311,6 +311,9 @@ threadexitsall(char *msg)
int i, npid, mypid;
Proc *p;
+ if(msg == nil)
+ msg = "";
+
/*
* Only one guy, ever, gets to run this.
* If two guys do it, inevitably they end up
t@@ -322,14 +325,13 @@ threadexitsall(char *msg)
*/
{
static Lock onelock;
- lock(&onelock);
+ if(!canlock(&onelock))
+ _exits(threadexitsmsg);
+ threadexitsmsg = msg;
}
- if(msg == nil)
- msg = "";
mypid = getpid();
lock(&_threadprocslock);
- threadexitsmsg = msg;
npid = 0;
for(p=_threadprocs; p; p=p->next)
if(p->osprocid != mypid && p->osprocid >= 1)