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authorcinap_lenrek <cinap_lenrek@gmx.de>2013-03-11 00:48:35 +0100
committercinap_lenrek <cinap_lenrek@gmx.de>2013-03-11 00:48:35 +0100
commit48b0c10681bb4e0785fa9f737d287531d06fecb7 (patch)
tree568f7cdd23400f1e781b82aa044ad39748ff9d78 /sys/src/ape/lib/ap/stdio/fflush.c
parent530a2bc5e99ad83c46ce015544cf30173c145bcc (diff)
ape/stdio: make fopen() quasi threadsafe for python
python uses processes sharing memory. it requires at least fopen() to be called by multiple threads at once so we introduce _IO_newfile() which allocates the FILE structure slot under a lock.
Diffstat (limited to 'sys/src/ape/lib/ap/stdio/fflush.c')
-rw-r--r--sys/src/ape/lib/ap/stdio/fflush.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/src/ape/lib/ap/stdio/fflush.c b/sys/src/ape/lib/ap/stdio/fflush.c
index 50a9da28f..28833f4c8 100644
--- a/sys/src/ape/lib/ap/stdio/fflush.c
+++ b/sys/src/ape/lib/ap/stdio/fflush.c
@@ -21,7 +21,8 @@ int fflush(FILE *f){
case WR:
cnt=(f->flags&LINEBUF?f->lp:f->wp)-f->buf;
if(cnt && write(f->fd, f->buf, cnt)!=cnt){
- f->state=ERR;
+ if(f->state!=CLOSED)
+ f->state=ERR;
return EOF;
}
f->rp=f->wp=f->buf;