diff options
| author | cinap_lenrek <cinap_lenrek@gmx.de> | 2013-03-11 00:48:35 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@gmx.de> | 2013-03-11 00:48:35 +0100 |
| commit | 48b0c10681bb4e0785fa9f737d287531d06fecb7 (patch) | |
| tree | 568f7cdd23400f1e781b82aa044ad39748ff9d78 /sys/src/ape/lib/ap/stdio/_IO_getc.c | |
| parent | 530a2bc5e99ad83c46ce015544cf30173c145bcc (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/_IO_getc.c')
| -rw-r--r-- | sys/src/ape/lib/ap/stdio/_IO_getc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/src/ape/lib/ap/stdio/_IO_getc.c b/sys/src/ape/lib/ap/stdio/_IO_getc.c index 3f99922c2..fbd126df3 100644 --- a/sys/src/ape/lib/ap/stdio/_IO_getc.c +++ b/sys/src/ape/lib/ap/stdio/_IO_getc.c @@ -8,7 +8,7 @@ int _IO_getc(FILE *f){ default: /* CLOSED, WR, ERR, EOF */ return EOF; case OPEN: - _IO_setvbuf(f); + if(_IO_setvbuf(f)!=0) return EOF; case RDWR: case RD: if(f->flags&STRING) return EOF; @@ -17,6 +17,7 @@ int _IO_getc(FILE *f){ else n = f->bufl; cnt=read(f->fd, f->buf, n); + if(f->state==CLOSED) return EOF; switch(cnt){ case -1: f->state=ERR; return EOF; case 0: f->state=END; return EOF; |