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/fdopen.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/fdopen.c')
| -rw-r--r-- | sys/src/ape/lib/ap/stdio/fdopen.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sys/src/ape/lib/ap/stdio/fdopen.c b/sys/src/ape/lib/ap/stdio/fdopen.c index 0c585b965..cb10d98e7 100644 --- a/sys/src/ape/lib/ap/stdio/fdopen.c +++ b/sys/src/ape/lib/ap/stdio/fdopen.c @@ -14,10 +14,8 @@ */ FILE *fdopen(const int fd, const char *mode){ FILE *f; - for(f=_IO_stream;f!=&_IO_stream[FOPEN_MAX];f++) - if(f->state==CLOSED) - break; - if(f==&_IO_stream[FOPEN_MAX]) + + if((f = _IO_newfile()) == NULL) return NULL; f->fd=fd; if(mode[0]=='a') |