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Lots of minor changes. Note for mappingobject.c: the hash table pointer

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can now be NULL.
This commit is contained in:
Guido van Rossum 1995-01-02 19:07:15 +00:00
parent 1ae940a587
commit d7047b395e
12 changed files with 172 additions and 98 deletions
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50
Objects/fileobject.c
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@ -94,7 +94,7 @@ newfileobject(name, mode)
f = (fileobject *) newopenfileobject((FILE *)NULL, name, mode, fclose);
if (f == NULL)
return NULL;
#ifdef USE_FOPENRF
#ifdef HAVE_FOPENRF
if (*mode == '*') {
FILE *fopenRF();
f->f_fp = fopenRF(name, mode+1);
@ -231,6 +231,51 @@ file_seek(f, args)
return None;
}
#ifdef HAVE_FTRUNCATE
static object *
file_truncate(f, args)
fileobject *f;
object *args;
{
long newsize;
int ret;
if (f->f_fp == NULL)
return err_closed();
if (!getargs(args, "l", &newsize)) {
err_clear();
if (!getnoarg(args))
return NULL;
BGN_SAVE
errno = 0;
newsize = ftell(f->f_fp); /* default to current position*/
END_SAVE
if (newsize == -1L) {
err_errno(IOError);
clearerr(f->f_fp);
return NULL;
}
}
BGN_SAVE
errno = 0;
ret = fflush(f->f_fp);
END_SAVE
if (ret == 0) {
BGN_SAVE
errno = 0;
ret = ftruncate(fileno(f->f_fp), newsize);
END_SAVE
}
if (ret != 0) {
err_errno(IOError);
clearerr(f->f_fp);
return NULL;
}
INCREF(None);
return None;
}
#endif /* HAVE_FTRUNCATE */
static object *
file_tell(f, args)
fileobject *f;
@ -615,6 +660,9 @@ static struct methodlist file_methods[] = {
{"readline", (method)file_readline},
{"readlines", (method)file_readlines},
{"seek", (method)file_seek},
#ifdef HAVE_FTRUNCATE
{"truncate", (method)file_truncate},
#endif
{"tell", (method)file_tell},
{"write", (method)file_write},
{"writelines", (method)file_writelines},