From 9eecb5e8f3903a6fe66ac88f9218935130e77042 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 18 Mar 1998 09:01:59 +0000 Subject: Update. 1998-03-18 Ulrich Drepper * sysdeps/unix/opendir.c (__opendir): Don't block on FIFOs etc. Optimize memmory handling. * sysdeps/unix/closedir.c: Optmize memory handling. --- sysdeps/unix/opendir.c | 42 ++++++++++++++++++------------------------ 1 file changed, 18 insertions(+), 24 deletions(-) (limited to 'sysdeps/unix/opendir.c') diff --git a/sysdeps/unix/opendir.c b/sysdeps/unix/opendir.c index b4e691a3af..2469917f45 100644 --- a/sysdeps/unix/opendir.c +++ b/sysdeps/unix/opendir.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 98 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -36,6 +36,8 @@ __opendir (const char *name) DIR *dirp; struct stat statbuf; int fd; + size_t allocation; + int save_errno; if (name[0] == '\0') { @@ -45,7 +47,7 @@ __opendir (const char *name) return NULL; } - fd = __open (name, O_RDONLY); + fd = __open (name, O_RDONLY|O_NDELAY); if (fd < 0) return NULL; @@ -56,39 +58,31 @@ __opendir (const char *name) goto lose; if (! S_ISDIR (statbuf.st_mode)) { - __set_errno (ENOTDIR); - goto lose; - } - - dirp = (DIR *) calloc (1, sizeof (DIR)); /* Zero-fill. */ - if (dirp == NULL) - lose: - { - int save = errno; - (void) __close (fd); - __set_errno (save); - return NULL; + save_errno = ENOTDIR; + goto lose2; } #ifdef _STATBUF_ST_BLKSIZE if (statbuf.st_blksize < sizeof (struct dirent)) - dirp->allocation = sizeof (struct dirent); + allocation = sizeof (struct dirent); else - dirp->allocation = statbuf.st_blksize; + allocation = statbuf.st_blksize; #else - dirp->allocation = (BUFSIZ < sizeof (struct dirent) ? - sizeof (struct dirent) : BUFSIZ); + allocation = (BUFSIZ < sizeof (struct dirent) + ? sizeof (struct dirent) : BUFSIZ); #endif - dirp->data = (char *) malloc (dirp->allocation); - if (dirp->data == NULL) + + dirp = (DIR *) calloc (1, sizeof (DIR) + allocation); /* Zero-fill. */ + if (dirp == NULL) + lose: { - int save = errno; - free (dirp); + save_errno = errno; + lose2: (void) __close (fd); - __set_errno (save); + __set_errno (save_errno); return NULL; } - + dirp->data = (char *) (dirp + 1); dirp->fd = fd; __libc_lock_init (dirp->lock); -- cgit v1.2.3