/*
- * (c) The GRASP/AQUA Project, Glasgow University, 1994-
+ * (c) The University of Glasgow 2002
*
* Directory Runtime Support
*/
-#include "dirUtils.h"
-#if defined(mingw32_TARGET_OS)
-#include <windows.h>
-#endif
+#include "config.h"
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-#ifdef HAVE_STDDEF_H
-# include <stddef.h>
-#endif
-#ifdef HAVE_ERRNO_H
-# include <errno.h>
+// The following is required on Solaris to force the POSIX versions of
+// the various _r functions instead of the Solaris versions.
+#ifdef solaris2_TARGET_OS
+#define _POSIX_PTHREAD_SEMANTICS
#endif
-HsInt
-prel_mkdir(HsAddr pathName, HsInt mode)
-{
+#include "HsBase.h"
+
#if defined(mingw32_TARGET_OS)
- return mkdir(pathName);
-#else
- return mkdir(pathName,mode);
+#include <windows.h>
#endif
-}
+/*
+ * read an entry from the directory stream; opt for the
+ * re-entrant friendly way of doing this, if available.
+ */
HsInt
-prel_lstat(HsAddr fname, HsAddr st)
+__hscore_readdir( HsAddr dirPtr, HsAddr pDirEnt )
{
-#ifdef HAVE_LSTAT
- return lstat((const char*)fname, (struct stat*)st);
+ struct dirent **pDirE = (struct dirent**)pDirEnt;
+#if HAVE_READDIR_R
+ struct dirent* p;
+ int res;
+ static unsigned int nm_max = -1;
+
+ if (pDirE == NULL) {
+ return -1;
+ }
+ if (nm_max == -1) {
+#ifdef NAME_MAX
+ nm_max = NAME_MAX + 1;
#else
- return stat((const char*)fname, (struct stat*)st);
+ nm_max = pathconf(".", _PC_NAME_MAX);
+ if (nm_max == -1) { nm_max = 255; }
+ nm_max++;
#endif
-}
-
-HsInt prel_s_ISDIR(mode_t m) {return S_ISDIR(m);}
-HsInt prel_s_ISREG(mode_t m) {return S_ISREG(m);}
-
-HsInt prel_sz_stat() { return sizeof(struct stat); }
-HsInt prel_path_max() { return PATH_MAX; }
-mode_t prel_R_OK() { return R_OK; }
-mode_t prel_W_OK() { return W_OK; }
-mode_t prel_X_OK() { return X_OK; }
-
-mode_t prel_S_IRUSR() { return S_IRUSR; }
-mode_t prel_S_IWUSR() { return S_IWUSR; }
-mode_t prel_S_IXUSR() { return S_IXUSR; }
+ }
+ p = (struct dirent*)malloc(sizeof(struct dirent) + nm_max);
+ if (p == NULL) return -1;
+ res = readdir_r((DIR*)dirPtr, p, pDirE);
+ if (res != 0) {
+ *pDirE = NULL;
+ free(p);
+ }
+ return res;
+#else
-time_t prel_st_mtime(struct stat* st) { return st->st_mtime; }
-mode_t prel_st_mode(struct stat* st) { return st->st_mode; }
+ if (pDirE == NULL) {
+ return -1;
+ }
-HsAddr prel_d_name(struct dirent* d)
-{
-#ifndef mingw32_TARGET_OS
- return (HsAddr)(&d->d_name);
-#else
- return (HsAddr)(d->d_name);
+ *pDirE = readdir((DIR*)dirPtr);
+ if (*pDirE == NULL) {
+ return -1;
+ } else {
+ return 0;
+ }
#endif
}
-
-HsInt prel_end_of_dir()
-{
-#ifndef mingw32_TARGET_OS
- return 0;
-#else
- return ENOENT;
-#endif
-}
-