/*
* wrappers around low-level operations to provide a simpler interface
- * to the operations that Lisp needs
+ * to the operations that Lisp (and some contributed modules) needs.
*
* The functions in this file are typically called directly from Lisp.
* Thus, when their signature changes, they don't need updates in a .h
* files for more information.
*/
+#include "sbcl.h"
+
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include <unistd.h>
+#ifndef LISP_FEATURE_WIN32
#include <pwd.h>
+#include <sys/wait.h>
+#include <netdb.h>
+#endif
#include <stdio.h>
-#include "sbcl.h"
#include "runtime.h"
#include "util.h"
* readlink(2) stuff
*/
+#ifndef LISP_FEATURE_WIN32
/* a wrapped version of readlink(2):
* -- If path isn't a symlink, or is a broken symlink, return 0.
* -- If path is a symlink, return a newly allocated string holding
}
}
}
+#endif
\f
/*
* stat(2) stuff
*
* Some motivated spark fixed MIPS. -- ths, 2005-10-06 */
-#ifdef LISP_FEATURE_MIPS
+#if defined (LISP_FEATURE_LARGEFILE)
+typedef dev_t ffi_dev_t;
+typedef off_t ffi_off_t;
+#elif defined(LISP_FEATURE_MIPS)
typedef unsigned long ffi_dev_t; /* Linux/MIPS struct stat doesn't use dev_t */
typedef off_t ffi_off_t;
#else
ffi_dev_t wrapped_st_dev; /* device */
ino_t wrapped_st_ino; /* inode */
mode_t wrapped_st_mode; /* protection */
+#ifndef LISP_FEATURE_WIN32
nlink_t wrapped_st_nlink; /* number of hard links */
uid_t wrapped_st_uid; /* user ID of owner */
gid_t wrapped_st_gid; /* group ID of owner */
+#else
+ short wrapped_st_nlink; /* Win32 doesn't have nlink_t */
+ short wrapped_st_uid; /* Win32 doesn't have st_uid */
+ short wrapped_st_gid; /* Win32 doesn't have st_gid */
+#endif
ffi_dev_t wrapped_st_rdev; /* device type (if inode device) */
ffi_off_t wrapped_st_size; /* total size, in bytes */
unsigned long wrapped_st_blksize; /* blocksize for filesystem I/O */
copy_to_stat_wrapper(struct stat_wrapper *to, struct stat *from)
{
#define FROB(stem) to->wrapped_st_##stem = from->st_##stem
+#ifndef LISP_FEATURE_WIN32
+#define FROB2(stem) to->wrapped_st_##stem = from->st_##stem
+#else
+#define FROB2(stem) to->wrapped_st_##stem = 0;
+#endif
FROB(dev);
- FROB(ino);
+ FROB2(ino);
FROB(mode);
FROB(nlink);
- FROB(uid);
- FROB(gid);
+ FROB2(uid);
+ FROB2(gid);
FROB(rdev);
FROB(size);
- FROB(blksize);
- FROB(blocks);
+ FROB2(blksize);
+ FROB2(blocks);
FROB(atime);
FROB(mtime);
FROB(ctime);
{
struct stat real_buf;
int ret;
+
+#ifdef LISP_FEATURE_WIN32
+ /*
+ * Windows won't match the last component of a pathname if there
+ * is a trailing #\/ or #\\, except if it's <drive>:\ or <drive>:/
+ * in which case it behaves the other way around. So we remove the
+ * trailing directory separator unless we are being passed just a
+ * drive name (e.g. "c:\\"). Some, but not all, of this
+ * strangeness is documented at Microsoft's support site (as of
+ * 2006-01-08, at
+ * <http://support.microsoft.com/default.aspx?scid=kb;en-us;168439>)
+ */
+ char file_buf[MAX_PATH];
+ strcpy(file_buf, file_name);
+ int len = strlen(file_name);
+ if (len != 0 && (file_name[len-1] == '/' || file_name[len-1] == '\\') &&
+ !(len == 3 && file_name[1] == ':' && isalpha(file_name[0])))
+ file_buf[len-1] = '\0';
+ file_name = file_buf;
+#endif
+
if ((ret = stat(file_name,&real_buf)) >= 0)
copy_to_stat_wrapper(buf, &real_buf);
return ret;
}
+#ifndef LISP_FEATURE_WIN32
int
lstat_wrapper(const char *file_name, struct stat_wrapper *buf)
{
copy_to_stat_wrapper(buf, &real_buf);
return ret;
}
+#else
+/* cleaner to do it here than in Lisp */
+int lstat_wrapper(const char *file_name, struct stat_wrapper *buf)
+{
+ return stat_wrapper(file_name, buf);
+}
+#endif
int
fstat_wrapper(int filedes, struct stat_wrapper *buf)
* getpwuid() stuff
*/
+#ifndef LISP_FEATURE_WIN32
/* Return a newly-allocated string holding the username for "uid", or
* NULL if there's no such user.
*
return 0;
}
}
+#endif /* !LISP_FEATURE_WIN32 */
\f
/*
* functions to get miscellaneous C-level variables
{
return environ;
}
+
+#ifdef LISP_FEATURE_WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <time.h>
+/*
+ * faked-up implementation of select(). Right now just enough to get through
+ * second genesis.
+ */
+int select(int top_fd, DWORD *read_set, DWORD *write_set, DWORD *except_set, time_t *timeout)
+{
+ /*
+ * FIXME: Going forward, we may want to use MsgWaitForMultipleObjects
+ * in order to support a windows message loop inside serve-event.
+ */
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ int fds[MAXIMUM_WAIT_OBJECTS];
+ int num_handles;
+ int i;
+ DWORD retval;
+ int polling_write;
+ DWORD win_timeout;
+
+ num_handles = 0;
+ polling_write = 0;
+ for (i = 0; i < top_fd; i++) {
+ if (except_set) except_set[i >> 5] = 0;
+ if (write_set && (write_set[i >> 5] & (1 << (i & 31)))) polling_write = 1;
+ if (read_set[i >> 5] & (1 << (i & 31))) {
+ read_set[i >> 5] &= ~(1 << (i & 31));
+ fds[num_handles] = i;
+ handles[num_handles++] = (HANDLE) _get_osfhandle(i);
+ }
+ }
+
+ win_timeout = INFINITE;
+ if (timeout) win_timeout = (timeout[0] * 1000) + timeout[1];
+
+ /* Last parameter here is timeout in milliseconds. */
+ /* retval = WaitForMultipleObjects(num_handles, handles, 0, INFINITE); */
+ retval = WaitForMultipleObjects(num_handles, handles, 0, win_timeout);
+
+ if (retval < WAIT_ABANDONED) {
+ /* retval, at this point, is the index of the single live HANDLE/fd. */
+ read_set[fds[retval] >> 5] |= (1 << (fds[retval] & 31));
+ return 1;
+ }
+ return polling_write;
+}
+
+/*
+ * Windows doesn't have gettimeofday(), and we need it for the compiler,
+ * for serve-event, and for a couple other things. We don't need a timezone
+ * yet, however, and the closest we can easily get to a timeval is the
+ * seconds part. So that's what we do.
+ */
+int gettimeofday(long *timeval, long *timezone)
+{
+ timeval[0] = time(NULL);
+ timeval[1] = 0;
+
+ return 0;
+}
+#endif
+
+
+/* We will need to define these things or their equivalents for Win32
+ eventually, but for now let's get it working for everyone else. */
+#ifndef LISP_FEATURE_WIN32
+/* From SB-BSD-SOCKETS, to get h_errno */
+int get_h_errno()
+{
+ return h_errno;
+}
+
+/* From SB-POSIX, wait-macros */
+int wifexited(int status) {
+ return WIFEXITED(status);
+}
+int wexitstatus(int status) {
+ return WEXITSTATUS(status);
+}
+int wifsignaled(int status) {
+ return WIFSIGNALED(status);
+}
+int wtermsig(int status) {
+ return WTERMSIG(status);
+}
+int wifstopped(int status) {
+ return WIFSTOPPED(status);
+}
+int wstopsig(int status) {
+ return WSTOPSIG(status);
+}
+/* FIXME: POSIX also defines WIFCONTINUED, but that appears not to
+ exist on at least Linux... */
+#endif /* !LISP_FEATURE_WIN32 */
+
+/* From SB-POSIX, stat-macros */
+int s_isreg(mode_t mode)
+{
+ return S_ISREG(mode);
+}
+int s_isdir(mode_t mode)
+{
+ return S_ISDIR(mode);
+}
+int s_ischr(mode_t mode)
+{
+ return S_ISCHR(mode);
+}
+int s_isblk(mode_t mode)
+{
+ return S_ISBLK(mode);
+}
+int s_isfifo(mode_t mode)
+{
+ return S_ISFIFO(mode);
+}
+#ifndef LISP_FEATURE_WIN32
+int s_islnk(mode_t mode)
+{
+#ifdef S_ISLNK
+ return S_ISLNK(mode);
+#else
+ return ((mode & S_IFMT) == S_IFLNK);
+#endif
+}
+int s_issock(mode_t mode)
+{
+#ifdef S_ISSOCK
+ return S_ISSOCK(mode);
+#else
+ return ((mode & S_IFMT) == S_IFSOCK);
+#endif
+}
+#endif /* !LISP_FEATURE_WIN32 */
projects / sbcl.git / blobdiff