#include <mbstring.h> /* for _mbspbrk */
#include <math.h>
#include <setjmp.h>
+#include <time.h>
/* must include CRT headers *before* config.h */
#undef strerror
+#undef localtime
+
#include "lisp.h"
#include <pwd.h>
#include "dispextern.h" /* for xstrcasecmp */
#include "coding.h" /* for Vlocale_coding_system */
+#include "careadlinkat.h"
+#include "allocator.h"
+
/* For serial_configure and serial_open. */
#include "process.h"
typedef HRESULT (WINAPI * ShGetFolderPath_fn)
(IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *);
+Lisp_Object QCloaded_from;
+
void globals_of_w32 (void);
static DWORD get_rid (PSID);
}
char *get_emacs_configuration (void);
+
void
init_environment (char ** argv)
{
char locale_name[32];
struct stat ignored;
char default_home[MAX_PATH];
+ int appdata = 0;
static const struct env_entry
{
If not, then we can try to default to the appdata directory under the
user's profile, which is more likely to be writable. */
if (stat ("C:/.emacs", &ignored) < 0)
- {
- HRESULT profile_result;
- /* Dynamically load ShGetFolderPath, as it won't exist on versions
- of Windows 95 and NT4 that have not been updated to include
- MSIE 5. */
- ShGetFolderPath_fn get_folder_path;
- get_folder_path = (ShGetFolderPath_fn)
- GetProcAddress (GetModuleHandle ("shell32.dll"), "SHGetFolderPathA");
-
- if (get_folder_path != NULL)
- {
- profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL,
- 0, default_home);
+ {
+ HRESULT profile_result;
+ /* Dynamically load ShGetFolderPath, as it won't exist on versions
+ of Windows 95 and NT4 that have not been updated to include
+ MSIE 5. */
+ ShGetFolderPath_fn get_folder_path;
+ get_folder_path = (ShGetFolderPath_fn)
+ GetProcAddress (GetModuleHandle ("shell32.dll"), "SHGetFolderPathA");
+
+ if (get_folder_path != NULL)
+ {
+ profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL,
+ 0, default_home);
- /* If we can't get the appdata dir, revert to old behavior. */
- if (profile_result == S_OK)
- env_vars[0].def_value = default_home;
- }
- }
+ /* If we can't get the appdata dir, revert to old behavior. */
+ if (profile_result == S_OK)
+ {
+ env_vars[0].def_value = default_home;
+ appdata = 1;
+ }
+ }
+ }
/* Get default locale info and use it for LANG. */
if (GetLocaleInfo (LOCALE_USER_DEFAULT,
lpval = env_vars[i].def_value;
dwType = REG_EXPAND_SZ;
dont_free = 1;
+ if (!strcmp (env_vars[i].name, "HOME") && !appdata)
+ {
+ Lisp_Object warning[2];
+ warning[0] = intern ("initialization");
+ warning[1] = build_string ("Setting HOME to C:\\ by default is deprecated");
+ Vdelayed_warnings_list = Fcons (Flist (2, warning),
+ Vdelayed_warnings_list);
+ }
}
if (lpval)
tv->tv_sec = tb.time;
tv->tv_usec = tb.millitm * 1000L;
+ /* Implementation note: _ftime sometimes doesn't update the dstflag
+ according to the new timezone when the system timezone is
+ changed. We could fix that by using GetSystemTime and
+ GetTimeZoneInformation, but that doesn't seem necessary, since
+ Emacs always calls gettimeofday with the 2nd argument NULL (see
+ EMACS_GET_TIME). */
if (tz)
{
tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
info = lookup_volume_info (root_dir);
if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
- {
- char name[ 256 ];
- DWORD serialnum;
- DWORD maxcomp;
- DWORD flags;
- char type[ 256 ];
-
- /* Info is not cached, or is stale. */
- if (!GetVolumeInformation (root_dir,
- name, sizeof (name),
- &serialnum,
- &maxcomp,
- &flags,
- type, sizeof (type)))
- return NULL;
+ {
+ char name[ 256 ];
+ DWORD serialnum;
+ DWORD maxcomp;
+ DWORD flags;
+ char type[ 256 ];
+
+ /* Info is not cached, or is stale. */
+ if (!GetVolumeInformation (root_dir,
+ name, sizeof (name),
+ &serialnum,
+ &maxcomp,
+ &flags,
+ type, sizeof (type)))
+ return NULL;
- /* Cache the volume information for future use, overwriting existing
- entry if present. */
- if (info == NULL)
- {
- info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
- add_volume_info (root_dir, info);
- }
- else
- {
- xfree (info->name);
- xfree (info->type);
- }
+ /* Cache the volume information for future use, overwriting existing
+ entry if present. */
+ if (info == NULL)
+ {
+ info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
+ add_volume_info (root_dir, info);
+ }
+ else
+ {
+ xfree (info->name);
+ xfree (info->type);
+ }
- info->name = xstrdup (name);
- info->serialnum = serialnum;
- info->maxcomp = maxcomp;
- info->flags = flags;
- info->type = xstrdup (type);
- info->timestamp = GetTickCount ();
- }
+ info->name = xstrdup (name);
+ info->serialnum = serialnum;
+ info->maxcomp = maxcomp;
+ info->flags = flags;
+ info->type = xstrdup (type);
+ info->timestamp = GetTickCount ();
+ }
return info;
}
}
\f
-/* Symlink-related functions that always fail. Used in fileio.c to
- avoid #ifdef's. */
+/* Symlink-related functions that always fail. Used in fileio.c and in
+ sysdep.c to avoid #ifdef's. */
int
symlink (char const *dummy1, char const *dummy2)
{
return -1;
}
+char *
+careadlinkat (int fd, char const *filename,
+ char *buffer, size_t buffer_size,
+ struct allocator const *alloc,
+ ssize_t (*preadlinkat) (int, char const *, char *, size_t))
+{
+ errno = ENOSYS;
+ return NULL;
+}
+
+ssize_t
+careadlinkatcwd (int fd, char const *filename, char *buffer,
+ size_t buffer_size)
+{
+ (void) fd;
+ return readlink (filename, buffer, buffer_size);
+}
+
\f
/* Support for browsing other processes and their attributes. See
process.c for the Lisp bindings. */
return nchars;
}
+/* The Windows CRT functions are "optimized for speed", so they don't
+ check for timezone and DST changes if they were last called less
+ than 1 minute ago (see http://support.microsoft.com/kb/821231). So
+ all Emacs features that repeatedly call time functions (e.g.,
+ display-time) are in real danger of missing timezone and DST
+ changes. Calling tzset before each localtime call fixes that. */
+struct tm *
+sys_localtime (const time_t *t)
+{
+ tzset ();
+ return localtime (t);
+}
+
+
+\f
+/* Delayed loading of libraries. */
+
+Lisp_Object Vlibrary_cache;
+
+/* The argument LIBRARIES is an alist that associates a symbol
+ LIBRARY_ID, identifying an external DLL library known to Emacs, to
+ a list of filenames under which the library is usually found. In
+ most cases, the argument passed as LIBRARIES is the variable
+ `dynamic-library-alist', which is initialized to a list of common
+ library names. If the function loads the library successfully, it
+ returns the handle of the DLL, and records the filename in the
+ property :loaded-from of LIBRARY_ID; it returns NULL if the library
+ could not be found, or when it was already loaded (because the
+ handle is not recorded anywhere, and so is lost after use). It
+ would be trivial to save the handle too in :loaded-from, but
+ currently there's no use case for it. */
+HMODULE
+w32_delayed_load (Lisp_Object libraries, Lisp_Object library_id)
+{
+ HMODULE library_dll = NULL;
+
+ CHECK_SYMBOL (library_id);
+
+ if (CONSP (libraries) && NILP (Fassq (library_id, Vlibrary_cache)))
+ {
+ Lisp_Object found = Qnil;
+ Lisp_Object dlls = Fassq (library_id, libraries);
+
+ if (CONSP (dlls))
+ for (dlls = XCDR (dlls); CONSP (dlls); dlls = XCDR (dlls))
+ {
+ CHECK_STRING_CAR (dlls);
+ if (library_dll = LoadLibrary (SDATA (XCAR (dlls))))
+ {
+ found = XCAR (dlls);
+ break;
+ }
+ }
+
+ Fput (library_id, QCloaded_from, found);
+ }
+
+ return library_dll;
+}
+
+\f
static void
check_windows_init_file (void)
{
get_process_times_fn = (GetProcessTimes_Proc)
GetProcAddress (kernel32, "GetProcessTimes");
+ QCloaded_from = intern_c_string (":loaded-from");
+ staticpro (&QCloaded_from);
+
+ Vlibrary_cache = Qnil;
+ staticpro (&Vlibrary_cache);
+
g_b_init_is_windows_9x = 0;
g_b_init_open_process_token = 0;
g_b_init_get_token_information = 0;
p->childp = childp2;
}
-/* end of w32.c */
+#ifdef HAVE_GNUTLS
+
+ssize_t
+emacs_gnutls_pull (gnutls_transport_ptr_t p, void* buf, size_t sz)
+{
+ int n, sc, err;
+ SELECT_TYPE fdset;
+ EMACS_TIME timeout;
+ struct Lisp_Process *process = (struct Lisp_Process *)p;
+ int fd = process->infd;
+ for (;;)
+ {
+ n = sys_read(fd, (char*)buf, sz);
+
+ if (n >= 0)
+ return n;
+
+ err = errno;
+
+ if (err == EWOULDBLOCK)
+ {
+ /* Set a small timeout. */
+ EMACS_SET_SECS_USECS(timeout, 1, 0);
+ FD_ZERO (&fdset);
+ FD_SET ((int)fd, &fdset);
+
+ /* Use select with the timeout to poll the selector. */
+ sc = select (fd + 1, &fdset, (SELECT_TYPE *)0, (SELECT_TYPE *)0,
+ &timeout);
+
+ if (sc > 0)
+ continue; /* Try again. */
+
+ /* Translate the WSAEWOULDBLOCK alias EWOULDBLOCK to EAGAIN.
+ Also accept select return 0 as an indicator to EAGAIN. */
+ if (sc == 0 || errno == EWOULDBLOCK)
+ err = EAGAIN;
+ else
+ err = errno; /* Other errors are just passed on. */
+ }
+
+ emacs_gnutls_transport_set_errno (process->gnutls_state, err);
+
+ return -1;
+ }
+}
+
+ssize_t
+emacs_gnutls_push (gnutls_transport_ptr_t p, const void* buf, size_t sz)
+{
+ struct Lisp_Process *process = (struct Lisp_Process *)p;
+ int fd = process->outfd;
+ ssize_t n = sys_write(fd, buf, sz);
+
+ /* 0 or more bytes written means everything went fine. */
+ if (n >= 0)
+ return n;
+
+ /* Negative bytes written means we got an error in errno.
+ Translate the WSAEWOULDBLOCK alias EWOULDBLOCK to EAGAIN. */
+ emacs_gnutls_transport_set_errno (process->gnutls_state,
+ errno == EWOULDBLOCK ? EAGAIN : errno);
+
+ return -1;
+}
+#endif /* HAVE_GNUTLS */
+
+/* end of w32.c */
HCoop / bpt / emacs.git / blobdiff