X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fwin32_replacements.c;h=5b3017a33af07437d178b1215dadef2c94b52241;hb=c0a64271ae792a19b7ed584f8e3da4a70f58c691;hp=41706382ad83b7c4c9fca3344071e52826011a49;hpb=4f9ccdbed3ee79171d0b861c4ba93b54ce8feaac;p=wimlib

diff --git a/src/win32_replacements.c b/src/win32_replacements.c
index 41706382..5b3017a3 100644
--- a/src/win32_replacements.c
+++ b/src/win32_replacements.c
@@ -30,11 +30,11 @@
 
 #include <errno.h>
 #include <pthread.h>
-#include <shlwapi.h> /* for PathMatchSpecW() */
+#include <io.h>	/* for _get_osfhandle()  */
+
 #include "wimlib/win32_common.h"
 
 #include "wimlib/assert.h"
-#include "wimlib/file_io.h"
 #include "wimlib/glob.h"
 #include "wimlib/error.h"
 #include "wimlib/util.h"
@@ -57,7 +57,7 @@ err:
 	return -1;
 }
 
-/* Use the Win32 API to get the number of processors */
+/* Use the Win32 API to get the number of processors.  */
 unsigned
 win32_get_number_of_processors(void)
 {
@@ -66,6 +66,17 @@ win32_get_number_of_processors(void)
 	return sysinfo.dwNumberOfProcessors;
 }
 
+/* Use the Win32 API to get the amount of available memory.  */
+u64
+win32_get_avail_memory(void)
+{
+	MEMORYSTATUSEX status = {
+		.dwLength = sizeof(status),
+	};
+	GlobalMemoryStatusEx(&status);
+	return status.ullTotalPhys;
+}
+
 /* Replacement for POSIX-2008 realpath().  Warning: partial functionality only
  * (resolved_path must be NULL).   Also I highly doubt that GetFullPathName
  * really does the right thing under all circumstances. */
@@ -177,51 +188,10 @@ err_set_errno:
 	return -1;
 }
 
-/* Replacement for POSIX fnmatch() (partial functionality only) */
-int
-fnmatch(const wchar_t *pattern, const wchar_t *string, int flags)
-{
-	if (PathMatchSpecW(string, pattern))
-		return 0;
-	else
-		return FNM_NOMATCH;
-}
-
-/* truncate() replacement */
-int
-win32_truncate_replacement(const wchar_t *path, off_t size)
-{
-	DWORD err = NO_ERROR;
-	LARGE_INTEGER liOffset;
-
-	HANDLE h = win32_open_existing_file(path, GENERIC_WRITE);
-	if (h == INVALID_HANDLE_VALUE)
-		goto fail;
-
-	liOffset.QuadPart = size;
-	if (!SetFilePointerEx(h, liOffset, NULL, FILE_BEGIN))
-		goto fail_close_handle;
-
-	if (!SetEndOfFile(h))
-		goto fail_close_handle;
-	CloseHandle(h);
-	return 0;
-
-fail_close_handle:
-	err = GetLastError();
-	CloseHandle(h);
-fail:
-	if (err == NO_ERROR)
-		err = GetLastError();
-	set_errno_from_win32_error(err);
-	return -1;
-}
-
-
 /* This really could be replaced with _wcserror_s, but this doesn't seem to
  * actually be available in MSVCRT.DLL on Windows XP (perhaps it's statically
  * linked in by Visual Studio...?). */
-extern int
+int
 win32_strerror_r_replacement(int errnum, wchar_t *buf, size_t buflen)
 {
 	static pthread_mutex_t strerror_lock = PTHREAD_MUTEX_INITIALIZER;
@@ -299,61 +269,6 @@ pwrite(int fd, const void *buf, size_t count, off_t offset)
 	return do_pread_or_pwrite(fd, (void*)buf, count, offset, true);
 }
 
-/* Dumb Windows implementation of writev().  It writes the vectors one at a
- * time. */
-ssize_t writev(int fd, const struct iovec *iov, int iovcnt)
-{
-	ssize_t total_bytes_written = 0;
-
-	if (iovcnt <= 0) {
-		errno = EINVAL;
-		return -1;
-	}
-	for (int i = 0; i < iovcnt; i++) {
-		ssize_t bytes_written;
-
-		bytes_written = write(fd, iov[i].iov_base, iov[i].iov_len);
-		if (bytes_written >= 0)
-			total_bytes_written += bytes_written;
-		if (bytes_written != iov[i].iov_len) {
-			if (total_bytes_written == 0)
-				total_bytes_written = -1;
-			break;
-		}
-	}
-	return total_bytes_written;
-}
-
-int
-win32_get_file_and_vol_ids(const wchar_t *path, u64 *ino_ret, u64 *dev_ret)
-{
-	HANDLE h;
-	BY_HANDLE_FILE_INFORMATION file_info;
-	int ret;
-	DWORD err;
-
-	h = win32_open_existing_file(path, FILE_READ_ATTRIBUTES);
-	if (h == INVALID_HANDLE_VALUE) {
-		ret = WIMLIB_ERR_OPEN;
-		goto out;
-	}
-
-	if (!GetFileInformationByHandle(h, &file_info)) {
-		ret = WIMLIB_ERR_STAT;
-	} else {
-		*ino_ret = ((u64)file_info.nFileIndexHigh << 32) |
-			    (u64)file_info.nFileIndexLow;
-		*dev_ret = file_info.dwVolumeSerialNumber;
-		ret = 0;
-	}
-	err = GetLastError();
-	CloseHandle(h);
-	SetLastError(err);
-out:
-	set_errno_from_GetLastError();
-	return ret;
-}
-
 /* Replacement for glob() in Windows native builds that operates on wide
  * characters.  */
 int
@@ -366,6 +281,7 @@ win32_wglob(const wchar_t *pattern, int flags,
 	HANDLE hFind;
 	int ret;
 	size_t nspaces;
+	int errno_save;
 
 	const wchar_t *backslash, *end_slash;
 	size_t prefix_len;
@@ -395,9 +311,7 @@ win32_wglob(const wchar_t *pattern, int flags,
 			errno = 0;
 			return GLOB_NOMATCH;
 		} else {
-			/* The other possible error codes for FindFirstFile()
-			 * are undocumented. */
-			errno = EIO;
+			set_errno_from_win32_error(err);
 			return GLOB_ABORTED;
 		}
 	}
@@ -431,22 +345,21 @@ win32_wglob(const wchar_t *pattern, int flags,
 	} while (FindNextFileW(hFind, &dat));
 	err = GetLastError();
 	CloseHandle(hFind);
-	if (err == ERROR_NO_MORE_FILES) {
-		errno = 0;
-		return 0;
-	} else {
-		/* Other possible error codes for FindNextFile() are
-		 * undocumented */
-		errno = EIO;
+	if (err != ERROR_NO_MORE_FILES) {
+		set_errno_from_win32_error(err);
 		ret = GLOB_ABORTED;
 		goto fail_globfree;
 	}
+	return 0;
+
 oom:
 	CloseHandle(hFind);
 	errno = ENOMEM;
 	ret = GLOB_NOSPACE;
 fail_globfree:
+	errno_save = errno;
 	globfree(pglob);
+	errno = errno_save;
 	return ret;
 }