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This commit is contained in:
vylsaz 2024-02-04 02:45:25 +00:00
parent 42e4956fb9
commit 893ef857d7
2 changed files with 8 additions and 4 deletions

View File

@ -318,6 +318,8 @@ B mmap_file(B path) {
thrM("failed to mmap file");
}
#else
// see https://learn.microsoft.com/en-us/windows/win32/memory/creating-a-view-within-a-file
HANDLE hFile = CreateFileA(
p, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

View File

@ -1,11 +1,13 @@
#include <windows.h>
// memory is allocated and should be freed with LocalFree()
// for now this memory is leaked
static char* winErrorEx(DWORD dwError) {
char* buffer = NULL;
DWORD dwFlags = FORMAT_MESSAGE_MAX_WIDTH_MASK
| FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS;
DWORD dwFlags = FORMAT_MESSAGE_MAX_WIDTH_MASK // no newlines
| FORMAT_MESSAGE_ALLOCATE_BUFFER // allocate memory
| FORMAT_MESSAGE_FROM_SYSTEM // get error message
| FORMAT_MESSAGE_IGNORE_INSERTS; // no argument (NULL)
DWORD dwResult = FormatMessageA(dwFlags, NULL, dwError, 0, (LPSTR)&buffer, 0, NULL);
if (dwResult==0 || buffer==NULL) {
fatal("Failed to get error message from FormatMessageA()");