debug windows build

include/prism/util/pm_string.h

@@ -18,6 +18,8 @@
 // The following headers are necessary to read files using demand paging.
 #ifdef _WIN32
 #include <windows.h>
+#include <ruby.h>
+#include <ruby/win32.h>
 #else
 #include <fcntl.h>
 #include <sys/mman.h>

src/util/pm_string.c

@@ -65,12 +65,13 @@ pm_string_mapped_init(pm_string_t *string, const char *filepath) {
     HANDLE file = CreateFile(filepath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
 
     if (file == INVALID_HANDLE_VALUE) {
-        return errno;
+        return rb_w32_map_errno(GetLastError());
     }
 
     // Get the file size.
     DWORD file_size = GetFileSize(file, NULL);
     if (file_size == INVALID_FILE_SIZE) {
+        fprintf(stderr, "invalid file size\n");
         CloseHandle(file);
         return errno;
     }
@@ -79,6 +80,7 @@ pm_string_mapped_init(pm_string_t *string, const char *filepath) {
     // the source to a constant empty string and return.
     if (file_size == 0) {
         CloseHandle(file);
+        fprintf(stderr, "close handle\n");
         const uint8_t source[] = "";
         *string = (pm_string_t) { .type = PM_STRING_CONSTANT, .source = source, .length = 0 };
         return 0;
@@ -88,6 +90,7 @@ pm_string_mapped_init(pm_string_t *string, const char *filepath) {
     HANDLE mapping = CreateFileMapping(file, NULL, PAGE_READONLY, 0, 0, NULL);
     if (mapping == NULL) {
         CloseHandle(file);
+        fprintf(stderr, "close handle, mapping is null\n");
         return errno;
     }
 
@@ -97,6 +100,7 @@ pm_string_mapped_init(pm_string_t *string, const char *filepath) {
     CloseHandle(file);
 
     if (source == NULL) {
+        fprintf(stderr, "source was null\n");
         return errno;
     }