1 files changed, 75 insertions, 0 deletions
diff --git a/prb_windows.h b/prb_windows.h
new file mode 100644
index 0000000..aec7e9b
--- /dev/null
+++ b/prb_windows.h
@@ -0,0 +1,75 @@
+void *sys_alloc(u64 length)
+{
+	assert(length);
+	void *result = VirtualAlloc(0, length, MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE);
+	return result;
+}
+
+void sys_free(void *memory, u64 length)
+{
+	assert(memory);
+	assert(length);
+	assert(VirtualFree(memory, 0, MEM_RELEASE));
+}
+
+u64 sys_read_file(arena_t *arena, char **buffer, const char *filename)
+{
+	*buffer = 0;
+
+	HANDLE file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
+		0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
+	if (file == INVALID_HANDLE_VALUE) {
+		printf("error: failed to open file \"%s\"\n", filename);
+		return 0;
+	}
+
+	LARGE_INTEGER lisize;
+	if (!GetFileSizeEx(file, &lisize)) {
+		printf("error: failed to get size of the file \"%s\"", filename);
+		CloseHandle(file);
+		return 0;
+	}
+
+	u64 size = lisize.QuadPart;
+	if (!size) {
+		printf("error: file \"%s\" is empty", filename);
+		CloseHandle(file);
+		return 0;
+	}
+
+	*buffer = push_arena(arena, size + 1);
+
+	DWORD bytes_read;
+	if (!ReadFile(file, *buffer, size, &bytes_read, 0)) {
+		CloseHandle(file);
+		pop_arena(arena, size);
+		printf("error: failed to read file \"%s\", bytes read: %lu\n", filename, bytes_read);
+		return 0;
+	}
+	CloseHandle(file);
+
+	*(*buffer + size) = 0;
+
+	return size + 1;
+}
+
+char *sys_getbindir(arena_t *arena)
+{
+	char path[MAX_PATH];
+	u32 len = GetModuleFileName(0, path, MAX_PATH);
+	if (!len) {
+		printf("error: failed to get file path\n");
+		return 0;
+	}
+
+	char *dir = strrchr(path, '\\');
+	assert(dir);
+	assert(dir > path);
+
+	len = dir - path;
+	dir = push_arena(arena, len + 1);
+	prb_memmove(dir, path, len);
+	dir[len] = 0;
+
+	return dir;
+}