reorganization, cross compiler

5 files changed, 140 insertions, 0 deletions

diff --git a/euler/include/cstdio b/euler/include/cstdio
new file mode 100644
index 0000000..27073db
--- /dev/null
+++ b/euler/include/cstdio
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <euler/stream.hpp>
+#include <stddef.h>
+
+namespace std {
+
+  typedef euler::stream FILE;
+
+  FILE *fopen(const char *filename, const char *mode);
+  int fclose(FILE *stream);
+
+  size_t fread(void *buffer, size_t size, size_t count, FILE *stream);
+
+}
diff --git a/euler/include/cstring b/euler/include/cstring
new file mode 100644
index 0000000..45bc94e
--- /dev/null
+++ b/euler/include/cstring
@@ -0,0 +1,8 @@
+#pragma once
+
+#include <stddef.h>
+
+namespace std {
+  size_t strlen(const char *str);
+  void *memcpy(void *dest, const void *src, size_t count);
+}
diff --git a/euler/include/euler/heap.hpp b/euler/include/euler/heap.hpp
new file mode 100644
index 0000000..e2a4852
--- /dev/null
+++ b/euler/include/euler/heap.hpp
@@ -0,0 +1,8 @@
+#pragma once
+
+#include <stdint.h>
+
+namespace euler {
+  void *alloc(uint64_t bytes);
+  void dealloc(void *start, uint64_t bytes);
+}
diff --git a/euler/include/euler/stream.hpp b/euler/include/euler/stream.hpp
new file mode 100644
index 0000000..a364ec4
--- /dev/null
+++ b/euler/include/euler/stream.hpp
@@ -0,0 +1,48 @@
+#pragma once
+
+#include <euler/syscall.hpp>
+
+namespace euler {
+
+  class stream {
+
+  public:
+    virtual ~stream();
+    virtual bool try_read(void *into, uint64_t bytes) = 0;
+    virtual bool try_seek(__euler_seek_from from, int64_t offset) = 0;
+
+  };
+
+  class file_stream : public stream {
+
+  private:
+
+    __euler_stream_handle handle;
+    bool is_readable;
+    bool is_writable;
+    uint64_t length;
+    uint64_t offset;
+
+    uint8_t *buffer;
+    uint64_t buffer_offset;
+    uint64_t buffer_size;
+    bool buffer_dirty;
+
+    void write_buffer();
+
+  public:
+
+    bool good;
+
+    file_stream(
+      __euler_stream_handle handle, bool is_readable, bool is_writable,
+      bool clear, bool seek_to_end);
+
+    ~file_stream();
+
+    bool try_read(void *into, uint64_t bytes) override;
+    bool try_seek(__euler_seek_from from, int64_t offset) override;
+
+  };
+
+}
diff --git a/euler/include/euler/syscall.hpp b/euler/include/euler/syscall.hpp
new file mode 100644
index 0000000..9255642
--- /dev/null
+++ b/euler/include/euler/syscall.hpp
@@ -0,0 +1,61 @@
+#pragma once
+
+#include <stdint.h>
+
+enum __euler_stream_result : uint64_t {
+  __EULER_SR_SUCCESS = 0,
+  __EULER_SR_BAD_HANDLE,
+  __EULER_SR_IO_ERROR,
+  __EULER_SR_OUT_OF_BOUNDS,
+  __EULER_SR_DOES_NOT_EXIST,
+  __EULER_SR_NOT_A_REGULAR_FILE,
+  __EULER_SR_NOT_AN_EXECUTABLE,
+  __EULER_SR_NOT_WRITABLE,
+  __EULER_SR_NOT_SEEKABLE,
+  __EULER_SR_SOCKET_ID_ALREADY_IN_USE,
+  __EULER_SR_SOCKET_ID_NOT_IN_USE,
+  __EULER_SR_SOCKET_LISTENER_CLOSED,
+  __EULER_SR_OTHER_END_CLOSED,
+  __EULER_SR_ALREADY_EXISTS,
+  __EULER_SR_NOT_SIZED
+};
+
+enum __euler_seek_from : uint8_t {
+  __EULER_SF_BEGINNING = 0,
+  __EULER_SF_END,
+  __EULER_SF_CURRENT_POSITION
+};
+
+typedef uint64_t __euler_stream_handle;
+
+extern "C" __euler_stream_result __euler_open_file(
+  const char *path, uint64_t path_len, __euler_stream_handle &handle_out,
+  bool allow_creation, bool only_allow_creation);
+
+extern "C" [[noreturn]] void __euler_end_this_thread(int32_t exit_code);
+
+extern "C" __euler_stream_result __euler_seek_stream(
+  __euler_stream_handle handle, __euler_seek_from from, int64_t offset);
+
+extern "C" __euler_stream_result __euler_set_stream_length(
+  __euler_stream_handle handle, uint64_t new_length);
+
+extern "C" void __euler_close_stream(__euler_stream_handle handle);
+
+extern "C" __euler_stream_result __euler_get_stream_length(
+  __euler_stream_handle handle, uint64_t &length_out);
+
+extern "C" void *__euler_get_new_pages(uint64_t count);
+
+extern "C" __euler_stream_result __euler_write_to_stream(
+  __euler_stream_handle handle, uint64_t count, const void *buffer);
+
+extern "C" __euler_stream_result __euler_read_from_stream(
+  __euler_stream_handle handle, uint64_t count, void *buffer);
+
+extern "C" uint32_t *__euler_get_framebuffer(
+  uint32_t &width_out, uint32_t &height_out, uint32_t &pitch_out);
+
+extern "C" uint32_t __euler_encode_color(uint8_t r, uint8_t g, uint8_t b);
+
+extern "C" uint32_t __euler_read_key_packet();