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https://github.com/kovidgoyal/calibre.git
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055f5b0979
Ideally someone needs to go through all the code and check that nothing breaks because of this macro, but, I dont have that kind of time
115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
/*
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* Copyright 2009 Kovid Goyal
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*/
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#define UNICODE
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#define PY_SSIZE_T_CLEAN
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#define _WIN32_WINNT 0x0502
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#define WINDOWS_LEAN_AND_MEAN
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#include <windows.h>
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#include <Python.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <Shellapi.h>
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#include <delayimp.h>
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#include <io.h>
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#include <fcntl.h>
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#include "../run-python.h"
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static char python_dll[] = PYDLL;
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static wchar_t qt_prefix_dir[MAX_PATH] = {0};
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static void
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get_app_dirw(void) {
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wchar_t buf[MAX_PATH] = {0};
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wchar_t drive[4] = L"\0\0\0";
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DWORD sz; errno_t err;
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sz = GetModuleFileNameW(NULL, interpreter_data.exe_path, MAX_PATH);
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if (sz >= MAX_PATH-1) ExitProcess(_show_error(L"Installation directory path too long", L"", 1));
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err = _wsplitpath_s(interpreter_data.exe_path, drive, 4, buf, MAX_PATH, NULL, 0, NULL, 0);
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if (err != 0) ExitProcess(show_last_error_crt(L"Failed to find application directory"));
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_snwprintf_s(interpreter_data.app_dir, MAX_PATH, _TRUNCATE, L"%ls%ls", drive, buf);
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_snwprintf_s(interpreter_data.resources_path, MAX_PATH, _TRUNCATE, L"%ls%lsapp\\resources", drive, buf);
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_snwprintf_s(interpreter_data.extensions_path, MAX_PATH, _TRUNCATE, L"%ls%lsapp\\bin", drive, buf);
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_snwprintf_s(interpreter_data.executables_path, MAX_PATH, _TRUNCATE, L"%ls%lsapp\\bin", drive, buf);
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}
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static void
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get_install_locations(void) {
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get_app_dirw();
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_snwprintf_s(qt_prefix_dir, MAX_PATH-1, _TRUNCATE, L"%ls\\app", interpreter_data.app_dir);
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_wputenv_s(L"CALIBRE_QT_PREFIX", qt_prefix_dir);
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}
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static void
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load_python_dll() {
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get_install_locations();
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bypy_setup_python(python_dll);
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}
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const static wchar_t out_of_memory[] = L"Out of memory";
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static void
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redirect_out_stream(FILE *stream) {
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FILE *f = NULL;
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errno_t err;
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err = _wfreopen_s(&f, L"NUL", L"wt", stream);
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if (err != 0) {
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ExitProcess(show_last_error_crt(L"Failed to redirect stdout/stderr to NUL. This indicates a corrupted Windows install.\r\n You should contact Microsoft for assistance and/or follow the steps described here:\r\n http://bytes.com/topic/net/answers/264804-compile-error-null-device-missing"));
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}
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}
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static void
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null_invalid_parameter_handler(
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const wchar_t * expression,
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const wchar_t * function,
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const wchar_t * file,
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unsigned int line,
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uintptr_t pReserved
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) {
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// The python runtime expects various system calls with invalid parameters
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// to return errors instead of aborting the program. So get the windows CRT
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// to do that.
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}
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__declspec(dllexport) int __cdecl
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simple_print(const wchar_t *msg) {
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int n = wprintf(L"%ls", msg); fflush(stdout);
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return n;
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}
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__declspec(dllexport) int __cdecl
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execute_python_entrypoint(const wchar_t *basename, const wchar_t *module, const wchar_t *function, int is_gui_app) {
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int ret = 0;
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// Prevent Windows' idiotic error dialog popups when various win32 api functions fail
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SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOALIGNMENTFAULTEXCEPT | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX);
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// Disable the invalid parameter handler
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_set_invalid_parameter_handler(null_invalid_parameter_handler);
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detect_tty();
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if (is_gui_app) {
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// Redirect stdout and stderr to NUL so that python does not fail writing to them
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if (!stdout_is_a_tty) redirect_out_stream(stdout);
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if (!stderr_is_a_tty) redirect_out_stream(stderr);
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}
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GUI_APP = is_gui_app;
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interpreter_data.argv = CommandLineToArgvW(GetCommandLineW(), &interpreter_data.argc);
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if (interpreter_data.argv == NULL) ExitProcess(show_last_error(L"Failed to get command line"));
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interpreter_data.basename = basename; interpreter_data.module = module; interpreter_data.function = function;
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load_python_dll();
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pre_initialize_interpreter(is_gui_app);
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run_interpreter();
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/* printf("111111111111 returning: %d\r\n", ret); */
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return ret;
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}
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