зеркало из https://github.com/github/ruby.git
97 строки
2.8 KiB
C
97 строки
2.8 KiB
C
#include "win32ole.h"
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static VALUE ole_hresult2msg(HRESULT hr);
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static VALUE
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ole_hresult2msg(HRESULT hr)
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{
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VALUE msg = Qnil;
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char *p_msg = NULL;
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char *term = NULL;
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DWORD dwCount;
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char strhr[100];
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sprintf(strhr, " HRESULT error code:0x%08x\n ", (unsigned)hr);
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msg = rb_str_new2(strhr);
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dwCount = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, hr,
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MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
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(LPTSTR)&p_msg, 0, NULL);
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if (dwCount == 0) {
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dwCount = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, hr, cWIN32OLE_lcid,
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(LPTSTR)&p_msg, 0, NULL);
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}
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if (dwCount > 0) {
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term = p_msg + strlen(p_msg);
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while (p_msg < term) {
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term--;
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if (*term == '\r' || *term == '\n')
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*term = '\0';
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else break;
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}
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if (p_msg[0] != '\0') {
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rb_str_cat2(msg, p_msg);
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}
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}
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LocalFree(p_msg);
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return msg;
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}
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void
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ole_raise(HRESULT hr, VALUE ecs, const char *fmt, ...)
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{
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va_list args;
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VALUE msg;
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VALUE err_msg;
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va_init_list(args, fmt);
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msg = rb_vsprintf(fmt, args);
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va_end(args);
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err_msg = ole_hresult2msg(hr);
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if(err_msg != Qnil) {
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rb_str_cat2(msg, "\n");
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rb_str_append(msg, err_msg);
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}
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rb_exc_raise(rb_exc_new_str(ecs, msg));
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}
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VALUE eWIN32OLERuntimeError;
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VALUE eWIN32OLEQueryInterfaceError;
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void
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Init_win32ole_error(void)
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{
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/*
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* Document-class: WIN32OLE::RuntimeError
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*
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* Raised when OLE processing failed.
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*
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* EX:
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*
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* obj = WIN32OLE.new("NonExistProgID")
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*
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* raises the exception:
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*
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* WIN32OLE::RuntimeError: unknown OLE server: `NonExistProgID'
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* HRESULT error code:0x800401f3
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* Invalid class string
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*
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*/
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eWIN32OLERuntimeError = rb_define_class_under(cWIN32OLE, "RuntimeError", rb_eRuntimeError);
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/* Alias of WIN32OLE::RuntimeError, for the backward compatibility */
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rb_define_const(rb_cObject, "WIN32OLERuntimeError", eWIN32OLERuntimeError);
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/*
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* Document-class: WIN32OLE::QueryInterfaceError
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*
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* Raised when OLE query failed.
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*/
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eWIN32OLEQueryInterfaceError = rb_define_class_under(cWIN32OLE, "QueryInterfaceError", eWIN32OLERuntimeError);
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/* Alias of WIN32OLE::QueryInterfaceError, for the backward compatibility */
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rb_define_const(rb_cObject, "WIN32OLEQueryInterfaceError", eWIN32OLEQueryInterfaceError);
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}
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