int gtk_ismapped(GtkWidget *window)
{
if(window)
{
//取得窗口相关的X11 Display
//Display *display;
Window xWindow = GDK_WINDOW_XID(window->window);
if ( g_display == NULL )
{
printf("Cannot connect to X server \n");
return -1;
}
else
{
//printf("connect to Xserver on XWindow %d\r\n", xWindow);
return ismapped(g_display , xWindow);
}
}
printf("%s : widget null\r\n", __FUNCTION__);
return -1;
}
void *rvm_map(rvm_t rvm, const char *segname, int size_to_create) {
if(debug)
fprintf(stderr, "%s called.\n", __func__);
int fd;
void * segbuf;
struct stat segstat;
char buf = 0;
rvm_truncate_log(rvm);
if(ismapped(rvm, segname))
return 0x0;
/* I presume here that size_to_create and the existing file size are
* both lower bounds on the final size of the segment. */
system(("touch "+rvm->pathname+"/"+segname+".rvmseg").c_str());
fd = open((rvm->pathname+"/"+segname+".rvmseg").c_str(),
O_RDWR);
if(-1 == fd)
return 0x0;
lseek(fd, size_to_create-1, SEEK_SET);
read(fd, &buf, 1);
lseek(fd, size_to_create-1, SEEK_SET);
if(-1 == write(fd, &buf, 1)) {
close(fd);
return 0x0;
}
/* The above ensures that the file is AT LEAST as large as
* size_to_create. */
if(-1 == fstat(fd, &segstat)) {
close(fd);
return 0x0;
}
if(segstat.st_size > size_to_create)
size_to_create = segstat.st_size;
lseek(fd, 0, SEEK_SET);
segbuf = malloc(size_to_create);
if(0x0 == segbuf) {
close(fd);
return 0x0;
}
if(-1 == read(fd, segbuf, size_to_create)) {
close(fd);
free(segbuf);
return 0x0;
}
lseek(fd, 0, SEEK_SET);
segment_t tempseg;
tempseg.segname = std::string(segname);
tempseg.size = size_to_create;
tempseg.segbase = 0x0;
tempseg.busy = 0;
rvm->mapped_segs.push_back(tempseg);
rvm->mapped_segs.back().segbase = segbuf;
return segbuf;
}
bool mappedcmp(const struct sockaddr_in *sa1,const struct sockaddr_in6 *sa2)
{
return ismapped(sa2) && !memcmp(sa2->sin6_addr.s6_addr+12,&sa1->sin_addr.s_addr,4);
}
