Yes I have an xs_init (that I know works, because I can load XS modules). Here is my relevant embedding code:
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
int argc = 1;
char * argv[] = { "myPerlInterp", "-w" };
PERL_SYS_INIT3(&argc, (char ***)&argv, (char ***)NULL);
});
...
[(NSMutableDictionary *)envDict setObject:@"TTY=/dev/ttys001 L
+ineInfo=/dev/ttys003 ReadLine=1" forKey:@"PERLDB_OPTS"];
my_perl_env = calloc(sizeof(char *), [envDict count] + 1);
int i=0;
for (NSString * var in [envDict allKeys])
{
//TODO: unsure if this is going to propogate any non-ascii
+ paths correctly
NSString * entry = [NSString stringWithFormat:@"%@=%@", va
+r, [envDict objectForKey:var]];
const char * val = [entry UTF8String];
char * val_copy = calloc(sizeof(char), strlen(val) + 1);
strncpy(val_copy, val, strlen(val));
my_perl_env[i++] = val_copy;
}
my_perl_queue = dispatch_queue_create([label cStringUsingEncod
+ing:NSASCIIStringEncoding], DISPATCH_QUEUE_SERIAL);
dispatch_sync(my_perl_queue, ^{
//char * embedding[] = { "", "-w", "-e", "0" };
char * embedding[] = { "", "-w", "-d", "-e", "0" };
int embedding_count = sizeof(embedding) / sizeof(char *);
my_perl = perl_alloc();
PL_perl_destruct_level = 1;
perl_construct(my_perl);
perl_parse(my_perl, xs_init, embedding_count, embedding, m
+y_perl_env);
// not sure why the perl_parse env isn't used to setup @IN
+C - even giving it to PERL_SYS_INIT3 doesn't work
eval_pv("use Env qw(@PERL5LIB); push @INC, @PERL5LIB;", TR
+UE);
PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
});
}
If you're not familiar with blocks and grand central dispatch, just imagine the code in the
^{ ... } bits are running on a background thread. The
envDict is an NSDictionary containing how I want the environment to be setup.
As I said this generally works, and in the above incantation, /dev/ttys01 gets this output:
Marks-MacBook-Air:~ aufflick$ sleep 1000000
Loading DB routines from perl5db.pl version 1.32
Editor support available.
Enter h or `h h' for help, or `man perldebug' for more help.
And then the code continues to run with no interactive prompt (just typing stuff leaves it in the buffer - stdin never seems to be read). The same happens just running at the console without the PERL5DB_OPTS or using the RemotePort/nc method.
I'm trying to figure out how to set a breakpoint in advance to see if that manages to enter the debugger. perldebguts talks about %{"::_<current_file"} but I can't seem to figure it out.
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