static dispatch_data_t
_dispatch_data_subrange_map(dispatch_data_t data, const void **ptr,
size_t offset, size_t size)
{
dispatch_data_t subrange, map = NULL;
subrange = dispatch_data_create_subrange(data, offset, size);
if (dispatch_data_get_size(subrange) == size) {
map = dispatch_data_create_map(subrange, ptr, NULL);
}
dispatch_release(subrange);
return map;
}
static void
test_concat(void)
{
dispatch_group_enter(g);
dispatch_async(dispatch_get_main_queue(), ^{
char* buffer1 = "This is buffer1 ";
size_t size1 = 17;
char* buffer2 = "This is buffer2 ";
size_t size2 = 17;
__block bool buffer2_destroyed = false;
dispatch_data_t data1 = dispatch_data_create(buffer1, size1, NULL, NULL);
dispatch_data_t data2 = dispatch_data_create(buffer2, size2,
dispatch_get_main_queue(), ^{
buffer2_destroyed = true;
});
dispatch_data_t concat = dispatch_data_create_concat(data1, data2);
dispatch_release(data1);
dispatch_release(data2);
test_long("Data size of concatenated dispatch data",
dispatch_data_get_size(concat), 34);
const void* contig;
size_t contig_size;
dispatch_data_t contig_data =
dispatch_data_create_map(concat, &contig, &contig_size);
dispatch_release(concat);
dispatch_release(contig_data);
test_long("Contiguous memory size", contig_size, 34);
dispatch_async(dispatch_get_main_queue(), ^{
test_long("buffer2 destroyed", buffer2_destroyed, true);
dispatch_group_leave(g);
});
int
main(int argc, char** argv)
{
struct hostent *he;
int sockfd, clientfd;
struct sockaddr_in addr1, addr2, server;
socklen_t addr2len;
socklen_t addr1len;
pid_t clientid;
const char *path = "/usr/share/dict/words";
int read_fd, fd;
if (argc == 2) {
// Client
dispatch_test_start(NULL);
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
test_errno("Client-socket()", errno, 0);
test_stop();
}
if ((he = gethostbyname("localhost")) == NULL) {
fprintf(stderr, "Client-gethostbyname() failed\n");
test_stop();
}
memcpy(&server.sin_addr, he->h_addr_list[0], he->h_length);
server.sin_family = AF_INET;
server.sin_port = atoi(argv[1]);
fprintf(stderr, "Client-connecting on port ... %d\n", server.sin_port);
if (connect(sockfd, (struct sockaddr *)&server, sizeof(server))) {
test_errno("client-connect()", errno, 0);
test_stop();
}
// Read from the socket and compare the contents are what we expect
fd = open(path, O_RDONLY);
if (fd == -1) {
test_errno("client-open", errno, 0);
test_stop();
}
#ifdef F_NOCACHE
if (fcntl(fd, F_NOCACHE, 1)) {
test_errno("client-fcntl F_NOCACHE", errno, 0);
test_stop();
}
#else
// investigate what the impact of lack of file cache disabling has
// for this test
#endif
struct stat sb;
if (fstat(fd, &sb)) {
test_errno("client-fstat", errno, 0);
test_stop();
}
size_t size = sb.st_size;
__block dispatch_data_t g_d1 = dispatch_data_empty;
__block dispatch_data_t g_d2 = dispatch_data_empty;
__block int g_error = 0;
dispatch_group_t g = dispatch_group_create();
dispatch_group_enter(g);
dispatch_read(fd, size, dispatch_get_global_queue(0, 0),
^(dispatch_data_t d1, int error) {
test_errno("Client-dict-read error", error, 0);
test_long("Client-dict-dispatch data size",
dispatch_data_get_size(d1), size);
dispatch_retain(d1);
g_d1 = d1;
dispatch_group_leave(g);
});
