StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POoutput to connection request is not atomic
primarykey
Id
10260120
data
AcceptedAnswerId
0
AnswerCount
2
ClosedDate
CommentCount
6
CommunityOwnedDate
CreationDate
2012-04-21T15:04:42.520
FavoriteCount
0
LastActivityDate
2012-04-22T16:13:26.940
LastEditDate
2012-04-21T15:25:37.947
LastEditorUserId
1233536
OwnerUserId
1233536
ParentId
0
PostTypeId
1
Score
0
ViewCount
101
LastEditorDisplayName
text
Body
I have created a socket and I am trying to accept the connection. Everything works fine. But, the output is confusing me about how the following code works. <pre><code> // this a server program #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <string.h> #include <sys/stat.h> #include <unistd.h> #include <sys/socket.h> #include <sys/types.h> #include <sys/un.h> #include <arpa/inet.h> #include <errno.h> #include <wait.h> #define LISTENQ (1024) int main(void) { int lstn_sock, conn_sock; struct sockaddr_in my_serv; short int pnum = 4080; // create listening socket if( (lstn_sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { printf("Error (socket): %s\n",strerror(errno)); exit(1); } // initialize socket address memset( &my_serv, 0, sizeof(my_serv) ); my_serv.sin_family = AF_INET; my_serv.sin_addr.s_addr = INADDR_ANY; my_serv.sin_port = htons(pnum); // associate address with socket. if( bind(lstn_sock, (struct sockaddr *) &my_serv, sizeof(my_serv)) < 0){ printf("Error (bind): %s\n",strerror(errno)); exit(1); } //printf("lstn_sock: %d\n",lstn_sock); // start listening to socket if( listen(lstn_sock, LISTENQ) < 0){ printf("Error (listen): %s\n",strerror(errno)); exit(1); } // make it a daemon while(1){ // retrieve connect request and connect if( (conn_sock = accept(lstn_sock, NULL, NULL)) < 0){ printf("Error (accept): %s\n",strerror(errno)); exit(1); } printf("The server says hi!\n"); // close connected socket if( close(conn_sock) < 0){ printf("Error (close): %s\n",strerror(errno)); exit(1); } } return 0; } </code></pre> @ubuntu:$ ./my_code & @ubuntu:$ telnet localhost 4080 Following are the 2 different output from the above code: Output1 Trying ::1... Trying 127.0.0.1.. Connected to localhost. Escape character is '^]'. The server says hi! Connection closed by foreign host. Output2 Trying ::1... Trying 127.0.0.1.. The server says hi! Connected to localhost. Escape character is '^]'. Connection closed by foreign host. Could someone please explain the reason for the movement of "The server says hi!" in the output.
Tags
<c><sockets><connect>
Title
output to connection request is not atomic
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USjdek
UserOwnerUserId
1. USjdek
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.