StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
7261839
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2011-08-31T18:43:53.193
FavoriteCount
0
LastActivityDate
2014-08-25T18:03:31.497
LastEditDate
2014-08-25T18:03:31.497
LastEditorUserId
283240
OwnerUserId
598824
ParentId
7261699
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
text
Body
For saving the data in a file, you can use file stream. For that you have to know about file streams. Hope these link will help. <a href="http://linux.die.net/man/3/fopen" rel="nofollow">http://linux.die.net/man/3/fopen</a> <a href="http://en.wikipedia.org/wiki/C_file_input/output" rel="nofollow">http://en.wikipedia.org/wiki/C_file_input/output</a> Here comes the example program which I particularly typed, compiled and attached it for your reference. <pre><code>#include<sys/types.h> #include<string.h> #include<sys/ipc.h> #include<sys/shm.h> #include<stdio.h> struct mystruct // you can make your own structure if you want to pass many data { int i; float f; char c; int arr[3]; }myObj = {1,1.1,'C',{100,1000,10000}}; main() { int shmid; char* addr1; key_t key; //file to key. Generates a unique key key = ftok("/home/muthu/Desktop/anyfile.txt",'T'); shmid = shmget(key,sizeof(struct mystruct),IPC_CREAT|SHM_R|SHM_W); printf("shmid = %d",shmid); addr1 = shmat(shmid,0,0); printf("\nIPC SHARED MEMORY"); //copying your structure at the shared location. memcpy(addr1,&myObj,sizeof(myObj)); printf("\nMESSAGE STORED"); } </code></pre> And for shared memory 2..... <pre><code>//<All necessary header files> //<same my struct declaration here> main() { int shmid; char* addr1; FILE* fp; key_t key; struct mystruct* myObj2; //Generate the same unique key. Must provide the same file here too. key = ftok("/home/muthu/Desktop/anyfile.txt",'T'); shmid = shmget(key,sizeof(struct mystruct),SHM_R|SHM_W); addr1 = shmat(shmid,0,0); myObj2 = (struct mystruct*)malloc(sizeof(struct mystruct)*1); if(shmid == -1) printf("\nShared memory error"); //Retrieve the stored information, form the shared location. memcpy(myObj2,addr1,sizeof(struct mystruct)); fp = fopen("/home/muthu/Desktop/MyFile.txt","w"); //open a file stream if(fp == NULL) printf("\nError on opening file stream.\n"); fprintf(fp,"\nIPC SHARED MEMORY"); fprintf(fp,"\nMESSAGE RECIEVED FORM THE SHARED MEMORY IS..\n"); fprintf(fp,"\ninteger: %d",myObj2->i); fprintf(fp,"\nfloat: %f",myObj2->f); fprintf(fp,"\nchar: %c",myObj2->c); //write to the file fprintf(fp,"\narr: %d %d %d",myObj2->arr[0],myObj2->arr[1],myObj2->arr[2]); fprintf(fp,"\nDATA RECIEVED."); fclose(fp); //close the file stream printf("\nMessage successfully stored!"); } </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POhow to pass data using shared memory and save the received data to file
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USHaskellElephant
UserOwnerUserId
1. USMuthu Ganapathy Nathan
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POhow to pass data using shared memory and save the received data to file
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. COThank you Eager. My doubt was cleared.
 singulars
 PostPostId
 PO
 UserUserId
 USmaddy

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.