Show Bid Request
job control for (ush)
Bid Request Id: 56915
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Posted by: |
alzoub1 (47 ratings)
(Software buyer rating 9.95 )
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Non-action Ratio: |
Very Good - 5.77%
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Posted: |
Apr 8, 2003
11:36:08 PM EDT
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Bidding Closes: |
Apr 11, 2003
11:41:51 PM EDT
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Viewed (by coders): |
56 times
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Deadline: |
4/12/2003
TIME EXPIRED
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Description:
for the system I use -- SSH secure Shell Client .
in order to do job control ush must keep track of its children.use a list object similar to the one used in program 2.4 to keep a program history.the nodes in the list should have the following structure:
typedef enum jstatus
{ FOREGROUND,BACKGROUND,STOPPED,DONE,TERMINATED}
job_status_t;
typedef struct job_struct {
char *cmdstring;
pid_t pgid;
int job;
job_status_t jobstat;
struct job_struct *next_job;
}joblist_t;
static joblist_t *job_head = NULL;
static joblist_t *job_tail = NULL;
place the list structure in a seprate file along with the following function to manibulate the job list:
1- the add_list function adds the specified job to alist.the prototype for add_list is
int add_list(pid_t pgid, char *cmd, job_status_t status);
the pgid is the process group ID,and cmd is the command string for the job.the status value can be either FOREGROUND or BACKGROUND .the add_list function returns the job number if successful or -1 on failure.
2- the delete_ list function removes the node corresponding to the specified job from a list.The prototype for delete_list is
int delete_list(int job);
the delete_list returns the job number if the node is successfully deleted or -1 on failure.be sure
to free all space associated with the deleted node.
3-the show _jobs function outputs a list of jobs and each one's status .use a format similar to
[job] status pgid cmd
4-the set_status function sets the status value of the node of the corresponding job to either
FOREGROUND or BACKGROUND .its prototype is
int set_status(int job,job_status_t status);
the set_status function return 0 to success and -1 to failure.
see attachment--------------------------------
Deliverables:
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
3) Complete ownership and distribution copyrights to all work purchased.
Platform:
nt,98,melin,xp
Must be 100% finished and received by buyer on:
Apr 12, 2003 EDT
Deadline legal notes: All times are expressed in the time zone of the site EDT (UT - 5). If the buyer omitted a time, then the deadline is 11:59:59 PM EDT on the indicated date.
Additional Files:
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Bidding/Comments:
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Bid Amount
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Date |
Coder Rating |
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This bid was accepted by the buyer!
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$20 (USD)
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Apr 9, 2003
2:31:11 AM EDT
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9.96
(Excellent)
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Am I right in assuming this project to be limited to list manipulation functions and driver program and independent of ush?
Regards
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