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Full Discussion: Problem due to Fork Error
Top Forums UNIX for Advanced & Expert Users Problem due to Fork Error Post 302214677 by ramen_noodle on Monday 14th of July 2008 03:49:44 PM
Old 07-14-2008
It's simple enough.
Code:
#define MAXC 25
pid_t do_child(char *cmd, char *args[]);

int main(void) {
int v = 0, x =0;
pid_t p_arrays[MAXC];

            while (v  <  MAXC) {p_arrays[v] = do_child(...); v++);
            while (x < (MAXC - 1)) {
                   if (waitpid(0,NULL,WNOHANG)) > 0) {x++;}
                   sleep(1);
             }
}
/*do_child with fork + execv is simple as is parsing and passing args to do_child in main*/

 

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proto(4)						     Kernel Interfaces Manual							  proto(4)

NAME
proto - prototype job file for at SYNOPSIS
DESCRIPTION
When a job is submitted to or the job is constructed as a POSIX shell script (see at(1)). The job file is created in as follows: o creates a header describing the job as an job or a job. jobs submitted to all queues other than queue are listed as jobs. The header is: for an job, or for a job. o A set of POSIX shell commands is added to make the environment (see environ(5)) for the job the same as the current environment. o then copies text from the prototype file to the job file, except for special variables that are replaced by other text: Replaced by the current working directory. Replaced by the current file size limit (see ulimit(2)). Replaced by the current umask (see umask(2)). Replaced by the time at which the job should be run, expressed as seconds since January 1, 1970, 00:00 Coordinated Universal Time, preceded by a colon. Replaced by text read by from the standard input (that is, the commands provided to to be run in the job). o When a job is submitted to queue queue, uses the file as the prototype file if it exists. Otherwise, it uses the file EXAMPLES
The following file creates commands to change the current directory, file size limit, and umask in the job to their respective values as they existed when was originally run. These commands are inserted before the commands in the job: SEE ALSO
at(1), queuedefs(4). STANDARDS CONFORMANCE
proto(4)
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