57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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#ifndef __COMMUNICATION_H__
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#define __COMMUNICATION_H__
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h> // unlink
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#include <sys/types.h> // mkfifo
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#include <sys/stat.h> // mkfifo
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#include <fcntl.h> // open
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#define TMPDIR "/tmp/"
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#define COMMUNICATION_VERSION 1
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// TODO to check the right length for a path
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#define PATH_MAX BUFSIZ
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struct process {
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pid_t pid;
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unsigned int version;
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unsigned int index;
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int in, out;
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};
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// TODO create the service process structure
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int service_path (char *buf, const char *sname);
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void gen_process_structure (struct process *p
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, pid_t pid, unsigned int index, unsigned int version);
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/*
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* returns
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* 0 : ok
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* 1 : no service name
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* 2 : service name too long
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* 3 : unable to create fifo
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*/
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int service_create (const char *sname);
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int service_close (const char *sname);
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void service_get_new_processes (struct process **, int *nproc, int sfifo);
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int process_create (struct process *, int index); // called by the application
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int process_destroy (struct process *); // called by the application
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int process_open (struct process *); // called by the service & application
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int process_close (struct process *); // called by the service & application
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int process_read (struct process *, void * buf, size_t *);
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int process_write (struct process *, void * buf, size_t);
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#endif
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