78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
#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 "process.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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#include <errno.h> // error numbers
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#define COMMUNICATION_VERSION 1
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#define ER_FILE_OPEN 1
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#define ER_FILE_CLOSE 2
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#define ER_FILE_READ 3
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#define ER_FILE_WRITE 4
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#define ER_FILE_WRITE_PARAMS 5
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#define ER_MEM_ALLOC 100
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#define ER_PARAMS 101
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struct service {
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unsigned int version;
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unsigned int index;
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char spath[PATH_MAX];
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FILE *spipe;
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};
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int srv_init (int argc, char **argv, char **env
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, struct service *srv, const char *sname
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, int (*cb)(int argc, char **argv, char **env
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, struct service *srv, const char *sname));
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int srv_get_listen_raw (const struct service *srv, char **buf, size_t *msize);
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int srv_get_new_process (const struct service *srv, struct process *proc);
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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 srv_create (struct service *srv);
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int srv_close (struct service *srv);
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int srv_read_cb (struct process *p, char ** buf, size_t * msize
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, int (*cb)(FILE *f, char ** buf, size_t * msize));
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int srv_read (struct process *, char ** buf, size_t *);
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int srv_write (struct process *, char * buf, size_t);
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// APPLICATION
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// send the connection string to $TMP/<service>
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int app_srv_connection (struct service *, const char *, size_t);
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int app_create (struct process *, pid_t pid, int index, int version);
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int app_destroy (struct process *);
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int app_read_cb (struct process *p, char ** buf, size_t * msize
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, int (*cb)(FILE *f, char ** buf, size_t * msize));
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int app_read (struct process *, char ** buf, size_t *);
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int app_write (struct process *, char * buf, size_t);
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// wrappers
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int file_open (FILE **f, const char *path, const char *mode);
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int file_close (FILE *f);
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int file_read (FILE *f, char **buf, size_t *msize);
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int file_write (FILE *f, const char *buf, size_t msize);
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#endif
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