63 lines
1.6 KiB
C
63 lines
1.6 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 <cbor.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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#define TMPDIR "/tmp/ipc/"
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#define PATH_MAX BUFSIZ
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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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int service_fd;
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};
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// SERVICE
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// srv->version and srv->index must be already set
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// init unix socket + fill srv->spath
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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 srv_close (struct service *srv);
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int srv_read (const struct service *srv, char ** buf, size_t *msize);
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int srv_write (const struct service *, const char * buf, size_t);
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// APPLICATION
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// Initialize connection with unix socket
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// send the connection string to $TMP/<service>
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// fill srv->spath && srv->service_fd
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int app_connection (struct service *, const char *, const char *, size_t);
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int app_close (struct service *);
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int app_read (struct service *srv, char ** buf, size_t *msize);
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int app_write (struct service *, char * buf, size_t msize);
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#endif
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