95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
#include "communication.h"
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#include "usocket.h"
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#include <assert.h>
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#include <stdio.h>
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#include <errno.h>
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#define handle_error(msg) \
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do { perror(msg); exit(EXIT_FAILURE); } while (0)
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void service_path (char *path, const char *sname, int index, int version)
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{
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memset (path, 0, PATH_MAX);
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snprintf (path, PATH_MAX, "%s/%s-%d-%d", TMPDIR, sname, index, version);
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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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{
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if (srv == NULL)
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return ER_PARAMS;
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// TODO
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// use the argc, argv and env parameters
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// it will be useful to change some parameters transparently
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// ex: to get resources from other machines, choosing the
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// remote with environment variables
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argc = argc;
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argv = argv;
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env = env;
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// gets the service path
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service_path (srv->spath, sname, srv->index, srv->version);
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usock_init (&srv->service_fd, srv->spath);
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return 0;
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}
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int srv_close (struct service *srv)
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{
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usock_close (srv->service_fd);
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return usock_remove (srv->spath);
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}
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int srv_read (const struct service *srv, char ** buf, size_t *msize)
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{
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return usock_recv (srv->service_fd, buf, msize);
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}
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int srv_write (const struct service *srv, const char * buf, size_t msize)
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{
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return usock_send (srv->service_fd, buf, msize);
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}
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int app_connection (struct service *srv, const char *sname
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, const char *connectionstr, size_t msize)
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{
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assert (srv != NULL);
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assert (sname != NULL);
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if (srv == NULL) {
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return -1;
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}
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// gets the service path
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service_path (srv->spath, sname, srv->index, srv->version);
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usock_connect(&srv->service_fd, srv->spath);
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// TODO: connection algorithm
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// send connection string and receive acknowledgement
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srv_write(srv, connectionstr, msize);
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return 0;
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}
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int app_close (struct service *srv)
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{
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return usock_close (srv->service_fd);
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}
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int app_read (struct service *srv, char ** buf, size_t *msize)
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{
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return usock_recv (srv->service_fd, buf, msize);
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}
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int app_write (struct service *srv, char * buf, size_t msize)
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{
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return usock_send (srv->service_fd, buf, msize);
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}
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