118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
#include "../lib/pubsubd.h"
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#include <stdlib.h>
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void
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ohshit(int rvalue, const char* str) {
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fprintf(stderr, "%s\n", str);
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exit(rvalue);
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}
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int
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main(int argc, char* argv[])
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{
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struct service srv;
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bzero (&srv, sizeof (struct service));
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srv_init (&srv, PUBSUB_SERVICE_NAME);
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printf ("Listening on %s.\n", srv.spath);
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// creates the service named pipe, that listens to client applications
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if (srv_create (&srv))
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ohshit(1, "service_create error");
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// init chans list
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struct channels chans;
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bzero (&chans, sizeof (struct channels));
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pubsubd_channels_init (&chans);
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for (;;) {
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// for each new process
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struct app_list_elm ale;
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bzero (&ale, sizeof (struct app_list_elm));
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pubsubd_get_new_process (&srv, &ale, &chans);
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pubsubd_channels_print (&chans);
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// end the application
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if (ale.action == PUBSUB_QUIT) {
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printf ("Quitting ...\n");
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pubsubd_channels_del_all (&chans);
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srv_close (&srv);
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// TODO end the threads
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exit (0);
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}
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// TODO thread to handle multiple clients at a time
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// TODO register the subscriber
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// each chan has a list of subscribers
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// someone who only push a msg doesn't need to be registered
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if (ale.action == PUBSUB_SUB || ale.action == PUBSUB_BOTH) {
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// TODO
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}
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else if (ale.action == PUBSUB_PUB) {
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// TODO add it to the application to follow
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// TODO publish a message
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// then
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}
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pubsubd_app_list_elm_free (&ale);
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}
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// the application will shut down, and remove the service named pipe
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if (srv_close (&srv))
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ohshit (1, "service_close error");
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return EXIT_SUCCESS;
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}
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#if 0
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void main_loop (const struct service *srv)
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{
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int ret;
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struct process proc;
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int cnt = 10;
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while (cnt--) {
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// -1 : error, 0 = no new process, 1 = new process
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ret = srv_get_new_process (&proc, srv);
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if (ret == -1) {
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fprintf (stderr, "error service_get_new_process\n");
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continue;
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} else if (ret == 0) { // that should not happen
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continue;
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}
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// printf ("before print\n");
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process_print (&proc);
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// printf ("after print\n");
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// about the message
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size_t msize = BUFSIZ;
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char buf[BUFSIZ];
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bzero(buf, BUFSIZ);
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// printf ("before read\n");
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if ((ret = srv_read (&proc, &buf, &msize))) {
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fprintf(stdout, "error service_read %d\n", ret);
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continue;
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}
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// printf ("after read\n");
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printf ("read, size %ld : %s\n", msize, buf);
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// printf ("before proc write\n");
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if ((ret = srv_write (&proc, &buf, msize))) {
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fprintf(stdout, "error service_write %d\n", ret);
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continue;
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}
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// printf ("after proc write\n");
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printf ("\033[32mStill \033[31m%d\033[32m applications to serve\n",cnt);
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}
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}
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#endif
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