pubsub wip

Makefile

@@ -15,7 +15,7 @@ LDFLAGS :=
 
 Q := @
 
-all: libposj init-connection open-read-close-fifo open-write-close-fifo service-test
+all: libposj init-connection open-read-close-fifo open-write-close-fifo service-test pubsub/pubsubd
 
 libposj: libposj.so libposj.a
 	@:
@@ -93,6 +93,23 @@ service-test.uninstall:
 	@echo '  [RM]    $(BINDIR)/service-test'
 	$(Q)rm -f '$(DESTDIR)$(BINDIR)/service-test'
 
+pubsub/pubsubd: pubsub/list.o pubsub/pubsubd.o 
+	@echo '  [LD]    pubsub/pubsubd'
+	$(Q)$(CC) -o pubsub/pubsubd $(LDFLAGS) pubsub/list.o pubsub/pubsubd.o libposj.a
+
+pubsub/pubsubd.install: pubsub/pubsubd
+	@echo '  [IN]    $(BINDIR)/pubsubd'
+	$(Q)mkdir -p '$(DESTDIR)$(BINDIR)'
+	$(Q)install -m0755 pubsub/pubsubd $(DESTDIR)$(BINDIR)/pubsubd
+
+pubsub/pubsubd.clean:  pubsub/list.o.clean pubsub/pubsubd.o.clean
+	@echo '  [RM]    pubsub/pubsubd'
+	$(Q)rm -f pubsub/pubsubd
+
+pubsub/pubsubd.uninstall:
+	@echo '  [RM]    $(BINDIR)/pubsubd'
+	$(Q)rm -f '$(DESTDIR)$(BINDIR)/pubsubd'
+
 libposj.so: lib/communication.o 
 	@echo '  [LD]    libposj.so'
 	$(Q)$(CC) -o libposj.so -shared $(LDFLAGS) lib/communication.o 
@@ -199,6 +216,30 @@ service-test.o.clean:
 
 service-test.o.uninstall:
 
+pubsub/list.o: pubsub/list.c pubsub/list.h
+	@echo '  [CC]    pubsub/list.o'
+	$(Q)$(CC) $(CFLAGS) -I lib -c pubsub/list.c  -I lib -o pubsub/list.o
+
+pubsub/list.o.install:
+
+pubsub/list.o.clean:
+	@echo '  [RM]    pubsub/list.o'
+	$(Q)rm -f pubsub/list.o
+
+pubsub/list.o.uninstall:
+
+pubsub/pubsubd.o: pubsub/pubsubd.c
+	@echo '  [CC]    pubsub/pubsubd.o'
+	$(Q)$(CC) $(CFLAGS) -I lib -c pubsub/pubsubd.c  -I lib -o pubsub/pubsubd.o
+
+pubsub/pubsubd.o.install:
+
+pubsub/pubsubd.o.clean:
+	@echo '  [RM]    pubsub/pubsubd.o'
+	$(Q)rm -f pubsub/pubsubd.o
+
+pubsub/pubsubd.o.uninstall:
+
 $(DESTDIR)$(PREFIX):
 	@echo '  [DIR]   $(PREFIX)'
 	$(Q)mkdir -p $(DESTDIR)$(PREFIX)
@@ -214,12 +255,12 @@ $(DESTDIR)$(SHAREDIR):
 $(DESTDIR)$(INCLUDEDIR):
 	@echo '  [DIR]   $(INCLUDEDIR)'
 	$(Q)mkdir -p $(DESTDIR)$(INCLUDEDIR)
-install: subdirs.install libposj.install init-connection.install open-read-close-fifo.install open-write-close-fifo.install service-test.install libposj.so.install libposj.a.install init-connection.o.install lib/communication.o.install open-read-close-fifo.o.install lib/communication.o.install open-write-close-fifo.o.install lib/communication.o.install service-test.o.install lib/communication.o.install lib/communication.o.install lib/communication.o.install
+install: subdirs.install libposj.install init-connection.install open-read-close-fifo.install open-write-close-fifo.install service-test.install pubsub/pubsubd.install libposj.so.install libposj.a.install init-connection.o.install lib/communication.o.install open-read-close-fifo.o.install lib/communication.o.install open-write-close-fifo.o.install lib/communication.o.install service-test.o.install lib/communication.o.install pubsub/list.o.install pubsub/pubsubd.o.install lib/communication.o.install lib/communication.o.install
 	@:
 
 subdirs.install:
 
-uninstall: subdirs.uninstall libposj.uninstall init-connection.uninstall open-read-close-fifo.uninstall open-write-close-fifo.uninstall service-test.uninstall libposj.so.uninstall libposj.a.uninstall init-connection.o.uninstall lib/communication.o.uninstall open-read-close-fifo.o.uninstall lib/communication.o.uninstall open-write-close-fifo.o.uninstall lib/communication.o.uninstall service-test.o.uninstall lib/communication.o.uninstall lib/communication.o.uninstall lib/communication.o.uninstall
+uninstall: subdirs.uninstall libposj.uninstall init-connection.uninstall open-read-close-fifo.uninstall open-write-close-fifo.uninstall service-test.uninstall pubsub/pubsubd.uninstall libposj.so.uninstall libposj.a.uninstall init-connection.o.uninstall lib/communication.o.uninstall open-read-close-fifo.o.uninstall lib/communication.o.uninstall open-write-close-fifo.o.uninstall lib/communication.o.uninstall service-test.o.uninstall lib/communication.o.uninstall pubsub/list.o.uninstall pubsub/pubsubd.o.uninstall lib/communication.o.uninstall lib/communication.o.uninstall
 	@:
 
 subdirs.uninstall:
@@ -229,7 +270,7 @@ test: all subdirs subdirs.test
 
 subdirs.test:
 
-clean: libposj.clean init-connection.clean open-read-close-fifo.clean open-write-close-fifo.clean service-test.clean libposj.so.clean libposj.a.clean init-connection.o.clean lib/communication.o.clean open-read-close-fifo.o.clean lib/communication.o.clean open-write-close-fifo.o.clean lib/communication.o.clean service-test.o.clean lib/communication.o.clean lib/communication.o.clean lib/communication.o.clean
+clean: libposj.clean init-connection.clean open-read-close-fifo.clean open-write-close-fifo.clean service-test.clean pubsub/pubsubd.clean libposj.so.clean libposj.a.clean init-connection.o.clean lib/communication.o.clean open-read-close-fifo.o.clean lib/communication.o.clean open-write-close-fifo.o.clean lib/communication.o.clean service-test.o.clean lib/communication.o.clean pubsub/list.o.clean pubsub/pubsubd.o.clean lib/communication.o.clean lib/communication.o.clean
 
 distclean: clean
 
@@ -245,11 +286,14 @@ $(PACKAGE)-$(VERSION).tar.gz: distdir
 	@echo '  [TAR]   $(PACKAGE)-$(VERSION).tar.gz'
 	$(Q)tar czf $(PACKAGE)-$(VERSION).tar.gz \
 		$(PACKAGE)-$(VERSION)/init-connection.c \
+		$(PACKAGE)-$(VERSION)/pubsub/list.c \
+		$(PACKAGE)-$(VERSION)/pubsub/pubsubd.c \
 		$(PACKAGE)-$(VERSION)/service-test.c \
 		$(PACKAGE)-$(VERSION)/open-write-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/open-read-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/lib/communication.c \
 		$(PACKAGE)-$(VERSION)/libposj.a \
+		$(PACKAGE)-$(VERSION)/pubsub/list.h \
 		$(PACKAGE)-$(VERSION)/lib/communication.h
 
 dist-xz: $(PACKAGE)-$(VERSION).tar.xz
@@ -257,11 +301,14 @@ $(PACKAGE)-$(VERSION).tar.xz: distdir
 	@echo '  [TAR]   $(PACKAGE)-$(VERSION).tar.xz'
 	$(Q)tar cJf $(PACKAGE)-$(VERSION).tar.xz \
 		$(PACKAGE)-$(VERSION)/init-connection.c \
+		$(PACKAGE)-$(VERSION)/pubsub/list.c \
+		$(PACKAGE)-$(VERSION)/pubsub/pubsubd.c \
 		$(PACKAGE)-$(VERSION)/service-test.c \
 		$(PACKAGE)-$(VERSION)/open-write-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/open-read-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/lib/communication.c \
 		$(PACKAGE)-$(VERSION)/libposj.a \
+		$(PACKAGE)-$(VERSION)/pubsub/list.h \
 		$(PACKAGE)-$(VERSION)/lib/communication.h
 
 dist-bz2: $(PACKAGE)-$(VERSION).tar.bz2
@@ -269,11 +316,14 @@ $(PACKAGE)-$(VERSION).tar.bz2: distdir
 	@echo '  [TAR]   $(PACKAGE)-$(VERSION).tar.bz2'
 	$(Q)tar cjf $(PACKAGE)-$(VERSION).tar.bz2 \
 		$(PACKAGE)-$(VERSION)/init-connection.c \
+		$(PACKAGE)-$(VERSION)/pubsub/list.c \
+		$(PACKAGE)-$(VERSION)/pubsub/pubsubd.c \
 		$(PACKAGE)-$(VERSION)/service-test.c \
 		$(PACKAGE)-$(VERSION)/open-write-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/open-read-close-fifo.c \
 		$(PACKAGE)-$(VERSION)/lib/communication.c \
 		$(PACKAGE)-$(VERSION)/libposj.a \
+		$(PACKAGE)-$(VERSION)/pubsub/list.h \
 		$(PACKAGE)-$(VERSION)/lib/communication.h
 
 help:
@@ -304,6 +354,7 @@ help:
 	@echo '    - open-read-close-fifobinary'
 	@echo '    - open-write-close-fifobinary'
 	@echo '    - service-test  binary'
+	@echo '    - pubsub/pubsubdbinary'
 	@echo ''
 	@echo 'Makefile options:'
 	@echo '    - gnu:          true'

project.zsh

@@ -16,3 +16,9 @@ for i in *.c; do
 	ldflags[${i%.c}]="libposj.a"
 done
 
+targets+=(pubsub/pubsubd)
+type[pubsub/pubsubd]=binary
+sources[pubsub/pubsubd]="pubsub/list.c pubsub/pubsubd.c"
+cflags[pubsub/pubsubd]="-I lib"
+ldflags[pubsub/pubsubd]="libposj.a"
+

pubsub/list.c

@@ -0,0 +1,48 @@
+#include <stdlib.h>
+
+#include "list.h"
+
+List*
+list_new(size_t element_size)
+{
+	List* l = malloc(sizeof(*l));
+
+	l->element_size = element_size;
+	l->head = NULL;
+	l->tail = NULL;
+	l->length = 0;
+
+	return l;
+}
+
+void*
+list_append(List* l)
+{
+	struct link* link = malloc(sizeof(*link) + l->element_size);
+
+	link->next = l->tail;
+	l->tail = link;
+
+	if (!l->head)
+		l->tail = link;
+
+	l->length++;
+
+	return (void*) link->value;
+}
+
+void
+list_free(List* l)
+{
+	struct link* next;
+	struct link* link;
+
+	for (link = l->head; link; link = next) {
+		next = link->next;
+
+		free(link);
+	}
+
+	free(l);
+}
+

pubsub/pubsubd.c

@@ -0,0 +1,91 @@
+#include <stdlib.h>
+
+#include <communication.h>
+
+#include "list.h"
+
+typedef struct {
+	int test;
+} Publisher;
+
+typedef struct {
+	int test;
+} Subscriber;
+
+const char* service_name = "pubsub";
+
+void
+ohshit(int rvalue, const char* str) {
+	fprintf(stderr, "%s\n", str);
+
+	exit(rvalue);
+}
+
+int
+main(int argc, char* argv[])
+{
+	List* subscribers;
+	List* publishers;
+	int r;
+	char s_path[PATH_MAX];
+	int s_pipe;
+
+	(void) argc;
+	(void) argv;
+
+	service_path(s_path, service_name);
+
+	printf("Listening on %s.\n", s_path);
+
+	if ((r = service_create(s_path)))
+		ohshit(1, "service_create error");
+
+	publishers = list_new(sizeof(Publisher));
+	subscribers = list_new(sizeof(Subscriber));
+
+	if (!publishers && !subscribers)
+		ohshit(1, "out of memory, already...");
+
+	/* ?!?!?!?!? */
+	mkfifo(s_path, S_IRUSR);
+
+	s_pipe = open(s_path, S_IRUSR);
+
+	for (;;) {
+		struct process* proc;
+		int proc_count, i;
+
+		service_get_new_processes(&proc, &proc_count, s_pipe);
+
+		printf("> %i proc\n", proc_count);
+
+		for (i = 0; i < proc_count; i++) {
+			size_t message_size = BUFSIZ;
+			char buffer[BUFSIZ];
+
+			process_print(proc + i);
+
+			if ((r = process_read(&proc[i], &buffer, &message_size))) {
+				ohshit(1, "process_read error");
+			}
+
+			printf(": %s\n", buffer);
+
+			
+		}
+
+		service_free_processes(&proc, proc_count);
+
+		break;
+	}
+
+	close(s_pipe);
+
+	list_free(publishers);
+	list_free(subscribers);
+
+	service_close(s_path);
+
+	return 0;
+}
+