14 files changed, 0 insertions, 610 deletions

diff --git a/doc/examples/daemon-depedencies/.gitignore b/doc/examples/daemon-depedencies/.gitignore
deleted file mode 100644
index 0dac119..0000000
--- a/doc/examples/daemon-depedencies/.gitignore
+++ /dev/null
@@ -1,10 +0,0 @@
-run/
-announce
-await-ready
-await-started
-cleanup
-init
-require
-start-daemon
-test-daemon
-
diff --git a/doc/examples/daemon-depedencies/Makefile b/doc/examples/daemon-depedencies/Makefile
deleted file mode 100644
index bf6fe88..0000000
--- a/doc/examples/daemon-depedencies/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-COMMANDS = announce await-ready await-started cleanup init require start-daemon test-daemon
-
-all: ${COMMANDS}
-
-%: %.c
-	${CC} -Wall -Wextra -pedantic -std=c99 -lbus -o $@ $<
-
-clean:
-	-rm ${COMMANDS}
-	-rm -r run
-
-
-.PHONY: all clean
-
diff --git a/doc/examples/daemon-depedencies/README b/doc/examples/daemon-depedencies/README
deleted file mode 100644
index a9f5783..0000000
--- a/doc/examples/daemon-depedencies/README
+++ /dev/null
@@ -1,19 +0,0 @@
-Use-case example.
-
-This example shows how bus can be used in a init
-system to provide "aggressivly" parallel startup
-of daemons.
-
-
-First of, run make to build this example.
-
-To start the example run ./init. It will print in
-red export-statement you may want to run i other
-terminals. You will need to select at least one
-daemon, for example you can run `./init d-ntp`.
-The available pretend daemons are: d-network,
-d-ntp and d-ssh.
-
-When you are done run ./cleanup with BUS_INIT
-exported with the value printed by ./init.
-
diff --git a/doc/examples/daemon-depedencies/announce.c b/doc/examples/daemon-depedencies/announce.c
deleted file mode 100644
index d928adb..0000000
--- a/doc/examples/daemon-depedencies/announce.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <unistd.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-
-
-int
-main(int argc, char *argv[])
-{
-	bus_t bus;
-	if (argc < 3)
-		return fprintf(stderr, "USAGE: %s state daemon", *argv), 2;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
-	sprintf(arg, "%ji %s %s", (intmax_t)getppid(), argv[1], argv[2]);
-	t(bus_write(&bus, arg, 0));
-	t(bus_close(&bus));
-	return 0;
-
-fail:
-	perror("announce");
-	return 1;
-}
diff --git a/doc/examples/daemon-depedencies/await-ready.c b/doc/examples/daemon-depedencies/await-ready.c
deleted file mode 100644
index fea2382..0000000
--- a/doc/examples/daemon-depedencies/await-ready.c
+++ /dev/null
@@ -1,122 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/wait.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-static int argc;
-static char **argv;
-static int remaining = 0;
-static char *started = NULL;
-static char msg[BUS_MEMORY_SIZE];
-
-
-static void
-announce_wait(pid_t pid)
-{
-	bus_t bus;
-	int i;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
-	for (i = 1; i < argc; i++) {
-		if (!started[i]) {
-			sprintf(arg, "%ji awaiting-ready %s", (intmax_t)pid, argv[i]);
-			t(bus_write(&bus, arg, 0));
-		}
-	}
-	t(bus_close(&bus));
-	return;
-
-fail:
-	perror("await-ready");
-}
-
-
-static int
-callback(const char *message, void *user_data)
-{
-	int i;
-	char *arg2;
-	char *arg3;
-	pid_t pid;
-	pid_t ppid;
-
-	if (!message) {
-		ppid = getppid();
-		pid = fork();
-		if (pid == 0) {
-			if (fork() == 0)
-				announce_wait(ppid);
-			exit(0);
-		} else {
-			(void) waitpid(pid, NULL, 0); /* Let's pretend everything will go swimmingly. */
-		}
-		return 1;
-	}
-
-	strncpy(msg, message, BUS_MEMORY_SIZE - 1);
-	msg[BUS_MEMORY_SIZE - 1] = 0;
-
-	arg2 = strchr(msg, ' ');
-	if (!arg2)
-		return 1;
-	arg3 = strchr(++arg2, ' ');
-	if (!arg3)
-		return 1;
-	*arg3++ = 0;
-
-	if (strcmp(arg2, "ready"))
-		return 1;
-
-	for (i = 1; i < argc; i++)
-		if (!started[i] && !strcmp(argv[i], arg3))
-			started[i] = 1, remaining--;
-
-	return !!remaining;
-	(void) user_data;
-}
-
-
-int
-main(int argc_, char *argv_[])
-{
-	bus_t bus;
-	int i;
-
-	argc = argc_;
-	argv = argv_;
-
-	if (argc < 2)
-		return fprintf(stderr, "USAGE: %s daemon...", *argv), 2;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_RDONLY));
-	started = calloc(argc, sizeof(char));
-	t(started == NULL);
-
-	started[0] = 1;
-	for (i = 1; i < argc; i++) {
-		sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/ready-daemons\" >/dev/null", argv[i]);
-		if (!WEXITSTATUS(system(arg)))
-			started[i] = 1;
-		else
-		        remaining++;
-	}
-
-	if (remaining)
-		bus_read(&bus, callback, NULL);
-
-	bus_close(&bus);
-	free(started);
-	return 0;
-
-fail:
-	perror("await-ready");
-	bus_close(&bus);
-	free(started);
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/await-started.c b/doc/examples/daemon-depedencies/await-started.c
deleted file mode 100644
index 99ba14f..0000000
--- a/doc/examples/daemon-depedencies/await-started.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/wait.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-static int argc;
-static char **argv;
-static int remaining = 0;
-static char *started = NULL;
-static char msg[BUS_MEMORY_SIZE];
-
-
-static void
-announce_wait(pid_t pid)
-{
-	bus_t bus;
-	int i;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
-	for (i = 1; i < argc; i++) {
-		if (!started[i]) {
-			sprintf(arg, "%ji awaiting-started %s", (intmax_t)pid, argv[i]);
-			t(bus_write(&bus, arg, 0));
-		}
-	}
-	t(bus_close(&bus));
-	return;
-
-fail:
-	perror("await-started");
-}
-
-
-static int
-callback(const char *message, void *user_data)
-{
-	int i;
-	char *arg2;
-	char *arg3;
-	pid_t pid;
-	pid_t ppid;
-
-	if (!message) {
-		ppid = getppid();
-		pid = fork();
-		if (pid == 0) {
-			if (fork() == 0)
-				announce_wait(ppid);
-			exit(0);
-		} else {
-			(void) waitpid(pid, NULL, 0); /* Let's pretend everything will go swimmingly. */
-		}
-		return 1;
-	}
-
-	strncpy(msg, message, BUS_MEMORY_SIZE - 1);
-	msg[BUS_MEMORY_SIZE - 1] = 0;
-
-	arg2 = strchr(msg, ' ');
-	if (!arg2)
-		return 1;
-	arg3 = strchr(++arg2, ' ');
-	if (!arg3)
-		return 1;
-	*arg3++ = 0;
-
-	if (strcmp(arg2, "started") && strcmp(arg2, "ready"))
-		return 1;
-
-	for (i = 1; i < argc; i++)
-		if (!started[i] && !strcmp(argv[i], arg3))
-			started[i] = 1, remaining--;
-
-	return !!remaining;
-	(void) user_data;
-}
-
-
-int
-main(int argc_, char *argv_[])
-{
-	bus_t bus;
-	int i;
-
-	argc = argc_;
-	argv = argv_;
-
-	if (argc < 2)
-		return fprintf(stderr, "USAGE: %s daemon...", *argv), 2;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_RDONLY));
-	started = calloc(argc, sizeof(char));
-	t(started == NULL);
-
-	started[0] = 1;
-	for (i = 1; i < argc; i++) {
-		sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null", argv[i]);
-		if (!WEXITSTATUS(system(arg))) {
-			started[i] = 1;
-		} else {
-			sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/ready-daemons\" >/dev/null", argv[i]);
-			if (!WEXITSTATUS(system(arg)))
-				started[i] = 1;
-			else
-			        remaining++;
-		}
-	}
-
-	if (remaining)
-		bus_read(&bus, callback, NULL);
-
-	bus_close(&bus);
-	free(started);
-	return 0;
-
-fail:
-	perror("await-started");
-	bus_close(&bus);
-	free(started);
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/cleanup.c b/doc/examples/daemon-depedencies/cleanup.c
deleted file mode 100644
index f9ead6d..0000000
--- a/doc/examples/daemon-depedencies/cleanup.c
+++ /dev/null
@@ -1,25 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-
-int
-main()
-{
-	char *bus_address = getenv("BUS_INIT");
-	if (!bus_address || !*bus_address) {
-		fprintf(stderr, "$BUS_INIT has not been set, its export statement "
-			"should have been printed in bold red by ./init\n");
-		return 1;
-	}
-	t(bus_unlink(bus_address));
-	return 0;
-
-fail:
-	perror("cleanup");
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/d-network b/doc/examples/daemon-depedencies/d-network
deleted file mode 100755
index 1b8c7dd..0000000
--- a/doc/examples/daemon-depedencies/d-network
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-PATH=.:$PATH
-d=d-network
-
-echo $d: starting
-sleep 2
-echo $d: ready
-announce ready $d
-
diff --git a/doc/examples/daemon-depedencies/d-ntp b/doc/examples/daemon-depedencies/d-ntp
deleted file mode 100755
index 0f29c7c..0000000
--- a/doc/examples/daemon-depedencies/d-ntp
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/sh
-PATH=.:$PATH
-d=d-ntp
-
-require d-network
-echo $d: started
-announce started $d
-await-ready d-network
-echo $d: ready
-announce ready $d
-
diff --git a/doc/examples/daemon-depedencies/d-ssh b/doc/examples/daemon-depedencies/d-ssh
deleted file mode 100755
index 487354e..0000000
--- a/doc/examples/daemon-depedencies/d-ssh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-PATH=.:$PATH
-d=d-ssh
-
-require d-network
-echo $d: starting
-sleep 1
-echo $d: started
-announce started $d
-sleep 1
-echo $d: ready
-announce ready $d
-
diff --git a/doc/examples/daemon-depedencies/init.c b/doc/examples/daemon-depedencies/init.c
deleted file mode 100644
index b7182c6..0000000
--- a/doc/examples/daemon-depedencies/init.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/wait.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char msg[BUS_MEMORY_SIZE];
-static int argc;
-static char **argv;
-static char arg[4098];
-
-
-static void
-start_daemons()
-{
-	int i;
-	for (i = 1; i < argc; i++)
-		if (fork() == 0)
-			execl("./start-daemon", "./start-daemon", argv[i], NULL); 
-}
-
-
-static int
-callback(const char *message, void *user_data)
-{
-	pid_t pid;
-	char *arg2;
-	char *arg3;
-	if (!message) {
-		pid = fork();
-		t(pid == -1);
-		if (pid == 0) {
-			if (fork() == 0) {
-				start_daemons();
-			}
-			exit(0);
-		} else {
-			(void) waitpid(pid, NULL, 0); /* Let's pretend everything will go swimmingly. */
-		}
-		return 1;
-	}
-
-	strncpy(msg, message, BUS_MEMORY_SIZE - 1);
-	msg[BUS_MEMORY_SIZE - 1] = 0;
-
-	pid = fork();
-	t(pid == -1);
-
-	if (pid == 0) {
-		if (fork() == 0) {
-			arg2 = strchr(msg, ' ');
-			if (arg2 == NULL)
-				exit(0);
-			arg3 = strchr(++arg2, ' ');
-			if (arg3 == NULL)
-				exit(0);
-			*arg3++ = 0;
-			if (!strcmp(arg2, "require")) {
-				execl("./start-daemon", "./start-daemon", arg3, NULL);
-			} else if (!strcmp(arg2, "awaiting-started")) {
-				execl("./test-daemon", "./test-daemon", arg3, "started", NULL);
-			} else if (!strcmp(arg2, "awaiting-ready") || !strcmp(arg2, "awaiting")) {
-				execl("./test-daemon", "./test-daemon", arg3, "ready", NULL);
-			} else if (!strcmp(arg2, "started")) {
-				sprintf(arg,
-					"grep '^%s\\$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null || "
-					"echo %s >> \"${XDG_RUNTIME_DIR}/started-daemons\"",
-					arg3, arg3);
-				execlp("sh", "sh", "-c", arg, NULL);
-			} else if (!strcmp(arg2, "ready")) {
-				sprintf(arg,
-					"grep '^%s\\$' < \"${XDG_RUNTIME_DIR}/ready-daemons\" >/dev/null || "
-					"echo %s >> \"${XDG_RUNTIME_DIR}/ready-daemons\"",
-					arg3, arg3);
-				execlp("sh", "sh", "-c", arg, NULL);
-			}
-		}
-		exit(0);
-	} else {
-		(void) waitpid(pid, NULL, 0); /* Let's pretend everything will go swimmingly. */
-	}
-
-	return 1;
-	(void) user_data;
-
-fail:
-	perror("init");
-	return -1;
-}
-
-
-int
-main(int argc_, char *argv_[])
-{
-	char *bus_address = NULL;
-	bus_t bus;
-	argv = argv_;
-	argc = argc_;
-	if (argc < 2) {
-		fprintf(stderr, "USAGE: %s daemon...\n", *argv);
-		return 1;
-	}
-	t(setenv("XDG_RUNTIME_DIR", "./run", 1));  /* Real init systems with not have the period. */
-	system("mkdir -p -- \"${XDG_RUNTIME_DIR}\"");
-	system("truncate -s 0 -- \"${XDG_RUNTIME_DIR}/started-daemons\"");
-	system("truncate -s 0 -- \"${XDG_RUNTIME_DIR}/ready-daemons\"");
-	t(bus_create(NULL, 1, &bus_address));
-	fprintf(stderr, "\033[00;01;31mexport BUS_INIT=%s\033[00m\n", bus_address);
-	fprintf(stderr, "\033[00;31mexport XDG_RUNTIME_DIR=./run\033[00m\n");
-	t(setenv("BUS_INIT", bus_address, 1));
-	t(bus_open(&bus, bus_address, BUS_RDONLY));
-	t(bus_read(&bus, callback, NULL));
-	bus_close(&bus);
-	free(bus_address);
-	return 0;
-
-fail:
-	perror("init");
-	bus_close(&bus);
-	free(bus_address);
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/require.c b/doc/examples/daemon-depedencies/require.c
deleted file mode 100644
index e378431..0000000
--- a/doc/examples/daemon-depedencies/require.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <unistd.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-
-
-int
-main(int argc, char *argv[])
-{
-	bus_t bus;
-	int i;
-	if (argc < 2)
-		return fprintf(stderr, "USAGE: %s daemon...", *argv), 2;
-	t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
-
-	for (i = 1; i < argc; i++) {
-		sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null", argv[i]);
-		if (WEXITSTATUS(system(arg))) {
-			sprintf(arg, "%ji require %s", (intmax_t)getppid(), argv[i]);
-			t(bus_write(&bus, arg, 0));
-		}
-	}
-
-	bus_close(&bus);
-	return 0;
-
-fail:
-	perror("require");
-	bus_close(&bus);
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/start-daemon.c b/doc/examples/daemon-depedencies/start-daemon.c
deleted file mode 100644
index 7c224d5..0000000
--- a/doc/examples/daemon-depedencies/start-daemon.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-
-
-int
-main(int argc, char *argv[])
-{
-	if (argc != 2)
-		return fprintf(stderr, "This program should be called from ./init\n"), 2;
-
-	sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null", argv[1]);
-	if (!WEXITSTATUS(system(arg)))
-		return 0;
-	sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/ready-daemons\" >/dev/null", argv[1]);
-	if (!WEXITSTATUS(system(arg)))
-		return 0;
-
-	sprintf(arg, "./%s", argv[1]);
-	execlp(arg, arg, NULL);
-	perror("start-daemon");
-	return 1;
-}
-
diff --git a/doc/examples/daemon-depedencies/test-daemon.c b/doc/examples/daemon-depedencies/test-daemon.c
deleted file mode 100644
index 32ee545..0000000
--- a/doc/examples/daemon-depedencies/test-daemon.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <bus.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define t(stmt)  if (stmt) goto fail
-
-
-static char arg[4098];
-
-
-int
-main(int argc, char *argv[])
-{
-	bus_t bus;
-	if (argc != 3)
-		return fprintf(stderr, "This program should be called from ./init\n"), 2;
-retry:
-	sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/%s-daemons\" >/dev/null", argv[1], argv[2]);
-	if (!WEXITSTATUS(system(arg))) {
-		t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
-		sprintf(arg, "0 %s %s", argv[2], argv[1]);
-		t(bus_write(&bus, arg, 0));
-		bus_close(&bus);
-	} else if (!strcmp(argv[2], "started")) {
-		argv[2] = "ready";
-		goto retry;
-	}
-	return 0;
-
-fail:
-	perror("test-daemon");
-	return 1;
-}
-