eloop: Remove eloop_none.c

This was supposed to be a minimal sample of eloop wrapper, but it is
unclear whether this is of that much use and the file has not been kept
up-to-date. Remove this file to reduce maintenance effort. The other
eloop*.c files can be used as a starting point if something new is
needed.

Signed-hostap: Jouni Malinen <j@w1.fi>

src/utils/eloop_none.c

@@ -1,410 +0,0 @@
-/*
- * Event loop - empty template (basic structure, but no OS specific operations)
- * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
- *
- * This software may be distributed under the terms of the BSD license.
- * See README for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "list.h"
-#include "eloop.h"
-
-
-struct eloop_sock {
-	int sock;
-	void *eloop_data;
-	void *user_data;
-	eloop_sock_handler handler;
-};
-
-struct eloop_timeout {
-	struct dl_list list;
-	struct os_time time;
-	void *eloop_data;
-	void *user_data;
-	eloop_timeout_handler handler;
-};
-
-struct eloop_signal {
-	int sig;
-	void *user_data;
-	eloop_signal_handler handler;
-	int signaled;
-};
-
-struct eloop_data {
-	int max_sock, reader_count;
-	struct eloop_sock *readers;
-
-	struct dl_list timeout;
-
-	int signal_count;
-	struct eloop_signal *signals;
-	int signaled;
-	int pending_terminate;
-
-	int terminate;
-	int reader_table_changed;
-};
-
-static struct eloop_data eloop;
-
-
-int eloop_init(void)
-{
-	os_memset(&eloop, 0, sizeof(eloop));
-	dl_list_init(&eloop.timeout);
-	return 0;
-}
-
-
-int eloop_register_read_sock(int sock, eloop_sock_handler handler,
-			     void *eloop_data, void *user_data)
-{
-	struct eloop_sock *tmp;
-
-	tmp = os_realloc_array(eloop.readers, eloop.reader_count + 1,
-			       sizeof(struct eloop_sock));
-	if (tmp == NULL)
-		return -1;
-
-	tmp[eloop.reader_count].sock = sock;
-	tmp[eloop.reader_count].eloop_data = eloop_data;
-	tmp[eloop.reader_count].user_data = user_data;
-	tmp[eloop.reader_count].handler = handler;
-	eloop.reader_count++;
-	eloop.readers = tmp;
-	if (sock > eloop.max_sock)
-		eloop.max_sock = sock;
-	eloop.reader_table_changed = 1;
-
-	return 0;
-}
-
-
-void eloop_unregister_read_sock(int sock)
-{
-	int i;
-
-	if (eloop.readers == NULL || eloop.reader_count == 0)
-		return;
-
-	for (i = 0; i < eloop.reader_count; i++) {
-		if (eloop.readers[i].sock == sock)
-			break;
-	}
-	if (i == eloop.reader_count)
-		return;
-	if (i != eloop.reader_count - 1) {
-		os_memmove(&eloop.readers[i], &eloop.readers[i + 1],
-			   (eloop.reader_count - i - 1) *
-			   sizeof(struct eloop_sock));
-	}
-	eloop.reader_count--;
-	eloop.reader_table_changed = 1;
-}
-
-
-int eloop_register_timeout(unsigned int secs, unsigned int usecs,
-			   eloop_timeout_handler handler,
-			   void *eloop_data, void *user_data)
-{
-	struct eloop_timeout *timeout, *tmp;
-	os_time_t now_sec;
-
-	timeout = os_zalloc(sizeof(*timeout));
-	if (timeout == NULL)
-		return -1;
-	if (os_get_time(&timeout->time) < 0) {
-		os_free(timeout);
-		return -1;
-	}
-	now_sec = timeout->time.sec;
-	timeout->time.sec += secs;
-	if (timeout->time.sec < now_sec) {
-		/*
-		 * Integer overflow - assume long enough timeout to be assumed
-		 * to be infinite, i.e., the timeout would never happen.
-		 */
-		wpa_printf(MSG_DEBUG, "ELOOP: Too long timeout (secs=%u) to "
-			   "ever happen - ignore it", secs);
-		os_free(timeout);
-		return 0;
-	}
-	timeout->time.usec += usecs;
-	while (timeout->time.usec >= 1000000) {
-		timeout->time.sec++;
-		timeout->time.usec -= 1000000;
-	}
-	timeout->eloop_data = eloop_data;
-	timeout->user_data = user_data;
-	timeout->handler = handler;
-
-	/* Maintain timeouts in order of increasing time */
-	dl_list_for_each(tmp, &eloop.timeout, struct eloop_timeout, list) {
-		if (os_time_before(&timeout->time, &tmp->time)) {
-			dl_list_add(tmp->list.prev, &timeout->list);
-			return 0;
-		}
-	}
-	dl_list_add_tail(&eloop.timeout, &timeout->list);
-
-	return 0;
-}
-
-
-static void eloop_remove_timeout(struct eloop_timeout *timeout)
-{
-	dl_list_del(&timeout->list);
-	os_free(timeout);
-}
-
-
-int eloop_cancel_timeout(eloop_timeout_handler handler,
-			 void *eloop_data, void *user_data)
-{
-	struct eloop_timeout *timeout, *prev;
-	int removed = 0;
-
-	dl_list_for_each_safe(timeout, prev, &eloop.timeout,
-			      struct eloop_timeout, list) {
-		if (timeout->handler == handler &&
-		    (timeout->eloop_data == eloop_data ||
-		     eloop_data == ELOOP_ALL_CTX) &&
-		    (timeout->user_data == user_data ||
-		     user_data == ELOOP_ALL_CTX)) {
-			eloop_remove_timeout(timeout);
-			removed++;
-		}
-	}
-
-	return removed;
-}
-
-
-int eloop_cancel_timeout_one(eloop_timeout_handler handler,
-			     void *eloop_data, void *user_data,
-			     struct os_time *remaining)
-{
-	struct eloop_timeout *timeout, *prev;
-	int removed = 0;
-	struct os_time now;
-
-	os_get_time(&now);
-	remaining->sec = remaining->usec = 0;
-
-	dl_list_for_each_safe(timeout, prev, &eloop.timeout,
-			      struct eloop_timeout, list) {
-		if (timeout->handler == handler &&
-		    (timeout->eloop_data == eloop_data) &&
-		    (timeout->user_data == user_data)) {
-			removed = 1;
-			if (os_time_before(&now, &timeout->time))
-				os_time_sub(&timeout->time, &now, remaining);
-			eloop_remove_timeout(timeout);
-			break;
-		}
-	}
-	return removed;
-}
-
-
-int eloop_is_timeout_registered(eloop_timeout_handler handler,
-				void *eloop_data, void *user_data)
-{
-	struct eloop_timeout *tmp;
-
-	dl_list_for_each(tmp, &eloop.timeout, struct eloop_timeout, list) {
-		if (tmp->handler == handler &&
-		    tmp->eloop_data == eloop_data &&
-		    tmp->user_data == user_data)
-			return 1;
-	}
-
-	return 0;
-}
-
-
-/* TODO: replace with suitable signal handler */
-#if 0
-static void eloop_handle_signal(int sig)
-{
-	int i;
-
-	eloop.signaled++;
-	for (i = 0; i < eloop.signal_count; i++) {
-		if (eloop.signals[i].sig == sig) {
-			eloop.signals[i].signaled++;
-			break;
-		}
-	}
-}
-#endif
-
-
-static void eloop_process_pending_signals(void)
-{
-	int i;
-
-	if (eloop.signaled == 0)
-		return;
-	eloop.signaled = 0;
-
-	if (eloop.pending_terminate) {
-		eloop.pending_terminate = 0;
-	}
-
-	for (i = 0; i < eloop.signal_count; i++) {
-		if (eloop.signals[i].signaled) {
-			eloop.signals[i].signaled = 0;
-			eloop.signals[i].handler(eloop.signals[i].sig,
-						 eloop.signals[i].user_data);
-		}
-	}
-}
-
-
-int eloop_register_signal(int sig, eloop_signal_handler handler,
-			  void *user_data)
-{
-	struct eloop_signal *tmp;
-
-	tmp = os_realloc_array(eloop.signals, eloop.signal_count + 1,
-			       sizeof(struct eloop_signal));
-	if (tmp == NULL)
-		return -1;
-
-	tmp[eloop.signal_count].sig = sig;
-	tmp[eloop.signal_count].user_data = user_data;
-	tmp[eloop.signal_count].handler = handler;
-	tmp[eloop.signal_count].signaled = 0;
-	eloop.signal_count++;
-	eloop.signals = tmp;
-
-	/* TODO: register signal handler */
-
-	return 0;
-}
-
-
-int eloop_register_signal_terminate(eloop_signal_handler handler,
-				    void *user_data)
-{
-#if 0
-	/* TODO: for example */
-	int ret = eloop_register_signal(SIGINT, handler, user_data);
-	if (ret == 0)
-		ret = eloop_register_signal(SIGTERM, handler, user_data);
-	return ret;
-#endif
-	return 0;
-}
-
-
-int eloop_register_signal_reconfig(eloop_signal_handler handler,
-				   void *user_data)
-{
-#if 0
-	/* TODO: for example */
-	return eloop_register_signal(SIGHUP, handler, user_data);
-#endif
-	return 0;
-}
-
-
-void eloop_run(void)
-{
-	int i;
-	struct os_time tv, now;
-
-	while (!eloop.terminate &&
-		(!dl_list_empty(&eloop.timeout) || eloop.reader_count > 0)) {
-		struct eloop_timeout *timeout;
-		timeout = dl_list_first(&eloop.timeout, struct eloop_timeout,
-					list);
-		if (timeout) {
-			os_get_time(&now);
-			if (os_time_before(&now, &timeout->time))
-				os_time_sub(&timeout->time, &now, &tv);
-			else
-				tv.sec = tv.usec = 0;
-		}
-
-		/*
-		 * TODO: wait for any event (read socket ready, timeout (tv),
-		 * signal
-		 */
-		os_sleep(1, 0); /* just a dummy wait for testing */
-
-		eloop_process_pending_signals();
-
-		/* check if some registered timeouts have occurred */
-		timeout = dl_list_first(&eloop.timeout, struct eloop_timeout,
-					list);
-		if (timeout) {
-			os_get_time(&now);
-			if (!os_time_before(&now, &timeout->time)) {
-				void *eloop_data = timeout->eloop_data;
-				void *user_data = timeout->user_data;
-				eloop_timeout_handler handler =
-					timeout->handler;
-				eloop_remove_timeout(timeout);
-				handler(eloop_data, user_data);
-			}
-
-		}
-
-		eloop.reader_table_changed = 0;
-		for (i = 0; i < eloop.reader_count; i++) {
-			/*
-			 * TODO: call each handler that has pending data to
-			 * read
-			 */
-			if (0 /* TODO: eloop.readers[i].sock ready */) {
-				eloop.readers[i].handler(
-					eloop.readers[i].sock,
-					eloop.readers[i].eloop_data,
-					eloop.readers[i].user_data);
-				if (eloop.reader_table_changed)
-					break;
-			}
-		}
-	}
-}
-
-
-void eloop_terminate(void)
-{
-	eloop.terminate = 1;
-}
-
-
-void eloop_destroy(void)
-{
-	struct eloop_timeout *timeout, *prev;
-
-	dl_list_for_each_safe(timeout, prev, &eloop.timeout,
-			      struct eloop_timeout, list) {
-		eloop_remove_timeout(timeout);
-	}
-	os_free(eloop.readers);
-	os_free(eloop.signals);
-}
-
-
-int eloop_terminated(void)
-{
-	return eloop.terminate;
-}
-
-
-void eloop_wait_for_read_sock(int sock)
-{
-	/*
-	 * TODO: wait for the file descriptor to have something available for
-	 * reading
-	 */
-}

wpa_supplicant/android.config

@@ -305,7 +305,6 @@ CONFIG_OS=unix
 # Select event loop implementation
 # eloop = select() loop (default)
 # eloop_win = Windows events and WaitForMultipleObject() loop
-# eloop_none = Empty template
 CONFIG_ELOOP=eloop
 
 # Should we use poll instead of select? Select is used by default.

wpa_supplicant/defconfig

@@ -307,7 +307,6 @@ CONFIG_BACKEND=file
 # Select event loop implementation
 # eloop = select() loop (default)
 # eloop_win = Windows events and WaitForMultipleObject() loop
-# eloop_none = Empty template
 #CONFIG_ELOOP=eloop
 
 # Should we use poll instead of select? Select is used by default.