From: Abramo Bagnara <abramo@alsa-project.org>
Date: Fri, 25 Aug 2000 14:33:53 +0000 (+0000)
Subject: Completed conf. Better name for snd_card_get_index. Cleaned card access
X-Git-Tag: v1.0.3~1167
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=b5576ef229b61c01873863b92ead26f9b5f0af38;p=alsa-lib.git

Completed conf. Better name for snd_card_get_index. Cleaned card access
---

diff --git a/include/conf.h b/include/conf.h
index a3eb6508..ca60adaf 100644
--- a/include/conf.h
+++ b/include/conf.h
@@ -38,6 +38,10 @@ int snd_config_delete(snd_config_t *config);
 
 int snd_config_make(snd_config_t **config, char *key,
 		    snd_config_type_t type);
+int snd_config_integer_make(snd_config_t **config, char *key);
+int snd_config_real_make(snd_config_t **config, char *key);
+int snd_config_string_make(snd_config_t **config, char *key);
+int snd_config_compound_make(snd_config_t **config, char *key, int join);
 
 int snd_config_integer_set(snd_config_t *config, long value);
 int snd_config_real_set(snd_config_t *config, double value);
diff --git a/include/control.h b/include/control.h
index ad154c99..446b4fc4 100644
--- a/include/control.h
+++ b/include/control.h
@@ -24,7 +24,7 @@ extern "C" {
 int snd_card_load(int card);
 int snd_cards(void);
 unsigned int snd_cards_mask(void);
-int snd_card_name(const char *name);
+int snd_card_get_index(const char *name);
 int snd_card_get_name(int card, char **name);
 int snd_card_get_longname(int card, char **name);
 
@@ -38,7 +38,7 @@ int snd_defaults_rawmidi_device(void);
 int snd_ctl_open(snd_ctl_t **handle, int card);
 int snd_ctl_close(snd_ctl_t *handle);
 int snd_ctl_file_descriptor(snd_ctl_t *handle);
-int snd_ctl_hw_info(snd_ctl_t *handle, struct snd_ctl_hw_info *info);
+int snd_ctl_hw_info(snd_ctl_t *handle, snd_ctl_hw_info_t *info);
 int snd_ctl_clist(snd_ctl_t *handle, snd_control_list_t * list);
 int snd_ctl_cinfo(snd_ctl_t *handle, snd_control_info_t * sw);
 int snd_ctl_cread(snd_ctl_t *handle, snd_control_t * control);
@@ -63,6 +63,16 @@ struct list_head {
         struct list_head *next, *prev;
 };        
 
+/**
+ * list_entry - get the struct for this entry
+ * @ptr:	the &struct list_head pointer.
+ * @type:	the type of the struct this is embedded in.
+ * @member:	the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+	((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+
+
 typedef struct snd_hcontrol_list_stru snd_hcontrol_list_t;
 typedef struct snd_hcontrol_stru snd_hcontrol_t;
 
diff --git a/include/list.h b/include/list.h
index 320dbf16..b7d74a3a 100644
--- a/include/list.h
+++ b/include/list.h
@@ -136,15 +136,6 @@ static __inline__ void list_splice(struct list_head *list, struct list_head *hea
 	}
 }
 
-/**
- * list_entry - get the struct for this entry
- * @ptr:	the &struct list_head pointer.
- * @type:	the type of the struct this is embedded in.
- * @member:	the name of the list_struct within the struct.
- */
-#define list_entry(ptr, type, member) \
-	((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
-
 /**
  * list_for_each	-	iterate over a list
  * @pos:	the &struct list_head to use as a loop counter.
diff --git a/src/conf/conf.c b/src/conf/conf.c
index ba583ff7..174b73e9 100644
--- a/src/conf/conf.c
+++ b/src/conf/conf.c
@@ -29,9 +29,15 @@
 #define SYS_ASOUNDRC "/etc/asound.conf"
 #define USR_ASOUNDRC ".asoundrc"
 
-typedef struct {
+struct filedesc {
+	char *name;
 	FILE *fp;
 	unsigned int line, column;
+	struct filedesc *next;
+};
+
+typedef struct {
+	struct filedesc *current;
 	int unget;
 	int ch;
 	enum {
@@ -45,23 +51,33 @@ typedef struct {
 static int get_char(input_t *input)
 {
 	int c;
+	struct filedesc *fd;
 	if (input->unget) {
 		input->unget = 0;
 		return input->ch;
 	}
-	c = getc(input->fp);
+ again:
+	fd = input->current;
+	c = getc(fd->fp);
 	switch (c) {
 	case '\n':
-		input->column = 0;
-		input->line++;
+		fd->column = 0;
+		fd->line++;
 		break;
 	case '\t':
-		input->column += 8 - input->column % 8;
+		fd->column += 8 - fd->column % 8;
 		break;
 	case EOF:
+		if (fd->next) {
+			fclose(fd->fp);
+			free(fd->name);
+			input->current = fd->next;
+			free(fd);
+			goto again;
+		}
 		break;
 	default:
-		input->column++;
+		fd->column++;
 		break;
 	}
 	return c;
@@ -74,11 +90,32 @@ static void unget_char(int c, input_t *input)
 	input->unget = 1;
 }
 
+static int get_delimstring(char **string, int delim, input_t *input);
+
 static int get_char_skip_comments(input_t *input)
 {
 	int c;
 	while (1) {
 		c = get_char(input);
+		if (c == '<') {
+			char *file;
+			FILE *fp;
+			struct filedesc *fd;
+			int err = get_delimstring(&file, '>', input);
+			if (err < 0)
+				return err;
+			fp = fopen(file, "r");
+			if (!fp)
+				return -errno;
+			fd = malloc(sizeof(*fd));
+			fd->name = file;
+			fd->fp = fp;
+			fd->next = input->current;
+			fd->line = 1;
+			fd->column = 0;
+			input->current = fd;
+			continue;
+		}
 		if (c != '#')
 			break;
 		while (1) {
@@ -89,9 +126,11 @@ static int get_char_skip_comments(input_t *input)
 				break;
 		}
 	}
+		
 	return c;
 }
 			
+
 static int get_nonwhite(input_t *input)
 {
 	int c;
@@ -346,6 +385,7 @@ static int parse_def(snd_config_t *father, input_t *input)
 	snd_config_t *n;
 	enum {MERGE, NOCREATE, REMOVE} mode;
 	while (1) {
+#if 0
 		c = get_nonwhite(input);
 		switch (c) {
 		case '?':
@@ -358,6 +398,9 @@ static int parse_def(snd_config_t *father, input_t *input)
 			mode = MERGE;
 			unget_char(c, input);
 		}
+#else
+		mode = MERGE;
+#endif
 		err = get_string(&id, input);
 		if (err < 0)
 			return err;
@@ -521,10 +564,15 @@ int snd_config_load(snd_config_t *config, FILE *fp)
 {
 	int err;
 	input_t input;
+	struct filedesc *fd;
 	assert(config && fp);
-	input.fp = fp;
-	input.line = 1;
-	input.column = 0;
+	fd = malloc(sizeof(*fd));
+	fd->name = NULL;
+	fd->fp = fp;
+	fd->line = 1;
+	fd->column = 0;
+	fd->next = NULL;
+	input.current = fd;
 	input.unget = 0;
 	err = parse_defs(config, &input);
 	if (err < 0) {
@@ -538,17 +586,17 @@ int snd_config_load(snd_config_t *config, FILE *fp)
 	return 0;
 }
 
-int snd_config_add(snd_config_t *config, snd_config_t *leaf)
+int snd_config_add(snd_config_t *father, snd_config_t *leaf)
 {
 	snd_config_iterator_t i;
-	assert(config && leaf);
-	snd_config_foreach(i, config) {
+	assert(father && leaf);
+	snd_config_foreach(i, father) {
 		snd_config_t *n = snd_config_entry(i);
 		if (strcmp(leaf->id, n->id) == 0)
 			return -EEXIST;
 	}
-	leaf->father = config;
-	list_add_tail(&leaf->list, &config->u.compound.fields);
+	leaf->father = father;
+	list_add_tail(&leaf->list, &father->u.compound.fields);
 	return 0;
 }
 
@@ -594,7 +642,33 @@ int snd_config_make(snd_config_t **config, char *id,
 			return -ENOMEM;
 	} else
 		id1 = NULL;
-	return _snd_config_make(config, id, type);
+	return _snd_config_make(config, id1, type);
+}
+
+int snd_config_integer_make(snd_config_t **config, char *id)
+{
+	return snd_config_make(config, id, SND_CONFIG_TYPE_INTEGER);
+}
+
+int snd_config_real_make(snd_config_t **config, char *id)
+{
+	return snd_config_make(config, id, SND_CONFIG_TYPE_REAL);
+}
+
+int snd_config_string_make(snd_config_t **config, char *id)
+{
+	return snd_config_make(config, id, SND_CONFIG_TYPE_STRING);
+}
+
+int snd_config_compound_make(snd_config_t **config, char *id,
+			     int join)
+{
+	int err;
+	err = snd_config_make(config, id, SND_CONFIG_TYPE_COMPOUND);
+	if (err < 0)
+		return err;
+	(*config)->u.compound.join = join;
+	return 0;
 }
 
 int snd_config_integer_set(snd_config_t *config, long value)
@@ -860,12 +934,12 @@ int snd_config_search(snd_config_t *config, char *key, snd_config_t **result)
 		snd_config_t *n;
 		int err;
 		char *p = strchr(key, '.');
+		if (config->type != SND_CONFIG_TYPE_COMPOUND)
+			return -ENOENT;
 		if (p) {
 			err = _snd_config_search(config, key, p - key, &n);
 			if (err < 0)
 				return err;
-			if (n->type != SND_CONFIG_TYPE_COMPOUND)
-				return -EINVAL;
 			config = n;
 			key = p + 1;
 		} else
@@ -876,40 +950,25 @@ int snd_config_search(snd_config_t *config, char *key, snd_config_t **result)
 int snd_config_searchv(snd_config_t *config,
 		       snd_config_t **result, ...)
 {
+	snd_config_t *n;
 	va_list arg;
-	const size_t bufsize = 256;
-	char _buf[bufsize];
-	char *buf = _buf;
-	size_t alloc = bufsize;
-	size_t idx = 0;
-	size_t dot = 0;
 	assert(config && result);
 	va_start(arg, result);
 	while (1) {
 		char *k = va_arg(arg, char *);
-		size_t len;
+		int err;
 		if (!k)
 			break;
-		len = strlen(k);
-		if (idx + len + dot>= alloc) {
-			size_t old_alloc = alloc;
-			alloc = idx + len + dot;
-			alloc += bufsize - alloc % bufsize;
-			if (old_alloc == bufsize) {
-				buf = malloc(alloc);
-				memcpy(buf, _buf, old_alloc);
-			} else 
-				buf = realloc(buf, alloc);
-		}
-		if (dot)
-			buf[idx] = '.';
-		memcpy(buf + idx + dot, k, len);
-		idx += len + dot;
-		if (dot == 0)
-			dot = 1;
-	}
-	buf[idx] = '\0';
-	return snd_config_search(config, buf, result);
+		if (config->type != SND_CONFIG_TYPE_COMPOUND)
+			return -ENOENT;
+		err = _snd_config_search(config, k, -1, &n);
+		if (err < 0)
+			return err;
+		config = n;
+	}
+	va_end(arg);
+	*result = n;
+	return 0;
 }
 
 snd_config_t *snd_config = 0;
diff --git a/src/control/cards.c b/src/control/cards.c
index da6b93f3..d9c39405 100644
--- a/src/control/cards.c
+++ b/src/control/cards.c
@@ -36,17 +36,19 @@ int snd_card_load(int card)
 {
 	int open_dev;
 	char control[32];
-	char aload[32];
 
 	sprintf(control, SND_FILE_CONTROL, card);
-	sprintf(aload, SND_FILE_LOAD, card);
 
 	if ((open_dev=open(control, O_RDONLY)) < 0) {
-		close(open(aload, O_RDONLY));
-	} else {
+		char aload[32];
+		sprintf(aload, SND_FILE_LOAD, card);
+		open_dev = open(aload, O_RDONLY);
+	}
+	if (open_dev >= 0) {
 		close (open_dev);
+		return 0;
 	}
-	return 0;
+	return open_dev;
 }
 
 int snd_cards(void)
@@ -70,50 +72,39 @@ int snd_cards(void)
 
 unsigned int snd_cards_mask(void)
 {
-	int fd, idx;
+	int idx;
 	unsigned int mask;
-	char filename[32];
 	static unsigned int save_mask = 0;
 
 	if (save_mask)
 		return save_mask;
 	for (idx = 0, mask = 0; idx < SND_CARDS; idx++) {
-	        snd_card_load(idx);
-		sprintf(filename, SND_FILE_CONTROL, idx);
-		if ((fd = open(filename, O_RDWR)) < 0) {
-			snd_card_load(idx);
-			if ((fd = open(filename, O_RDWR)) < 0)
-				continue;
-		}
-		close(fd);
-		mask |= 1 << idx;
+	        if (snd_card_load(idx) >= 0)
+			mask |= 1 << idx;
 	}
 	save_mask = mask;
 	return mask;
 }
 
-int snd_card_name(const char *string)
+int snd_card_get_index(const char *string)
 {
-	int card, bitmask;
+	int card;
 	snd_ctl_t *handle;
-	struct snd_ctl_hw_info info;
+	snd_ctl_hw_info_t info;
 
 	if (!string || *string == '\0')
 		return -EINVAL;
-	bitmask = snd_cards_mask();
-	if (!bitmask)
-		return -ENODEV;
 	if ((isdigit(*string) && *(string + 1) == 0) ||
 	    (isdigit(*string) && isdigit(*(string + 1)) && *(string + 2) == 0)) {
 		sscanf(string, "%i", &card);
 		if (card < 0 || card > 31)
 			return -EINVAL;
-		if (card < 0 || !((1 << card) & bitmask))
-			return -EINVAL;
-		return card;
+	        if (snd_card_load(card) >= 0)
+			return card;
+		return -EINVAL;
 	}
 	for (card = 0; card < 32; card++) {
-		if (!((1 << card) & bitmask))
+		if (snd_card_load(card) < 0)
 			continue;
 		if (snd_ctl_open(&handle, card) < 0)
 			continue;
@@ -131,7 +122,7 @@ int snd_card_name(const char *string)
 int snd_card_get_name(int card, char **name)
 {
 	snd_ctl_t *handle;
-	struct snd_ctl_hw_info info;
+	snd_ctl_hw_info_t info;
 	int err;
 	
 	if (name == NULL)
@@ -152,7 +143,7 @@ int snd_card_get_name(int card, char **name)
 int snd_card_get_longname(int card, char **name)
 {
 	snd_ctl_t *handle;
-	struct snd_ctl_hw_info info;
+	snd_ctl_hw_info_t info;
 	int err;
 	
 	if (name == NULL)
diff --git a/src/control/control.c b/src/control/control.c
index 5c3dcfb8..1a7740e7 100644
--- a/src/control/control.c
+++ b/src/control/control.c
@@ -84,7 +84,7 @@ int snd_ctl_file_descriptor(snd_ctl_t *handle)
 	return handle->fd;
 }
 
-int snd_ctl_hw_info(snd_ctl_t *handle, struct snd_ctl_hw_info *info)
+int snd_ctl_hw_info(snd_ctl_t *handle, snd_ctl_hw_info_t *info)
 {
 	assert(handle && info);
 	if (ioctl(handle->fd, SND_CTL_IOCTL_HW_INFO, info) < 0)
diff --git a/src/control/defaults.c b/src/control/defaults.c
index a2cd5603..bb87c8eb 100644
--- a/src/control/defaults.c
+++ b/src/control/defaults.c
@@ -31,7 +31,7 @@ static int defaults_card(const char *env)
 	e = getenv(env);
 	if (!e)
 		return -ENOENT;
-	return snd_card_name(e);
+	return snd_card_get_index(e);
 }
 
 static int defaults_device(const char *env)
diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index 948046c8..05982635 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -523,7 +523,7 @@ static int _snd_pcm_open_hw(snd_pcm_t **handlep, snd_config_t *conf,
 				err = snd_config_string_get(n, &str);
 				if (err < 0)
 					return -EINVAL;
-				card = snd_card_name(str);
+				card = snd_card_get_index(str);
 				if (card < 0)
 					return card;
 			}
@@ -569,7 +569,7 @@ static int _snd_pcm_open_plug(snd_pcm_t **handlep, snd_config_t *conf,
 				err = snd_config_string_get(n, &str);
 				if (err < 0)
 					return -EINVAL;
-				card = snd_card_name(str);
+				card = snd_card_get_index(str);
 				if (card < 0)
 					return card;
 			}
diff --git a/test/control.c b/test/control.c
index 14675b9c..24e4d78d 100644
--- a/test/control.c
+++ b/test/control.c
@@ -6,7 +6,7 @@ int main(void)
 {
 	int idx, idx1, cards, err;
 	snd_ctl_t *handle;
-	struct snd_ctl_hw_info info;
+	snd_ctl_hw_info_t info;
 	snd_pcm_info_t pcminfo;
 	snd_mixer_info_t mixerinfo;
 	snd_rawmidi_info_t rawmidiinfo;
diff --git a/test/mixer.c b/test/mixer.c
index 34dd3756..9cdd82be 100644
--- a/test/mixer.c
+++ b/test/mixer.c
@@ -32,7 +32,7 @@ int main(void)
 {
 	int idx, idx1, cards, err;
 	snd_ctl_t *handle;
-	struct snd_ctl_hw_info info;
+	snd_ctl_hw_info_t info;
 
 	cards = snd_cards();
 	printf("Detected %i soundcard%s...\n", cards, cards > 1 ? "s" : "");