features idk

By: xomf

Makefile

@@ -5,7 +5,8 @@ CCARGS=-Isrc/include -Wall -pedantic
 MODULES= \
 		modules/clock.dim   \
 		modules/battery.dim \
-		modules/timesince.dim
+		modules/timesince.dim \
+		modules/volume.dim
 
 
 all: $(BIN) $(MODULES) compile_commands.json
@@ -15,7 +16,8 @@ $(BIN): src/main.c src/plug.c src/socket.c src/util.c
 
 
 modules/%.dim: src/modules/%.c
-	$(CC) -o $@ $^ -rdynamic -shared -fPIC $(CCARGS)
+	mkdir -p $(dir $@)
+	$(CC) -o $@ $^ -rdynamic -shared -fPIC $(CCARGS) -lasound
 
 compile_commands.json:
 	compiledb -n make

src/include/plug.h

@@ -5,6 +5,7 @@
 #include <stddef.h>
 #include <stdbool.h>
 
+
 typedef void* (*plug_init_f)        (void);
 typedef void* (*plug_pre_reload_f)  (void);
 typedef void  (*plug_post_reload_f) (void*);
@@ -31,5 +32,6 @@ char* poll_plugins(char* sep);
 void free_plugins(void);
 void reload_plugins(void);
 
+
 #endif
 

src/include/plug_utils.h

@@ -0,0 +1,36 @@
+
+#ifndef _H_PLUG_UTILS
+#define _H_PLUG_UTILS
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+void* make_result_val(void* v, int size) {
+    void* v2 = malloc(size);
+    memcpy(v2, v, size);
+    return v2;
+}
+
+#define make_result(is_ok, v) ((Result){ \
+    .is_ok = (is_ok), \
+    .val = make_result_val((v), sizeof((v))) \
+})
+
+#define Ok(v) make_result(true, v)
+#define Ok(v) make_result(true, v)
+
+
+typedef struct Result {
+    bool is_ok;
+    void* val;
+} Result;
+
+void* res_unwrap(Result r) {
+    if (!r.is_ok) assert(0);
+    return r.val;
+}
+
+
+#endif

src/main.c

@@ -8,6 +8,16 @@
 #include "plug.h"
 #include "socket.h"
 
+// TODO: Modules to add:
+//  - Sound level
+//  - cpu %
+//  - ram %
+//  - weather
+//  - cpu temp
+//  - uptime
+//  - storage usage
+//  - Network name + strength
+
 void interrupt_handler(int);
 void print_help(void);
 

src/modules/volume.c

@@ -0,0 +1,63 @@
+// Authored by xomf <xomf@the-atf-shot-my.dog>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+#include <stdbool.h>
+#include <alsa/asoundlib.h>
+
+
+typedef struct plug_t {
+    char* name;
+    char* version;
+} plug_t;
+
+
+static plug_t* p = {0};
+
+int get_alsa_volume(void) {
+    long min, max, volume;
+    snd_mixer_t* handle;
+    snd_mixer_selem_id_t* sid;
+    const char* card = "default";
+    const char* selem_name = "Master";
+    snd_mixer_open(&handle, 0);
+    snd_mixer_attach(handle, card);
+    snd_mixer_selem_register(handle, NULL, NULL);
+    snd_mixer_load(handle);
+    snd_mixer_selem_id_alloca(&sid);
+    snd_mixer_selem_id_set_index(sid, 0);
+    snd_mixer_selem_id_set_name(sid, selem_name);
+    snd_mixer_elem_t* elem = snd_mixer_find_selem(handle, sid);
+    snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
+    snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &volume);
+    snd_mixer_close(handle);
+
+    int percentage = (volume - min) * 100 / (max - min);
+    return percentage;
+}
+
+
+void* plug_init(void) {
+    p = malloc(sizeof(plug_t));
+    assert(p);
+    p->name = "Volume";
+    p->version = "0.0.1";
+    return p;
+}
+
+void* plug_pre_reload(void) {
+    return p;
+}
+
+void plug_post_reload(void* pp) {
+    p = pp;
+}
+
+void plug_poll(char* buf, size_t len) {
+    int volume = get_alsa_volume();
+    snprintf(buf, len, "Volume: %d%%", volume);
+}
+
+void plug_free(void) {}