fastfetch-sys 2.43.0

A neofetch like system information tool
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138

#include "sound.h"

#ifdef FF_HAVE_PULSE
#include <common/library.h>
#include <pulse/pulseaudio.h>

static void paSinkInfoCallback(pa_context *c, const pa_sink_info *i, int eol, void *userdata)
{
    FF_UNUSED(c);

    if(eol > 0 || !i)
        return;

    FFSoundDevice* device = ffListAdd(userdata);
    ffStrbufInitS(&device->identifier, i->name);
    ffStrbufInitStatic(&device->platformApi, "PulseAudio");
    ffStrbufTrimRightSpace(&device->identifier);
    ffStrbufInitS(&device->name, i->description);
    ffStrbufTrimRightSpace(&device->name);
    ffStrbufTrimLeft(&device->name, ' ');
    device->volume = i->mute ? 0 : (uint8_t) ((i->volume.values[0] * 100 + PA_VOLUME_NORM / 2 /*round*/) / PA_VOLUME_NORM);
    device->active = i->active_port && i->active_port->available != PA_PORT_AVAILABLE_NO;
    device->main = false;
}

static void paServerInfoCallback(FF_MAYBE_UNUSED pa_context *c, const pa_server_info *i, void *userdata)
{
    if(!i) return;

    FF_STRBUF_AUTO_DESTROY api = ffStrbufCreate();
    const char* realServer = strstr(i->server_name, "(on ");
    if (realServer)
    {
        ffStrbufSetS(&api, realServer + strlen("(on "));
        ffStrbufTrimRight(&api, ')');
    }
    else
        ffStrbufSetF(&api, "%s %s", i->server_name, i->server_version);

    FF_LIST_FOR_EACH(FFSoundDevice, device, *(FFlist*)userdata)
    {
        device->main = ffStrbufEqualS(&device->identifier, i->default_sink_name);
        ffStrbufSet(&device->platformApi, &api);
    }
}

static const char* detectSound(FFlist* devices)
{
    FF_LIBRARY_LOAD(pulse, "Failed to load libpulse" FF_LIBRARY_EXTENSION, "libpulse" FF_LIBRARY_EXTENSION, 0)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_mainloop_new)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_mainloop_get_api)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_mainloop_iterate)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_mainloop_free)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_new)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_connect)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_get_state)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_get_sink_info_list)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_get_server_info)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_context_unref)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_operation_get_state)
    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(pulse, pa_operation_unref)

    pa_mainloop* mainloop = ffpa_mainloop_new();
    if(!mainloop)
        return "Failed to create pulseaudio mainloop";

    pa_mainloop_api* mainloopApi = ffpa_mainloop_get_api(mainloop);
    if(!mainloopApi)
    {
        ffpa_mainloop_free(mainloop);
        return "Failed to get pulseaudio mainloop api";
    }

    pa_context* context = ffpa_context_new(mainloopApi, "fastfetch");
    if(!context)
    {
        ffpa_mainloop_free(mainloop);
        return "Failed to create pulseaudio context";
    }

    if(ffpa_context_connect(context, NULL, PA_CONTEXT_NOFLAGS, NULL) < 0)
    {
        ffpa_context_unref(context);
        ffpa_mainloop_free(mainloop);
        return "Failed to connect to pulseaudio context";
    }

    pa_context_state_t state;
    while((state = ffpa_context_get_state(context)) != PA_CONTEXT_READY)
    {
        if(!PA_CONTEXT_IS_GOOD(state))
        {
            ffpa_context_unref(context);
            ffpa_mainloop_free(mainloop);
            return "Failed to get pulseaudio context state";
        }

        ffpa_mainloop_iterate(mainloop, 1, NULL);
    }

    pa_operation* operation = ffpa_context_get_sink_info_list(context, paSinkInfoCallback, devices);
    if(!operation)
    {
        ffpa_context_unref(context);
        ffpa_mainloop_free(mainloop);
        return "Failed to get pulseaudio sink info list";
    }

    while(ffpa_operation_get_state(operation) == PA_OPERATION_RUNNING)
        ffpa_mainloop_iterate(mainloop, 1, NULL);

    ffpa_operation_unref(operation);

    operation = ffpa_context_get_server_info(context, paServerInfoCallback, devices);
    if(operation)
    {
        while(ffpa_operation_get_state(operation) == PA_OPERATION_RUNNING)
            ffpa_mainloop_iterate(mainloop, 1, NULL);

        ffpa_operation_unref(operation);
    }

    ffpa_context_unref(context);
    ffpa_mainloop_free(mainloop);
    return NULL;
}

#endif // FF_HAVE_PULSE

const char* ffDetectSound(FFlist* devices)
{
    #ifdef FF_HAVE_PULSE
        return detectSound(devices);
    #else
        FF_UNUSED(devices);
        return "Fastfetch was built without libpulse support";
    #endif
}