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
|
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include "ioline.h"
#include "cli.h"
#include "module.h"
#include "sink.h"
#include "source.h"
#include "client.h"
#include "sinkinput.h"
#include "sourceoutput.h"
#include "tokenizer.h"
#include "strbuf.h"
#include "namereg.h"
#include "clitext.h"
#include "cli-command.h"
struct pa_cli {
struct pa_core *core;
struct pa_ioline *line;
void (*eof_callback)(struct pa_cli *c, void *userdata);
void *userdata;
struct pa_client *client;
int fail, verbose, kill_requested, defer_kill;
};
static void line_callback(struct pa_ioline *line, const char *s, void *userdata);
static const char prompt[] = ">>> ";
static void client_kill(struct pa_client *c);
struct pa_cli* pa_cli_new(struct pa_core *core, struct pa_iochannel *io, struct pa_module *m) {
char cname[256];
struct pa_cli *c;
assert(io);
c = malloc(sizeof(struct pa_cli));
assert(c);
c->core = core;
c->line = pa_ioline_new(io);
assert(c->line);
c->userdata = NULL;
c->eof_callback = NULL;
pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
c->client = pa_client_new(core, "CLI", cname);
assert(c->client);
c->client->kill = client_kill;
c->client->userdata = c;
c->client->owner = m;
pa_ioline_set_callback(c->line, line_callback, c);
pa_ioline_puts(c->line, "Welcome to polypaudio! Use \"help\" for usage information.\n");
pa_ioline_puts(c->line, prompt);
c->fail = c->kill_requested = c->defer_kill = 0;
c->verbose = 1;
return c;
}
void pa_cli_free(struct pa_cli *c) {
assert(c);
pa_ioline_free(c->line);
pa_client_free(c->client);
free(c);
}
static void client_kill(struct pa_client *client) {
struct pa_cli *c;
assert(client && client->userdata);
c = client->userdata;
fprintf(stderr, "CLI client killed.\n");
if (c->defer_kill)
c->kill_requested = 1;
else {
if (c->eof_callback)
c->eof_callback(c, c->userdata);
}
}
static void line_callback(struct pa_ioline *line, const char *s, void *userdata) {
struct pa_strbuf *buf;
struct pa_cli *c = userdata;
char *p;
assert(line && c);
if (!s) {
fprintf(stderr, "CLI got EOF from user.\n");
if (c->eof_callback)
c->eof_callback(c, c->userdata);
return;
}
buf = pa_strbuf_new();
assert(buf);
c->defer_kill++;
pa_cli_command_execute_line(c->core, s, buf, &c->fail, &c->verbose);
c->defer_kill--;
pa_ioline_puts(line, p = pa_strbuf_tostring_free(buf));
free(p);
if (c->kill_requested) {
if (c->eof_callback)
c->eof_callback(c, c->userdata);
} else
pa_ioline_puts(line, prompt);
}
void pa_cli_set_eof_callback(struct pa_cli *c, void (*cb)(struct pa_cli*c, void *userdata), void *userdata) {
assert(c && cb);
c->eof_callback = cb;
c->userdata = userdata;
}
|
