ALSA project - the C library reference
output.h
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1 
11 /*
12  * This library is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU Lesser General Public License as
14  * published by the Free Software Foundation; either version 2.1 of
15  * the License, or (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU Lesser General Public License for more details.
21  *
22  * You should have received a copy of the GNU Lesser General Public
23  * License along with this library; if not, write to the Free Software
24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25  *
26  */
27 
28 #ifndef __ALSA_OUTPUT_H
29 #define __ALSA_OUTPUT_H
30 
31 #include <stdarg.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
56 typedef struct _snd_output snd_output_t;
57 
59 typedef enum _snd_output_type {
65 
66 int snd_output_stdio_open(snd_output_t **outputp, const char *file, const char *mode);
67 int snd_output_stdio_attach(snd_output_t **outputp, FILE *fp, int _close);
69 size_t snd_output_buffer_string(snd_output_t *output, char **buf);
70 size_t snd_output_buffer_steal(snd_output_t *output, char **buf);
71 int snd_output_close(snd_output_t *output);
72 int snd_output_printf(snd_output_t *output, const char *format, ...)
73 #ifndef DOC_HIDDEN
74  __attribute__ ((format (printf, 2, 3)))
75 #endif
76  ;
77 int snd_output_vprintf(snd_output_t *output, const char *format, va_list args);
78 int snd_output_puts(snd_output_t *output, const char *str);
79 int snd_output_putc(snd_output_t *output, int c);
80 int snd_output_flush(snd_output_t *output);
81 
84 #ifdef __cplusplus
85 }
86 #endif
87 
88 #endif /* __ALSA_OUTPUT_H */
89 
int snd_output_printf(snd_output_t *output, const char *format,...)
Writes formatted output (like fprintf(3)) to an output handle.
Definition: output.c:71
size_t snd_output_buffer_string(snd_output_t *output, char **buf)
Returns the address of the buffer of a SND_OUTPUT_BUFFER output handle.
Definition: output.c:348
int snd_output_puts(snd_output_t *output, const char *str)
Writes a string to an output handle (like fputs(3)).
Definition: output.c:99
int snd_output_putc(snd_output_t *output, int c)
Writes a character to an output handle (like putc(3)).
Definition: output.c:110
int snd_output_flush(snd_output_t *output)
Flushes an output handle (like fflush(3)).
Definition: output.c:124
Definition: output.h:61
int snd_output_buffer_open(snd_output_t **outputp)
Creates a new output object with an auto-extending memory buffer.
Definition: output.c:383
struct _snd_output snd_output_t
Internal structure for an output object.
Definition: output.h:56
int snd_output_stdio_attach(snd_output_t **outputp, FILE *fp, int _close)
Creates a new output object using an existing stdio FILE pointer.
Definition: output.c:188
int snd_output_close(snd_output_t *output)
Closes an output handle.
Definition: output.c:57
int snd_output_vprintf(snd_output_t *output, const char *format, va_list args)
Writes formatted output (like fprintf(3)) to an output handle.
Definition: output.c:88
snd_output_type_t
Definition: output.h:59
int snd_output_stdio_open(snd_output_t **outputp, const char *file, const char *mode)
Creates a new output object writing to a file.
Definition: output.c:218
size_t snd_output_buffer_steal(snd_output_t *output, char **buf)
Returns the address of the buffer of a SND_OUTPUT_BUFFER output handle.
Definition: output.c:365
Definition: output.h:63