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5 * modification, are permitted provided that the following conditions are
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9 * notice, this list of conditions and the following disclaimer.
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12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
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16 * used to endorse or promote products derived from this software without
17 * specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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27 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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29 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 #include "ansi-colours.h"
44 #include "open_memstream.h"
51 const char *name
= threadlocal_get_name ();
52 size_t instance_num
= threadlocal_get_instance_num ();
54 fprintf (fp
, "%s: ", program_name
);
57 fprintf (fp
, "%s", name
);
59 fprintf (fp
, "[%zu]", instance_num
);
63 fprintf (fp
, "debug: ");
66 /* Common debug function.
67 * Note: preserves the previous value of errno.
70 debug_common (bool in_server
, const char *fs
, va_list args
)
74 CLEANUP_FREE
char *str
= NULL
;
81 fp
= open_memstream (&str
, &len
);
84 /* Try to emit what we can. */
86 vfprintf (stderr
, fs
, args
);
87 fprintf (stderr
, "\n");
91 tty
= isatty (fileno (stderr
));
92 if (!in_server
&& tty
) ansi_force_colour (ANSI_FG_BOLD_BLACK
, fp
);
97 vfprintf (fp
, fs
, args
);
99 if (!in_server
&& tty
) ansi_force_restore (fp
);
101 close_memstream (fp
);
111 /* Note: preserves the previous value of errno. */
112 NBDKIT_DLL_PUBLIC
void
113 nbdkit_vdebug (const char *fs
, va_list args
)
115 debug_common (false, fs
, args
);
118 /* Note: preserves the previous value of errno. */
119 NBDKIT_DLL_PUBLIC
void
120 nbdkit_debug (const char *fs
, ...)
126 debug_common (false, fs
, args
);
132 /* This variant of debug is used when debug is called from the server
133 * code, via the debug() macro.
135 * Note: preserves the previous value of errno.
138 debug_in_server (const char *fs
, ...)
144 debug_common (true, fs
, args
);