really create glitch-free branch

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2120 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 107 insertions, 0 deletions

diff --git a/src/pulsecore/log.h b/src/pulsecore/log.h
new file mode 100644
index 00000000..b0711dca
--- /dev/null
+++ b/src/pulsecore/log.h
@@ -0,0 +1,107 @@
+#ifndef foologhfoo
+#define foologhfoo
+
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <pulsecore/gccmacro.h>
+
+/* A simple logging subsystem */
+
+/* Where to log to */
+typedef enum pa_log_target {
+    PA_LOG_STDERR,  /* default */
+    PA_LOG_SYSLOG,
+    PA_LOG_USER,    /* to user specified function */
+    PA_LOG_NULL     /* to /dev/null */
+} pa_log_target_t;
+
+typedef enum pa_log_level {
+    PA_LOG_ERROR  = 0,    /* Error messages */
+    PA_LOG_WARN   = 1,    /* Warning messages */
+    PA_LOG_NOTICE = 2,    /* Notice messages */
+    PA_LOG_INFO   = 3,    /* Info messages */
+    PA_LOG_DEBUG  = 4,    /* debug message */
+    PA_LOG_LEVEL_MAX
+} pa_log_level_t;
+
+/* Set an identification for the current daemon. Used when logging to syslog. */
+void pa_log_set_ident(const char *p);
+
+/* Set another log target. If t is PA_LOG_USER you may specify a function that is called every log string */
+void pa_log_set_target(pa_log_target_t t, void (*func)(pa_log_level_t t, const char*s));
+
+/* Minimal log level */
+void pa_log_set_maximal_level(pa_log_level_t l);
+
+void pa_log_level_meta(
+        pa_log_level_t level,
+        const char*file,
+        int line,
+        const char *func,
+        const char *format, ...) PA_GCC_PRINTF_ATTR(5,6);
+void pa_log_levelv_meta(
+        pa_log_level_t level,
+        const char*file,
+        int line,
+        const char *func,
+        const char *format,
+        va_list ap);
+
+void pa_log_level(pa_log_level_t level, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3);
+void pa_log_levelv(pa_log_level_t level, const char *format, va_list ap);
+
+#if __STDC_VERSION__ >= 199901L
+
+/* ISO varargs available */
+
+#define pa_log_debug(...)  pa_log_level_meta(PA_LOG_DEBUG,  __FILE__, __LINE__, __func__, __VA_ARGS__)
+#define pa_log_info(...)   pa_log_level_meta(PA_LOG_INFO,   __FILE__, __LINE__, __func__, __VA_ARGS__)
+#define pa_log_notice(...) pa_log_level_meta(PA_LOG_NOTICE, __FILE__, __LINE__, __func__, __VA_ARGS__)
+#define pa_log_warn(...)   pa_log_level_meta(PA_LOG_WARN,   __FILE__, __LINE__, __func__, __VA_ARGS__)
+#define pa_log_error(...)  pa_log_level_meta(PA_LOG_ERROR,  __FILE__, __LINE__, __func__, __VA_ARGS__)
+
+#else
+
+#define LOG_FUNC(suffix, level) \
+PA_GCC_UNUSED static void pa_log_##suffix(const char *format, ...) { \
+    va_list ap; \
+    va_start(ap, format); \
+    pa_log_levelv_meta(level, NULL, 0, NULL, format, ap); \
+    va_end(ap); \
+}
+
+LOG_FUNC(debug, PA_LOG_DEBUG)
+LOG_FUNC(info, PA_LOG_INFO)
+LOG_FUNC(notice, PA_LOG_NOTICE)
+LOG_FUNC(warn, PA_LOG_WARN)
+LOG_FUNC(error, PA_LOG_ERROR)
+
+#endif
+
+#define pa_log pa_log_error
+
+#endif