diff options
Diffstat (limited to 'src/pulsecore/log.c')
| -rw-r--r-- | src/pulsecore/log.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/pulsecore/log.c b/src/pulsecore/log.c new file mode 100644 index 00000000..c824e84d --- /dev/null +++ b/src/pulsecore/log.c @@ -0,0 +1,234 @@ +/* $Id$ */ + +/*** + 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. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdarg.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> + +#ifdef HAVE_SYSLOG_H +#include <syslog.h> +#endif + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> +#include <pulse/util.h> + +#include <pulsecore/macro.h> +#include <pulsecore/core-util.h> + +#include "log.h" + +#define ENV_LOGLEVEL "PULSE_LOG" +#define ENV_LOGMETA "PULSE_LOG_META" + +static char *log_ident = NULL, *log_ident_local = NULL; +static pa_log_target_t log_target = PA_LOG_STDERR; +static void (*user_log_func)(pa_log_level_t l, const char *s) = NULL; +static pa_log_level_t maximal_level = PA_LOG_NOTICE; + +#ifdef HAVE_SYSLOG_H +static const int level_to_syslog[] = { + [PA_LOG_ERROR] = LOG_ERR, + [PA_LOG_WARN] = LOG_WARNING, + [PA_LOG_NOTICE] = LOG_NOTICE, + [PA_LOG_INFO] = LOG_INFO, + [PA_LOG_DEBUG] = LOG_DEBUG +}; +#endif + +static const char level_to_char[] = { + [PA_LOG_ERROR] = 'E', + [PA_LOG_WARN] = 'W', + [PA_LOG_NOTICE] = 'N', + [PA_LOG_INFO] = 'I', + [PA_LOG_DEBUG] = 'D' +}; + +void pa_log_set_ident(const char *p) { + pa_xfree(log_ident); + pa_xfree(log_ident_local); + + log_ident = pa_xstrdup(p); + if (!(log_ident_local = pa_utf8_to_locale(log_ident))) + log_ident_local = pa_xstrdup(log_ident); +} + +/* To make valgrind shut up. */ +static void ident_destructor(void) PA_GCC_DESTRUCTOR; +static void ident_destructor(void) { + pa_xfree(log_ident); + pa_xfree(log_ident_local); +} + +void pa_log_set_maximal_level(pa_log_level_t l) { + pa_assert(l < PA_LOG_LEVEL_MAX); + + maximal_level = l; +} + +void pa_log_set_target(pa_log_target_t t, void (*func)(pa_log_level_t l, const char*s)) { + pa_assert(t == PA_LOG_USER || !func); + + log_target = t; + user_log_func = func; +} + +void pa_log_levelv_meta( + pa_log_level_t level, + const char*file, + int line, + const char *func, + const char *format, + va_list ap) { + + const char *e; + char *text, *t, *n, *location; + + pa_assert(level < PA_LOG_LEVEL_MAX); + pa_assert(format); + + if ((e = getenv(ENV_LOGLEVEL))) + maximal_level = atoi(e); + + if (level > maximal_level) + return; + + text = pa_vsprintf_malloc(format, ap); + + if (getenv(ENV_LOGMETA) && file && line > 0 && func) + location = pa_sprintf_malloc("[%s:%i %s()] ", file, line, func); + else if (file) + location = pa_sprintf_malloc("%s: ", pa_path_get_filename(file)); + else + location = pa_xstrdup(""); + + if (!pa_utf8_valid(text)) + pa_log_level(level, __FILE__": invalid UTF-8 string following below:"); + + for (t = text; t; t = n) { + if ((n = strchr(t, '\n'))) { + *n = 0; + n++; + } + + if (!*t) + continue; + + switch (log_target) { + case PA_LOG_STDERR: { + const char *prefix = "", *suffix = ""; + char *local_t; + +#ifndef OS_IS_WIN32 + /* Yes indeed. Useless, but fun! */ + if (isatty(STDERR_FILENO)) { + if (level <= PA_LOG_ERROR) { + prefix = "\x1B[1;31m"; + suffix = "\x1B[0m"; + } else if (level <= PA_LOG_WARN) { + prefix = "\x1B[1m"; + suffix = "\x1B[0m"; + } + } +#endif + + local_t = pa_utf8_to_locale(t); + if (!local_t) + fprintf(stderr, "%c: %s%s%s%s\n", level_to_char[level], location, prefix, t, suffix); + else { + fprintf(stderr, "%c: %s%s%s%s\n", level_to_char[level], location, prefix, local_t, suffix); + pa_xfree(local_t); + } + + break; + } + +#ifdef HAVE_SYSLOG_H + case PA_LOG_SYSLOG: { + char *local_t; + + openlog(log_ident_local ? log_ident_local : "???", LOG_PID, LOG_USER); + + local_t = pa_utf8_to_locale(t); + if (!local_t) + syslog(level_to_syslog[level], "%s%s", location, t); + else { + syslog(level_to_syslog[level], "%s%s", location, local_t); + pa_xfree(local_t); + } + + closelog(); + break; + } +#endif + + case PA_LOG_USER: { + char *x; + + x = pa_sprintf_malloc("%s%s", location, t); + user_log_func(level, x); + pa_xfree(x); + + break; + } + + case PA_LOG_NULL: + default: + break; + } + } + + pa_xfree(text); + pa_xfree(location); +} + +void pa_log_level_meta( + pa_log_level_t level, + const char*file, + int line, + const char *func, + const char *format, ...) { + + va_list ap; + va_start(ap, format); + pa_log_levelv_meta(level, file, line, func, format, ap); + va_end(ap); +} + +void pa_log_levelv(pa_log_level_t level, const char *format, va_list ap) { + pa_log_levelv_meta(level, NULL, 0, NULL, format, ap); +} + +void pa_log_level(pa_log_level_t level, const char *format, ...) { + va_list ap; + + va_start(ap, format); + pa_log_levelv_meta(level, NULL, 0, NULL, format, ap); + va_end(ap); +} |