/*
- Copyright 2015 IoT.bzh
+ Copyright (C) 2015-2020 "IoT.bzh"
author: José Bollo <jose.bollo@iot.bzh>
limitations under the License.
*/
+#include <stdio.h>
+#include <stdarg.h>
+
#include "verbose.h"
-int verbosity = 1;
+#define MASKOF(x) (1 << (x))
+
+#if !defined(DEFAULT_LOGLEVEL)
+# define DEFAULT_LOGLEVEL Log_Level_Warning
+#endif
+
+#if !defined(DEFAULT_LOGMASK)
+# define DEFAULT_LOGMASK (MASKOF((DEFAULT_LOGLEVEL) + 1) - 1)
+#endif
+
+#if !defined(MINIMAL_LOGLEVEL)
+# define MINIMAL_LOGLEVEL Log_Level_Error
+#endif
+
+#if !defined(MINIMAL_LOGMASK)
+# define MINIMAL_LOGMASK (MASKOF((MINIMAL_LOGLEVEL) + 1) - 1)
+#endif
+
+static const char *names[] = {
+ "emergency",
+ "alert",
+ "critical",
+ "error",
+ "warning",
+ "notice",
+ "info",
+ "debug"
+};
+
+static const char asort[] = { 1, 2, 7, 0, 3, 6, 5, 4 };
+
+int logmask = DEFAULT_LOGMASK | MINIMAL_LOGMASK;
+
+void (*verbose_observer)(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args);
+
+#define CROP_LOGLEVEL(x) \
+ ((x) < Log_Level_Emergency ? Log_Level_Emergency \
+ : (x) > Log_Level_Debug ? Log_Level_Debug : (x))
+
+#if defined(VERBOSE_WITH_SYSLOG)
+
+#include <syslog.h>
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char *p;
+
+ if (file == NULL || vasprintf(&p, fmt, args) < 0)
+ vsyslog(loglevel, fmt, args);
+ else {
+ syslog(CROP_LOGLEVEL(loglevel), "%s [%s:%d, %s]", p, file, line, function?:"?");
+ free(p);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ openlog(name, LOG_PERROR, authority ? LOG_AUTH : LOG_USER);
+}
+
+#elif defined(VERBOSE_WITH_SYSTEMD)
+
+#define SD_JOURNAL_SUPPRESS_LOCATION
+
+#include <systemd/sd-journal.h>
+
+static const char *appname;
+
+static int appauthority;
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char lino[20];
+
+ if (file == NULL) {
+ sd_journal_printv(loglevel, fmt, args);
+ } else {
+ sprintf(lino, "%d", line);
+ sd_journal_printv_with_location(loglevel, file, lino, function, fmt, args);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
+#else
+
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/uio.h>
+#include <pthread.h>
+
+static const char *appname;
+
+static int appauthority;
+
+static const char *prefixes[] = {
+ "<0> EMERGENCY",
+ "<1> ALERT",
+ "<2> CRITICAL",
+ "<3> ERROR",
+ "<4> WARNING",
+ "<5> NOTICE",
+ "<6> INFO",
+ "<7> DEBUG"
+};
+
+static const char *prefixes_colorized[] = {
+ "<0> " COLOR_EMERGENCY "EMERGENCY" COLOR_DEFAULT,
+ "<1> " COLOR_ALERT "ALERT" COLOR_DEFAULT,
+ "<2> " COLOR_CRITICAL "CRITICAL" COLOR_DEFAULT,
+ "<3> " COLOR_ERROR "ERROR" COLOR_DEFAULT,
+ "<4> " COLOR_WARNING "WARNING" COLOR_DEFAULT,
+ "<5> " COLOR_NOTICE "NOTICE" COLOR_DEFAULT,
+ "<6> " COLOR_INFO "INFO" COLOR_DEFAULT,
+ "<7> " COLOR_DEBUG "DEBUG" COLOR_DEFAULT
+};
+
+static int colorize = 0;
+
+static int tty;
+
+static const char chars[] = { '\n', '?', ':', ' ', '[', ',', ']' };
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char buffer[4000];
+ char lino[40];
+ int saverr, n, rc;
+ struct iovec iov[20];
+
+ /* save errno */
+ saverr = errno;
+
+ /* check if tty (2) or not (1) */
+ if (!tty)
+ tty = 1 + isatty(STDERR_FILENO);
+
+ /* prefix */
+ if (colorize)
+ iov[0].iov_base = (void*)prefixes_colorized[CROP_LOGLEVEL(loglevel)] + (tty - 1 ? 4 : 0);
+ else
+ iov[0].iov_base = (void*)prefixes[CROP_LOGLEVEL(loglevel)] + (tty - 1 ? 4 : 0);
+ iov[0].iov_len = strlen(iov[0].iov_base);
+
+ /* " " */
+ iov[1].iov_base = (void*)&chars[2];
+ iov[1].iov_len = 2;
+
+ n = 2;
+ if (fmt) {
+ iov[n].iov_base = buffer;
+ errno = saverr;
+ rc = vsnprintf(buffer, sizeof buffer, fmt, args);
+ if (rc < 0)
+ rc = 0;
+ else if ((size_t)rc > sizeof buffer) {
+ /* if too long, ellipsis the end with ... */
+ rc = (int)sizeof buffer;
+ buffer[rc - 1] = buffer[rc - 2] = buffer[rc - 3] = '.';
+ }
+ iov[n++].iov_len = (size_t)rc;
+ }
+ if (file && (!fmt || tty == 1 || loglevel <= Log_Level_Warning)) {
+
+ if (colorize)
+ {
+ iov[n].iov_base = (void*)COLOR_FILE;
+ iov[n++].iov_len = strlen(COLOR_FILE);
+ }
+
+ /* "[" (!fmt) or " [" (fmt) */
+ iov[n].iov_base = (void*)&chars[3 + !fmt];
+ iov[n++].iov_len = 2 - !fmt;
+ /* file */
+ iov[n].iov_base = (void*)file;
+ iov[n++].iov_len = strlen(file);
+ /* ":" */
+ iov[n].iov_base = (void*)&chars[2];
+ iov[n++].iov_len = 1;
+ if (line) {
+ /* line number */
+ iov[n].iov_base = lino;
+ iov[n++].iov_len = snprintf(lino, sizeof lino, "%d", line);
+ } else {
+ /* "?" */
+ iov[n].iov_base = (void*)&chars[1];
+ iov[n++].iov_len = 1;
+ }
+ /* "," */
+ iov[n].iov_base = (void*)&chars[5];
+ iov[n++].iov_len = 1;
+ if (function) {
+ /* function name */
+ iov[n].iov_base = (void*)function;
+ iov[n++].iov_len = strlen(function);
+ } else {
+ /* "?" */
+ iov[n].iov_base = (void*)&chars[1];
+ iov[n++].iov_len = 1;
+ }
+ iov[n].iov_base = (void*)&chars[6];
+ iov[n++].iov_len = 1;
+
+ if (colorize)
+ {
+ iov[n].iov_base = (void*)COLOR_DEFAULT;
+ iov[n++].iov_len = strlen(COLOR_DEFAULT);
+ }
+ }
+ if (n == 2) {
+ /* "?" */
+ iov[n].iov_base = (void*)&chars[1];
+ iov[n++].iov_len = 1;
+ }
+ /* "\n" */
+ iov[n].iov_base = (void*)&chars[0];
+ iov[n++].iov_len = 1;
+
+ /* emit the message */
+ pthread_mutex_lock(&mutex);
+ writev(STDERR_FILENO, iov, n);
+ pthread_mutex_unlock(&mutex);
+
+ /* restore errno */
+ errno = saverr;
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
+#endif
+
+void vverbose(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ void (*observer)(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args) = verbose_observer;
+
+ if (!observer)
+ _vverbose_(loglevel, file, line, function, fmt, args);
+ else {
+ va_list ap;
+ va_copy(ap, args);
+ _vverbose_(loglevel, file, line, function, fmt, args);
+ observer(loglevel, file, line, function, fmt, ap);
+ va_end(ap);
+ }
+}
+
+void verbose(int loglevel, const char *file, int line, const char *function, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vverbose(loglevel, file, line, function, fmt, ap);
+ va_end(ap);
+}
+
+void set_logmask(int lvl)
+{
+ logmask = lvl | MINIMAL_LOGMASK;
+}
+
+void verbose_add(int level)
+{
+ set_logmask(logmask | MASKOF(level));
+}
+
+void verbose_sub(int level)
+{
+ set_logmask(logmask & ~MASKOF(level));
+}
+
+void verbose_clear()
+{
+ set_logmask(0);
+}
+
+void verbose_dec()
+{
+ verbosity_set(verbosity_get() - 1);
+}
+
+void verbose_inc()
+{
+ verbosity_set(verbosity_get() + 1);
+}
+
+int verbosity_to_mask(int verbo)
+{
+ int x = verbo + Log_Level_Error;
+ int l = CROP_LOGLEVEL(x);
+ return (1 << (l + 1)) - 1;
+}
+
+int verbosity_from_mask(int mask)
+{
+ int v = 0;
+ while (mask > verbosity_to_mask(v))
+ v++;
+ return v;
+}
+
+void verbosity_set(int verbo)
+{
+ set_logmask(verbosity_to_mask(verbo));
+}
+
+int verbosity_get()
+{
+ return verbosity_from_mask(logmask);
+}
+
+int verbose_level_of_name(const char *name)
+{
+ int c, i, r, l = 0, u = sizeof names / sizeof * names;
+ while (l < u) {
+ i = (l + u) >> 1;
+ r = (int)asort[i];
+ c = strcasecmp(names[r], name);
+ if (!c)
+ return r;
+ if (c < 0)
+ l = i + 1;
+ else
+ u = i;
+ }
+ return -1;
+}
+
+const char *verbose_name_of_level(int level)
+{
+ return level == CROP_LOGLEVEL(level) ? names[level] : NULL;
+}
+
+void verbose_colorize()
+{
+ colorize = 1;
+}
+int verbose_is_colorized()
+{
+ return colorize;
+}
Code Review / src / app-framework-binder.git / blobdiff