#include <sys/types.h> /* getgrnam() */
#include <grp.h>
#include <signal.h>
+#include <sys/resource.h>
#include "para.h"
#include "daemon.h"
color_parse_or_die(default_log_colors[i], me->log_colors[i]);
}
-/*
+/**
* Set the color for one loglevel.
*
- * arg must be of the form "ll:[fg [bg]] [attr]".
+ * \param arg Must be of the form "ll:[fg [bg]] [attr]".
*/
-static void daemon_set_log_color_or_die(char const *arg)
+void daemon_set_log_color_or_die(const char *arg)
{
char *p = strchr(arg, ':');
int ret, ll;
color_parse_or_die(p, me->log_colors[ll]);
return;
err:
- PARA_EMERG_LOG("%s: color syntax error\n", arg);
+ PARA_EMERG_LOG("%s: invalid color argument\n", arg);
exit(EXIT_FAILURE);
}
* \param color_arg_auto The value for automatic color detection.
* \param color_arg_no The value to disable colored log messages.
* \param logfile_given In auto mode colors are disabled if this value is true.
- * \param log_color_argv Color specifiers given to --log-color.
- * \param argc Number of color specifiers in \a log_color_argv.
*
- * If \a color_arg equals \a color_arg_no, color mode is disabled, i.e., calls
- * to \a para_log() will not produce colored output. If \a color_arg == \a
- * color_arg_auto, the function autodetects whether to activate colors.
- * Otherwise color mode is enabled.
+ * If color_arg equals color_arg_no, color mode is disabled. That is, calls to
+ * para_log() will not produce colored output. If color_arg equals
+ * color_arg_auto, the function detects automatically whether to activate
+ * colors. Otherwise color mode is enabled.
*
- * If color mode is to be enabled, the strings in \a log_color_argv are parsed
- * and the color scheme is updated accordingly. For each loglevel, the default
- * colors apply if there is no log_color_argv for this loglevel.
+ * If color mode is to be enabled, the default colors are set for each
+ * loglevel. They can be overwritten by calling daemon_set_log_color_or_die().
+ *
+ * \return Whether colors have been enabled by the function.
*/
-void daemon_init_colors_or_die(int color_arg, int color_arg_auto,
- int color_arg_no, bool logfile_given, char **log_color_argv,
- int argc)
+bool daemon_init_colors_or_die(int color_arg, int color_arg_auto,
+ int color_arg_no, bool logfile_given)
{
- int i;
-
if (color_arg == color_arg_no)
- return;
+ return false;
if (color_arg == color_arg_auto) {
if (logfile_given)
- return;
+ return false;
if (!isatty(STDERR_FILENO))
- return;
+ return false;
}
daemon_set_flag(DF_COLOR_LOG);
daemon_set_default_log_colors();
- for (i = 0; i < argc; i++)
- daemon_set_log_color_or_die(log_color_argv[i]);
+ return true;
}
/**
*
* \param logfile_name The full path of the logfile.
*/
-void daemon_set_logfile(char *logfile_name)
+void daemon_set_logfile(const char *logfile_name)
{
free(me->logfile_name);
me->logfile_name = NULL;
*
* \param loglevel The smallest level that should be logged.
*/
-void daemon_set_loglevel(char *loglevel)
+void daemon_set_loglevel(const char *loglevel)
{
int ret = get_loglevel_by_name(loglevel);
/**
* Log the startup message containing the paraslash version.
+ *
+ * \param name The name of the executable.
+ *
+ * First the given \a name is prefixed with the string "para_". Next the git
+ * version is appended. The resulting string is logged with priority "INFO".
*/
-void daemon_log_welcome(const char *whoami)
+void daemon_log_welcome(const char *name)
{
- PARA_INFO_LOG("welcome to %s " PACKAGE_VERSION " ("BUILD_DATE")\n",
- whoami);
+ PARA_INFO_LOG("welcome to para_%s-" PACKAGE_VERSION " \n", name);
+}
+
+/**
+ * Renice the calling process.
+ *
+ * \param prio The priority value to set.
+ *
+ * Errors are not considered fatal, but a warning message is logged if the
+ * underlying call to setpriority(2) fails.
+ */
+void daemon_set_priority(int prio)
+{
+ if (setpriority(PRIO_PROCESS, 0, prio) < 0)
+ PARA_WARNING_LOG("could not set priority to %d: %s\n", prio,
+ strerror(errno));
}
/**