Introduction

If you are analyzing the example and BSP files of a typical SCIOPTA delivery, you will see that there is often a process called SCP_logd. In the SCIOPTA “SCONF” configuration utility, you can see SCP_logd defined as a static process in the system module as follows:

LogDaemon is a process which receives log messages from a user and sends it to an output device. Therefore, the user can generate debug- and log-messages to test the program flow. By setting an adequate (low) priority of the SCP_logd process the influence on the system timing can be minimized. The LogDaemon decouples occurrence and logging of events.

Using LogDaemon

The following three functions are used in LogDaemon applications:

logd_t NEARPTR logd_new()
void logd_printf()
void logd_destroy()

The function logd_new() creates a new LogDaemon instance.

The function logd_printf() sends a user defined message to the LogDaemon.

The function logd_destroy() deletes an existing LogDaemon instance.

Example
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logd_t NEARPTR logd;
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logd = logd_new( “/SCP_logd”,
LOGD_INFO,
DRIVER_NAME,
0,
SC_FATAL_IF_TMO);
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logd_printf (logd, LOGD_INFO, “My Message\n”);
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logd_destroy (&logd);
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