mg_cry( conn, fmt, ... );| Parameter | Type | Description | 
|---|---|---|
| conn | const struct mg_connection * | The connection on which a problem occurred | 
| fmt | const char * | Format string without a line return | 
| ... | various | Parameters depending on the format string | 
none
The function mg_cry() is called when something happens on a connection. The function takes a format string similar to the printf() series of functions with parameters and creates a text string which can then be used for logging. The mg_cry() function prints the output to the opened error log stream. Log messages can be processed with the log_message() callback function specified in the struct mg_callbacks structure.