ceph/src/civetweb/docs/api/mg_cry.md

   1 # Civetweb API Reference
   2
   3 ### `mg_cry( conn, fmt, ... );`
   4
   5 ### Parameters
   6
   7 | Parameter | Type | Description |
   8 | :--- | :--- | :--- |
   9 |**`conn`**|`const struct mg_connection *`|The connection on which a problem occured|
  10 |**`fmt`**|`const char *`|Format string without a line return|
  11 |**`...`**|*various*|Parameters depending on the format string|
  12
  13 ### Return Value
  14
  15 *none*
  16
  17 ### Description
  18
  19 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.
  20
  21 ### See Also
  22
  23 * [`struct mg_callbacks;`](mg_callbacks.md)