protocol

# loggingp

> Logging events to files protocol.

author:
  `Paulo Moura`
version:
  `1.0`
date:
  `2011/1/6`

compilation flags:
  `static`

(no dependencies on other files)

## Public interface

### log_file/2

> Access to the table of log files.

compilation flags:
  `static`
template:
  `log_file(Alias,File)`
mode – number of proofs:
  `log_file(?atom,?atom) – zero_or_more`

### define_log_file/2

> Defines a log file with alias Alias and file name File. If the log file already exists, its contents are kept. Logging is enabled by default.

compilation flags:
  `static`
template:
  `define_log_file(Alias,File)`
mode – number of proofs:
  `define_log_file(+atom,+atom) – one`

### init_log_file/2

> Initializes a new log file with alias Alias and file name File. If the log file already exists, its contents are erased. Logging is enabled by default.

compilation flags:
  `static`
template:
  `init_log_file(Alias,File)`
mode – number of proofs:
  `init_log_file(+atom,+atom) – one`

### log_event/2

> Logs an event Event to a log file with alias Alias. Fails if a log file with alias Alias is not defined.

compilation flags:
  `static`
template:
  `log_event(Alias,Event)`
mode – number of proofs:
  `log_event(+atom,+nonvar) – zero_or_one`

### logging/1

> True if logging to file with alias Alias is enabled.

compilation flags:
  `static`
template:
  `logging(Alias)`
mode – number of proofs:
  `logging(+atom) – zero_or_one`

### enable_logging/1

> Enables logging to file with alias Alias. Fails if a log file with alias Alias is not defined.

compilation flags:
  `static`
template:
  `enable_logging(Alias)`
mode – number of proofs:
  `enable_logging(+atom) – zero_or_one`

### disable_logging/1

> Disables logging to file with alias Alias. Fails if a log file with alias Alias is not defined.

compilation flags:
  `static`
template:
  `disable_logging(Alias)`
mode – number of proofs:
  `disable_logging(+atom) – zero_or_one`

## Protected interface

(none)

## Private predicates

(none)

## Operators

### (none)

## Remarks

### (none)

## See also

### (none)